Enhanced transmission in microwave arrays of periodic sub-wavelength apertures

摘要

Several configurations of aperture arrays have been investigated using a rigorous numerical-analytical technique. The characteristics of optical transmission through a periodic array of sub-wavelength holes in metal films have been simulated and the mechanisms of the transmittance enhancement are discussed. The effects of topological factors and array arrangement have been explored from the perspective of enhancing microwave transmission through arrays of sub-wavelength apertures. The features and properties of aperture arrays used in quasi-optical filters and wavelength selective structures are presented.