Reference design for Johansen chip antenna.https://devzone.nordicsemi.com/f/nordic-q-a/62141/reference-design-for-johansen-chip-antennaI plan to connect an nRF52810 bluetooth output to a Johansen Tech 2450AT07A0100 chip antenna via a Johansen 2450FM07A0029 impedance matching chip. Do you have a BT SIG approved layout for such a connection? Will potting in epoxy resin change the tuningen-USTelligent Community 13Thu, 04 Jun 2020 14:29:54 GMTRE: Reference design for Johansen chip antenna.https://devzone.nordicsemi.com/thread/253336?ContentTypeID=1Thu, 04 Jun 2020 14:29:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:013386d5-c10e-4d22-8717-b843d5a53dcaKaja<p>Hi,<br /><br />we do not, and all end product designs should do RF-PHY, since a<span>ny changes to the layout would trigger a re-assessment and Bluetooth RF-PHY re-test, even if they try to copy a reference.<br /><br /></span>Epoxy will influence the antenna tuning yes, and the antenna should be tuned with epoxy and the enclosure around.&nbsp;<br /><br />We are always happy to help you in your design process and give HW reviews.&nbsp;<br /><br />Best regards,<br />Kaja</p><div style="clear:both;"></div>