New approximate method for computing the radiation properties of reflector antennas: application to cylindrical reflector antennas

Author

van Splunter, J.M. ; Blok, H.

Author_Institution

Delft University of Technology, Department of Electrical Engineering, Laboratory of Electromagnetic Research, Delft, Netherlands

Volume

126

Issue

7

fYear

1979

fDate

7/1/1979 12:00:00 AM

Firstpage

652

Lastpage

657

Abstract

A new approximate method for computing the current distribution on reflector antennas is presented. It employs the modified Kirchhoff approximation and leads to a vector integral equation of the second kind for the current distribution. The integral in this integral equation can be interpreted as a current due to the curvature of the reflector surface. The method is applied to a cylindrical parabolic and a cylindrical corner reflector antenna. The integral equation is solved numerically, and the computed current distributions and directive gains are compared with those obtained by solving the exact integral equation as well as with the results that follow from the application of the physical-optics approximation.

Keywords

antenna radiation patterns; antenna theory; current distribution; integral equations; reflector antennas; current distribution; cylindrical corner reflector antenna; cylindrical parabolic; cylindrical reflector antennas; directive gains; modified Kirchhoff approximation; radiation patterns computation; radiation properties; reflector antennas; vector integral equation;

fLanguage

English

Journal_Title

Electrical Engineers, Proceedings of the Institution of

Publisher

iet

ISSN

0020-3270

Type

jour

DOI

10.1049/piee.1979.0148

Filename

5252911