Finlines in rectangular and circular waveguide housings including substrate mounting and bending effects-finite element analysis

Author

Eswarappa ; Costache, George I. ; Hoefer, Wolfgang J R

Author_Institution

Dept. of Electr. Eng., Ottawa Univ., Ont., Canada

Volume

37

Issue

2

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

299

Lastpage

306

Abstract

The finite-element method is used to derive the dispersion characteristics and field components of dominant and higher order modes in finlines. The method is accurate and covers the metallization thickness, substrate mounting grooves, bending of the substrate, and arbitrary cross sections. Results for structures already obtained with other methods have been found to agree well with available data. As a new contribution, the effect of substrate bending on the propagation constant is studied. The dispersion characteristics for the dominant and higher order modes for bilateral finlines in circular waveguide housing are calculated. The field plots for all the modes are given

Keywords

circular waveguides; dispersion (wave); fin lines; finite element analysis; arbitrary cross sections; bending effects; bilateral finlines; circular waveguide housings; dispersion characteristics; dominant modes; field components; field plots; finite element analysis; higher order modes; metallization thickness; propagation constant; rectangular waveguide housings; substrate mounting; substrate mounting grooves; Dielectric losses; Finite element methods; Finline; Geometry; Laplace equations; Magnetic fields; Metallization; Permittivity; Propagation constant; Rectangular waveguides;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.20055

Filename

20055