基于枝节加载环形谐振器的双频滤波器设计  

A Dual-band Bandpass Filter Based on Stub-loaded Ring Resonator

作　　者：赵芳丽 翁敏航 李同彬 Zhao Fangli;Weng Minhang;Li Tongbin(School of Information Engineering,Putian University,Putian 351100,China)

机构地区：[1]莆田学院信息工程学院,福建莆田351100

出　　处：《宁夏大学学报（自然科学版）》2020年第4期375-378,共4页Journal of Ningxia University(Natural Science Edition)

基　　金：福建省教育厅(科技类)科研项目(JT180484);福建省自然科学基金资助项目(2016J01759)。

摘　　要：利用枝节加载的双模环形谐振器,设计了一款双频带带通滤波器.分析了枝节加载的环形谐振器的通带特性.通过控制两对加载枝节的长度,分别将两个通带的中心频率调节在2.4 GHz和3.6 GHz.另外,在第一个通带两边得到两个传输零点,从而实现高选择性.设计的滤波器主要应用在WLAN和5G领域中.A dual band bandpass filter is designed by using the dual-mode ring resonator loaded with branches.The characteristics of the ring resonator loaded with branches are analyzed.Center frequencies of the two passbands are adjusted at 2.4 GHz and 3.6 GHz respectively by controlling the length of two pairs of loaded branches.In addition,two transmission zeros are obtained on both sides of the first passband to achieve high selectivity.The designed filter is applied in the fields of WLAN and 5G.

关 键 词：带通滤波器 双频带 双模态 枝节加载 

分 类 号：TN713[电子电信—电路与系统]