CST (Computer Simulation Technology) [3] offers solutions for static, stationary, low and high frequency problems.
CST MWS (CST MICROWAVE STUDIO) is an accurate and fast three-dimensional high frequency simulator for electromagnetic problems. Its frequency domain solver performs on tetrahedral as well as on hexahedral meshes. CST MWS can be linked with external simulators to a larger design environment through the open architecture CST DESIGN STUDIO. It can extract parameters ready for further SPICE analysis and provides filters for specific CAD input.
CST DS (CST DESIGN STUDIO) divides complex systems into smaller system parts, each described by its S-matrix. The particularly best suited simulator to each sub-system is applied. Thus the behaviour of the entire system is analysed more efficiently within a few seconds. Analytical models or measured components (e.g. transmission lines) can also be considered.
CST EMS (CST EM STUDIO) facilitates static and low frequency device simulation. CST EMS offers different solver techniques for electrostatics, magnetostatics, current flow, low frequency, and stationary temperature problems. In order to analyze coupled problems, the results obtained by one of the solvers can be transferred to another. The same three-dimensional electromagnetic simulator supports both, orthogonal and tetrahedral meshing. It chooses automatically the method (method on demand) and the mesh (mesh on demand) best suited to a particular problem and structure, respectively. If desired, different simulation technologies can be applied to a problem for cross-checking the results.
The electrostatic solver is utilized for static or quasi-static problems (for example to calculate the field between the electrodes of a capacitor). When eddy currents are negligible or when nonlinear materials are used, the magnetostatics solver is mostly used. Additionally it provides automated impedance extraction. Magnetostatic computation like current distributions in lossy materials are provided by the stationary current solver. The quasi-electrostatics solver applies for slowly varying fields in the presence of low conductivity materials. The low-frequency frequency domain solver has been developed for lossy low-frequency applications to calculate eddy currents, loss densities, and energy densities. Thereby, the wave propagation in a device can be also considered, because the displacement current is taken into account. For the thermal problems the thermal solver is used. Most solvers can be switched from orthogrid generation to tetrahedral meshing.