I have a question regarding an integrated PCB Antenna that I would like to try out, however, if it fails I want to be able to use another SMA antenna. The PCB Antenna is an inverted F-antenna meaning that it will be "shorted" with one of its ends connected to GND, as seen in the attached picture.
I have added two 0 ohm resistors that I was planning to desolder depending on which antenna I am going to use. Now my question is if the PCB antenna only is connected to the GND (far left) and disconnected everywhere else (i.e. R6 is removed and only R4 remains), could this affect the performance of my SMA antenna?