Hi, I am trying to understand scattering loss in bend when transitioning from a straight waveguide mode to a bent one with specific waveguide dimensions, 2.4um in width and 80nm in depth and bend radius of 50um. I did the simulations in both FDFD and varFDTD but I am getting different transmission even though I think both are identical otherwise. I expected both the results to be different but the difference in T is too big. Could you please help me with this?
September 4, 2024 at 8:33 pm
Amrita Pati
Ansys Employee
Hi Amogh,
Would you be able to share the screenshot of the geometry? I will recommend you to make sure that you are injecting the same mode (whether TE or TM) in both simulation. Have you tried performing any convergence testing, especially with respect to the mesh accuracy?
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