Title :
Ridge guides for acoustic surface waves
Author :
Mason, I.M. ; De La Rue, Richard M. ; Schmidt, R.V. ; Ash, E.A. ; Lagasse, P.E.
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
A low-velocity flexural mode has been excited on acoustic-surface-wave topographic guides. With structures offering some hope of realisation at high frequencies, very strong confinement of the guided wave is obtained. Q factors in excess of 1000 have been observed on a ring resonator only ten wave lengths in diameter.
Keywords :
acoustic wave propagation; surface phenomena; waveguides; Rayleigh velocity; acoustic surface waves; ring resonator; sonic propagation; surface phenomena; thin film guide; topographic guide; transducer; waveguides;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710269
