Export 3D radiation pattern in CST to Matlab
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Wilfrid RENKANGA MBATCHI
il 1 Gen 2024
Commentato: Wilfrid RENKANGA MBATCHI
il 23 Gen 2024
Hello everyone, is there a kind soul who could explain to me how I can retrieve the 3D field of an antenna array to use it in my MATLAB calculations? For instance, I want to apply this formula:
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William Rose
il 1 Gen 2024
Modificato: William Rose
il 2 Gen 2024
[edit: Fix spelling errors. Add readmatrix() to my answer. Add discussion of some pros and cons of different data-import functions.]
It seems to me that you may have two different questions. If I misunderstand, please explain.
Question 1. How do I get 3D data from the CST suite into Matlab?
CST has an option to export data in text format, also known as ASCII format. Use that option to create a .txt file. Then use the Matlab interactive import data tool, or use readtable(), or use readmatrix(), or strip off the header info in the .txt file, then use load() to import the data. See the help for import data tool, readtable, readmatrix, and load for details. readtable() creates a table, and if you are new to matlab, you may find it slightly more complicated to work with a table. An advantage of readtable(), compared ot load(), is that readtable() brings the column header information into the Matlab environment. load() is simple to use. readtable() can read data from different types of text files and .xls and .xlsx files. readtable() can skip a certain number of header lines. readtable() can read a specific rectangular cell range, if the input file is a .xls or .xlsx.
Question 2. Once I have imported the 3D data, how do I do numerical integration?
That depends quite a lot on the data format and the problem, so I suggest you post a data file, and specify variables and limits of integration, etc., in order to get useful assistance.
Good luck!
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