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| Design of Metamaterial Electromagnetic Invisible Wavelength Transformer with Arbitrary Shape |
| Received:July 07, 2015 Revised:February 15, 2016 |
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| DOI：10.7643/issn.1672-9242.2016.01.018 |
| KeyWord:metamaterial coordinate transformation wavelength-transformer invisibility |
| Author | Institution |
| LIU Ye |
Naval University of Engineering，Wuhan ，China |
| LI Zhu-ying |
Naval University of Engineering，Wuhan ，China |
| YU Xiang |
Naval University of Engineering，Wuhan ，China |
| CAO Wen-kang |
Naval University of Engineering，Wuhan ，China |
| ZHAO Ya |
Naval University of Engineering，Wuhan ，China |
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| Abstract: |
| Objective To study the design method of metamaterial electromagnetic invisible wavelength transformer with arbitrary shape. Methods Based on coordinate transformation theory, by means of compressing certain region and then expanding another one in the space, the electromagnetic tensors of the device in different regions were deduced. Results On one hand, when the incoming waves propagated into the device, there was no scattering on the boundary of the device. And the waves returned to their original propagation when they propagated into the free space from the inner region of the device. On the other hand, the device could change the wavelength of electromagnetic wave in the particular region. Conclusion The simulation results of the software based on finite element method showed that the wavelength transformer realized the anticipated electromagnetic function, which validated the electromagnetic tensor expressions of the device. |
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