https://devzone.nordicsemi.com/f/nordic-q-a/126735/ref-design-antenna-is-not-voided-of-ground-plane-under-antenna-section-why-notI understand that the rf path should be 50 ohm coplaner to the output matching network that should be placed very close the the NRF chip. The recommendation shown in the reference designs is to use a distant ground layer to that point. Is there guidanceen-USTelligent Community 13Wed, 28 Jan 2026 08:11:47 GMThttps://devzone.nordicsemi.com/thread/559751?ContentTypeID=1Wed, 28 Jan 2026 08:11:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7e0693fa-04a9-45cc-82fa-7eeb71237ccfmathiaso<p>Hi, Steve.</p> <p>The nRF52840 reference layout only concerns the area immediately around the SoC. If you have a look at the layout of the nRF52840 DK, which is downloadable as part of the hardware files found <a href="https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK/Download?lang=en#infotabs">here</a>, you&#39;ll see that there is a <a href="https://docs.nordicsemi.com/bundle/WP_PDF/resource/nwp_008.pdf">quarter-wave monopole PCB antenna</a> included. If you choose to use a chip antenna, its datasheet should describe what the layout around it should look like.</p> <p>Best regards,<br />Mathias</p><div style="clear:both;"></div>