Wireless ferroelectric resonating sensor

Ville Viikari, Heikki Seppä, Tomi Mattila, Ari Alastalo

    Research output: Contribution to journalArticleScientificpeer-review

    20 Citations (Scopus)


    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.
    Original languageEnglish
    Pages (from-to)785-791
    JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
    Issue number4
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed


    • sensors
    • wireless sensors
    • ferroelectric varactors


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