beam width direction in circular motion in phased.Platform system object

Hello, I am using phased.Platform system object to model a circular trajectory for radar. the targets are out of circular trajectory but in the same plane as the radar. How should I check whether the radar is scanning out of the circle or inside it? I think phased.Platform in circular scan mode, scans targets that are out of circular trajectory by default but this is not mentioned in help.phased.Platform. can anyone help me with this issue? thanks for your time and consideration.