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)

INGR Energy Efficiency Roadmap - 2022 Edition. - Brian Zahnstecher; Earl McCune; Doug Kirkpatrick; Rick Booth; Kirk Bresniker; Lin Nease; Anirban Bandyopadhyay; Bruce Nordman; Francesco Carobolante; Magnus Olsson; Emil Björnson; Laurence McGarry; et al. (FNWF, 2022)