how to plot array factor from feko or Hfss to matlab

how to plot array factor from feko or Hfss to matlab

how is the file to be extracted and what is the matlab code?

Answer 1

[MANIK]

Hi @Nancy Shaker

As per my understanding you are trying to extract the array factor data from FEKO or HFSS and plot it in MATLAB.

To plot the array factor in MATLAB, you can export the array factor data from FEKO and HFSS as text files with the .txt or .csv extension respectively.

Once the array factor date is exported to a file, you can read it into MATLAB and plot it using the built-in plot functions in MATLAB.

Here’s a sample code which can help you out:

 % Load array factor data
A = load('array_factor.txt'); % replace file name with your actual file name
  
% Extract theta and phi angles and array factor values
  theta = A(:,1);
  phi = A(:,2);
  AF = A(:,3); % Specify other parameters such as array geometry and frequency if available
 
% Plot array factor data in polar plot
  polarplot(theta, AF); % or plot3(theta, phi, AF) for 3D plot
  
% Add labels and formatting as desired
  title('Array Factor Plot');
  legend('Array Factor');
  grid on;

You can explore more about the function polarplot from Plot line in polar coordinates - MATLAB polarplot - MathWorks India

[Nancy Shaker]

Hi @MANIK

thanks for your answer,

im still confused which file i have to use.

could you check the three attched files .txt, .dat .ffe

Do i have have to change file and change extension, & colomn formatting?

and delete the titles of rows?

and also how to plot in cartesian not polar?

[MANIK]

Hi @Nancy Shaker

As per my understanding you are facing problem in plotting the data. You can have a look at a similar question, where they have plotted the graph from a .txt file.

How to plot graph using data from a text file? - MATLAB Answers - MATLAB Central (mathworks.com)