Title :
Acoustic surface waves on isopaustic glass
Author :
Sandbank, C.P. ; Butler, M.B.N.
Author_Institution :
Standard Telecommunication Laboratories Ltd., Harlow, UK
Abstract :
The construction of transducers for launching surface waves on nonpiezoelectric substrates is described. It is shown that efficient launching can be obtained using zinc-oxide films with a thickness of less than 5% the acoustic wavelength. Amorphous substrates can be used, and results are given for isopaustic glass which enables temperature stability of a few parts per million per degree Celsius to be obtained.
Keywords :
acoustic transducers; acoustic wave propagation; acoustic waves; films; glass; surface phenomena; thin films; transducers; zinc compounds; SiO2; amorphous substrates; glass; lithium niobate; nonpiezoelectric substrates; sonic propagation; surface phenomena; temperature stability; thin piezoelectric films; transducers; zinc oxide films;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710339
