Assigning waveport error on my WR

[Lottarn]

Hi guys!

As you can see in the attached picture, I have two waveports and these are the red and green one. The red one is fine but when I try to assign waveport to my WR I get the following error:

Port refinement, process hf3d error: Port 2 does not have a solved inside material on either side.. Please contact Ansys techincal support.

How can I fix this?

Basically I'm going to design a CPW-to-WR transition where I am going to measure my return loss by simulating my S parameters.

Regards

 

[PlanarMetamaterials]

Have you assigned a volumetric PEC to the back side of the waveport? This is needed for correct operation when the port is internal to the simulation domain.

It could also be the case that the filling material inside the waveguide is not set correctly; check that this is the correct material (e.g., air or vacuum).