Question on drawing patch antenna feedpoint

Hi all,

I had finished a tutorial on how to draw a patch antenna in agilent ads. However, the drawing of feedpoint location is of a different topology as what i had learn.
I wish to include the feedpoint at the back of the patch antenna instead of running alongside with the patch surface. I have the location of the feedpoint. Can anyone advise on this?

Got it solved! However a new problem arised. I need a plot on feedpoint impedance vs freq. (matching at 50ohm) However, no matter where i change the location of the feedpoint the real imepdance plot i got is always between 0 to 1. I tried option>perference to change the scale but it remains. Centr frequency of 1.5GHz is perfectlytuned on the dote. I understand he impedance is not matched. PLs advice.