Optimal surface adjustment of haystack antenna

Author

Zarghamee, M.S. ; Antebi, J.

Author_Institution

Simpson Gumpertz & Heger Inc., Arlington, MA, USA

fYear

1992

fDate

18-25 June 1992

Firstpage

854

Abstract

A procedure has been developed for the optimal adjustment of the primary reflector surface of an antenna. This procedure, when applied to the haystack radio telescopic antenna, involves the iterative adjustment of standoffs and shear studs, expanders, and cable guide offsets in the back of the panels. Optimal adjustments are selected to minimize the resulting surface RMS of the antenna, subject to the constraints of loss of precompression across expanders. It has been demonstrated that the procedure can be used effectively to improve the surface RMS of the haystack antenna to the goal of less than 200 micron (8 mil).<>

Keywords

optimisation; radiotelescopes; reflector antennas; cable guide offsets; expanders; haystack antenna; iterative adjustment; loss; optimal surface adjustment; precompression; primary reflector surface; radio telescopic antenna; shear studs; standoffs; surface RMS; Aluminum; Apertures; Azimuth; Cables; Error correction; Holography; Manufacturing; Solids; Structural rings; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221816

Filename

221816