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Design considerations for the beamwaveguide retrofit of a ground antenna stationA primary requirement of the NASA Deep Space Network (DSN) is to provide for optimal reception of very low signal levels. This requirement necessitates optimizing the antenna gain to the total system operating noise level quotient. Low overall system noise levels of 16 to 20 K are achieved by using cryogenically cooled preamplifiers closely coupled with an appropriately balanced antenna gain/spillover design. Additionally, high-power transmitters (up to 400 kW CW) are required for spacecraft emergency command and planetary radar experiments. The frequency bands allocated for deep space telemetry are narrow bands near 2.1 and 2.3 GHz (Ka-band), 7.1 and 8.4 GHz (X-band), and 32 and 34.5 GHz (Ka-band). In addition, planned operations for the Search for Extraterrestrial Intelligence (SETI) program require continuous low-noise receive coverage over the 1 to 10 GHz band. To summarize, DSN antennas must operate efficiently with low receive noise and high-power uplink over the 1 to 35 GHz band.
Document ID
19870018406
Document Type
Conference Paper
Authors
Veruttipong, T.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Withington, J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Galindo-Israel, V.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Imbriale, W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bathker, D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 13, 2013
Publication Date
February 1, 1987
Publication Information
Publication: Illinois Univ., Proceedings of the Antenna Applications Symposium held in Urbana, Illinois on 17-19 September 1986, Volume 2
Subject Category
Communications And Radar
Report/Patent Number
AD-P005411
Accession Number
87N27839
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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