Wireless strain sensor through a flexible tag antenna employing inductively-coupled RFID microchip
Wireless strain sensor through a flexible tag antenna employing inductively-coupled RFID microchip
复制标题
通过采用电感耦合 RFID 微芯片的灵活标签天线实现无线应变传感器
DOI：
10.1109/wamicon.2014.6857765
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
K. Dandekar
中科院分区：
文献类型：
--
作者：
D. Patron;T. Kurzweg;A. Fontecchio;G. Dion;K. Dandekar
来自RFID标签的后向散射功率的强度变化已被证明是测量材料变形的潜在无线解决方案。本文讨论了一种柔性标签天线的设计和性能配备了新型的电感耦合RFID微芯片用作无线应变传感器。柔性基板的介电特性已经进行了适当的设计和模拟所提出的天线设计。由于该辐射元件的平衡性质，进行差分散射参数测量以表征天线输入阻抗。最后，作为径向变形的函数的后向散射功率的测量也被示出为应变传感能力的定性分析。
Intensity variations of the backscattered power from an RFID tag have been demonstrated to be a potential wireless solution to measure material deformation. This paper discusses the design and performance of a flexible tag antenna equipped with novel inductively-coupled RFID microchip for use as a wireless strain sensor. Dielectric characterization of a flexible substrate has been carried out to properly design and simulate the proposed antenna design. Due to the balanced nature of this radiating element, differential scattering parameter measurements were performed to characterize the antenna input impedance. Finally, measurements of the backscattered power as a function of radial deformations are also shown as a qualitative analysis of the strain sensing capabilities.