SWF connector for customized PCB

[User1321]

Hi DevZone,

I have made a custom PCB with the nRF52832. I placed the same coaxial connector that is on the nRF52 DK in my PCB. At this point, I want to test the BLE functionalities.

The only connector that I can attach to this coaxial connector is another one from Murata (https://www.digikey.com/product-detail/en/murata-electronics-north-america/MXHS83QE3000/490-4982-ND/1775923)) ?

Is there any other connector that I can use to conenct an antena to the board?  Is there any otherMicrocoaxial RF Connectors that could be compatible with the SWF?

Is there any Stand Alone antenna recommended for testing?

Thanks!

[User1321]

I have checked and the dimensions are not the same.

But anyway,

Thank you.

[gcb]

Sigurd said:

The purpose of the SWF connector is to do RF measurements on a spectrum analyzer

When attaching the nRF21540-EK to an nRF52840-DK, how should the RF output from the nRF52840 SoC connect to the SMA connector on the nRF21540-EK? It seems that the SWF connector on any BLE / 802.15.4 Nordic DK isn’t solely for RF measurement purposes if you're using the nRF21540-EK and need to connect the RF path to the shield SMA connector. It requires a connection from the SWF connector on the nRF52840-DK to the SMA connector on the nRF21540-EK. This setup ensures that RF signals from the nRF52840 SoC are correctly routed and transmitted through the SMA connector on the nRF21540-EK.

Essentially, Nordic has equipped all their development kits (DKs) with a Murata SWF connector, where an SWF-to-SMA cable costs at least $30 each. I recently purchased two nRF21540-DB boards to set up four boards with this Front-End Module (FEM). I attached each nRF21540-EK shield to an nRF52840-DK, but now I’m facing an additional $60 expense for two cables just to connect the RF path to the nRF21540-EK shield.