Dear Nordic,
I'm designing a 0.6mm thick 6-layer rigid-flex with the nRF54L15-CAAA, and due to my current stack-up the ground polygon to trace clearance can only go as small as 0.1mm for a trace thickness of 0.177mm as otherwise anything like 0.15mm clearance will go to >2mm which due to my other rules for via to trace clearance and trace to pad does not comply when coming out from the ANT pin.
This has been assuming the output of the ANT pin is 50 Ohm matched, but otherwise, what is the ANT pin impedance and what are the requirements for routing before it goes out the double T network into my RF 50-Ohm matched trace?
If the output of the ANT pin could be narrower up to the first inductor then that would be great for my design to keep a safe trace to copper pour clearance, which currently stands at 0.2mm for the rest of my design.
Many thanks,
Oliver