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Noise properties of balanced amplifier configurations

Published online by Cambridge University Press:  10 February 2011

E.E.M. Woestenburg
E.E.M. Woestenburg*
Affiliation:
ASTRON, The Netherlands Institute for Radio Astronomy, P.O. Box 2, 7990 AA Dwingeloo, The Netherlands. Phone:  + 31 521595100.
*
Corresponding author: E.E.M. Woestenburg Email: woestenburg@astron.nl
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Abstract

This paper analyzes the noise properties of balanced amplifier configurations in terms of noise waves and discusses the effect of various amplifier configurations on the noise and signal parameters. It shows how the noise generated in the load on the input coupler of a balanced amplifier deteriorates the amplifiers noise resistance parameter with respect to that of its component amplifiers. The properties of two new balanced amplifier configurations will be discussed, which enable the reduction or elimination of this deterioration.

Keywords

Balanced amplifierMicrowave amplifierLow noise amplifierNoise parametersNoise waves

Information

Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 3 , Issue 1 , February 2011 , pp. 67 - 75
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2011

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References

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