Abstract
A practical method for extracting the coupling matrix from measured or electromagnetic simulated S-parameters of narrow band cross-coupled filters with large losses is presented in this paper. The method can be applied to computer-aided tuning or computer-aided design of microwave filters to accelerate the filter design and physical implementation. The modified band-pass to low-pass transformation is applied to remove loss from the simulated or measured S-parameters. The Cauchy method is applied to determine the rational polynomials. A simple practical method is presented to determine the phase shift accurately. After the phase shift effect is removed, it is possible to synthesis a prototype low-pass network using well established techniques once the topology of the filters has been assigned. Two examples verify the method successfully in detail.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
