Title :
Investigation into RF feedback for improving the efficiency-linearity trade-off in power amplifiers
Author :
Tian, Yun-Jia ; Haigh, David G.
Author_Institution :
Imperial Coll., London
Abstract :
Power amplifiers are important blocks in communication systems and their efficiency and linearity are critical performance parameters. In this paper, we present a preliminary investigation into RF feedback systems designed to improve the efficiency-linearity trade-off for power amplifiers. We demonstrate very large potential improvement in trade-off due to feedback and significant actual improvement. In order to fully realise the potential improvement, further work needed is outlined.
Keywords :
feedback; linearisation techniques; radiofrequency amplifiers; RF feedback; communication system; efficiency-linearity trade-off; power amplifier; Circuit simulation; FETs; Feedback circuits; Linearity; Microwave amplifiers; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Transfer functions;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429460
