Characterization of corrugated waveguides by modal analysis

Author

Esteban, Jaime ; Rebollar, Jesus M.

Author_Institution

ETSI de Telecomunicacion, Univ. Politecnica de Madrid, Spain

Volume

39

Issue

6

fYear

1991

fDate

6/1/1991 12:00:00 AM

Firstpage

937

Lastpage

943

Abstract

A general formulation for the characterization of corrugated waveguides is presented. The formulation is based on modal expansion in the different smooth-walled waveguides which constitute the corrugated structure and on the use of mode matching at discontinuities. The use of an admittance matrix formulation and a suitable root-finding algorithm leads to a rigorous and efficient technique. Dispersion curves are presented for corrugated waveguides of circular and rectangular cross-sections. Complex modes are obtained for deep corrugations. The effect of the finite thickness and width of teeth and slots on the dispersion behavior is shown

Keywords

circular waveguides; dispersion (wave); rectangular waveguides; waveguide theory; admittance matrix formulation; circular cross-section; corrugated waveguides; deep corrugations; discontinuities; dispersion curves; modal analysis; mode matching; rectangular cross-sections; root-finding algorithm; Admittance; Dispersion; Equations; Magnetic fields; Modal analysis; Rectangular waveguides; Teeth; Transmission line matrix methods; Voltage; Waveguide discontinuities;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.81662

Filename

81662