Hello, I previously learned that the nRF54L15-DK only supports a single antenna for Bluetooth 6.0 channel ranging and lacks a multi-antenna design approach or official guidance for implementing multi-antenna configurations. I'd like to inquire whether

[Tinao]

Hello, I previously learned that the nRF54L15-DK only supports a single antenna for Bluetooth 6.0 channel ranging and lacks a multi-antenna design approach or official guidance for implementing multi-antenna configurations. I'd like to inquire whether any Nordic series development boards or chips supporting Bluetooth 6.0 channel ranging also support multi-antenna mode.

[Samruddhi Jadhav]

Hi,

Nordic's channel sounding implementation supports multi-antenna mode in the protocol stack and SDK. SoftDevice controller and libraries support multi-antenna channel sounding (up to 4 antenna paths configured with Kconfig options). However,  our docs don't mention any DKs with a already made multi-antenna channel sounding RF design. nRF54L series radio does support channel sounding but the nRF54L15 contains only one PCB antenna. If you want to use multi-antenna channel sounding, you can choose a board supporting channel sounding. Then, add an external RF switch or antenna network. You can use cs_antenna_switch_func() and devicetree to configure it. I would recommend you to take a look at our Multiple antennas documentation.

Best Regards,

Samruddhi

[Tinao]

As I am currently studying Bluetooth channel sounding with multiple antennas, but I only have an nRF54L15 at present, which has just one antenna, I would like to know whether Nordic offers any other development boards supporting Bluetooth channel sounding with multiple antennas.