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Lutenna - The antenna made of Sugar
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<blockquote data-quote="casser" data-source="post: 596837" data-attributes="member: 264731"><p>I also think those material´s are very lossy, but is rare to get loss tangent values for each material, so the best way to confirm is to test the material.</p><p></p><p>There are tons of articles about sphere antennas, this one is about adding a second smaller sphere in the focal point of the biggest sphere:</p><p>_http://www.waset.org/pwaset/v37/v37-118.pdf</p><p></p><p></p><p>The Half-lens or Half-lens+conical is made for one sat only, maybe can receive different sat´s better than normal dish...but the multibeam capabilities is lost when the sphere is cutted in half.</p><p></p><p>Since i posted this antenna in a portuguese satellite forum, many people tried the antenna with different material´s, some homemade support´s for the LNB are very curious..<img src="https://www.satellites.co.uk/styles/default/xenforo/smilies/smile.png" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" />i´ll try to upload some photos of the antennas that they made.</p></blockquote><p></p>
[QUOTE="casser, post: 596837, member: 264731"] I also think those material´s are very lossy, but is rare to get loss tangent values for each material, so the best way to confirm is to test the material. There are tons of articles about sphere antennas, this one is about adding a second smaller sphere in the focal point of the biggest sphere: _http://www.waset.org/pwaset/v37/v37-118.pdf The Half-lens or Half-lens+conical is made for one sat only, maybe can receive different sat´s better than normal dish...but the multibeam capabilities is lost when the sphere is cutted in half. Since i posted this antenna in a portuguese satellite forum, many people tried the antenna with different material´s, some homemade support´s for the LNB are very curious..:)i´ll try to upload some photos of the antennas that they made. [/QUOTE]
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Lutenna - The antenna made of Sugar
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