I wish to draw the distribution of electric field amplitude and phase at a given distance from my patch antenna in cartesian coordinates.someone has already done!?
Depending on which direction you want to observe your E or H fields distribution (phase and magnitude) you can define your reference plane at any distance you want (by modelling a shaped plane along xoy,xoz..) then define your monitor at the frequency of interest and finally run the simulation. After simulation you can explore the results in the navigation tree as usual.