Scattering by a perfectly conducting finite size vertical rectangular plate

Expressions for the scattered field of a radio wave diffracted by a vertical, rectangular, perfectly conducting plate on a perfectly conducting flat ground, when it is illuminated by a vertical current element at ground level, are derived in closed form for all azimuthal positions of the receiving point. Experimental confirmation of the results for different sizes of the plate and different transverse positions of the plate is provided. The solution obtained is complementary to that using the geometrical theory of diffraction.