https://devzone.nordicsemi.com/f/nordic-q-a/6512/about-the-nrf2401l-rf-matching-problemThere is some doubt about the nRF2401L+ RF matching circuit.From the article of &lt;&lt;Tuning_the_nFR24xx_matching_network.pdf&gt;&gt; ,it says &quot;The balun-function is done by the 180&#176;phase shift in L1&quot;,I can not understand why only one inductor can achieve the balunen-USTelligent Community 13Mon, 06 Jul 2015 05:29:25 GMThttps://devzone.nordicsemi.com/thread/22739?ContentTypeID=1Mon, 06 Jul 2015 05:29:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6ce9434c-d35a-42a0-9d8f-295285106feaswoudlxy<p>I am also troubled by this problem and do not know the theory since a balun should be more complex than only one inductor... Do you have any feedback could share? Many thanks.</p><div style="clear:both;"></div>