DocumentCode
964504
Title
Parametric upconvertor as low-noise i.f. amplifier for microwave mixers
Author
Downing, O.J. ; Bennewitz, F.O.M. ; Gardiner, J.G.
Author_Institution
Postgraduate School of Electrical & Electronic Engineering, University of Bradford, Bradford, UK
Volume
10
Issue
8
fYear
1974
Firstpage
138
Lastpage
140
Abstract
New equations for the gain and noise performance of v.h.f. parametric upconvertors are presented and applied to the design and performance prediction of a practical upper-sideband circuit intended for application as an i.f. amplifier for microwave mixers. The measured noise figure of 0.67 (±0.1) dB at 9.5 dB gain is shown to correlate with the calculated figure, and to be close to the limiting value of around 0.5 dB at this frequency.
Keywords
frequency convertors; intermediate-frequency amplifiers; mixers (circuits); noise; parametric amplifiers; VHF; frequency convertors; gain; intermediate frequency amplifiers; mixers (circuits); noise; parametric amplifiers;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19740106
Filename
4245063
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