DocumentCode
1353066
Title
Linearization of Concurrent Dual-Band Power Amplifier Based on 2D-DPD Technique
Author
Bassam, Seyed Aidin ; Chen, Wenhua ; Helaoui, Mohamed ; Ghannouchi, Fadhel M. ; Feng, Zhenghe
Author_Institution
iRadio Lab., Univ. of Calgary, Calgary, AB, Canada
Volume
21
Issue
12
fYear
2011
Firstpage
685
Lastpage
687
Abstract
This letter reports a two-dimensional digital predistortion technique to compensate for the nonlinearity of a concurrent dual band PA. Two different multi-carrier WCDMA signals with more than 1 GHz frequency spacing are concurrently employed to drive the PA and verify the linearization performance. Experimental results show that the proposed technique bounds the adjacent channel power ratio to lower than -46 dBc, which is more than 12 dB improvement for both bands concurrently.
Keywords
UHF power amplifiers; code division multiple access; 2D-DPD technique; adjacent channel power ratio; concurrent dual-band power amplifier; linearization performance; multi-carrier WCDMA signal; two-dimensional digital predistortion technique; Baseband; Dual band; Mathematical model; Multiaccess communication; Predistortion; Spread spectrum communication; Transmitters; Concurrent dual-band PA; digital predistortion (DPD); multi-carrier WCDMA;
fLanguage
English
Journal_Title
Microwave and Wireless Components Letters, IEEE
Publisher
ieee
ISSN
1531-1309
Type
jour
DOI
10.1109/LMWC.2011.2170669
Filename
6051495
Link To Document