- Bridging the Terahertz Gap
- Modeling the Lithium-Ion Battery
- Protection contre la Corrosion
- Modélisation des batteries
- Modélisation et Simulation dans le développement des piles à combustible
- Modélisation thermique des petits satellites
- Analyse électro-vibroacoustique d'un transducteur à armature équilibrée
FEM Study on the Effect of Metallic Interdigital Transducers on Surface Acoustic Wave(SAW) Velocity in SAW Devices
In this paper, we present study on the mass loading effect of the interdigital transducer (IDT) on surface acoustic wave (SAW) velocity in SAW devices, using COMSOL Multiphysics.
We have simulated a one port SAW resonator made on YZ lithium niobate substrate and investigated the reduction of SAW velocity caused by the mass loading of aluminum IDT fabricated over the substrate, using finite element method by COMSOL Multiphysics. An Eigenfrequency analysis provided by COMSOL Multiphysics is useful in finding the true surface and bulk wave velocities in the absence of IDT.
It has been observed that in the presence of IDT, the surface wave velocity decreases, however, the bulk wave velocity is not affected. The surface plots of surface and bulk standing waves in the device with IDT and without IDT are shown.
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