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Abstract

Arbitrary regular/irregular shaped electromagnetic shrinking device and amplifying device with homogeneous, non-negative, anisotropic and genetic constitutive parameters are proposed and designed based on linear transformation optics, which provides the flexibility for device designing, and closer to the practical implementation. Furthermore, layered structure based on effective medium theory is utilized to remove the anisotropic property of the proposed device. Simulation results show that when with sufficient layers, both the layered shrinking device and amplifying device behave nearly as perfect as the ideal one. A dielectric or magnetic object placed inside the proposed device will be visually transformed into another object with a bigger/smaller size and different constitutive parameters are figured out clearly, making the proposed device have potential applications in military camouflage or other field of electromagnetic engineering system. The shrinking/amplifying scale is tailored by the ratio of b/c (b and c are the quasi-radius of the arbitrarily shaped polygon). Composing of alternatively isotropic layers with positive material parameters would dramatically reduce the fabrication difficulty and move the device a step further towards the practical application.

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Homogeneous shrinking/amplifying device and its layered realization

Arbitrary regular/irregular shaped electromagnetic shrinking device and amplifying device with homogeneous, non-negative, anisotropic and genetic constitutive parameters are proposed and designed based on linear transformation optics, which provides the flexibility for device designing, and closer to the practical implementation. Furthermore, layered structure based on effective medium theory is utilized to remove the anisotropic property of the proposed device. Simulation results show that when with sufficient layers, both the layered shrinking device and amplifying device behave nearly as perfect as the ideal one. A dielectric or magnetic object placed inside the proposed device will be visually transformed into another object with a bigger/smaller size and different constitutive parameters are figured out clearly, making the proposed device have potential applications in military camouflage or other field of electromagnetic engineering system. The shrinking/amplifying scale is tailored by the ratio of b/c (b and c are the quasi-radius of the arbitrarily shaped polygon). Composing of alternatively isotropic layers with positive material parameters would dramatically reduce the fabrication difficulty and move the device a step further towards the practical application.

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Keywords

alternatively isotropic layers linear transformation military camouflage anisotropic property quasiradius dielectric homogeneous nonnegative anisotropic and genetic constitutive parameters positive material parameters arbitrarily shaped polygon composing magnetic of electromagnetic engineering shrinkingamplifying scale effective medium theory regularirregular shaped electromagnetic shrinking device

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Chengfu Yang,Ming Huang,Tinghua Li,Jingjing Yang,Fuchun Mao,Yuyang Xue,.Homogeneous shrinking/amplifying device and its layered realization. 9 (2),.

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