聚二甲基硅氧烷
材料科学
地平面
超材料
图层(电子)
导电体
基质(水族馆)
微流控
光电子学
液态金属
超材料吸收剂
吸收(声学)
复合材料
光学
可调谐超材料
纳米技术
电气工程
地质学
工程类
物理
海洋学
天线(收音机)
作者
Kyeongseob Kim,Dongju Lee,Seunghyun Eom,Sungjoon Lim
出处
期刊:Sensors
[MDPI AG]
日期:2016-04-11
卷期号:16 (4): 521-521
被引量:32
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.
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