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
收藏
页数：7
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