Vol. 123

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A Class of Polarization-Invariant Directional Cloaks by Concatenation via Transformation Optics

By Jingzhi Li and Hongyu Liu
Progress In Electromagnetics Research, Vol. 123, 175-187, 2012


This article is devoted to the construction and investigation of a class of polarization-invariant directional cloaks by concatenation of cloaking medium components via transformation optics. It improves the construction of the first polarization-invariant directional cloak, introduced by Agarwal et al. [1]. The main ingredient is to construct a capsuloid transformed metamaterial consisting of an lp-cylindrical transformation map and two half lp--spherical transformation maps. Numerical investigation is carried out to test the performances of the cloaks under different polarized incoming waves. A salient feature of our cloaks is compact-sizedness, namely the geometrical size is no longer dependent on the regularization parameter ρ under the non-uniform map. In particular, we study the cloaking effect with respect to the regularization parameter ρ and the incident direction.


Jingzhi Li and Hongyu Liu, "A Class of Polarization-Invariant Directional Cloaks by Concatenation via Transformation Optics," Progress In Electromagnetics Research, Vol. 123, 175-187, 2012.


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