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Andrew77
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I meant only the first 93.7 mm after the sma
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Really I don't need, but I think balun can be some other thing like ferrite toroid on the feed cable after connector and 93.7 reduced to 60
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They are three dipole right? Gain is ok, but lenght could be less: first 93mm can be less!? Should not change gain
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Only 6.3dBi for a 300mm of antenna
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This one in picture
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@admin Do you have cst or stl file of the cilindrical metal collinear antenna ? Many thanks!
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Not perfect but seems working!
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Here is, for CST 2019 Happy new year from Andrea Double_BiFilar_Helix_Antenna_UHF_4_sheet_Brass.cst
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Hi, further improvements for the matching: check this
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Have you tried to get the GND closer to the antenna? VSWR gets better! In this case GND plate moved to the antenna by 6 mm
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Yes, It Works! Have a nice day!
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Hi Dear, Please could you send me the *.stp file? Because I'm using CST2019, Many thanks! Andrea
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Gain VS frequency? Thanks!
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I already posed a question about this antenna, I made some simulations, have you succeded to simulate it?
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mmm interesting, but seems lumped port, I don't understand well... Do you have this example in .cst format?