Compact UWB bandpass filter with triple notched bands using parallel U-shaped defected microstrip structure
Compact UWB bandpass filter with triple notched bands using parallel U-shaped defected microstrip structure
复制标题
使用平行 U 形缺陷微带结构的具有三陷波带的紧凑型 UWB 带通滤波器
DOI：
10.1049/el.2013.3077
复制
发表时间：
2014-01-16
影响因子：
1.1
通讯作者：
Li, Jia-Lin
中科院分区：
文献类型：
--
作者：
Wang, Jianpeng;Zhao, Junding;Li, Jia-Lin
提出了一种基于平行U形缺陷微带结构的三重锐陷带超宽带（UWB）带通滤波器。初始UWB BPF包括交指耦合线和E形多模谐振器，以在通带两侧实现两个传输零点，从而改善裙部选择性。然后，介绍了三个并联的UDMS，它们具有实现三重陷波特性和提供高度调节自由度的特性。为了验证设计理论，微带UWB带通滤波器与三个陷波带中心在5.2，5.8和8.0 GHz，分别设计和制造。仿真结果与实验结果吻合较好。
A novel compact ultra-wideband (UWB) bandpass filter (BPF) with triple sharply notched bands and good selectivity is proposed using a parallel U-shaped defected microstrip structure (UDMS). The initial UWB BPF comprises interdigital coupled lines and an E-shaped multiple-mode resonator to achieve two transmission zeros on both sides of the passband, thus improving skirt selectivity. Then, three parallel UDMSs are introduced, which have the properties of achieving the triple band-notched characteristics and providing a high degree of adjusting freedom. To validate the design theory, a microstrip UWB BPF with three notched bands centred at 5.2, 5.8 and 8.0 GHz, respectively, is designed and fabricated. Both the simulation and the experimental results are provided which have good agreement.