A multipole analysis of a dielectric loaded coaxial rectangular waveguide

Author

Mohamed, Magdy Z. ; Jarem, John M.

Author_Institution

Dept. of Electr. & Comput. Eng., Alabama Univ., Huntsville, AL, USA

Volume

40

Issue

3

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

482

Lastpage

494

Abstract

A multipole analysis of a coaxial rectangular waveguide whose inner conductor is circular is made in order to determine the TE and TM modes of the system. The analysis is based on using multipole (dipole, quadrupole etc.) electric and magnetic current sources to generate field solutions in the waveguide. These solutions are used to match the electromagnetic boundary condition in a homogeneous coaxial rectangular waveguide and to determine the TE and TM eigenvalues of the waveguide system. Eigenvalue results are compared with results of the generalized spectral domain method and to eigenvalue results for a ridged waveguide. Propagation in a coaxial rectangular waveguide is also studied when the coaxial rectangular waveguide is loaded with lossy inhomogeneous dielectric material. A variational formula is used to relate the TEM, TE, and TM modes of an empty coaxial rectangular waveguide to the propagation in the loaded inhomogeneous dielectric waveguide

Keywords

dielectric-loaded waveguides; eigenvalues and eigenfunctions; rectangular waveguides; waveguide theory; TE mode; TEM; TM modes; coaxial rectangular waveguide; dielectric loaded; eigenvalues; electromagnetic boundary condition; lossy inhomogeneous dielectric material; multipole analysis; propagation; variational formula; Coaxial components; Conductors; Dielectrics; Eigenvalues and eigenfunctions; Electromagnetic waveguides; Loaded waveguides; Magnetic analysis; Magnetic domains; Rectangular waveguides; Tellurium;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.121723

Filename

121723