Campus Directory

Division Baskin School of Engineering

Department/College/Unit Electrical and Computer Engineering

Title Adjunct Faculty

Affiliation Faculty

Faculty Type Adjunct Faculty

Web Site

Primary Office Location Jack Baskin Engineering Building
247

Mail Stop SOE2

Biography, Education and Training

• Ph.D. in Electrical and Computer Engineering, University of Florida, Gainesville, FL
• M.S. in Electrical Engineering, Columbia University, New York, NY
• B.S. in Electrical and Computer Engineering, Purdue University, West Lafayette, IN

Research Interests

• Analog/RF/mm-wave/sub-THz integrated circuits for wireless communications and radar sensors
• Broadband and high-speed ASICs for optical interconnects
• RF/mm-wave/sub-THz power amplifier design using silicon-based and III-V semiconductor technologies
• Energy-efficient silicon-based phased-array transceivers
• Scalable and multibeam array architecture for massive MIMO
• Calibration and compensation techniques for RF SoCs
• Advanced heterogeneous integration techniques

Teaching Interests

ECE 101/L (Introduction to Electronic Circuits)
ECE 135/L (Electromagnetic Fields and Waves)
ECE 136 (Engineering Electromagnetics)
ECE 151 (Communications Systems)
ECE 152/252 (Wireless Communications)
ECE 171/L (Analog Electronics)
ECE 178/224 (Device Electronics)
ECE 222 (High-Speed Low-Power IC Design)
ECE 226 (CMOS RFIC Design)
ECE 251 (Principles of Digital Communications)

Selected Presentations

A. Chen, “Phased-array transceiver chipsets and modules for 5G FR2 and 60-GHz fixed wireless access – a commercial perspective,” in IEEE MTT-S International Microwave Symposium (IMS), San Diego, CA, Jun. 2023 (invited industry keynote). 

Selected Publications

C.-J. Wu, X. Jiang, J.-T. Chung, L.-C. Chang, L.-Y. Tseng, A. Y.-K. Chen, and C.-T. M. Wu, “Low-DC-power, low-phase-noise W-band differential fundamental oscillators and G-band push-push oscillators with mesa engineering in 70-nm GaAs pHEMT,” IEEE Transactions on Microwave Theory and Technology, vol. 74, no. 1, pp. 324–335, Jan. 2026.

D. Gao, C.-J. Wu, J.-T. Chung, S. Li, A. Y.-K. Chen, and C.-T. M. Wu, “A 138-GHz multimode super-regenerative oscillator radar sensor with quench control in 70-nm GaAs pHEMT technology,” IEEE Transactions on Microwave Theory and Technology, vol. 74, no. 1, pp. 435–448, Jan. 2026.

X. Jiang, C.-J. Wu, A. Y.-K. Chen, and C.-T. M. Wu, “A DC–120 GHz single-stage distributed amplifier with 472 GHz gain-bandwidth product in 70-nm GaAs pHEMT technology,” in IEEE Radio and Wireless Symposium (RWS), Los Angeles, CA, Jan. 2026, pp. 9–12.

E. Vardarli, A. Y.-K. Chen, and M. Schrӧter, “An 85–110 GHz class-AB SiGe power amplifier using doubly-tuned transformer and over-neutralization with 13.7% peak PAE,” in IEEE Silicon Monolithic Integrated Circuits in RF systems (SiRF), Los Angeles, CA, Jan. 2026, pp. 29–32.

E. Vardarli, A. Y.-K. Chen, and M. Schrӧter, “A low-power high-sensitivity 100-GHz 2:1 ECL static frequency divider with 68-GHz SOF in 130-nm SiGe:C BiCMOS,” in IEEE Silicon Monolithic Integrated Circuits in RF systems (SiRF), Los Angeles, CA, Jan. 2026, pp. 49–52.

H.-Y. Chang, P.-Y. Chen, and A. Y.-K. Chen, “Low-phase-noise and low-jitter signal generation techniques for 5G/6G and quantum computing applications,” IEEE Microwave Magazine, vol. 26, no. 12, pp. 76–98, Dec. 2025.

E. Vardarli, A. Y.-K. Chen, P. Sakalas, and M. Schrӧter, “A 6–32.5 GHz gain-enhanced and harmonically tuned class-E SiGe cascode power amplifier with 19.2 dBm Peak PSAT and 34% Peak PAE,” in IEEE European Solid-State Electronics Research Conference (ESSERC), Munich, Germany, Sep. 2025, pp. 625–628.

