Oblique scattering from inhomogeneous cylinders using a coupled integral equation formulation with triangular cells

Author

Michielssen, Eric ; Peterson, Andrew F. ; Mittra, Raj

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

39

Issue

4

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

485

Lastpage

490

Abstract

A novel method of moments formulation for scattering from penetrable two-dimensional cylinders illuminated by an obliquely incident excitation is presented. The permittivity and permeability profiles may have arbitrary piecewise-constant dependence on the transverse variables. Regardless of the polarization of the incident field, the response of the scatterer is a combination of transverse electric (TE) and transverse magnetic (TM) waves. Coupled integral equations for the longitudinal electric and magnetic fields are used in conjunction with a triangular-cell discretization, a piecewise linear representation for E_z and H_z, and point-matching. Numerical results for the internal fields and scattering cross-section are presented to illustrate the accuracy of the approach

Keywords

electromagnetic wave scattering; integral equations; TE waves; TM waves; coupled integral equation formulation; electromagnetic scattering; inhomogeneous cylinders; internal fields; longitudinal electric fields; longitudinal magnetic fields; method of moments; numerical results; obliquely incident excitation; penetrable two-dimensional cylinders; permeability; permittivity; piecewise linear representation; point-matching; scattering cross-section; transverse electric waves; transverse magnetic waves; triangular cells; Couplings; Integral equations; Magnetic fields; Moment methods; Nonuniform electric fields; Permeability; Permittivity; Polarization; Scattering; Tellurium;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.81461

Filename

81461