A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications

被引：0
|
作者：
Chung, Hang Leong [1 ]
Qing, Xianming [1 ]
Chen, Zhi Ning [1 ]
机构：
[1] Inst Infocomm Res, Singapore 117674, Singapore
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2007年 / 2007卷
关键词：
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 broadband circularly polarized stacked probe-fed antenna suitable for UHF RFID applications is presented and studied. The proposed antenna is fed by two probes which are connected to a hybrid coupler. Two parasitic patches are stacked above a primary probe-fed patch to enhance the bandwidth of the antenna. The optimized antenna prototype achieves gain of more than 6.5 dBic, axial ratio of less than 3.0 dB, and return loss of less than - 15 dB over the UHF band of 820 980 MHz (17.7%). Parametric studies are carried out to demonstrate the effects of antenna geometry parameters on the performance. The proposed antenna can be a good candidate for UHF RFID applications. Copyright (C) 2007 Hang Leong Chung et al.
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页数：8
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