Tunable Electromagnetic Cloaking by External Field 被引量：1

Tunable Electromagnetic Cloaking by External Field

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摘要 Electromagnetic cloaking based on the scattering cancellation method have been reviewed. The possibility of designing the tunable electromagnetic cloaking is analytically suggested with a single cloak composed of homogeneous materials,including semiconductor,superconductor,ferrite and ferroelectrics by using Mie scattering theory. The simulated results demonstrate that the cloaks with these homogeneous materials can drastically reduce the total scattering cross sections of the cloaked system by using the finite element method. These cloaking frequencies can be controlled by external field through tuning the permittivity or permeability of these materials by the applied field,such as temperature,magnetic field and electric field. These may provide some potential ways to design tunable cloaking with considerable flexibility. Electromagnetic cloaking based on the scattering cancellation method have been reviewed. The possibility of designing the tunable electromagnetic cloaking is analytically suggested with a single cloak composed of homoge- neous materials, including semiconductor, superconductor, ferrite and ferroelectrics by using Mie scattering theo- ry. The simulated results demonstrate that the cloaks with these homogeneous materials can drastically reduce the total scattering cross sections of the cloaked system by using the finite element method. These cloaking frequencies can be controlled by external field through tuning the permittivity or permeability of these materials by the applied field, such as temperature, magnetic field and electric field. These may provide some potential ways to design tunable cloaking with considerable flexibility.

作者刘友文王晓华董泽东李培宁

机构地区 College of Science

出处《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2014年第3期241-247,共7页 南京航空航天大学学报（英文版）

基金 Supported by the National Natural Science Foundation of China(11174147,11104144)

关键词 scattering cancellation tunable electromagnetic cloaking scattering cross section scattering cancellation tunable electromagnetic cloaking scattering cross section

分类号 O441.4 [理学—电磁学]

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