EBG enhanced feeds for high aperture efficiency reflector antennas

Typical feed horns can be lengthy and bulky, especially at low frequencies. This aspect alone constitutes a significant drive to nd alternative technologies, more suited to mass production, that can be used to obtain equally performing feeds. In particular it is useful to explore the possibility of using printed circuit board technology to upgrade the performances of a moderately sized (in terms of the wavelength) waveguide horn, so that the resulting feed can be used to efciently illuminate a reector antenna.