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基于高导电性石墨烯组装膜的柔性抗金属射频识别标签天线

Flexible Anti-Metal RFID Tag Antenna Based on High-Conductivity Graphene Assembly Film.

作者信息

Zhang Bohan, Zhang Cheng, Wang Yuchao, Wang Zhe, Liu Chengguo, He Daping, Wu Zhi P

机构信息

Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China.

School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China.

出版信息

Sensors (Basel). 2021 Feb 22;21(4):1513. doi: 10.3390/s21041513.

DOI:10.3390/s21041513
PMID:33671608
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7926944/
Abstract

We propose a flexible anti-metal radio frequency identification (RFID) tag antenna based on a high-conductivity graphene assembly film (HCGAF). The HCGAF has a conductivity of 1.82 × 10 S m, a sheet resistance of 25 mΩ and a thickness of 22 μm. The HCGAF is endowed with high conductivity comparable to metal materials and superb flexibility, which is suitable for making antennas for microwave frequencies. Through proper structural design, parameter optimization, semiautomatic manufacturing and experimental measurements, an HCGAF antenna could realize a realized gain of -7.3 dBi and a radiation efficiency of 80%, and the tag could achieve a 6.4 m read range at 915 MHz on a 20 × 20 cm flat copper plate. In the meantime, by utilizing flexible polyethylene (PE) foam, good conformality was obtained. The read ranges of the tags attached to curved copper plates with different bending radii were measured, as well as those of those attached to several daily objects. All the results demonstrate the excellent performance of the design, which is highly favorable for practical RFID anti-metal applications.

摘要

我们提出了一种基于高导电性石墨烯组装膜（HCGAF）的柔性抗金属射频识别（RFID）标签天线。该HCGAF的电导率为1.82×10 S/m，方块电阻为25 mΩ，厚度为22μm。HCGAF具有与金属材料相当的高导电性和出色的柔韧性，适用于制造微波频率的天线。通过适当的结构设计、参数优化、半自动制造和实验测量，一个HCGAF天线可以实现-7.3 dBi的实现增益和80%的辐射效率，并且该标签在20×20 cm的平板铜板上于915 MHz时可实现6.4 m的读取范围。同时，通过使用柔性聚乙烯（PE）泡沫，获得了良好的保形性。测量了附着在不同弯曲半径的弯曲铜板上的标签的读取范围，以及附着在几个日常物品上的标签的读取范围。所有结果都证明了该设计的优异性能，这对于实际的RFID抗金属应用非常有利。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/e7859b8a5e85/sensors-21-01513-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/07ec5239007b/sensors-21-01513-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/f0e1d98ba425/sensors-21-01513-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/996feb709307/sensors-21-01513-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/cc5f9527de40/sensors-21-01513-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/308bc2b24230/sensors-21-01513-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/e3c8c62c10ff/sensors-21-01513-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/2191d9d5aa13/sensors-21-01513-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/ec6f97d330bc/sensors-21-01513-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/4ebf05f059da/sensors-21-01513-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/d4c2f9d26ced/sensors-21-01513-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/a775a29be6fa/sensors-21-01513-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/e7859b8a5e85/sensors-21-01513-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/07ec5239007b/sensors-21-01513-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/e825237363b0/sensors-21-01513-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/48880c0540b5/sensors-21-01513-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/f4a6373edfe6/sensors-21-01513-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/f0e1d98ba425/sensors-21-01513-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/996feb709307/sensors-21-01513-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/cc5f9527de40/sensors-21-01513-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/308bc2b24230/sensors-21-01513-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/e3c8c62c10ff/sensors-21-01513-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/2191d9d5aa13/sensors-21-01513-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/ec6f97d330bc/sensors-21-01513-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/4ebf05f059da/sensors-21-01513-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/d4c2f9d26ced/sensors-21-01513-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/a775a29be6fa/sensors-21-01513-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33b7/7926944/e7859b8a5e85/sensors-21-01513-g015.jpg

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