Synthesis and design of dual-wideband filter with composite series and shunt resonators
Refereed conference paper presented and published in conference proceedings

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AbstractThis paper presents a novel dual-wideband bandpass filter comprising of composite series and shunt resonators and its direct synthesis and design theory. The composite series and shunt resonators can produce a transmission pole (TP) as well as a transmission zero (TZ) flexibly. A shunt capacitor at input/output (I/O) port is introduced to contribute an extra TP. A dual-wideband response with high skirt-selectivity can be achieved by appropriately arranging the TPs and TZs. To synthesize the lumped element prototype of filter, the filtering function is firstly obtained by iteratively solving a deterministic linear problem and the circuit model is found by a circuit extraction procedure. As an example, a dual wideband bandpass filter with fractional bandwidths of 40% and 20% at center frequencies of 1 GHz and 2 GHz is directly synthesized, fabricated and measured. An expected characteristic is obtained.
Acceptance Date24/12/2016
All Author(s) ListZhiliang Li, Ke-Li Wu
Name of Conference2017 IEEE MTT-S International Microwave Symposium (IMS)
Start Date of Conference04/06/2017
End Date of Conference09/06/2017
Place of ConferenceHonolulu
Country/Region of ConferenceUnited States of America
Proceedings Title2017 IEEE MTT-S International Microwave Symposium (IMS)
Year2017
Month6
ISBN978-1-5090-6361-1
eISBN978-1-5090-6360-4
LanguagesEnglish-United States

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