DocumentCode
1999031
Title
Automatic calibration of a direct upconversion transmitter
Author
Craninckx, Jan ; Donnay, S.
Author_Institution
IMEC, Leuven, Belgium
fYear
2003
fDate
10-13 Aug. 2003
Firstpage
249
Lastpage
252
Abstract
This paper presents a novel method to measure and compensate the analog imperfections in a direct upconversion transmitter. The RF output spectrum is downconverted back to baseband frequencies by re-using the transmit mixer. Errors in the up- and downconversion process are now correlated, and the required measurements and mathematics are presented to extract estimates for the errors that cause imperfect image rejection and carrier feedthrough.
Keywords
calibration; frequency convertors; frequency measurement; mixers (circuits); radio transmitters; RF output spectrum; automatic calibration; baseband frequency; direct upconversion transmitter; downconversion process; transmit mixer; Baseband; Calibration; Circuits; Computer hacking; Error correction; Feedback; Local oscillators; Mathematics; Radio frequency; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Radio and Wireless Conference, 2003. RAWCON '03. Proceedings
Print_ISBN
0-7803-7829-6
Type
conf
DOI
10.1109/RAWCON.2003.1227939
Filename
1227939
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