Band-notched Ultra-Wideband Bandpass Filter Using Dual-Mode Resonator Loaded Slotline

被引：1

作者：

Guan, Xuehui ^{[1
]}

Xiong, Tao ^{[1
]}

Yang, Fangqi ^{[1
]}

Wen, Pin ^{[1
]}

Liu, Haiwen ^{[1
]}

机构：

[1] East China Jiaotong Univ, Sch Informat Engn, Nanchang 330013, Jiangxi, Peoples R China

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2014年 / 46卷

基金：

中国国家自然科学基金;

关键词：

D O I：

10.2528/PIERL14032401

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：

In this article, a novel band-notched ultra-wideband (UWB) bandpass filter based on hybrid microstrip/slotline structure is proposed. A quad-mode stubs-loaded slotline resonator is fed by two orthogonal microstrip lines and ultra-wideband bandpass characteristic is excited. A stub-loaded dual mode microstrip resonator is externally loaded to the quad-mode slotline resonator, and a notched band with sharp roll-off characteristic is achieved. The circuit model for the dual-mode microstrip resonator loaded slotline is given and analyzed. The proposed filter is designed and fabricated. Simulated and measured return losses are -12dB/-18dB and -18dB/-10dB in lower and higher passband. The return loss in the notched band is greater than 15 dB.

引用

页码：37 / 42

页数：6

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