Boundary element computations of 3D transient scattering from lossy dielectric objects

Author

Schlemmer, Erwin ; Rucker, Wolfgang M. ; Richter, Kurt R.

Author_Institution

Inst. for Fundamentals & Theor. In Electr. Eng., Graz Univ. of Tecnol., Austria

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1524

Lastpage

1527

Abstract

A method for computing the transient scattering from arbitrarily shaped lossy dielectric objects is presented. Starting from Green´s function for lossy media and the surface integral equation formulation of electromagnetic scattering, a combination of integral equations which is capable of dealing with the scattering process in the time domain without instability is given. The discretization of the scatterers using eight-noded boundary elements is discussed. Semidiscontinuous boundary elements are used for objects with edges and vertices. Some examples show the applicability of the method. The results are compared with the analytical solution obtained via the Mie series

Keywords

Green´s function methods; boundary-elements methods; electromagnetic wave scattering; integral equations; 3D transient scattering; Green´s function; discretization; eight-noded boundary elements; electromagnetic scattering; lossy dielectric objects; semicontinuous boundary elements; surface integral equation formulation; Conductivity; Current density; Dielectric losses; Electromagnetic scattering; Geometry; Green´s function methods; Integral equations; Light scattering; Mie scattering; Time domain analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250693

Filename

250693