The Research of Metamaterial Absorbers' Design Optimization and Tuning

Firstly, this paper uses the method that combines theoretical analysis with simulation to design a dual-frequency absorber. The absorption peaks appear at the two frequencies of 6GHz and 10.5GHz, and the absorption rates are 79% and 88%. Then based on the dual-frequency structure, the lumped components are introduced and the structure is optimized. The calculation results show that the absorption bandwidth and absorption rate are greatly improved, and the performance advantages of the metamaterial absorber based on lumped components are verified.