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beam stearing theory not working in CST simulation

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yefj

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Hello, I have constructed an 5X1 patch array where there is zero phase between elements i get the pattern shown bellow,
but when i do 0 30 60 90 120 phase exitation the beam moved only ny 8 degrees.
Why is that?
Where did i go wrong?
1625252463992.png

1625252571985.png

1625252689411.png
 

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Your result is consistent with this online calculator:

CALCULATOR

PARAMETERS Frequency: MHz Number of elements: 1 2 3 4 5 6 7 8 9 10 Inter-element distance: mm Antenna e...
antennaarraycalculator.blogspot.com antennaarraycalculator.blogspot.com

phasedarraycalc.png
 

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The element spacing (81mm) is near 1λ. Make it λ/2 and you will get about 15 deg.
 

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