Intermodulation read-out principle for passive wireless sensors

Ville Viikari, Heikki Seppä, Kim Dong-Wook

    Research output: Contribution to journalArticleScientificpeer-review

    24 Citations (Scopus)

    Abstract

    This paper presents a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor, and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies, it replies the sensor data at an intermodulation frequency. An analytical expression for the intermodulation response of the sensor is derived and verified by simulations. The concept is demonstrated at 1.2 GHz.
    Original languageEnglish
    Pages (from-to)1025-1031
    Number of pages7
    JournalIEEE Transactions on Microwave Theory and Techniques
    Volume59
    Issue number4
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Intermodulation
    intermodulation
    sensors
    Sensors
    varactor diodes
    Varactors
    simulation

    Keywords

    • Mixers
    • RF identification (RFID)
    • wireless sensors

    Cite this

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    title = "Intermodulation read-out principle for passive wireless sensors",
    abstract = "This paper presents a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor, and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies, it replies the sensor data at an intermodulation frequency. An analytical expression for the intermodulation response of the sensor is derived and verified by simulations. The concept is demonstrated at 1.2 GHz.",
    keywords = "Mixers, RF identification (RFID), wireless sensors",
    author = "Ville Viikari and Heikki Sepp{\"a} and Kim Dong-Wook",
    year = "2011",
    doi = "10.1109/TMTT.2011.2108309",
    language = "English",
    volume = "59",
    pages = "1025--1031",
    journal = "IEEE Transactions on Microwave Theory and Techniques",
    issn = "0018-9480",
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    Intermodulation read-out principle for passive wireless sensors. / Viikari, Ville; Seppä, Heikki; Dong-Wook, Kim.

    In: IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 4, 2011, p. 1025-1031.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Intermodulation read-out principle for passive wireless sensors

    AU - Viikari, Ville

    AU - Seppä, Heikki

    AU - Dong-Wook, Kim

    PY - 2011

    Y1 - 2011

    N2 - This paper presents a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor, and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies, it replies the sensor data at an intermodulation frequency. An analytical expression for the intermodulation response of the sensor is derived and verified by simulations. The concept is demonstrated at 1.2 GHz.

    AB - This paper presents a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor, and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies, it replies the sensor data at an intermodulation frequency. An analytical expression for the intermodulation response of the sensor is derived and verified by simulations. The concept is demonstrated at 1.2 GHz.

    KW - Mixers

    KW - RF identification (RFID)

    KW - wireless sensors

    U2 - 10.1109/TMTT.2011.2108309

    DO - 10.1109/TMTT.2011.2108309

    M3 - Article

    VL - 59

    SP - 1025

    EP - 1031

    JO - IEEE Transactions on Microwave Theory and Techniques

    JF - IEEE Transactions on Microwave Theory and Techniques

    SN - 0018-9480

    IS - 4

    ER -