Acceleration of Augmented EFIE Using Multilevel Complex Source Beam Method
Joint Authors
Hu, Jun
Jiang, Ming
Chen, Yongpin
Song, Lianning
Nie, Zaiping
Source
International Journal of Antennas and Propagation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-13
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The computation of the augmented electric field integral equation (A-EFIE) is accelerated by using the multilevel complex source beam (MLCSB) method.
As an effective solution of the low-frequency problem, A-EFIE includes both current and charge as unknowns to avoid the imbalance between the vector potentials and the scalar potentials in the conventional EFIE.
However, dense impedance submatrices are involved in the A-EFIE system, and the computational cost becomes extremely high for problems with a large number of unknowns.
As an exact solution to Maxwell’s equations, the complex source beam (CSB) method can be well tailored for A-EFIE to accelerate the matrix-vector products in an iterative solver.
Different from the commonly used multilevel fast multipole algorithm (MLFMA), the CSB method is free from the problem of low-frequency breakdown.
In our implementation, the expansion operators of CSB are first derived for the vector potentials and the scalar potentials.
Consequently, the aggregation and disaggregation operators are introduced to form a multilevel algorithm to reduce the computational complexity.
The accuracy and efficiency of the proposed method are discussed in detail through a variety of numerical examples.
It is observed that the numerical error of the MLCSB-AEFIE keeps constant for a broad frequency range, indicating the good stability and scalability of the proposed method.
American Psychological Association (APA)
Song, Lianning& Chen, Yongpin& Jiang, Ming& Hu, Jun& Nie, Zaiping. 2017. Acceleration of Augmented EFIE Using Multilevel Complex Source Beam Method. International Journal of Antennas and Propagation،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1159422
Modern Language Association (MLA)
Song, Lianning…[et al.]. Acceleration of Augmented EFIE Using Multilevel Complex Source Beam Method. International Journal of Antennas and Propagation No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1159422
American Medical Association (AMA)
Song, Lianning& Chen, Yongpin& Jiang, Ming& Hu, Jun& Nie, Zaiping. Acceleration of Augmented EFIE Using Multilevel Complex Source Beam Method. International Journal of Antennas and Propagation. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1159422
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1159422