A physical basis formulation for the electromagnetic backscattering by a finite-length rectangular trough in a ground plane

Author

Shamansky, H. ; Dominek, A. ; Wang, N.

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

41

Issue

4

fYear

1993

fDate

4/1/1993 12:00:00 AM

Firstpage

397

Lastpage

402

Abstract

The electromagnetic backscattering from a finite-length rectangular trough in an infinite ground plane is examined. A physical basis formulation is used to express the unknown currents in the trough aperture in terms of a forced wave resulting from the incident plane wave, and one or more pairs of oppositely directed traveling waves propagating along the trough. A Galerkin solution is employed to solve a very small system of equations to determine the weights of the postulated aperture currents, and then radiated to compute the radar cross section (RCS). These results are then compared with a measurement of a trough in a finite ground

Keywords

backscatter; electromagnetic wave scattering; numerical analysis; radar cross-sections; Galerkin solution; RCS; aperture currents; electromagnetic backscattering; finite-length rectangular trough; incident plane wave; infinite ground plane; physical basis formulation; radar cross section; Apertures; Backscatter; Boundary conditions; Electromagnetic forces; Electromagnetic scattering; Geometry; Integral equations; Magnetic field measurement; Polarization; Radar scattering;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.220971

Filename

220971