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Cryogenic filters for RFI protectionThe increased bandwidth and sensitivity of the DSN maser-based receiver systems along with the increase in worldwide microwave spectrum usage dictated the need for employing additional measures to protect these systems from RFI (radio frequency inerference). Both in-band and out-of-band microwave signals at the input of the Deep Space Network (DSN) traveling wave masers (TWM) can adversely affect the maser performance in a variety of ways. Filters fabricated from superconducting materials operating below their superconducting transition temperature (Tc) possess the most potential for providing the necessary RFI protection without degrading the system performance.
Document ID
19820003420
Document Type
Reprint (Version printed in journal)
Authors
Bautista, J. J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Petty, S. M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 10, 2013
Publication Date
October 15, 1981
Publication Information
Publication: The Telecommun. and Data Acquisition Rept.
Subject Category
Electronics And Electrical Engineering
Funding Number(s)
PROJECT: RTOP 310-20-66-50
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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