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High-power dual-directional couplerWater-cooled coupler installed in S-band polarization diversity (SPD) cone is used to calibrate receiving-station relay. Coupler operates without arcing at 400 kw and permits accurate calibration of entire system below antenna feed horn. Device has good directivity, contributes less than 0.01 K to system noise temperature, and eliminates saturation of ground station and spacecraft receivers during high-power operation.
Document ID
19800000447
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Otoshi, T. Y. (Caltech)
Wallace, K. B. (Caltech)
Date Acquired
August 10, 2013
Publication Date
April 1, 1981
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 4
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
Report Number: NPO-14713
ISSN: 0145-319X
NPO-14713
Accession Number
80B10447
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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