Circularly Polarized Circular Microstrip RFID Tag Antenna

被引：0

作者：

Tseng, Yen-Ming ^{[1
]}

Kuo, Shang-Huang ^{[1
]}

Chen, Horng-Dean ^{[1
]}

Sim, Chow-Yen-Desmond

机构：

[1] Natl Kaohsiung Normal Univ, Dept Optoelect & Commun Engn, Kaohsiung, Taiwan

来源：

2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012) | 2012年

关键词：

Circular polarization; microstrip antenna; radio frequency identification (RFID); tag antenna;

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 compact circularly polarized circular microstrip tag antenna designed for RFID UHF band is presented. A cross slot of unequal arm lengths embedded in a circular patch is used to achieve compact CP operation. By choosing the proper lengths of two short-circuited arc microstrip lines and its coupling distance, good complex impedance matching can be obtained. The measured 10-dB return-loss bandwidth of the tag antenna is 40 MHz (901-941 MHz), while its 3-dB axial-ratio bandwidth is 6 MHz (912-918 MHz). Further experiment shows that the tag antenna can provide better reading range when mounted on a metallic surface.

引用

页码：1142 / 1144

页数：3

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