Title :
A novel broadband power amplifier architecture for high efficiency and high linearity applications
Author :
Alidio, R.I. ; Lee, Wei-Jen ; Gummalla, A. ; Achour, M.
Author_Institution :
Rayspan Corporation, San Diego, United States
Abstract :
A novel and simple architecture for improving efficiency, bandwidth and linearity at backed-off RF power is presented. It is accomplished by a distributed amplifier with proper turn on and off of the transistor devices via an RF detector. A MMIC prototype was designed and fabricated using a GaAs HBT process to verify this efficient, linear and broadband PA architecture and it measured 3% EVM and 24–25% PAE at 19.6dBm from 2.3GHz to 2.7GHz using a 54Mbps 64QAM OFDM modulation signal.
Keywords :
Bandwidth; Broadband amplifiers; Detectors; Distributed amplifiers; High power amplifiers; Linearity; MMICs; Prototypes; Radio frequency; Radiofrequency amplifiers;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5518101
