NDLI: Dsn 70-meter antenna x-band gain, phase, and pointing performance, with particular application for voyager 2 neptune encounter

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Dsn 70-meter antenna x-band gain, phase, and pointing performance, with particular application for voyager 2 neptune encounter

Content Provider	NASA Technical Reports Server (NTRS)
Author	Slobin, S. D. Bathker, D. A.
Copyright Year	1988
Description	The gain, phase, and pointing performance of the Deep Space Network (DSN) 70 m antennas are investigated using theoretical antenna analysis computer programs that consider the gravity induced deformation of the antenna surface and quadripod structure. The microwave effects are calculated for normal subreflector focusing motion and for special fixed-subreflector conditions that may be used during the Voyager 2 Neptune encounter. The frequency stability effects of stepwise lateral and axial subreflector motions are also described. Comparisons with recently measured antenna efficiency and subreflector motion tests are presented. A modification to the existing 70 m antenna pointing squint correction constant is proposed.
File Size	641293
Page Count	9
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890010982
Archival Resource Key	ark:/13960/t18m26k8g
Language	English
Publisher Date	1988-11-15
Access Restriction	Open
Subject Keyword	Communications And Radar Deep Space Network Pointing Control Systems Antenna Design Neptune Planet Focusing Superhigh Frequencies Noise Temperature Subreflectors Voyager 2 Spacecraft Microwaves Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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