Title :
A high efficiency Chireix out-phasing power amplifier for 5GHz WLAN applications
Author :
Gründlingh, Johan ; Parker, Kevin ; Rabjohn, Gordon
Author_Institution :
IceFyre Semicond., Ottawa, Ont., Canada
Abstract :
This paper describes the design methodology and presents measured results for a 5GHz Chireix out-phasing power amplifier. The outputs of two high efficiency amplifiers operating in class F are combined using a lossless combiner. A novel implementation of the class F output tuning networks and combiner using bond wires is also described. To our knowledge, this is the most efficient 802.11a amplifier ever reported.
Keywords :
circuit tuning; microwave power amplifiers; wireless LAN; 5 GHz; 802.11a amplifier; Chireix power amplifier; LINC amplifiers; WLAN applications; bond wires; class F amplifier; design methodology; efficient power amplifier; lossless combiner; out-phasing power amplifier; output tuning networks; Capacitance; Circuits; High power amplifiers; Impedance; Power amplifiers; Power transmission lines; Radio frequency; Radiofrequency amplifiers; Voltage; Wireless LAN;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1338870
