Research Activities in RF and
Microwave Technologies
at RFIC Center of Kwangwoon University
Jong-Chul Lee: Dept. of Radio Science and Engineering, Kwangwoon
University, Seoul 139-701, Korea. (TEL) +82-2-940-5203 (FAX) +82-2-918-6381
(E-Mail) jclee@kw.ac.kr (URL) http://oemic.kw.ac.kr
Jin-Joo Choi:
Dept. of Radio Science and Engineering,
Kwangwoon University, Seoul 139-701, Korea. (TEL) +82-2-940-5298 (FAX)
+82-2-916-9270 (E-Mail)
jinchoi@kw.ac.kr (URL) http://mpm21.kw.ac.kr
Jong-Heon Kim: Dept. of Radio Science and Engineering, Kwangwoon
University, Seoul 139-701, Korea. (TEL) +82-2-940-5197 (FAX) +82-2-916-8014 (E-Mail) jhkim@kw.ac.kr (URL) http://srslab.gwu.ac.kr
In this presentation, recent
research activities at the RFIC Center of Kwangwoon University are introduced.
Among lots of research results, tunable devices applications of ferroelectric
material using BaSrTiO3, intermodulation
and noise suppression of a linearized, low-noise hybrid microwave amplifier,
and a highly efficient Doherty feedfoward linear power amplifier for W-CDMA
base-station applications are discussed in detail.
Short
Biography
Jong-Chul
Lee: Jong-Chul Lee
is now an Associate Professor in the Dept. of Radio Sci. and Eng., Kwangwoon
University. Before he joined the University in 1996, he was a senior researcher
in Photonic Devices Lab., Hyundai Electronics Ind. Co., Ltd., Korea where he
was involved in the development of several high speed laser diodes and photo
diodes, and transmitter/receiver modules. He is also serving as a Project
Director at ITRC RFIC Center, Kwangwoon University, which is funded by the
Ministry of Information and Communication since Aug. 2000. He is a Guest
Professor in the Dept. of Electronics and Communication at Harbin Institute of
Technology since December 2001. He was a Visiting Scholar at the Dept. of
Electrical and Computer Eng., Univ. of California, San Diego from Dec. 2002 to
Feb. 2004. He has authored and co-authored over 80 papers in international
conference and journals. His research interests include Optoelectronics,
RF-Photonics, RF MEMS, RF Application for Ferroelectric Materials,
Millimeter-wave Passive and Active Devices, MMIC and OEMIC. He is a member of
IEEE, IEE, KEES, and KITS.
Jin-Joo Choi:
Jin-Joo Choi
received the B.S. degree in physics from Seoul National University, Seoul,
Korea, in 1983, the M.S. degree in physics from Georgia State University,
Atlanta, in 1985, and the Ph.D. degree in nuclear engineering from the
University of Michigan, Ann Arbor, in 1991. In 1991, he joined the Vacuum
Electronics Branch, Electronic Science and Technology Division, U.S. Naval
Research Laboratory, Washington, DC. His work at NRL was on the development of
high power millimeter wave gyro-amplifiers for EW and radar applications. In
1997, he moved to Kwangwoon University, Seoul, Korea where he is currently
associate professor of school of Electronics Engineering. His research
interests include high power vacuum electronics, passive and active solid state
devices.
Jong-Heon Kim: Jong Heon Kim received the B.S.
degrees in electronic communication engineering from Kwangwoon Univ. in 1984,
the M.S. degree in electronic engineering from Ruhr Univ. Bochum, Germany, in
1990, and the Ph. D. degree in electronic engineering from Dortmund Univ.,
Germany, in 1994. Since March 1995, he is professor in the Dept. of Radio
Science and Engineering at Kwangwoon Univ., Seoul, Korea. He is also a
technical advisor at TelASIC, LA, USA and a research associate at Simon Fraser
University, Burnaby, Canada, working advanced techniques for power amplifiers
for wireless industry. His current interests are high efficient linear power
amplifier design for wireless and satellite communications application.