Electromagnetic scattering from perfectly conducting rough surfaces (a new full wave method)

Author

Collin, Robert E.

Author_Institution

Dept. of Electr. Eng., Case Western Reserve Univ., Cleveland, OH, USA

Volume

40

Issue

12

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

1466

Lastpage

1477

Abstract

A method that does not make use of the telegraphist´s equations and takes into account the two-dimensional roughness of the surface from the start is developed. It is shown that the scattering coefficients obtained agree with those given in earlier work by E. Bahar (1973, 1987). The method is based on reducing the three-dimensional scattering problem to a two-dimensional problem by expanding each rectangular component of Maxwell´s equations in terms of local basis functions along the perpendicular direction to the mean surface. The transformed two-dimensional field equations are solved using Fourier transforms. The full wave solutions are also compared with the first-order perturbation solutions, the Kirchhoff-type solutions, and integral equation results

Keywords

Fourier transforms; Maxwell equations; electromagnetic wave scattering; numerical analysis; Fourier transforms; Kirchhoff-type solutions; Maxwell´s equations; electromagnetic scattering; first-order perturbation solutions; full wave method; integral equation results; local basis functions; perfectly conducting rough surfaces; two-dimensional roughness; Differential equations; Electromagnetic scattering; Fourier transforms; Integral equations; Maxwell equations; Physics; Polarization; Rough surfaces; Surface roughness; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.204737

Filename

204737