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Strut shaping of 34m beam waveguide antenna for reductions in near-field RF and noise temeperature

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dc.contributor.author Khayatian, Behrouz
dc.contributor.author Hoppe, Daniel J.
dc.contributor.author Britcliffe, Michael J.
dc.contributor.author Gama, Eric
dc.date.accessioned 2013-07-22T15:36:43Z
dc.date.available 2013-07-22T15:36:43Z
dc.date.issued 2012-07-08
dc.identifier.citation IEEE International Symposium on Antennas and Propagation, Chicago, Illinois, July 8-14, 2012 en_US
dc.identifier.clearanceno 11-5579
dc.identifier.uri http://hdl.handle.net/2014/43404
dc.description.abstract Struts 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. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject reflector en_US
dc.subject struts en_US
dc.subject shaping en_US
dc.subject noise temperature en_US
dc.subject near field en_US
dc.subject RF exposure en_US
dc.title Strut shaping of 34m beam waveguide antenna for reductions in near-field RF and noise temeperature en_US
dc.type Preprint en_US


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