I have the antenna radiation pattern exported from CST. The file is txt file format and contains the angles theta and phi and the directivity. First theta varies between 0 and 180° and phi is 0° and all the directivity values are listed. Then phi is incremented and again theta varies between 0 and 180° and so on, scaning phi in 360°. I would like to plot this data in Matlab and to obtain the pattern from CST. I have tried multiple methods but unfortunately nothing works, unless I create my own antenna element in matlab and simulate it there. However, this is not a solution because I cannot customize as I wish, the antenna type. So, the question is how to create a 3d polar plot in matlab, based on the data from CST? Thank you!