四川大学学报（自然科学版）2025，Vol.62Issue(6)：1399-1405,7.DOI:10.19907/j.0490-6756.250124
远距离读取小型RFID抗金属标签天线设计
Design of a miniaturized RFID anti-metal tag antenna for long-range reading
摘要
Abstract
In response to the long-range identification of metallic equipment,such as containers and power cabinets,this paper proposes a miniaturized anti-metal RFID tag antenna to overcome the performance degra-dation of traditional RFID tags on metal surfaces.The design utilizes a coupled feeding mechanism and mean-dering techniques to achieve a compact form factor while ensuring excellent impedance matching.Further-more,a symmetrical dual shorting-wall structure is introduced to optimize the radiation pattern.This configu-ration aligns the surface currents to be unidirectional,thereby achieving high antenna gain.Measurement of the fabricated antenna demonstrate its excellent performance,showing impedance matching with a power transmission coefficient of 0.95 at 924 MHz.It achieves a peak gain of 1.1 dBi and a maximum reading range of 17.6 m,representing an improvement of over 24%compared to similarly sized commercial tags.Conse-quently,the proposed tag is characterized by its robust anti-metal performance,compact size,and extended identification range.关键词
RFID/抗金属标签天线/远距离读取/小型化Key words
RFID/Anti-metal tag antenna/Long-range reading/Miniaturization分类
信息技术与安全科学引用本文复制引用
郭乙颗,刘佳鑫,陈娥,郭庆功..远距离读取小型RFID抗金属标签天线设计[J].四川大学学报（自然科学版）,2025,62(6):1399-1405,7.基金项目
国家自然科学基金(62171301) （62171301）
