Engineers designing narrowband or high Q structures, working with the CST MICROWAVE STUDIO® (CST MWS) frequency domain solver offers some natural advantages. Additionally, it is often used to crosscheck results with the transient solver for even greater confidence. The introduction of "True Geometry Adaptation" in CST MWS version 2009 represented a major milestone for the derivation of reliable and accurate results for RF FEM solvers.
With version 2011, the CST MWS frequency domain solver will feature curved elements of arbitrary order.
In comparison to using simpler curvilinear elements (first order curved elements), which often suffer from the creation of inaccuracies in the mesh representation, the implementation of higher order curved elements means that the approximation of arbitrary surfaces is much smoother. As with all mesh adaptation schemes, simulations will only converge to the correct results, if mechanisms such as True Geometry Adaptation are used. These actually improve the representation of the input model continuously, rather than simply refining the first discretization of the model.
The arbitrary order curved elements will also be available for the CST MWS eigenmode solver and the fast resonant solver.
The CST MWS frequency domain solver's simulation performance will be further improved by the introduction of domain decomposition. By breaking down the initial problem into several smaller parts that are distributed to a compute cluster, larger and more complex problems can be solved faster. This implemented method promises super-linear speed-ups, even for large numbers of participating nodes.