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Rayleigh waves and leaky SAWs in periodic systems of electrodes: periodic Green functions analysis

Rayleigh waves and leaky SAWs in periodic systems of electrodes: periodic Green functions analysis

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A new method using periodic Green functions is developed and used to calculate dispersion curves and attenuation coefficients for Rayleigh waves and for leaky waves propagating in periodic systems of thin electrodes on piezoelectric substrates. Such basic parameters as stopband width, centre frequency of the stopband, attenuation in the stopband and resulting bulk-wave scattering are found for Rayleigh waves in YZ-LiNbO3 and leaky waves on 36° YX-LiTaO3 substrate with shorted or open electrodes.

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