Title :
Parametric interaction of acoustic-surface wedge waves
Author :
Mason, I.M. ; Motz, M.D. ; Chambers, J.
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
A slow nondispersive antisymmetric flexural wave is tightly bound to the apex of a wedge. An acoustic convolver, which takes advantage of its characteristics to enhance efficiency, is described. It is demonstrated that wedge waves can be generated and tapped using photolithographically defined transducers.
Keywords :
acoustic microwave devices; surface phenomena; transducers; ultrasonic propagation; ultrasonics; waveguides; PZT4; acoustic convolvers; characteristics; parametric interaction; photolithographically defined transducer; slow nondispersive antisymmetric flexural wave; spatially invariant polarisation field; surface phenomena; ultrasonic devices; waveguides; wedge waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720311
