CST MICROWAVE STUDIO® - Providing Complete Technology for High Frequency 3D EM Field Simulation

CST MICROWAVE STUDIO®(CST MWS) 2008 invites customers to choose between five powerful solver modules, the Transient Solver, the Eigenmode Solver, the Frequency Domain Solver, the "Resonant: Fast S-Parameter" Solver, the "Resonant: S-Parameter, Fields" Solver (formerly known as Modal Analysis), and as the latest addition in CST MWS 2006B the Integral Equation Solver, each offering distinct advantages in their own domains.

CST MWS is the first commercial high frequency EM simulation code to offer the advantages of both Cartesian and tetrahedral meshing in one 3D EM simulator. Customers are 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 PERFECT BOUNDARY APPROXIMATION (PBA)® (1998), the THIN SHEET TECHNIQUE (TST)™ (2001), and, most recently, the MULTILEVEL SUBGRIDDING SCHEME™ (2003). Users will also draw the additional benefit of cross-checking results with different simulation technologies if desired.

The Transient Solver is the flag ship module of CST MWS. It is very flexible and can be applied to most electromagnetic field problems. Broadband simulations can be performed with an arbitrary fine frequency resolution. Field results for many frequencies can be derived form one single simulation run. Read more about the Transient Solver.

The Eigenmode Solver is of particular interest in the design of filters, diplexers, and cavities. It efficiently calculates a finite number of modes in closed - also lossy - electromagnetic device. Periodic boundaries enable the study of slow wave (e.g. TWT's) and crystal type structures. Read more about the Eigenmode Solver.

The Frequency Domain Solver solver is particularly useful for applications operated with a comparatively low frequency, i.e. the structure size is much smaller than the wave length. Another typical application area is periodic structures like antenna arrays, FSS, PBG,... . CST MWS offers a Floquet-mode boundary condition that not only improves accuracy and simulation speed, but also distinguishes between main and grating lobe for phased arrays. Scan angle analysis becomes an easy task. Read more about the Frequency Domain Solver.

In addtion to the general purpose Freqeuncy Domain Solver, CST MWS features two specialized solvers for resonant structures: Resonant: Fast S-Parameter and Resonant: S-Parameter, Fields. Both of them are applicable to non radiating and preferably high-Q strucutres. Read more about CST MWS's Resonant Solvers.

The latest addition to the palette of available solvers is the Integral Equation Solver. It is based on the Multilevel Fast Multipole Method (MLFMM). Its main area of usage is the simlation of structures much larger than 20 wavelengths and is of particular interest because of its ability to deal with dielectric losses. Typical application examples include antenna placement on an airplane and radar cross section (RCS) calculations of large scattering objects. Read more about CST MWS's Integral Equation Solver (MLFMM).