Circularly Polarized V-Shaped Patch Antenna for RFID Application

被引：0

作者：

Pan, Yongsheng ^{[1
]}

Dong, Yuandan ^{[1
]}

Wang, Zhan ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu, Peoples R China

来源：

2019 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND USNC-URSI RADIO SCIENCE MEETING | 2019年

关键词：

circular polarization; patch antenna; RFID applications; V-shaped patch;

D O I：

10.1109/apusncursinrsm.2019.8889242

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 circularly polarized (CP) V-shaped patch antenna is proposed. Different from normal patch antennas, the suggested antenna employs a 3-dimentional V-shaped patch as the radiator. Two wings of the V-shaped patch gradually change antenna height and provide the impedance taper, therefore increases the bandwidth. The bottom of the "V" avoid large inductive reactance introduced by long feed probes. And a metal screw shorted to the ground has been added to significantly improve the impedance matching and CP performance. Good agreement has been observed between simulation and measurement. Measured results show that this antenna has an impedance bandwidth (vertical bar S-11 vertical bar < -10 dB) of 22 %, and a 3 dB AR bandwidth of 4.4 %, gain is around 8 dBi with a 915 MHz center frequency. Overall, the proposed antenna is very suitable for RFID applications.

引用

页码：1893 / 1894

页数：2

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