Volume Integral Equation With Higher Order Hierarchical Basis Functions for Analysis of Dielectric Electromagnetic Scattering

Autor:	Qiang-Ming Cai, Yu-Teng Zheng, Miao-miao Jia, Zaiping Nie, Yanwen Zhao, Zhiqin Zhao
Rok vydání:	2015
Předmět:	Curvilinear coordinates Polarization density Mathematical analysis Charge density Basis function Solid modeling Electrical and Electronic Engineering Method of moments (statistics) Electric-field integral equation Integral equation Mathematics
Zdroj:	IEEE Transactions on Antennas and Propagation. 63:4964-4975
ISSN:	1558-2221 0018-926X
DOI:	10.1109/tap.2015.2481925
Popis:	An efficient method of moments (MoM) solution of volume electric field integral equation (V-EFIE) with a kind of higher order basis functions is presented to model scattering from a dielectric object with arbitrary shapes and inhomogenuity. This method is based on both higher order geometrical modeling and higher order current modeling, which is realized using a family of higher order hierarchical vector (HHOV) basis functions to expand the equivalent volume electric currents within curvilinear volume elements. This higher order scheme of MoM results in a significant reduction in meshing density and number of unknowns, leading to a remarkable reduction of memory and CPU time in comparison with conventional low-order MoM, while the accuracy of the solution remains at a comparable level. Numerical results agree with analytical solutions or with simulation results obtained by commercial software, demonstrating the accuracy, convergence, efficiency, flexibility, and adaptability of the new approach.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb5ce7fb594af97f3504928b0158cf9c https://doi.org/10.1109/tap.2015.2481925 Zobrazit plný text záznamu