DocumentCode
1402037
Title
A GSM Power Amplifier Directly-Powered From a DC-DC Power Converter
Author
Tao, Chengwu ; Fayed, Ayman A.
Author_Institution
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Volume
22
Issue
1
fYear
2012
Firstpage
38
Lastpage
40
Abstract
A commercial off-the-shelf GSM PA powered directly from a DC-DC converter is presented. The converter is implemented in 0.35 μm CMOS and employs frequency hopping with phase chopping to eliminate spurious noise. Measurement results demonstrate elimination of spurs, allowing an incompliant GSM PA that is violating the limits of the GSM spectral mask by 9.3 dB to be brought back to compliance without additional filtering or linear regulation between the converter and the PA.
Keywords
CMOS analogue integrated circuits; DC-DC power convertors; cellular radio; power amplifiers; CMOS; DC-DC power converter; GSM power amplifier; GSM spectral mask; commercial off-the-shelf GSM PA; frequency hopping; phase chopping; size 0.35 mum; Frequency conversion; Frequency shift keying; GSM; Noise; Power generation; Switches; Buck converters; DC-DC converters; power amplifiers; switching regulators;
fLanguage
English
Journal_Title
Microwave and Wireless Components Letters, IEEE
Publisher
ieee
ISSN
1531-1309
Type
jour
DOI
10.1109/LMWC.2011.2176477
Filename
6107588
Link To Document