A Circularly Polarized Aperture-coupled Patch Antenna for RFID Reader

被引：0
|
作者：
Yu, Donghai [1 ]
Ma, Yao [1 ]
Zhang, Zhiyun [1 ]
Sun, Renjie [1 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China
来源：
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年
关键词：
UHF RFID; reader antenna; aperture couple; circularly polarized;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A novel aperture-coupled circularly polarized metallic patch antenna for UHT RFID reader is proposed. In the particular configuration studied, a square patch is placed above a common plane and is fed by means of an aperture-coupled feed network, which adopts sequential rotation technique. The aperture-coupled configuration and multilayer dielectric substrates have the advantage of miniaturizing the antenna's size and enhancing the antenna bandwidth. By means of electromagnetic simulation, the impedance bandwidth and 3dB axial-ratio bandwidth of the circularly polarized patch antenna presented achieve 58MHz and more than 1%, respectively. Peak antenna gain across the overall operating band is designed to be 6 dB. Because of taking factors such as cost and weight into account by the selection of dielectric substrates, it's very easy to get the low-cost and light-weight antenna.
引用
收藏
页码：2851 / 2853
页数：3
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