A Broadband UHF Near-Field RFID Antenna

被引：136

作者：

Qing, Xianming ^{[1
]}

Goh, Chean Khan ^{[1
]}

Chen, Zhi Ning ^{[1
]}

机构：

[1] Agcy Sci Technol & Res, Inst Infocomm Res, Singapore 138642, Singapore

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 12期

关键词：

Antenna; loop antenna; near-field antenna; radio frequency identification (RFID); segmented loop antenna; UHF;

D O I：

10.1109/TAP.2010.2078432

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 broadband segmented loop antenna is presented for ultra high frequency (UHF) near-field radio frequency identification (RFID) applications. Using a segmented line, the current distribution along the loop is kept in phase even though the perimeter of the loop is more than two operating wavelengths so that the proposed antenna generates strong and even magnetic field distribution in the near-field zone of the antenna. The antenna prototype, printed onto a piece of FR4 substrate, with an overall size of 175 x 180 x 0.5 mm(3), achieves a large interrogation zone of 154 x 154 mm(2) with good impedance matching and uniform magnetic field distribution over the entire UHF RFID band of 840-960 MHz.

引用

页码：3829 / 3838

页数：10

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