ISSTT Proceedings

ISSTT Proceedings

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A Planar Quasi-Optical SIS Receiver for Array Applications

Authors:
Philip A. Stimson, Robert J. Dengler, Peter H. Siegel, Henry G. LeDuc
Abstract:
A novel planar, quasi-optical SIS receiver operating at 230 GHz is described. The receiver consists of a 2×5 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 here accurate measurements of the performance of single receiver elements. A mixer noise temperature of 89K DSB, receiver noise temperature of 156K DSB and conversion loss of 8 dB into a matched load have been obtained.
Categories:
SIS Receivers
Year:
1992
Session:
5
Full-text:
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Page Number(s):
235-242