Compact diversity antenna for UHF RFID readers

被引：2
|
作者：
Ouattara, Y. B. [1 ]
Hamouda, C. [1 ]
Poussot, B. [1 ]
Laheurte, J. M. [1 ]
机构：
[1] Univ Paris Est Marne la Valle, Lab ESYCOM, F-77454 Champs Sur Marne 2, Marne La Vallee, France
来源：
ELECTRONICS LETTERS | 2012年 / 48卷 / 16期
关键词：
Radio frequency identification (RFID) - Slot antennas - Antenna grounds;
D O I：
10.1049/el.2012.1805
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 diversity antenna combining four inverted-F antennas (IFAs) is evaluated for UHF RF identification (RFID) readers. Polarisation and pattern diversities are obtained for a sequentially rotated configuration of the IFAs. Mutual coupling between ports is minimised by etching quarter-wavelength slots into the ground plane. The resulting envelope correlation coefficient is less than 0.003 in the working band. A switching diversity scheme is then applied to evaluate the tags readability in a lab environment. It is shown that the antenna diversity enhances the reading range compared to a circularly or a linearly polarised antenna of the same size.
引用
收藏
页码：975 / 976
页数：2
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