A Broadband Rat-Race Ring Coupler with Tightly Coupled Lines(Devices/Circuits for Communications)
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概要
- 論文の詳細を見る
In this paper, we propose a broadband 3-dB rat-race ring coupler that uses tightly coupled lines. An aperture compensation technique that can simplify the fabrication of tightly coupled lines, is also discussed here. The effective bandwidth of the proposed rat-race coupler with a return loss better than -20 dB can be increased by 14.3%, in comparison with that of March's. Its isolation is always below -20 dB and the phase shift errors less than ±6°.
- 社団法人電子情報通信学会の論文
- 2005-10-01
著者
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Wang Kai
Department Of Electric And Electronic Engineering Graduate School Of Engineering Miyazaki University
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Wang Kai
Department Of Radio Science And Engineering Korea Maritime University
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Kang In-ho
Department Of Prosthodontics Graduate School Seoul National University
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Kang In-ho
Department Of Radio Science And Engineering Korea Maritime University
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Wang Kai
Department Of Biostatistics University Of Iowa
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