# CST studio suite ® API Reference¶

 device_sim.SimulationGeometry Defines the geometry of the electromagnetic simulation. device_sim.SMatrixOutput Output an SMatrix. device_sim.MacroOutput Running solver specific commands (a Macro) during the simulation phase. device_sim.FileOutput Retrieves a file created during the setup or execution of the simulation. device_sim.Port A combined monitor and source, for use in a physical solver device_sim.Macro Defines a tool-specific macro which will be executed at a specified stage device_sim.MacroFile Defines a macro to be loaded from file
 device_sim.CSTTDSimulation Define a simulation for use with CST Studio Suite ® (Time Domain solver).

## Macros¶

Found under i3.device_sim.cst_macros.

 field_monitor Macro to create a field monitor that covers the full simulation window.