Title :
Piezoelectric coupling coefficient of Bleustein-Gulyaev waves
Author :
Milsom, R.F. ; Redwood, M.
Author_Institution :
Queen Mary College, Department of Electrical & Electronic Engineering, London, UK
Abstract :
Five different theoretical methods of assessing the piezoelectric coupling coefficient of Bleustein-Gulyaev waves are described and compared. The dependence of the coupling of an interdigital transducer on the electrode-width/gap-between-electrodes ratio is described.
Keywords :
piezoelectric transducers; piezoelectricity; ultrasonic propagation; ultrasonic transducers; Bleustein-Gulyaev waves; piezoelectric coupling coefficient; ratio of electrode width to gap between electrodes; ultrasonic transducer; ultrasonic wave propagation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19700461
