書誌事項
- タイトル別名
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- A Study of Uniform Approximation of Plane Gratings with Periodic Surface Resistance
- シュウキテキ テイコウ ブンプ オ モツ ヘイバン ゴウシ ノ イチヨウ キンジシキ ニ カンスル ケントウ
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抄録
Surface-relief and index modulated dielectric gratings can be approximated by uniform equivalent permittivity when the periodicity is very small compared with a wavelength. In plane gratings, equivalent anisotropic effects of surface resistance will also appear when the periodicity is very small. In this paper, a versatile uniform approximation of equivalent resistance is proposed in the three-dimensional electromagnetic scattering problem of plane gratings with periodic surface resistance illuminated by linearly and circularly polarized incidence. Scattering properties are obtained by the equivalent resistance from our proposed uniform approximation. Scattering by plane gratings with various periodic surface resistance are analyzed rigorously by the Galerkin method based on the mixed form of current expansions in the spectral and spatial domains. By investigating the difference between the equivalent resistance and the numerical values corresponding to the surface resistance of plane gratings, the applicable condition of the uniform approximation is directly cleared. And the equivalent anisotropic effects of various resistance distributions are compared.
収録刊行物
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- 電気学会論文誌. A
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電気学会論文誌. A 131 (2), 125-131, 2011
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390282679577124736
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- NII論文ID
- 10027803069
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- NII書誌ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL書誌ID
- 10951991
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可