| Original Articles |
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Electromagnetic Invisibility of Elliptic Cylinder Cloaks |
| YAO Kan1,2;LI Chao1;LI Fang1 |
| 1Institute of Electronics, Chinese Academy of Sciences, Beijing 1000802Graduate University of the Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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YAO Kan, LI Chao, LI Fang 2008 Chin. Phys. Lett. 25 1657-1660 |
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Abstract Structures with unique electromagnetic properties are designed based on the approach of spatial coordinate transformations of Maxwell's equations. This
approach is applied to scheme out invisible elliptic cylinder cloaks, which provide more feasibility for cloaking arbitrarily shaped objects. The transformation expressions for the anisotropic material parameters and the field distribution are derived. The cloaking performances of ideal and lossy elliptic cylinder cloaks are investigated by finite element simulations. It is found that the cloaking performance will degrade in the forward direction with
increasing loss.
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| Keywords:
41.20.Jb
42.25.Gy
42.25.Fx
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Received: 23 January 2008
Published: 29 April 2008
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| PACS: |
41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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42.25.Gy
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(Edge and boundary effects; reflection and refraction)
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42.25.Fx
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(Diffraction and scattering)
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