A simple question about PCB antenna?

Have a question about PCB antenna in schematic. 

I am doing a design which include a bluetooth PCB antenna.This pcb antenna is only a trace. I am wondering should I put a schematic symbol of antenna in schematic, and then make a footprint of PCB antenna? Or leaving it along in schematic, and routing a trace of antenna in PCB layout?

By the way, how to draw a trace in PCB layout, WITHOUT solder mask?

Thanks