Comparative Features of Cylindrical Electromagnetic Black Holes with Positive and Negative Refractive Indexes

被引：0
|
作者：
Chizhevskaya, Yana I. [1 ,2 ]
Skobelev, Sergei P. [1 ,2 ]
机构：
[1] Moscow Inst Phys & Technol, Dolgoprudnyi, Russia
[2] PSC Radiofiz, Moscow, Russia
来源：
2019 13TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2019年
关键词：
absorbing element; cylinder; electromagnetic wave scattering; negative refractive index; radial inhomogeneity;
D O I：
暂无
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：
A problem of plane wave scattering by cylindrical electromagnetic black holes with radial profile of relative permittivity and permeability in the form epsilon(rho)=mu(p)similar to 4/p(2) is considered. The problem is solved both analytically for a basic model of the hole and numerically with use of the one-dimensional finite element method for a modified model. It is shown that the absorption efficiency for the cylinder with a negative refractive index at realistic parameters of losses only insignificantly exceeds the absorption efficiency for the similar cylinder with a positive refractive index in comparison with the case of extremely low losses at the outer surface and extremely high value of permittivity at the cylinder axis considered in the previous publications.
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页数：5
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