ENGINEERING ANSWER
The connector-to-PCB transition is a three-dimensional RF structure. Its pin, ground tabs, board edge, finish and actual dielectric thickness must match the intended launch design.
What to decide before release
Begin with the connector manufacturer’s recommended stackup and footprint. Adapt it through simulation and measurement when your board differs. Keep reference planes and edge plating requirements explicit; even a short transition can dominate return loss.
Checks to put in your design brief
- Use the exact connector part number
- Check finished board thickness
- Plan calibration or de-embedding structures
Important distinction
A generic SMA footprint is not automatically suitable for every core thickness or frequency band.
Sources & basis
Material facts follow the cited source. Design checks are preliminary guidance, not supplier process instructions.