Abstract
In view of the current situation that the absorption effect of the metamaterial absorber is not ideal in the lower frequency section, this paper designs a wide frequency flexible metamaterial absorber applied in the C and X bands. Through the simulation and optimization of CST, the metamaterial absorbers can achieve more than 90% absorption rate in the range of 4.5-12GHz, and the maximum absorption rate can reach 99.999%, the perfect absorption effect of electromagnetic wave can be achieved. At the same time, a lot of research on the size of the metamaterial unit, the angle of the incident electromagnetic wave, the thickness of the dielectric material, the electric field and the current on the surface of the metal structure have been studied. The absorption principle of the absorber is deeply discussed, and the result of the analysis is finally obtained.
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