Electromagnetic Scattering from Randomly Rough Surfaces with Hybrid FEM/BIE

Autor:	Li Jie, He Qiong, Guo Li-Xin, Wei Bing
Rok vydání:	2011
Předmět:	Physics symbols.namesake Scattering Gaussian Mathematical analysis symbols General Physics and Astronomy Boundary (topology) Boundary value problem Method of moments (statistics) Half-space Integral equation Finite element method
Zdroj:	Chinese Physics Letters. 28:104101
ISSN:	1741-3540 0256-307X
Popis:	The hybrid finite element method (FEM) together with the boundary integral equation (BIE) is firstly applied to scattering from a conducting rough surface. The BIE is used as the truncation boundary condition for the special unbounded half space, whereas the FEM is used to solve the governing equation in the region surrounded by a rough surface and artificial boundary. Tapered wave incidence is employed to cancel the so-called "edge effect". A hybrid FEM/BIE formulation for generalized one-dimensional conducting rough surface scattering is presented, as well as examples that evaluate its validity compared to the method of moments. The bistatic scattering coefficients of a Gaussian rough surface are calculated for transverse-magnetic wave incidence. Conclusions are reached after analyzing the scattering patterns of rough surfaces with different rms heights and correlation lengths
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::98157468512f4d1e82d9f214e6e1cce0 https://doi.org/10.1088/0256-307x/28/10/104101 Zobrazit plný text záznamu