September 1, 2023 at 10:57 am
Praneeth
Ansys Employee

Hi Sylvie,

Thank you for sharing the fix to your issue.

There should not be any air gaps between the surrounding walls along the edges of the model. Did you get rid of this gap or did you only increase the dimensions of PEC backing so that the PEC edges protrude out of the surrounding wall?

I could not respond to your previous reply in time but it's great that you were able to find a fix yourself.

Best regards,
Praneeth.