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
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.