SUPER J-POLE ANTENNA

[efeksk 22]

 

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?

 

[Admin 2546]

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

[efeksk 22]

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

[Admin 2546]

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

[efeksk 22]

Just now, Admin said:

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

868 MHz my brother

[Admin 2546]

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

 

[efeksk 22]

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

[Admin 2546]

,,, these are the test results...!!!

[efeksk 22]

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

[efeksk 22]

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?

[Admin 2546]

[efeksk 22]

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

[efeksk 22]

10 minutes ago, Admin said:

What did you misunderstand?

[Admin 2546]

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

[efeksk 22]

Just now, Admin said:

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

aaa. okay okay. I get it now.

[Admin 2546]

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

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

[efeksk 22]

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.

[efeksk 22]

[Admin 2546]

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

[efeksk 22]

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

[Admin 2546]

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

[efeksk 22]

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

 

[Admin 2546]

You should see that too...

 

[Admin 2546]

,,, for the 2m band...!!!