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efeksk

SUPER J-POLE ANTENNA

 

Hello my friends.
I hope everything is okay.
I hope you are healthy.
I haven't been able to access the forum for a long time due to health reasons.

I'm currently stuck with a j-pole design.
Can we simulate this antenna according to the attached pictures?
What will be the technical values of 3 different versions such as pattern, gain, swr?

 

j-pole v1.pngj-pole v2.png

j-pole v3.png

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,,, welcome back to this forum my friend ... !!!!
,,, you still have to tell me the dimensions on the coil...!!!

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Hello again, old friend.
I hope I can be active all the time.
The diameter of the wire used in the antenna is 1.2mm
Coil inner diameter: 3mm
Coil with 22 turns

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,,, and for what frequencies do you want J Pole antenna to work ..? /

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Just now, Admin said:

,,, ve J Pole anteninin hangi frekanslarda çalışmasını istiyorsunuz ..? /

868 MHz my brother

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,, ,,but isn't the antenna a bit big ... ??

 

622ee76f9ddab_j-polev3.thumb.png.39bd5ef506349d9782b36ed142a489c3.png

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I know the dimensions.
The data in the cst simulation that I'm curious about :)

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Wow.
You did a great job.
does this test consist of 3 coils?
So how is the test result with a single coil?

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I need to be able to run this antenna at 868 mhz.
But it must be highly profitable.
6 dbi
8 dbi
12 dbi
How can I achieve these gains with 868 mhz?

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Understood.
I also installed cst studio.
I want to learn a little.

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10 minutes ago, Admin said:

screenshot_916.jpg

What did you misunderstand?

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,, it's a design mistake for me ... !!!

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Just now, Admin said:

,, bu benim için bir tasarım hatası... !!!

aaa. okay okay. I get it now.

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,,, not even the simple one is too good ... !!

screenshot_921.jpg

,,, where did you get the drawings ... ??

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swr value is quite high. There are two ways to reduce this. The first is to move the feed point up or down. The second is to shorten it from the top wire.

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,,, did you manage to make this antenna ... ??

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Yes. But I don't know the actual gain of the antenna. And I don't have any technical data.

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,,,show me  where did you get the dimensions from ...?
I think the coil is not good...!!!

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I will produce one for you. And I will share all the measurements with you

 

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