https://devzone.nordicsemi.com/f/nordic-q-a/918/is-there-anyone-help-me-checking-the-antennai need a help with the attenna design. here is the eagle files, i&#39;m not sure it is fine. i used a Balun BAL-NRF01D3 and my board thickness is 0.6mm. i need to know the copper thickness of the antenna and size. thanks!en-USTelligent Community 13Mon, 18 Nov 2013 14:59:59 GMThttps://devzone.nordicsemi.com/thread/4434?ContentTypeID=1Mon, 18 Nov 2013 14:59:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:61a06965-5b48-44c8-9d47-045301ce6640Hung Bui<p>Hi,</p> <p>You can follow <a href="http://www.nordicsemi.com/eng/nordic/download_resource/20344/5/66071392">this application note</a> to design your antenna. Any 2.4GHz antenna with 50 Ohm impedance should work. You can also follow our antenna in the Development Kit or Evaluation Kit as a reference.</p> <p>It should be noted that, you would need to add a tuning network to tune your antenna to match with 50 Ohm impedance requirement. Please follow this application note : <a href="http://www.nordicsemi.com/eng/nordic/download_resource/20347/3/8789442">http://www.nordicsemi.com/eng/nordic/download_resource/20347/3/8789442</a> regarding antenna tuning.</p><div style="clear:both;"></div>