Jump to content, Georgia Institute of Technology, College of Engineering, School of Electrical and Computer Engineering (ECE), ECE Research, ECE Research Labs
College of Engineering
Search | Contact ECE | Feedback | BuzzPort
GT Home > COE Home > ECE Home > Research > Labs > GEMS
Georgia Tech
Georgia Tech Electronics and Micro-System Lab (GEMS)
GEMS

Home || About Dr. Wang || Group Members || Publications || Research || Group Pictures || News

Service || IEEE Atlanta || Teaching || ECE6420 Design Competition || PA Survey || Contact Us


Latest News

  • Nov 2021

    Bryan's paper entitled "A 26-32 GHz Dual-Polarization Receiver with Rapid Response Mixed-Signal Polarization Alignment Technique" has been accepted for publication at IEEE Solid-State Circuits Letter!

    Congratulations Bryan and team!

  • Nov 2021

    Adam's paper entitled "Impedance Characterization and Modeling of Subcellular to Micro-Sized Electrodes with Varying Materials and PEDOT:PSS-Coating for Bioelectrical Interfaces" has been accepted for publication at ACS Applied Electronic Materials.

    To the best of our knowledge, this paper presents the most comprehensive characterization on complex interfacial impedance for ultra-miniaturized electrodes of different electrode materials (Au, Pt, TiN, and ITO) and PEDOT:PSS-Coating. The results are useful for guiding microelectrode designs in a wide variety of bioelectrical interfaces, bioelectronics, and biosensors.

    Congratulations Adam and team!

  • Oct 2021

    Our collaborative paper on fully integrated parity-time-symmetric electronics with Professors Xuan Zhang and Lan Yang's teams at Washington University, St Louis has been accepted for publication at Nature Nanotechnology.

  • Oct 2021

    Our paper entitled "A CMOS Cellular Interface Array for Digital Physiology Featuring High-Density Multi-Modal Pixels and Reconfigurable Sampling Rate" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2022.

    Congratulations, Adam, Yuguo, and the team!

  • Oct 2021

    Our paper entitled "A Broadband Mm-Wave VSWR Resilient Joint True Power Detector and Impedance Sensor Supporting Single-Ended Antenna Interfaces" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2022.

    Congratulations, David and the team!

  • Oct 2021

    Our paper entitled "A 26-39 GHz Broadband Ultra-Compact High-Linearity Switchless Hybrid N/PMOS Bi-Directional PA/LNA Front-End for Multi-Band 5G Large- Scaled MIMO System" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2022.

    Congratulations, Jeongsoo!

  • Aug 2021

    We are super excited to have four new PhD students, Youngin Kim, Basem Abdelaziz, Hangxing Liu, and Yifan Pan, join our research group! We would like to extend our warmest welcome. Big congratulations on being part of the team!

  • Jul 2021

    Adam has passed his PhD proposal exam. The title of his PhD proposal is "CMOS Multi-Modal Cellular and Electrochemical Sensing/Actuating Array with Integrated Microfluidics for Sample Manipulation."

    Congratulations, Adami! We also want to thank the other two committee members, Professor Omer Inan and Professor Madhavan Swaminathan.

  • Jul 2021

    GEMS's group will present two papers at MicroTAS 2021. Both papers are led by Dongwon. Congratulations to Dongwon and our team!

    D. Lee, A. Wang, and H. Wang, "Long-term stable and micro-sized on-chip reference electrode with biocompatible coating," Proc. The 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences (uTAS), Oct. 2021.

    D. Lee, Q. Lu, Y. Ke, and H. Wang, "Repeatable and Reconfigurable control of DNA-origami orientation using dielectrophoresis," Proc. The 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences (uTAS), Oct. 2021.

  • Jun 2021

    Sasi has passed his PhD proposal exam. The title of his PhD proposal is "Millimeter-Wave MIMO Transmitter Systems for Reliability, Security and Sensing."

    Congratulations, Sasi! We also want to thank the other two committee members, Professor Arijit Raychowdhury and Professor Matthieu Bloch.

     

  • Jun 2021

    Sasi and the team's RFIC paper entitled "A Mm-Wave Transmitter MIMO with Constellation Decomposition Array (CDA) for Keyless Physically Secured High-Throughput Links" won the IEEE RFIC 2021 Best Student Paper Award (2nd Place)!

    Congratulations to Sasi, Elham, Tzu-Yuan, and Sensen on this excellent work!

    Sasi's paper presents a new scheme for MIMO physical layer security to support high-throughput wireless links.

     
  • May 2021

    Doohwan's paper entitled "A CMOS 21952-Pixel Multi-Modal Cell-Based Biosensor with 4-Point Impedance Sensing for Holistic Cellular Characterization" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Doohwan!

  • May 2021

    Dr. Wang has been awarded the 2021 Qualcomm Faculty Award for his technical contributions to Next-Generation Wireless Circuits, Systems, and Infrastructures that have widely impacted the research and development in the commercial sector of the semiconductor industry. 

  • May 2021

    Fei's paper entitled "A Broadband Linear Ultra-Compact Mm-Wave Power Amplifier with Distributed-Balun Output Network: Analysis and Design" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Fei!

  • Apr 2021

    Sasi's paper entitled "Broadband Active Load Modulation Power Amplification Using Coupled-Line Baluns: A Multi-Frequency Role-Exchange Coupler Doherty Amplifier Architecture" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Sasi!

  • Apr 2021

    Dr. Wang is featured in a recent Globalfoundries Blog on Academic Collaborations and 6G Leadership as one of three highlighted, high-profile university partner professors.

    Many thanks to Globalfoundries for featuring our research and their generous sponsorship!

  • Apr 2021

    Pradyot Yadav won the 2021 Barry Goldwater Scholarship! Pradyot is chosen for his academic excellence in undergraduate research work and dedication to furthering research and development in their respective fields.

    This is one of the most prestigeous undergraduate scholarship in the natural sciences, mathematics, and engineering in America.The Barry Goldwater Scholarship and Excellence in Education Foundation was established by Congress in 1986 to serve as a living memorial to honor the lifetime work of Senator Barry Goldwater, who served his country for 56 years as a soldier and statesman, including 30 years in the U.S. Senate.

  • Apr 2021

    Bryan's paper entitled "Experimental RF Characterization of Ferroelectric Hafnium Zirconium Oxide Material at GHz for Microwave Applications" has been accepted for publication at Proc. 79th Device Research Conference (DRC). Congratulations Bryan and team!

  • Mar 2021

    David's paper entitled "A Single-Ended Coupler-Based VSWR Resilient Joint Mm-Wave True Power Detector and Impedance Sensor" has been accepted for publication at IEEE Microwave and Wireless Components Letters (MWCL). Congratulations David!

  • Mar 2021

    Fei's paper entitled "A High-Power Broadband Multi-Primary DAT-Based Doherty Power Amplifier for Mm-Wave 5G Applications" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Fei!

  • Feb 2021

    GEMS's group will present 4 papers at IMS 2021 and 2 papers at RFIC 2021. This is a fantastic achievement! We are expanding our research in the areas of 6G/Beyond-5G wireless, mm-Wave built-in self-testing (BiST), AI-assisted RF/mm-Wave circuit designs, and wireless physical layer security. Congratulations to our team!

    T. Huang, N. S. Mannem, S. Li, H. Wang, "A 35-100GHz Continuous Mode Coupler Balun Doherty Power Amplifier with Differential Complex Neutralization in 250nm InP," accepted and to appear in Proc. IEEE International Microwave Symposium (IMS), Jun. 2021.

    D. Munzer, N. S. Mannem, H. Wang, "A Single-Ended Coupler-Based VSWR Resilient Joint Mm-Wave True Power Detector and Impedance Sensor," accepted and to appear in Proc. IEEE International Microwave Symposium (IMS), Jun. 2021.

    T. Li, H. Lavasani, S. Li, H. Wang, "A V-Band Doubly Hybrid NMOS/PMOS Four-Way Distributed-Active-Transformer Power Amplifier for Nonlinearity Cancellation and Joint Linearity/Efficiency Optimization," accepted and to appear in Proc. IEEE International Microwave Symposium (IMS), Jun. 2021.

    S. Er, E. Liu, M. Chen, Y. Li, Y. Liu, T. Zhao, H. Wang, "Deep Learning Assisted End-to-End Synthesis of mm-Wave Passive Networks with 3D EM Structures: A Study on A Transformer-Based Matching Network," accepted and to appear in Proc. IEEE International Microwave Symposium (IMS), Jun. 2021. --- 2021 IEEE IMS Conference Best Student Paper Award finalist.

    N. S. Mannem, E. Erfani, T. Huang, S. Li, H. Wang, "A Mm-Wave Transmitter MIMO with Constellation Decomposition Array (CDA) for Keyless Physically Secured High-Throughput Links," accepted and to appear in Proc. IEEE Radio Frequency Integrated Circuits (RFIC), Jun. 2021.

    S. Li, T. Huang, Y, Liu, H. Wang, "A Millimeter-Wave Reconfigurable LNA in 45nm CMOS SOI with Over 23dB Peak Gain and Sub-3dB NF for Different 5G Operating Bands and Improved Dynamic Range," accepted and to appear in Proc. IEEE Radio Frequency Integrated Circuits (RFIC), Jun. 2021.

  • Feb 2021

    Our paper entitled "A CMOS Multi-Modal Electrochemical and Impedance Cellular Sensing Array for Massively Paralleled Exoelectrogen Screening" has been accepted for publication at IEEE Transactions on Biomedical Circuits and Systems. This paper is based on our collaboration with Lawrence Berkeley National Laboratory and Emory University.

    Congratulations Sagar and team!

  • Feb 2021

    Dr. Wang will give a tutorial talk on Fundamentals of RF and Mm-Wave Power Amplifier Designs at ISSCC 2021. The tutorial video and slides are available in the Education package of the ISSCC registration.

    Please join us if you are interested in learning Power Amplifier (PA) fundamentals, Advanced PA Architectures, and the state-of-the-art design examples! Many thanks to Professors Hongtao Xu (Fudan University, China), Andrea Bevilacqua (University of Padova, Italy), and Ali Sheikholeslami (University of Toronto) as well as my Georgia Tech GEMS team members for their numerous suggestions and great assistance.

  • Feb 2021

    Another exciting paper on Machine Learning based direct synthesis of mm-Wave circuits to be presented at IMS2021! This is based on our collaboration with Prof. Tho Zhao’s team at Georgia Tech ISyE and Computer Science department. Congratulations to the team!

    S. Er, E. Liu, M. Chen, Y. Li, Y. Liu, T. Zhao, H. Wang, "Deep Learning Assisted End-to-End Synthesis of mm-Wave Passive Networks with 3D EM Structures: A Study on A Transformer-Based Matching Network," accepted and to appear in Proc. IEEE International Microwave Symposium (IMS), Jun. 2021. 

  • Jan 2021

    Sasi and David are selected as the winners of Analog Devices Inc. Outstanding Student Designer Award in 2021. Congratulations, Sasi and David!

  • Dec 2020

    Another fantastic PhD graduate from our GEMS lab completed his defense today! Dr. Tso-Wei Li's PhD thesis is "Key Front-End Circuits In Millimeter-Wave Silicon-Based Wireless Transmitters For Phased-Array Applications​."

    Tso-Wei, Big Congratulations on all of your achievements! You are the 8th PhD graduate from our GEMS group. We are very proud of you!

    Many thanks to the committee members, Professors John Cressler, Gee-Kung Chang, Farrokh Ayazi, and Hossein Miri Lavasani, and all the attendees of Tso-Wei's defense exam.

  • Dec 2020

    Amr's paper entitled "A 43-97 GHz Mixer-First Front-End with Quadrature Input Matching and On-chip Image Rejection" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Amr Ahmed, Min-Yu Huang, David Munzer, and Hua Wang. Congratulations Amr and team!

