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

[Andreas]

Hi,

 

As you are using through vias for the GPIOs I would ideally want to see you try to fan the GPIOs out a little more before going through the via. This should hopefully not chop up the internal ground planes as much and provide the IC with a good ground connection.

 

You should also not ground the matching network capacitor closest to the ANT pin directly to the ground pour. Instead you should ground it into the center pad ground. Like in our reference layout:

 

Best regards,

Andreas