Microwave Propagation Over Periodic Rough Surfaces

The use of periodic rough surfaces as a tool for research in rough earth scattering problems has been investigated. All of the surfaces studied were periodic in the direction of propagation, uniform in the transverse direction and conducting. Their amplitudes and wavelengths were on the order of the wavelength in the region of interest (X-band). This paper summarizes a set of experimental measurements that were made employing such surfaces, illuminated with a beam of radiation. The surfaces were in the far-field of the antennas used.