Analysis of horseshoe-shaped waveguide with dielectric in capacitance gap

Author

Yakovlev, Vadim V. ; Komarov, Vyacheslav V. ; Zheleznyak, Alexey R.

Author_Institution

Inst. of Radioeng. & Electron., Acad. of Sci., Moscow, Russia

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1616

Lastpage

1619

Abstract

The eigenparameters and eigenfields of the horseshoe-shaped waveguide (HSW) with a dielectric in the region of the capacitance gap are computed by a program based on a finite-element algorithm. The broadband coefficient in this transmission line may take on rather high values (greater than or equal to six). It is shown that the electric field of dominant and first high-order modes is concentrated in the dielectric. The HE₁ mode field is distributed more densely near the symmetry axis of the HSW, and the HE₂ mode field is distributed more densely near the media interface. Making use of this fact, the authors obtain simple approximate formulas for calculating the cutoff wavelengths and the broadband coefficient of the partially filled HSW

Keywords

dielectric-loaded waveguides; eigenvalues and eigenfunctions; equivalent circuits; finite element analysis; waveguide theory; HE₁ mode field; HE₂ mode field; broadband coefficient; capacitance gap; cutoff wavelengths; dielectric filled waveguide; eigenfields; eigenparameters; electric field; equivalent circuit method; finite-element algorithm; horseshoe-shaped waveguide; transmission line; Capacitance; Dielectrics; Eigenvalues and eigenfunctions; Filling; Microwave devices; Rectangular waveguides; Transmission line matrix methods; Transmission lines; Waveguide components; Waveguide discontinuities;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250714

Filename

250714