https://devzone.nordicsemi.com/f/nordic-q-a/23346/determining-gain-of-trace-antennaI have a BLE circuit utilizing an NRF52832 cpu/integrated radio, necessary impedance matching network and a single ended micro-strip &quot;L&quot; antenna. How can I determine the gain mathematically? Is there an estimated number?en-USTelligent Community 13Fri, 07 Jul 2017 12:53:33 GMThttps://devzone.nordicsemi.com/thread/91782?ContentTypeID=1Fri, 07 Jul 2017 12:53:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a35607a1-1c57-420a-8f69-e8ad93a16494AmbystomaLabs<p>If you have a highly accurate model, most EM simulation packages can give you a reasonable estimate of peak gain. The model is only as good as your assumptions for dielectric constants, ground planes, copper conductivity, copper thickness, loss tangent, etc.</p> <p>Most antenna types have rough guesstimates of their theoretical peak gain. However this number could easily be +/- 3-6dB different from your actual implemented design. So, if you are not too picky then just google your antenna type and read up on it. Otherwise, you&#39;ll have to do an accurate EM simulation.</p><div style="clear:both;"></div>