Integral equation modeling of cylindrically periodic scatterers in the interior of a cylindrical waveguide

Author

Anastassiu, Hristos T. ; Volakis, John L. ; Filipovic, Dejan S.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

46

Issue

11

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

1713

Lastpage

1720

Abstract

We examine the scattering from cylindrically periodic engine-like structures using integral-equation methods. The periodic scatterer is enclosed in a cylindrical waveguide, and the primary goal of this paper is to show that this type of geometry affords substantial computational reductions by exploiting the periodicity of the blade structure and characteristics of the modal scattering matrix of the engine-like termination. Also, as a result of the periodic waveguide termination, a limited number of modes are excited by a given incoming mode, and this is exploited for a further reduction of the storage requirements of the modal scattering matrix

Keywords

S-matrix theory; circular waveguides; electromagnetic wave scattering; integral equations; periodic structures; waveguide theory; blade structure; computational reductions; cylindrical waveguide; cylindrically periodic scatterers; engine-like structures; incoming mode; integral equation modeling; modal scattering matrix; Blades; Central Processing Unit; Ducts; Electromagnetic scattering; Electromagnetic waveguides; Engines; Integral equations; Periodic structures; Radar scattering; Transmission line matrix methods;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.734568

Filename

734568