Design of a Compact UWB Filter With High Selectivity and Superwide Stopband
Design of a Compact UWB Filter With High Selectivity and Superwide Stopband
复制标题
具有高选择性和超宽阻带的紧凑型UWB滤波器的设计
DOI：
10.1109/lmwc.2017.2711509
复制
发表时间：
2017-07-01
影响因子：
3
通讯作者：
Wu, Wen
中科院分区：
文献类型：
--
作者：
Zhou, Chun-Xia;Guo, Pei-Pei;Wu, Wen
本文提出了一种具有高选择性和超宽阻带的紧凑型超宽带带通滤波器的设计。基于半模基片集成波导（HMSIW）结构的多模谐振器（MMR）的三个谐振模式和一对电磁带隙加载平行耦合线的四个谐振模式可以构成宽带性能。该滤波器可以实现超宽阻带，并在通带两侧实现两个传输零点，以提高滤波器的选择性。一个原型的BPF工作频率为3.1至10.4 GHz的一个非常宽的阻带区域从10.7至24 GHz和15 dB的抑制水平被证明在测量结果。
This letter presents a design of compact ultra-wideband bandpass filter (BPF) with high selectivity and superwide stopband. Three resonant modes from the multiple-mode resonator (MMR) based on half-mode substrate integrated waveguide (HMSIW) structure and four resonant modes from a pair of electromagnetic bandgap loaded parallel-coupled lines can constitute a wideband performance. Superwide stopband can be achieved and two transmission zeros are realized on both sides of the passband to improve the filter selectivity. A prototype of the BPF operating from 3.1 to 10.4 GHz with an extremely broad stopband region from 10.7 to 24 GHz and a rejection level of 15 dB is demonstrated in the measured results.