Retrieval Parameters of Chiral Metamaterials With Proposed Crescent Shaped Split Ring Resonators

We propose a new uniaxial metamaterial which is composed of four crescent shaped split-ring resonators mutually twisted by 90 degrees and patterned on opposite sides of a dielectric substrate. It illustrates a strong optical activity and circular dichroism in the range from 5 GHz to 10 GHz. The presented desing can be fabricated more easily due to its efficient metallic srructures. Furthermore, chirality value of this proposed chiral metamaterial is large enough the optical applications. This study also shows that the proposed crescent shaped chiral metamaterials have good responses when compared with other studied samples in literature. All validations are performed by computer simulation program CST Microwave Studio in the 5-10 CHz frequency range