The Finite Integration Technique

The combination of the proprietary PERFECT BOUNDARY APPROXIMATION (PBA)® with the unbeatable efficiency of the Finite Integration Technique (FIT) is the basis for CST MICROWAVE STUDIO® success.

In time domain the numerical effort of FIT increases more slowly with the problem size than other commonly employed methods. So larger and more complex structures are feasible.

PBA is a conformal method, which allows arbitrarily shaped objects to be sampled rather coarsely on the mesh. This reduces the mesh and thus also the required memory size and solution time without compromising accuracy. PBA is consequently developed to comprise all the techniques that we summarize as SmartGrid™.

These advantages plays an increasingly important role as problems become more complex and frequencies rise.