Compact, multiband and optionally reconfigurable high-impedance surface device and associated process

Abstract

Some embodiments are directed to a high impedance surface device. The high impedance surface device can include a set of at least two separate, substantially cylindrical compartments, that have internal surfaces in an electrically conductive material. The compartments each define, at one end, a single aperture, oriented on the same side, and covered by at least one periodic structure of electrically conductive patterns. Each compartment is filled with a dielectric material, and is thus covered forming at least one electromagnetic resonator. Each electromagnetic resonator exhibits a resonant wavelength. The at least two compartments are separated from one another by a distance less than the shortest resonant wavelength exhibited by the resonators that they form. At least two respective resonant wavelengths of the electromagnetic resonators formed by the at least two covered compartments are different, and the periodic structure exhibits a spatial period less than half the shortest resonant wavelength.