Metamaterial homogenization: extraction of effective constitutive parameters

被引：8

作者：

Fietz, Chris ^{[1
]}

Shvets, Gennady ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

来源：

METAMATERIALS: FUNDAMENTALS AND APPLICATIONS II | 2009年 / 7392卷

关键词：

metamaterial homogenization; constitutive parameters; metamaterial antenna; PERMITTIVITY; PERMEABILITY;

D O I：

10.1117/12.827031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a numerical algorithm for extracting all 36 linear constitutive parameters of a metamaterial crystal as a function of frequency and wavenumber based on driving a metamaterial with electric and magnetic charge and current. We demonstrate how spatial dispersion can result in bianisotropy in a centrosymmetric crystal. Several tests are performed on a 2D metamaterial crystal to validate these "current driven" constitutive parameters. Finally, we show how our method can be used to study spatial dispersion by studying constitutive parameters for small k.

引用

页数：12

共 15 条

[1]

[Anonymous], 2003, GEN INVERSES

[2] The complex Bloch bands of a 2D plasmonic crystal displaying isotropic negative refraction [J].