Hosung Choo received his B.S. degree in Radio Science and Engineering from Hanyang University, Seoul in 1998 and his M.S. and Ph.D. degrees in Electrical and Computer Engineering from the University of Texas at Austin in 2000 and 2003, respectively. In September 2003, he joined the School of Electronic and Electrical Engineering in Hongik University, Seoul, Korea, where he is currently a professor. His principal area of research includes electrically small antennas for wireless communications, reader and tag antennas for RFID, on-glass and conformal antennas for vehicles and aircraft, and array antennas for GPS applications.