Abstract
Based on the Born approximation, we reduce the approximate analysissolution to the normal and oblique incident electromagnetic wavescattering from the weakly ionized plasma layer shielded by a conductingsurface. The solution is closely related to the density profile of theplasma layer. Employing the self-consistent base function, we yield theoptimal density profile for the nonuniform plasma layer with thefrequencies of incident electromagnetic waves ranging from 4-10 GHz.Numerical studies illustrate the optimal density profile can ``survive''wide ranges of the plasma parameters. Different from the validitycondition for the Wenzell-Kramers-Brillouin-Jeffreys (WKBJ)approximation, the Born approximation is feasible even if the scalelength is smaller than the wavelength. Therefore, the Born approximationis universal against the scattering problem from the weakly ionized plasma.
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