Effects of Different Kinds of Losses on the Performance of Regular Polygonal Cloak

Author

Wu, Qun ; Zhang, Kuang ; Meng, Fan-Yi ; Li, Le-Wei ; Yang, Guo-hui

Author_Institution

Dept. of Electron. Sci. & Technol., Harbin Inst. of Technol., Harbin, China

Volume

45

Issue

10

fYear

2009

Firstpage

4211

Lastpage

4214

Abstract

Based on the constitutive tensor of the perfect regular polygonal cloak, the effects of different kinds of losses on the performance of regular polygonal cloak are investigated. The cloak is modeled and simulated using full wave package COMSOL MULTIPHYSICS. It is found that if the loss tangents are imposed on one or more components of constitutive tensors, especially on the off-diagonal components, the performance of the cloak in the backward region is significantly different from the results of the traditional case, in which losses are the same in all components of magnetic and electric loss tangents. We believe that the results are helpful for the practical situations.

Keywords

dielectric losses; electromagnetic shielding; magnetic leakage; metamaterials; constitutive tensors; electric loss tangents; electromagnetic cloak; full wave package; inhomogeneous metamaterial; magnetic loss tangents; regular polygonal cloak; Anisotropic and inhomogeneous metamaterial; cloak; invisibility; losses;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2023867

Filename

5257044