Umul, Yusuf Ziya2021-06-152025-09-182021-06-152025-09-182020Umul, Yusuf Ziya (2020). "Modified theory of physical optics approach to impedance surfaces for skew incidence", Optik, Vol. 205.0030-40261618-1336https://doi.org/10.1016/j.ijleo.2019.163840https://hdl.handle.net/20.500.12416/12383Umul, Yusuf/0000-0001-9342-2728A three dimensional modified theory of physical optics integral is constructed for the impedance surfaces, illuminated by a plane wave for skew incidence. The scalar fields are taken into account. The kernel of the physical optics integral is evaluated by using a relation with the geometric optics waves and stationary phase evaluation of the integral. The obtained surface integral is applied to the diffraction problem of waves by an impedance half-plane. The scattered fields are investigated numerically.eninfo:eu-repo/semantics/closedAccessImpedance SurfacesPhysical OpticsDiffraction TheoryArticle10.1016/j.ijleo.2019.1638402-s2.0-85076217055