Title :
A comprehensive mapping of surface acoustic wave properties on gallium orthophosphate (GaPO4)
Author :
Briot, E. Henry ; Bigler, E. ; Daniau, W. ; Marianneau, G. ; Pakfar, A.
Author_Institution :
LPMO, Univ. de Franche-Comte, Besancon, France
Abstract :
A comprehensive mapping of Rayleigh wave (SAW) properties (velocities, temperature effects, electromechanical coupling factors, power flow angles, reflection coefficients) has been carried out for Gallium Orthophosphate (GaPO4), a piezoelectric material of the same crystalline 32-class as quartz. It is shown that several temperature-compensated cuts exist, and that maximum electro-mechanical coupling factors are 4 times higher than (ST,X) quartz. Experimental SAW velocities and temperature effects measured on devices built on singly-rotated plates are also reported
Keywords :
Rayleigh waves; gallium compounds; piezoelectric materials; surface acoustic waves; GaPO4; Rayleigh wave; SAW velocity; electromechanical coupling factor; gallium orthophosphate; piezoelectric material; power flow angle; reflection coefficient; singly rotated plate; surface acoustic wave properties; temperature compensation; temperature effect; Acoustic propagation; Acoustic waves; Load flow; Mechanical factors; Reflection; Strips; Surface acoustic waves; Temperature measurement; Temperature sensors; Velocity measurement;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841429
