INVESTIGATIONS OF THE ELECTROMAGNETIC PROPERTIES OF THREE-DIMENSIONAL ARBITRARILY-SHAPED CLOAKS

被引：32

作者：

Cheng, Q. ^{[1
]}

Jiang, W. X.

Cui, T. J.

机构：

[1] Southeast Univ, Dept Radio Engn, Ctr Computat Electromagnet, Nanjing 210096, Peoples R China

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2009年 / 94卷

基金：

美国国家科学基金会;

关键词：

COORDINATE TRANSFORMATIONS; INVISIBILITY CLOAKS; EQUATIONS; MEDIA; FORM;

D O I：

10.2528/PIER09060705

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：

We investigate the electromagnetic properties of three-dimensional (3D) arbitrarily-shaped invisible cloaks based on the analytical field transformation theory instead of the complicated numerical simulations. Very simple closed-form expressions for fields and energy flow shave been derived for arbitrarily-shaped 3D cloak, which could help us to investigate the electromagnetic properties of the 3D cloaks rapidly and efficiently. The difference between 2D and 3D cloaks have been compared in detail. Distributions of the fields, power flows and wave polarizations for the 3D case have been discussed inside the cloak. Numerical results have been presented at the cut planes of cloaks to valid the theoretical analysis, which shows clearly how the incident waves are bent at the inner boundary. In order to further reveal the physical essence of the cloaks, both 3D spherical and ellipsoidal cloaks have been considered based on the analytical method. The common features and the differences for the two structures have been also illustrated in this paper.

引用

页码：105 / 117

页数：13

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