Title :
Ultra-Low Power Passive UHF RFID for Wireless Sensor Networks
Author :
Ramos, R. Morales ; Vaz, A. ; Pardo, D. ; Berenguer, R.
Author_Institution :
Inst. for Appl. Microelectron., Univ. of Las Palmas de G.C., Las Palmas de Gran Canaria
Abstract :
This paper presents two ultra-low-power voltage sensors and a voltage protection, to optimize the charge of the supply capacitor in passive UHF RFID sensors. The state-of-the-art in the field is analyzed and compared with the proposed circuits using a 0.35 mum 2P4M CMOS process. The measured current consumption of the voltage sensors are 70 nA and 0.2 nA at 3.3 V. The voltage protection circuit consumes less than 60 nA at 3 V. Additionally, a low power consumption voltage regulator is presented. Experimental results prove its proper operation.
Keywords :
CMOS integrated circuits; UHF integrated circuits; passive networks; radiofrequency identification; wireless sensor networks; CMOS process; supply capacitors; ultralow power passive UHF RFID; ultralow-power voltage sensors; voltage protection circuit; voltage regulator; wireless sensor networks; CMOS process; Capacitive sensors; Capacitors; Circuits; Current measurement; Passive RFID tags; Protection; Radiofrequency identification; Voltage; Wireless sensor networks;
Conference_Titel :
Digital System Design Architectures, Methods and Tools, 2008. DSD '08. 11th EUROMICRO Conference on
Conference_Location :
Parma
Print_ISBN :
978-0-7695-3277-6
DOI :
10.1109/DSD.2008.76
