Multifunctional Integrated Circuits and Systems Group (MICS) 

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Kwang-Jin Koh

Assistant Professor

Research Interests:

  • Integrated wireless circuits and systems (LNA, mixer, VCO, PLL and power amplifier)
  • Integrated radar circuits and systems in silicon technologies
  • Terahertz silicon electronic circuit and system designs
  • Low-power radio architectures and circuits
  • High-efficient on-chip power management circuits
  • Multiple-Input Multiple-Output (MIMO) and phased-array antenna systems

Recent Research Topics:

  • Low-power RF front-end architecture for wireless communications
  • 94 GHz radar systems in SiGe technology
  • Integrated on-chip RF energy harvesting circuits and systems
  • High efficient millimeter-wave power amplifier at >94 GHz
  • Millimeter-wave and terahertz phased-arrays in silicon technologies

Teaching Interests:

  • RF integrated circuits and systems: LNA, mixer, VCO, power amplifier and PLL designs
  • Analog integrated circuits and systems
  • Mixed-mode integrated circuits and systems
  • Low-noise electronics
  • Non-linear circuits and systems


  • PhD, Electrical Engineering University of California, San Diego
  • MS, Electrical Engineering KAIST, Daejeon, South Korea
  • BS, Electronic Engineering Chung-Ang University, Seoul, South Korea


  • Senior Staff Scientist, Broadcom Corp., 2010-2011
  • Senior Engineer, Intel Corp., 2008-2010
  • "Team of The Year Award" for the DARPA SMART program, Teledyne Scientific Corp. (formerly Rockwell Scientific Corp.), 2010
  • "WAR Report" to Pentagon as a major achievement in DARPA program, 2007
  • Best Paper Award, IEEE Solid-State Circuit Society / Electron Device Society, Seoul Chapter, 2002
  • Korea Government Scholarship, KAIST, 1999-2001
  • First Place, Chung-Ang University, 1999


Representative Publications:

  • List of entire publications
  • Dong-Woo Kang, Kwang-Jin Koh, Gabriel M. Rebeiz, “A Ku-Band Tow-Antenna Four-Simultaneous Beams SiGe BiCMOS Phased Array Receiver,” IEEE Trans. on Microwave Theory and Technique (T-MTT), vol. 58, No. 4, pp. 771-780, April 2010.
  • Kwang-Jin Koh, Jason W. May, Gabriel M. Rebeiz, “A Millimeter-Wave (40-45 GHz) 16-Element Phased-Array Transmitter in 0.18-um SiGe BiCMOS technology,” IEEE J. Solid State Circuits (JSSC), vol. 44, no. 5, pp. 1498-1509, May 2009.
  • Kwang-Jin Koh, Gabriel M. Rebeiz, “An X- and Ku-Band 8-Element Phased Array Receiver in 0.18-um SiGe BiCMOS Technology,” IEEE J. Solid State Circuits (JSSC), vol. 43, no. 6, pp. 1306-1371, June 2008.
  • Kwang-Jin Koh, Gabriel M. Rebeiz, “A Q-Band Four-Element Phased-Array Receiver with Integrated Wilkinson Power Combiners in 0.18-um SiGe BiCMOS Technology,” IEEE Trans. on Microwave Theory and Technique (T-MTT), vol. 56, no. 9, pp. 2046-2053, September 2008.
  • Kwang-Jin Koh, Gabriel M. Rebeiz, “0.13-um CMOS Phase Shifters for X-, Ku- and K-band Phased Arrays,” IEEE J. Solid State Circuits (JSSC), vol. 42, no. 11, pp. 2535-2546, November 2007.
  • Kwang-Jin Koh, M-Y Park, C-S Kim, H-K Yu, “Subharmonically pumped CMOS Frequency Conversion (Up & Down) Circuits for 2GHz WCDMA Direct Conversion Transceiver”, IEEE J. Solid State Circuits (JSSC), vol. 39, No. 6, pp. 871-884, June 2004.


    Kwang-Jin Koh

  • (540) 231-7778
  • (540) 231-3362 (Fax)
  • 302 Whittemore (0111)
    Dept. of Electrical and Computer Engineering, Virginia Tech
    Blacksburg, VA 24061

  • Office: 613 Whittemore Hall



  MICS IAP Members