LoRa PCB antenna design guidelines for EU868 frequency for STM32WL55JCI7

[Nikunj_17]

Hello STM Community ,

I am designing an internal PCB antenna for LoRa communication using the STM32WL55JCI7 at EU868 frequency. Is a PCB antenna recommended by STM for this chip? If so, what guidelines or procedures should I follow for designing a PCB antenna for LoRa communication? Additionally, what range can I expect with an optimized PCB antenna design?

Looking forward to your insights. Thanks!

[Uwe Bonnes]

Did you read

dm00660594-optimized-rf-board-layout-for-stm32wl-series-stmicroelectronics.pdf

and

https://www.ti.com/lit/an/swra228c/swra228c.pdf

?