Title :
Analysis of focused surface wave transducers
Author :
Kirci, M. ; Akcakaya, E.
Author_Institution :
Tech. Univ. of Istanbul, Turkey
fDate :
12/1/1990 12:00:00 AM
Abstract :
A new acoustic field analysis, based on the Huygens principles, is given for an elastic surface acoustic wave convolver made by using a focused transducer on a YZ-LiNbO3 piezoelectric crystal. In the acoustic field analysis, a new slowness function approximation is suggested for the anisotropy of the medium, instead of the conventional parabolic slowness function. The acoustic field analysis obtained by using this function is compared to the other analysis techniques and the results are discussed
Keywords :
acoustic field; lithium compounds; piezoelectric transducers; surface acoustic wave devices; ultrasonic transducers; Huygens principles; LiNbO3; YZ-LiNbO3; acoustic field analysis; anisotropy; elastic convolvers; elastic surface acoustic wave convolver; focused interdigital transducers; focused surface wave transducers; piezoelectric crystal; slowness function approximation;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
