virtual object in HFSS

Is there a way to assign an object as a virtual object (in HFSS)? Is virtual object any object with no material or boundary assigned to it?

Thanks in advance.

Hey Nova,

did you find a solution to your question, because I have got the same question and I would like to know how to create the virtual object, so that I can have a denser mesh around the antenna metallization.

thanks.

you can create a non-model object which won't affect on the any results.