Electromagnetic plane wave excitation of an open-ended conducting frustum

Author

Davis, Anthony M J ; Scharstein, Robert W.

Author_Institution

Dept. of Math., Alabama Univ., Tuscaloosa, AL, USA

Volume

42

Issue

5

fYear

1994

fDate

5/1/1994 12:00:00 AM

Firstpage

699

Lastpage

706

Abstract

A Chebyshev-Galerkin solution of the electric field integral equation for the surface current induced on a conducting frustum by an incident plane wave is presented. The physically motivated mathematics takes proper account of the static singularity in the kernel function and of the edge conditions at both apertures, to yield complete and convergent current expansions. Coupling of the electromagnetic field into the tapered interior of the open scatterer can be substantial, even in electrically narrow cross sections, due to the focusing action of the conical transmission line

Keywords

boundary-value problems; electric fields; electromagnetic wave scattering; integral equations; transmission line theory; Chebyshev-Galerkin solution; apertures; conical transmission line; convergent current expansions; edge conditions; electric field integral equation; electrically narrow cross sections; electromagnetic field coupling; electromagnetic plane wave excitation; focusing; incident plane wave; induced surface current; kernel function; open scatterer; open-ended conducting frustum; static singularity; Apertures; Chebyshev approximation; Electromagnetic coupling; Electromagnetic fields; Electromagnetic scattering; Integral equations; Kernel; Mathematics; Surface waves; Transmission lines;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.299569

Filename

299569