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  • submillimeter heterodyne systems  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 2 (1981), S. 915-924 
    ISSN: 1572-9559
    Keywords: submillimeter heterodyne systems ; Schottky barrier mixers ; cryogenic cooling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report here the first results obtained by cooling a submillimeter quasioptical mixer, utilizing a Schottky diode in a corner reflector mixer structure. Measurements have been carried out at a wavelength of 434 microns. The diode inverse slope parameter Vo at low current decreases by a factor of 3 upon cooling to 50 K while the minimum system noise temperature of 5600 K (SSB), including the IF contribution, demonstrates a reduction of approximately 40% from the ambient temperature value. We also report improved system noise temperatures at 184 μm and 119 μm wavelengths of 38000 K and 64000 K (SSB), respectively.
    Type of Medium: Electronic Resource
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