DocumentCode
1458851
Title
Calibration scheme for LINC transmitter
Author
Zhang, X. ; Larson, L.E. ; Asbeck, P.M.
Author_Institution
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Volume
37
Issue
5
fYear
2001
fDate
3/1/2001 12:00:00 AM
Firstpage
317
Lastpage
318
Abstract
A simple calibration scheme for correction of the path imbalance in a LINC transmitter is presented. By properly exchanging two LINC vector components and controlling a downconversion loop. The gain and phase imbalance are characterised by the baseband DSP/SCS. The error effects of the imbalance are compensated by introducing a pre-distortion term. Simulation results demonstrate that this scheme is sufficient to suppress the out-of-band spectrum for wireless communications
Keywords
calibration; mobile communication; optical links; optical transmitters; LINC transmitter; LINC vector components; baseband DSP/SCS; calibration scheme; downconversion loop; linear amplification with nonlinear components; mobile communication; out-of-band spectrum; path imbalanc; phase imbalance; pre-distortion term; wireless communications;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20010209
Filename
911977
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