基于枝节加载的新型三通带带通滤波器  

A Novel Triple-band Bandpass Filters Based on Stub-loaded Resonator

作　　者：饶凌欣 赖晨[1] 文品 任宝平[1] 彭阳[1] 刘海文[1] Rao Lingxin Lai Chen Wen Pin Ren Baoping Peng Yang Liu Haiwen(School of Information Engineering, East China 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1-3,13,共4页

摘　　要：提出1种新型枝节加载三模谐振器，谐振器利用加载非对称Y型枝节形成三模频率特性。该谐振器可通过调节非对称Y枝节的电长度实现模式位置的单独可控。三模谐振器的第1、3模式由Y型枝节形成，第2个模式由枝节加载的基模产生。为验证所提出的设计方法的正确性，在0．8mm厚的PCB介质板上加工了中心频带为2．08GHz、2．42GHz和3．04GHz的三通带带通滤波器，仿真结果、理论分析与实测结果良好吻合。A novel Triple-mode resonator using asymmetric Y side stub-loaded resonator is proposed in this paper： The modes of the resonator can be independently controlled by adjusting the electrical length of asymmetric Y side stub-loaded. The first and the third mode can be controlled by Y side stub-loaded, and the second mode can be controlled by basic microstrip line. A tri-band filter with three center frequencies at 2.08 GHz, 2.42 GHz and 3.04 GHz is designed and fabricated on 0.8-mm substrate. The Simulated results are given and show a good agreement with the theoretical analysis.

关 键 词：枝节加载 三模谐振器 三通带 带通滤波器 

分 类 号：TN713.5[电子电信—电路与系统]