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International Journal of Antennas and Propagation
Volume 2012, Article ID 153086, 9 pages
http://dx.doi.org/10.1155/2012/153086
Research Article

Electromagnetic Reciprocal Cloak with Only Axial Material Parameter Spatially Variant

School of Information Science and Engineering, Yunnan University, Kunming 650091, China

Received 19 August 2011; Revised 10 October 2011; Accepted 10 October 2011

Academic Editor: Tat Yeo

Copyright © 2012 Jing Jing Yang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Reciprocal cloak is an intriguing metamaterial device, in which a hidden antenna or a sensor can receive electromagnetic irradiation from the outside but its presence will not be detected. Based on transformation optics, a cylindrical electromagnetic reciprocal cloak with only axial parameter varying with radius is designed and validated by full wave simulation. When two dispersive reciprocal cloaks are put together, they do not interfere with each other. Our work demonstrates the electromagnetic compatibility (EMC) ability of the reciprocal cloak which is very important in multi antenna and sensor design.