EMC混响室电磁场模态研究  

Analysis of electromagnetic mode-states in an EMC reverberation chamber

作　　者：丁坚进[1] 沙斐[1] 

机构地区：[1]北京交通大学电磁兼容研究室,北京100044

出　　处：《电波科学学报》2005年第5期557-560,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(50377001);北京交通大学校基金(DXJ030037)

摘　　要：混响室谐振腔激励的三维电磁场的推导一般采用并矢格林函数的方法,物理意义不太明显。用本征函数迭加的方法推导混响室有源激励的电磁场分布公式,有利于正确建立混响室电磁结构模型,树立正确的物理概念。并根据公式及其推导过程,分析了混响室EMC电磁工作机理,以此将EMC混响室电磁工作状态按模式状况进行了系统地分类,为混响室研究设计提供理论指导。The physical meaning of active electromagnetic fields in cavities deduced by dyadic Green function is usually not obvious. In this paper, the eigenfunction addition method is employed to solve electromagnetic fields in an EMC reverberation chamber, and the field structure is built and a clear physical concept is obtained. From the analysis, the electromagnetic operating states in the reverberation chamber are classified systematically on the basis of the mode state. The method presented can be served as theory guidance for the study and design of reverberation chamber.

关 键 词：混响室 谐振腔 模状态 本征函数 

分 类 号：O441.5[理学—电磁学]