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eco32
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This was the last deleted post. I have finished adding content. It was my last contrubution. EOT
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1296MHz disc Yagi-Uda is here
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1296MHz => https://web.archive.org/web/20180619173254/http://www.dj6ep.de/HB9SSH/23cm.pdf , https://sq9mts.blogspot.com/2024/05/antena-krazkowa-hb9ssh-dj6ep.html 2,3GHz => https://www.ok2kkw.com/zzz/hb9ssh/hb9ssh_anteny.htm
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Not eassy, but possible 165mm saw, => 160mm circle.
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Update 917 x 720 welded iron bars (Pacific Grid) 917mmx720mm and 150mm deep f/d = 0.38 900 x 600 split die-cast magnesium f/d = TBD 600 x 400 split die-cast magnesium f/d = 0.35 400 x 300 split die-cast magnesium f/d = 0.38
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917 x 720 welded iron bars (Pacific Grid) 917mmx720mm and 150mm deep f/d = 0.38 900 x 600 split die-cast magnesium f/d = TBD 600 x 400 split die-cast magnesium f/d = TBD 400 x 300 split die-cast magnesium f/d = TBD I happen to have all sizes, i will update additionally something from Czech republic, not in production, but still available: Sito MMDS 175 AL http://www.satelit-tv.sk/obchod/sito-mmd...4502.xhtml Sito MMDS 175 cm kvalitne Hlinikove sito zložené z dvoch kusovParabolicke duralové sito, výška 175 cm, zisk 34dB, cena aj zo zadnym držiakom F/D = 0.41 34dBm
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In Australia, they have a strong tradition of using high-gain antennas, with versions available that are rarely seen. For starters, a factory 1300Mhz grid (I made one similar) and a 3.6HGz, in addition to the 2.4GHz 5.6GHz available in Europe. 900x600 Grids: 1.3 18dBi 2.4 GHz 24dBi 3.5 GHz 27dBi 5.6 GHz 868MHz GHz Antenna some feeds were explained here : "Siple Dipole" (which is no longer a simple dipole)
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To know what to do ot not to do, It is not always possible to buy what you want. RND and learning
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bacfire VS dish 1296MHz similar diameters, after long optimalisation in Matlab (end usage of thos tool soooooon)
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may I ask, why 75 ohms, surely less copper in the transmission line and cheaper cost. Russian military antennas not knowing why, are all 75ohm?
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Biloop by ua9yed in HFSS tool, almost 11dBi from https://www.lan23.ru/forum/node/885/page11 Here calculated on HFSS-11, the sizes took the same as you, only rings of copper cross-section 2.5 mm and the distance to the reflector 12 mm! In principle, and the results of the calculation are the same.I'll try to mess with coaxial feeding ..see what happens:mda: It turns out not big distortions of symmetry.Actually so it should be at such power supply.
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I have no more excuses
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I've had CST installed for over a year, just haven't had time to switch. How to get started? Colleagues, if you can help me get started, it will be full of benefit for everyone's in the community.
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47cm