Antenna device with a planar antenna and a wide band reflector and method of realizing of the reflector

摘要

The method involves determining distribution of amplitude of electromagnetic radiation adapted to be emitted by a flat plate antenna (2) in a near field in a plane parallel to an upper surface (24) of an antenna support (21) for two frequencies in a operating frequency band of the antenna. Shape and dimensions of sets (331-335) of conductive patterns (33) near a zone where the radiation has high amplitude are determined such that each set of the patterns forms a high impedance surface at frequency corresponding to distribution of the considered amplitude. Independent claims are also included for the following: (1) an antennal reflector comprising a radiating element mounted on a surface of an antenna support (2) an antenna device comprising an antenna support with a flat surface.