标签芯片整流器整流效率的无线测量

发布时间：2018-06-13 02:43

本文选题：射频识别 + 超高频　；参考：《电工技术学报》2017年18期

【摘要】：超高频标签芯片整流器整流效率是影响标签通信距离的主要因素之一。目前常用的商用标签并未留有测试端口,封装后采用探针测量芯片电路方法不再适用。基于超高频无源射频识别(UHF-RFID)通信原理和整流器工作原理,导出UHF-RFID标签芯片整流电路效率与芯片阻抗之间的关系式,提出标签芯片整流电路效率的无线测量方法。实验结果表明,当芯片输入功率在[-18,-13]d Bm内时,芯片整流效率小于46%,无线测量结果与探针测量和仿真结果基本一致,误差小于4.8%,且无线测量方法无需破坏标签封装结构。
[Abstract]:The rectifier efficiency of the ultra high frequency label chip rectifier is one of the main factors affecting the communication distance of the label. The common commercial labels are not used for testing ports, and the probe measurement chip circuit method is no longer applicable after encapsulation. Based on the principle of the UHF passive radio frequency identification (UHF-RFID) and the principle of the rectifier's work, the UHF-RFID standard is derived. The relationship between the efficiency of the chip rectifying circuit and the impedance of the chip and the wireless measurement method for the efficiency of the rectifying circuit of the label chip are proposed. The experimental results show that the chip rectifying efficiency is less than 46% when the input power of the chip is within [-18 and -13]d Bm, and the results of the wireless measurement are basically consistent with the probe measurement and simulation results, and the error is less than 4.8% and wireless. The measurement method does not need to destroy the label packaging structure.
【作者单位】：合肥工业大学电气与自动化工程学院;
【基金】：国家自然科学基金(51637004) 安徽省自然科学基金(1508085MF112) 湖南省自然科学基金(2017JJ2080) 中央高校基本科研业务费(JZ2015HGCH0157,JDK16TD01) 国家重大科学仪器设备开发项目(2016YFF0102200)资助
【分类号】：TM461

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