I wish to design and simulate a flexible antenna on HFSS 13.0. My problem is how can we deform the rigid box so that I can see the variation in s parameters with change in curvature of flexible antenna .
You can check S parameter like return loss, by going into the settings of HFSS. Just you will have select the structure where you want to see S-parameters or field variations and then go to the result icon view and check your parameters.