Title :
Analysis of buck-converters for efficiency enhancements in power amplifiers for wireless communication
Author :
Habler, F. ; Ellinger, Frank ; Carls, Jörg
Author_Institution :
Dresden Univ. of Technol., Dresden
fDate :
Oct. 29 2007-Nov. 1 2007
Abstract :
An analysis procedure is presented allowing the systematic optimisation of buck-converters, which are required for the efficiency enhancement of power amplifiers in back off mode. All relevant parasitics are included. Based on this model the performance of the envelope following and tracking approaches are investigated for common communication standards such as GSM, UMTS and WLAN. Efficiency enhancements of above 100% are shown.
Keywords :
DC-DC power convertors; power amplifiers; radiocommunication; radiofrequency amplifiers; back off mode; buck converters; power amplifiers; wireless communication; 3G mobile communication; DC-DC power converters; GSM; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Voltage; Wireless LAN; Wireless communication; DC-DC converters; Power amplifiers; efficiency; envelope following; envelope tracking; linearity; radio frequency (RF); transmitter;
Conference_Titel :
Microwave and Optoelectronics Conference, 2007. IMOC 2007. SBMO/IEEE MTT-S International
Conference_Location :
Brazil
Print_ISBN :
978-1-4244-0661-6
Electronic_ISBN :
978-1-4244-0661-6
DOI :
10.1109/IMOC.2007.4404339
