About STM32WBA25 series PCB antenna

[CY_Tsai]

Hi : 

 

I’ve been working on planning an STM32WBA25 series product recently. Regarding the antenna design, I’ve been referencing ST’s development board “NUCLEO-WBA25CE1.” From the MCU pin, the signal goes through an IPD, then a matching network, and finally to the antenna.

Currently, the IPD is a major challenge for me. Is it possible to replace the IPD with discrete components?

[_Joe_]

Hi,

Yes, it is possible to replace the IPD with discrete components in the RF path.
You can have a look at application note AN5948; you should find what you need there.

For now, it does not include the WBA2, but a new version will be released in the coming weeks

BR, Joé

[CY_Tsai]

Hi Joé,

Thank you for your reply. Please let me know if there are any updates.

Sincerely,

Eric