-B.S. degree in electronic engineering from the Seoul National University in 1981,
-M.S. degree in electrical engineering from the Korea Advanced Institute of Science and Technology in 1983,
-Ph.D in electrical engineering at the University of Texas at Austin in 1989
-1983~1986, Junior Research Engineer at Central Research Institute of Goldstar Inc.
- 1989~1990, Senior Research Engineer at Central Research Institute of Goldstar Precision Inc.
-1990~present, faculty member of the School of Electrical Engineering, Seoul National University.
Microwave Active/Passive Circuit Design, Antenna and Wave Propagation, Electromagnetic Field Numerical Analysis, Circuit theory