port of monopole on PCB

Hi, I have a question about how to build the port of a monopole on PCB in HFSS. Because in measurement, I two slots on the corner of single layer PCB to make a signal patch. And then I connect the coaxial cable on the ground of PCB and solder the inner metal to the signal patch. Finally, I also soldered one copper wire on the signal patch. How do I build it on the HFSS?
The attached picture is the structure.