<div dir="ltr"><div dir="auto">I think you may be talking about front end modules. These are hard to engineer and to manufacture, typically requiring a semiconductor company teamed with specialists to do well.<div dir="auto"><br></div><div dir="auto"><a href="https://investors.broadcom.com/news-releases/news-release-details/broadcom-introduces-fifem-worlds-first-wi-fi-rf-fem-filter" target="_blank">https://investors.broadcom.com/news-releases/news-release-details/broadcom-introduces-fifem-worlds-first-wi-fi-rf-fem-filter</a></div><div dir="auto"><br></div><div dir="auto">Bob<br><div dir="auto"><br></div><div dir="auto"><br></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 11, 2024, 9:42 AM Dave Taht via Make-wifi-fast <<a href="mailto:make-wifi-fast@lists.bufferbloat.net" target="_blank">make-wifi-fast@lists.bufferbloat.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>It is really good to be completely over my head for a change, to some extent. From:</div><div><br></div><div><a href="https://forum.openwrt.org/t/tuning-beamforming-and-antenna-design/203720" rel="noreferrer" target="_blank">https://forum.openwrt.org/t/tuning-beamforming-and-antenna-design/203720</a><br></div><div><br></div><div><p style="margin-top:0px;font-family:Arial,sans-serif;font-size:16px">It is very rare these days that I get permission to talk about what I'm doing, but today I did! Somos Internet has been designing and building their own MT79 based internet router and bridge for the past few months. They engaged me to take a look at the reference board, and we were really pleased to see how well all of OpenWrt, not just the make-wifi-fast fq_codel bits, was working nowadays.</p><p style="font-family:Arial,sans-serif;font-size:16px">That was last month. This month, they got back the new boards with a new antenna layout, and the 5ghz performance at range is <em>terrible</em>. I confess that I no longer have even the slightest grip on how to go about debugging and improving antenna performance - are there beamforming variables worth sweeping in the mt76 driver? A piece of test gear we could use to see what is going wrong? A design tool for antennas? A debugging strategy for antenna placement?</p></div><div><br></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><a href="https://www.linkedin.com/feed/update/urn:li:activity:7203400057172180992/" rel="noreferrer" target="_blank">https://www.linkedin.com/feed/update/urn:li:activity:7203400057172180992/</a></div><div>Donations Drive.</div><div>Dave Täht CSO, LibreQos<br></div></div></div></div>
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