基于频变耦合带通滤波器的小型化无线温度传感器  

Miniaturized wireless temperature sensor based on frequency-dependent coupling bandpass filter

作　　者：张国江 李勇 陈挺 李文琪 程彬彬 周永金 ZHANG Guojiang;LI Yong;CHEN Ting;LI Wenqi;CHENG Binbin;ZHOU Yongjin(State Grid Jiangsu Electric Power Co Ltd,Nanjing 210024,China;Taizhou Power Supply Branch,State Grid Jiangsu Electric Power Co Ltd,Taizhou 225309,China;Key Laboratory of Specialty Fiber Optics and Optical Access Networks,School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China)

机构地区：[1]国网江苏省电力有限公司设备管理部,江苏南京210024 [2]国网江苏省电力有限公司泰州供电分公司,江苏泰州225309 [3]上海大学通信与信息工程学院特种光纤与光接入网重点实验室,上海200444

出　　处：《传感器与微系统》2023年第6期97-99,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61971469);上海市自然科学基金资助项目(18ZR1413500)。

摘　　要：电力系统中,高压开关柜、电缆接头等电力设备发生故障时,常伴随温度的异常升高,对温度进行实时监测,可及时发现异常情况,减少事故的发生。本文提出一种基于频变耦合(FDC)带通滤波器的小型化温度传感器。工作于毫米波频段,利用水的介电常数随温度变化的特性,可以有效感知温度变化,实现对环境温度的无线实时监测。仿真结果表明:该传感器对温度变化敏感,验证了其可行性。In power system,when the power equipment,such as high voltage switch cabinet and cable connector,breaks down,it is often accompanied by abnormal temperature rise.Real-time monitoring of the temperature can discover the abnormal situation in time and reduce the occurrence of accidents.A miniaturization temperature sensor based on frequency-dependent coupling(FDC)bandpass filter is proposed.It works at the millimeter(mm)wave frequency band.By using the characteristics of the dielectric constant of water changing with temperature,temperature change can be perceived effectively,and wireless and real-time monitoring of environmental temperature can be realized.The simulation results show that the sensor is sensitive to temperature change,which verifies the feasibility of the method.

关 键 词：频变耦合 带通滤波器 温度传感器 基片集成波导 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]