scattering hfss

Hi all,

I need to model the scattering characteristics of a conductor sphere of any size in hfss. I dont know how to define a plane wave and creat boundaries. How should I define the PML ? Which sides should be master / slave ?
Could you please send a sample or explain how to do ?

Thanks

Plane wave can be set in the "Exciation"

Thanks. What I am doing is
defining a sphere at origin with a conductor with radius = 1mm
defining a cubical radiation boundary at origin with dimensions = 3 mm
defining a excitation at x=4 mm y=0 z=0

is this correct? how should i define my excication vectors ?

thanks