SURFACE ACOUSTIC WAVE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a miniaturized and lightened surface acoustic wave device. SOLUTION: At least one electrode provided on a langatite monocrystal substrate (LTG: La3Ta0.5Gas5.5O14) provided so as to become 9 deg.-16 deg., 146 deg.-160 deg. and 34 deg.-45 deg. in the Eulerian angle indication of a right hand system is equipped with a structure for making natural monophase unidirectionality appear together with the anisotropy of the langatite monocrystal substrate.