Finger-Worn UHF Far-Field RFID Tag Antenna
Finger-Worn UHF Far-Field RFID Tag Antenna
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DOI：
10.1109/lawp.2019.2941731
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发表时间：
2019-12-01
影响因子：
4.2
通讯作者：
Batchelor, John C.
中科院分区：
文献类型：
--
作者：
Taylor, Paul S.;Batchelor, John C.
这封信介绍了一个实验性的无源UHF射频识别（RFID）标签的设计和测量，作为一个环，特别是在医疗保健或安全环境中的应用。三种尺寸的环被设计用于欧洲UHF RFID频带，在两种不同的基板上，在不同的高度离开皮肤。为无源RFID设计有效的身体安装天线非常具有挑战性，特别是当直接安装在皮肤上时。用商业电磁模拟软件模拟戒指，然后在几个角度的RF照射下在成年男性无名指上构建和测试，从而可以确定读取范围和方向性。主光束读取距离在2和5米之间，实现依赖于环形基板的高度。
This letter presents the design and measurement of an experimental passive UHF radio frequency identification (RFID) tag worn as a ring with applications particularly in healthcare or secure environments. Three sizes of rings were designed for the European UHF RFID band over two different substrates at varying heights off the skin. Designing effective body-mounted antennas for passive RFID is very challenging, particularly when mounted directly upon the skin. The rings were simulated with a commercial electromagnetic simulation software and then constructed and tested on an adult male ring finger over several angles of RF illumination so that read ranges and directivity could be determined. Main beam read distances between 2 and 5 m were achieved dependent on the ring substrate height.