Title :
Generation of Bleustein--Gulyaev and bulk-shear waves by interdigital transducers on a piezoelectric ceramic
Author :
Milsom, R.F. ; Redwood, M.
Author_Institution :
Queen Mary College, Department of Electrical & Electronic Engineering, London, UK
Abstract :
Theoretical predictions are made of the piezoelectric generation of Bleustein--Gulyaev and bulk-shear waves by interdigital transducers on p.z.t.-4 ceramic. Variation with frequency and number of periods of each transducer is studied for both metallised and free-external-surface regions. Bulk-wave radiation patterns for the two sets of electrical boundary conditions are also studied.
Keywords :
acoustic surface wave devices; ceramics; piezoelectric transducers; Bleustein/Gulyaev waves; acoustic surface wave devices; bulk shear waves; ceramics; electrical boundary conditions; piezoelectric transducers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730306
