https://devzone.nordicsemi.com/f/nordic-q-a/15170/nrf24l01-antenna-selectioni am working with nrf24l01 module with PA LNA circuitry for longer distance transmission.When i bought the module i received an antenna along with it which is an SMA antenna. i want to know based on what factors do i have to choose an antenna so thaten-USTelligent Community 13Fri, 15 Jul 2016 13:27:14 GMThttps://devzone.nordicsemi.com/thread/57914?ContentTypeID=1Fri, 15 Jul 2016 13:27:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8d4db34b-432e-4a4c-b67c-a8f0edbfe0d6&#216;yvind Karlsen<p>The <a href="https://en.wikipedia.org/wiki/Wavelength">wavelength</a> lambda is determined by the speed of light divided by the frequency of transmission.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/57913?ContentTypeID=1Fri, 15 Jul 2016 13:04:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e082ae46-9e07-4989-8cd4-a9db29752278rizwan<p>fine thats a good start for me. what do you mean by wavelength here? is it te on air data rate?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/57912?ContentTypeID=1Fri, 15 Jul 2016 10:51:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b31f3e22-bf69-4423-aa62-c7883a3ece7b&#216;yvind Karlsen<p>Hi,</p> <p>Any 50 Ohm 2.4 GHz antenna will work, performance depends on how good ground plane you can provide and the length on the antenna. In general the antenna should be around 3-4 cm long if operating in quarter wavelength, and 15-16cm long if you chose a five/quarter wavelength.</p> <p>Best regards,</p> <p>Øyvind</p><div style="clear:both;"></div>