Technique for Improving Out-of-Band Characteristics of Planar Microwave Filters Using Tapped Resonators
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概要
- 論文の詳細を見る
A simple method for improving out-of-band characteristics of a planar microwave filter is proposed. We clarify the close relationship among 'tap connection,'`attenuation pole' and `spurious responses' in filter design, theoretically and experimentally. Firstly, the basic characteristics of the resonator depending on the excitation method are examined. We show that skirt characteristics can be improved and spurious responses can be suppressed by using the tap connection technique. Secondly, the application examples of bandpass filters (BPFs) on the basis of the resonator with our principle are provided. It is confirmed that the resonator depending on the excitation method is useful for improving out-of-band characteristics of the planar microwave filter.
- 社団法人電子情報通信学会の論文
- 2002-02-01
著者
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HASHIMOTO Osamu
Aoyama Gakuin University
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Hashimoto Osamu
Aoyama Gakuin Univ. Sagamihara‐shi Jpn
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Wada Kouji
Aoyama Gakuin University
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Wada K
Department Of Bioscience And Biotechnology Faculty Of Agriculture University Of The Ryukyus
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Wada K
Univ. Electro‐communications Chofu‐shi Jpn
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Hashimoto O
Department Of Electrical And Electronic Engineering Aoyama Gakuin University
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NAKAGAWA Kouichi
Aoyama Gakuin University
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HARADA Hiroshi
Yokogawa Denshikiki, Co., Ltd.
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Wada Koji
Department Of Bioscience And Biotechnology Faculty Of Agriculture University Of The Ryukyus
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Wada Koji
Faculty Of Agriculture University Of The Ryukyus
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Harada Hiroshi
Yokogawa Denshikiki Co. Ltd.
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Hashimoto Osamu
Department of Electrical and Electronic Engineering, Aoyama Gakuin University
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