Praneeth
Ansys Employee

Hi,

We appreciate your patience on this.

There is a option to restrict the number of mesh elements within a certain quantity.

Also, as per my experience you can model these very thin structures as 2D sheet object without losing the accuracy of the results in microwave frequencies.

Did you try simulating the model as it is with default settings in the said machine configuration?

All the very best,
Praneeth.