Numerical Simulation of Metamaterials with Arbitrary Shapes for Camouflage Applications

Metamaterials are artificial composites that acquire their electromagnetic properties from embedded subwavelength metallic structures. In theory, the effective electromagnetic properties of metamaterials at any frequency can be engineered to take on arbitrary values, including those not appearing in nature. As a result, this new class of materials can dramatically add a degree of freedom to the control of electromagnetic waves and open new vistas in military camouflage and offer the possibility of target's perfect cloacking. In this paper, we firstly introduce active and passive metamaterials and then we simulate them with arbitrary shapes.