https://devzone.nordicsemi.com/f/nordic-q-a/64784/need-help-in-designing-the-antenna-circuit-designHello Team, We are working on PCB design using the nRF51822 QFAA and we have some questions regarding the antenna circuits and antenna PCB design . we are referring the nRF51822 Product Specification v3.3 and have came across the reference designen-USTelligent Community 13Tue, 18 Aug 2020 17:13:35 GMThttps://devzone.nordicsemi.com/thread/265187?ContentTypeID=1Tue, 18 Aug 2020 17:13:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d098f22f-b70e-4510-9e1b-b1439b9fc37eJuzerT<p>Thank you ketiljo for you help.</p> <p>I will go through the information provided and will reach back if I am stuck anywhere.</p> <p>Thanks again for your help.</p> <p>Regards,</p> <p>Juzer T</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/264632?ContentTypeID=1Fri, 14 Aug 2020 13:03:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:64818fa1-bc48-4943-acf2-6616139b9510ketiljo<p>Take a look at the nRF51822 reference design. All the components here are mandatory. Also note the layout of the matching network (from ANT1 and 2 to the 50 ohm interface).&nbsp;<a href="https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF51822">https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF51822</a></p> <p>The antenna comes in addition to this, The antenna may or may not need additional tuning components. See this whitepaper for more:&nbsp;<a href="https://infocenter.nordicsemi.com/pdf/nwp_017.pdf">https://infocenter.nordicsemi.com/pdf/nwp_017.pdf</a></p> <p>Also take a look how it&#39;s done on the nRF51822-DK:&nbsp;<a href="https://www.nordicsemi.com/-/media/Software-and-other-downloads/Dev-Kits/nRF51-DK/nRF51-DK---Hardware-files-1_2_0.zip">https://www.nordicsemi.com/-/media/Software-and-other-downloads/Dev-Kits/nRF51-DK/nRF51-DK---Hardware-files-1_2_0.zip</a></p><div style="clear:both;"></div>