Implementation of the huygens absorbing boundary condition in corner regions

Fumie Costen, Jean Pierre Bérenger

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    Abstract

    In recent years, three new absorbing boundary conditions (ABCs) have appeared in the literature, namely, the multiple absorbing surfaces, the reradiating boundary condition, and the Huygens ABC (HABC). The last is a generalization of the first two. The HABC mainly relies on the radiation of a field opposite to the outgoing field by means of surface currents. This paper focuses on the implementation of the HABC in the corner regions of computational domains. It is shown rigorously that the Huygens surface radiating the opposite field is not a normal Shelkunoff surface. Additional branches, called extensions, must be added in the corner regions. © 2012 IEEE.
    Original languageEnglish
    Article number6162977
    Pages (from-to)367-374
    Number of pages7
    JournalIEEE Transactions on Electromagnetic Compatibility
    Volume54
    Issue number2
    DOIs
    Publication statusPublished - Apr 2012

    Keywords

    • Absorbing boundary condition (ABC)
    • finite difference
    • finite-difference time-domain (FDTD) method
    • Huygens surface

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