Wideband bandpass filter based on ring resonator with high selectivity and multiple transmission zeros | Zendy

Zhou J.G. | Zendy; Chiang Y.C. | Zendy; Che W.Q. | Zendy

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Wideband bandpass filter based on ring resonator with high selectivity and multiple transmission zeros

Author(s) -

Zhou J.G.,

Chiang Y.C.,

Che W.Q.

Publication year - 2014

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2013.2908

Subject(s) - wideband , band pass filter , resonator , transmission (telecommunications) , electronic engineering , prototype filter , filter (signal processing) , materials science , computer science , optoelectronics , telecommunications , engineering , low pass filter , electrical engineering

A high‐selectivity wideband bandpass filter consisting of a ring resonator and stepped impedance resonators is proposed. A wideband bandpass filter with multiple transmission poles and transmission zeros is obtained. For demonstration, a prototype operating at the frequency band of 4.14–9.56 GHz (with a fractional bandwidth of 79.1%) is designed and fabricated. Good agreements between the simulated and the measured results have been observed, indicating a very sharp out‐of‐band rejection.

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