Abstract
The modal scattering matrix method is applied to the rigorous computer-aided design of low-insertion-loss magnetically tunable E-plane metal-insert filters with improved characteristic, where only the resonator sections are loaded with ferrite slabs, and large-gap finline filters on a ferrite substrate of moderate width. The design method is based on field expansion in suitably normalized eigenmodes, which yields directly the modal scattering matrix of key building block discontinuities, which in turn are appropriately combined for modeling the complete filter structure. The theory includes both the higher order mode interaction of all discontinuities involved and the finite thickness of the metal inserts, or metallization. Optimized data are given for magnetically tunable Ku-band (12-18 GHz), Ka-band (26-40 GHz), and V-band (50-75 GHz) metal-insert and finline filter examples. The theory is verified by measurements on the Ku-band metal insert and finlines filters, utilizing ferrite materials.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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 callMore From: IEEE Transactions on Microwave Theory and Techniques
Disclaimer: 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.