C.-J. Wu, X. Jiang, A. Y.-K. Chen, J.-T. Chung, L.-C. Chang, L-Y. Tseng, and C.-T. M. Wu, “Low-power and low-phase noise 94-GHz and 107.2-GHz differential fundamental oscillators in 70-nm GaAs pHEMT technology,” in IEEE MTT-S International Microwave Symposium (IMS), San Francisco, CA, Jun. 2025, pp. 634–637. 

C.-J. Wu, D. Gao, S. Li, A. Y.-K. Chen, and C.-T. M. Wu, “A 30-mW D-band high-sensitivity self-injection-locked radar sensor with integrated SIW antenna in 70-nm GaAs pHEMT technology,” in IEEE MTT-S International Microwave Symposium (IMS), San Francisco, CA, Jun. 2025, pp. 1119–1122.

D. Gao, S. Li, M. Zhu, A. Y.-K. Chen, and C.-T. M. Wu, “Recent advances in W-band GaAs MMIC radar sensors for high-precision vital sign monitoring,” in in IEEE International Microwave Biomedical Conference (IMBioC), Kaohsiung, Taiwan, Apr. 2025.

D. Gao, Y. Yuan, S. Li, A. Y.-K. Chen, and C.-T. M. Wu, “Recent advances in super-regenerative oscillator-based microwave and millimeter-wave radar sensors,” IEEE Microwave Magazine, vol. 26, no. 5, pp. 33–51, May 2025.

E. Vardarli, A. Y.-K. Chen, and M. Schrӧter, “A 7.7-mW DC-to-62 GHz ultra-wideband low-noise amplifier with ±2.1 ps group delay variation and 3.3 dB NF in 0.13-µm SiGe:C BiCMOS,” in IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS), Fort Lauderdale, FL, Oct. 2024, pp. 150–153. 

D. Gao, S. Li, M. Zhu, A. Y.-K. Chen, and C.-T. M. Wu, “A low-power low-latency 84.5-GHz GaAs pHEMT self-injection-locked radar sensor with integrated frequency differentiator for vital sign detection,” in IEEE MTT-S International Microwave Symposium (IMS), Washington, DC, Jun. 2024, pp. 899–902.      

E. Vardarli, A. Y.-K. Chen, and M. Schrӧter, “A low-power W-band SiGe-HBT double-balanced up-conversion mixer with an integrated second-order IF low-pass filter,” IEEE Microw. Wireless Techno. Lett., vol. 34, no. 5, pp 544–547, May 2024.

E. Vardarli, M. Krattenmacher, C. Weimer, A. Y.-K. Chen, and M. Schrӧter, “A W-band class-F234 SiGe HBT power amplifier with 35/19.7% peak/PBO6dB PAE and 26% 1-dB large-signal power bandwidth,” in IEEE European Microwave Integrated Circuits Conference (EuMIC), Berlin, Germany, Sep. 2023, pp. 277–280.

E. Vardarli, X. Jin, A. Y.-K. Chen, K. Aufinger, and M. Schrӧter, “A Q-band SiGe-HBT cryogenic Colpitts VCO for frequency-division multiplexed quantum computing,” in IEEE MTT-S International Microwave Symposium (IMS), San Diego, CA, Jun. 2023, pp. 549–552.

D. Gao, S. Li, A. Y.-K. Chen, and C.-T. M. Wu, “A W-band self-injection-locked vital signal radar sensor with on-chip SIW monopole antenna in 0.1-um GaAs pHEMT technology,” in IEEE MTT-S International Microwave Symposium (IMS), San Diego, CA, Jun. 2023, pp. 871–874.      

M. Zhu, A. Y.-K. Chen, and C.-T. M. Wu, “Tunable MMIC negative group delay transversal filter-based negative capacitor in 0.1-um GaAs pHEMT technology,” in IEEE MTT-S International Microwave Symposium (IMS), Denver, CO, Jun. 2022, pp. 757–760.

M. Zhu, A. Y.-K. Chen, C.-Y. Hsiao, C.-N. Kuo, and C.-T. M. Wu, “Active MMIC transversal filter-based negative group delay/non-Foster circuit in 0.1-um GaAs pHEMT technology,” in IEEE MTT-S International Microwave Symposium (IMS), Atlanta, GA, Jun. 2021, pp. 681–684.

Y. Yuan, A. Y.-K. Chen, and C.-T. M. Wu, “Super-regenerative oscillator based high-sensitivity radar architecture for motion sensing and vital sign detection,” IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 3, pp. 1974–1984, Mar. 2021.

Y. Yuan, A. Y.-K. Chen, and C.-T. M. Wu, “A high-sensitivity low-power vital sign radar sensor based on super-regenerative oscillator architecture,” in IEEE MTT-S International Microwave Symposium (IMS), Los Angeles, CA, Jun. 2020, pp. 651–654 (best student paper finalist).