Broadband Circularly Polarized Stacked Patch Antenna for Universal UHF RFID Applications

被引：3

作者：

Chen, Chih-Chiang ^{[1
]}

Chen, Bo-Shau ^{[1
]}

Sim, Chow-Yen-Desmond ^{[1
]}

机构：

[1] Feng Chia Univ, Dept Elect Engn, Taichung 40724, Taiwan

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2016年 / E99B卷 / 01期

关键词：

circular polarization; patch antenna; stacked patch; universal UHF RFID;

D O I：

10.1587/transcom.2015ISI0001

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 double layer stacked patch antenna with a size of 200 x 200x48 mm(3) is proposed in this investigation. To achieve a broad CP band-width that can cover universal UHF RFID applications (840-960 MHz), a slot loaded circular patch antenna fed by an L-shaped probe is designed as the lower layer (main patch), while the top layer (parasitic patch) is a simple circular patch loaded with a cross-slot of dissimilar arm lengths. Besides demonstrating a broad 10-dB return loss bandwidth of 16% (823-966 MHz) and a CP bandwidth (3-dB axial ratio) of 14.0% (837-963 MHz), the proposed antenna also yields maximum gain and minimum radiation efficiency of 8.8 dBic and 85%, respectively, across the universal UHF RFID bands.

引用

页码：2 / 8

页数：7

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