  • Nov 2020

    Our collaboration paper with Professor Gee-Kung Chang's team "A Bi-Directional Multi-Band, Multi-Beam MM-Wave Beamformer for 5G Fiber Wireless Access Networks" has been accepted for publication at IEEE/OSA Journal of Lightwave Technology (JLT). This paper is authored by Min-Yu Huang, You-Wei Chen, Run-Kai Shiu, Hua Wang, and Gee-Kung Chang. Congratulations Min-Yu and team!

  • Nov 2020

    BIG congratulations to Doohwan Jung who successfully defended his PhD!

    Doohwan is the 7th PhD graduates from our GEMS group. His PhD thesis is entitled "CMOS Multi-Modal Integrated Systems for Future Bioelectronics and Biosensors." Great job, Doohwan!

    Many thanks to the committee members, Dr. Oliver Brand, Dr. Muhannad Bakir, Dr. Wilbur Lam, Dr. Omer Inan, and Dr. Arjang Hassibi, and all the attendees of Doohwan's defense exam.

  • Nov 2020

    Sensen's paper entitled "A Mm-Wave Current-Mode Inverse Outphasing Transmitter Front-End: A Circuit Duality of Conventional Voltage-Mode Outphasing" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Sense Li, Min-Yu Huang, Doohwan Jung, Tzu-Yuan Huang, and Hua Wang. Congratulations Sensen and team!

  • Oct 2020

    A new member of GEMS group!

    We are very excited to have Dr. Jeongsoo Park join our GEMS group as a post-doc scholar starting from Oct 2020. He received his B.S. and M.Sc. both in Electronic Engineering from Kwangwoon University, Seoul, South Korea.

    Dr. Park has extensive experience in design, packaging, and testing of RF/mm-Wave circuits and systems. He will be a great addition to our GEMS group.

    Welcome aboard, Dr. Park!

  • Oct 2020

    Tzu-Yuan Huang's paper entitled "A 26-60GHz Continuous Marchand Doherty Linear Power Amplifier for Over-An-Octave Back-Off Efficiency Enhancement" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2021. The authors are Tzu-Yuan Huang, Naga Sasikanth Mannem, Doohwan Jung, Hua Wang.

    Congratulations Tzu-Yuan and the team!

  • Oct 2020

    Edgar Garay's paper entitled "A Low-Supply-Voltage Mm-Wave Power Amplifier for 5G Communication Using a Dual-Drive Topology Exhibiting a Maximum PAE of 50% and Maximum DE of 60% at 30GHz" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2021.

    Congratulations Edgar!

  • Oct 2020

    A new member of GEMS group!

    We are very excited to have Dr. Hossein Jalili join our GEMS group as a post-doc scholar starting from Oct 2020. He received his B.S. and M.Sc. both in Electrical Engineering from Sharif University of Technology, Iran, and his Ph.D. degree in Electrical Engineering from the University of California, Davis (Professor Omeed Momeni's group).

    Dr. Jalili has extensive experience in THz circuits and systems. He has won many prestigeous awards and academic recognitions, including the University of California Davis 2020 Allen G. Marr distinguished dissertation award and 2019 Anil Jain Memorial Prize for best PhD student dissertation in the ECE department at UC Davis.

    Welcome aboard, Dr. Jalili!

  • Sep 2020

    Sensen's paper entitled "Multi-Feed Antenna and Electronics Co-Design: An E-Band Antenna-LNA Front-End with On-Antenna Noise-Canceling and Gm-Boosting" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Sense Li, Taiyun Chi, and Hua Wang. Congratulations Sensen and team!

  • Sep 2020

    Sasi's paper entitled "A Reconfigurable Hybrid Series/Parallel Doherty Power Amplifier with Antenna VSWR Resilient Performance for MIMO Arrays" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Naga Sasikanth Mannem, Ming-Yu Huang, Tzu-Yuan Huang, and H. Wang. Congratulations Sasi and team!

  • Sep 2020

    Tso-Wei's paper entitled "A 2-24 GHz 360° Full-Span Differential Vector Modulator Phase Rotator with Transformer-Based Poly-Phase Quadrature Network" has been accepted for publication at IEEE Transactions on Very Large Scale Integrated (TVLSI) Systems. This paper is authored by Tso-Wei Li, Jongseok Park, and Hua Wang.

    Congratulations Tso-Wei and team!

  • Aug 2020

    Our collaboration paper with Prof. Justin Romberg on using Reinforcement Learning (RL) algorithms for Doherty Power Amplifier control and optimization has been accepted for publication at the IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I). The paper is entitled "In-Field Performance Optimization for Mm-Wave
    Mixed-Signal Doherty Power Amplifiers: A Bandit Approach" and is co-authored by Shaojie Xu, Fei Wang, Hua Wang, and Justin Romberg.

    Congratulations to our collaborative team!

  • Jul 2020

    Dr. Wang has been awarded the 2020 Qualcomm Faculty Award for his technical contributions to wideband energy-efficient mm-Wave circuits and novel wireless transceiver system architectures that have impacted the research and development in the commercial sector of the semiconductor industry. 

  • May 2020

    Dr. Wang has been awarded a prestigious Director’s Fellowship from the Defense Advanced Research Projects Agency (DARPA). Dr. Wang is the first faculty member at Georgia Tech to receive this fellowship award from DARPA. To learn more, visit GT ECE News.

    Dr. Wang is selected for his Director’s Fellowship by the DARPA Microsystems Technology Office (MTO) that develops next-generation intelligent microelectronics systems and components. His research focuses on inventing fundamental circuit topologies and system architectures that will lead to a new class of active load modulation power amplifiers with an unprecedented combination of bandwidth, energy efficiency, output power, and linearity. These fundamental amplifier topologies will be agnostic to process technologies and will eventually enable true “common-module front-ends” for reconfigurable transmitters and MIMO systems with mm-Wave to THz “full-spectrum access” for wireless communication, radar, imaging, and spectrum sensing applications. 

  • Mar 2020

    Our collaboration review paper on Mm-Wave Power Amplifiers has been accepted for publication at the IEEE Transactions on Microwave Theory and Techinques (T-MTT). The paper is entitled "A Review of Technologies and Design Techniques of Millimeter-Wave Power Amplifiers" and is co-authored with Professor Vittorio Camarchia and Dr. Anna Piacibello at Politecnico di Torino Italy, Professor Roberto Quaglia at Cardiff University UK, Professor Anh-Vu Pham at UC Davis USA, and Dr. Duy P. Nguyen at MACOM USA.

    Congratulations to our wonderful collaboration team!

  • Feb 2020

    We made our fourth web release of Power Amplifiers Performance Survey 2000-present!

    This version-4 web release includes PAs/transmitters from 500 MHz to 1.5 THz in Bulk/SOI CMOS, SiGe, LDMOS, InP, GaN, GaAs technologies. The dataset contains total 3207 data points with over 1200 data points for CMOS, SiGe PAs and over 1500 data points for GaN, GaAs, InP PAs.

    We have also added sub-THz/THz power/signal generation circuits from 150 GHz to 1.5 THz, including PAs, fundamenal/harmonic oscillators,and frequency multipliers, to support the emerging research on beyond-5G/6G applications.

    We sincerely thank many of our friends and colleagues for their helpful suggestions and insightful discussions on our PA survey.

    Please check out our website to download the version-4 data set.

  • Feb 2020

    Our paper entitled "Residual Network Based Direct Synthesis of EM Structures: A Study on One-to-One Transformers" is accepted for publication at the IEEE RFIC conference 2020.

    Congratulations David and team!

  • Feb 2020

    Baris Volkan Gurses is selected to receive an IEEE MTT-S Undergraduate/Pre-Graduate Scholarship. This is the most prestigious award for undergraduate researchers in the IEEE Microwave Society. Only 2-5 awardees will be selected internationally every year.

    As modern wireless communications continuously increase in speed and performance, operating at higher frequencies has become a clear trend for all wireless devices and systems. Simultaneously, multi-band high-frequency communications and advancements in adaptive radios give rise to the implementation of frequency reconfigurability in integrated devices. Combining the benefits of both high-frequency operation and frequency reconfigurability, Volkan is working on a design methodology to devise frequency-reconfigurable couplers in the mm-wave/sub-THz (>100 GHz) range. This project proves itself to be the first implementation of reconfigurable couplers in silicon at these frequencies. The proposed methodology will be a crucial element for the development of future adaptive wireless systems operating at sub-THz frequencies to address beyond-5G/6G challenges.

    Congratulations Volkan!

  • Jan 2020

    Amr's paper entitled "A Mixer-First Extremely Wideband 43-97 GHz RX Frontend with Broadband Quadrature Input Matching and Current Mode Transformer-Based Image Rejection for Massive MIMO Applications" is accepted for publication at the IEEE CICC conference 2020.

    Congratulations Amr!

  • Jan 2020

    Sanghoon, Tzu-Yuan, and Adam are selected as the winners of Analog Devices Inc. Outstanding Student Designer Award in 2020. Congratulations Sanghoon, Tzu-Yuan, and Adam!

  • Jan 2020

    Gregory Villiam Junek has been selected as a GEM fellow based on his academic record, prior awards, and current Ph.D. research. He is also selected as a Lawrence Livermore National Laboratory (LLNL) Scholar.

    Greg's work takes place at the interface of biology, engineering, computer science, and physical sciences to address challenges in healthcare, precision medicine, and fundamental biological sciences. Greg’s research aims to create seamless multi-modal bidirectional bio-electronic interfaces by combining the abilities of modern nanotechnology fabrication processes with the unprecedented computational capabilities and versatile sensing/actuation modalities of CMOS electronics.

    Congratulations on this great achievement, Greg!

  • Jan 2020

    Fei is selected to receive the IEEE Solid-State Circuits Society (SSCS) Predoctoral Achievement Award for 2019-2020 for his PhD research on “mm-Wave broadband linear active load modulation power amplifier architectures with deep PBO efficiency enhancement”, which will radically push the modulation performance of mm-Wave power amplifiers beyond the state of the art to address beyond-5G and next-generation wireless communication applications. 

    This is the highest honor for PhD students from the IEEE SSCS society. Congratulations, Fei!

  • Jan 2020

    Our paper entitled "A Coupler-Based Differential Mm-Wave Doherty Power Amplifier with Impedance Inverting and Scaling Baluns" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC).

  • Dec 2019

    Our collaboration paper with Professor Gee-Kung Chang's group entitled "Wide FoV Autonomous Beamformer Supporting Multiple Beams and Multi-Band Operation for 5G Mobile Fronthaul" has been accepted for publication at the 2020 Optical Fiber Communication Conference (OFC 2020). This paper is authored by Min-Yu Huang, You-Wei Chen, Run-Kai Shiu, Hua Wang, and Gee-Kung Chang. Congratulations Min-Yu and team!

  • Dec 2019

    Min-Yu's paper entitled "A 24.5-43.5 GHz Ultra-Compact CMOS Receiver Front-End with Calibration-Free Instantaneous Full-Band Image Rejection for Multiband 5G Massive MIMO" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Min-Yu Huang, Taiyun Chi, Sensen Li, Tzu-Yuan Huang, and Hua Wang. Congratulations Min-Yu and team!

  • Nov 2019

    Our collaboration paper with Professor Gee-Kung Chang's team "A Full Field-of-View Self-Steering Beamformer for 5G Mm-Wave Fiber-Wireless Mobile Fronthaul" has been accepted for publication at IEEE/OSA Journal of Lightwave Technology (JLT). This paper is authored by Min-Yu Huang, You-Wei Chen, Peng-Chun Peng, Hua Wang, and Gee-Kung Chang. Congratulations Min-Yu and team!

  • Nov 2019

    Doohwan's paper entitled "A CMOS 1.2V Hybrid Current-/Voltage-Mode Three-Way Digital Doherty PA with Built-In Phase Nonlinearity Compensation" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Doohwan Jung, Sensen Li, Jongseok Park, Tzu-Yuan Huang, Huan Zhao, and Hua Wang. Congratulations Doohwan and team!

  • Nov 2019

    Min-Yu's paper entitled "A Mm-Wave Wideband MIMO RX with Instinctual Array-Based Blocker/Signal Management for Ultra-Low-Latency Communication," has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Min-Yu!

