Electromagnetic scattering from ducts with irregular edges. II. Noncircular case

Author

Putnam, John M. ; Medgyesi-mitschang, Louis N.

Author_Institution

McDonnell Douglas Res. Labs., St. Louis, MO, USA

Volume

36

Issue

3

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

398

Lastpage

404

Abstract

For pt.I see ibid., vol.AP-36, no.3, p.383-97 (1988). Electromagnetic scattering from finite noncircular ducts terminated with irregular edges is investigated. An edge-dependent entire-domain Galerkin expansion is proposed for the current variation on the duct wall, rigorously satisfying the edge conditions. The electric field integral equation is solved using this expansion for arbitrary noncircular ducts. Convergence of these solutions is examined and compared to results obtained with a simpler edge-independent formulation. The solutions are shown to agree with previously published results for circular ducts and recently obtained experimental data

Keywords

electromagnetic wave scattering; integral equations; edge-dependent entire-domain Galerkin expansion; electric field integral equation; electromagnetic scattering; finite noncircular ducts; irregular edges; Boundary conditions; Computer aided software engineering; Ducts; Electromagnetic scattering; Geometry; Integral equations; Magnetics; Moment methods; Shape;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.192123

Filename

192123