bare pcb vs pcb assembly

[Bbrotherone]

Hello.

I plan to perform antenna matching to improve the performance of my design.

I would like to know any differences when performing the match on bare pcb and pcb assembly. I have seen many people do the matching with bare board. But, I guess the result would be different when all components are mounted on pcb. 

[Kaja]

Hi, 

you can do the tuning on a bare board, but you need to have mounted on components that will effect the antenna, ex: battery. 
Also having the enclosure to see how it affects the antenna is beneficial, so that you can tune the antenna accordingly. 

We can help you with RF measurements and antenna tuning, as preparation for certification. 

Best regards,
Kaja