A port is a mathematical representation of where energy can enter (source) or leave a model (sink). Use a port to add sources and discrete loads to a model.

The following types of ports are supported:
  1. wire port
  2. edge port
  3. microstrip port
  4. waveguide port
  5. FEM line port
  6. FEM modal port
  7. cable port

Use an appropriate port for a model to obtain more accurate results.

Generally, ports are created on geometry items and such ports contain only a geometry instance. When the geometry part (containing a port) is meshed, a mesh port instance is created automatically. If the mesh is unlinked, the mesh instance of the port is displayed in the model tree.

Ports can be created directly on unlinked meshes, but this option should only be used for imported meshes or in cases where the geometry is no longer available.

Note: Conventional current is defined as the current that flows through the port from the negative side to the positive side.

View the geometry and mesh instances of the ports in the model tree (Construct tab).

Figure 1. Example of (1) a geometry part that was meshed and its geometry port instance (port icon in green), and (2) a mesh part that has a simulation mesh with a mesh port instance (port icon in blue).
  • The icon indicates the geometry instance of the port.
  • The icon indicates the mesh instance of the port.