Support body of the ground plane of a flat antenna comprising pieges quarter wave

摘要

The present invention relates to a first aspect of a body (10) of the ground plane of a flat antenna including: - a longitudinal channel (20) defining a waveguide to the antenna; - two rectangular slots (31, 32) extending along the channel (20), and arranged on either side of the channel in order to define a quarter wave trap, characterized in that the part of the body situated between the channel and each groove is machined so that when the plane of mass is mounted on the body, said part of the body is spaced apart from the ground plane by an air layer of a dimension (b) contrôlée.selon another aspect, the invention relates to a flat antenna comprising a substrate, a ground plane supporting the substrate and a body of the first aspect of the invention, against which the ground plane is pressed or fixed