Antenna design check nRF52840 custom board

[TSalty21]

Hi,

I'm working on a gesture control glove and my board is built around the nRF52840 SoC. It's a project I'm building for personal use only.

It's still a work in progress, I'd like to know if the antenna design I took from the nRF52840 DK could work the way I put it on the board.

The board size might increase by a few millimeters, because I can't properly fit most vias,

and the connectors will be removed and replace by copper pads, but most of the layout is fixed.

The maximum distance I'd expect the device to work over is around 10 meters with no obstancles around.

Here's the drive link for the gerbers:

drive.google.com/.../view

Thanks,

Tamás

[TSalty21]

Which matching component values would work better for this pcb,

the ones given in the base reference layouts or the ones used in development kit?

or is that impossible to tell in beforehand?

[Andreas]

Hi,

 

I would start with the one in the reference layout (v1.1), that generally has a bit more margin on harmonic emissions. It is hard as you say to tell which components are optimal, this depends on how correctly the layout is replicated. Seemingly miniscule differences can have an impact, especially on harmonics, so we recommend that you always verify this behaviour in your prototoypes, and update the matching if needed. We can assist with this if you need.

 

Best regards,

Andreas