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clanon
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Everything posted by clanon
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using 3mm Polystyrene foam (1.2) , and a capacitive disc to neutralize the antenna being too INDUCTIVE... Not bad for a 180 by 240 cms...
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It's "extending" the 50 ohms over the feed line...it's on the gnd ring... ?
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5.8 ghz and 2.4...?
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It looks like 4 Folded Dipoles around...?
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These guys https://www.researchgate.net/publication/283553994_High_gain_245_GHz_22_patch_array_stacked_antenna " say " ...they got 19 dbis from a 2 by 2 array...WHAT GIVES...? HighGain2.45GHz2x2PatchArrayStacked.pdf
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BULLSHIT!
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yup , never see more than 15 or 16 dbis on 4 patchs on AIR and BOX ...Thiss is on a dielectric and flat , maybe i'm missing something...it's even PUBLISHED on IEEE...https://ieeexplore.ieee.org/document/7219647/
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19 ORIGINAL.cst
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19 ORIGINAL.cst
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my "GUESS"...: BUT MAYBE I GOT WRONG THE Z ADAPTATIONS
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it looks like BULLSHIT...to me...not getting more than 10 dbis right now
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Also known as BOW TIE antenna... yesterday i saw an array of high gain...i'll try to post it....(but it was for FR and 19ghz...)
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"A radome is a structural, weatherproof enclosure that protects a microwave antenna"
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http://www.lan23.ru/wifi/ANT24_1200/ant24_1200.html JOMY... what could be wrong...? REFLECTOR DISTANCE...FR4 thickness... using 1.5 mm for FR and 7mm to reflector...
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my mistake , i call "radome" to ANY dielectric enclosure ...
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i'm pretty sure that if i ADD a plastic RADOME to it....it would go to 2.4ghz (people forget that radome lowers frequency a lot!)
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Don't know what they say ...but if you replace a CHEAP PE coax (50ohms) with a GOOD PPolyurethane or teflon coax (75ohms)...the benefits i assume would surpass z missmatch VSWR (by accident) "In electrical engineering, an impedance mismatch occurs when the input impedance of an electrical load does not match the output impedance of the signal source, resulting in signal reflection or an inefficient power transfer"
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WELL...never forget that PLASTIC ENCLOSURES are important in lowering the Fr...must be that...
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Хочу такую прошу начерти другое 75 ом,у нас в деревне не валяется пенапластироль ",,, I want this please draw another 75 ohm, in our village there is no foam plastic" 75ohms cable on a 50ohms card would give 1.5 VSWR...NOT GOOD!
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notice 8 internal patchs at HIGHER frecuency than 8 external patchs...two paks of resonance...it seems.. PS: the SCREWS are very IMPORTANT! there
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DROP like could be nice...
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i dont' undestand this part ...; 9mm desde reflector to cara de cobre PCB 6 mm entre reflector y placa cobre no cara de cobre. must be 6mm to square...?
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