Propagation characteristics of the pseudo-Rayleigh mode of the ridge guide for acoustic surface waves

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Propagation characteristics of the pseudo-Rayleigh mode of the ridge guide for acoustic surface waves

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An approximate but simple dispersion relation is derived for the pseudo-Rayleigh mode of the ridge waveguide. The wave is essentially nondispersive and its phase velocity is slightly lower than that of the Rayleigh wave.

Inspec keywords: acoustic microwave devices; dispersion relations; acoustic wave propagation; waveguides; guided electromagnetic wave propagation; ultrasonic propagation

Other keywords: propagation characteristics; ridge waveguide; dispersion relation; pseudo Rayleigh mode; acoustic surface waves

Subjects: Microwave circuits and devices; Acoustic wave devices; Waveguide and cavity theory; General linear acoustics

References

    1. 1)
      • I.M. Mason , R.M. de la Rue , R.V. Schmidt , E.A. Ash , P.E. Lagasse . Ridge guides for acoustic surface waves. Electron. Lett. , 395 - 397
    2. 2)
      • R.C.M. Li , H.L. Bertoni , A.A. Oliner , S. Markman . Simple equivalent network for the flexural mode of the ridge guide for acoustic surface waves. Electron. Lett. , 211 - 212
    3. 3)
      • Oliner, A.A., Li, R.C.M., Bertoni, H.L.: `Microwave network approach to guided acoustic surface wave structures', ECOM-0418-F, report PIBEP-71-092, Final report to US Army Electronics Command, Polytechnic Institute of Brooklyn report, August 1971.
    4. 4)
      • A.A. Oliner , R.C.M. Li , H.L. Bertoni . , Catalog of acoustic equivalent networks for planar interfaces.
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