Plotting polarization of EM waves in Matlab

  • #1
yefj
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Homework Statement
plotting EM polarized wave in matlab
Relevant Equations
polarization ellipse
Hello , there is a polarization matix I want to implement in matlab.
I have build a basic matlab plot which could visualize EM waves in 3D.
The basic equations described in equation 2.5.1 from the attached link.
given the simple case of linear polarization, What is the strategy of plotting 2.5.1 EM representation like in the photo below?
Thanks.
https://eceweb1.rutgers.edu/~orfanidi/ewa/ch02.pdf
1731054023577.png

1731053037025.png

matlab 3D wave plot:
clc
clear
x = linspace(0,4*pi,100);
figure;
plot3(x,zeros(1,100),zeros(1,100),'k','LineWidth',2);
hold on
plot3(x,-sin(x),zeros(1,100),'k');
plot3(x,zeros(1,100),sin(x),'k');
x_quiver = 0:pi/4:4*pi;
q1 = quiver3(x_quiver,zeros(1,17),zeros(1,17),zeros(1,17),-sin(x_quiver),zeros(1,17),0);
q2 = quiver3(x_quiver,zeros(1,17),zeros(1,17),zeros(1,17),zeros(1,17),sin(x_quiver),0);
hold off;
 

Attachments

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FAQ: Plotting polarization of EM waves in Matlab

What is polarization of electromagnetic (EM) waves?

Polarization of electromagnetic waves refers to the orientation of the electric field vector in the wave. It describes how the electric field oscillates in space as the wave propagates. Common types of polarization include linear, circular, and elliptical polarization.

How do I plot the electric field of a polarized EM wave in Matlab?

To plot the electric field of a polarized EM wave in Matlab, you can define the electric field vector as a function of time and space, then use the 'plot' function to visualize it. For example, you can create a time vector and calculate the electric field components based on the desired polarization type, then plot them using Matlab's plotting functions.

What functions in Matlab are useful for plotting EM wave polarization?

In Matlab, useful functions for plotting EM wave polarization include 'plot' for 2D plots, 'quiver' for vector field representations, and 'surf' for 3D surface plots. The 'hold on' command can also be used to overlay multiple plots for better visualization of different polarization states.

How can I visualize circular polarization in Matlab?

To visualize circular polarization in Matlab, you can create two orthogonal electric field components that are 90 degrees out of phase. You can then plot these components over time to illustrate the circular motion of the electric field vector. Using the 'plot' function for both components can help show the circular path traced by the electric field.

Are there any toolboxes in Matlab that can help with EM wave simulations?

Yes, Matlab offers several toolboxes that can assist with electromagnetic wave simulations, including the Communications System Toolbox and the RF Toolbox. These toolboxes provide functions and tools for modeling, analyzing, and visualizing electromagnetic fields and waves, making it easier to handle complex simulations.

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