Electromagnetic cloaking devices for TE and TM polarizations
Electromagnetic cloaking devices for TE and TM polarizations
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DOI：
10.1088/1367-2630/10/11/115035
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发表时间：
2008-11-27
影响因子：
3.3
通讯作者：
Vegni, Lucio
中科院分区：
文献类型：
--
作者：
Bilotti, Filiberto;Tricarico, Simone;Vegni, Lucio
本文介绍了一种同时适用于横向电(TE)和横向磁(TM)极化的电磁隐身装置的设计。这里使用的隐形理论方法的灵感来自于Al和Engheta(2005 Phys.版本E 72 016623)。首先考虑了TE极化的情况，然后设计了一种基于包含体的TE极化斗篷。在这种情况下，斗篷是由近零(MNZ)超材料制成的，作为可用于纯介电对象的近零(ENZ)材料的双重副本。通过一套完整的全波数值模拟，深入研究了TE偏振隐身装置的工作特性和稳健性。最后，利用Silveirinha等人已经使用的磁性夹杂物和平行板介质(Phys.版本E 75 036603)。
In this paper, we present the design of an electromagnetic cloaking device working for both transverse electric (TE) and transverse magnetic (TM) polarizations. The theoretical approach to cloaking used here is inspired by the one presented by Al and Engheta (2005 Phys. Rev. E 72 016623) for TM polarization. The case of TE polarization is firstly considered and, then, an actual inclusion-based cloak for TE polarization is also designed. In such a case, the cloak is made of a mu-near-zero (MNZ) metamaterial, as the dual counterpart of the epsilon-near-zero (ENZ) material that can be used for purely dielectric objects. The operation and the robustness of the cloaking device for the TE polarization is deeply investigated through a complete set of full-wave numerical simulations. Finally, the design and an application of a cloak operating for both TE and TM polarizations employing both magnetic inclusions and the parallel plate medium already used by Silveirinha et al (Phys. Rev. E 75 036603) are presented.