Polar Plotting Aperture Antennas in E and H plane

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atarli 2013-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/90540-polar-plotting-aperture-antennas-in-e-and-h-plane

评论： mohamed moumou 2021-1-3

I want to plot these equations on polar plot, I tried it many times but couldn't do. Can someone help me to plot them and I can learn it by looking the code, image file of equations on image file; very very thanks.

in E plane (phi=pi/2)

Er=Ephi=0

Etheta= [(j*a*b*k*Eo*exp(-jkr)) / (2*pi*r)] * [(sin(((k*b)/2)*sin(theta) / ((k*b)/2)*sin(theta)]

in H plane (phi=0)

Er=Etheta=0

Ephi= [(j*a*b*k*Eo*exp(-jkr)) / (2*pi*r)] * {cos(theta)*[(sin(((k*b)/2)*sin(theta) / ((k*b)/2)*sin(theta)]}

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回答（1 个）

sixwwwwww 2013-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/90540-polar-plotting-aperture-antennas-in-e-and-h-plane#answer_100014

在 MATLAB Online 中打开

Dear Atarli, here is the code for your equations if I understood correctly:

theta = 0.01:0.01:2 * pi;
a = 1;
b = 1;
k = 1;
Eo = 1;
r = 1;
prefactor = (1j * a * b * Eo * exp(-1j * k * r)) / (2 * pi * r);
E_theta = prefactor * ((sin(k * b * sin(theta) / 2)) ./ (k * b * sin(theta) / 2));
figure, polar(theta, abs(E_theta))
figure, polar(theta, angle(E_theta))
E_phi = prefactor * cos((sin(k * a * sin(theta) / 2)) ./ (k * a * sin(theta) / 2));
figure, polar(theta, abs(E_phi))
figure, polar(theta, angle(E_phi))