A 3.2-V operation single-chip dual-band AlGaAs/GaAs HBT MMIC power amplifier with active feedback circuit technique. - Kazuya Yamamoto; Satoshi Suzuki; Kazutomi Mori; Tomoyuki Asada; Toshio Okuda; Akira Inoue; Takeshi Miura; Kenichiro Chomei; Ryo Hattori; Masahide Yamanouchi; Teruyuki Shimura (IEEE J. Solid State Circuits, 2000)