PCB Antenna nrf51822

[Nasib]

Hello!

I am developing a pcb based on nrf51822. I am trying to copy the layout of the PCA10028 at first. But I will not use the coaxial connector for an external antenna.

How does the elimination of this component affect the impedance adaptation?

How should I modify the layout by removing this component?

Thank you!

[Nasib]

Hi thank you very much for your quick response. I have one last doubt. Do you think that in my design I have enough space for a healthy ground plane? (This is going to be a 2 layer pcb) and I'm going to put 2 GND planes (Top and Bottom).

[Andreas]

Hi,

 

Difficult to say yet, there seems to be quite a bit of traces to be routed all over the board but it should be possible to make it work quite well. Make sure you place down a lot of vias between top and bottom layer ground planes and see if you maybe are able to move stuff around a bit to maximize the area you can use as ground.

 

Best regards,

Andreas