Regarding PCB antenna design

[Roshan Prajapati]

Hi,

  We are developing the application with nrf52840 where we are designing our own PCB with nrf52840 IC. So, please give recommended antenna design details. The dimension of our PCB board will be approx. 50mm x 50mm which is planned for fitting on the employee ID card. kindly, do the needful. thanks in advance.

regards,

Roshan.

[Roshan Prajapati]

Hi Jonathan,

Thanks a lot for the input. We will check on the details which you have provided to us and if there is any query i will ping you on the same case ID -261135. 

Regards ,

Roshan.

[Roshan Prajapati]

Hi Jonathan,

we have tested the dk board works fine . please, confirm weather we can duplicate the antenna design in nrf52840 development kit with same dimensions for our design. our pcb dimension is 55mm*50 mm.

Regards,

Roshan.

[JONATHAN LL]

Hi,
The Thingy 52 is approximately 50mm * 50mm in size so if you want a product that is similar in size to compare results and antenna performance then that might be the best place to start. I don't know how much components and sensors you are going to have on the pcb you are making but the antenna performance does depend on the available ground plan among other things. 

There should be no issue to copy either of the PCB antenna designs as long as you follow the guidelines. You can always ask for a review of the design and layout and we will provide feedback. 

Regards,
Jonathan

[Roshan Prajapati]

Hi Jonathan,

Below is our PCB Antenna design. Please check and give us your review comments to us and also please tell us if any more details required for your review.

[JONATHAN LL]

Hi

To get the best review a full overview of all the layers of the pcb is required. 
If you can provide the GERBER files to you pcb and the schematic that would be of great help. If you dont want to share everything publicly you can create a new privat Devzone case and name it nrf52840 design review. 

Regards,
Jonathan

[Roshan Prajapati]

Hi Jonathan,

I have informed my senior team mate for the GERBER files. once I get the file from him I'll share in private Devzone case as you've mentioned "nrf52840 design review" or else if possible I will share in the same case.

Best Regards,

Roshan.

[Roshan Prajapati]

Hi Jonathan,

The private case has been created and GERBER file have been attached on the case. The Case ID is 262762. Kindly, check on the case and give your review comments to us.

Regards,

Roshan.

[Animesh Sachan]

Hi Roshan,

Can you post the findings of this thread. It would be helpful for develeopers like us. Also let us know the performance of the antenna you designed and what are the changes you made to make it a good design.

Thank you!