研究者情報 | 神奈川大学

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	日本語
発行・発表の年月	2010/06
形態種別	学術雑誌
査読	査読あり
標題	Synthesis of compact UWB bandpass filter with improved performances
執筆形態	共著
掲載誌名	Microwave and Optical Technology Letters
巻・号・頁	52(6),1268-1271頁
著者・共著者	C.-P. CHEN, H. Nihei, Z. MA and T. ANADA
概要	This paper presents a synthesis of ultra-wideband bandpass (UWB) filters consisting of two short-circuited stubs combined with two-stage of stepped impedance resonators (SIRs). The practical and theoretical transfer functions of the UWB filters are derived. An example filter is firstly theoretically-designed by the recently-proposed synthesis scheme, then optimized by EM simulator, fabricated in microstrip line and finally characterized by network analyzer. A good agreement between the theoretical and experimental results validates the synthesis procedure successfully. In addition, the results of the designed filter show that the characteristics of the filter is significantly improved compared with the filters composed of only two-stage of SIRs but without stubs. The designed filter also exhibits good characteristics of low insertion losses, quite sharp skirts, a flat group delay, deep attenuations in stopband (especially in lower one) and satisfies even FCC outdoor specifications. It should be note that the proposed filter prototype can be also used to realize a UWB filter with an FBW even greater than 110%.