papagayor

I think it is better 3300-3800-OPT.cst

Please, I need to make an antenna dish feeder (ISP antenna over 1km away), for TCL HH500V router, which supports only N78 antennas (Vodafone Greece 3.4-3.8 GHz), on double TS9 ports. So, looking online tried to calculate a dual polarized patch panel construction, and must know if the attached diagram is good for my construction. The dimensions are on the attached .pdf file. I don't have and I don't know how to simulate this project in a simulator. Could anyone simulate, correct it or suggest something else for this configuration? Thank you. YG: I learned a lot from these posts, thank you all for posting them online. PatcPanel.pdf

Modified the antenna but I'm getting errors, by your free time have a look and correct it please 3300-3800-1 MHz BESTER.cst

You mean to attach a yagi-disk as director into a cantenna but using probes for signal as in cantenna? Or just put the whole construction in cantenna box for better performance? Cannot understand this plan.

I'm not sure about tubes height, I'll try to lower tubes at a distance of 1/4λ as this is the proposed distance I have seen online samples

Finished, how does it looks? Need more information?

You'll make me go on buying a new laptop as these calculations are very heavy. I own a Lenovo L490 with 8365U, running Debian and Virtualbox running Win10 which then run CST!!!

Have seen, trying but all these numbers look UFO to me

Trying to learn

The file you send me before is not correct and need to be modified in red line points as follow: 1. At these points the tubes are soldered on Reflector. 2. Tubes have the same length with the other 2 opposite tubes. 3. Under these 2 tubes, 2 SMA or N-type ports will be soldered. So I send you back the .cst file, I changed the dipoles size, but cannot modify tubes length and holes so that tubes electrically connected on reflector. If you have some time modify it and maybe new drawing be better, or mod it for 3.5GHz, it's very easy to be constructed. 3.52-1ghz.cst

Good morning, forgot to ask something, what if tube is a bit different like 6 or 8mm instead of 7, because 7 is a difficult dia and cannot find it easily

PERFECT, I'm going on construction

Some explains please sir, all elements tube and disks can be copper made, and should be touch each other (electrically connected)? Also does the thickness of disks matter, thinking about using 0,5mm copper???

???

THANK YOU VERY MUCH!!!!!! Now please can I add a second port in 45 degrees phase to existing one, or need mods?

Also I made a dual biquad, based on online calculations, and even I cannot test it for performance, my speedtests increased very much, i was taking -test in the morning when no much clients in ISP antenna- 30-50 Mbps and now it go up to 60-80 and some times over 150. I can't understand too much about measures, but looking in router results I took the attached measures, the SINR is not always the same it goes up-down to 1-10/ DBQuad.pdf

Or like this one

Thank you very much sir, but please can't my drawings be modified to work in this area? Because they're easy to be made for my skills. Also a dual polarized batwing with two ports would interesting.

Then I have no luck, only by continue seeking online for some plans

Calculations are not my best, so asking ChatGPT and DeepSeek for help by giving some dimensions and ask them to calculate frequency, or opposite, until I find a simple but good solution

Without simulating the antenna is difficult for me, because as I've seen by seeking online, when an element size change the whole antenna elements must be change, because not only elements size is critical but also distance and position on reflector is critical too. I liked the Kathrein antennas procedure as they are very simple, and trying to make something similar by 4 copper sheet dipoles soldered on copper tubes and then solder tubes on reflector. Also I saw somewhere a Kathrein dipole antenna, that was like an upside down Π, that was a simple idea but cannot make the calculations. All I need is to make and mount a 3300-3800MHz antenna on a parabolic dish

How about this construction?

About this construction, can it be modified for dual port? And if yes where should they be attached?

This is a good design but a bit difficult to make the wires be stable under patch. https://www.researchgate.net/figure/Measured-and-simulated-S-parameters-of-the-fabricated-antenna-element_fig3_330818544

My thought is to make it from 4 copper sheets 0.5mm or aluminium 1.5mm, 4 copper tubes 6mm or aluminium 10mm, and copper 0.5mm or aluminium 1.5mm reflector, then for copper I'll solder them all, and if aluminium thinking of using steel or aluminium screws to mount elements. But I don't know to use CST or HFSS software to simulate and correct dimensions, distances and more.