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Highly stretchable and mechanically tunable antennas based on three-dimensional liquid metal network
Materials Letters ( IF 3 ) Pub Date : 2020-07-01 , DOI: 10.1016/j.matlet.2020.127727
Bin Yao , Xinwei Xu , Qingfeng Zhang , Hao Yu , He Li , Lulu Ren , Steven Perini , Michael Lanagan , Qing Wang , Hong Wang

Abstract We develop a class of stretchable dipole antennas based on embedding three-dimensional liquid metal network into an elastically soft elastomer as conductive branches, which can be highly stretched up to a strain of 300% while presenting high-quality reflection coefficient around −30 dB and a wide range of tunable resonant frequency from 1.55 to 0.45 GHz simultaneously. Neither mechanical damage nor performance degradation was observed during 100 stretch-release cycles under 100% strain for the antennas. The high electrical conductivity and deformation reversibility of the liquid metal, super stretchability of the soft elastomer and protection from the rigid layer are responsible for such a unique performance, enabling potential application for wireless strain sensors.

中文翻译:

基于三维液态金属网络的高度可伸缩和机械可调天线

摘要 我们开发了一类基于将三维液态金属网络嵌入作为导电分支的弹性软弹性体中的可伸缩偶极天线,该天线可以高度拉伸至 300% 的应变,同时呈现约 -30 dB 的高质量反射系数。以及从 1.55 到 0.45 GHz 的宽范围可调谐振频率。在天线 100% 应变下的 100 次拉伸释放循环期间,既没有观察到机械损坏,也没有观察到性能下降。液态金属的高导电性和变形可逆性、软弹性体的超强拉伸性和刚性层的保护是这种独特性能的原因,使无线应变传感器的潜在应用成为可能。
更新日期:2020-07-01
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