Design of a correcting plate for compensating the main reflector distortions of a dual shaped system

Author

Galindo-Israel, V. ; Rengarajan, S.R. ; Veruttipong, W. ; Imbriale, W.A.

Author_Institution

Jet Propulsion Lab., Pasadena, CA, USA

fYear

1993

fDate

June 28 1993-July 2 1993

Firstpage

246

Abstract

The authors present a method of synthesizing a correcting flat plate that compensates for the main reflector distortions of a dual shaped system. The dual shaped reflector system, synthesized for high gain, has a main reflector diameter of 32.8m (not including a noise shield). The time and space slowly varying surface distortions in the main reflector are due to gravitational and thermal effects and reduce the antenna gain. The correcting plate is nominally flat and part of a beam waveguide. It is designed by geometrical optics (GO) to be distorted so as to have a virtual point caustic for the GO rays reflected off the flat plate (in receiving mode).<>

Keywords

compensation; geometrical optics; reflector antennas; waveguide components; 32.8 m; beam waveguide; correcting flat plate; geometrical optics; gravitational effects; main reflector distortions; shaped reflector system; thermal effects; virtual point caustic; Computational geometry; Drives; Feeds; Interpolation; Laboratories; Noise shaping; Optical distortion; Polarization; Propulsion; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1993. AP-S. Digest

Conference_Location

Ann Arbor, MI, USA

Print_ISBN

0-7803-1246-5

Type

conf

DOI

10.1109/APS.1993.385358

Filename

385358