DocumentCode
1420083
Title
Distortion and its compensation in a varactor-controlled frequency modulator
Author
Otala, M.
Author_Institution
University of Oulu, Department of Electrical Engineering, Oulu, Finland
Volume
117
Issue
2
fYear
1970
fDate
2/1/1970 12:00:00 AM
Firstpage
338
Lastpage
342
Abstract
The nonlinearity of the voltage-frequenc characteristic of a frequency modulator is a factor of primary importance when designing, for example, high-quality modulators for large-capacity microwave links. The nonlinearities of a varactor-controlled oscillator are derived. A theory of various distortion-conpensation circuits is developed. Distortion compensation is applied to push-pull modulator, and 1800¿2700-channel radio links, are shown.
Keywords
electric distortion; modulators;
fLanguage
English
Journal_Title
Electrical Engineers, Proceedings of the Institution of
Publisher
iet
ISSN
0020-3270
Type
jour
DOI
10.1049/piee.1970.0069
Filename
5249033
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