Analysis of waveguide-fed thick radiating rectangular windows in a ground plane

Author

Das, B.N. ; Chakraborty, A. ; Gupta, S.

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India

Volume

138

Issue

2

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

142

Lastpage

146

Abstract

A moment method analysis of a radiating window in an infinite conducting plane excited by a rectangular waveguide is presented. The boundary conditions at the two interfaces are derived taking the effect of window thickness into account. The application of the moment method, using entire domain basis functions, transforms the integral equations representing the boundary conditions into matrix equations. The reflection coefficient seen by the feed waveguide is evaluated from amplitude coefficients determined from matrix inversion. Excellent agreement between theoretical and experimental values of complex reflection coefficient is obtained.

Keywords

antenna feeders; antenna theory; rectangular waveguides; waveguide antennas; amplitude coefficients; boundary conditions; entire domain basis functions; feed waveguide; ground plane; infinite conducting plane; integral equations; matrix equations; matrix inversion; moment method analysis; open-ended waveguide; radiating window; rectangular waveguide; rectangular windows; reflection coefficient; waveguide antennas; window thickness;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings H

Publisher

iet

ISSN

0950-107X

Type

jour

Filename

68347