Very low noise mixer at 115 GHz using a Mott diode cooled to 20 K
Very low noise mixer at 115 GHz using a Mott diode cooled to 20 K
- Author(s): Nigel Keen ; Robert Haas ; Eduard Perchtold
- DOI: 10.1049/el:19780558
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- Author(s): Nigel Keen 1 ; Robert Haas 1 ; Eduard Perchtold 1
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View affiliations
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Affiliations:
1: Max-Planck-Institut für Radioastronomie, Bonn, West Germany
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Affiliations:
1: Max-Planck-Institut für Radioastronomie, Bonn, West Germany
- Source:
Volume 14, Issue 25,
7 December 1978,
p.
825 – 826
DOI: 10.1049/el:19780558 , Print ISSN 0013-5194, Online ISSN 1350-911X
Measurements on a cooled resistive mixer are reported using a Mott-barrier diode cooled to 20 K, operating at 115 GHz and pumped with a local oscillator power as low as 150 μW. The mixer noise temperature of 200 K is not only the lowest reported for a resistive mixer above 90 GHz but indicates that some improvement in shot-noise models for resistive mixers is desirable.
Inspec keywords: mixers (circuits); semiconductor diodes; solid-state microwave circuits
Other keywords:
Subjects: Modulators, demodulators, discriminators and mixers; Solid-state microwave circuits and devices; Junction and barrier diodes
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