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Strut Shaping of 34m Beam Waveguide Antenna for Reductions in Near-Field RF and Noise TemeperatureStruts shaping of the NASA's Deep Space Network (DSN) 34m Beam Waveguide (BWG) antenna has been implemented to reduce near-field RF exposure while improving the antenna noise temperature. Strut shaping was achieved by introducing an RF shield that does not compromise the structural integrity of the existing structure. Reduction in the RF near-field exposure will compensate for the planned transmit power increase of the antenna from 20 kW to 80 kW while satisfying safety requirements for RF exposure. Antenna noise temperature was also improved by as much as 1.5 K for the low elevation angles and 0.5 K in other areas. Both reductions of RF near-field exposure and antenna noise temperature were verified through measurements and agree very well with calculated results.


Document ID
20150005733
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
hdl:2014/43404
Authors
Khayatian, Behrouz (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hoppe, Daniel J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Britcliffe, Michael J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Gama, Eric (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
April 16, 2015
Publication Date
July 8, 2012
Subject Category
Communications And Radar
Meeting Information
Meeting: IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting
Location: Chicago. IL
Country: United States
Start Date: July 8, 2012
End Date: July 14, 2012
Sponsors: National Academy of Sciences - National Research Council, International Union of Radio Science, Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
reflector
shaping
noise temperature
struts
near field
RF exposure

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