Localization of Radiation Integrals Using the Fresnel Zone Numbers

この論文にアクセスする

この論文をさがす

著者

抄録

Radiation integral areas are localized and reduced based upon the locality of scattering phenomena. In the high frequency, the scattering field is given by the currents, not the entire region, but on the local areas near the scattering centers, such as the stationary phase points and edge diffraction points, due to the cancelling effect of integrand in the radiation integral. The numerical calculation which this locality is implemented into has been proposed for 2-dimensional problems. The scattering field can be approximated by integrating the currents weighted by the adequate function in the local areas whose size and position are determined appropriately. Fresnel zone was previously introduced as the good criterion to determine the local areas, but the determination method was slightly different, depending on the type of scattering centers. The objective of this paper is to advance the Fresnel zone criteria in a 2-dimensional case to the next stage with enhanced generality and applicability. The Fresnel zone number is applied not directly to the actual surface but to the virtual one associated with the modified surface-normal vector satisfying the reflection law. At the same time, the argument in the weighting function is newly defined by the Fresnel zone number instead of the actual distance from the scattering centers. These two revisions bring about the following three advantages; the uniform treatment of various types scattering centers, the smallest area in the localization and applicability to 3-dimensional problems.

収録刊行物

  • IEICE transactions on electronics

    IEICE transactions on electronics 95(5), 928-935, 2012-05-01

    一般社団法人 電子情報通信学会

参考文献:  10件中 1-10件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10030941625
  • NII書誌ID(NCID)
    AA10826283
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168524
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
ページトップへ