Stretchable Metamaterial Absorber Using Liquid Metal-Filled Polydimethylsiloxane (PDMS)

被引：43

作者：

Kim, Kyeongseob ^{[1
]}

Lee, Dongju ^{[1
]}

Eom, Seunghyun ^{[1
]}

Lim, Sungjoon ^{[1
]}

机构：

[1] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South Korea

来源：

SENSORS | 2016年 / 16卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

liquid metal; metamaterial absorber; microfluidics; strain sensor; stretchable; FABRICATION; SYSTEMS;

D O I：

10.3390/s16040521

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A stretchable metamaterial absorber is proposed in this study. The stretchability was achieved by liquid metal and polydimethylsiloxane (PDMS). To inject liquid metal, microfluidic channels were fabricated using PDMS powers and microfluidic-channel frames, which were built using a three-dimensional printer. A top conductive pattern and ground plane were designed after considering the easy injection of liquid metal. The proposed metamaterial absorber comprises three layers of PDMS substrate. The top layer is for the top conductive pattern, and the bottom layer is for the meandered ground plane. Flat PDMS layers were inserted between the top and bottom PDMS layers. The measured absorptivity of the fabricated absorber was 97.8% at 18.5 GHz, and the absorption frequency increased from 18.5 to 18.65 GHz as the absorber was stretched from its original length (5.2 cm) to 6.4 cm.

引用

页数：12

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