A Preconditioner for Synthesizing Dispersive Bandpass Filters Using Isospectral Flow Method
Refereed conference paper presented and published in conference proceedings


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AbstractSynthesizing a bandpass filter with linearly frequency-dependent dispersive couplings using isospectral flow method suffers from plurality of local minimums. A legitimate preconditioner in conjunction with the isospectral flow method is proposed in this paper. The preconditioner can avoid the local minimum issue and lead to fast convergence of the isospectral flow method. A simple but generic strategy to find a preconditioner is proposed in this paper together with its clear physical insight. A forth-order waveguide filter with two strong dispersive couplings is synthesized and manufactured to demonstrate the effectiveness of this method.
All Author(s) ListYan Zhang, Ke-Li Wu, Fabien Seyfert
Name of Conference2019 IEEE Asia-Pacific Microwave Conference (APMC)
Start Date of Conference10/12/2019
End Date of Conference13/12/2019
Place of ConferenceSingapore
Country/Region of ConferenceSingapore
Proceedings Title2019 IEEE Asia-Pacific Microwave Conference (APMC)
Year2019
Month12
PublisherIEEE
Pages348 - 350
ISBN978-172813517-5
LanguagesEnglish-United States
Keywordscoupling matrix, dispersion, similarity transformation, preconditioner

Last updated on 2020-25-10 at 00:12