title: Wireless ferroelectric resonating sensor.
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.
authors.affiliation: VTT Technical Research Centre, Espoo, Finland. ville.viikari@vtt.fi
authors.forename: Ville
authors.initials: V
authors.lastname: Viikari
authors.forename: Heikki
authors.initials: H
authors.lastname: Seppa
authors.forename: Tomi
authors.initials: T
authors.lastname: Mattila
authors.forename: Ari
authors.initials: A
authors.lastname: Alastalo