由算例理解电磁场等效定理  

Understanding the Equivalence Theorem of Electromagnetic Field from Examples

作　　者：张明[1] 汤一铭 包扬[1] ZHANG Ming;TANG Yiming;BAO Yang(College of Electronic and Optical Engineering&College of Flexible Electronics,Nanjing University of Posts and Communications,Nanjing 210023,China)

机构地区：[1]南京邮电大学电子与光学工程学院、柔性电子学院,南京210023

出　　处：《电气电子教学学报》2023年第4期148-153,共6页Journal of Electrical and Electronic Education

基　　金：江苏省自然科学基金项目(BK20200757);南京邮电大学研究生教育教学改革课题(JGKT22-XYB11)。

摘　　要：通过一个特殊场景的电磁场问题,给出此电磁场问题的多种等效问题,详细说明了等效的过程。在此基础上,引出电磁场等效定理的一般形式,用两个电磁场散射问题说明一般形式的用法。对电磁场等效定理的深入讨论有助于学生在学习过程中完整理解等效定理并能正确地将其应用在电磁场问题的计算中。In this paper,several equivalence problem models for a special example of electromagnetic field are illustrated.The equivalence processes are discussed in detail.Furthermore,the general form of the electromagnetic field equivalence theorem is introduced.The usage of the general form is illustrated by two electromagnetic field scattering problems.A thorough discussion of the electromagnetic field equivalence theorem helps students to fully understand the theorem and correctly apply it to the computation of electromagnetic field.

关 键 词：等效定理 边界条件 唯一性定理 

分 类 号：G426[文化科学—课程与教学论]