A Compact Dual-Band RFID Tag Antenna Mountable on Metallic Objects

被引：4
|
作者：
Mun, Byeonggwi [1 ]
Yoon, Yonghyun [1 ]
Lee, Hyunwoo [1 ]
Lee, Hark-Yong [2 ]
Lee, Byungje [1 ]
机构：
[1] Kwangwoon Univ, Dept Wireless Commun Engn, Seoul 139701, South Korea
[2] Sonovis Co Ltd, Songnam 461804, Gyeonggi Do, South Korea
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2015年 / 2015卷
关键词：
UHF;
D O I：
10.1155/2015/131908
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A compact (50 x 50 x 4 mm(3)) dual-band radio frequency identification (RFID) tag antenna mountable on metallic objects is proposed for the ultra-high frequency (UHF) band (917 similar to 923.5 MHz) and the microwave (MW) band (2.4 similar to 2.45 GHz). With the proximity-coupled feed loop, the proposed antenna consists of two symmetric planar inverted-F antenna (PIFA) elements for the UHF band passive tag and a meander microstrip patch antenna for the MW band active tag. The performance of the proposed antenna is verified by mounting it on the different sizes of the metallic object. Furthermore, the passive tag antenna in the UHF band furthermore may be used for energy harvesting techniques to improve the lifetime of the active tag in the MW band. The measured maximum read range is 5.50 m in the UHF band and 14.15 m in the MW band when the proposed tag antenna is mounted on the metallic objects. The total efficiency for all operating frequency bands is higher than 50%. High isolation (>12 dB) between tag antennas in the UHF band and the MW band is achieved.
引用
收藏
页数：8
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