https://devzone.nordicsemi.com/f/nordic-q-a/1678/nrf24ap2-8ch-balun-smd-chip-antennaHi, I would like simplify the nRF24AP2-8CH signal RF output using a Balun with a chip antenna. What is the best way: the 2450BM14A0002 from Johanson, the BAL-NRF01D3 from ST or both? And what type of antenna may I use: the 2450AT18A100E from Johansonen-USTelligent Community 13Wed, 05 Mar 2014 13:41:40 GMThttps://devzone.nordicsemi.com/thread/7420?ContentTypeID=1Wed, 05 Mar 2014 13:41:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a40efe8e-3169-415d-b57b-d6a5355cb71aH&#229;kon Alseth<p>Hi Didier,</p> <p>Both BALUNs will work with the nRF24AP2, with equal performance when implemented according to the recommendations.</p> <p>When it comes to antennas, you can choose any chip antenna which is designed for 2.4 GHz. Since antennas are very application specific, in terms of size, placement, etc, it&#39;s hard for us to give an recommendation (especially since we use printed quarter wave antennas in all our designs). You have to choose one that fits into your application.</p> <p>What you will have to add (regardless of antenna choice) is components for tuning the antenna, usually a PI-network: <a href="http://en.wikipedia.org/wiki/Antenna_tuner#Pi_network">en.wikipedia.org/.../Antenna_tuner</a></p> <p>Also, make sure that you follow the chip antenna manufacturers recommendation towards layout and implementation.</p> <p>Best regards Håkon</p><div style="clear:both;"></div>