UHF RFID tag antenna based on the DLS-EBG structure for metallic objects

被引：9
作者：
Li, Xiuping [1 ,2 ]
Gao, Gege [1 ,2 ]
Zhu, Hua [1 ,2 ]
Li, Quanping [1 ,2 ]
Zhang, Ning [1 ,2 ]
Qi, Zhenguo [1 ,2 ]
机构：
[1] Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China
[2] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Universal Wireless Commun, Beijing, Peoples R China
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2020年 / 14卷 / 07期
基金：
中国国家自然科学基金;
关键词：
equivalent circuits; UHF antennas; photonic band gap; impedance matching; radiofrequency identification; vias; UHF RFID tag antenna; DLS-EBG structure; metallic objects; ultra-high-frequency band; DLS-EBG unit cell; symmetrical double-layer structure; tag miniaturisation; equivalent circuit model; reflection phase characteristics; metal plate changes; compact radiofrequency identification tag antenna; double-layer symmetric electromagnetic band gap structure; offset vias; equivalent isotropic radiated power; frequency; 876; 0 MHz to 992; 0; MHz;
D O I：
10.1049/iet-map.2019.0780
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：
In this study, a novel compact radio frequency identification (RFID) tag antenna with a combination of a dipole and the double-layer symmetric electromagnetic band gap (DLS-EBG) structure is proposed for metallic objects in ultra-high-frequency (UHF) band. The DLS-EBG unit cell consists of a symmetrical double-layer structure and offset vias for tag miniaturisation. The equivalent circuit model of the unit cell is developed to analyse reflection phase characteristics. The measurement results show that the bandwidth ranges from 876 to 992 MHz and the impedance matching of the tag remains stable as the metal plate changes. The reading distance of the tag on the metal plate is up to 12.3 m under the transmitted equivalent isotropic radiated power (EIRP) of 36 dBm. Measurement and simulation results agree well.
引用
收藏
页码：567 / 572
页数：6
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