DocumentCode
2686640
Title
A Very Low-Noise, Fixed-Tuned Mixer for 240-270 GHz
Author
Faber, M.T. ; Archer, J.W. ; Mattauch, R.J.
fYear
1985
fDate
4-6 June 1985
Firstpage
311
Lastpage
314
Abstract
A cryogenic, single-ended, fundamental frequency mixer is reported. The use of a small-area Schottky barrier diode (C/sub o/ = 4 fF) having low series resistance, together with a careful design and optimization, have yielded a very low-noise, broadband mixer which, when fixed-tuned and cooled to 20K, has a single-sideband noise temperature less than 400K for a local oscillator frequency between 242 and 272 GHz. At 266 GHz the mixer has only 6.4 dB of conversion loss and its SSB noise temperature is only 275K. This is the lowest noise temperature ever reported for a Schottky diode mixer in this frequency range.
Keywords
Acoustical engineering; Amplitude modulation; Cryogenics; Design optimization; Frequency; Local oscillators; Mixers; Schottky barriers; Schottky diodes; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1985 IEEE MTT-S International
Conference_Location
St. Louis, MO, USA
ISSN
0149-645X
Type
conf
DOI
10.1109/MWSYM.1985.1131971
Filename
1131971
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