Design and characteristic test of high bandwidth flexible NFC tag antenna based on gallium-based liquid metal

被引：0
作者：
Sun Y. [1 ,2 ]
Liu N. [1 ,2 ]
Weng L. [1 ,2 ]
Zhou Y. [3 ]
机构：
[1] State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin
[2] Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin
[3] College of Science, Tianjin University of Commerce, Tianjin
来源：
Sun, Ying (sunying@hebut.edu.cn) | 1600年 / Science Press卷 / 42期
关键词：
Flexible; Gallium-based liquid metal; High bandwidth; NFC tag antenna;
D O I：
10.19650/j.cnki.cjsi.J2107736
中图分类号：
学科分类号：
摘要：
A wearable and flexible NFC tag antenna is fabricated by using gallium-based liquid metal as flexible conductive material. Through theoretical, simulation and experimental analysis, the NFC tag antenna designed has good flexibility and high bandwidth. Its inductance change and resonance offset degree are very small under large stretching and bending deformation, and the working stability is well. Different from traditional NFC antenna, the antenna designed has good flexibility and stretchability, which can be gently attached to the surface of human skin. The NFC tag prepared by this antenna can communicate wirelessly at the operating frequency of 13.56 MHz. The maximum communication distance is about 3.36 cm, and the maximum communication distance after contacting with human wrist skin is about 3.12 cm. Due to its unique advantages, the flexible NFC tag antenna fabricated has great potential applications in information exchange, personal health data monitoring and wearable biosensors. © 2021, Science Press. All right reserved.
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页码：216 / 225
页数：9
相关论文
共 23 条
  • [1] COSKUN V, OZDENIZCI B, OK K., A survey on near field communication (NFC) technology, Wireless Personal Communications, 71, 3, pp. 2259-2294, (2013)
  • [2] LAZARO A, VILLARINO R, GIRBAU D., A survey of NFC sensors based on energy harvesting for IoT applications, Sensors, 18, 11, (2018)
  • [3] PIGINI D, CONTI M., NFC-based traceability in the food chain, Sustainability, 9, 10, (2017)
  • [4] YAN J, LU Y, CHEN G, Et al., Advances in liquid metals for biomedical applications, Chem Soc Rev, 47, 8, pp. 2518-2533, (2018)
  • [5] DICKEY M D, CHIECHI R C, LARSEN R J, Et al., Eutectic gallium-indium (EGaIn): A liquid metal alloy for the formation of stable structures in microchannels at room temperature, Advanced Functional Materials, 18, 7, pp. 1097-1104, (2008)
  • [6] CHIECHI R C, WEISS E A, DICKEY M D, Et al., Eutectic gallium-indium (EGaIn): A moldable liquid metal for electrical characterization of self-assembled monolayers, Angewandte Chemie International Edition, 47, 1, pp. 142-144, (2008)
  • [7] LIU T, SEN P, KIM C., Characterization of nontoxic liquid-metal alloy galinstan for applications in microdevices, Journal of Microelectromechanical Systems, 21, 2, pp. 443-450, (2012)
  • [8] JEONG Y R, KIM J, XIE Z, Et al., A skin-attachable, stretchable integrated system based on liquid GaInSn for wireless human motion monitoring with multi-site sensing capabilities, NPG Asia Materials, 9, 10, pp. e443-e443, (2017)
  • [9] TENG L, YE S, HANDSCHUH-WANG S, Et al., Liquid metal-based transient circuits for flexible and recyclable electronics, Advanced Functional Materials, 29, 11, (2019)
  • [10] MOHAN S S, HERSHENSON M D M, BOYD S P, Et al., Simple accurate expressions for planar spiral inductances, IEEE Journal of Solid-State Circuits, 34, 10, pp. 1419-1424, (1999)
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