A 2‐pole CPW resonator BPF with attenuation poles using point‐coupled λ/4 resonators | Zendy

Wada Kouji | Zendy; Tatsumi Makoto | Zendy; Kamiyama Tomohide | Zendy; Hashimoto Osamu | Zendy; Harada Hiroshi | Zendy

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A 2‐pole CPW resonator BPF with attenuation poles using point‐coupled λ/4 resonators

Author(s) -

Wada Kouji,

Tatsumi Makoto,

Kamiyama Tomohide,

Hashimoto Osamu,

Harada Hiroshi

Publication year - 2003

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.11297

Subject(s) - resonator , attenuation , band pass filter , narrowband , microwave , physics , point (geometry) , electronic engineering , waveguide filter , filter (signal processing) , acoustics , engineering , electrical engineering , optoelectronics , telecommunications , prototype filter , filter design , optics , mathematics , geometry

The aim of this study is to examine a coplanar bandpass filter (BPF) with attenuation poles using point‐coupled λ/4 resonators. The first part of this paper describes the resonance characteristics of the λ/4 resonators with chosen excitation methods. Secondly, the design of the BPF with attenuation poles using the λ/4 resonators is carried out based on general filter theory with narrowband approximation. A comparison between theory and experiment is also performed. It is confirmed that the method presented is useful for improving the BPF's skirt characteristics using λ/4 resonators. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 101–107, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11297

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