A Reflection-Amplifier-Based Long-Range Semi-Passive UHF RFID Tag With Standard Compatibility

被引：3

作者：

Li, Gang ^{[1
,3
]}

Chen, Mengqi ^{[1
]}

Zhao, Fading ^{[2
]}

Li, Zhenbing ^{[1
]}

Inserra, Daniele ^{[1
]}

Li, Gang ^{[1
,3
]}

Wen, Guangjun ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 611731, Sichuan, Peoples R China

[2] Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610066, Sichuan, Peoples R China

[3] Univ Elect Sci & Technol China, Sch Informat & Software Engn, Chengdu 611731, Sichuan, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2023年 / 33卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Backscattering; radio frequency identification (RFID); reflection amplifier (RA); RADIO;

D O I：

10.1109/LMWT.2023.3293851

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：

An ultrahigh-frequency (UHF) radio frequency identification (RFID) tag structure which includes both received signal demodulation and reflected signal amplification abilities for standard compatibility is described in this letter. To let demodulation and reflected signal amplification features coexist, a simple RF switch is used to separate the reception and reflection signal paths, and a reflection amplifier (RA) is connected to one of the two RF switch paths to realize the amplified reflection state. The RF switch can guarantee good impedance matching under reception/reflection conditions; moreover, by selecting it judiciously, i.e., with a low insertion loss, it is possible to simultaneously achieve high tag sensitivity and reflection amplification. Measurement on a tag prototype has revealed a maximum read range of 96 m (with a tag sensitivity of $-$ 42 dBm) and an average power consumption of 1.134 mW.

引用

页码：1373 / 1376

页数：4