Title :
Acoustic-beam profiles in surface-wave filters
Author :
Kharusi, M.S. ; Tancrell, R.H. ; Williamson, R.C.
Author_Institution :
McGill University, Department of Electrical Engineering, Montreal, Canada
Abstract :
The diffracted-beam profiles launched at different frequencies by chirped and apodised elastic surface-wave interdigital transducers on anisotropic substrates are calculated by means of an angular spectrum of straight-crested surface waves and are shown to agree with experiment in both amplitude and phase.
Keywords :
filters; ultrasonic delay lines; ultrasonic transducers; acoustic beam profiles; angular spectrum; anisotropic substrates; apodised; chirped; diffracted beam; elastic surface wave; filters; interdigital; straight crested; transducers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720172
