Since 1973, he has been with the Department of Electrical Engineering, National Taiwan University, where he is a Professor.
He is the Director of the Communication Research Center at NTU from 1995 to 2000. He was the Chairman of the Graduate Institute of Communication Engineering at NTU from 1997 to 2000.
He received the Distinguished Research Award from the National Science Council, Republic of China, in 1992.
His main research interests are in microstrip antennas, radar scattering, microwave imaging, and wireless communication.