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aurel

BatWing antenna 2.4 ghz

258 posts in this topic
3 minutes ago, Admin said:

,,, this do you like ,,, ?? parabolic offset 800mm

[image removed]

Yes, thank you very much! Really appreciate it!

I see the simulation data is for 2150 MHz. I'd be grateful if you could do it for 2442 MHz. Well, I don't think it will change dramatically because the batwing is wide band.

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,,, yes, the gain is about the same on the whole frequency band...!!!

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Looks very competitive to the Bester antenna.

I think I could put one to the test. But I've found that this drawing differs from content of the DXF files you've published later. So which one is correct?

screenshot_1750.jpg

The DXF as my QCAD sees:

 

batwing-discrepancy.png

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,,, yes, that's right. my drawing is the good one...!!!!

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5 hours ago, Admin said:

,,, yes, that's right. my drawing is the good one...!!!!

I still do not understand which is correct?

screenshot_1750.jpg

or

 

1my batwing.png

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,, my drawing is correct...!!!

 I do not know why the transposition in cad programs does not respect the reality...??/!!!

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3 minutes ago, Admin said:

,, my drawing is correct...!!!

 I do not know why the transposition in cad programs does not respect the reality...??/!!!

This is exactly how (like the bottom picture) opens in Compass 3D

Screenshot_6.png

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,,, the antenna profile must be made on Kompass program..!!!

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2 minutes ago, Admin said:

,,, the antenna profile must be made on Kompass program..!!!

so in it and open your file

Screenshot_8.png

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,,, yes, I translated * dxf file from CST to Kompass and it doesn't seem to match..!!

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2 minutes ago, Admin said:

,,, yes, I translated * dxf file from CST to Kompass and it doesn't seem to match..!!

can you share the file from CST?

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On 7/17/2020 at 3:47 PM, Admin said:

,,, this is the cst* file , for Batwing in the bucket ,,,

new batwig.cst

,,, and some dimensions...

screenshot_1750.jpg

screenshot_1753.jpg

Okay, here it is. But it looks different from your drawing. Simulation screenshots seem match your drawings too.

What am I missing?

covina.png

covina.dxf

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Oops, the ellipse smaller radius is 49 mm, of course. The shape shows it correct, but the drawing dimension is wrong. Please use the updated DXF for reference.

 

covina.dxf

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,,, not,,, small radius of the ellipse => 49/2 = 24.5mm and large radius of the ellipse => 95/2 = 47.5mm

             the center of the ellipse = 110mm from the 0y axis


 I thought my picture above was pretty clear...!!

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1 hour ago, Admin said:

,,, not,,, small radius of the ellipse => 49/2 = 24.5mm and large radius of the ellipse => 95/2 = 47.5mm

             the center of the ellipse = 110mm from the 0y axis


 I thought my picture above was pretty clear...!!

I'm sorry, but this doesn't converge into anything practical :-(

Help needed.

 

covina-2.png

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,,, yes, you're right, my mistake..!!!

   the center of the ellipse = 110/2=55mm from the 0y axis

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On 20.03.2020 at 0:08 PM, Admin said:

 

3.jpg

CUTE! what about SWR? measured with swr-meter?

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,,, this is the comparison

between bester  and batwing antenna...

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This is your batwing made in russia! Wow!

p.s he just a little bit mess with reflector angle

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,,,this batwing antenna is my project...!!!

 

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hm...what if you try to model Batwing with 90 degree 2d-corner reflector?? 0_o

corner reflector antenna with Batwing instead of dipole!

0.36...0.4 wavelength from corner top to axis of batwing

batwing plane in plane of corner's bisector

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