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Recent content by Mohammad_Ali_AbdEl-Raheem

  1. M

    How to measure Co and cross polarization in CST ?

    You should first define your Co-polarization and Cross-polarization. This depends on the antenna type. Co-polarization is the polarization level that matches the polarization you expect from your antenna. Cross polarization is any polarization orthogonal to it. So, look at your antenna. If you...
  2. M

    Opening files older than of CST Studio 2011

    1- I want you first to backup the files, since they may be damaged or lose results while you try opening it with your current CST version, or even when downloading older versions. Resolving the problem of backup seems easy, just change the backed file name to shorter name or change its path...
  3. M

    [SOLVED] squarewave inductive reactance

    I understand from your question that you want to get the transfer function of a pure inductor when it is excited by a square wave. So, we should define the transfer function first: Is it the ratio between the voltage and current (the impedance) in the frequency domain? If the answer is true...
  4. M

    An issue concerning importing voxel models in CST

    @BradtheRad: Thanks for reply. I have already searched and read threads on that topic, they had the easy part of the job I seek. The problem is in the difficult part of the job, which is written in bold italic in the post. Thank you again. Hope that anyone can help.
  5. M

    Electrodynamics, wave equation, velocity of waves

    Re: Maxwell's equations - is there a bigger picture? Could you explain how Gaussian Beam of EM waves violates Gauss's Law? Can you explain how Ampere's Law leads to that equation? And what is meant by the triangle symbol before B, is it Laplacian operator?
  6. M

    Calculating SNR in time and frequency domain

    In your code,In the following line: actualSNR = 20*log10(norm(signal)/norm(x - signal)) add a dot before the backslash division sign, i.e, actualSNR = 20*log10(norm(signal)./norm(x - signal))
  7. M

    How antenna bandwidth designed in cst used in MATLAB OFDM code??

    You can export the S11 plot data of your antenna from CST in ASCII file format (txt file). Then, open that file in MATLAB, read the data inside it to a matrix and use it in your MATLAB code. To export the S11 plot data from CST: view the S11 plot, go to the "post processing" tab, and choose...
  8. M

    An issue concerning importing voxel models in CST

    Greetings... I am using CST studio suite 2015 sp1, and I want to import a voxel model in CST My voxel model is for the human breast. The problem is that the model is highly inhomogenous, in order to simulate the real situation. I mean by highly in homogenous that: each voxel on its own has its...

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