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jbckdsav

4x4 1700/2700 feed

for which antenna ... ???
where is Harry36's original drawing ... ???

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,, these would be the dimensions ...

screenshot_677.jpg

PCB material double plated FR4 #0.5mm

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On 05.02.2022 at 10:09, jbckdsav said:

65 cm dish CST simulation.

simulate.png

 

 

Due to the deviation of the phase center of the antenna from the focus of the mirror, the direct direction of the beam from the mirror deviated. All 4 beams will eventually be directed in different directions. It's not good at all. it is not intended for feed.

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something is OFF , i think it is SPILLING signal OUTSIDE the dish , maybe with some wall side box...or a RIM...

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19 hours ago, clanon said:

something is OFF , i think it is SPILLING signal OUTSIDE the dish , maybe with some wall side box...or a RIM...

I figured out what's wrong

When the reflector was added to my project, it was not coaxial to the stern and the offset angle was not observed.

Because of this, the deviation on the first port is almost zero.

 

2700_1_3D.png2700_1_2D_phi90.png2700_1_2D_Theta90.png

 

2700_2_3D.png2700_2_2D_phi90.png2700_2_2D_Theta90.png

Edited by Harry36
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3.

2700_3_3D.png

2700_3_2D_phi90.png

2700_3_2D_Theta90.png

 

4

2700_4_3D.png2700_4_2D_phi90.png

2700_4_2D_Theta90.png

Edited by Harry36

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