S. Yokokawa

A 174 W high-efficiency GaN HEMT power amplifier for W-CDMA base station applications

K. Joshin, T. Kikkawa, Hiroyuki Hayashi et al. · 2004 · 96 citations

Wide-bandgap Semiconductor, Drain Supply Voltage, Electrical Engineering +9

An over 200-W output power GaN HEMT push-pull amplifier with high reliability

T. Kikkawa, Toru Maniwa, Hiroyuki Hayashi et al. · 2004 · 71 citations

Wide-bandgap Semiconductor, Electrical Engineering, W-cdma Systems +12

A flip-chip MMIC design with coplanar waveguide transmission line in the W-band

Tetsuya Hirose, Kozo Makiyama, Katsuji Ono et al. · IEEE Transactions on Microwave Theory and Techniques · 1998 · 55 citations

Electrical Engineering, Flip-chip Monolithic Millimeter-wave, Engineering +13

76 GHz flip-chip MMICs for automotive radars

T. Shimura, Yoji Kawasaki, Yoji Ohashi et al. · 2002 · 31 citations

Radar, Millimeter Wave Technology, Engineering +10

A 36 W CW AlGaN/GaN-power HEMT using surface-charge-controlled structure

T. Kikkawa, Miyuki Nagahara, T. Kimura et al. · 2003 · 23 citations

Electrical Engineering, Engineering, Gan Cap Layer +11