https://community.nxp.com/t5/Wireless-MCU/PN5180-Antenna-Matching/m-p/1304626#M11335 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="6b018515d9532a44a59cc6974b8c234.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/149244i36F51D3A5539D139/image-size/medium?v=v2&amp;px=400" role="button" title="6b018515d9532a44a59cc6974b8c234.png" alt="6b018515d9532a44a59cc6974b8c234.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="72f97047ad13f09e7b8e5161c1b0dbd.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/149245iDB36F3EF64257EA1/image-size/medium?v=v2&amp;px=400" role="button" title="72f97047ad13f09e7b8e5161c1b0dbd.png" alt="72f97047ad13f09e7b8e5161c1b0dbd.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="6ac8d7e2ef9d93ae5a1db7124154884.jpg" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/149246iD184376B17E8E097/image-size/medium?v=v2&amp;px=400" role="button" title="6ac8d7e2ef9d93ae5a1db7124154884.jpg" alt="6ac8d7e2ef9d93ae5a1db7124154884.jpg" /></span></P><P>&nbsp;</P><P>Dear Sir,</P><P>When I use the VNA to measure the PN5180 antenna, but the result shows:</P><P>The NanoVNA shows:</P><P><EM>Return Loss: -5dB</EM><BR /><EM>Z =&nbsp; 133R&nbsp;@13.56MHz</EM></P><P><SPAN>Is the antenna matching result not good for PN5180? And how to solve it?</SPAN></P> Thu, 08 Jul 2021 08:40:46 GMT Thomas_jjzhou 2021-07-08T08:40:46Z https://community.nxp.com/t5/Wireless-MCU/PN5180-Antenna-Matching/m-p/1304626#M11335 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="6b018515d9532a44a59cc6974b8c234.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/149244i36F51D3A5539D139/image-size/medium?v=v2&amp;px=400" role="button" title="6b018515d9532a44a59cc6974b8c234.png" alt="6b018515d9532a44a59cc6974b8c234.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="72f97047ad13f09e7b8e5161c1b0dbd.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/149245iDB36F3EF64257EA1/image-size/medium?v=v2&amp;px=400" role="button" title="72f97047ad13f09e7b8e5161c1b0dbd.png" alt="72f97047ad13f09e7b8e5161c1b0dbd.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="6ac8d7e2ef9d93ae5a1db7124154884.jpg" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/149246iD184376B17E8E097/image-size/medium?v=v2&amp;px=400" role="button" title="6ac8d7e2ef9d93ae5a1db7124154884.jpg" alt="6ac8d7e2ef9d93ae5a1db7124154884.jpg" /></span></P><P>&nbsp;</P><P>Dear Sir,</P><P>When I use the VNA to measure the PN5180 antenna, but the result shows:</P><P>The NanoVNA shows:</P><P><EM>Return Loss: -5dB</EM><BR /><EM>Z =&nbsp; 133R&nbsp;@13.56MHz</EM></P><P><SPAN>Is the antenna matching result not good for PN5180? And how to solve it?</SPAN></P> Thu, 08 Jul 2021 08:40:46 GMT https://community.nxp.com/t5/Wireless-MCU/PN5180-Antenna-Matching/m-p/1304626#M11335 Thomas_jjzhou 2021-07-08T08:40:46Z https://community.nxp.com/t5/Wireless-MCU/PN5180-Antenna-Matching/m-p/1310762#M11397 <P>Hello Sir,</P> <P>I'm sorry for the delay on answering this.</P> <P>Please check our training videos about antenna design</P> <P><STRONG><A href="https://www.nxp.com/video/nfc-antenna-design-1-which-antenna-for-what-purpose:WHICH-ANTENNA-PURPOSE-VIDEO" target="_blank">https://www.nxp.com/video/nfc-antenna-design-1-which-antenna-for-what-purpose:WHICH-ANTENNA-PURPOSE-VIDEO</A></STRONG></P> <P>Also, you might find useful the document AN12810 guidelines for NanoVNA Antenna design</P> <P><A href="https://www.nxp.com/docs/en/application-note/AN12810.pdf" target="_blank">https://www.nxp.com/docs/en/application-note/AN12810.pdf&nbsp;</A></P> <P>This document will provide useful guidelines to follow for antenna design for PN5180</P> <P><A href="https://www.nxp.com/docs/en/application-note/AN11740.pdf" target="_blank">https://www.nxp.com/docs/en/application-note/AN11740.pdf</A></P> <P>Please feel free to share your findings to the community.</P> Tue, 20 Jul 2021 23:46:45 GMT https://community.nxp.com/t5/Wireless-MCU/PN5180-Antenna-Matching/m-p/1310762#M11397 Fabian_R 2021-07-20T23:46:45Z