Characteristics of Short-Ended Coplanar Waveguide Resonator with Low Spurious Response and Its Application to a Bandpass Filter
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概要
- 論文の詳細を見る
Basic characteristics of a short-ended coplanar waveguide (CPW) resonator of good spurious suppression property is studied. The resonator is loaded with open tubs at its middle position and makes a fully planar structure. The length of the resonator is shortened almost by half and the first spurious resonance goes up to more than 3 times of the fundamental resonant frequency without degradation of unloaded Q(Q_0). The origin and property of spurious response is thoroughly investigated to show the advantage and the limit of this configuration. The external Q(Q_e) and fundamental resonant frequency of the resonator are also clarified theoretically and experimentally. Using those result, a bandpass filter (BPF) is designed on the basis of the narrow band approximation is realized and its transmission characteristics are examined theoretically and experimentally. The spurious suppression characteristics have been realized by the present filter in accordance with the expectation.
- 社団法人電子情報通信学会の論文
- 1999-01-25
著者
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Awai Ikuo
Department Of Electrical And Electronic Engineering Faculty Of Engineering Yamaguchi University
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Iwamoto Yasuo
Department Of Electrical And Electronic Engineering Faculty Of Engineering Yamaguchi University
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Wada Kouji
Department Of Electrical And Electronic Engineering Faculty Of Engineering Yamaguchi University
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Wada Kouji
Department Of Bioscience And Biotechnology College Of Agriculture University Of The Ryukyus
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