Equivalence of δ-function and equivalent-circuit models for interdigital acoustic-surface-wave transducers

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Equivalence of δ-function and equivalent-circuit models for interdigital acoustic-surface-wave transducers

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© The Institution of Electrical Engineers
Published

It is demonstrated that a complete admittance matrix for an interdigital acoustic-surface-wave transducer can be obtained from a simple δ-function model, and that the results are entirely equivalent to those obtained from some of the widely used equivalent-circuit models

Inspec keywords: equivalent circuits; acoustic transducers; modelling

Other keywords: admittance matrix; delta function; acoustic surface wave transducer

Subjects: Acoustic wave devices

References

    1. 1)
      • R.M. Bracewell . (1965) , The fourier transform and its applications.
    2. 2)
      • A.L. Nalamwar , M. Epstein . Immittance characterisation of acoustic surface wave transducers. Proc. Inst. Elec. Electron. Eng. , 336 - 337
    3. 3)
      • R.F. Mitchell . Generation and detection of sound by distributed piezoelectric sources. Philips Res. Rep.
    4. 4)
      • Bell, D.T., Hartmann, C.S., Smith, R.C.: `Measuring and modelling electrode reflections', Paper G3, IEEE ultrasonics symposium, 1971, Miami.
    5. 5)
      • W.R. Smith , H.M. Gerard , J.H. Collins , T.M. Reeder , H.J. Shaw . Analysis of interdigital surface wave transducers by use of an equivalent circuit model. IEEE Trans. , 856 - 865
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