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insertion loss (S21) and reflection loss (S11) of SAW acoustic delay lines (ADL)
Posted 2025/03/15 0:16 GMT-4 2 Replies
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I want to simulate SAW acoustic delay lines (ADL) by using COMSOL Multiphysics and find the insertion loss (S21) and reflection loss (S11).
I have seen research paper on "* Gigahertz Low-Loss and High Power Handling Acoustic Delay Lines Using Thin-Film Lithium-Niobate-on-Sapphire.*" and I want to find the following figure using COMSOL Multiphysics.
Fig. 3. Simulated ADL performance of 4.64 μm and LG of 10 μm. (a) Mode shape. (b) IL and RL. (c) Group delay. (d) Wideband performance
So, please give the detail step in COMSOL Multiphysics to find insertion loss (S21) and reflection loss (S11) corresponding to frequency domain and time domain study, condition for terminal and corresponding to formulas to find the IL and RL and how to find Group delay.
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There does not appear to be a posted example of SAW resonator analysis. However there is a SAW gas sensor example that might get you started.
You could also try contacting the authors of the paper, who may be willing to send you a simulation file.
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Hello, Have you solved the problem? I have the same issue.