A coupled surface-volume integral equation approach for the calculation of electromagnetic scattering from composite metallic and material targets

Author

Lu, C.C. ; Chew, W.C.

Author_Institution

Dept. of Electr. Eng., Kentucky Univ., Lexington, KY, USA

Volume

48

Issue

12

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

1866

Lastpage

1868

Abstract

A coupled surface-volume integral equation approach is presented fur the calculation of electromagnetic scattering from conducting objects coated with materials. Free-space Green´s function is used in the formulation of both integral equations. In the method of moments (MoM) solution to the integral equations, the target is discretized using triangular patches for conducting surfaces and tetrahedral cells for dielectric volume. General roof-top basis functions are used to expand the surface and volume currents, respectively. This approach is applicable to inhomogeneous material coating, and, because of the use of free-space Green´s function, it can be easily accelerated using fast solvers such as the multilevel fast multipole algorithm

Keywords

Green´s function methods; conducting bodies; electromagnetic wave scattering; inhomogeneous media; integral equations; method of moments; MoM solution; composite targets; conducting objects; conducting surfaces; coupled surface-volume integral equation; dielectric volume; electromagnetic scattering; free-space Green´s function; inhomogeneous material coating; metallic targets; method of moments; roof-top basis functions; surface currents; tetrahedral cells; triangular patches; volume currents; Acceleration; Coatings; Conducting materials; Dielectric materials; Electromagnetic coupling; Electromagnetic scattering; Green´s function methods; Integral equations; MLFMA; Moment methods;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.901277

Filename

901277