nRF52 PCB antenna design

RE: nRF52 PCB antenna design

FormerMember — Mon, 24 Oct 2016 12:53:24 GMT

There will be some signals from the chip without an antenna, the range will be short, but how short is hard to know before testing it. If there is very little space on your boards, I would recommend you to use a chip antenna.

RE: nRF52 PCB antenna design

raj — Fri, 21 Oct 2016 18:11:36 GMT

Thank you Kristin.

From 3mm x 0.76mm Antenna on Reference PCB do we get any Bluetooth signal at least for small ranges? or its must to have any one of recommended antenna from the above list. (for 3mm x 0.76mm PCB Antenna please see the reference PCB layout
infocenter.nordicsemi.com/index.jsp

Thank you, Raj

RE: nRF52 PCB antenna design

FormerMember — Fri, 21 Oct 2016 13:20:50 GMT

The reference layout shows the required components for matching the chip to 50 Ohm, creating a 50 Ohm reference point. In addition to the reference layout, an antenna is needed.

If you want to use a PCB antenna, I would either recommend the ~25 mm monopole antenna or the meander antenna on our nRF51-Dongle (smaller, but shorter range). It can also be useful to take a look at the "General PCB design guidelines for nRF52" tutorial.