  • Nov 2019

    Fei's paper entitled "A Super-Resolution Mixed-Signal Doherty Power Amplifier for Simultaneous Linearity and Efficiency Enhancement," has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Fei and team!

  • Oct 2019

    Six papers from GEMS group are accepted for publication at the IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations to our GEMS group on this achievement!

  • Oct 2019

    Doohwan and Sagar's paper entitled "A CMOS Multi-Modality In-Pixel Electrochemical and Impedance Cellular Sensing Array for Massively Paralleled Synthetic Exoelectrogen Characterization" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations Doohwan and Sagar!

  • Oct 2019

    Sensen's paper entitled "An E-Band High-Linearity Antenna-LNA Frontend with 4.8dB NF and 2.2dBm IIP3 Exploiting Multi-Feed On-Antenna Noise-Canceling and Gm-Boosting" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations Sensen!

  • Oct 2019

    Sensen's paper entitled "A 28GHz Current-Mode Inverse-Outphasing Transmitter Achieving 40%/31% PA Efficiency at Psat/6dB PBO and Supporting 15Gbit/s 64QAM for 5G Communication" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations Sensen!

  • Oct 2019

    Fei's paper entitled "A 24-30GHz Watt-Level Broadband Linear Doherty Power Amplifier with Multi-Primary Distributed-Active-Transformer Power-Combining Supporting 5G NR FR2 64QAM with >19 dBm Average Pout and
    >19% Average PAE" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations Fei!

  • Oct 2019

    Fei's paper entitled "An Instantaneously Broadband Ultra-Compact Highly Linear PA with Compensated Distributed Balun Output Network Achieving >17.8dBm P1dB and >36.6% PAEP1dB over 24-40GHz and Continuously Supporting 64-/256-QAM 5G NR Signals over 24-42GHz" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations Fei!

  • Oct 2019

    Sasi's paper entitled "A Reconfigurable Series/Parallel Quadrature Coupler Doherty PA in CMOS-SOI with VSWR Resilient Linearity and Back-Off PAE for 5G MIMO Arrays" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2020. Congratulations Sasi!

  • Sep 2019

    Dr. Elham Erfani joins GEMS lab as a postdoctoral scholar. Dr. Erfani completed her PhD research in University of Quebec, Montreal, Canada (PhD Advisor: Prof. Serioja Tatu). She is an expert on high-frequency antennas and antenna arrays.

    Welcome aboard, Elham!

  • Jul 2019

    We made our third web release of Power Amplifiers Performance Survey 2000-present!

    This version-3 web release includes reported PAs/transmitters from 500MHz to 300GHz in Bulk/SOI CMOS, SiGe, LDMOS, InP, GaN, GaAs technologies. The dataset contains total 2749 data points with over 1105 data points for CMOS, SiGe PAs and 1482 data points for GaN, GaAs, InP PAs.

    We have added power/signal generation circuits, including PAs, fundamenal/ harmonic oscillators,and frequency multipliers, from 150GHz to 300GHz in order to support the emerging beyond-5G/6G research.

    We sincerely thank many of our friends and colleagues for their helpful suggestions and insightful discussions on our PA survey.

    Please check out our website to download the version-3 data set.

  • Jun 2019

    Dr. Kirti Dhwaj joins GEMS lab as a postdoctoral scholar. Dr. Dhwaj received his B. Tech from B.Tech, IIIT Allahabad, India, and his MS and PhD both from University of California, Los Angeles (UCLA). Dr. Dhwaj completed his PhD research in UCLA Microwave Electronics Laboratory, headed by Professor Tatsuo Itoh. He is an expert on planar filters, antennas, antenna arrays, and RF/mm-Wave frontends.

    Welcome aboard, Kirti!

  • Apr 2019

    Doohwan's paper entitled "A 1.2V Single Supply Hybrid Current-/Voltage-Mode Three-Way Digital Doherty PA with Built-In Large-Signal Phase Compensation Achieving Less-Than 5° AM-PM" won the 2019 IEEE CICC Best Student Paper Award!

    Congratulations Doohwan and team!

  • Mar 2019

    David has been awarded the 2019 National Defense Science and Engineering Graduate (NDSEG) Fellowship. This highly prestigious and competitive fellowship is awarded to only top 60-70 students from over 3600 applications (<1.9%) nationwide in recognition of their academic excellence and Science, Technology, Engineering and Math (STEM) achievements.

    Congratulations David!

  • Mar 2019

    Doohwan's paper entitled "A 21952-Pixel Multi-Modal CMOS Cellular Sensor Array with 1568-Pixel Parallel Recording and 4-Point Impedance Sensing" has been accepted for publication at the 2019 VLSI Symposium on Circuits to be held in Kyoto, Japan! The co-authors are Jong Seok Park, Gregory V Junek, Sandra I. Grijalva, Sagar R Kumashi, Adam Wang, Sensen Li, Hee Cheol Cho, Hua Wang.

    This is the world's first multi-modal CMOS joint sensor/actuator array with massively parelleled multi-modal reconfigurable sensor/actuator pixels, large number of concurrent channels, and true 4-point high-precision cellular and tissue-level impedance measurements for real-time holistic cell/tissue characterizations. This paper is selected to be part of the “Technical Tip Sheet” by the VLSI Symposium committee to highlight the technical trends and exemplary papers of the conference.

    Congratulations Doohwan and team!

  • Mar 2019

    Sensen's paper entitled "A Buffer-Less Wideband Frequency Doubler in 45nm CMOS-SOI with Transistor Multi-Port Waveform Shaping Achieving 25% Drain Efficiency and 46-89GHz Instantaneous Bandwidth" has been accepted for publication at IEEE Solid-State Circuits Letter! The co-authors are Taiyun Chi, Tzu-Yuan Huang, Doohwan Jung, Min-Yu Huang, and Hua Wang.

    Congratulations Sensen and team!

  • Mar 2019

    Min-Yu Huang is selected as a Marconi Society Paul Baran Young Scholar to recognize his academic achievements and leadership in the field of communications and information science.

    The Marconi Society Paul Baran Young Scholar Award recognizes young scientists and engineers who are under 28 years old and have demonstrated exceptional capabilities and potentials. The Paul Baran Young Scholars are selected worldwide with only three awardees in 2019. It is considered as one of the most prestigeous awards for your professionals in the related technical fields that touch every part of our connected world, from fiber optics and quantum communications to machine learning, localization, 5G and information theory.

    Congratulations Min-Yu on this great achievement!

     

  • Mar 2019

    Our paper entitled "An Ultra-Wideband Edge-Fed Octagonal Four-Arm Archimedean Spiral Antenna" has been accepted for publication at 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI). This paper is authored by Sanghoon Lee, Michael E.D. Smith, Sensen Li, Hua Wang. Congratulations team!

  • Feb 2019

    Dr. Wang is invited to give a short course on "5G MIMO beamforming circuits/systems" in the "Advanced 5G circuits, systems and applications" program at the 2019 VLSI Symposium on Circuits to be held in Kyoto, Japan.

  • Feb 2019

    Min-Yu's paper entitled "A 24.5-43.5GHz Compact RX with Calibration-Free 32-56dB Full-Frequency Instantaneously Wideband Image Rejection Supporting Multi-Gb/s 64-QAM/256-QAM for Multi-Band 5G Massive MIMO" has been accepted for publication at 2019 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)! The co-authors are Taiyun Chi, Tzu-Yuan Huang, Sensen Li, Fei Wang, and Hua Wang.

    This paper has also been selected as a 2019 IEEE RFIC Best Student Paper Award Finalist!

    Congratulations Min-Yu and team!

  • Feb 2019

    Huy Thong's paper entitled "A Coupler-Based Differential Doherty Power Amplifier with Built-In Baluns for High Mm-Wave Linear-Yet-Efficient Gbit/s Amplifications" has been accepted for publication at 2019 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)!

    This paper has also been selected as a 2019 IEEE RFIC Best Student Paper Award Finalist!

    Congratulations Huy Thong!

  • Feb 2019

    Doohwan's paper entitled "A 1.2V Single Supply Hybrid Current-/Voltage-Mode Three-Way Digital Doherty PA with Built-In Large-Signal Phase Compensation Achieving Less-Than 5° AM-PM" has been accepted for publication at 2019 IEEE Custom Integrated Circuits Conference (CICC)! The co-authors are Jongseok Park, Sensen Li, Tzu-Yuan Huang, Huan Zhao, and Hua Wang.

    This paper has also been selected as a 2019 IEEE CICC Best Student Paper Award Finalist!

    Congratulations Doohwan and team!

  • Feb 2019

    Two papers from GEMS group have been accepted for publication at the IEEE Transactions on Microwave Theory and Techinques (T-MTT) for the 5G Hardware and System Technologies Special Issue.

    Min-Yu is the leading author of our paper entitled "A Full-FoV Autonomous Hybrid Beamformer Array with Unknown Blockers Rejection and Signals Tracking for Low-Latency 5G Mm-Wave Links." Co-authors on this paper are Taiyun Chi, Fei Wang, Tso-Wei Li, and Hua Wang.

    Tso-Wei is the leading author of our paper entitled "Millimeter-Wave Continuous-Mode Power Amplifier for 5G MIMO Applications."

    Congratulations Min-Yu, Tso-Wei, and team!

  • Feb 2019

    Our paper entitled "A 28/37/39-GHz Linear Doherty Power Amplifier in Silicon for 5G Applications" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). This paper is authored by Song Hu, Fei Wang, and Hua Wang. Congratulations team!

  • Feb 2019

    Sensen is selected to receive the 2018 IEEE Microwave Theory and Techniques Society (MTT-S) Graduate Fellowship. This award is the highest honor that a Ph.D. student can receive from the IEEE MTT society.

    Congratulations Sensen!

  • Feb 2019

    Our collaboration paper entitled "A Concurrent Dual-Beam Phased-Array Doppler Radar Using MIMO Beamforming Techniques for Short-Range Vital-Signs Monitoring" is accepted for publication at IEEE Transactions on Antennas and Propagation (T-AP). This collaboration project is led by Professor Negar Tavassolian at Stevens Institute of Technology.

    Congratulations team!

  • Feb 2019

    Three papers from GEMS group are accepted for publication at the IEEE International Microwave Symposium (IMS) 2019. Congratulations GEMS team!

  • Jan 2019

    Our paper entitled "A 28GHz Flip-Chip Packaged Chireix Transmitter with On-Antenna Outphasing Active Load Modulation" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC) special issue for RFIC 2018. This paper is authored by Sensen Li, Taiyun Chi, Jongseok Park, Huy Thong Nguyen, and Hua Wang. Congratulations team!

  • Jan 2019

    Our paper entitled "Electrode-Electrolyte Interface Impedance Characterization of Ultra-Miniaturized Microelectrode Arrays over Materials and Geometries for Sub-Cellular and Cellular Sensing and Stimulation" has been accepted for publication at IEEE Transactions on NanoBioscience (TNB) EMBS special issue. This paper is authored by Adam Wang, Doohwan Jung, Jongseok Park, Gregory Villiam Junek, and Hua Wang. Congratulations team!

  • Jan 2019

    Doohwan's paper entitled "A CMOS Highly Linear Doherty Power Amplifier with Multigated Transistors" has been accepted for publication at IEEE Transactions on Microwave Theory and Techinques (T-MTT). Congratulations Doohwan!

  • Jan 2019

    Huy Thong and Edgar are selected as the winners of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2019. Congratulations Huy Thong and Edgar!

  • Dec 2018

    Min-Yu is selected to receive the IEEE Solid-State Circuits Society (SSCS) Predoctoral Achievement Award for 2018-2019 for his research on "Ultra-low latency, autonomous, and full field-of-view (FoV) beam-forming architecture for mm-Wave wideband MIMO transceiver systems."

    This is the highest honor for PhD students from the IEEE SSCS society. Congratulations Min-Yu!

