# Lossy Metal Subpixel Averaging
subpixel.lossy_metal: Subpixel method applied to lossy metal interfaces.
- Options:
SurfaceImpedance(opens new window): Apply a first-order surface impedance boundary condition forLossyMetalMedium.Staircasing(opens new window): Use staircased material assignment on structure boundaries.VolumetricAveraging(opens new window): Average material properties over the Yee-cell volume.
- Default:
SurfaceImpedance(opens new window)
subpixel.lossy_metal.timestep_reduction: Reduction factor applied to the simulation time step when the surface-impedance model is used.
- Type: floating-point number
- Constraint: greater than or equal to 0 and less than 1
- Default: 0
subpixel.lossy_metal.edge_singularity_correction: Toggle edge singularity correction for lossy metal interfaces.
- Type: Boolean
- Default: True
Edge correction applies to straight metallic edges aligned with the primal grid, with wedge angle equal to 0 or 90 degrees.