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clanon
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Everything posted by clanon
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Radiation efficiency seems fine... vswr must be the problem...
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getting there...RE-modeled... i'm gonna work on the coplanar waveguided thingy...now...
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It SHOULD have one BIG LOBE...in the CENTER (16dbi) and some smaller ones around...IMHO “Having carefully examined the cable entry point in the photos of the“ original ”, I came to the conclusion that there is not a“ bare ”microstrip, but something like a“ coplanar waveguide. ”Therefore, I provided for such an“ earthen ”polygon at the input
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try with teflon ...2.1 dielectric constant...Original material ...close to 0.7...(0.762, 0.787mm) PD: I was gettin LOTS of APs...but too litle signal... less than -62dbm...and a bunch with more than - "Foil materials from NELTEC (France) NELTEC is the new name of the company METCLAD. The materials are intended to be used as substrates in microwave devices. The thickness of the dielectric: 0.127, 0.254, 0.508, 0.762, 0.787, 1.270, 1.524, 1.575, 3.175 mm The dielectric constant (at a frequency of 10 GHz): 2.17 ... 3.48 Copper layer thickness: 5, 9, 12, 18, 35, 70, 105 microns Sheet size: 305x457, 406x457, 457x610 mm "
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some doubt about INTERSECTIONS...how its supposed to go...
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and then ...discrete port...or what?
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54 by 46 mm each Patch...i think...
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here's the model...not exact just taken from that picture... can't make it dance though... Maybe my settings are wrong for the solver... i tried waveguide and discrete port...TO NO AVAIL raytron 16dbi.cst
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TRYING my best... we'll see...
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Same principle ...
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I did built it...It's amazing...APs keep poping up...and isn't critical to point it...My Best antenna so far...(Adapted an minipci wlan card to it) it digs up more Routers than my wn722n...
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CAN'T right now ...BUILDING a FA20...it will take some days...wanna get it just right
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https://www.youtube.com/watch?v=Y2R-12lKMRk Dimensions and GAIN would be great...
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inside bigger than patchs and close to 4mm or so the screws touch it on the current centers of the patch
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ABS should be like 2.8 of dielectric constant and 1.5 mm width ...try to keep 5mm to aluminum reflector inside , but it's tricky...not a lot of space some wifi cards don't like it so it must be high VSWR...channels from 1 to 11 all show up...poor signal though...
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OK , "dude" ...already built it on a notebook ABS cover...with aluminum foil...CST simulation would be great to fine tunning it... PD: I'm NOT getting 16dbi and a lot of VSWR
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https://vswr1.wordpress.com/tag/fa20-array-antenna/
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3dbi more with Directors aparently...