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clanon
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Everything posted by clanon
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each CIRCULAR PATCH (director too) FLOAT on dielectric NO CONTACT... Energy is fed trough slots at 90 degrees from each IC Driver one for each circular patch Circular polarization , slot feed , direct IC drive...ACTIVE PHASED ARRAY (for satellite pointing)
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analysis
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Modified for COPPER TAPE over PES (styrofoam)
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each floor (cement...?) would steal at least 3db...if you are right on the BLIND SPOT (on top of the antenna) you'll get almost zero...giving the antenna some angle and using a reflector (small flat aluminum , foil could do)concentrating the energy on your receiver from the built in antenna (it seems to be a 2 dbi or less)
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best BOOSTER is a better antenna...(might require surgery...minor) if the stock is not detachable...
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Starting point this site by Graham Sharples 13 cm bifilar helix I'd never found a good feed for DEEP DISHES ( i have a 1,26 m , 0.31 m deep dish F/d 0.25 )
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what about supporting the actual set-up with a GIMBAL allowing the antenna and router (with slack in cable) to stay at 90 degrees to level (maybe adding some ballast in the base) under 5 dbi wouln't do it for 800 mts and obstacles (disc cone) not sure
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Here's TWO things you might wanna try , BEFORE changing antenna,...(my 2 cents) The same 8/9 dbi UP side DOWN (diagram might point better to ground) lower angle A HAT (aluminum disc) on top of the same antenna (pushing energy down to AP) lower angle (BUT if 800meters 8/9 dbi (with lots of obstacles i assume) is NOT enough closer to 15dbi should do it) New antenna and finding the right HEIGHT you see...when the mast swings your AP falls OUTSIDE the LOBE of reception UP or DOWN...but OUTSIDE...
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it seems like you gonna need a DUAL BAND omni (with high gain but wide angle of elevation or small angle pointing DOWN) What's the distance to AP...? (average)
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the router model ... to check the use of two antennas...(separated a feet or so could be interesting) pretty sure is the ELEVATION ANGLE going UP and DOWN
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TWO folded dipoles (300 ohms in ideal conditions) with one 75 ohms cable and sometimes split at the end on Two pigtails...and lots of SILICONE...I think they're HITTING the RIGHT frequency and getting around 15 or more db...dunno REFLECTOR SIZE is GOOD , tho
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https://toko.baliwae.com/product_info.php?products_id=3175
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is two Yagi Folded dipole adjusted to hit the high and low Frequencies...i tried one and it has SEVERAL resonance PEAKS that must fall in your frequencies of interest https://www.wifi-antennas.com/topic/2101-698-3800-mhz-yagi/?page=1 the adaptation inside the box is REALLY important... Gain should be close to 15 db at best
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Trying to get more gain on small and easy footprint size, with FA20 patches as reference.
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antenna should have X , Y size incremented (width and length) Frecuency of results divide by Wanted frecuency...that ratio is Increment of x y size
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The lack of REFLECTOR and WAVEGUIDE make it a quarter wave Yagi , Probe fed (never seen)
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0D option ...what is it ?
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my bad! it cant never be under 1:1
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It's wideband by several PEAKS of resonance...if your frecuency of interest doesn't FALL inside one of those you're out of luck... So it's NOT continuos WIDEBAND like other designs...
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Is THIS right...? (the values for swr...)?
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Copy (bad) of Ionnica over 20 dbi...?
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ALVARION WIMAX