Development of a new reflecting surface for electromagnetic waves

A new reflecting surface capable of simulating identical reflecting properties of a metallic plate with rectangular corrugations is reported. The new surface which is fabricated with a low loss dielectric plate of uniform thickness .One surface of the plate is periodically loaded with a grill structure of conducting wires and the other surface is completely metalized with copper. Depending on the grating parameters and the thickness of the dielectric plate, on reflection it is capable of rotating the plane of polarization or producing circular polarization of the incident electromagnetic wave. Compared to existing metallic corrugated surfaces, it is light in weight, less expensive, and mass production of large surfaces is possible by photolithographic method.