A broad-band parametric amplifier

This paper describes a broad-band parametric amplifier potentially suitable, for example, as the front amplifier in the ground station receiver of advanced satellite communication systems. A single stage with l0db gain at 4 GHZ has given 20% bandwidth to 033 dB points. The amplifier is capable of cr...

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Bibliographic Details
Published in:International journal of electronics 1968-04, Vol.24 (4), p.333-351
Main Authors: GITTINS, J. P., VOKES, J. C., WHITEHEAD, C. S.
Format: Article
Language:English
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Summary:This paper describes a broad-band parametric amplifier potentially suitable, for example, as the front amplifier in the ground station receiver of advanced satellite communication systems. A single stage with l0db gain at 4 GHZ has given 20% bandwidth to 033 dB points. The amplifier is capable of cryogenic operation for low noise performance and several stages have been cascaded for higher gain. A novel feature of this amplifier is that it employs an idler circuit with a double peaked response. This approach has led to the development of very simple broad-banding controls which can be adjusted under actual operating conditions even when the amplifiers are refrigerated.
ISSN:0020-7217
1362-3060
DOI:10.1080/00207216808938029