Hi everyone,
I have been trying to simulate a waveguide junction problem with waveguide ports to calculate the field distribution on the aperture. I have a 5 circular waveguide problem where I use only TE modes at the small waveguide port. On the other end I have used a port with 0 excitation from all the modes to ensure an absorbing boundary condition.
The problem is that I still get a finite z component for the aperture E field. However, from theory we know that the aperture fields for a TE mode should have a 0 z component. This I have observed in only 1 waveguide problem too. This also happens when the discretization is lambda/25. Is that a numerical artifact? I am adding the cfx file also to this thread.
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