Novel microfluidic structures for wireless passive temperature telemetry medical systems using radar interrogation techniques in ka-band

Sofiene Bouaziz, Franck Chebila, Anya Traille, Patrick Pons, Hervé Aubert, Manos M. Tentzeris

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    28 Sitaatiot (Scopus)

    Abstrakti

    We present a new miniaturized (below 1 mm3) temperature sensor based on microfluidic technology and radar passive interrogation principles, which can be easily applied for temperature telemetry for medical applications. The chipless microsystem is made up of a planar-gap capacitor with a microchannel located in between its plates. The temperature-dependent expansion/shrinkage of the water inside the microchannel modifies in a monotonic way the liquid level across the capacitor. The resulting change in the effective permittivity modifies the capacitance value in a temperature-dependent way. The first prototypes of the temperature microsensor were micromachined and integrated with an antenna, while the ambient temperature was remotely measured using frequency-modulated continuous-wave (FMCW) radar interrogation principles at 29.75 GHz. Preliminary measurement results demonstrated a 0.4 dBm/°C sensitivity over a 9°C temperature range (24°C-33°C).

    AlkuperäiskieliEnglanti
    Artikkeli6417945
    Sivut1706-1709
    Sivumäärä4
    JulkaisuIEEE Antennas and Wireless Propagation Letters
    Vuosikerta11
    DOI - pysyväislinkit
    TilaJulkaistu - 2012
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    !!ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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