250 W HVHBT Doherty With 57% WCDMA Efficiency Linearized to -55 dBc for 2c11 6.5 dB PAR. - Craig Steinbeiser; Thomas Landon; Charles Suckling; James Nelson; Joe Delaney; John Hitt; Larry Witkowski; Gary Burgin; Rached Hajji; Oleh Krutko (IEEE J. Solid State Circuits, 2008)

High-Efficiency WCDMA Envelope Tracking Base-Station Amplifier Implemented With GaAs HVHBTs. - Jinseong Jeong; Donald F. Kimball; Myoungbo Kwak; Paul Draxler; Chin Hsia; Craig Steinbeiser; Thomas Landon; Oleh Krutko; Lawrence E. Larson; Peter M. Asbeck (IEEE J. Solid State Circuits, 2009)