Impedance Measurement usign H/F/S/S

Hi everybody!
Does somebody know how may I measure the impedance in some point o a circuit or antenna using HFSS 9??
Thanks everybody in advance!

you mean plane?
simulate it and get a report

First of all, thanks for such a fast reply!.
Not exactly, I have a CPW circuit, in fact a Chebshev impedance transformer. I want to know the simulated impedance- try to measure- at any point of the taper-impedance transformer.

Hope you may help me :)