基于方形环枝节加载双模谐振器的双频带通滤波器的设计  

Research on Dual-band Bandpass Filter Based on Square Ring Stub-Loaded Dual-Mode Resonator

作　　者：彭阳[1] 文品 任宝平[1] 刘建伟[1] 赖晨[1] 徐贻辰 饶凌欣 刘海文[1] Peng Yang Wen Pin Ren Baoping Liu Jianwei Lai Chen Xu Yiehen Rao Lingxin Liu Haiwen(School of Information, East china of JiaoTong University, 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4-6,18,共4页

摘　　要：提出了1种由方形环枝节加载谐振器和源负载耦合馈线组成的具有双通带特性的紧凑型滤波器。这种方形环枝节加载的双模谐振器用来产生第1个通带，在此基础上馈线结构实现第2个通带的设计。另外源负载耦合用来产生多个传输零点来提高通带的选择性。此双频带通滤波器工作在全球微波互联接入频段2．6GHz和3．6GHz，该滤波器不仅尺寸小、性能良好，而且带外抑制也较好。In this paper, a compact dual-band bandpass filter （BPF） with source load coupling feedlines using square ring stub-loaded resonator has been presented. The introduced resonator is used to generate the first passband, and the feedlines are applied to generate the second passband for BPF design. In addition, multiple transmission zeros are generated by using source-load coupling structure to enchance selectivity of passband. The bands of the designed dual-band BPF operated at 2.6 GHz and 3.6 GHz for Worldwide Interoperability for Microwave Access （WiMax） band was designed. The proposed structure achieved compact size, good filter performance and good out-of-band rejection.

关 键 词：双模谐振器 枝节加载 源负载耦合 带通滤波器 全球微波互联接入 

分 类 号：TN713.5[电子电信—电路与系统]