Frequency Controllable Metamaterial Absorber by an Added Dielectric Layer

被引：0

作者：

Li, Xiong ^{[1
,2
]}

Feng, Qin ^{[1
]}

Luo, Xiangang ^{[1
]}

Hong, Minghui ^{[2
]}

机构：

[1] Chinese Acad ofSciences, State Key Lab Opt Technol Microfabricat, Inst Opt & Elect, POB 350, Chengdu 610209, Peoples R China

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

MALAYSIA ANNUAL PHYSICS CONFERENCE 2010 (PERFIK-2010) | 2011年 / 1328卷

关键词：

metamaterial; perfect absorber; sub-wavelength;

D O I：

10.1063/1.3573764

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we introduce a covered dielectric layer in the traditional metamaterial absorber (MA) constructed by periodic resonant split rings. The absorber frequency can be simply controlled by the permittivity and the thickness of the added layer, without affecting the shape of the absorptivity spectrum. Furthermore, the dielectric loss property of the added layer does not influence the absorption characteristic obviously when the loss is not high. Based on these unique properties, a dynamically tunable MA can be realized by modulating a covered liquid dielectric layer.

引用

页码：318 / +

页数：2