Parametric Study of a Circularly Polarized Planar Antenna for Reader of UHF RFID System

被引：0

作者：

Suwalak, Rattapong ^{[1
]}

Phongcharoenpanich, Chuwong ^{[1
]}

机构：

[1] King Mongkuts Inst Technol Ladkrabang, Fac Engn, Res Ctr Commun & Informat Technol, Bangkok 10520, Thailand

来源：

2007 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5 | 2007年

关键词：

circular polarization; planar antenna; UHF RFID antenna;

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：

This paper presents the design of circularly polarized elliptical patch antenna (EPA) that radiates unidirectional beam A circularly polarized patch antenna was investigated for the reader of the Radio Frequency Identification (RFID) at Ultra High Frequency (UHF) band. The center frequency is 923 MHz with the bandwidth from 920 MHz to 925 MHz The antenna structure is simple because we use the single feed for circular polarization. The prototype antenna was fabricated to measure the antenna characteristics. The pattern is unidirectional pattern with directivity of 8.93 dBi and axial ratio of 1.88 dB at the center frequency. The obtained bandwidth is 15 MHz.

引用

页码：2104 / +

页数：2

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