Re: for cross couple filter
In FILPRO VERSION-2.5, Symmetric Cross Coupled Circuits option is used for several purposes:
-Analysis and tuning of symmetric coupled structures like symmetric cross coupled filters, branchline directional couplers, parallel coupled line directional couplers, rat race hybrids can be carried out with this option. The even and odd mode half approach is used for analysis of such structures.
-Linear phase canonic cross coupled filters can be designed using the prototypes available in literature.
-Selective Linear phase cross coupled filters with one or two finite transmission zeros on s=jw axis and one transmission zero on s=real axis can be synthesized by just typing in the specifications and tuning several elements of the filters.
See **broken link removed**