I have a simple question
I have a dielectric sphere. A plane wave is incident on the sphere. And I want to calculate the far fields. This is what I have done: I created a sphere and a box surrounding the sphere. I assigned plane wave excitation to one of the faces of the box. And I assigned radiation boundary to the other faces of the box. Should I have assigned radiation boundary to all faces? Whats the difference between radiation boundary and PML? Is there anything wrong with my setup?
Btw, I am starting to like HFSS. Plotting capabilities are great.
Dear Huiyuzz,
I am attaching the HFSS project. It is a simple one. There is circular metal with a small hole at the center. A plane wave hits the metal. I want to find the far field radiation patterns. The hole dimensions are subwavelength. I want to check the validity of Bethe's theorem on diffraction from subwavelength apertures