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

被引：0
|
作者：
Ze, Yu [1 ]
Guizhen, Lu [1 ]
Qingxin, Guo [1 ]
机构：
[1] School of Telecommunication Engineering, Communication University of China, Beijing,100024, China
来源：
Journal of China Universities of Posts and Telecommunications | 2015年 / 22卷 / 05期
关键词：
Finite element method - Finite difference time domain method;
D O I：
10.1016/S1005-8885(15)60678-1
中图分类号：
学科分类号：
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. © 2015 The Journal of China Universities of Posts and Telecommunications.
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页码：41 / 44
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