Title :
Second harmonic reduction in broadband HF/VHF/UHF class E RF power amplifiers
Author :
Narendra, Kumar ; Mediano, Arturo ; Anand, Lokesh ; Prakash, Chacko
Author_Institution :
Motorola Technology, Malaysia
Abstract :
Class E amplifier offers high efficiency approaching 100% for ideal case. This paper describes a topology to reduce second harmonic in a broadband parallel circuit class E power amplifier (PA). Drain efficiency > 60% and second harmonic < 40dBm across wide bandwidth (134–174MHz) is shown at power operation more than 5.5W.
Keywords :
Broadband amplifiers; Circuit topology; Hafnium; High power amplifiers; Power amplifiers; Power system harmonics; Radio frequency; Radiofrequency amplifiers; Signal processing; VHF circuits;
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.2010.5517143
