The Fest3D analysis method is based on a multimode equivalent network representation of waveguide junctions. Each element in the complete circuit is solved with the best available method, ensuring both efficiency and accuracy. On this basis, Fest3D is able to simulate complex passive devices in extremely short times (of the order of seconds or a few minutes), whereas general purpose software (based on segmentation techniques such as finite elements or finite differences) can take hours for the same calculations.
On top of that, unlike traditional mode-matching techniques, the electromagnetic algorithms employed in Fest3D minimize the problems of relative convergence, leading to confidence in the results. Furthermore, the employed integral equation technique extracts part of the frequency dependent computations, resulting in a very low computational time per frequency point when compared to standard mode-matching techniques. This benefit is more evident when high accuracy is required and therefore a large amount of electromagnetic modes is required to analyze the component.
Some of the components that can be analyzed with Fest3D are:
- Filters (Comb-line, Inter-digital, waffle-iron, dual-mode, band-stop, etc.)
- Multiplexers (Diplexers, OMUXs, etc.)