{"id":10718,"date":"2022-04-21T22:05:16","date_gmt":"2022-04-21T20:05:16","guid":{"rendered":"https:\/\/nolle.engineering\/?page_id=10718"},"modified":"2024-02-10T10:42:29","modified_gmt":"2024-02-10T09:42:29","slug":"3d-printed-l-band-antenna","status":"publish","type":"page","link":"https:\/\/nolle.engineering\/en\/3d-printed-l-band-antenna\/","title":{"rendered":"3D printed L-band antenna"},"content":{"rendered":"<p>Objective: <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Design &amp; construction of a high performance L-band reception antenna (e.g. for INMARSAT monitoring)<\/li><li>Flexible design to allow for multiple mounting options<\/li><\/ul>\n\n\n\n<p>Design Options<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td>ID<\/td><td>Type<\/td><td>Design features<\/td><\/tr><tr><td>A.1<\/td><td>LHCP Helix for offset dish<\/td><td>Mounting off center to get enough clearance towards dish arm<\/td><\/tr><tr><td>A.2<\/td><td>LHCP Helix for prime focus dish<\/td><td>Mounting centric<\/td><\/tr><tr><td>B.1<\/td><td>RHCP Helix for direct reception<\/td><td>Tripod mounted (or other), right hand polarization for direct reception<\/td><\/tr><tr><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"L-band antenne design features\" width=\"1000\" height=\"563\" src=\"https:\/\/www.youtube.com\/embed\/E1TH9hcTCys?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Option A.1<\/p>\n\n\n\n<p>Offset dish geometry: red lines show the nominal ray tracing from satellite into the LNB phase center.<\/p>\n\n\n\n<p>An L-band helix including its reflector are much bigger then the standard LNBs and would thus need to be moved slightly above the nominal LNB position. This would result in the green ray tracing which would slightly delude the focus.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"1001\" height=\"700\" src=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image.png\" alt=\"\" class=\"wp-image-10719\" srcset=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image.png 1001w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-700x490.png 700w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-300x210.png 300w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-768x537.png 768w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-18x12.png 18w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-429x300.png 429w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-400x280.png 400w\" sizes=\"auto, (max-width: 1001px) 100vw, 1001px\" \/><figcaption><br>Helix phase center approximate sits at the lower third of the helix. Fixing the helix at the proposed positiong would result in the helix sitting too far forward. It needs to be checked if this degrades the performance no longer justifying the simplicity of such a setup. The picture below just includes an LNB for comparision. In a real setup no LNB would be present of course.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"948\" height=\"655\" src=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1.png\" alt=\"\" class=\"wp-image-10722\" srcset=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1.png 948w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1-700x484.png 700w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1-300x207.png 300w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1-768x531.png 768w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1-18x12.png 18w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1-434x300.png 434w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-1-400x276.png 400w\" sizes=\"auto, (max-width: 948px) 100vw, 948px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"674\" height=\"607\" src=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-2.png\" alt=\"\" class=\"wp-image-10723\" srcset=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-2.png 674w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-2-400x360.png 400w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-2-300x270.png 300w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-2-13x12.png 13w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-2-333x300.png 333w\" sizes=\"auto, (max-width: 674px) 100vw, 674px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Size comparison with IceConeFeed<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"861\" height=\"683\" src=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3.png\" alt=\"\" class=\"wp-image-10727\" srcset=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3.png 861w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3-700x555.png 700w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3-300x238.png 300w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3-768x609.png 768w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3-15x12.png 15w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3-378x300.png 378w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/04\/image-3-400x317.png 400w\" sizes=\"auto, (max-width: 861px) 100vw, 861px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Objective: Design &amp; construction of a high performance L-band reception antenna (e.g. for INMARSAT monitoring) Flexible design to allow for multiple mounting options Design Options ID Type Design features A.1 LHCP Helix for offset dish Mounting off center to get enough clearance towards dish arm A.2 LHCP Helix for prime focus dish Mounting centric B.1&#8230; <\/p>\n<div class=\"link-more\"><a href=\"https:\/\/nolle.engineering\/en\/3d-printed-l-band-antenna\/\">Read More<\/a><\/div>","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10718","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>3D printed L-band antenna - nolle.engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nolle.engineering\/en\/3d-printed-l-band-antenna\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3D printed L-band antenna - nolle.engineering\" \/>\n<meta property=\"og:description\" content=\"Objective: Design &amp; construction of a high performance L-band reception antenna (e.g. for INMARSAT monitoring) Flexible design to allow for multiple mounting options Design Options ID Type Design features A.1 LHCP Helix for offset dish Mounting off center to get enough clearance towards dish arm A.2 LHCP Helix for prime focus dish Mounting centric B.1... 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