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PCB Antenna Design for STM32WL55 at EU868 – Guidance Needed

Nikunj_17
Associate III

‎2025-02-27 2:14 AM

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!

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3 REPLIES 3
STTwo-32
ST Employee

‎2025-03-25 5:01 AM

Hello @Nikunj_17 

There is not a particular design guide dedicated for antenna. But I may recommend you the:

You can also refer to the antenna of the MB1389.

Best Regards.

STTwo-32

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Nikunj_17
Associate III
In response to STTwo-32

‎2025-03-25 8:21 PM

Hello,
Thank you so much for your recommendation! Do you also have any reference board for a PCB antenna designed for LoRa communication at EU868?

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STTwo-32
ST Employee
In response to Nikunj_17

‎2025-03-26 2:05 AM - edited ‎2025-03-26 2:05 AM

Such a design does not exist, but you can refer to the antenna design of the MB1389 that I've mentioned on my first comment.

Best Regards.

STTwo-32 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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