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Port S-parameters in 3D and 2D axisymmetric simulations
Posted 22 août 2016, 09:06 UTC−4 RF & Microwave Engineering Version 5.2 0 Replies
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I simulate an open dielectric waveguide that has finite length and consists only of a core. This waveguide is excited on the one side with its fundamental mode (HE11 mode). I want to achieve reflection coefficent for this mode and for other modes, so I look for abs(S11), abs(S21)...
I've simulated this model in 3D and 2D axisymmetric geometry to verify them. The field distributions look identical for 3D and 2D simulations, but S-parameters are different. Does anyone have ideas why they are different?
Hello Evgeniy Kuznetsov
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