CST CABLE STUDIO® (CST CS) incorporates a fast and accurate transmission line modeling technique for cable harness configurations in three-dimensional metallic or dielectric environment. The tight integration in CST STUDIO SUITE® makes co-simulations with CST MICROWAVE STUDIO® (CST MWS) and CST DESIGN STUDIO™ (CST DS) possible, thus providing a large spectrum of simulation applications in cabling system design. The combination of the 2D transmission line modeling technique with 3D full wave simulation methods is a very efficient way of investigating EMI effects in electrically large systems.
CST CS generates equivalent circuits for wires and cables based on the classical transmission line theory. It automatically subdivides the cable harness into sections with homogeneous cross-section and calculates primary and secondary line parameters with respect to surrounding enclosures. Skin effect and dielectric loss are accurately modeled in both frequency and time domain. In a final step CST CS creates SPICE equivalent circuits for network simulation.
The resulting transmission line models can be used directly in CST DS or CST MWS to perform simulations in time or frequency domain and to investigate electromagnetic interference effects.