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Design of Stealthy Devices Made of Metamaterials with Material Properties

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Abstract:

Using the method of electromagnetic coordinate transformation, through determination of the relation of permittivity and permeability distribution in different spaces, the forming condition of electromagnetic stealthy cloak made of metamaterial is discussed. On the specific distribution of permittivity and permeability, finite element method is used to analyze the electromagnetic characteristics of stealthy cloak which is radiated by plane electromagnetic wave. And the cloak shows excellent stealthy characteristic in theory at certain frequency of the wave. The result shows that the artificial metamterials, which are not found in nature, have the ability of controlling the electromagnetic field and changing the transmission path of wave. Besides stealthy cloak, new electromagnetic devices such as transparent device and concentrator, which are made of metamaterials designed by the coordinate transformation, are preliminarily discussed. They all have excellent stealthy characteristics.

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Periodical:

Advanced Materials Research (Volume 661)

Pages:

95-98

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.661.95

Citation:

Cite this paper

Online since:

February 2013

Authors:

Ye Liu, Zhu Ying Li, Wang Zhou Zhang, Yu Hong Sun

Keywords:

Coordinate Transformation, Metamaterial, Stealth

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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