Compact wideband bandpass filter

被引:42
作者
Mandal, MK [1 ]
Sanyal, S [1 ]
机构
[1] Indian Inst Technol, Dept Elect & Elect Commun Engn, Kharagpur, W Bengal, India
关键词
bandpass filter (BPF); microstrip; slot;
D O I
10.1109/LMWC.2005.860012
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
Designing wideband bandpass filter (BPF) with parallel-coupled microstrip lines requires tight coupling resulting in close separation between the lines and difficulty of fabrication. Here, it is shown that the etched slots in the ground plane of the parallel coupled lines can significantly increase the coupling. This technique has been extended to realize ultra-wideband BPFs having 3-dB fractional bandwidth greater than 100% and low insertion loss in the passband.
引用
收藏
页码:46 / 48
页数:3
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