Title :
Wireless ferroelectric resonating sensor
Author :
Viikari, Ville ; Seppä, Heikki ; Mattila, Tomi ; Alastalo, Ari
Author_Institution :
VTT Tech. Res. Centre, Espoo, Finland
fDate :
4/1/2010 12:00:00 AM
Abstract :
This paper presents a passive wireless resonating sensor that is based on a ferroelectric varactor. The sensor replies with its data at an intermodulation frequency when a reader device illuminates it at 2 closely located frequencies. The paper derives a theoretical equation for the response of such a sensor, verifies the theory by simulations, and demonstrates a temperature sensor based on a ferroelectric varactor.
Keywords :
ferroelectric devices; temperature sensors; varactors; ferroelectric varactor; intermodulation frequency; passive wireless resonating sensor; reader device; temperature sensor; wireless ferroelectric resonating sensor; Equations; Ferroelectric materials; Frequency; Temperature sensors; Varactors; Wireless sensor networks;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2010.1482
