Infinite-Area Isovolumetric Transformation for Electromagnetic Invisibility Cloaks Based on Transformation Electromagnetics

We propose a novel concept of the infinite-area isovolumetric transformation for electromagnetic invisibility cloaks. It is mathematically shown that the cloak based on the proposed transformation can be implemented by a nonmagnetic uniform medium. A corner cloak is designed and the required permittivity tensor and permeability are calculated. We demonstrate the operation of the corner cloak based on the equivalent circuit of full-tensor anisotropic media and the validity of the proposed concept is shown.