https://devzone.nordicsemi.com/f/nordic-q-a/66974/u-fl-connector-keepout-areaHello, I am developing a wireless sensing device using the nRF24L01+ module and I&#39;m planning to use a u.FL connector in my design. I can&#39;t seem to find any manufacturer recommendations regarding correct board layout for a u.FL connector. Board Layouten-USTelligent Community 13Tue, 13 Oct 2020 11:25:47 GMThttps://devzone.nordicsemi.com/thread/274583?ContentTypeID=1Tue, 13 Oct 2020 11:25:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:06e5832b-c753-412d-a638-e146c7df9042ketiljo<p>Yes, that&#39;s good.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/274439?ContentTypeID=1Mon, 12 Oct 2020 22:14:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ec617bdb-af99-414d-9488-aee76b4ea03eDumbMechanicalGuy<p>Thank you for the response.</p> <p>The Hirose U.FL data sheet specifies a keep-out area which appears to be applicable on the 1st Layer:</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/HIROSE_5F00_Conn.png" alt=" " /></p> <p>I&#39;ll leave the ground plane under the connector / launch are solid.&nbsp; I&#39;ve found a couple example layouts where there is solid copper under the connector:</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/U.FL.png" alt=" " /></p> <p></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/274345?ContentTypeID=1Mon, 12 Oct 2020 13:28:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bcbce2c9-7eba-4e09-b33f-d93b45cd3d2bketiljo<p>Most probably, you don&#39;t need any cutouts around the U.FL connection. See if the manufacturer of the connector have any recommendations.</p> <p>Connect all ground planes firmly together with vias. You want a good, low impedance ground.&nbsp;</p><div style="clear:both;"></div>