基于偏振特性的无芯片RFID系统

2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies (MAPE) Pub Date : 2017-10-01 DOI:10.1109/MAPE.2017.8250866

Chunhong Chen, Yunjiao Chen, Tao Li, Yunzhong Yu, Wen Wu

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引用次数: 5

摘要

提出了一种基于偏振特性的无芯片RFID系统。该系统由极化识别读取器和多种具有特定极化的标签天线组成。阅读器的正交双极化天线可以形成任意极化波，由双通道幅相可控源馈电。在被辐射区域具有特定极化的标签天线反射一定的波，回波依赖于标签天线的极化。由此，阅读器可根据回波信号确定标签天线的极化模式。该方法具有编码容量大、信号处理简单、成本低等优点。分析和实测结果表明，无芯片RFID系统可以根据两个回波信号确定标签天线的极化模式。

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A chipless RFID system based on polarization characteristics

This paper presents a chipless RFID system based on polarization characteristics. The system consists of a polarization-recognition reader and a variety of tag antennas with specific polarization. The orthogonal dual-polarization antenna of the reader can form arbitrary polarization wave fed by dual-channelamplitude and phase controllable source. The tag antenna with a particular polarization in irradiated area reflects some wave, and the echo depends on the polarization of the tag antenna. Thus, the reader can determine the polarization mode of the tag antenna according to the echo signal. This method has the advantages of large coding capacity, simple signal processing and low cost. Analysis and measured results show that the chipless RFID system can determine the polarization mode of the tag antenna according to two echo signals.

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来源期刊

2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies (MAPE)

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