https://devzone.nordicsemi.com/f/nordic-q-a/109748/nrf52840-and-nrf21540-rf-antenna-flex-pcbHi all, I am designing a wearable device with a strap (concept as attached image) I plan to design the RF antenna on the flex PCB and then place it inside the strap (strap and antenna position as attached picture) My device is using nRF52840 anden-USTelligent Community 13Tue, 02 Apr 2024 09:02:41 GMThttps://devzone.nordicsemi.com/thread/476482?ContentTypeID=1Tue, 02 Apr 2024 09:02:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:57baeb2a-5388-4350-b155-fb253c02fcf9Simonr<p>Hi</p> <p>Due to the Easter holidays we&#39;re a bit behind on handling cases I&#39;m afraid. We have a whitepaper for 1/4 wavelength monopole antennas available here. Other than that we don&#39;t have too much on design of antennas in flex PCBs:&nbsp;&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/101626/antenna-design-guidelines-on-flex-pcb">Antenna Design Guidelines on Flex PCB</a>&nbsp;</p> <p>&nbsp;Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/476373?ContentTypeID=1Sun, 31 Mar 2024 02:13:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:24a37edc-173a-48da-8cb4-66510af00de3Hiep Le<p>Hi guys,</p> <p></p> <p>Can anyone help me?</p><div style="clear:both;"></div>