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A 230-GHz radiometer system employing a second-harmonic mixerA radiometer system for use in the 1.3 mm region has been constructed and used for radio astronomical observations. A second-harmonic mixer employing a single Schottky diode downconverts the incident power to an IF frequency of about 1400 MHz. The measured double-sideband system noise temperature is 6000 K (noise figure = 13 dB) and the double-sideband mixer conversion loss is calculated to be 10 dB. The mixer is tunable over a range of at least 15 GHz.
Document ID
19770031420
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goldsmith, P. F.
(Bell Telephone Laboratories, Inc. Holmdel, N.J., United States)
Plambeck, R. L.
(California, University Berkeley, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
November 1, 1976
Publication Information
Publication: IEEE Transactions on Microwave Theory and Techniques
Volume: MTT-24
Subject Category
Electronics And Electrical Engineering
Accession Number
77A14272
Funding Number(s)
CONTRACT_GRANT: NSF GP-38585
CONTRACT_GRANT: NSF GP-30424X
CONTRACT_GRANT: NGL-05-003-272
CONTRACT_GRANT: N00014-69-A-0200-1003
Distribution Limits
Public
Copyright
Other

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