A Double-Edge-Diffraction Gaussian-Series Method for Efficient Physical Optics Analysis of Dual-Shaped-Reflector Antennas

Author

Hay, Stuart G.

Author_Institution

Commonwealth Sci. & Ind. Res. Organ., ICT Centre, Epping, NSW, Australia

Volume

53

Issue

8

fYear

2005

Firstpage

2597

Lastpage

2610

Abstract

The paper describes an efficient method for evaluating the physical-optics radiation pattern of a dual-shaped-reflector antenna. The method consists in representing the integrands of the four- and two-dimensional (4-, 2-D) field integrals as Gaussian series and then analytically integrating each term, including the effects of diffraction by the edges of both reflectors. The method is applied to a multibeam antenna and compared to numerical integration. Similar radiation patterns are obtained but with the new method significantly reducing the computation time.

Keywords

antenna radiation patterns; geometrical theory of diffraction; multibeam antennas; physical optics; reflector antennas; Gaussian-series method; double-edge-diffraction method; dual-shaped-reflector antenna; geometrical theory of diffraction; multibeam antenna; physical-optics radiation pattern; Antenna radiation patterns; Antenna theory; Feeds; Gaussian processes; Interpolation; Pattern analysis; Physical optics; Physical theory of diffraction; Reflector antennas; Two dimensional displays; Gaussian beams; geometrical theory of diffraction; multibeam antennas; physical optics; reflector antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.851855

Filename

1492611