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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 unbounled half space,whereas the FEM is used to solve the goveing 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 form ulation 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 pattes of rough surfaces with different rms heights and correlation lengths Analysis of electromagnetic scattering from a rough surface[1-3] is a very important issue in various areas of electromagnetic wave theory.Methods used to study rough surface scattering can be categorized into two groups:(1) analytical and approximate methods[4,5] and (2) numerical methods.[6,7] including method of moment (MoM)[8-10] and the finite difference in time domain method (FDTD).