In general terms, using the same GND is correct, but you need to be sure all the high speed digital signals are not in the GND path that will go from antenna to RF link. Put some picture of your prototype if you need additional help.
In general terms, using the same GND is correct, but you need to be sure all the high speed digital signals are not in the GND path that will go from antenna to RF link. Put some picture of your prototype if you need additional help.