Campus Units
Electrical and Computer Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
9-13-2019
Journal or Book Title
IEEE Access
Volume
7
First Page
135780
Last Page
135789
DOI
10.1109/ACCESS.2019.2941257
Abstract
A volume integral equation (VIE) based on the mixed-potential representation is presented to analyze the electromagnetic scattering from objects involving inhomogeneous bi-anisotropic materials. By discretizing the objects using tetrahedrons on which the commonly used Schaubert-Wilton-Glisson (SWG) basis functions are defined, the matrix equation is derived using the method of moments (MoM) combined with the Galerkin’s testing. Further, adopting an integral strategy of tetrahedron-to-tetrahedron scheme, the multilevel fast multipole algorithm (MLFMA) is proposed to accelerate the iterative solution, which is further improved by using the spherical harmonics expansion with a faster implementation and low memory requirement. The memory requirement of the radiation patterns of basis functions in the proposed MLFMA is several times less than that in the conventional MLFMA.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Owner
The Authors
Copyright Date
2019
Language
en
File Format
application/pdf
Recommended Citation
Liu, Jinbo; Li, Zengrui; Luo, Limei; and Song, Jiming, "An Efficient Multilevel Fast Multipole Algorithm to Solve Volume Integral Equation for Arbitrary Inhomogeneous Bi-Anisotropic Objects" (2019). Electrical and Computer Engineering Publications. 230.
https://lib.dr.iastate.edu/ece_pubs/230
Comments
This article is published as Liu, Jinbo, Zengrui Li, Limei Luo, and Jiming Song. "An Efficient Multilevel Fast Multipole Algorithm to Solve Volume Integral Equation for Arbitrary Inhomogeneous Bi-Anisotropic Objects." IEEE Access 7 (2019): 135780-135789. DOI: 10.1109/ACCESS.2019.2941257. Posted with permission.