Title :
A passive UHF tag for RFID-based train axle temperature measurement system
Author :
Qian, Jianqin ; Zhang, Chun ; Wu, Liji ; Zhao, Xijin ; Wei, Dingguo ; Jiang, Zhihao ; He, Yuhui
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A fully integrated passive UHF RFID tag with embedded temperature sensor, compatible with the ISO/IEC 18000 type 6C protocol, is developed in a standard 0.18μm CMOS process, which is designed to measure the axle temperature of a running train. The consumption of RF/analog front-end circuits is 1.556μA@1.0V, and power dissipation of digital part is 5μA@1.0V. The CMOS temperature sensor exhibits a conversion time under 2 ms, less than 7 μW power dissipation, resolution of 0.31°C/LSB and error of +2.3/-1.1°C with a 1.8 V power supply for range from -35°C to 105°C. Measured sensitivity of tag is -5dBm at room temperature.
Keywords :
CMOS analogue integrated circuits; IEC standards; ISO standards; radiofrequency identification; temperature measurement; temperature sensors; ISO-IEC 18000 type 6C protocol; RF-analog front-end circuits; current 1.556 muA; current 5 muA; embedded temperature sensor; fully integrated passive UHF RFID tag; running train; size 0.18 mum; standard CMOS process; temperature -35 degC to 105 degC; temperature 293 K to 298 K; train axle temperature measurement system; voltage 1.0 V; voltage 1.8 V; Axles; CMOS integrated circuits; Protocols; Rectifiers; Sensitivity; Temperature measurement; Temperature sensors;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2011 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4577-0222-8
DOI :
10.1109/CICC.2011.6055420
