A Compact RFID Reader Antenna for UHF Near-Field and Far-Field Operations

被引：2
|
作者：
Zheng, Lai Xiao [1 ]
Xie Zeming [2 ]
Cen Xuanliang [2 ]
机构：
[1] S China Univ Technol, Sch Comp Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] S China Univ Technol, Sch Elect & Informat, Guangzhou 510641, Guangdong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2013年 / 2013卷
基金：
中国国家自然科学基金;
关键词：
LOOP ANTENNA;
D O I：
10.1155/2013/961042
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 compact loop antenna is presented for mobile ultrahigh frequency (UHF) radio frequency identification (RFID) application. This antenna, printed on a 0.8 mm thick FR4 substrate with a small size of 31 mm x 31 mm, achieves good impedance bandwidth from 897 to 928 MHz, which covers USA RFID Band (902-928 MHz). The proposed loop configuration, with a split-ring resonator (SRR) coupled inside it, demonstrates strong and uniform magnetic field distribution in the near-field antenna region. Its linearly polarized radiation pattern provides available far-field gain. Finally, the reading capabilities of antenna are up to 56 mm for near-field and 1.05 m for far-field UHF RFID operations, respectively.
引用
收藏
页数：5
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