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Title: A dual-field domain-decomposition method for the time-domain finite-element analysis of large finite arrays

Abstract

A novel dual-field time-domain finite-element domain-decomposition method is presented for an efficient and broadband numerical simulation of electromagnetic properties of large finite arrays. Instead of treating the entire array as a single computation domain, the method considers each array element as a smaller subdomain and computes both the electric and magnetic fields inside each subdomain. Adjacent subdomains are related to each other by the equivalent surface currents on the subdomain interfaces in an explicit manner. Furthermore, the method exploits the identical geometry of the array elements and further reduces the memory requirement and CPU time. The proposed method is highly efficient for the simulation of large finite arrays. Numerical stability and computational performance of the method are discussed. Several radiation examples are presented to demonstrate the accuracy and efficiency of the method.

Authors:
 [1];  [2]
  1. Center for Computational Electromagnetics, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2991 (United States)
  2. Center for Computational Electromagnetics, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2991 (United States). E-mail: j-jin1@uiuc.edu
Publication Date:
OSTI Identifier:
20991564
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Computational Physics; Journal Volume: 222; Journal Issue: 1; Other Information: DOI: 10.1016/j.jcp.2006.07.024; PII: S0021-9991(06)00359-7; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCURACY; COMPUTERIZED SIMULATION; FINITE ELEMENT METHOD; GEOMETRY; MAGNETIC FIELDS; PERFORMANCE; STABILITY

Citation Formats

Lou, Zheng, and Jin, Jian-Ming. A dual-field domain-decomposition method for the time-domain finite-element analysis of large finite arrays. United States: N. p., 2007. Web. doi:10.1016/j.jcp.2006.07.024.
Lou, Zheng, & Jin, Jian-Ming. A dual-field domain-decomposition method for the time-domain finite-element analysis of large finite arrays. United States. doi:10.1016/j.jcp.2006.07.024.
Lou, Zheng, and Jin, Jian-Ming. Thu . "A dual-field domain-decomposition method for the time-domain finite-element analysis of large finite arrays". United States. doi:10.1016/j.jcp.2006.07.024.
@article{osti_20991564,
title = {A dual-field domain-decomposition method for the time-domain finite-element analysis of large finite arrays},
author = {Lou, Zheng and Jin, Jian-Ming},
abstractNote = {A novel dual-field time-domain finite-element domain-decomposition method is presented for an efficient and broadband numerical simulation of electromagnetic properties of large finite arrays. Instead of treating the entire array as a single computation domain, the method considers each array element as a smaller subdomain and computes both the electric and magnetic fields inside each subdomain. Adjacent subdomains are related to each other by the equivalent surface currents on the subdomain interfaces in an explicit manner. Furthermore, the method exploits the identical geometry of the array elements and further reduces the memory requirement and CPU time. The proposed method is highly efficient for the simulation of large finite arrays. Numerical stability and computational performance of the method are discussed. Several radiation examples are presented to demonstrate the accuracy and efficiency of the method.},
doi = {10.1016/j.jcp.2006.07.024},
journal = {Journal of Computational Physics},
number = 1,
volume = 222,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}