Differential Wideband Bandpass Filter With High-Selectivity and Common-Mode Suppression

被引：45
|
作者：
Wu, Xiao-Hu [1 ,2 ]
Chu, Qing-Xin [1 ]
Qiu, Lei-Lei [1 ]
机构：
[1] S China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] East China Res Inst Elect Engn, Hefei 230031, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2013年 / 23卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Bandpass filter (BPF); bandstop filter (BSF); common-mode; differential-mode; selectivity; wideband;
D O I：
10.1109/LMWC.2013.2284787
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：
A circuit for differential wideband bandpass filter (BPF) is presented. The circuit works as a bandpass and band-stop filter under differential-and common-mode excitation, respectively. Under differential-mode, two transmission zeros are generated by the short-ended parallel-coupled stubs and supply a very sharp differential passband. The circuit parameters are analyzed and given to show the circuit characteristics. Finally, the circuit is implemented using microstrip technology and a differential wideband BPF is designed, simulated and measured. Simulated and measured results are well agreed.
引用
收藏
页码：644 / 646
页数：3
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