Title :
Auto-tuning in passive UHF RFID tags
Author :
Seigneuret, Gary ; Bergeret, Emmanuel ; Pannier, Philippe
Author_Institution :
Dept. Microelectron., Inst. Mater. Microelectron. Nanosci. de Provence, Marseille, France
Abstract :
This paper presents a matching system which enhances compatibility of UHF RFID tags. It provides constant performance in every frequency band used in different countries. The bases of automatic tuning are presented here as well as a system architecture based on two PMOS capacitors. Simulations results from a prototype designed in a 0.18μm CMOS technology show that input power for all the bandwidth (860MHZ-960MHZ) is up to 3dB better with an auto-tuning system.
Keywords :
CMOS integrated circuits; MOS capacitors; UHF antennas; UHF circuits; circuit tuning; radiofrequency identification; CMOS technology; PMOS capacitors; UHF RFID tags; automatic tuning; bandwidth 860 MHz to 960 MHz; size 0.18 mum; Antennas; Bandwidth; Impedance; Radio frequency; Radiofrequency identification; Rectifiers; Tuning; Tuning; antennas; matching; power generation; rectifiers;
Conference_Titel :
NEWCAS Conference (NEWCAS), 2010 8th IEEE International
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-6806-5
Electronic_ISBN :
978-1-4244-6804-1
DOI :
10.1109/NEWCAS.2010.5603749
