Realization of UWB filter with sirs and parallel-coupled three lines by synthesis method

被引：5

作者：

Chen, Chun-Ping ^{[1
]}

Anada, Tetsuo ^{[1
]}

Ma, Zhewang ^{[2
]}

机构：

[1] Kanagawa Univ, Dept Elect Elect & Informat Engn, Yokohama, Kanagawa 2218686, Japan

[2] Saitama Univ, Dept Elect & Elect Syst, Saitama 3388570, Japan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 11期

关键词：

ultrawideband; synthesis; three lines; stepped-impedance resonators; BAND BANDPASS FILTER;

D O I：

10.1002/mop.27848

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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. (c) 2013 Wiley Periodicals, Inc.

引用

页码：2689 / 2692

页数：4

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