Moment Method Analysis of Corrugated Surfaces Using the Aperture Integral Equation

Author

Alfonso, Esperanza ; Valero-Nogueira, Alejandro ; Herranz, Jose I. ; Vico, Felipe

Author_Institution

iTeam Inst., Univ. Politec. de Valencia, Valencia, Spain

Volume

57

Issue

7

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

2208

Lastpage

2212

Abstract

This communication describes a method of moments formulation to analyze the scattering from corrugated surfaces. The approach is based on the aperture integral equation. Such approach decouples the analysis of the impedance effect of the grooves from the external coupling among grooves and allows us to deal accurately with grooves of any shape. Advantage is taken of the geometrical properties of the problem to solve it efficiently using a conjugate gradient-FFT algorithm.

Keywords

boundary-value problems; conjugate gradient methods; fast Fourier transforms; horn antennas; integral equations; method of moments; aperture integral equation; conjugate gradient-FFT algorithm; corrugated surfaces; impedance effect; moment method analysis; Antennas and propagation; Apertures; Boundary conditions; Corrugated surfaces; Electromagnetic scattering; Electromagnetic waveguides; Integral equations; Moment methods; Shape; Surface impedance; Boundary-value problems; corrugated surfaces; electromagnetic scattering; hard surfaces; method of moments (MoM);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2021976

Filename

4907136