Title :
Efficiency enlargement of surface acoustic wave elastic convolver by emphasising nonlinear piezoelectric effect
Author :
Cho, Youngkyu ; Kadota, Mitsuhiro
Author_Institution :
Yamaguchi Univ., Ube, Japan
fDate :
6/10/1993 12:00:00 AM
Abstract :
The newly discovered effect concerning the enhancement of the nonlinear piezoelectricity of PZT ceramics by applying a bias electric field to the substrate has enabled more than 20 dB efficiency enlargement in a SAW elastic convolver.
Keywords :
lead compounds; piezoelectric materials; surface acoustic wave devices; PZT ceramics; PbSnO 3SbO 3-PbTiO 3-PbZrO 3; PbZrO3TiO3; bias electric field; efficiency enlargement; nonlinear piezoelectric effect; surface acoustic wave elastic convolver;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930745