PCB Antenna for BLE

[Alan Ajit]

Dear Nordic,

I am started design PCB antenna for BLE (nRF 52840).

can i use the same 2.4 Ghz Wifi PCB antenna for BLE circuit designing?

Is there any modification i need to do?

I need an immediate reply for starting my designing please help me 

[Andreas]

Hi,

 

Yes, any 2.4 GHz antenna can be used. Just keep in mind that even if you replicate the antenna exactly it might require slightly different matching or tuning due to differences in ground plane and/or enclosure. If you are in doubt about your design please feel free to upload it here for a free review.

 

Best regards,

Andreas

[Alan Ajit]

Hii..

In the nordic 52840 usb dongle i found that only one RF feed point is provided.but as per our previous designs we have RF feedpoint and Gnd.

does it matter in the performance...?

[Andreas]

Hi,

 

Do you mean feed point on the antenna? Some antennas have one feed as the only connection, some (inverted-F style) has a ground short pin. Both are fine, just make sure you replicate all of a given antenna, and not make a mix of two or something.

 

Best regards,

Andreas

[Alan Ajit]

Hii.

is there any PCB antenna referance you can provide similar to your USB dongle..?

[Andreas]

Hi,

 

You can use the dongle HW files which you can find here. We also have a whitepaper on how to make a monopole antenna.

 

Best regards,

Andreas