Abstract
ABSTRACTAn ultrawideband (UWB) bandpass filter consisting of stepped‐impedance resonators cascaded by parallel‐coupled two‐line and three‐line structures is designed to satisfy Federal Communications Commission's spectrum mask. First, a simpler equivalent circuit for the parallel‐coupled three lines is derived based on the transmission line theory. Then, after the derivation of the Chebyshev‐type transfer function, the filter's characteristic equation relating the circuit parameters to the frequency responses is derived mathematically. Accordingly, a UWB filter with a fractional bandwidth up to 110% is synthesized. The designed filter is then simulated and fabricated. The measured results agree well with the predicted ones, which validates the effectiveness of our new models and the corresponding synthesis theory. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2689–2692, 2013
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.
