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mesh and surf plots are helpful. but u shud specify the x and y axis.
the trend is to plot in U-V plane , not in x-y-z co-ordianate. in this case u=sinΘcosΦ and v=sinΘsinΦ and the amplitude will be in z direction... try it
Just an additional thought. The plotting functions I suggested are all rectangular in nature while radiation patterns in reality are spherical.
I find the rectangular formats, both in 2D and 3D more useful to evaluate while polar or spherical formats are more consistent with our intuition but more difficult to analyze.
That is like the argument of about whether a RPN calculator is better than an algebraic entry one. (I like RPN hands down.) Use what is best for you and your application.
Most pattern ranges collect measurements on a 2D basis. With careful attention to the alignmernt of the cuts one could create a 3D matrix describing the 4Π steradian pattern.
Automated ranges often provide this type of information but they are not numerous and certainly not inexpensive.
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