2D beam steering formula

yef smith

Joined Aug 2, 2020
602
Hello i have sucseeded in 1D beamsteering by applying phase into the formula of phase=(2p/lambda)*d*sin(alfa)
if i have an 1X4 array then we add phase as following:
1st phase : 0
2nd phase : phase
3rd phase : 2*phase
4th phase : 3*phase
this method works like a charm.

now i want to implement 2D beam steering.
how do i calculate the phase in 4X4 elements array
so the main beam will shift 10 degrees left and 20 degrees up?
What is the mathematical logic to do it?
Thanks.

yef smith

Joined Aug 2, 2020
602
Hello Andrewmm,SO if i have 4x4 array and i want to stear it 10 degrees to the left(x direction) and 20 degress down (y direction)

for the X direction i put
1st phase : 0
2nd phase : x_phase
3rd phase : 2*x_phase
4th phase : 3*x_phase
in every row
but how do i adjust the phase to pull down the beam 20 degrees?
my intuition says i should add 20 degree correction in the columns.correct?
could you please visualise it for me?

Thanks.

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