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We investigate the effect of the viscous dissipation and the graded factor of functionally graded piezoelectric material (FGPM) on the dispersive and attenuated characteristics of SH surface acoustic wave propagation in a layered piezoelectric structure, which involves a thin FGPM layer bonded perfectly to an unbounded elastic substrate. The piezoelectric material is polarized in z-axis direction...
The characteristic of wave propagation in finite elastic solids is a major issue for surface acoustic wave (SAW) devices, which are designed based on accurate analysis. As a result, it is essential in engineering applications to analyze the SAW propagation in finite piezoelectric solids with the objective of revealing the influence of structural changes. As the finite element analysis of solids is...
The wireless communication technology demands for smaller size, high frequency, high performance, low energy consumption, and low cost RF components. Current products based on dielectric or SAW resonators are not enough either due to the size or the circuit loss. Film bulk acoustic resonators (FBAR) are the latest technology offering small size and high frequency RF components to the fast growing...
The rapid development of wireless communication technology and the clear trend of higher frequency, miniaturization, and integration of RF components have provide opportunities through the research and production of thin film bulk acoustic resonators (TFBAR). In the design of TFBAR products, how to determine the frequency is always the starting point. The thickness-extension type of resonators can...
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