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clanon
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Everything posted by clanon
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You use WHAT WORKS (that'll be DISCRETE PORT 1st and WAVE Port at the end) Same for Solver mesh settings
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Face select inner+pet+shield+outer edge , then assign wave port (ALL of them should be leveled) puting a PORT on the END of an ANTENNA is a NO-NO
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Still workin on it (good antennas BAD FEED NETWORKS !) I'll upload it if it works give me time After the simulation is OK on Port impedance Z (should be 50 ohms ) Electronics = Cables= Antennas (50Ohms=50Ohms=50ohms)
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Those TWO collineal NEED an adapter to SHOW 100 Ohms in the middle (50ohms on coax) Two identical antennas of 50ohms would give 25ohms in the middle not right I ran one alone and is promising...
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Those TWO collineal (2,4ghz) NEED an adapter to SHOW 100 Ohms in the middle (50ohms on coax) Two identical antennas of 50ohms would give 25ohms in the middle not right
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First of ALL BOTH Your Coax cable HAVE NO SHIELD... Adding a SHIELD present a NEW problem (they would be DANGLING in the AIR -No Connected to ANYTHING)
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Use THIS is more PRECISE (PS: also try rotating the tube gradually to get the POLARIZATION in the SWEET SPOT) Good work!
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Yeah , that figures...it should have some impact on Simulation (as Ferrite FeO2)
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BI CONE , central feed wide band (base is dielectric)
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BI CONE , central feed wide band (base is dielectric)
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WAVY response Wide band..
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THIS I SEE might be YOUR main problem...(Cut again to eliminate the bridging between CONES , it should be open and the disc is plastic)
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Jomy do you have an stl file i'm interested on check it...?
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Does it have two connectors...? Reactivity is high and Z should stay closer to 50 ohms... to be ideal...
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Trevor approach seems the Right on the money! BUT it's using an OFFSET DISH...No SHADOW from feed and different focus F/D ratio spillage etc,
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is goin to be a BIG secondary reflector and Biquads have an almost spherical lobe IIRC (better suited for a DISH )
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Secondary Reflector (small one with similar angle and shape as MAIN reflector) is of MOST IMPORTANCE and antenna should be BACKFIRING (looking back) otherwise you're JUST shielding it from back signals...
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The original "claimed" 11 dbi gain...SMC patch
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http://wifipanelantenna.blogspot.com/2008/12/panel-wifi-antenna.html 1800.cst
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Radome seems THICK 2mm PC (Polycarbonate) Those big BOLTS must have some effect too...
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Phase and Impedance matching( Radiator Z + Feed point z) Yes ALL ANTENNAS are the same ; any conductive material) Dielectric must be CONSIDERED (different ε (epsilon), and Tangent Loss) A HALF WAVE radiator could be held at center point cause there is a Low impedance (high Current) point no EFFECT on general characteristics...(the WAVE is NOT MOVING at THAT specific POINT)
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we SHOULD make a DATABASE and keep it in the cloud with our CSTs and 3D or DXF files , for the interested in trying them...
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not sure manual CALL'em ANT1 ANT2 ANT3 ANT4
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