https://devzone.nordicsemi.com/f/nordic-q-a/36496/ble-antenna-reviewHello, We designed an antenna for our new product and we would like to have your feedback on it before making the prototypes. Below is the design The dxf file is attached aswell Thank you in advanceen-USTelligent Community 13Tue, 17 Jul 2018 13:41:32 GMThttps://devzone.nordicsemi.com/thread/140405?ContentTypeID=1Tue, 17 Jul 2018 13:41:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:414d1c6a-6dc1-4d23-9a1f-0eb6692d7acbAndreas<p>Hi,</p> <p>&nbsp;</p> <p>What are the dimensions? I do not have SW to open the dxf file.</p> <p>&nbsp;</p> <p>In general these antennas can be dependent on the distance between the different turns/bends. Unless you have simulated it or verified you risk making PCBs with an antenna that does not work very well, and you might instead want to use an antenna that has already been verified, or e.g. a <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.whitepapers/dita/whitepapers/pdflinks/nwp_008.html?cp=11_17">quarterwave monopole</a> that is not as dependent on such factors.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>