| In this paper, the metamaterials absorbers are studied and a set of single wideband metamaterials absorbers structure is designed. By means of 3D electromagnetic simulation software CST, the simulation results show that the-5 d B bandwidth of unit absorbing structure can be expanded more 100% than that of the classic FSS structure. The main content of this article is:(1) This paper expounds the Salisbury screen, Jaumann screen, Frequency Selective Surfaces, basic concept and theory of metamaterials absorbers, and some of their basic characteristics.(2) The basic metamaterials absorbing structure based on the FSS was designed, at the same time discusses the structure size, dielectric layer, the polarization of incident wave, incidence angle, materials of the panel to the influence on the absorption efficiency.(3) Designed a new type of artificial electromagnetic material based on the frequency selective surface double-frequency point absorbing device. Incident angle in the range of 0 to 60, maximum absorption efficiency can reach more than 90%, and for TE and TM polarization has good absorption of stability.(4) Terahertz band absorbing structure was designed, compared with the traditional structure-5d B bandwidth can be improved by more than 100%,while the thickness of the structure can be reduced by half. |
