BatWing antenna 2.4 ghz

[Admin 2545]

,,,a version of the Batwing antenna proposed by the user 'com666'...

,,,and the alternative proposed by me...

 

[alhaba.production 7]

For 900 mhz? The big size.

[Admin 2545]

,,,yes, but this solution is not the best...!!!

,,,only this remains the best...!!1

 

 

[isa 0]

hiii,,,, can i use 2mm thick aluminum sheet as reflector instead of 1.5,,,, as in my area i got only 2 options of either 1mm or 2mm,,,,,,

[Admin 2545]

,,,yes...!!!

[isa 0]

hii,,,,

can i use copper sheet instead of aluminium, or does the dimensions changes when copper is used???

[Admin 2545]

,,,it doesn't matter the material...but how you weld aluminum...???

[isa 0]

14 minutes ago, Admin said:

,,,it doesn't matter the material...but how you weld aluminum...???

Maybe ill solder,,,

doesn't changing the material will change the resistivity and hence , the impedance???

Like Copper is 2x of Aluminium,

Can i use Galvanised Iron Sheet too, which has like 4 to 5 times more resistivity in compared to Aluminium????

[Admin 2545]

,,,it doesn't matter the material...!!!!

[Ivan 0]

On 6/4/2022 at 8:23 PM, Admin said:

,,,the best Batwing....

 

Will it work for 5.8 GHz?
thanks

[Admin 2545]

,,,hi buddy...!!

,,, yes it is possible, but it must be recalculated...!!!

,,,but tell me too, how you get these dimensions (framed in red)...???

[Ivan 0]

22 hours ago, Admin said:

,,,but tell me too, how you get these dimensions (framed in red)...???

 

Hi,
It should differ its clear, I'll recalculate it. I'm worrying about the gain at 5.8Ghz and maybe someone has a template for simulation?
 
thanks for the reply

[Dr. Pepper 58]

On page 12 you will find a calculated batwing for 5ghz, i give there also the dimensions. It also works good at 5.8ghz

 

 

 

[Biruza 3]

On 21.04.2022 at 6:18 PM, Dr. Pepper said:

Update about the 3D Batwing. I had to optimize the reflector also. Now the antenna gives also proper gain in the 5.2 GHz range as in the 2.4 GHz range. Attached the new dimensions and Results. Please keep in mind, this only works when 3d printed. A bare metal antenna will have other dimensions!

Dimensions:

  Reveal hidden contents

Gain:

  Reveal hidden contents

 

SWR + Impedance:

  Reveal hidden contents

 

Dual Band Batwing.stl

The idea of printing an antenna frame out of plastic can be taken to its logical end. She's very flexible! All antennas are very sensitive to size. It is surprising when the authors give sizes with an accuracy of 0.01. This involves tuning with an SWR meter. In life, it can be done with an accuracy of +/- 0.5 mm.
And if you completely fill the space under the antenna patch with plastic?
  The filling can be adjusted, 10-20%, the antenna will be light, but tough. The size will be smaller. The foil is easy to stick on the work surface and cut off the excess. Now the computer is optimizing the batwing from Dr. Pepper.
Directors can be placed upstairs

[askot 0]

Hello!

When using these two antennas, can I implement MIMO mode? What distance should be between antennas?

[Admin 2545]

,,,see that in this topic there is something like that...!!!

[Dr. Pepper 58]

On 7.5.2023 at 1:42 PM, Biruza said:

The idea of printing an antenna frame out of plastic can be taken to its logical end. She's very flexible! All antennas are very sensitive to size. It is surprising when the authors give sizes with an accuracy of 0.01. This involves tuning with an SWR meter. In life, it can be done with an accuracy of +/- 0.5 mm.
And if you completely fill the space under the antenna patch with plastic?
  The filling can be adjusted, 10-20%, the antenna will be light, but tough. The size will be smaller. The foil is easy to stick on the work surface and cut off the excess. Now the computer is optimizing the batwing from Dr. Pepper.
Directors can be placed upstairs

I also try to add more Plastic to the antenna for more stability but the performance was worse. There should be only minimal Material in contact to the antenna. I can only imagine a foam material or something similar, perhaps cutting foam and laminating it with copper tape.

[Admin 2545]

Dr. Pepper,maybe you can look over this topic...!!!

 

[jonirak 0]

I want to build one antenna for 1800MHz. I will use power tools to cut 0.5mm steel. I have access to 3d printer and a small cnc but not laser cut so I want a simple design to cut all the parts and weld them together.

 

Is this with the wings reflector the best?

This one with the simple reflector and the m3 screws looks good on 1800 and simple to make.

Also this with the bucket reflector looks good and not so difficult to build. Should I build the bucket with the exact dimensions or it doesn’t matter?

 

Which one would you suggest? I cannot open cst files. Can you share dxf for the 3 antennas above?

Edited November 24, 2023 by jonirak

[Admin 2545]

,,,,does this suit you...???

batwing.dxf

 

batwing rond.dxf

[jonirak 0]

Thank. I think they are different from the ones I mentioned but I might try them.

The other ones I asked have dimensions so I could redesign them and build one of them.

[jonirak 0]

I will design the covid-20 version. What is this radius?

[Admin 2545]

,,,r=8mm,you want round batwing for the frequency of 1800 MHz...??

 

 

[jonirak 0]

Which do you think is the best for 1800MHz? I'm not expert but I asked for that because I saw a low VSWR on 1800.

[Admin 2545]

Rond Batwing

I think these sizes are the most suitable...!!!