基于双SIR枝节加载的三模带通滤波器的设计  

The design of Triple-Mode Bandpass Filter Base on Two SIR Stubs

作　　者：赖晨[1] 饶凌欣 文品 任宝平[1] 彭阳[1] 王杉[1] 刘海文[1] Lai Chert Rao Lingxin Wen Pin Ren Baoping Peng Yang Wang Shan Liu Haiwen(School of Information, East China Jiao Tong University of China, Nanchang 330013)

机构地区：[1]华东交通大学信息工程学院,南昌330013

出　　处：《测控与通信》2016年第4期10-13,共4页

摘　　要：提出1种在SIR谐振器上采用2个开路SIR枝节加载实现的三模带通滤波器。2个SIR开路枝节加载在通带的上下边带分别产生了1个传输零点，2个传输零点都可通过控制SIR枝节的阻抗比单独可控，产生的2个零点改善了滤波器的频率选择性。设计并加工了l款中心频率为2．6GHZ的带通滤波器，通带覆盖了4G频段。仿真结果和理论分析吻合很好。In this paper, a triple-Mode bandpass filter based on SIR resonator with two SIR stubs loaded is proposed. The two SIR stubs create a transmission zero on either side of the passband, respectively. Both of the two transmission zeros can be controlled by change the impedance ratio of the SIR stubs. The transmission zeros can improve the selectively of the filter. A bandpass filter with center frequency at 2.6 GHZ is designed and fabricated in this paper. The passband covers the 4 G band. The Simulated results are given and show a good agreement with the theoretical analysis.

关 键 词：三模带通滤波器 SIR枝节加载 传输零点单独可控 

分 类 号：TN713.5[电子电信—电路与系统]