  • Dec 2018

    Fei's paper entitled "A Noise Circulating Oscillator" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC) special issue for CICC 2018. Congratulations Fei!

  • Nov 2018

    Dr. Wang gave an IEEE SSCS Distinguished Lecture talk at the Dallas chapter. This DL event was co-organized by the IEEE SSCS and MTT societies. Thank you Dr. Huawen Jin, Dr. Rajanish Pandey, and Dr. Oren Eliezer for hosting me!

  • Oct 2018

    Our research on multi-modal cell-electronics interface and hybrid cell-electronics (biotic/abiotic systems) are featured on the recenly released SRC SSB (Semiconductor Synthetic Biology) roadmap.

    In our ISSCC 2015 paper and later on TBCAS 2015 journal paper as well as VLSI 2016, CICC 2017, TBCAS 2018, and Lab on a Chip 2018 papers, we originally proposed and demonstrated the concept of multi-modal cellular interfacing using highly integrated CMOS electronic platforms, achieving single-cell resolution, tissue-level field-of-view (FoV), joint sensing/actuation, and real-time multi-modal interfacing between living cells/tissues and electronics.

    We are glad to see that it has been recognized by the scientific community that multi-modal interfacing to cells is essential to capture the complex cell physiological changes, modulate cellular functionalities and enable holistic characterization and understanding of cells.


  • Oct 2018

    Recent news release on Georgia Tech News Center on our multi-modal CMOS cellular interfacing arrays for drug screening and new drug development. Please check out "New Chip Measures Multiple Cellular Responses to Speed Drug Discovery."

    This article is featured at Georgia Tech school frontpage as well as Georgia Tech Research Horizon and School of ECE website.

  • Oct 2018

    We made our second web release of Power Amplifiers Performance Survey 2000-present!

    This version-2 web release includes reported PAs from 500MHz to 140GHz in Bulk/SOI CMOS, SiGe, LDMOS, InP, GaN, and GaAs technologies. The dataset contains total ~2300 data points with over 1010 data points for CMOS/SiGe PAs and over 660 data points for GaN/InP PAs.

    We sincerely thank many of our friends and colleagues for their helpful suggestions and insightful discussions during the development of our PA survey.

    Please check out our website to download the data set.

  • Oct 2018

    Our paper entitled "A Linear High-Efficiency Millimeter-Wave CMOS Doherty Radiator Leveraging Multi-Feed On-Antenna Active Load-Modulation" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC) special issue for ISSCC 2018. This paper is authored by Huy Thong Nguyen, Taiyun Chi, Sensen Li, and Hua Wang. Congratulations team!

  • Oct 2018

    Our paper entitled "A Millimeter-Wave Polarization-Division-Duplex Transceiver Front-End with An On-Chip Multifeed Self-Interference-Canceling Antenna and An All-Passive Reconfigurable Canceler" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC) special issue for ISSCC 2018. This paper is authored by Taiyun Chi, Jong Seok Park, Sensen Li, and Hua Wang. Congratulations team!

  • Oct 2018

    Fei's paper entitled "A Highly Linear Super-Resolution Mixed-Signal Doherty Power Amplifier for High-Efficiency Multi-Gbit/s Mm-Wave 5G Communications" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2019. Congratulations Fei!

  • Oct 2018

    Min-Yu's paper entitled "A 27-41GHz MIMO Receiver with N-Input-N-Output Using Scalable Cascadable Autonomous Array-Based High-Order Spatial Filters for Instinctual Full-FoV Multi-Blocker/Signal Management" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2019. Congratulations Min-Yu!

  • Oct 2018

    Huy Thong's paper entitled "A 60GHz CMOS Power Amplifier with Cascaded Asymmetric Distributed-Active-Transformer Achieving 1 Watt Peak Output Power with 20.8% PAE and Supporting 2Gsym/s 64-QAM Modulation" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2019. Congratulations Huy Thong!

  • Oct 2018

    Huy Thong's paper entitled "A Mm-Wave 3-Way Linear Doherty Radiator with Multi-Antenna-Electronics Coupling and On-Antenna Current-Scaling Series Combiner for Deep Power Back-Off Efficiency Enhancement" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2019. Congratulations Huy Thong!

  • Sep 2018

    Our paper entitled "Electrode-Electrolyte Interface Impedance Characterization of Ultra-Miniaturized Microelectrode Arrays over Materials and Geometries for Sub-Cellular and Cellular Sensing and Stimulation" is accepted for publication at IEEE EMBS Micro and Nanoengineering in Medicine Conference (MNM) 2018. This paper is authored by Adam Wang, Doohwan Jung, Jongseok Park, Gregory Junek, and Hua Wang. Congratulations team!

  • July 2018

    Our collaboration paper entitled "W-Band Micromachined Antipodal Vivaldi Antenna Using SIW and CPW Structures" is accepted for publication at IEEE Transactions on Antennas and Propagation (T-AP). This collaboration project is led by Professor Negar Tavassolian at Stevens Institute of Technology.

    Congratulations team!

  • July 2018

    Our collaboration paper entitled "Interdigitated microelectronic bandage augments hemostasis and clot formation at low applied voltage in vitro and in vivo" is accepted for publication at the Lab on a Chip journal by the Royal Society of Chemistry. This research is based on our collaboration with Professor Wilbur Lam's Lab at Georgia Tech and Emory University and Professor Ashley Brown's Advanced Wound Healing Lab at NC State University and UNC Chapel Hill.

    Congratulations team!

  • June 2018

    We made our first web release of Power Amplifiers Performance Survey 2000-present!

    This first release summarizes published PA deisgns in peer-reviewed publications from 20GHz to 140GHz in bulk CMOS, CMOS SOI, SiGe, InP, GaN technologies. Future release will add (1) PA designs in product datasheets, (2) PAs from 500MHz to 20GHz, and (3) PAs in GaAs technology.

    We sincerely thank many of our friends and colleagues for their helpful suggestions and insightful discussions during the development of our PA survey.

    Please check out our website to download the data set.

  • June 2018

    Our paper entitled "Multi-parametric cell profiling with CMOS quad-modality cellular interfacing array for label-free fully automated drug screening" is accepted for publication at the Lab on a Chip journal by the Royal Society of Chemistry. Jongseok Park is the leading author of this paper. This research is based on our collaboration with Professor Hee Cheol Cho's Heart Regeneration Lab at Georgia Tech and Emory University.

    Congratulations Jongseok and team!

  • June 2018

    Sensen and the team's RFIC paper entitled "A 28GHz Packaged Chireix Transmitter with Direct On-Antenna Outphasing Load Modulation Achieving 56%/38% PA Efficiency at Peak/6dB Back-Off Output Power" won the IEEE RFIC 2018 Best Student Paper Award (2nd Place)!

    Congratulations to Sensen, Taiyun, Tzu-Yuan, Huy Thong on your excellent work!

    In this paper, we proposed and demonstrated a packaged 28GHz Chireix outphasing transmitter (TX) for 5G wireless communication application. The TX utilizes an on-package dual-feed loop antenna cooperating with two CMOS TX chips to realize high-efficiency direct on-antenna outphasing active load modulation, setting a new energy efficiency record for 28GHz 5G wireless transmitters.

    Photograph at 2018 IEEE RFIC Student Best Paper Award Ceremony: (From left to right) Sensen Li (1st Author), Dr. Walid Ali-Ahmad (Facebook, Conference General Chair of 2018 IEEE RFIC), and Professor Hua Wang

  • June 2018

    Our collaborative team led by Fei Wang and Kyle Xu won the Qualcomm Innovation Fellowship (US) 2018! This is a highly prestigeous and competitive honor, and we are one of the 8 winners selected from 174 applications (4.6%).

    Congratulations Fei and Kyle!

  • May 2018

    Edgar has been awarded the inaugural Graduate Student Retaining Inspirational Students in Technology and Engineering (RISE) scholarship. RISE scholars are selected students who display persistence within their engineering program, leadership and service. These students give back to Georgia Tech by serving as mentors and/or tutors to other Georgia Tech students and prospective students.

    Congratulations Edgar!

  • Apr 2018

    Sanghoon has been awarded the 2018 National Defense Science and Engineering Graduate (NDSEG) Fellowship. This highly prestigious and competitive fellowship is awarded to only 69 winners from over 3600 applications nationwide this year in recognition of their academic excellence and Science, Technology, Engineering and Math (STEM) achievements.  

    Congratulations Sanghoon!

  • Mar 2018

    Dr. Wang will be awarded the DARPA Young Faculty Award (YFA) class of 2018.

    We will explore the fundamental research on a completely new class of extremely-wideband-yet-efficient mm-Wave power amplifiers over 30 to 100GHz to achieve an unprecedented combination of bandwidth, energy efficiency, and output power. Such amplifier technologies will eventually enable true "common-module front-ends" for reconfigurable transmitters and MIMO systems with "full-spectrum access" and digital beam-forming for wireless communication, radar, imaging, and sensing applications.

  • Mar 2018

    Taiyun is selected as a recipient of the 2018 Sigma Xi Best Ph.D. Award of the Georgia Tech Chapter! This is a highly prestigious institute-level award and is considered as the "Best Ph.D. Thesis Award" at Georgia Tech. Up-to 10 outstanding Ph.D theses will be selected annually among all the schools and departments at Geogia Tech.

    Congratulations Taiyun!

  • Feb 2018

    Sensen wins the 2018 IEEE Antennas and Propagation Society (APS) Doctoral Research Grant. This is a highly prestigious and very competitive honor for Ph.D. students in the IEEE Antennas and Propagation Society to encourage them to pursue a career in the area of electromagnetics.

    Sensen's proposed research focuses on innovative multi-feed antennas and their co-operations with electronics to achieve mm-Wave massive MIMO systems with unprecedented front-end performance. The award announcement will be featured in the Education Column of the upcoming IEEE Antennas and Propagation Magazine.

    Congratulations Sensen!

  • Feb 2018

    Dr. Wang is promoted to the rank of associate professor with tenure.

  • Feb 2018

    Sensen's paper entitled "A 28GHz Packaged Chireix Transmitter with Direct On-Antenna Outphasing Load Modulation Achieving 56%/38% PA Efficiency at Peak/6dB Back-Off Output Power" has been accepted for publication at 2018 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)! Other student co-authors are Taiyun Chi, Tzu-Yuan Huang, and Huy Thong Nguyen.

    This paper has also been selected as a 2018 IEEE RFIC Best Student Paper Award Finalist!

    Congratulations Sensen and team!

  • Feb 2018

    Tso-Wei's paper entitled "A Continuous-Mode 23.5-41GHz Hybrid Class-F/F-1 Power Amplifier with 46% Peak PAE for 5G Massive MIMO Applications" has been accepted for publication at 2018 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)!

    Congratulations Tso-Wei!

  • Feb 2018

    Dr. Wang is invited to serve as a Distinguished Lecturer for the IEEE Solid-State Circuits Society (SSCS) for the term of 2018/2019.

  • Feb 2018

    Doohwan and Sensen are selected as the winners of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2018. Congratulations Doohwan and Sensen!

  • Jan 2018

    Min-Yu is selected to receive the 2018 IEEE Microwave Theory and Techniques Society (MTT-S) Graduate Fellowship. This award is the highest honor that a Ph.D. student can receive from the IEEE MTT society.

    Congratulations Min-Yu!

  • Jan 2018

    Four papers from GEMS group are accepted for publication at the IEEE International Microwave Symposium (IMS) 2018. Congratulations to our GEMS group on this achievement!

  • Jan 2018

    Fei's paper entitled "A Noise Circulating Cross-Coupled VCO with a 195.6dBc/Hz FoM and 50kHz 1/f3 Noise Corner" is accepted for publication at the IEEE Custom Integrated Circuits Conference (CICC) 2018.

    This paper has also been selected as a 2018 IEEE CICC Best Student Paper Award Finalist!

    Congratulations Fei!

  • Jan 2018

    Two papers from GEMS group and our collaborators are accepted for publication at the IEEE Custom Integrated Circuits Conference (CICC) 2018. Congratulations to our teams on this achievement!

