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Affiliations:
1: Department of Electrical Engineering & Electrophysics, Polytechnic Institute of Brooklyn, Farmingdale, USA
2: Department of Electrical Engineering & Electrophysics, Bell Telephone Laboratories, Whippany, USA
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.
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