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チン シュンペイ
Chen Chunping 陳 春平 所属 神奈川大学 工学部 電気電子情報工学科 神奈川大学大学院 工学研究科 工学専攻(電気電子情報工学領域) 職種 准教授 |
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言語種別 | 英語 |
発行・発表の年月 | 2013/08 |
形態種別 | 学術雑誌 |
査読 | 査読あり |
標題 | Realization of UWB Filter with SIRs and Parallel-Coupled Three Lines by Synthesis Method |
執筆形態 | 共著 |
掲載誌名 | Microwave and Optical Technology Letters, John Wiley |
巻・号・頁 | Vol. 55(Issue 11),pp.2689-2692 |
著者・共著者 | Chun-Ping Chen, Tetsuo Anada and Zhewang Ma, |
概要 | An ultrawideband (UWB) bandpass filter consisting of stepped-impedance resonators cascaded by parallel-coupled two-line and three-line structures is designed to satisfy Federal Communications Commission's spectrum mask. First, a simpler equivalent circuit for the parallel-coupled three lines is derived based on the transmission line theory. Then, after the derivation of the Chebyshev-type transfer function, the filter's characteristic equation relating the circuit parameters to the frequency responses is derived mathematically. Accordingly, a UWB filter with a fractional bandwidth up to 110% is synthesized. The designed filter is then simulated and fabricated. The measured results agree well with the predicted ones, which validates the effectiveness of our new models and the corresponding synthesis theory. |