Optimum cut for rotated Y-cut LiNbO3crystal used as the substrate of acoustic-surface-wave filters

Abstract
The existence of a new suppression cut to the most obstructive spurious component consisting of the slower shear wave propagatating in a crystal has been experimentally found out for acousticsurface-wave propagation on LiNbO 3 . The plate is a 127.86° rotated Y-cut X-propagating plate and has a large electromechanical coupling coefficient.