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Low-noise 460 GHz waveguide Schottky mixer radiometer for radioastronomy

Low-noise 460 GHz waveguide Schottky mixer radiometer for radioastronomy

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© The Institution of Electrical Engineers
Published

We report measurements on a cryogenically cooled Schottky barrier diode mixer system at 460 GHz. The mixer and horn are electroformed in a single block, and the carcinotron local oscillator is coupled in through a polarisation diplexer. A double-sideband system noise temperature of 870 K was obtained at midband at 12 K ambient. The total RF/IF double-sideband conversion loss was 9.0 dB, measured at 295 K ambient.

Inspec keywords: solid-state microwave devices; radiometers; Schottky-barrier diodes; radioastronomical techniques; mixers (circuits)

Other keywords: carcinotron local oscillator; SMMW; low noise radiometer; RF/IF double-sideband conversion loss; Radioastronomy; double-sideband system noise temperature; cryogenically cooled Schottky barrier diode mixer system; polarisation diplexer; frequency 460 GHz; sub-mm-waves; single block mixer and horn; GHz 0460; 460 GHz waveguide Schottky mixer radiometer

Subjects: Junction and barrier diodes; Radioastronomical techniques and equipment; Radiotelescopes; Solid-state microwave circuits and devices; Detection of radiation (bolometers, photoelectric cells, i.r. and submillimetre waves detection); Photometry and radiometry; Photodetectors; Electrical instruments and techniques; Modulators, demodulators, discriminators and mixers

References

    1. 1)
      • N.J. Keen , K.-D. Mischerikow , G.A. Ediss , R. Engelhardt , E. Perchtold , M. Vester . Measurements with a Schottky-barrier waveguide mixer at 460 GHz. Infrared Phys. , 353 - 356
    2. 2)
      • M.J. Wengler , D.P. Woody , R.E. Miller , T.G. Phillips . A low noise receiver for millimeter and submillimeter wavelengths. Int. J. IR & MM Waves , 697 - 706
    3. 3)
      • S. Weinreb , D.L. Fenstermacher , R.W. Harris . Ultra-low-noise 1.2 to 1.7 GHz cooled GaAs FET amplifiers. IEEE Trans. , 849 - 853
    4. 4)
      • Goldsmith, P.F., Erickson, N.R.: `Waveguide submillimeter mixers', Proc. SPIE conference on instrumentation for sub-millimeter spectroscopy, December 1985, .
    5. 5)
      • D.H. Martin , E. Puplett . Polarized interferometric spectrometry for the millimetre and submillimetre spectrum. Infrared Phys. , 105 - 109
    6. 6)
      • Vester, M.: `Aufbau eines quasioptischen Diplexers/Kopplers für den Frequenzbereich 460-500 GHz', 1984, Diploma thesis, Institutfür Hochfrequenztechnik, Universität Erlangen-Nürnberg, FRG .
    7. 7)
      • G.A. Ediss . Dual-mode horns at millimetre and submillimetre wavelengths. IEE Proc. H, Microwaves, Ant. & Propag. , 215 - 218
    8. 8)
      • Keen, N.J.: `An overmoded calorimeter for millimetre- and sub-millimetre wavelengths', Proc. 5th intl. conf. on IR and MM waves, October 1980, , p. 211–212.
    9. 9)
      • MACOR: ‘Machinable glass ceramic’. Corning Glass Works, distributed by Duramic Products, Inc., NJ, USA.
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