Consider me a pure beginner in the field of EM waves. I am supposed to model the scattering of high frequency EM waves (~ 2.4 GHz) from a particle (r ~ 10e-6m) using COMSOL .Its a case of Mie Scattering. I know that I supposed to use the RF module - EMW Frequency Domain model. I have attached the figure of the geometry which contains a sphere at its center and a PML layer is taken at outer part. It would be very grateful if anyone can help me with the Parameters and Variable definitions to use and also the Boundary Conditions I am supposed to employ in the domain.