Question about custom Antenna design

Hi,

I'm fairly new to KiCad and want to design a PCB that is just a custom Antenna shape connected to an SMA-connector (as well as a ground plane). For the Antenna I think I would struggle drawing it in KiCad, so I thought of drawing it in Autodesk Fusion and then importing something like a DXF file into KiCad.

My question is what would be the way to go here? If I create a new symbol for the Antenna and use the DXF file as the footprint, I would get the whole antenna at the surface which I do not want. If I don't import it as a footprint, where else would I import it?

Thanks!