小型介质双工器及其同轴谐振器中心孔偏差问题的研究  

A KIND OF MINIATURE DUPLEXER AND A STUDY OF DIELECTRIC COAXIAL RESONATOR WITH CONCENTRICIRTY ERROR OF INNER/OUTER SURFACE

作　　者：叶秉堃[1] 韩淑坤 

机构地区：[1]华北电力学院北京研究生部

出　　处：《华北电力学院学报》1994年第1期34-40,共7页

摘　　要：设计了一种小型介质双工器。它由高介电常数陶瓷介质同轴谐振器组成，其优点是体积小，成本低，各项性能指标优良，可用作４５０ＭＨｚ频段移动通信收发信机的天线双工器。本文同时用最小二乘边界余数法计算了介质同轴谐振器中心孔偏差问题，可对加工陶瓷介质谐振器工艺过程中的误差范围及各参数值的修正提供依据。In the papers, a kind of miniature duplexer based on the principles of Chebisheff bandstop filter is designed and. tested. The duplexer has two bandstop filters composed of ceramic resonators with high dielectric coefficient, and it has the advantages of small size,low cost and very good performances. It can nsed in 450MHz mobile radio transceiver as antenna duplexer mainly. In addition, the impedance characterictics and the corresponding value of the coaxial. rmonatr with conCentridty error of illner/outer surface is computed by MBR method. These results is computed by LSBR method. These results plovide the limit of tolerablerange of the concentricity error for the manufacture basis of how to nodigy drdrit parameters for the designer, when concentricity error is present.

关 键 词：双工器 同轴谐振器 滤波器 

分 类 号：TN815[电子电信—信息与通信工程]