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In this report, we propose improved substrate left and right boundary conditions for simulating SAW devices using ANSYS. Compared with the previous methods, the proposed method can greatly reduce computation time. Furthermore, the longer the distance from the first reflector to the last one, the more computation time can be reduced. To verify the proposed method, a design example is presented with device center frequency 971.14 MHz.
Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on (Volume:57 , Issue: 8 )
Date of Publication: August 2010