Modeling Microwave Chiral Material Based on Cranks Resonator Array Using Comsol Multiphysics

Abstract:

Electromagnetic metamaterials present exotic and unusual properties hardly to be found in nature with many potential applications. They are usually built by distributing small resonant structures in periodical lattices. If the structure has chiral symmetry, the medium is called chiral metamaterial. Here the electrodynamics behaviour of a chiral structure with a huge electromagnetic activity at microwave frequencies is modeled by making use of COMSOL Multiphysics RF module and successfully compared to the experiment. Linearly and circularly polarized modes at normal incidence have been simulated and different experimental conditions have been modeled to extract reflection and transmission coefficients for the electromagnetic characterization of the sample.

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