The extension of time-domain integral equation analysis to scattering from imperfectly conducting bodies

Author

Bluck, M.J. ; Walker, S.P. ; Pocock, M.D.

Author_Institution

Dept. of Mech. Eng., Imperial Coll., London, UK

Volume

49

Issue

6

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

875

Lastpage

879

Abstract

An extension of integral equation time-domain analysis to treat electromagnetic scattering from imperfect conductors embedded in a dielectric is presented. It employs isoparametric curvilinear representations, and an implicit time-stepping approach is used to achieve stability. The principal difficulties arise from the diffusive “wake” term which the finite conductivity introduces into the Green´s function. The consequent computational complexity and costs, both significantly greater than for perfectly conducting scatterers, are discussed. Examples of the application of the methods are presented

Keywords

Green´s function methods; computational complexity; conducting bodies; electromagnetic wave scattering; integral equations; time-domain analysis; Green´s function; computational complexity; dielectric; diffusive wake; electromagnetic scattering; imperfect conductors; imperfectly conducting bodies; integral equation time-domain analysis; isoparametric curvilinear representations; stability; time-domain integral equation analysis; time-stepping approach; Computational complexity; Computational efficiency; Conductivity; Conductors; Dielectrics; Electromagnetic scattering; Green´s function methods; Integral equations; Stability; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.931144

Filename

931144