Modeling the Electromagnetic Scattering from a Dielectrically Filled Groove Using the Method of Auziliary Sources
Scattering of electromagnetic waves from a 2D groove filled with a lossy dielectric in an infinite conducting plane is modeled using the method of auxiliary sources. The scattering structure contain two mediums (perfectly electric conductor and the lossy dielectric) considered as strongly coupled. According to the MAS, in order to approximate the electromagnetic fields in each domain,fictitious current sources verifying the Helmoltz equation in the considered domain are introduced and distributed around the physical boundary. Three bases of AS must be taken into account, the satisfaction of the respective boundary conditions between the dielectric, the PEC and the upper free space model the strong coupling affecting the structure. Therefore, the scattered field is the superposition of the scattered fields by the two mediums. The implementation code was realized with Mathematica, and the numerical results (RCS, near field) agree very well with references. The MAS in conjunction with the EM coupling model is able to analyze the scattering from finite gratings.
Naamen Hichem Taoufik Aguili
Département Technologie de linformation et de communications Ecole nationale dingénieurs de Tunis,Tunisia
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
858-860
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）