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A planar quasi-optical SIS receiverA planar, quasi-optical SIS receiver operating at 230 GHz is described. The receiver consists of a 2 x 5 array of half wave dipole antennas with ten niobium-aluminum oxide-niobium SIS junctions on a quartz dielectric-filled parabola. The 1.4 GHz intermediate frequency is coupled from the mixer via coplanar strip transmission lines and 4:1 balun transformers. The receiver is operated at 4.2 K in a liquid helium immersion cryostat. We report accurate measurements of the performance of single receiver elements. A mixer noise temperature of 89 K DSB, receiver noise temperature of 156 K DSB, and conversion loss of 3 dB into a matched load have been obtained.
Document ID
19930068232
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Stimson, Philip A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Dengler, Robert J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Leduc, Henry G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cypher, Scott R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Siegel, Peter H.
(JPL Pasadena, CA, United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1993
Publication Information
Publication: IEEE Transactions on Microwave Theory and Techniques
Volume: 41
Issue: 4
ISSN: 0018-9480
Subject Category
Electronics And Electrical Engineering
Accession Number
93A52229
Distribution Limits
Public
Copyright
Other

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