Hello Nordic Team,
I am designing a custom PCB using the nRF52840 and a PCB trace antenna for 2.4 GHz BLE.
In my current design:
I will take nRF52840 dongle antenna design, impedance matching circuit and LC filter without any changes.
I have attached a screenshot of my RF layout showing:
- nRF52840 RF pin
- Matching network components
- RF trace routing
- PCB antenna feed trace
My question is about reusing the antenna design on other Nordic devices.
If I replace the nRF52840 with another Nordic SoC such as:
- nRF52832
- nRF5340
- nRF54L05
- nRF54L10
- nRF54L15
Can I reuse the same PCB antenna geometry and antenna feed layout, or is a new antenna design and matching network required for each device?
I understand that all devices operate in the 2.4 GHz band, but I would like to know:
- Whether the antenna geometry can remain unchanged.
- Whether the RF matching components must be redesigned for each SoC.
- Whether Nordic provides guidance on reusing antenna designs across different SoC families.
Thank you.
