Bistatic measurements of scattering from edges

Measurements are presented of scattering from a 30- degree metal wedge and from a metal plate which has a thickness of 0.75 wavelength. The measurements were made on an indoor bistatic scattering range operating at 70 GHz. A comparison is made of the experimental data with computations based on Keller's geometrical theory of diffraction. For the wedge, there is good agreement of the measurements and computations over a range of scattering angles in which the scattered power changes by over 40 dB. For the plate, the measurements of scattering agree quite well with the computations based on single diffraction from each edge.