Polarizability analysis of cubical and square-shaped dielectric scatterers

被引：24

作者：

Avelin, J ^{[1
]}

Sharma, R ^{[1
]}

Hänninen, I ^{[1
]}

Sihvola, AH ^{[1
]}

机构：

[1] Helsinki Univ Technol, Electromagnet Lab, FIN-02015 Helsinki, Finland

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2001年 / 49卷 / 03期

关键词：

Electromagnetic Scattering; electrostatic potential; Method of Moments (MoM); mixing rules; polarizability;

D O I：

10.1109/8.918620

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The polarizability characteristics of nonspherical scatterers, especially cubes and squares, are studied in this paper. A surface integral equation for the electrostatic potential has been numerically solved for a cube and a square-shaped object. Nonuniform gridding of the dielectric object has been used to get a good accuracy in the solution, The results obtained for the polarizability of cubes using the surface integral equation are compared with those obtained from the volume integral equation and show a good agreement. We give simple approximation formulas for the polarizabilities as functions of the permittivity of the inclusions, The results give an improvement compared to earlier literature and also present a may to predict the effective properties of mixtures where cube-shaped inclusions are embedded in dielectric environment, which type of mixtures strongly generalize the effective-medium theories of the present literature.

引用

页码：451 / 457

页数：7