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Admin
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Everything posted by Admin
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PET is better
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PMMA Organic glass (plexiglass), or polymethyl methacrylate (PMMA)...??? The dielectric constant of PMMA is around 4.9....very bad
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,,, good, show me such a material in practice ... !!! For the helix antennas does not really matter dielectric material, but I think the best is Teflon , Polystyrene and the Air
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The best material for the construction of the antennas is the sheet, thickness of 0.15-0.5mm This is from the sheet of aluminum tin cans boxes
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A new form of biquad antenna
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Optimization Techniques in CST Studio Suite,,, Optimize in CST.doc
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Something like that!
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The dual polarized microstrip antenna was design to generate signals with +45 and -45 polarized but with a loss in directivity gain of about 3dBi This antenna is more interesting with symmetrical excitation at a resonant frequency
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DELTA antenna, another kind of miniature antenna on PCB for 5.8GHz Anyway it's sub-miniature, about 30x30mm And here are the CSTfile thickness FR4 = 1mm DELTA 5,8GHz.cst
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DELTA antenna, another kind of miniature antenna on PCB for 5.8GHz
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This is a 1.2GHz antenna version with pseudo-elliptical polarization
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,,,a simple sloted patch antenna for 5,8MHz dimensions = 4,5x45x45mm constructive details on feed point,use this type of connector
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I think this type of antenna is better Double plated PCB
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I am going to try to do a simulation, it might be that the ellipse has other dimensions for this antenna What thickness of PCB did you choose?
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for 1.3GHz it is recommended to use elliptical cut
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"And these are the latest results
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For this, I have to resume the simulation, this project is old for a few years
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You could say it's a new form of the antenna gain in a reasonable direction ...
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then multiplies the dimensions of the image with k = 1,0345 for the frequency of 5,8ghz
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But biquad2.igs file is for 1.5mm FR4 thickness,,,,!!!!!
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What frequency do you want?
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Ant_kid, are you interested in antennas for drones?
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... yes. can adjust the impedance or something like that,,,,
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the uplink and dowlink it should be roughly the same...
