Help, in comsol how to set a perfect plane wave (3D)?

[jackie_young]

Hello everyone,

I am recently doing some 3D scattering simulation. I use a plane wave as the illumination field,specifically i set a cubic configuration surrounded by PML. I chose one interior boundary and set it as Transition Boundary Condition and set the Ex=1 (x-polarized plane wave propagating along z direction). I also set the outmost boundary as PEC (perpendicular to Ex) and PMC (perpendicular to Hy). I have two questions in fact:

(1) what boundary condition should i set in the Z direction (along the incident beam),PMC?PEC? or others ?

(2) whether i am right to set the incident plane wave in such a way ?

Thanks a lot !

 

[anorlunda]

We have several prior threads that can help you.
https://www.physicsforums.com/search/25855/?q=comsol++plane+wave&o=relevance