DocumentCode
1766230
Title
Two-dimensional crest factor reduction for performance improvement of concurrent dual-band power amplifiers
Author
Xiaofan Chen ; Silong Zhang ; Wenhua Chen
Author_Institution
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Volume
49
Issue
18
fYear
2013
fDate
August 29 2013
Firstpage
1163
Lastpage
1165
Abstract
A two-dimensional crest factor reduction (2D-CFR) is proposed to improve the performance of concurrent dual-band power amplifiers (PAs). Experimental measurements are performed on a 1.9-2.6 GHz concurrent dual-band LTE PA by using the proposed 2D-CFR and conventional 1D-CFR, respectively. Measured results after 2D digital predistortion (2D-DPD) show that the output power with the proposed 2D-CFR is increased by 10%, the efficiency is improved from 28.1 to 30.6% and the error vector magnitude is reduced from 3.46 to 2.67%, indicating a significant performance improvement.
Keywords
Long Term Evolution; UHF power amplifiers; 1D-CFR; 2D digital predistortion; 2D-CFR; 2D-DPD; concurrent dual-band LTE PA; concurrent dual-band power amplifiers; efficiency 28.1 percent to 30.6 percent; error vector magnitude; frequency 1.9 GHz to 2.6 GHz; two-dimensional crest factor reduction;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2013.1650
Filename
6587658
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