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
收藏
页码：37 / 42
页数：6
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