Boundary Condition Settings
Boundary Condition Settings #
This section describes boundary conditions for solvers.
Boundary conditions are one of the important settings for solvers. Selecting appropriate boundary conditions can significantly improve simulation efficiency and accuracy.
PML #
Perfectly Matched Layer. PML boundary conditions can effectively absorb incident or reflected electromagnetic waves from the boundaries of the computing region, preventing wave reflection.
Periodic Boundary #
Periodic Boundary. Calculate the response of an entire periodic system by simulating a single unit.
Bloch Boundary #
Bloch Boundary. If the structure exhibits periodicity, it is applicable to periodic sources incident at a designated angle and single wavelength.
PEC / PMC #
PEC (Perfect Electric Conductor) describes an ideal electric wall, where the electric field parallel to the boundary is zero and the magnetic field normal to the boundary is zero. PMC (Perfect Magnetic Conductor) describes an ideal magnetic wall, where the magnetic field parallel to the boundary is zero and the electric field normal to the boundary is zero. Both correspond to ideal reflective boundaries and are commonly used for mirror symmetry and idealized conductor/magnetic-wall analysis.
Symmetric/Anti-Symmetric Boundary #
Symmetric/Anti-Symmetric Boundary. When setting a symmetric/anti-symmetric boundary, the electromagnetic field in the simulation region also meets the requirements of the symmetric/anti-symmetric configuration.