ECE: Electrical & Computer Engineering
ECE Faculty

Kwang-Jin Koh

Kwang-Jin Koh

Office: Room 4443 Whittemore Hall
Mailing Address: 302 Whittemore (0111)
Virginia Tech
Blacksburg, VA 24061
Tel: (540) 231-7778
Fax: (540) 231-3362
vt.edu Email:kkoh@vt.edu

Title: Assistant Professor


Affiliated Research Groups

Wireless Microsystems Laboratory

Courses Taught

ECE5220 RFIC Technology and Design (2012 Spring)

Education

Ph.D., University of California San Diego, 2008
M.S., Korea Advanced Institute of Science & Technology (KAIST), 2001
B.S., Chung-Ang University (first place), Korea, 1999

Teaching Interests

RF, analog and millimeter-wave integrated circuits and systems
Mixed-mode integrated circuits and systems
Low-power low-noise electronics

Research Interests

Low power RF, analog and mixed-mode ICs
Millimeter-wave circuits and systems
High-efficient on-chip power management ICs
Tera-hertz electronics
Emerging technology combing IC, antenna and MEMS technique

Experience and Recognition

Broadcom Corp., Senior staff scientist (RF/analog IC design), 2010-2011
Intel Corp., Senior analog IC design engineer, 2008-2010
Best Design Team of The Year Award, Teledyne (formerly, Rockwell), 2010
WAR Report to Pentagon by DARPA as a critical achievement in 2007
Best Paper Award, IEEE Solid-State Circuit Society / Electron Device Society, Seoul Chapter, 2002

Technology Transfer

The following designs have been successfully demonstrated and transferred, at the request of DARPA, to US Navy, Raytheon, Lockheed Martin, Boeing, Teledyne Scientific Corp., ViaSat and Cobham for the development of advanced phased-array systems.
16-Element 44 GHz phased-array transmitter in 0.18-um SiGe BiCMOS technology
8-Element 6-18 GHz phased-array receiver in 0.18-um SiGe BiCMOS technology

Selected 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.