CPW-Fed Wideband Circular Polarized Antenna for UHF RFID Applications

被引：2

作者：

Kim, Sun-Woong ^{[1
]}

Kim, Guen-Sik ^{[1
]}

Choi, Dong-You ^{[2
]}

机构：

[1] Chosun Univ, Grad Sch, Dept Informat & Commun Engn, Gwangju, South Korea

[2] Chosun Univ, Dept Informat & Commun Engn, Gwangju, South Korea

来源：

INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2017年 / 2017卷

基金：

新加坡国家研究基金会;

关键词：

Antenna grounds - Slot antennas - Circular polarization - Directional patterns (antenna) - Radio frequency identification (RFID) - Mobile antennas - Antenna feeders - Electric impedance;

D O I：

10.1155/2017/3987263

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：

We propose a wide bandwidth antenna with a circular polarization for universal Ultra High Frequency (UHF) radio-frequency identification (RFID) reader applications. To achieve a wide 3 dB axial ratio (AR) bandwidth, three T-shaped microstrip lines are inserted into the ground plane. The measured impedance bandwidth of the proposed antenna is 480 MHz and extends from 660 to 1080 MHz, and the 3 dB AR bandwidth is 350 MHz and extends from 800 to 1155 MHz. The radiation pattern is a bidirectional pattern with a maximum antenna gain of 3.67 dBi. The overall size of the proposed antenna is 114 x 114 x 0.8mm(3).

引用

页数：7

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