The Spherical Harmonics Expansion-Based Multilevel Fast Multipole Algorithm for Inhomogeneous Bi-anisotropic Objects

被引：0
|
作者：
Luo, Limei [1 ]
Liu, Jinbo [1 ]
Li, Zengrui [1 ]
Song, Jiming [2 ]
机构：
[1] Commun Univ China, Sch Informat & Commun Engn, Beijing 100024, Peoples R China
[2] Iowa State Univ, Elect & Comp Engn, Ames, IA 50011 USA
来源：
2019 INTERNATIONAL APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY SYMPOSIUM - CHINA (ACES), VOL 1 | 2019年
基金：
中国国家自然科学基金;
关键词：
Bi-anisotropy; method of moments (MoM); multilevel fast multipole algorithm (MLFMA); volume integral equation (VIE); SCATTERING;
D O I：
10.23919/aces48530.2019.9060549
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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. 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 low memory requirement as well as without compromising accuracy. The memory requirement of the radiation patterns of basis functions in the proposed MLFMA is several times less than that in the conventional MLFMA.
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页数：2
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