CST floquet port set up problem

[raihanreza]

hi
i am trying to do some simulation in CST . but when i try to use FSS template which automatically set up floquet port in zmin and zmax. but when i try to run the simulation it shows that it can not run the simulation as it contains disprsive material at zmin and zmax. how i can shift the floquet port to nodispersive material. the substrate and the patch both are dispersive.

 

[waterydan]

You could add space to the top plane and bottom plane,too.
And let the floquet port away from ur dispersive material.
try it