用多极理论分析轴对称介质加载微波谐振腔(英文)  

Multipole theory analysis of axisymmetrically loaded cavities

作　　者：郑勤红[1] 谢雪冰[1] 钟汝能[1] 蔡武德[1] 

机构地区：[1]云南师范大学物理与电子信息学院,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2006年第6期38-42,共5页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(10365002);云南省自然科学基金资助项目(2004A0028M);云南省教委自然科学基金资助项目~~

摘　　要：从电磁场方程出发,推导出用多极理论计算轴对称介质加载微波谐振腔谐振频率的本征值方程,给出用多极理论分析轴对称介质加载微波谐振腔的基本原理和计算过程。三个工程实例的计算结果表明:用多极理论分析轴对称介质加载微波谐振腔,不仅具有较高的计算精度,而且可以很方便地应用于各类轴对称介质加载微波谐振腔对称模式本征值的分析与计算,多极理论是分析轴对称介质加载微波谐振腔谐振频率的一种有效方法。A new approach, the multipole theory（MT） method, is presented for determining the resonant frequencies in axisymmetrically loaded cavities. The inhomogeneous field domain of loaded cavity is decomposed as a combination of several simple homogeneous regions, and the solution of the governing partial differential equation is represented by the generalized MT formula. Representative computational examples, including spherical cavity loaded with an eccentric dielectric sphere, cylindrical cavity and rectangular cavity loaded with dielectric rods, are given to validate the theory and to demonstrate the degree of its efficiency.

关 键 词：多极理论 轴对称加载腔 非均匀场域 谐振频率 

分 类 号：TN01[电子电信—物理电子学] TN814