Analysis of radiating slots in a rectangular waveguide inhomogeneously loaded with a dielectric slab

Author

Joubert, Johan ; McNamara, Derek A.

Author_Institution

Dept. of Electr. & Electron. Eng., Pretoria Univ., South Africa

Volume

41

Issue

9

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

1212

Lastpage

1221

Abstract

Longitudinal and transverse radiating slots in the broad wall of a rectangular waveguide inhomogeneously loaded with a dielectric slab are analyzed. The formulation used involves the moment method solution of a pair of coupled integral equations containing the dyadic Green´s function of the inhomogeneously loaded waveguide. Both an edge-condition for the electric field in the slot aperture and the correct form of the ψ=constant waveguide mode are included in the analysis. Computed and measured results are compared to verify the theoretical analysis

Keywords

Green´s function methods; dielectric-loaded waveguides; integral equations; microwave antenna arrays; rectangular waveguides; waveguide theory; antenna arrays; broad wall; coupled integral equations; dielectric slab loaded waveguide; dyadic Green´s function; edge-condition; electric field; inhomogeneously loaded waveguide; longitudinal radiating slots; moment method solution; rectangular waveguide; slot aperture; transverse radiating slots; waveguide mode; Apertures; Dielectric constant; Loaded waveguides; Moment methods; Nonuniform electric fields; Radar antennas; Rectangular waveguides; Region 1; Scattering; Slabs;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.247747

Filename

247747