Made some small modifications to better work with my printer.
1) The bottom part was slightly resized so I have to do less filing and cutting. The antenna should press in nicely. Add a small blob of hotglue on top of each gap afterwards to keep it in place.
2) The dome received a flat platform to increase adhesion. Brim with 5mm space will do the same thing, but since I print both parts together, I didn't want a brim on the bottom half.
It prints fine without supports that way when sliced in slic3r.

This combination saved my antennas twice already.. the dome is very sturdy, although it will crack, but it does save the antenna.

Mendel90

No

No

0.2mm

Doesn't matter

Printed in PETG, but PLA should work as well.