Abstract
The propagation characteristics of Rayleigh waves on a La3Ga5SiO14 substrate are theoretically investigated for all cuts and propagation directions. The results of the phase velocity, electro-mechanical coupling constant (K2), power flow angle (PFA) and temperature coefficient of delay (TCD) are shown as contour maps. The maximum value of K2 of a Rayleigh wave is 0.55%, and about 0.5% with zero TCD. These values are about 2–3 times larger than those of quartz. It is found that some cuts exist, which do not have a Rayleigh wave. The characteristics of leaky surface acoustic wave (SAW) on Z-cut La3Ga5SiO14 are also shown.
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