FILPRO

Filpro is an extremely flexible software package developed in a novel approach for fast synthesis, circuit transformation and analysis of lumped and distributed element filtering, multiplexing, matching and coupling structures. The distinguishing characteristics of the approach is modularity of all design steps. Almost all the synthesis and circuit transformation techniques available in literature are programmed as independent modules and placed in different toolboxes (menus).

A password is required to execute the program; enter 1395223824 when you are asked. Manuals are avaiable for download on the site as well.