A Novel Passive RFID Temperature Sensor Using Liquid Crystal Elastomers

机译：一种使用液晶弹性体的新型无源RFID温度传感器

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摘要

A passive RFID temperature sensor is presented. This sensor design utilizes a patch antenna integrated with a customized slot. Using a novel Liquid Crystal Elastomer (LCE) switch, the slot is shorted when the temperature reaches a specified threshold. When the temperature decreases below this threshold, the switch retracts to the original position. As a result, the antenna operates at one of two states corresponding to a controlled shift in frequency within the RFID band. Additionally, a single impedance matching network is designed to accommodate a favorable match between the two antenna states and the RFID IC.

机译：提出了一种被动RFID温度传感器。该传感器设计利用与定制插槽集成的贴片天线。使用新型液晶弹性体（LCE）开关，当温度达到指定阈值时，槽短路。当温度降低该阈值以下时，开关缩回到原始位置。结果，天线在与RFID频带内的频率的受控移位相对应的两个状态之一。另外，单个阻抗匹配网络被设计成适应两个天线状态和RFID IC之间的有利匹配。

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《IEEE International Symposium on Antennas and Propagation》|2018年|630p|共2页
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Yousuf Shafiq; John Gibson; Stavros V Georgakopoulos; Hyun Kim; Cedric P. Ambulo; Taylor H. Ware;
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中图分类天线;
关键词
Temperature sensors; Switches; Patch antennas; Radiofrequency identification; Slot antennas; Resonant frequency;

机译：温度传感器;开关;贴片天线;射频识别;插槽天线;谐振频率;

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专利

1. A Passive RFID Temperature Sensing Antenna With Liquid Crystal Elastomer Switching [J] . Shafiq Yousuf, Henricks Julia, Ambulo Cedric P., Quality Control, Transactions . 2020,第期

机译：具有液晶弹性体切换的无源RFID温度传感天线
2. Passive Digital Sensing Method and Its Implementation on Passive RFID Temperature Sensors [J] . Wenge Zhu, Qi Zhang, Mark Matlin, Sensors Journal, IEEE . 2021,第4期

机译：被动数字传感方法及其在无源RFID温度传感器上的实现
3. A Multifrequency Passive Sensing Tag With On-Chip Temperature Sensor and Off-Chip Sensor Interface Using EPC HF and UHF RFID Technology [J] . Reinisch H., Wiessflecker M., Gruber S., Solid-State Circuits, IEEE Journal of . 2011,第12期

机译：具有片上温度传感器和片外传感器接口的多频无源感应标签，采用EPC HF和UHF RFID技术
4. A Novel Passive RFID Temperature Sensor Using Liquid Crystal Elastomers [C] . Yousuf Shafiq, John Gibson, Stavros V Georgakopoulos, IEEE International Symposium on Antennas and Propagation;USNC/URSI National Radio Science Meeting . 2018

机译：使用液晶弹性体的新型无源RFID温度传感器
5. Experimental studies on: I. Elastomers swollen with liquid crystalline diluents. II. Elastomers reinforced with fillers. III. Effect of crosslinking in solution on strain-induced crystallization. [D] . Al-ghamdi, Ali M. S. 1987

机译：实验研究：I.用液晶稀释剂溶胀的弹性体。二。用填料增强的弹性体。三，溶液中交联对应变诱导结晶的影响。
6. Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites [O] . Hojin Kim, Bohan Zhu, Huiying Chen, 2016

机译：单畴液晶弹性体和液晶弹性体纳米复合材料的制备
7. Liquid Crystalline Elastomers: Microstructured Photopolymerization of Liquid Crystalline Elastomers in Oxygen‐Rich Environments (Adv. Funct. Mater. 40/2019) [O] . Joselle M. McCracken, Vincent P. Tondiglia, Anesia D. Auguste, 2019

机译：液晶弹性体：富氧环境中液晶弹性体的微结构化光聚合（ADV。Funct。Mater。40/2019）

A Novel Passive RFID Temperature Sensor Using Liquid Crystal Elastomers

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