Title :
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
fDate :
7/1/2009 12:00:00 AM
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);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2021976
