Scattering from a cylindrical waveguide with rectangular corrugations

Author

Lee, Haeng S. ; Eom, Hyo J.

Author_Institution

LCT Electron. Inst. of Technol., Taejon, South Korea

Volume

49

Issue

2

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

315

Lastpage

320

Abstract

Electromagnetic scattering from a circular cylindrical waveguide with rectangular corrugations is considered in this paper. An analysis method based on dyadic Green´s functions and Fourier transforms is used to get the field in terms of modal currents induced on the corrugation openings. The fields are expressed through a series of modal eigenfunctions in the corrugations, and are integrated to get the unknown expansion coefficients. This analysis method can easily be extended to find the dispersion relations of the corrugated waveguide. The series solution obtained is analytic and suitable for numerical computation. Numerical results are presented to illustrate the scattering behavior of a corrugated cylindrical waveguide in terms of frequency and waveguide geometry

Keywords

Fourier transforms; Green´s function methods; circular waveguides; electromagnetic wave scattering; waveguide theory; Fourier transform; cylindrical waveguide; dispersion relations; dyadic Green function; electromagnetic wave scattering; modal currents; modal eigenfunctions; mode converter; model expansion coefficients; rectangular corrugations; Dispersion; Engine cylinders; Equations; Frequency; Geometry; Magnetic analysis; Rectangular waveguides; Scattering; Transmission line matrix methods; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.903091

Filename

903091