Wideband Tri-band Filter Design using Stepped-impedance Stub Resonators
Wideband Tri-band Filter Design using Stepped-impedance Stub Resonators
复制标题
使用步进阻抗短截线谐振器的宽带三频滤波器设计
DOI：
10.14257/ijhit.2013.6.5.23
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Jin Wang
中科院分区：
文献类型：
--
作者：
Meng;Yun Liu;Shengjun Xue;Jin Wang
这封信提出了一种宽带三通带滤波器，其中三部分阶梯式阻抗并联短截线用作三模谐振器，通过传输线连接。这些滤波器由四分之一波长短截线滤波器的拓扑开发而来，与许多其他已发布的设计相比，具有更宽的通带。阶梯式阻抗短截线还有助于通带之间的传输零点，从而提高隔离度。通过优化方法设计了通带位于0.6-1、1.5-1.8和2.2-2.4 GHz的原型滤波器。仿真与测量结果在低插入损耗和高隔离度方面表现出良好的一致性。
This letter presents a wideband tri-passband filter in which tri-section stepped-impedance shunt-stubs are used as tri-mode resonators, connected by transmission lines. Developed from the topology of quarter-wavelength stub filters, these filters have much wider passbands compared to many other designs published. The stepped-impedance stubs also contribute transmission zeros between the passbands, thus increasing the isolation. A prototype filter with passbands located at 0.6-1, 1.5-1.8 and 2.2-2.4 GHz is designed by an optimization method. Good agreement between simulation and measurements in respect of low insertion loss and high isolation is demonstrated.
DOI：
10.1109/tmtt.2008.2002228
发表时间：
2008-08
影响因子：
4.3
作者：
Z. Hao;Jiasheng Hong
通讯作者：
Z. Hao;Jiasheng Hong