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eco32
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30 ExcellentAbout eco32
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This shape was much closer to Metal form for muffins, but not able in matlab sa Antenna Array. Matlab has big limitations, I wrote earlier that this is a very approximate model. I don't have the ability to do it more accurately.
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household stores is my favorit design mathod. Quick simulation with a very approximate model 27...30dBi. summing/phasing the signal is difficult in this band.
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How it works: I will try 1296Mhz and 432.2MHz
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What is the best technique for cutting out the discs? I will the HSS bimetal hole saw, holed in timber frame eng_pl_DEDRA-08WZ01-8PCS-BIMETAL-HOLE-SAW-SET-9546_1[1].webp
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A simple dipole is no longer a simple dipole, what we have here is a dipole feed with a stumb balun. Alternative to the "splited coaxial balun (with a gap)" (may it be added to other topic, source: facebook)
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Corner dipole calculator https://3g-aerial.biz/en/online-calculations/antenna-calculations/corner-reflector-antenna-online-calculator I got 10.2 dBi in Matlab
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A very old design from the time when there was no access to VNA or simulation programs. I'm not sure if this design makes sense, but it looks cruel (purpose TV broadcast)
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Actually ..... it is a biquad, very modified and more wideband.
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I did mistake, it is stub balun not a stubm balun
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This is an interesting and surprising design - Tuning directores positions process looks terrible, so much elements and only 14dBi. @Admin, Your version of the biquaod was better. Now we know that this is a dead end road and that it doesn't work.
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Thats stubm balun, it may be directed downward or upward, I have no idea what the difference in operation is. Only klow that is to phase shift. (My version in previous page was tunable)
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How is it made? i know coaxial COCO only : (reasembling 1800MHz antenna to 1296MHz
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1296MHz, previous tests have shown that the antenna also works on the higher bands. I will take two on the VNA and do an S12 between them, then we will know what it looks like. 6xbiqod project has name "MATHYLDE"
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Balun has also possibilites be a filter, I wants to do it this way. (it is possible that in the middle of the gap there should be a short circuit to ground on one side)
- 3 replies
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- notch filter
- Notch
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(and 1 more)
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a)New aproach, converting biquad to biloop, not tested yet quick and careless soldering b)Four biqads for array, eventually there will be six (I have 1:6 powe combiner, thats why six)