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

页码：25 / 26

页数：2

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