A stable integral equation for electromagnetic scattering from homogeneous dielectric bodies

Author

Mautz, J.R.

Author_Institution

Dept. of Electr. & Comput. Eng., Syracuse Univ., NY

Volume

37

Issue

8

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

1070

Lastpage

1071

Abstract

It is shown that a previously derived integral equation for electromagnetic scattering from a homogeneous dielectric body (see ibid., vol.AP-32, p.166-172, Feb. 1984) does not have a unique solution at resonant frequencies of the cavity formed by making the surface S of the body perfectly conducting and filling the region internal to S with the external medium. This integral equation was formulated so that an equivalent electric current radiates in the presence of the homogeneous external medium to produce the scattered field external to the body. A combination of equivalent electric and magnetic currents is used to formulate an integral equation whose solution is always unique

Keywords

electromagnetic wave scattering; integral equations; electromagnetic scattering; equivalent electric current; equivalent magnetic currents; homogeneous dielectric bodies; stable integral equation; unique solution; Conducting materials; Current; Dielectrics; Electromagnetic fields; Electromagnetic scattering; Filling; Integral equations; Magnetic resonance; Resonant frequency; Scattering parameters;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.34145

Filename

34145