Deacetis L A, Einstein F S, Juliano R A, Lazar I
Appl Opt. 1976 Nov 1;15(11):2866-70. doi: 10.1364/AO.15.002866.
A comparison is made between approximations using the geometrical theory of diffraction (GTD) and Kirchhoff theory and the exact solution using Maxwell's equations for the case of Fraunhofer diffraction of electromagnetic radiation incident upon a long, thin, perfectly conducting strip with the electric field vector polarized perpendicular to the strip axis. Strip widths from approximately 0.3lambda to 3lambda are considered. Glancing angles of incidence are taken from 4 degrees to 90 degrees . Irradiances are compared as a function of diffraction angle in the region on the same side of the strip as the incident radiation.
针对电场矢量垂直于长细理想导电带轴极化的电磁辐射在夫琅禾费衍射情况下，对使用衍射几何理论（GTD）和基尔霍夫理论的近似解与使用麦克斯韦方程组的精确解进行了比较。考虑了宽度从约0.3λ到3λ的导电带。入射角掠射角取值范围为4度到90度。在与入射辐射位于导电带同一侧的区域，将辐照度作为衍射角的函数进行了比较。
