A Class of a Planar Duplexer Consisting of BPFs with Attenuation Poles Designed by Manipulating Tapped Resonators(Special Issue on Microwave and Millimeter Wave Technology)
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概要
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In this paper we describe the investigation of design methodology of a planar duplexer consisting of BPFs using mixed tapped resonators. Firstly, we propose the planar duplexer consisting of bandpass filters (BPFs) using a tapped open-ended λ/2 resonator and a tapped λ/4 resonator. The duplexer is designed based on the general filter theory with narrow band approximation and tap-coupling technique. The actual duplexer is fabricated using a coplanar waveguide (CPW). Secondly, downsizing of the planar duplexer is carried out based on the BPF using stepped impedance resonators (SIRs). Lastly, another type of duplexer consisting of different BPFs using mixed tapped resonators is investigated in the same manner. The results of this study lead us to the conclusion that the design methodology is useful for realizing the high-performance planar duplexer fabricated without increasing the number of elements.
- 社団法人電子情報通信学会の論文
- 2003-08-01
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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OHNO Takanobu
Department of Electrical Engineering and Electronics, Aoyama Gakuin University
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Wada Kouji
Aoyama Gakuin University
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Ohno Takanobu
Department Of Electrical Engineering And Electronics 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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OHNO Takanobu
Aoyama Gakuin University
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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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Hashimoto Osamu
Department of Electrical and Electronic Engineering, Aoyama Gakuin University
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