Symmetry and symmetry conditions on boundaries

Symmetry

When a device has symmetry planes, it is possible to represent a fraction of the device, and to set appropriate symmetry conditions on the symmetry planes.

From a physical point of view, the symmetry boundary conditions are set on the state variable (potential).

Symmetry condition	Anti-symmetry condition

Example

Let's reconsider the preceding example.

The boundary conditions applied on the device boundaries are symmetry conditions (tangential field) on boundary 1 and anti-symmetry (normal field) on boundary 2.