{"id":1837,"date":"2017-07-24T20:38:02","date_gmt":"2017-07-24T20:38:02","guid":{"rendered":"http:\/\/dh5ym.hopto.org\/wiki\/?p=1837"},"modified":"2017-07-24T20:41:24","modified_gmt":"2017-07-24T20:41:24","slug":"almost-a-antenna-feed-for-6cm","status":"publish","type":"post","link":"https:\/\/dh5ym.hopto.org\/wiki\/?p=1837","title":{"rendered":"Almost a antenna feed for 6cm …"},"content":{"rendered":"

Not all things work out… I was searching for some nice feed for a offset dish to be used for 6cm narrow band. In the internet i found a nice version from Russia.
\nIt was announced for the 5GHz WLAN band without dedicated specification of the exact frequency.
\nFor 40 Euro including shipment it was ordered and after only 2 weeks in transit (russian saying tells: For bad children Santa Claus sends the gifts by russian post… ;) ) and 1 week in customs i finally got my russian present.
\n

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5GHz horn from Russia<\/p><\/div>
\nMeasuring the input matching shows that its well in the middle of the lowest 5GHz WLAN band.
\n

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WLAN horn matching measurement<\/p><\/div>
\nFar away from 5760MHz. But ok, lets try. First i removed the N connector.
\n

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5GHz horn from Russia<\/p><\/div>
\nThe connector with the radiator seems to be a robust construction. I tried to shorten it step by step. Unfortunately it happened what could be expected. The feed can be de-tuned to about 5.5GHz but above that the matching vanishes. Probably the distance to the backside of the horn is too big. So this one was a fail. Fortunately i can still use it for WLAN if i make the radiator a bit longer again. If you want to use the lowest of the 5GHz bands it is really a nice and very solid construction.<\/p>\n","protected":false},"excerpt":{"rendered":"

Not all things work out… I was searching for some nice feed for a offset dish to be used for 6cm narrow band. In the internet i found a nice version from Russia. It was announced for the 5GHz WLAN … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3,27],"tags":[],"class_list":["post-1837","post","type-post","status-publish","format-standard","hentry","category-amateur-radio","category-antenna","category-microwave"],"_links":{"self":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1837"}],"version-history":[{"count":4,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1837\/revisions"}],"predecessor-version":[{"id":1841,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1837\/revisions\/1841"}],"wp:attachment":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}