Propagation Characteristics of the Ridge Waveguide for Acoustic Surface Waves

Using a microwave network approach, approximate but simple dispersion relations are obtained for the "flexural" and "pseudo- Rayleigh" modes of the ridge waveguide. The propagation characteristics calculated from the relation for the " flexural" mode compare very well with experimental data over a wide frequency range; no accurate measurements are presently available for the "pseudo-Rayleigh" mode.