NDLI: Space station Ku-band antenna performance degradation due to solar panel scattering interference

Content Provider	IEEE Xplore Digital Library
Author	Hwu, S.U. Johnson, L.A. Elmore, J.D. Lu, B.P. Fournet, J.S. Panneton, R.J. Ngo, J.C. Arndt, G.D. Bourgeois, B.A.
Copyright Year	1994
Description	Author affiliation: Lockheed Eng. & Sci. Co., Houston, TX, USA (Hwu, S.U.; Johnson, L.A.; Elmore, J.D.; Lu, B.P.; Fournet, J.S.)
Abstract	The space station Ku-band reflector antenna performance degradation due to solar panel scattering interference is analyzed. To characterize the scattering properties of the space station solar array panels, a series of radar cross section (RCS) scattering measurements were performed at Ku-band frequencies. The blockage effects of structures to a reflector antenna are traditionally modeled using "null-field hypothesis". The reflection and diffraction effects from the blocking structure are roughly approximated. The scattered fields from the blocking plate are accurately calculated using the geometrical theory of diffraction (GTD). The plate reflected fields, edge diffracted fields, and corner diffracted fields are all included. To verify the analytical model, measurements were performed. It was shown from computation and experiment that the solar panel scattering interference causes main lobe gain decrease and sidelobe gain increase on the sum mode patterns, as well as, null position shift and null depth decrease on the difference mode patterns.
Starting Page	1346
Ending Page	1350
File Size	458845
Page Count	5
File Format	PDF
ISBN	078031820X
DOI	10.1109/GLOCOM.1994.512999
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-11-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space stations Degradation Radar scattering Diffraction Reflector antennas Interference Performance evaluation Performance analysis Radar cross section Antenna measurements
Content Type	Text
Resource Type	Article

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