ADS-B antenna extension?

From what we are seeing after removing the antena coax wire. Is that all pads here are all ground. And the pin for the antenna is also . Its seems to be all a big ground pad…is our board has a problem or is it intended to be that way. It seems this ufl trace has 3 ground pad. This implies a ufl connector should not be soldered to it the conventional way but rather flipping it around and soldering the center pin directly to the center pad of the ufl connector from under while soldering the connector 3 ground pad to the all the pads on the ufl trace as ground. Correct?

I noticed that all the pins there are ground. Did you find any solution to solder the uFL connector? or solder the wire directly to the SMA?