Title :
A Class-F Power Amplifier With CMRC
Author :
Chen, Shichang ; Xue, Quan
Author_Institution :
State Key Labs. of Millimeter Waves, City Univ. of Hong Kong, Kowloon Tong, China
Abstract :
This letter presents a novel harmonic control circuit (HCC) for class-F power amplifiers (PAs). A compact microstrip resonant cell (CMRC) is inserted between the transistor and the output fundamental matching network. Third harmonic open circuit condition and size reduction are achieved simultaneously. This scheme provides a straightforward and simple approach to design HCC. A class-F PA is designed and fabricated for demonstration. The measured maximum power-added efficiency (PAE) is 74% with 10 dB power gain near the 1 dB compression point.
Keywords :
power amplifiers; class-F power amplifier; compact microstrip resonant cell; efficiency 74 percent; gain 10 dB; harmonic control circuit; matching network; maximum power-added efficiency; third harmonic open circuit condition; transistor; Harmonic analysis; Integrated circuit modeling; Microstrip; Power transmission lines; Transistors; Transmission line measurements; Wireless communication; Class-F power amplifier (PA); compact microstrip resonant cell (CMRC); power-added efficiency (PAE); slow-wave effect;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2010.2091265
