Synthesis

FEST3D includes the possibility to automatically design several types of components from the user specifications making use of the so-called Magic Tools. Up to know, the user can easily design band-pass filters, low-pass filters, rectangular tapers and Y-junction diplexers.

The synthesis stage performs full-wave simulations to consider higher waveguide modes. Thanks to this and to particular algorithms employed in each case, the synthesis process provides very good responses with respect to the user specifications.

Once the synthesis process is finished, the full structure is simulated and the full-wave result compared to the theoretical one.

In version 6.0, a very powerful synthesis tool for inductive bandpass filters has been included. With such a tool, 25-30% BW filters can be automatically designed without the need of post-optimization!

In version 6.5, advanced synthesis tools for lowpass filters have been added, including rectangular w and w/o rounded corners, coupled iris filters and coaxial lowpass filters. In all cases, post-optimization is barely required due to the consideration of high-order modes during the synthesis procedure.

Comming soon (version 6.6):
- Bandpass synthesis tool: More types of geometries including metal inserts and posts.
- Synthesis tool for narrowband dual-mode filters based on cylindrical resonators.