A newly developed radio frequency wireless passive highly sensitive strain transducer

Trang T. Thai, Herve Aubert, Patrick Pons, Robert Plana, Manos M. Tentzeris, Gerald R. DeJean

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    13 Citations (Scopus)


    A novel design of a highly sensitive wireless passive radio frequency strain transducer is presented based on a patch antenna loaded with an open loop that is capable of sensing strain remotely. The new idea of utilizing a cantilever at the gap of the open loop significantly improves the sensitivity of resonant frequency shifts. In measurements, the prototypes achieve a sensitivity of 1.26% frequency shift per 1% strain, while in simulations the new design achieves a theoretical sensitivity up to 4 times higher than existing designs of RF passive wireless strain transducers. The ground plane allows for the sensitivity of the sensor to be independent from the applied surface. An implementation example of the passive remote sensing system based on the proposed strain transducer is also discussed as a proof-of-concept.

    Original languageEnglish
    Title of host publicationIEEE Sensors 2011 Conference, SENSORS 2011
    Number of pages4
    Publication statusPublished - 2011
    Publication typeA4 Article in a conference publication
    Event10th IEEE SENSORS Conference 2011, SENSORS 2011 - Limerick, Ireland
    Duration: 28 Oct 201131 Oct 2011


    Conference10th IEEE SENSORS Conference 2011, SENSORS 2011

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering


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