L/S-band 140-W push-pull power AlGaAs/GaAs HFET's for digital cellular base stations. - Isao Takenaka; Kouji Ishikura; Hidemasa Takahashi; Kazunori Asano; Junko Morikawa; K. Satou; K. Kishi; Kouichi Hasegawa; K. Tokunaga; Fumiaki Emori; Masaaki Kuzuhara (IEEE J. Solid State Circuits, 1999)