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Georgia Tech Electronics and Micro-System Lab (GEMS)
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Chip Gallery
           

Research Thrust I: Mixed-Signal and Digital RF/mm-Wave Integrated Circuits and Systems

 

  • This is a hybrid mixed-signal Class-G Doherty PA design fully integrated in a 65nm bulk CMOS process. It leverages the joint operation of Class-G and Doherty PA techniques and achieves the best PA efficiency enhancement in deep power back-off among reported CMOS PAs without using any switches at PA RF output. This unique mixed-signal PA architecture also enables highly linear and broadband Doherty operations.
  • S. Hu, S. Kousai, and H. Wang, "A Broadband CMOS Digital Power Amplifier with Hybrid Class-G Doherty Efficiency Enhancement,” IEEE International Solid-State Circuits Conference (ISSCC) Dig. Tech. Papers, Feb. 2015.
  • S. Hu, S. Kousai, and H. Wang, “A Broadband Mixed-Signal CMOS Power Amplifier with A Hybrid Class-G Doherty Efficiency Enhancement Technique,” accepted and to appear in IEEE J. of Solid-State Circuits (JSSC), 2016.

 

 

Research Thrust II: Biosensor, Bioelectronics, and Biology-Microelectronics Hybrid Systems

 

  • This is the world first fully integrated multi-modality CMOS cellular sensor array with four different sensing modalities for holistic real-time joint-modality cellular characterization. The sensing modalities include extracellular voltage recording, cellular impedance mapping, optical detection (shadow imaging/bioluminescence sensing), and thermal monitoring.
  • Our GEMS group proposes and pioneers the concept of multi-modality sensing for holistic cellular characertization. The potential applications include massively parallel drug development, chemical screening, personalized medicine, high throughput stem cell characterization, cancer cell monitoring.
  • J. Park, T. Chi, J. Butts, T. Hookway, T. C. McDevitt, and H. Wang, "A Multi-Modality CMOS Sensor Array for Cell-Based Assay and Drug Screening,” IEEE International Solid-State Circuits Conference (ISSCC) Dig. Tech. Papers, Feb. 2015.
  • T. Chi, J. S. Park, J. C. Butts, T. A. Hookway, A. Su, C. Zhu, M. P. Styczynski, T. C. McDevitt, and H. Wang, “A Multi-Modality CMOS Sensor Array for Cell-Based Assay and Drug Screening,” accepted and to appear in IEEE Trans. Biomed. Circuits Syst. (TBCAS), Dec. 2015.
  • Press coverage at major news media: EETimes, SRC, Bloomberg, Business Wire, Phys.org, Solid State Technology, Virtual-Strategy Magazine, Digital Journal, EIN News Desk, EETimes (Japan)

 

 

Research Thrust III: THz Integrated Circuits and Systems for Imaging and Spectroscopy Applications

 

 

 

Last revised on Dec 30, 2015.