HO-SIE based Domain Decomposition Method for Solving Multiscale Em Scattering Problems

Abstract

In this paper, a novel non-overlapping and noncon-formal domain decomposition method (DDM) based on surface integral equation (SIE) is developed for the electromagnetic (EM) scattering analysis of multiscale PEC objects. In this work, by adopting an interior penalty term, a discontinuous Galerkin approach can be utilized to avoid the introduction of artificial touching faces between adjacent subdomains and avoid the introduction of stabilization term depending on the line integral over interactions of nonconformal meshes. To enhance the efficiency of modeling subdomains, higher order hierarchical vector (HOHV) basis functions defined on curved triangular patches are used in this SIE to reduce computational cost. Moreover, an additive non-overlapping DD preconditioner is also constructed for the fast iterative solution. Two numerical results are given to demonstrate the validity of this HO-SIE-DDM.

Meeting Name

2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2019 (2019: Jul. 18-19, Taiyuan, China)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Comments

This work is supported by National Science Foundation of China (No.61801406), and Longshan Talent Fund of Southwest University of Science and Technology (No.18lzx677).

Keywords and Phrases

Discontinuous Galerkin; Domain Decomposition Method (DDM); Higher Order Hierarchical Vector (HOHV) Basis Functions; Nonconformal; Surface Integral Equation (SIE).

International Standard Book Number (ISBN)

978-172811372-2

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jul 2019

Link to Full Text

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