RESEARCH FIELD We are developing core microwave technology and its applications for advanced wireless communication in the next generation. (1) Microwave semiconductor devices and related circuits. (Low-distortion, High-efficiency, Wideband, MMIC) (Details : File_p1, File_p2, File, File) (2) RF modules for UWB system.(Antenna, Filter, Balun, Group delay compensator) (Details : File, File, File, File, File) (3) EM-device co-simulation technique.(Finite-difference time-domain analysis) (Details : File_p1, File_p2, File_p3) (4) Quantum effect optical and microwave devices.(Quantum wire, Nano-structure) Recent Publications