  • Dec 2017

    Our collaboration paper on a Reconfigurable Vernier Time-to-Digital Converter with Dr. Foster Dai's group at Auburn University has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). The paper is entitled "A Reconfigurable Vernier Time-to-Digital Converter with 2-D Spiral Comparator Array and 2nd-Order ΔΣ Linearization."

    Congratulations team!

  • Dec 2017

    Taiyun is selected to receive the IEEE Solid-State Circuits Society (SSCS) Predoctoral Achievement Award for 2017-2018 for the research on "mm-wave and THz signal generation and detection."

    This is the highest honor for PhD students from the IEEE SSCS society. Congratulations Taiyun!

  • Oct 2017

    Our paper entitled "A 23-30GHz Hybrid Beam-Forming MIMO Receiver Array with Closed-Loop Multi-Stage Front-End Beam-Formers for Full-FoV Dynamic and Autonomous Unknown Signal Tracking and Blocker Rejection" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2018. This paper is authored by Min-Yu Huang, Taiyun Chi, Fei Wang, Tso-Wei Li, and Hua Wang. Congratulations team!

  • Oct 2017

    Our paper entitled "A 62-68GHz linear 6Gb/s 64-QAM CMOS Doherty radiator with 27.5%/20.1% PAE at peak/6dB back-off output power leveraging high-efficiency multi-port antenna-based active load modulation" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2018. This paper is authored by Huy Thong Nguyen, Taiyun Chi, Sensen Li, and Hua Wang. Congratulations team!

  • Oct 2017

    Our paper entitled "A 64GHz Full-Duplex Transceiver Front-End with An On-Chip Multi-Port Self-Interference-Cancelling Antenna and An All-Passive Canceler Supporting 4Gb/s Modulation in One Antenna Footprint" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2018. This paper is authored by Taiyun Chi, Jongseok Park, Sensen Li, and Hua Wang. Congratulations team!

  • Oct 2017

    Our paper entitled "A Continuous-Mode Harmonically-Tuned 19-29.5GHz Ultra-Linear PA Supporting 18Gbit/s at 18.4%
    Modulation PAE and 43.5% Peak PAE" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2018. This paper is authored by Tso-Wei Li, Min-Yu Huang, and Hua Wang. Congratulations team!

  • Sep 2017

    Jongseok's paper entitled "A CMOS Wideband Current-Mode Digital Polar Power Amplifier with Built-In AM-PM Distortion Self-Compensation" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC).

    Congratulations Jongseok!

  • Jun 2017

    Mr. Kang Yang, an antenna design expert and senior staff engineer from Speed Wireless Technology, joins GEMS lab as a visitng scholar. Welcome aboard Mr. Yang!

  • Sep 2017

    Jongseok, Moez, Sensen, and Taiyun's paper entitled "1024-Pixel CMOS Multi-Modality Joint Cellular Sensor/Stimulator Array for Real-Time Holistic Cellular Characterization and Cell-Based Drug Screening" has been accepted for publication at IEEE Transactions on Biomedical Circuits and Systems (TBCAS).

    This paper presents a fully integrated CMOS multi-modality joint sensor/stimulator array with 1024 pixels. Using on-chip cultured rat cardiomyocytes, measured high-resolution optical opacity images, extracellular potential recordings, biphasic current stimulation, and cellular impedance images demonstrate the unique advantages of the system for real-time holistic cell characterization and drug screening. Moreover, this paper demonstrates the use of optical detection on the on-chip cultured cardiomyocytes to real-time track their cyclic beating pattern and beating rate.

    Congratulations team!

  • Sep 2017

    Yeo Joon Youn is selected to receive the highly prestigious Kwanjeong Educational Foundation (KEF) that will sponsor his PhD study in GEMS group at Georgia Tech.

    The KEF foundation was established in 2000. Its mission is to provide scholarships for excellent Korean students studying abroad and enable them to concentrate on their studies and develop their full potential. Each year KEF selects distinguished Korean students who will pursue their advanced studies in widely recognized universities outside of Korea. The scholarship recipients are selected based on their outstanding undergraduate academic performance, the excellence of their graduate programs, and the potential impact of their graduate research.

    Yeo Joon Youn received his B.Sc in Electrical and Computer Engineering (ECE) at Seoul National University (SNU), Seoul, South Korea (Summa Cum Laude) in summer 2017. He received a 2-year National Scholarship for Science and Engineering from Korea Student Aid Foundation in 2014-2015. He won the Silver Medal of the University Students Contest of Mathematics in Korean Mathematical Society in 2008.

    Starting from fall 2017, Yeo Joon pursues his PhD study at Georgia Tech GEMS lab. His PhD research focuses on multi-modal hybrid biology/nano-electronics systems for sensing, actuation, and energy harvesting.

  • Aug 2017

    Sanghoon Lee, B.Sc in EE from University of Massachusetts, Amherst (Magna Cum Laude) and 2017 Georgia Tech Presidential Fellowship award winner, joins GEMS lab as a Ph.D. student. Welcome aboard, Sanghoon!

  • Aug 2017

    Tzu-Yuan Huang, B.Sc in ECE from NCTU Taiwan and M.S. in CE from NTU Taiwan, joins GEMS lab as a Ph.D. student. Welcome aboard, Tzu-Yuan!

  • Aug 2017

    Adam Wang, B.Sc in EE and Math from Vanderbilt University (Summa Cum Laude) and 2017 Georgia Tech Presidential Fellowship award winner, joins GEMS lab as a Ph.D. student. Welcome aboard, Adam!

  • Aug 2017

    Yeojoon Yoon, B.Sc at SNU South Korea (Summa Cum Laude), joins GEMS lab as a Ph.D. student. Welcome aboard, Yeojoon!

  • Aug 2017

    Taiyun, Sensen, and Jongseok's journal paper entitled "A Multi-Feed Antenna for High-Efficiency On-Antenna Power Combining" has been accepted for publication at IEEE Transactions on Antennas and Propagation (T-AP).

    This paper presents a theoretical study on various multi-feed antenna topologies and their capabilities of achieving direct on-antenna power combining with high-efficiency. Several new multi-feed antenna designs are experimentally demonstrated in this paper.

    Congratulations Team!

  • Aug 2017

    Tso-Wei's journal paper entitled "A Millimeter-Wave Fully Integrated Passive Reflection-Type Phase Shifter with Transformer-Based Multi-Resonance Loads for 360° Phase Shifting" has been accepted for publication at IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I).

    This paper gives a comprehensive review on fully integrated passive reflection-type phase shifters (RTPS) with various reflective loads. It demonstrates a new transformer-based multi-resonance RTPS at 60GHz that covers 360° full phase range with the best reported phase-shift/insertion-loss FOM of 37.1°/dB.

    Congratulations Tso-Wei!

  • Jun 2017

    Mr. Zhanyi Qian, an antenna design expert and senior staff engineer from Speed Wireless Technology, joins GEMS lab as a visitng scholar. Welcome aboard Mr. Qian!

  • Jun 2017

    Our 5G mm-Wave research on multi-band mm-Wave Doherty power amplifier and multi-feed antenna for direct on-antenna power combining will be presented as an invited paper at IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM), Sep. 2017.

    Congratulations team!

  • Jun 2017

    Sensen and Taiyun's paper entitled "A Millimeter-Wave Dual-Feed Square Loop Antenna for 5G Communications" has been accepted for publication at IEEE Transactions on Antennas and Propagation (T-AP). This paper will be presented in the IEEE T-AP Special Issue on “Antennas and Propagation Aspects of 5G Communications" in October 2017.

    Congratulations Sensen and Taiyun!

  • May 2017

    Dr. Wang will serve as the Guest Editor of the IEEE Journal of Solid-State Circuits (JSSC) special issue for the IEEE 2017 BCTM conference.

  • May 2017

    Edgar has been selected as a GEM fellow based on his academic record, prior awards, and current Ph.D. research. He is also selected as an Intel scholar, and he will join Intel Corporation as a summer intern in 2017.

    Congratulations on this great achievements, Edgar!

  • Apr 2017

    Dr. Wang will serve as a steering committee member for the IEEE Radio Frequency Integrated Circuits Symposium (RFIC) starting from 2018.

  • Apr 2017

    Dr. Wang will serve as a steering committee member for the IEEE Custom Integrated Circuits Conference (CICC) starting from 2018.

  • Mar 2017

    Dr. Yoshitaka Niida from Fujitsu Laboratories LTD. (Japan) joins GEMS lab as a visitor scholar. Welcome aboard Dr. Niida!

  • Mar 2017

    Dr. Wang is invited to serve as a Technical Program Committee (TPC) member on the RF subcommittee for the IEEE International Solid-State Circuits Conference (ISSCC) in 2018.

  • Mar 2017

    Our invited paper entitled "Addressing the Challenges of 5G Systems: Research at the Georgia Institute of Technology" is accepted for publication at IEEE 2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI). This invited paper is co-authored by Dr. Andrew Peterson, Dr. Hua Wang, Dr. Manos Tentzeris, Dr. Geoffrey Li, and Dr. Ian Akyildiz at the School of ECE of Georgia Tech.

  • Mar 2017

    Song's paper entitled "A Compact Broadband Mixed-Signal Power Amplifier in Bulk CMOS with Hybrid Class-G and Dynamic Load Trajectory Manipulation" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC).

    Congratulations Song!

  • Jan 2017

    Dr. Wang is selected to receive the 2017 Outstanding Young Engineer Award of the IEEE Microwave Theory and Techniques Society (MTT-S). This award recognizes an outstanding young MTT-S Member, who has distinguished him/herself through achievement(s), which may be technical (within the MTT-S Field of Interest), exemplary service to the MTT-S, or a combination of both.

    The award will be conferred at the annual Society Awards Banquet to be held during the IEEE MTT-S International Microwave Symposium the week of 5-9 June, 2017 in Honolulu, Hawaii.

  • Jan 2017

    Min-Yu and Fei are selected as the winners of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2017. Congratulations Min-Yu and Fe!

  •  
  • Jan 2017

    Taiyun and Min-Yu's paper in collaboration with Professor Foster Dai's group from Auburn University has been accepted for publication at IEEE Custom Integrated Circuits Conference (CICC) 2017. The paper is entitled "A Bidirectional Lens-Free Digital-Bits-In/-Out 0.57mm2 Terahertz Nano-Radio in CMOS with 49.3mW Peak Power Consumption Supporting 50cm Internet-of-Things Communication."

    This paper is also nominated for the 2017 IEEE CICC Best Student Paper Award!

    Congratulations team!

  • Jan 2017

    Jongseok, Moez, Doohwan, Taiyun, and Sensen's paper in collaboration with Professor Hee Cheol Cho's group from Emory University has been accepted for publication at IEEE Custom Integrated Circuits Conference (CICC) 2017. The paper is entitled "A CMOS 22k-Pixel Single-Cell Resolution Multi-Modality Real-Time Cellular Sensing Array."

    Congratulations team!

  • Jan 2017

    Our paper in collaboration with Professor Foster Dai's group from Auburn University has been accepted for publication at IEEE Custom Integrated Circuits Conference (CICC) 2017. The paper is entitled "A 330μW 1.25ps 400fs-INL Vernier Time-to-Digital Converter with 2D Reconfigurable Spiral Arbiter Array and 2nd-Order ΔΣ Linearization."

    Congratulations team!

  • Dec 2016

    Min-Yu, Taiyun, and Fei's paper entitled "An All-Passive Negative Feedback Network for Broadband and Wide Field-of-View Self-Steering Beam-Forming with Zero DC Power Consumption" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC).

    Congratulations team!

  • Dec 2016

    Jongseok is selected to receive the IEEE Solid-State Circuits Society (SSCS) Predoctoral Achievement Award for 2015-2016 for the research on "Multi-Modality Cellular Interface with Single-Cell Resolution and Tissue-Level Field-of-View (FoV)."

    This is the highest honor for PhD students from the IEEE SSCS society. Congratulations Jongseok!

