N78 Antenna

[papagayor 3]

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

[Admin 2628]

,,welcome,,,!!!

,,,so, for which frequency do I want the antenna panel..???

,,,and MiMo to be...???

,,,your antenna from the pdf file is not working well...!!!

[Admin 2628]

,,,maybe you want something like this...

[Admin 2628]

,,,papagayor, let's see what this can do...

,, with two ports it is not very convenient..

[clanon 268]

3.5 ghz (from 3.4 to 3.6 ghz bandwidth) mimo (more than 20db isolation between ports) at least 12-15 dbi gain...imho (gonna have to put the modem with the antenna close by...short cables...) Opening and soldering NEW cables (low losses) would be better...

Edited September 14, 2024 by clanon

[Admin 2628]

,,,maybe this would be a choice...

[papagayor 3]

Thank you very much for your time and your suggestion. Thinking for something "compact size" for feeding a satellite disk as reflector. Also I'm looking at the following post and thinking about making something similar as the attached file. Could you .....please..... check it??????

 

KATHREIN-PLAN.pdf

[clanon 268]

11 hours ago, papagayor said:

Thank you very much for your time and your suggestion. Thinking for something "compact size" for feeding a satellite disk as reflector. Also I'm looking at the following post and thinking about making something similar as the attached file. Could you .....please..... check it??????

 

 

https://www.wifi-antennas.com/topic/2548-catherine-antenna/

[papagayor 3]

Also, looking at deepseek for a proposed antanne at central frequency 3.52 GHz, it gave me the following results depended on a draw that I send. I attach them and if someone can simulate it should be fine. Also suggested to put polyurethane foam between over substrate at 20mm thickness.

antenna.nec

ANT-FINAL-1

Edited March 13 by papagayor

[Admin 2628]

It's interesting to see how you worked with deepseek...????

[papagayor 3]

Just asking and giving dimensions and describe about construction

 

[papagayor 3]

It's difficult for me to use CST or other simulator software so I look for alternatives to make my antenna similar to kathrein and other approaches that have seen on internet and on this forum

 

[papagayor 3]

5G-3.5

[papagayor 3]

Tomorrow I'll go on soldering the elements, do you know a trip or a software (Linux?) to find how good this construction works? Any help is VERY WELCOME!!!

[papagayor 3]

New question for 3.52Ghz antenna at DeepSeek gave me differential suggestions. So I made a prototype but I cannot calculate, if anybody can do this. I attach a simple drawing not in real dimension just for understanding the all construction.

CrossDipole.pdf

[Admin 2628]

This antenna is not  good enough...

 

3.52ghz.cst

[papagayor 3]

Neither by reducing dipoles space at 10mm? Is there a way to modify it a bit so that make an antenna similar to Kathrein, with 4 dipoles supported from 4 tubes on a reflector? Please???

 

Edited March 18 by papagayor

[Admin 2628]

Do you mean 1 mm, not 10 mm?

[papagayor 3]

No I mean 10mm because that was the suggestion from DeepSeek

 

[papagayor 3]

Very confused answers anyway from both ChatGPT and DeepSeek

[papagayor 3]

Have a look

DeepSeek.pdf

[Admin 2628]

The Best Wideband Magnetoelectric Dipole Antennas With Dual Polarization and Circular Polarization...

 

 

07091876.pdf

[papagayor 3]

Thanks, I've seen this construction, looking for a way to reduce frequency to 3300-3800MHz. Ca it be modified? I want to attach it on a 60cm parabolic disk.

[papagayor 3]

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.

[papagayor 3]

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