带线三角结环行器的小型化研究  

Research on Miniaturization of Stripline Junction Circulator with Planar Triangular Resonator

作　　者：谢玉铭[1] 贾建华[1] 

机构地区：[1]同济大学电子与信息工程学院,上海201804

出　　处：《磁性材料及器件》2008年第6期47-49,64,共4页Journal of Magnetic Materials and Devices

摘　　要：带线结环行器的小型化是当今微波铁氧体器件的研究热点之一。本文研究对象为带线三角结环行器,其正、负旋转本征模式的截止数kA决定了环行器的尺寸大小。通过有限元分析方法,研究了kA值与三角结中心谐振导体形状的关系。提出了对三角结中心谐振导体开槽的方法,来减小三角结中心导体的边长尺寸,从而实现环行器的小型化。实验仿真表明该方法在实现带线三角结环行器小型化的同时,使其性能完全满足GSM基站对于环行器的指标要求。The miniaturization of stripline junction circulator is always a hot subject of research in the area of microwave ferrite devices. As for the circulator using triangular resonators, the cutoff number kA of the counter-rotating eigen modes determines the size of the junction circulator. The finite element method is used to analyze the relationship between kA and the shape of triangular center conductor. A method is proposed to reduce the size of the junction circulator using triangular resonator symmetrically loaded with magnetic ridges. The computer simulation verifies that the method can reduce the size of the junction circulator with triangular resonator and meet with the performance requirement of GSM base-station.

关 键 词：结环行器 三角结 小型化 有限元分析法 

分 类 号：TN621[电子电信—电路与系统]