Hybrid absorbing boundary conditions based on fast nonuniform grid integration for nonconvex scatterers

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Abstract

Novel hybrid (local-global) absorbing boundary conditions (ABCs) are proposed for the truncation of computational domains in finite-method analysis of open-region problems. The pertinent boundary integration is accelerated by the nonuniform grid-interpolation scheme, resulting in a fast algorithm for treating electrically large objects with largely concave outer boundaries.

Original languageEnglish
Pages (from-to)102-106
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume43
Issue number2
DOIs
StatePublished - 20 Oct 2004

Keywords

  • Absorbing boundary condition
  • Electromagnetic scattering
  • Fast methods
  • Global boundary condition
  • Kirchoff integral

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