Doherty Feed-Forward Amplifier Performance Using a Novel Crest Factor Reduction Technique
This letter describes a novel iterative crest factor reduction (CFR) technique applied to a Doherty feedforward linear power amplifier (DFFLPA). This novel CFR technique is based on repeated peak cancellations and uses a scaling factor to reduce complexity. According to our results, only three itera...
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Published in | IEEE microwave and wireless components letters Vol. 17; no. 1; pp. 82 - 84 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York, NY
IEEE
01.01.2007
Institute of Electrical and Electronics Engineers |
Subjects | |
Online Access | Get full text |
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Summary: | This letter describes a novel iterative crest factor reduction (CFR) technique applied to a Doherty feedforward linear power amplifier (DFFLPA). This novel CFR technique is based on repeated peak cancellations and uses a scaling factor to reduce complexity. According to our results, only three iterations result in over 4-dB reduction for a two carrier WCDMA signal. Experimental results demonstrate that the proposed algorithm was able to enhance the DFFLPA system efficiency from 11.5% to 18.3% |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1531-1309 1558-1764 |
DOI: | 10.1109/LMWC.2006.887287 |