Optimized Design of Multi-layer Metamaterial Absorber with Thin Thickness and Wide Bandwidth

Abstract

The multi-layer metamaterial absorbers (MMAs) are designed by a dual-objective optimization. The structure of the MMA which have thin thickness and wide absorptivity bandwidth are designed and optimized based on the combination of the metamaterial models from the metamaterial database. In this paper, the optimized MMA has a thickness of 6.2mm and high absorptivity of more than 90% from 4.304 to 17.872 GHz has been designed.