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

Zheng Lou, Jian Ming Jin

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)408-427
Number of pages20
JournalJournal of Computational Physics
Volume222
Issue number1
DOIs
StatePublished - Mar 1 2007

Keywords

  • Domain decomposition
  • Finite arrays
  • Finite-element method
  • Time-domain simulation

ASJC Scopus subject areas

  • Numerical Analysis
  • Modeling and Simulation
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Mathematics
  • Applied Mathematics

Fingerprint Dive into the research topics of 'A dual-field domain-decomposition method for the time-domain finite-element analysis of large finite arrays'. Together they form a unique fingerprint.

  • Cite this