A modified quasifield method of surface acoustic waves (SAW) interdigital transducers (IDT) electrical characteristics simulation without any phenomenological parameters was proposed. It allows simulating with high accuracy and operatively of the perspective SAW devices on the microwave frequency band for any IDT electrodes configurations with the consideration of the finite thickness of the electrodes, including taking into account of the layered structure of the electrodes with the adhesive sublayer. The results obtained by this method are in good agreement with the experimental data that were described in the literature.
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