The Orthogonal Polarization port is available in 3D and 2D. When the Type of Port is set to Periodic under Port Properties, this subnode is available from the context menu (right-click the Port parent node) or from the Physics toolbar, Attributes menu.

Use the Orthogonal Polarization port to define port with a mode that is orthogonal to the mode of the parent Periodic Port. Normally a Orthogonal Polarization node is added automatically during the Periodic port setup, but the Orthogonal Polarization port subnode is also available from the context menu (right-click the parent node) or from the Physics toolbar, Attributes menu. Only one Orthogonal Polarization node can be added per parent Periodic Port.

Enter a unique Port name. Only nonnegative integer numbers can be used as Port name as it is used to define the elements of the S-parameter matrix and numeric port names are also required for port sweeps and Touchstone file export.

The Orthogonal Polarization port is a listener port feature.

The Orthogonal Polarization port represent a zero-order mode (same as assumed for the parent Periodic port). Thus, the Diffraction order settings are just for information and cannot be edited.

Enter a value or expression for the Mode phase θin (SI unit: rad). The default is 0 radians. The Mode phase setting is further discussed for the Port feature.