Question about routing RF SMA into wp77 series

Hi I was wondering if I can route SMA connectors directly into the RF main antenna pin on the wp77xx device. As in do I need any external filtering, capacitors, inductors ect (apart from traces being 50ohm). I assume I don’t since there wasn’t anything in the documentation but thought I would check.

Also on a side question can i run my bottom layer ground plane (main GND) under the traces and just have 50 ohm traces on the top layer for the dedicated RF ground/antenna input?.
Thank you

PCB image

Sorry I just realised the RF grounds aren’t separate haha I just changed it to one big ground plane my mistake