Electromagnetic scattering by nonplanar junctions of resistive sheets

Approximate uniform asymptotic expressions are provided to determine the fi eld scattered by a penetrable wedge illuminated at normal incidence, The we dge is formed by two resistive sheets or two thin dielectric slabs definabl e as resistive sheets having identical geometric and electromagnetic charac teristics. The solution is limited to wedge angles and source positions whe re internal reflections cannot occur. It is obtained by using a geometrical optics (GO) approximation for the held internal to the slabs and by perfor ming a uniform asymptotic evaluation of the physical optics (PO) radiation integral in the hypothesis that a resistive sheet condition is valid. Sampl es of numerical results so obtained are presented and compared with other m ethods to demonstrate the effectiveness of the proposed technique.