  • Nov 2016

    Our paper entitled "Live Demonstration: A 1024-Pixel CMOS Multi-Modality Sensing Array for Cell-Based Assays" won the 2016 IEEE SENSORS Conference Best Live Demo Award (2nd Place). This paper is authored by Jong Seok Park, Moez Karim Aziz, Taiyun Chi, Amy Su, Andrew Zhao, Hee Cheol Cho, Mark Styczynski, and Hua Wang.

    In this paper, we present a live demonstration of a CMOS multi-modality cellular biosensor array chip for drug screening and cell-based assays. The multi-modality sensing functionality enables real-time measurements of multiple physiological parameters of biological cells and cell clusters. Compared with existing single-modality sensors, our multi-modality sensor captures multi-physics cellular responses with a high spatiotemporal resolution, substantially expanding our capabilities of monitoring cellular states and understanding complex drug mechanistic effects. For our live demonstration, we operate our CMOS sensor chip with various bio-samples, including on-chip cultured E Coli. bacteria colonies, to present its multi-modality sensing capability and clinical relevance.

    Congratulations team!

  • Nov 2016

    Min-Yu and Edgar's papers are accepted for publication at the Government Microcircuit Applications and Critical Technology Conference (GOMACTech) 2017. Congratulations Min-Yu and Edgar!

  • Oct 2016

    Our paper entitled "A Packaged 90-300GHz Transmitter and 115-325GHz Coherent Receiver in CMOS for Full-Band Continuous-Wave Mm-Wave and THz Hyperspectral Imaging" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2017. This paper is authored by Taiyun Chi, Min-Yu Huang, Sensen Li, and Hua Wang. Congratulations team!

  • Oct 2016

    Song and Fei's paper entitled "A 28GHz/37GHz/39GHz Multiband Linear Doherty Power Amplifier for 5G Massive MIMO Applications" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2017. Congratulations Song and Fei!

  • Oct 2016

    Jongseok's paper entitled "A 24dBm 2-to-4.3GHz Wideband Digital Power Amplifier with Built-In AM-PM Distortion Self-Compensation" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2017. Congratulations Jongseok!

  • Oct 2016

    Our paper entitled "A 60GHz On-Chip Linear Radiator with Single-Element 27.9dBm Psat and 33.1dBm Peak EIRP Using Multi-Feed Antenna for Direct On-Antenna Power Combining" is accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2017. This paper is authored by Taiyun Chi, Fei Wang, Sensen Li, Min-Yu Huang, Jong Seok Park, and Hua Wang. Congratulations team!

  • Sep 2016

    Jongseok and Song's paper entitled "A Highly Linear Dual-Band Mixed-Mode Polar Power Amplifier in CMOS with An Ultra-Compact Output Network" won the IEEE CICC 2015 Best Student Paper Award! The award will be presented to them at the IEEE CICC 2017 that will be held in April in Austin Texas.

    Congratulations Jongseok and Song on your excellent work!

    This paper presents a highly linear dual-band mixed-mode polar power amplifier (PA) fully integrated in a standard 65 nm bulk CMOS process. Without using any switch or tunable elements, an ultra-compact single-transformer-based passive network provides optimum load impedance transformation simultaneously at two operating frequencies (2.6GHz/4.5GHz), reducing the PA chip size by 50%. The mixed-mode PA also leverages both digital and analog techniques to dynamically suppress the AM-AM and AM-PM distortions and to support highly linear complex modulations (256QAM).

    This is the world-first demonstration of a fully-integrated CMOS power amplifier that supports two operation frequencies using one single on-chip transformer for ultra-compact chip area. This work was performed through our collaboration program with Intel Corporation.

  • Aug 2016

    Edgar Garay won the Alfred P. Sloan Foundation's Minority PhD (MPHD) Scholarship and became a Sloan Scholar!

    Congratulations Edgar on receiving this prestigious award!

  • Jun 2016

    Jongseok and Song's paper entitled "A Highly Linear Dual-Band Mixed-Mode Polar Power Amplifier in CMOS with An Ultra-Compact Output Network" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC).

    Congratulations Jongseok and Song!

  • May 2016

    Min-Yu and Taiyun's RFIC paper entitled "A 5GHz All-Passive Negative Feedback Network for RF Front-End Self-Steering Beam-Forming with Zero DC Power Consumption" won the IEEE RFIC 2016 Best Student Paper Award (2nd Place)!

    Congratulations Min-Yu and Taiyun on your excellent work!

    In this paper, we proposed and demonstrated an all-passive RF front-end phased-array beam-forming scheme that can autonomously form a receiver beam and track the direction of an unknown incident RF beam.

    The beam-former only consists of fully integrated passive components and consumes zero DC power. More importantly, the proposed beam-former processes the signal information in both phase and voltage domains, and the nonlinear conversions between the two signal domains are exploited to achieve a negative feedback loop with a large loop gain for high-accuracy phased-array beam-forming and autonomous beam-tracking. A proof-of-concept 4-element self-steering beam-former is implemented in a standard 130nm CMOS process and occupies a tiny integrated circuit (IC) chip area of 4.1mm2. To the best of the team's knowledge, this is the first demonstration of an all-passive negative feedback network capable of performing front-end self-steering beam-forming with zero DC power. The demonstration of this all-passive scheme outperforms any reported active self-steering beam-formers that often consume hundreds of milli-watt or watts of power consumption.

    Photograph at 2016 IEEE RFIC Student Best Paper Award Ceremony: (From left to right) Professor Albert Wang (University of California, Riverside, Conference General Chair of 2017 IEEE RFIC), Min-Yu Huang (1st Author), and Professor Hua Wang

  • May 2016

    Our IEEE Microwave Magazine paper entitled "The Wireless Workhorse: Mixed-Signal Power Amplifiers Leverage Digital and Analog Techniques to Enhance Large-Signal RF Operations" won the 2016 Microwave Magazine Best Paper Award of the IEEE Microwave Theory and Techniques Society (MTT-S)!

    The Microwave Magazine Best Paper Award recognizes a peer-reviewed technical article from the prior calendar year that provides the finest overview of the state of the art in a given area of the MTT Society’s field of interest.

    Our paper reviews recently reported new architectures for silicon-based power amplifiers (PAs) that exploit mixed-signal (both analog and digital) techniques to substantially improve PA performance, such as PA back-off power efficiency, in-band/out-of-band linearity, and robustness against antenna load variations. These advanced PA architectures and designs have become complex mixed-signal/mixed-mode RF systems with orchestrated collaborations among analog, digital, and large-signal RF operations.

    Photograph at 2016 IEEE IMS Award Banquet: (From left to right) Song Hu, Professor Hua Wang, and Professor Ke Wu (Polytechnique Montréal, 2016 president of the IEEE Microwave Theory and Techniques Society MTT-S)

  • Mar 2016

    Moez won the 2016 National Science Foundation (NSF) Graduate Research Fellowship! This is one of the top graduate student fellowship honors from US federal funding agencies.

    Congratulations Moez on receiving this prestigious award!

  • Mar 2016

    Song won the 2016 Roger P. Webb ECE Graduate Research Assistant Excellence Award!

    This is the highest honor for Georgia Tech ECE graduate students to recognize their outstanding research achievements. This honor is awarded to only two PhD students every year selected among the entire School of ECE.

    Congratulations Song on receiving this prestigious award!

  • Mar 2016

    Jongseok and Taiyun's paper entitled "An High-Density CMOS Multi-Modality Joint Sensor/Stimulator Array with 1024 Pixels for Holistic Real-Time Cellular Characterization" has been accepted for publication at 2016 IEEE Symosia on VLSI Technology and Circuits (VLSI)!

    Congratulations Jongseok and Taiyun!

  • Mar 2016

    Dr. Wang won the 2016 Sigma Xi Young Faculty Award of the Georgia Tech Chapter!

    The Sigma Xi Georgia Tech chapter annually awards two junior faculty members for their outstanding research achievements at Georgia Tech, as evidenced by publications, program development results, and other research contributions with highlights for the achievements in the previous calendar year.

  • Feb 2016

    Taiyun is selected to receive the 2016 IEEE Microwave Theory and Techniques Society (MTT-S) Graduate Fellowship on Medical Applications.

    Congratulations Taiyun!

  • Feb 2016

    Min-Yu and Taiyun's paper entitled "A 5GHz All-Passive Negative Feedback Network for RF Front-End
    Self-Steering Beam-Forming with Zero DC Power Consumption" has been accepted for publication at 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)!

    This paper has also been selected as a 2016 IEEE RFIC Best Student Paper Award Finalist!

    Congratulations Min-Yu and Taiyun!

     

  • Feb 2016

    Song and Fei's paper entitled "A Transformer-Based Inverted Complementary Cross-Coupled VCO with a 193.3dBc/Hz FoM and 13kHz 1/f3 Noise Corner" has been accepted for publication at 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)!

    Congratulations Song and Fei!

  • Feb 2016

    Song's paper entitled "A Compact Broadband Mixed-Signal Power Amplifier in Bulk CMOS with Hybrid Class-G and Dynamic Load Trajectory Manipulation Operations" has been accepted for publication at 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)!

    Congratulations Song!

     

  • Feb 2016

    Our invited paper entitled "Mixed-Signal Doherty Power Amplifiers in CMOS" has been accepted for publication at Proc. IEEE International Microwave Symposium (IMS) in 2016!

    This paper is invited for the the special IMS session “Celebrating the 80th anniversary of the Doherty Patent" as a new Doherty power amplifier (PA) architecture with digital reconfiurability to achieve real-time PA back-off efficiency optimization and robustness against in-field antenna load variation.

  • Feb 2016

    Sensen and Taiyun's paper entitled "A Fully Packaged D-Band MIMO Transmitter Using High-Density Flip-Chip Interconnects on A Flexible LCP Substrate" has been accepted for publication at Proc. IEEE International Microwave Symposium (IMS) in 2016! This paper is based on a collaboration project with Professor John Papapolymerou.

    Congratulations, Sensen and Taiyun!

  • Feb 2016

    Min-Yu's paper entitled "An Ultra-Compact Folded Inductor Based Mm-Wave Rat-Race Coupler in CMOS" has been accepted for publication at Proc. IEEE International Microwave Symposium (IMS) in 2016!

    Congratulations, Min-Yu!

  • Feb 2016

    Fei's paper entitled "An N-Way Transformer Based Wilkinson Power Divider in CMOS" has been accepted for publication at Proc. IEEE International Microwave Symposium (IMS) in 2016!

    Congratulations, Fei!

  • Feb 2016

    Fei's paper entitled "A Broadband Low-Loss Compact 4×4 Butler Matrix in CMOS with Stacked Transformer Based Quadrature Couplers" has been accepted for publication at Proc. IEEE International Microwave Symposium (IMS) in 2016!

    Congratulations, Fei!

  • Jan 2016

    Our hybrid class-G digital Doherty PA chip microphotograph is shown on the cover page of the February issue of the IEEE Microwave Magazine!

  • Jan 2016

    Tso-Wei is selected as the winner of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2016. Congratulations Tso-Wei!

  • Dec 2015

    Dr. Wang and Dr. Kaushik Sengupta's book, RF and mm-Wave Power Generation in Silicon, is now published!

  • Dec 2015

    Song is selected to receive the IEEE Solid-State Circuits Society (SSCS) Predoctoral Achievement Award for 2015-2016 for the research on "Mixed-Signal Power Amplifier Architecture with Self-Contained In-Situ Linearization and Efficiency Enhancement."

    This is the highest honor for PhD students from the IEEE SSCS society. Congratulations Song!

  • Nov 2015

    Song's paper entitled "A Broadband Mixed-Signal CMOS Power Amplifier with A Hybrid Class-G Doherty Efficiency Enhancement Technique" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC).

    This paper proposes and demonstrates a broadband mixed-signal CMOS PA with a hybrid Class-G Doherty architecture for PA efficiency enhancement up to the deep power back-off (PBO) region. The PA is fully integrated in a standard 65 nm bulk CMOS process, and achieves +26.7 dBm peak output power (Pout) with 40.2% peak drain efficiency (DE) at 3.71 GHz. The DE at 6 and 12 dB PBO are 1.8× and 2.6× over the Class-B operation, advancing the state-of-the-art CMOS PA PBO efficiency performance.

