CST EM STUDIO® - Providing a wide range of 3D Simulators for low frequency applications

CST EM STUDIO®(CST EMS) offers customers to select from an electrostatics, a magnetostatics, a stationary current flow, a low frequency Frequency Domain and a thermal solver. Results can be transferred from one solver to another in order to simulate coupled problems.

Users of CST EMS have access to the advantages of both orthogonal and tetrahedral meshing in one 3D EM simulator. Customers will now be able to choose the method (Method on demand™) and the mesh (Mesh on demand™) best suited to a particular structure. This extension joins innovations such as the PERFECT BOUNDARY APPROXIMATION (PBA)® in 1998, and the Thin Sheet Technique(TST)™ in 2001. Users will also draw the additional benefit of cross-checking results with different simulation technologies if desired.

The Electrostatics Field Solver is useful for a wide range of static or quasistatic applications like high voltage devices, or capacitors of any kind.

The Magnetostatics Field Solver is a very fast alternative to the low frequency solver. It is mostly used when eddy currents are not important or when materials have a non linear characteristic. Additionally an automated impedance calculation is available.

The Stationary Current Field Solver is mainly used to compute current distributions in lossy materials. In a second step these field distributions can be used for a magnetostatics computation.

The Electro Quasistatics Solver is particularly useful for slowly variying fields in the presence of low conductivity materials.

The Low Frequency Domain Solver applies for low frequency problems with non negligible losses. Eddy currents, loss densities and energy densities can be calculated in addition to electric and magnetic fields. Moreover it contains an option to consider wave propagation in a device (this means that the displacement current is considered)

The Thermal Solvers are designed to solve simple thermal problems which often occur in conjunction with high energy or PCB-simulations. The thermal solvers are capable of solving stationary or transient temperature distributions.

As an unique feature, most CST EMS's solvers can be switched from Cartesian to tetrahedral meshing. Besides segmented representation of curved surfaces, a true surface mesh as shown below increases accuracy and speed.