A surface elastic wave resonator comprises a piezoelectric material to propagate the surface elastic waves and a transducer inserted between a pair of reflectors comprising combs of interdigitated electrodes and having a number Nc of electrodes connected to a hot spot and an acoustic aperture W wherein the relative permittivity of the piezoelectric material is greater than about 15, a product of Nc·W/fa for the transducer being greater than 100 μm·MHz−1, where fa is the antiresonance frequency of the resonator. A circuit comprises a load impedance and a resonator according to the invention and having an electrical response manifesting as a peak in the coefficient of reflection S11 at a frequency of a minimum value of the parameter S11 that is lower than −10 dB, the antiresonance peak of the resonator being matched to the impedance of the load.


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    Titel :

    One-port surface elastic wave resonator on high permittivity substrate


    Beteiligte:

    Erscheinungsdatum :

    2020-12-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H04B TRANSMISSION , Übertragung / B60C VEHICLE TYRES , Fahrzeugreifen / G01K MEASURING TEMPERATURE , Messen der Temperatur / G06K Erkennen von Daten , RECOGNITION OF DATA / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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