介质涂敷导电凸曲面上磁振子辐射场一致性几何绕射理论

A UTD Solution for the Radiated Field from Slot on a Conducting Convex Surface with a Dielectric Coating

本文研究了介质涂敷导电凸曲面上磁振子辐射与绕射一致性高频渐近理论．文中在典型曲面辐射场一致性高频近似解基础上发展了介质涂敷导电凸曲面上磁振子辐射与绕射的一致性几何绕射理论，导出了涂敷导电凸曲面上磁流源高频电磁辐射场的一致性几何绕射理论公式在这个公式中，辐射与绕射场用四个广义Fock型函数表示，深光区这些函数退化为几何光学场。

A UTD(Uniform Geometrical Theory of Diffraction) is developed for the HF electromagnetic radiation and diffraction field from slot on a conducting convex surface coated with a dielectric layer. With the aid of the caonical problem UTD solution, the dyadic transfer function(DTF) between the source and the radiation(or diffraction) field is derived for the problem. The radiation and diffraction field are expressed by compound Fock's functions (CFF). The compound Fock'sfunctions reduce to the geometrical optics field in the deep lit region and are deseribed by creeping waves in the shadow region and also remain uniformly crossing the boundary between lit and shadow region.Some numerical results based on the UTD solution are given and shown to agree well with experiments or exact results.