A Miniature RFID Tag Antenna Design for Metallic Objects Application
A Miniature RFID Tag Antenna Design for Metallic Objects Application
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DOI：
10.1109/lawp.2009.2032252
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发表时间：
2009-09
影响因子：
4.2
通讯作者：
Sung-Lin Chen
中科院分区：
文献类型：
--
作者：
Sung-Lin Chen
本文提出了一种适用于金属物体的微型射频识别标签天线设计。天线结构由两个矩形贴片组成，通过通孔电连接到接地平面和非连接的互导层，以形成适合安装在金属物体上的RFID标签天线。通过在天线结构中插入导电层以增加天线的容抗来实现小型化设计。这使得所提出的天线的自谐振频率接近低频;因此，可以用小尺寸的RFID标签天线获得天线阻抗的高虚部。实验测试表明，放置在金属物体上的RFID标签的最大读取范围约为1.5 m，整体尺寸为32 × 18 × 3.2 mm 3。建议的RFID标签天线的仿真和测量结果也在这封信中。
This letter proposes a miniature radio frequency identification (RFID) tag antenna design for metallic objects application. The antenna structure consists of two rectangular patches electrically connected through vias to the ground plane and a nonconnected interconductive layer to form an RFID tag antenna that is suitable for mounting on metallic objects. The miniature design is achieved by inserting a conductive layer into the antenna structure to increase the capacitive reactance of the antenna. This causes the self-resonant frequency of the proposed antenna to approach low frequency; therefore, the high imaginary part of the antenna impedance can be obtained with a small-size RFID tag antenna. The experimental tests show that the maximum read range of RFID tag placed on a metallic object is about 1.5 m, and the overall size is 32 times 18 times 3.2 mm3. Simulation and measurement results of the proposed RFID tag antenna are also presented in this letter.