Electromagnetic scattering analysis using nonconformal meshes and monopolar curl-conforming basis functions. (April 2016)

• Record Type: Journal Article
• Authors: Zhang, Liming; Deng, Ali; Zhang, Yiqing; Meng, Xianzhu; Lv, Zengtao
• Is Part Of: Engineering analysis with boundary elements. Volume 65(2016:Apr.)
• Page Start: 47
• Page End: 54
• Publication Date: 2016-04
• Subjects: Electromagnetic scattering -- Integral equation -- Method of moments -- Nonconformal meshes; Boundary element methods -- Periodicals; Engineering mathematics -- Periodicals; Équations intégrales de frontière, Méthodes des -- Périodiques; Mathématiques de l'ingénieur -- Périodiques; Boundary element methods; Engineering mathematics; Periodicals; 620.00151
• DOI: 10.1016/j.enganabound.2015.12.019
• Languages: English
• ISSNs: 0955-7997

Abstract

Abstract: A scheme for electromagnetic scattering analysis of perfect electric conducting (PEC) objects using nonconformal meshes is developed in this paper. The difference of the integral operators for the electric field integral equation (EFIE) and the magnetic field integral equation (MFIE) are analyzed in detail. It is shown theoretically that basis functions used to expand the surface currents for the MFIE may not necessarily be divergence-conforming. The nonconformal meshes and monopolar n × RWG basis functions are used together to solve the MFIE. Details for the implementation of the proposed method are presented. The method is verified through the numerical results for electromagnetic scattering analysis from several PEC objects. It is shown that this method is a suitable choice for using nonconformal meshes when solving electromagnetic scattering problems with the MFIE.