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

fYear

2008

fDate

3-5 Sept. 2008

Firstpage

671

Lastpage

675

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/DSD.2008.76

Filename

4669301