A novel compact ultra-wideband (UWB) bandpass filter with triple-notched bands
A novel compact ultra-wideband (UWB) bandpass filter with triple-notched bands
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DOI：
10.1080/09205071.2015.1034811
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发表时间：
2015-04
影响因子：
1.3
通讯作者：
Xiaomin Shi;Xiaoli Xi;Yuchen Zhao;Hailong Yang
中科院分区：
文献类型：
--
作者：
Xiaomin Shi;Xiaoli Xi;Yuchen Zhao;Hailong Yang
本文提出了一种新型的紧凑型微带超宽带（UWB）带通滤波器，具有三个锐利陷波带和良好的选择性。三陷波带滤波效果是通过在馈线上增加开路存根和引入非对称双线耦合结构来实现的，提供了高度的调节自由度，而不增加滤波器尺寸。通过调整馈线结构参数，可以独立控制陷波带频率和上阻带传输零点。最后，模拟并制作了一个三陷波带微带超宽带滤波器。
A novel compact microstrip ultra-wideband (UWB) bandpass filter with three sharply notched bands and good selectivity is presented in this letter. Triple-notched bands filtering effects are achieved by adding open-circuited stubs and introducing asymmetric dual-line coupling structure to the feed lines, providing a high degree of adjusting freedom and not increasing the filter size. The frequencies of the notched bands and the upper stopband transmission zero can be independently controlled by adjusting the structural parameters of feed lines. Finally, a microstrip UWB filter with triple-notched bands is simulated and fabricated with good agreement.