Domain integral equation analysis of scattering in layered dielectric media

Author

Petropoulos, P.G.

Author_Institution

USAF Sch. of Aerosp. Med., Brooks AFB, San Antonio, TX, USA

fYear

1992

fDate

18-25 June 1992

Firstpage

761

Abstract

The domain integral equation formulation of the Maxwell equations is employed in an analysis of scattering in layered dielectric media. The kernel of the integral equation is calculated in the space-domain with the pole compensated fast Fourier transform applied to the analytical expression that describes the waveguide Green´s function in spatial Fourier space. Galerkin´s method with pulse functions is employed to discretize the problem and form the linear system whose solution gives the total field over the scatter. Asymptotic techniques are then used to obtain the scattering pattern, and the reflection and transmission coefficients for the excited guided modes in the guiding layer. The scattered near-fields can be obtained by using the integral equation for observation points outside of the obstacle.<>

Keywords

Green´s function methods; Maxwell equations; electromagnetic wave scattering; fast Fourier transforms; integral equations; waveguide theory; FFT; Galerkin´s method; Maxwell equations; asymptotic techniques; domain integral equation formulation; guided modes; guiding layer; kernel; layered dielectric media; linear system; observation points; pole compensated fast Fourier transform; pulse functions; reflection coefficients; scattered near-fields; scattering pattern; space-domain; spatial Fourier space; transmission coefficients; waveguide Green´s function; waveguides; Dielectrics; Fast Fourier transforms; Green´s function methods; Integral equations; Kernel; Linear systems; Maxwell equations; Moment methods; Reflection; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221697

Filename

221697