Narrowband beamforming in transmission

Valerio Gloria asked: 2021-12-27 narrowband beamfor... , transmitting beamf... , beamforming

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Expert Answer

Kshitij Singh answered . 2025-07-10 19:34:40

In the direction of yor transmitted beam the waves from the different antennas have to interfere constructively. To achieve this you have to shift the transmitted signals. Something like this (barring sign-errors and whatnot...):

r0 = [0 0 0]; % reference antenna
r1 = [x1,y1,z1]; % one of the other antennas
dr = r1 - r0;
e_n = [randn(1,2),rand(1)];
e_n = e_n/norm(e_n); % some random direction to transmitt towards
S0 = A*exp(1i*w*t)
dphi = 2*pi/lambda*dot(dr,e_n);
S1 = A*exp(1i*(w*t-dphi));

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