Analysis of slot coupling in a radial line slot antenna for DBS reception

Author

Hirokawa, J. ; Ando, M. ; Goto, N.

Author_Institution

Dept. of Electr. & Electron., Tokyo Inst. of Technol., Japan

Volume

137

Issue

5

fYear

1990

fDate

10/1/1990 12:00:00 AM

Firstpage

249

Lastpage

254

Abstract

A radial line slot antenna (RSLA) is a nonresonant multimode waveguide slotted array. The slot coupling to the radial waveguide in this antenna is analysed. A parallel plate waveguide with a periodic boundary condition is used to simulate a sectoral region of the circular aperture in a RLSA. A set of integral equations for the fields in the slot is derived, based on the field equivalence theorem, and is solved numerically by Galerkin´s method. Theoretical results effectively express the measured effects of the various antenna design parameters on the slot coupling.

Keywords

Green´s function methods; antenna theory; boundary-value problems; direct broadcasting by satellite; integral equations; microwave antenna arrays; receiving antennas; satellite antennas; waveguide antennas; DBS reception; Galerkin´s method; boundary value problem; circular aperture; direct broadcast by satellite; dyadic Green´s functions; field equivalence theorem; integral equations; nonresonant multimode waveguide slotted array; numerical solution; parallel plate waveguide; periodic boundary condition; radial line slot antenna; radial waveguide; slot coupling;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings H

Publisher

iet

ISSN

0950-107X

Type

jour

Filename

58827