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Calculation of the bandshape factor of a piezoelectric thin-film transducer

Calculation of the bandshape factor of a piezoelectric thin-film transducer

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This analysis examines the mechanical bandwidth of a particular transducer structure and gives a way to deduce the electrical bandwidth of the whole system from the electrical components of the circuit and the mechanical bandwidth. An example is given for a cadmium-sulphide transducer on sapphire with a gold intermediate electrode.

References

    1. 1)
      • J. de Klerk , E.F. Kelly . Vapor deposited thin film piezoelectric transducers. Rev. Sci. Instrum. , 506 - 510
    2. 2)
      • N.F. Foster . Cadmium sulphide evaporated layer transducers. Proc. Inst. Elect. Electronics Engrs. , 1400 - 1405
    3. 3)
      • T.M. Reeder . Microwave measurement of thin film transducer coupling constant. Proc. Inst. Elect. Electronics Engrs. , 1099 - 1101
    4. 4)
      • D.K. Winslow , H.J. Shaw . Multiple film microwave acoustic transducers. IEEE Internat. Convention Record , 26 - 31
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