Research on the Electromagnetic Scattering Near the Field

作     者：Xia Ying-qing Yang He-lin Xu Peng-gen Liu wu 

作者机构：Department of PhysicsCentral China Normal UniversityWuhan 430079China School of Electronic InformationWuhan UniversityWuhan 430072China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报(自然科学英文版))

年 卷 期：2002年第7卷第2期

页      面：182-184页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：electromagnetic scattering vector scattering function method of picture elements 

摘      要：We calculate and analyze the scattering near the field from some simple and complex targets using the method of picture elements (PEL), based upon the method of high-frequency approximation. It introduces the critical distance of the near field and the far field which is related with the dimension of the target. The problem of the EMS near field from large size objects can be transformed to the problem of the far field by parting it to many very small size elements. By calculating the EMS near fields of some simple and complex targets based on the SCTE (scattering from complex targets and environments) system, the results show that there are much difference between the near field and the far field. And the characteristics of the near field are more complicated. This work has practical engineering value in the area of the electromagnetic compatibility (EMC), electromagnetic interference (EMI) prediction and electromagnetic scattering (EMS).