    Congratulations Song!

  • Nov 2015

    Taiyun and Jongseok's paper entitled "A Multi-Modality CMOS Sensor Array for Cell-Based Assay and Drug Screening" has been accepted for publication at IEEE Transactions on Biomedical Circuits and Systems (TBCAS).

    This paper demonstrates the world-first multi-modality CMOS sensor array for real-time and holistic characterization of cell physiological responses. Comprehensive biological experiments with different living cell samples demonstrate the functionality and benefit of the proposed multi-modality sensing in cell-based assay and drug screening applications.

    Congratulations Taiyun and Jongseok!

  • Nov 2015

    Jongseok's paper entitled "A Transformer-Based Poly-Phase Network for Ultra-Broadband Quadrature Signal Generation" has been accepted for publication at IEEE Transactions on Microwave Theory and Techinques (T-MTT).

    This paper demonstrates a fully integrated all-passive network in a standard 65nm bulk CMOS that can generate high-quality differential quadrature signals (4-phases) for a world-first one-decade bandwidth (2GHz-20GHz) with low-loss (3.65dB) and compact area. The 2-20GHz coverage is the instantaneous bandwidth without using any band selection switches or tunable components.

    Congratulations Jongseok!

  • Oct 2015

    Jongseok's paper entitled "A Fully Differential Ultra-Compact Broadband Transformer-Based Wilkinson Power Divider,” has been accepted for publication at IEEE Microwave and Wireless Component Letter (MWCL).

    This paper demonstrates a fully integrated novel transformer-based Wilkinson power divider/combiner in a standard 130nm SiGe BiOCMOS process. A proof-of-concept implementation at 60GHz achieves low-loss (1.32dB), well balanced output magnitude/phase (0.2dB/5 degrees), and 64% 1dB insertion-loss bandwidth.

    Congratulations Jongseok!

  • Sep 2015

    Our review paper on mixed-signal power amplifiers (PAs) is published at IEEE Microwave Magazine. The paper is entitled "The Wireless Workhorse: Mixed-Signal Power Amplifiers Leverage Digital and Analog Techniques to Enhance Large-Signal RF Operations."

    This paper reviews recently reported CMOS PA architectures that exploit mixed-signal (both analog and digital) techniques to substantially improve PA performance, such as PA back-off efficiency, in-band/out-of-band linearity, and robustness against antenna load variations. These advanced CMOS PA designs have become complex mixed-signal/mixed-mode RF systems with orchestrated collaborations among analog, digital, and large-signal RF operations.

  • Sep 2015

    Our collaboration work with Georgia Tech Integrated 3D System Group (I3DS) on hybrid biosensor system has been accepted for publication at 2015 IEEE International Electron Devices Meeting (IEDM). IEEE IEDM is the flagship conference for nanometer-scale CMOS transistor technology, advanced memory, displays, sensors, MEMS devices, novel quantum and nano-scale devices and phenomenology, optoelectronics, devices for power and energy harvesting, high-speed devices, as well as process technology and device modeling and simulation.

    Our talk is entitled "A Microfabricated Electronic Microplate Platform for Low-cost Repeatable Bio-sensing Applications."

    Congratulations on this successful collaboration work, Taiyun!

  • Sep 2015

    Our collaboration work with Georgia Tech Integrated 3D System Group (I3DS) on Silicon Membranes/CMOS IC hybrid biosensor system has been accepted for publication at 2015 IEEE Biomedical Circuits and Systems Conference (BioCAS).

    Our talk is entitled "Fabrication of and Cell Growth on ‘Silicon Membranes’ with High Density TSVs for Bio-sensing Applications."

    Congratulations on this successful collaboration work, Taiyun!

  • Sep 2015

    Our silicon-based THz signal generation work has been invited to present at the 2015 IEEE Asia-Pacific Microwave Conference (APMC). Our talk is entitled "A Hybrid Technique for PA Back-Off Efficiency Enhancement - A Broadband Mixed-Signal Class-G Doherty PA in CMOS."

  • Sep 2015

    Our hybrid Class-G Doherty Power Amplifier research work has been invited to present at the 2015 IEEE Power Amplifier Topical Symposium at the University of California, San Diego. Our talk is entitled "A Hybrid Technique for PA Back-Off Efficiency Enhancement - A Broadband Mixed-Signal Class-G Doherty PA in CMOS."

  • Aug 2015

    Dr. Wang becomes a faculty member of the Georgia Tech Parker H. Petit Institute for Bioengineering and Bioscience.

  • Jul 2015

    SRC is awarded a two-year funding from NIST (National Institute of Standards and Technology) to develop a Semiconductor Synthetic Biology (SSB) Consortium and Roadmap for future Semiconductor Synthetic Biology technologies.

    Dr. Wang is selected to serve as the chair for the Technical Working Group of "Intelligent Sensor System" and a member of the Roadmap Executive Committee in this SRC-NIST SSB roadmap effort. The mission of this Technical Working Group is to investigate potential technologies to enable the next-generation synthetic biology-semiconductor interfacing.

  • Jul 2015

    Song's paper paper entitled "Design of A Transformer-Based Reconfigurable Digital Polar Doherty Power Amplifier Fully Integrated in Bulk CMOS" was among the Top 13 Most Frequently Downloaded Documents for IEEE Journal of Solid State Circuits (JSSC) in May 2015. Congratulations Song!

  • Jun 2015

    Jong Seok and Song's paper entitled "A Highly Linear Dual-Band Mixed-Mode Polar Power Amplifier in CMOS with An Ultra-Compact Output Network" has been nominated for the 2015 IEEE CICC Best Student Paper Award! Congratulations, Jong Seok and Song!

  • Jun 2015

    Tso-Wei and Jong Seok's paper entitled "A 2-24GHz 360-Degree Full-Span Differential Vector Modulator Phase Rotator with Transformer-Based Poly-Phase Quadrature Network" has been nominated for the 2015 IEEE CICC Best Student Paper Award! Congratulations, Tso-Wei and Jong Seok!

  • Jun 2015

    Chengjie (Bert) Zhu has been selected as a recipient of the Georgia Tech President’s Undergraduate Research Salary Award (PURA) for Fall 2015 based on his research on Paramagnetic Lab-on-Chip (LoC) Platform with Microfluidic Channel. This is the 2nd time for Chengjie to win this highly prestigious undergraduate research award!

    Congratulations Chengjie!

  • Jun 2015

    Jong Seok and Song's paper entitled "A Highly Linear Dual-Band Mixed-Mode Polar Power Amplifier in CMOS with An Ultra-Compact Output Network" has been accepted for publication at IEEE Custom Integrated Circuits Conference (CICC) in 2015! Congratulations, Jong Seok and Song!

  • Jun 2015

    Tso-Wei and Jong Seok's paper entitled "A 2-24GHz 360-Degree Full-Span Differential Vector Modulator Phase Rotator with Transformer-Based Poly-Phase Quadrature Network" has been accepted for publication at IEEE Custom Integrated Circuits Conference (CICC) in 2015! Congratulations, Tso-Wei and Jong Seok!

  • Jun 2015

    Tso-Wei's paper entitled "A Millimeter-Wave Fully Differential Transformer-Based Passive Reflective-Type Phase Shifter" has been accepted for publication at IEEE Custom Integrated Circuits Conference (CICC) in 2015! Congratulations, Tso-Wei!

  • May 2015

    Our invited review paper entitled "Mixed-Signal Power Amplifiers: Leveraging Digital and Analog Techniques to Enhance Large-Signal RF Operations" has been accepted for publication at IEEE Microwave Magazine.

  • May 2015

    Dr. Wang is selected to serve on the technical committee (TC) for the IEEE/CAS-EMB Biomedical Circuits and Systems Conference (BioCAS) starting from 2015.

  • Apr 2015

    Our research on multi-modality CMOS biosensor array and its applications in synthetic biology research, drug development, chemical scanning, and personalized medicine receives press coverage at EETimes and other major news media.

    We are combining CMOS microelectronics and living biological components to build hybrid "cyborg-like" systems for sensing, actuation, signal process, and biological synthesis.

    Our ultimate goal is to see if we could eventually build a CMOS hybrid life form.

    EETimes, SRC, Bloomberg, Business Wire, Phys.org, Solid State Technology, Virtual-Strategy Magazine, Digital Journal, EIN News Desk, R&D Magazine, EETimes (Japan)

  • Apr 2015

    Georgia Tech press release on our multi-modality CMOS biosensor array research.

    Georgia Tech News Center, Georgia Tech Research Horizons, Georgia Tech School of ECE News, Georgia Tech IEN News

  • Apr 2015

    Dr. Wang receives the 2015 Roger P. Webb ECE Outstanding Junior Faculty Member Award.

    Georgia Tech School of ECE News

  • Mar 2015

    Taiyun's paper entitled "A Multi-Phase Sub-Harmonic Injection Locking Technique for Bandwidth Extension in Silicon-Based THz Signal Generation" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Taiyun!

  • Mar 2015

    Toshak Singhal joins GEMS lab as a master student. Welcome aboard Toshak!

  • Mar 2015

    Song's paper paper entitled "Antenna Impedance Variation Compensation By Exploiting A Digital Doherty Power Amplifier Architecture" was among the Top 10 Most Frequently Downloaded Documents for IEEE Transactions on Microwave Theory and Techinques (T-MTT) in February 2015. Congratulations Song!

  • Mar 2015

    Song's paper entitled "Design of A Transformer-Based Reconfigurable Digital Polar Doherty Power Amplifier Fully Integrated in Bulk CMOS" has been accepted for publication at IEEE Journal of Solid-State Circuits (JSSC). Congratulations Song!

  • Feb 2015

    Dr. Wang is selected to receive the 2015 Lockheed Dean’s Excellence in Teaching Award.

    The purpose of this award is to recognize outstanding educators from among the untenured junior faculty from the Georgia Tech Schools of Aerospace Engineering, Electrical and Computer Engineering, Mechanical Engineering, and the College of Computing. Award recipients are selected for extraordinary effectiveness in classroom teaching, educational innovations, inspiration transmitted to students, direct impact and involvement with students, and impact on the postgraduate success of students.

  • Feb 2015

    Song is selected to receive the IEEE Microwave Theory and Techniques Society (MTT-S) Graduate Fellowship for the research on "Digital Intensive Hybrid Architectures for Efficiency and Linearity Improvement in Silicon-based RF Power Amplifier." Congratulations Song!

  • Feb 2015

    Taiyun's paper entitled "A +2.3dBm 124-158GHz Class-C Frequency Quadrupler with Folded-Transformer Based Multi-Phase Driving" has been accepted for publication at IEEE Radio Frequency Integrated Circuits Symposium (RFIC). Congratulations Taiyun!

  • Feb 2015

    Dr. Wang is elevated to a senior member of IEEE.

  • Feb 2015

    Dr. Wang won the 2015 National Science Foundation (NSF) CAREER award.

  • Feb 2015

    Dr. Wang serves as an Organizational Committee Member for the IEEE Custom Integrated Circuits Conference (CICC) starting from 2015.

  • Jan 2015

    Jongseok's paper entitled "A Transformer-Based Poly-Phase Network for Ultra-Broadband Quadrature Signal Generation" has been accepted for publication at IEEE International Microwave Symposium (IMS). Congratulations Jongseok!

    Taiyun's collaboration paper with GT SiGe group and GT MiRCTECH group entitled "A D-band (110 to 170 GHz) SPDT Switch in 32 nm CMOS SOI" has been accepted for publication at IEEE International Microwave Symposium (IMS). Congratulations Taiyun!

  • Jan 2015

    Taiyun is selected as the winner of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2015. Congratulations Taiyun!

  • Jan 2015

    Tabish joins GEMS lab as a master student for his "Special Problem" Graduate Research Program. Evan joins GEMS lab as an undergraduate researcher. Welcome aboard Tabish and Evan!

