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

✍ Scribed by Kouji Wada; Makoto Tatsumi; Tomohide Kamiyama; Osamu Hashimoto; Hiroshi Harada

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
328 KB
Volume
40
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

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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