Interpolate YZ, ZX and XY antenna polar data into 3D antenna radiation pattern

In order to benchmark antenna performance I have specific measurement equipment capable of measuring power radiated from an antenna considering a specific angle. During a measurement the antenna is rotated around a specifc axis and multiple measurements are taken at different angle.

In total, 3 measurements are done in with the antenna being rotated around its X, Y and Z axis and polar plots are obtained for the antenna rotated in its YZ, ZX and XY plane. below a snaptshot of such measurement:

Next to the polar plot radiated power data values are available for every measurement angle.

I am now looking for ways to interpolate these data points in order to get a 3D antenna radiation pattern plot and I was wondering if this was possible relying on Mathlab before buying a lisence and which extensions I would need.

Answer 1

[Harsh Sharma]

Hi Vincent,

Using the “phi”, “theta” and “power” data values that you have, you can use the following file from MATLAB File Exchange to plot 3D antenna radiation pattern - https://www.mathworks.com/matlabcentral/fileexchange/71973-plot-3d-antenna-radiation-patterns?s_tid=answers_rc2-2_p5_MLT

Please note that the above file requires you to have “Image Acquisition Toolbox”.