rf design checkup nrf52832

[sonu singh]

[Andreas]

Hi,

 

The image is a little small, could you upload a larger one please, so we might be able to see the details?

 

Best regards,

Andreas

[sonu singh]

let me know if i need to make any changes .

i have another design which is exact copy of sparkfun design.if you flag up i will go for pcb printing withadding up some component.

if you need any other file please let me know.

i am really grateful for your help but i need quick assistance.

thanks and regards

[Andreas]

Hi,

 

The design looks good. Usually you can get a little better harmonics by grounding C28 to the center pad through pin 31, instead of to the ground pour. You might also want to add a shunt component(DNP at this time) near the antenna feed in case the antenna requires tuning.

 

Best regards,

Andreas

[sonu singh]

Hi Andreas 

what should i do for antenna tuning?

Should i apply silk screen over antenna feed?

Is my design will be best if i use Johnson ceramic antenna and matching chip.

kindly suggest me how to proceed.

[Andreas]

Hi,

 

See this document on antenna tuning. We can also help with this if you send the PCB to us.

 

A printed antenna is always preferred over a ceramic chip antenna provided you have space enough to accomodate it. They are generally better, easier/cheaper(less components) to tune and no extra BOM cost for the antenna itself.

 

Best regards,

Andreas