An ultrawideband bandpass filter with steeply sloped rejection using stub-loaded resonator

被引：3

作者：

Xu, Jin ^{[1
,2
]}

Hua, Changzhou ^{[1
]}

Li, Bo ^{[1
]}

Wang, Hui ^{[1
]}

Miao, Chen ^{[1
]}

Wu, Wen ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Ministerial Key Lab JGMT, Nanjing, Jiangsu, Peoples R China

[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing, Jiangsu, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2012年 / 54卷 / 02期

关键词：

stub-loaded resonator; multimode resonator; UWB; bandpass filter; MODE RESONATOR;

D O I：

10.1002/mop.26538

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 with steeply sloped rejection is proposed in this article. The proposed filter has five transmission poles inside the passband and four transmission zeros on both side of passband. Using the even- and odd-mode analysis method, closed-form formulas for the position of poles and zeros are given. Finally, a UWB bandpass filter is fabricated and measured. The simulation and measurement agree well with each other. Furthermore, due to the two tunable transmission zeros very close to the filter passband, the fabricated filter has 136- and 72-dB/GHz slopes in the lower and upper transition band. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 54:326-329, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26538

引用

页码：326 / 329

页数：4

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