TY - JOUR
T1 - A novel dual-field time-domain finite-element domain-decomposition method for computational electromagnetics
AU - Lou, Zheng
AU - Jin, Jian Ming
N1 - Funding Information:
Manuscript received November 9, 2005; revised February 10, 2006. This work was supported by a grant from the Air Force Office of Scientific Research via the MURI Program under Contract FA9550-04-1-0326. The authors are with the Center for Computational Electromagnetics, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2991 USA (e-mail: [email protected]). Digital Object Identifier 10.1109/TAP.2006.875922
PY - 2006/6
Y1 - 2006/6
N2 - A novel dual-field time-domain finite-element domain-decomposition method is presented for numerical simulation of electromagnetic phenomena. The method divides the computation domain into several non-overlapping subdomains and computes both the electric and magnetic fields in each subdomain by solving second-order vector wave equations. A leapfrog-like scheme is employed in the time marching to update the alternating electric and magnetic fields. Adjacent subdomains are related to each other by the equivalent surface currents on the subdomain interfaces, which are also updated in a similar fashion. The method requires minimum communications between the subdomains, thus, is highly suitable for parallel computations. The proposed domain decomposition method is particularly attractive for the numerical simulation of finite arrays and large-scale electromagnetic problems. Numerical stability and dispersion error analyses are conducted and several radiation examples are presented to demonstrate the accuracy and efficiency of the method.
AB - A novel dual-field time-domain finite-element domain-decomposition method is presented for numerical simulation of electromagnetic phenomena. The method divides the computation domain into several non-overlapping subdomains and computes both the electric and magnetic fields in each subdomain by solving second-order vector wave equations. A leapfrog-like scheme is employed in the time marching to update the alternating electric and magnetic fields. Adjacent subdomains are related to each other by the equivalent surface currents on the subdomain interfaces, which are also updated in a similar fashion. The method requires minimum communications between the subdomains, thus, is highly suitable for parallel computations. The proposed domain decomposition method is particularly attractive for the numerical simulation of finite arrays and large-scale electromagnetic problems. Numerical stability and dispersion error analyses are conducted and several radiation examples are presented to demonstrate the accuracy and efficiency of the method.
KW - Domain decomposition (DD)
KW - Finite-element method (FEM)
KW - Radiation analysis
KW - Time-domain simulation
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U2 - 10.1109/TAP.2006.875922
DO - 10.1109/TAP.2006.875922
M3 - Article
AN - SCOPUS:33745204215
SN - 0018-926X
VL - 54
SP - 1850
EP - 1862
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 6
ER -