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Content Provider | IET Digital Library |
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Author | Zhang, Zhipeng Cai, Qiangming Zhao, Yanwen Gu, Li Wu, Lifeng Huang, Weifeng Nie, Zaiping |
Abstract | This article presents a higher order method of moments (MoM) solution of the volume electric field integral equation (VEFIE) to model the electromagnetic (EM) scattering from anisotropic dielectric objects with arbitrary shape and inhomogeneity. This higher order solution is based on the higher order current modelling and higher order geometric modelling. Namely, the unknown electric flux density vector is discretised by the higher order hierarchical vector (HOHV) basis functions, and the geometric structure is discretised by the curved tetrahedral elements. Both kinds of higher order discretisation can reduce the number of mesh elements and the associated unknowns significantly. When the solution accuracy is on a comparable level, authors’ higher order VIE demands much less memory and CPU time than the conventional low-order volume integral (VIE). Moreover, authors’ scheme accommodates the non-conformal discretisation, because no divergence operator is imposed on the vectorial unknown. Numerical results are provided to demonstrate the accuracy, efficiency, and flexibility of the proposed approach. |
Starting Page | 1338 |
Ending Page | 1344 |
Page Count | 7 |
ISSN | 17518725 |
Volume Number | 13 |
e-ISSN | 17518733 |
Issue Number | Issue 9, Jul (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/13/9 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5672 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2019-03-27 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Anisotropic Dielectric Objects Arbitrary Shape Conventional Low-order Volume Integral Curved Tetrahedral Element Electric Field Integral Equation Electromagnetic Scattering Electromagnetic Wave Electromagnetic Wave Scattering EM Scattering Geometric Structure Higher Order Current Modelling Higher Order Discretisation Higher Order Geometric Modelling Higher Order Hierarchical Vector Basis Function Higher Order Method of Moment Solution Higher Order Solution Higher Order VIE Method Inhomogeneity Mesh Element Number Method of Moments Nonconformal Discretisation Solution Accuracy Unknown Electric Flux Density Vector Volume Electric Field Integral Equation |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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