What changes would need to happen if the extra sensor space is not needed?

[Qqwy]

Dear Prof. Ferrero,

The UCA board is a wonderful project!
In our case, we will however not need to add any extra sensors to the board (we only want to connect a small button), and are hoping to keep the PCB small.
As far as I understood from watching the video of your presentation at the TTN conference, altering the PCB size would mean that the antenna itself would also need to be altered.

Is it possible to slightly modify the UCA board for this purpose, or would a complete redesign of the antenna be needed for such a situation?

Thank you for your time,

~Marten/Qqwy