Dear all, 

I am simulating an ungrounded coplanar waveguide (CPW) in CST Studio Suite 2022 with an anisotropic substrate (attachment cpw_aniso).

With the frequency domain solver I obtain the following error:
Anisotropic materials are not supported in the port mode calculation.

How can I simulate such a geometry?

Thanks.

​​​​​​​CST Studio Suite ​​​​​​​