The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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New Perfectly Matched Layer for Absorbing Evanescent Modes in FDTD

FDTD에서 감쇄 모드 흡수를 위한 새로운 Perfectly Matched Layer

  • 이재용 ((주) 벨웨이브) ;
  • 명노훈 (한국과학기술원 전자전산학과 전기 및 전자공학 전공)
  • Published : 2000.06.01
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Abstract

The existin Berenger's PML(Perfectly Matched Layer) cannot absorb evanescent modes effectively generated in waveguides or periodic array structures. Although some absorbing boundary conditons(ABC) were introduced to absorp the evanescent modes, they did not show sufficient performance or could not be applied easily because of their much difference from Berengers PML. In this paper, NPML(New PML) is introduced to absorb the evanescent modes by splitting the conductivity and permittivity profile of the Berengers PML. The proposed NPML is certified as an ABC having enough performance for evanescent and propagating modes by analyzing the global error and the reflectivity of a waveguide.

Keywords

References

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