Semi-Passive Time-Domain UWB RFID System

被引：24

作者：

Ramos, Angel ^{[1
]}

Lazaro, Antonio ^{[1
]}

Girbau, David ^{[1
]}

机构：

[1] Univ Rovira & Virgili, Dept Elect Elect & Automat Control Engn DEEEA, Tarragona 43007, Spain

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2013年 / 61卷 / 04期

关键词：

Continuous wavelet transform (CWT); radio-frequency identification (RFID); ultra-wideband (UWB); time domain; ANTENNA;

D O I：

10.1109/TMTT.2013.2247056

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：

This paper presents a semi-passive time-domain ultra-wideband (UWB) radio identification system. The reader consists of a commercial, low-cost, and integrated impulse-radio radar. The tag is composed of a UWB antenna loaded with a transmission line, which is in turn terminated with a PIN diode. The tag answers to the interrogator by backscattering, modulating the amplitude of the time-domain reflected pulses sent by the radar. A 2.4-GHz downlink channel is used to wake up the tag, in order to increase the lifetime of the battery. The wake-up circuit is based on a diode rectifier and the internal comparator within the tag chip (a microcontroller) without needing additional active devices. Experimental results obtained with a proof-of-concept tag show that read-ranges up to 8.5 m can be achieved.

引用

页码：1700 / 1708

页数：9

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