High coupling and zero TCF SH-SAW and SH-Boundary SAW using electrodes/Rotated Y-X LiTaO3 and SiO2/electrodes/Rotated Y-X LiTaO3

In this paper, electrode Au/Rotated Y-X LiTaO₃ and SiO₂/electrode Au/ Y-X LiTaO₃ of SH-SAW without propagation attenuations are analyzed using the mass loading effects of electrodes and dielectric layers. Au/Rotated Y-X LiTaO₃ results show zero propagation attenuation and high coupling substrates of new cut angles with the TCF of - 20ppm/C at short surface. SiO₂/ Au/ Y-X LiTaO₃ results of SH-SAW surface wave show the zero propagation attenuation and high coupling substrates of new cut angles with the TCF of 0 ppm/C at SiO₂ thickness of H/λ=0.15 at the short surface. Also, we show new cuts of the higher k₂ and zero propagation attenuation substrate of Boundary SH-SAW with zero TCF. Also we show the experimental results of wide band and high Q resonators.