pouyan87
Newbie level 1
Hi
i have done matlab code for 3*2 dipole array in xy plane but i am not sure if it is correct or no
this is my code :
if someone know how to do it in matlab plz tell me
and if my code is not correct tell me the mistake
thank u
i have done matlab code for 3*2 dipole array in xy plane but i am not sure if it is correct or no
this is my code :
Code:
%3D Array Factor of a 3x2 planar array antenna
% first step AF calculation %
c=3e8;
f=2e9;
lambda=c/f;
k=(2*pi)/lambda;
L=lambda/2;
n=377;
Io=1;
r=10;
dx=lambda/2; %distance between elements (X)
dy=lambda/4;%distance between elements (Y)
alfa = pi/4; %Phase between elements
AB=[1 1 1 ;
1 1 1 ]; % Array amplitudes
AB_phase=[alfa 2*alfa 3*alfa ;
alfa 2*alfa 3*alfa ]*pi/180; %Array phases
AB_coe=AB.*(cos(AB_phase)+1i*sin(AB_phase));
theta0=0:0.01:2*pi;
phi0=0:0.01:2*pi;
[phi,theta]=meshgrid(phi0,theta0);
sinU=sin(theta).*cos(phi);
sinV=sin(theta).*sin(phi);
% Syn = exp(1i*(n-1)*k*dx*(sinU))
% Sxn = exp(1i*(m-1)*k*dy*(sinV))
for n= 1:3
for m = 1:2
SynSxm =AB_coe(m,n)* exp(1i*(n-1)*k*dx*(sinU))* exp(1i*(m-1)*k*dy*(sinV));
end
end
AF = sum ( sum ( SynSxm));
%%%%%%%%%%%%%%%%%% dipole calculation%%%%%%%%%%%%%%%%%%%%%%%
theta1=0:0.01:2*pi;
E_dipole=1i*n*Io*exp(-1i*k*r)*(1/(2*pi*r))*((cos(k*L*cos(theta1)/2)-cos(k*L/2))./sin(theta1));
E_array = E_dipole.*AF;
polar(theta1, abs(E_array))
if someone know how to do it in matlab plz tell me
and if my code is not correct tell me the mistake
thank u
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