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Admin
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Everything posted by Admin
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These are the dimensions, impedance adaptation remains to be done...
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Another good collinear antenna with a 9 dBi directivity gain...
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,,,and a video....
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I think it should look like this, but it need to make a 250 Ohm adaptation...
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okay buddy, I'm glad that you work with the CST...!!! Please, post your results, here in the forum...!!!
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,,,no, if you want for the 5.2 GHz frequency ,tell me...?!
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,,this it"s for 3DHS/EF 95" Electric Only Extra 330-E....https://www.rcgroups.com/forums/showthread.php?2963732-3DHS-EF-95-Electric-Only-Extra-330-E
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,,,,from Garry ...
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Garry, what do you think of that...???
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,,,not yet, but the end is near...!!!!
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,,,from center to center coils... 0,025*lambda = tape
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...the minimum distance between coils = 0,62*lambda ( wavelength ) ....the bestt distance between coils = 0,8-0,9*lambda ( wavelength )
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Hi buddy, I like your achievement, but you must to know that the gain of a cp cross biquad is negative, that is it is less than a single dipole because of the power split to feed two antenna elements from the same source,by cross-polarization, you lose about 6 dBi. Okay , I tried this solution without the results being spoken on the internet ,,,try this option too...
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With this biquad form, you can get a bandwidth increase... Dimensions are given on the axis of symmetry of the Cu Wire
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From here,,,http://give-all.biz/articles/samdel/samodelnaya-antenna-analog-obluchatelya-bester These are my drawings...!!!!
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Yes, but not with this patch geometry...!!!
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You can try this....https://www.sonnetsoftware.com/products/lite/download.html
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Rob, please, if you can, post YouTube video by Andrew Mc Neil and the sizes of your antenna!!
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Okay, that's better... "you do not watch all the forum...!!
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ok, from where did you get this helix geometry...??
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,,,hi buddy...!!! "impressive, did you make these helix antennas ...?
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,,,hy dude..!!! I do not know, simulation is long time ago ...!!!
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yes
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Ok, it does not matter the type of coaxial cable, but the inside diameter of the pipe must can be pressed on the coaxial cable
