Ultra-broadband metamaterial absorber using slotted metal loops with multi-layers and its anti-reflection analysis  

作　　者：Yu Ze Lu Guizhen Guo Qingxin 

机构地区：[1]School of Telecommunication Engineering, Communication University of China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2015年第5期41-44,共4页中国邮电高校学报（英文版）

基　　金：supported by the doctoral program foundation of Beijing(20120018110003)

摘　　要：An ultra-thin and broadband absorber which consists of periodic rings with gaps is proposed in this paper. The periodic rings are printed on the middle metallic layers in a four-layer substrate of total thickness is only 3.4 mm. Simulation results, which are gotten by using finite element method(FEM) and finite-difference time-domain(FDTD), show that the absorption is higher than 90% cover the frequencies range from 7.8 GHz to 22.2 GHz. The measurement results of the absorption agree with simulated ones very well. We also discuss the working mechanism according to the anti-reflection theory in the paper.An ultra-thin and broadband absorber which consists of periodic rings with gaps is proposed in this paper. The periodic rings are printed on the middle metallic layers in a four-layer substrate of total thickness is only 3.4 mm. Simulation results, which are gotten by using finite element method(FEM) and finite-difference time-domain(FDTD), show that the absorption is higher than 90% cover the frequencies range from 7.8 GHz to 22.2 GHz. The measurement results of the absorption agree with simulated ones very well. We also discuss the working mechanism according to the anti-reflection theory in the paper.

关 键 词：METAMATERIAL BROADBAND ANTI-REFLECTION periodicstr 

分 类 号：TB34[一般工业技术—材料科学与工程]