Inverse design-based metamaterial transparent device and its multilayer realization

We propose an inverse method to determine the material parameters of a transparent device without any knowledge of the corresponding transformation function. The required parameters are independently obtained and expressed as functions of the introduced generator. Moreover, to remove the inhomogenei...

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Bibliographic Details
Published in:Chinese physics B 2014-05, Vol.23 (5), p.263-267
Main Author: 李廷华 黄铭 杨晶晶 袁刚 蔡光卉
Format: Article
Language:English
Subjects:
Antennas
Devices
Inverse
Inverse method
Metamaterials
Multilayers
Simulation
Transformations (mathematics)
不均匀性
反设计
基础
有效介质理论
材料参数
材料设备
装置
转换函数
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Summary:We propose an inverse method to determine the material parameters of a transparent device without any knowledge of the corresponding transformation function. The required parameters are independently obtained and expressed as functions of the introduced generator. Moreover, to remove the inhomogeneity and anisotropy of material parameters, a layered transparent device composed of only homogeneous and isotropic materials is presented based on the effective medium theory. The feasibility of using the layered device in antenna protection is also investigated. Full-wave simulation is carried out for verification. This work paves a new way toward designing metamaterial devices without specifying the underlying coordinate transformation, and has great guiding significance for the practical fabrication of transparent devices.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/5/054102