  • Dec 2014

    Our IEEE Atlanta SSCS/CASS joint chapter wins the IEEE SSCS Outstanding Chapter Award of 2014! In each year, only one chapter selected among all the 85 IEEE SSCS chapters in the world receives this outstanding chapter award, which recognizes the chapter's excellence in organzing professional and education outreach activities.

    This award will be officially annouced at the Plenary Session of the IEEE International Solid-State Circuits Conference (ISSCC) in Feb 2015.

  • Dec 2014

    Song's paper entitled "Antenna Impedance Variation Compensation By Exploiting A Digital Doherty Power Amplifier Architecture" has been accepted for publication at IEEE Transactions on Microwave Theory and Techniques (T-MTT). Congratulations Song!

  • Nov 2014

    GEMS lab has 3 papers accepted for publication at the 2015 Government Microcircuit Applications & Critical Technology Conference (GOMACTech)! Congratulations Tso-Wei, Stefan, and Song on your excellent work!

  • Oct 2014

    Jongseok and Taiyun's paper entitled "A Multi-Modality CMOS Sensor Array for Cell-Based Assay and Drug Screening" has been accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2015. Congratulations Jongseok and Taiyun!

  • Oct 2014

    Song's paper entitled "A Broadband CMOS Digital Power Amplifier with Hybrid Class-G Doherty Efficiency Enhancement" has been accepted for publication at IEEE International Solid-State Circuits Conference (ISSCC) 2015. Congratulations Song!

  • Sep 2014

    Taiyun won the Texas Instruments CICC Student Scholarship Award! Taiyun's paper is one of the highest rated papers among the Best Student Paper finalists submitted to 2014 CICC. The award winning paper is entitled "A Multi-Phase Sub-Harmonic Injection Locking Technique for Bandwidth Extension in Silicon-Based THz Signal Generation."

    Congratulations Taiyun on your excellent work!

    Photograph at 2014 IEEE CICC Conference: (From left to right) Dr. Don Thelen (ON Semiconductor, Technical Program Chair of 2014 IEEE CICC) and Taiyun Chi.
  • Aug 2014

    Our work on CMOS Power Amplifiers has been invited to present at the 2014 Power Amplifier Symposium at the University of California, San Diego. Our talk is entitled "Enhancing Doherty Power Amplifier Operation by A Digitally Reconfigurable Architeture.

  • Aug 2014

    Manoj Aripirala joins GEMS lab as a master student for his "Special Problem" Graduate Research Program. Tianhao Li joins GEMS lab as an undergraduate researcher. Welcome aboard Manoj and Tianhao!

  • Aug 2014

    Min-Yu Huang and Fei Wang join GEMS lab as PhD students. Welcome aboard Min-Yu and Fei!

  • Aug 2014

    Dr. Wang starts to serve as an associate editor of the IEEE Microwave and Wireless Components Letters (MWCL). This is one of the journal publications with the IEEE Microwave Theory and Technique (MTT) Society.

  • Jul 2014

    Dr. Wang is awarded the Demetrius T. Paris Junior Professorship in Electrical and Computer Engineering at Georgia Tech.

  • Jun 2014

    Choongsoon and Chengjie's paper entitled "A Reconfigurable Bio-Impedance Sensing Platform With Array-Based Detection Algorithm for 3D Tissue Characterization and Delineation" has been accepted by BMES 2014 Annual Meeting. Congratulations Choongsoon and Chengjie!

  • Jun 2014

    Dr. Wang has been selected as the 2014 Class of 1969 Teaching Scholar at Georgia Tech.

  • Jun 2014

    Dr. Venkatesh Ramalingam joined GEMS lab as part of the Georgia Intern Fellowship Teacher (GIFT) Program. Dr. Ramalingam has 18 years of teaching experience as a high school teacher in Physics and Mathematics. We are proud of having him join our GEMS lab and help us further expand our K-12 outreach activities.

    Welcome aboard Venkatesh!

  • Jun 2014

    Song and Jongseok's RFIC paper entitled "A +27.3dBm Transformer-Based Digital Doherty Polar Power Amplifier Fully Integrated in Bulk CMOS" won the IEEE RFIC 2014 Best Student Paper Award (1st Place)!

    Congratulations Song and Jongseok on your excellent work!

    In this paper, we proposed a novel digital Doherty polar power amplifier (PA) circuit architecture and implemented it in a standard 65nm CMOS process.

    Our proposed digital Doherty PA architecture leverages digital reconfigurability and achieves (1) optimum Doherty active load-modulation operation for maximum PA back-off efficiency enhancement and (2) optimum AM-AM and AM-PM linearization. These desired properties enable the wireless transmission of high data-rate with drastically enhanced efficiency, and therefore extended battery life in mobile devices. In addition, we have demonstrated that such a digital Doherty architecture can be reconfigured to achieve robust PA performance against antenna load variations. This aspect of the design opens the door for in-field transmitter reconfiguration to ensure optimum wireless transmission under different or even time-varying radiation environments.

    This digital Doherty PA circuit architecture can be further extended to other integrated circuit process to address non-commercial applications.

    RFIC Besty Student Paper Award GEMS 2014

    Photograph at 2014 IEEE RFIC Student Best Paper Award Ceremony: (From left to right) Professor Hua Wang, Jong Seok Park, Song Hu (1st Author), and Lawrence Kushner (BAE Systems, Conference General Chair of 2014 IEEE RFIC)

  • Jun 2014

    GEMS lab won the 2014 Defense University Research Instrumentation Program (DURIP) award!

    The proposed research focuses on "Characterization and Development of Energy-Efficient Scalable Integrated THz Signal Sources."

    Dr. Wang serves as the PI of this DURIP project.

  • Jun 2014

    Taiyun and Song's paper entitled "A Multi-Phase Sub-Harmonic Injection Locking Technique for Bandwidth Extension in Silicon-Based THz Signal Generation" has been accepted by IEEE Custom Integrated Circuits Conference (CICC) 2014 and has been nominated for the 2014 CICC Best Student Paper Award! Congratulations Taiyun and Song!

  • Jun 2014

    An invited paper entitled "A New Wave of CMOS Power Amplifier Innovations: Fusing Digital and Analog Techniques with Large Signal RF Operations" has been accepted by IEEE Custom Integrated Circuits Conference (CICC) 2014. We collaborated with Toshiba and Caltech on this review paper which summarizes state-of-the-art CMOS Power Amplifier Techniques.

  • Jun 2014

    Taiyun and Jongseok's paper entitled "A Low-Power and Ultra-Compact W-band Transmitter Front-End in 90 nm SiGe BiCMOS Technology" has been accepted by IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM) 2014. Congratulations Taiyun and Jongseok!

  • May 2014

    GEMS lab receives the Georgia Tech IEN Seed Grant. This grant will support our research on Post Processing and Packaging Techniques Development for CMOS Biosensors.

  • Apr 2014

    Dr. Wang will serve as the chair for a special session entitled "CMOS Biosensors for Molecular Diagnostics and Cellular Monitoring" at IEEE 2014 Biomedical Circuits and Systems Conference (BioCAS) in Lausanne Switzerland in October 2014. Dr. Sam Kavusi, Bio-ASICs technical lead at Robert Bosch Research and Technology Center, will serve as the session co-chair.

  • Mar 2014

    Dr. Wang is invited to give a seminar talk on his teaching innovation at the Engaging Conversations Series at the Georgia Tech Center for the Enhancement of Teaching and Learning (CETL) in April 2014. The title of the talk is "'You're Hired!' --- Using a Mock Job Interview to Review Course Concepts".

  • Feb 2014

    Dr. Wang is invited to give a tutorial talk on "CMOS Biosensors for Molecular Diagnostics and Cellular Monitoring" at the International Symposium on Quality Electronic Design (ISQED) in March 2014.

  • Feb 2014

    Jongseok's paper entitled "A K-Band 10-Bit Digital Linear Phase Rotator with Folded Transformer Based Ultra-Compact Quadrature Generation" has been accepted for publication at IEEE Radio Frequency Integrated Circuits (RFIC) 2014. Congratulations Jongseok!

  • Feb 2014

    Song's paper entitled "A +27.3dBm Transformer-Based Digital Doherty Polar Power Amplifier Fully Integrated in Bulk CMOS" has been accepted for publication at IEEE Radio Frequency Integrated Circuits (RFIC) 2014. Congratulations Song!

  • Jan 2014

    Dr. Wang is selected to serve on the technical program committee (TPC) for the IEEE Custom Integrated Circuits Conference (CICC) starting from 2014.

  • Jan 2014

    Mohan Yang joined GEMS lab as an undergraduate researcher. Welcome aboard Mohan!

  • Jan 2014

    Stefan Lepkowski joined GEMS lab as a master student. Welcome aboard Stefan!

  • Jan 2014

    Xiangyu Mao joined GEMS lab as an undergraduate researcher. Welcome aboard Xiangyu!

  • Dec 2013

    Jongseok is selected as the winner of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2014. Congratulations Jongseok!

  • Dec 2013

    Song is selected as the winner of ISSCC Analog Devices Inc. Outstanding Student Designer Award in 2014. Congratulations Song!

  • Dec 2013

    Dr. Wang's paper entitled "Magnetic Sensors for Diagnostic Medicine: CMOS-Based Magnetic Particle Detectors for Medical Diagnosis Applications" was among the "Top 25 Most Frequently Downloaded Documents for IEEE Microwave Maganzine" in August, September, and November 2013.

  • Nov 2013

    Dr. Wang received sponsorship from Qualcomm for the RFIC Student Design Competition Awards in his class of ECE6420 Wireless IC.

  • Nov 2013

    Hao Ye joined GEMS lab. Welcome aboard Hao!

  • Oct 2013

    Adam Gleason joined GEMS lab. Welcome aboard Adam!

  • Oct 2013

    A Georgia Tech research team led by Dr. Hua Wang and Dr. Mark P. Styczynski won Semiconductor Research Corporation (SRC) funding to develop next-generation biosensors. The team was awarded a three-year research contract of $475,000, including the contribution from both SRC and the State of Georgia.

    Please find the press release about our Georgia Tech program on the websites of GT Department of Electrical and Computer Engineering and GT Institute for Electronics and Nanotechnology (IEN). Our program is part of SRC's Semiconductor Synthetic Biology (SSB) reseach initiative, which is featured on SRC, EE Times, Yahoo! Finance, and several other public websites.

  • July 2013

    Chengjie (Bert) Zhu has been selected as a recipient of the Georgia Tech President’s Undergraduate Research Salary Award (PURA) for Fall 2013 based on his research on real-time 3D tumor imaging. Congratulations Chengjie!

  • June 2013

    Dr. Wang has been selected as the 2013 Class of 1969 Teaching Fellow at Georgia Tech.

  • June 2013

    Jongseok and Taiyun's paper entitled “An Ultra-Broadband Compact Mm-Wave Butler Matrix in CMOS for Array-Based MIMO Systems” has been accepted by IEEE Custom Integrated Circuits Conference (CICC) 2013. Congratulations Jongseok and Taiyun!

  • June 2013

    Jongseok's paper entitled “A Fully Differential Ultra-Compact Broadband Transformer Based Quadrature Generation Scheme” has been accepted by IEEE Custom Integrated Circuits Conference (CICC) 2013. Congratulations Jongseok!

  • April 2013

    Choongsoon and Chengjie's paper entitled “A Microscopic Real-Time 3D Impedance Imaging Technique for Precise and Accurate Tumor Remove" has been accepted by Center for Clinical and Translational Science Conference, University of Kentucky. This is a collaboration research between GEMS and University of Kentucky School of Medicine. Congratulations Choongsoon and Chengjie!

  • Dec 2012

    Jongseok's paper entitled “A Passive Quadrature Generation Scheme for Integrated RF Systems” has been accepted by IEEE MTT-S International Wireless Symposium (IWS) 2013. Congratulations Jongseok!

Last revised on Feb 5th, 2021