A Cavity Backed UHF Near-Field Segmented Loop Antenna

被引：0
作者：
Shi, Jin [1 ]
Qing, Xianming [1 ]
Chen, Zhi Ning [1 ]
机构：
[1] Inst Infocomm Res, Singapore 138632, Singapore
来源：
2012 IEEE ASIA-PACIFIC CONFERENCE ON ANTENNAS AND PROPAGATION (APCAP) | 2012年
关键词：
Cavity backed; segmented loop; near-field antenna; UHF; RFID;
D O I：
暂无
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 cavity backed segmented loop antenna is proposed for ultra high frequency (UHF) near-field radio frequency identification (RFID) readers. The induced current along the cavity edges shows significant effect on the impedance matching and magnetic field distribution of the segmented loop antenna. A backed cavity with optimized dimensions enables the antenna generating stronger magnetic field so that the reading range is enhanced. The reading range of an antenna prototype with a cavity of optimized dimensions of 234 mm x 234 mm x 51 mm is increased by 7 mm compared to that of the segmented loop antenna without any cavity.
引用
收藏
页码：25 / 26
页数：2
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