Patent ID: 7710331

Claim:
A multilayer antenna having a planar design, in particular a patch antenna preferably excluding an inverted F antenna, comprising a plurality of surfaces and/or layers arranged along an axial axis (Z) with or without lateral offset from one another comprising: an electrically conductive earth surface a conductive radiation surface is arranged at a lateral distance from the earth surface and preferably extending parallel thereto, a dielectric carrier arranged between the earth surface and the radiation surface at least in a partial height and/or a partial region, optionally next to air, the radiation surface electrically connected to an electrically conductive feed line, a support means provided directly or indirectly on the side of the radiation surface opposing the earth surface, an electrically conductive patch assembly provided on the side of the support means opposing the radiation surface, the support means being a thickness or height which is less than an overall thickness or height of the patch assembly, the patch assembly comprising a primary patch element which is box-shaped or box-like in its configuration and comprises for this purpose, in addition to a base portion or central portion, elevations, edges and/or webs protruding transversely thereto, the patch assembly is divided at least into two and comprises, in addition to the primary patch element, a secondary patch additional element, the primary patch element and the patch additional element positioned toward one another and at least partly in one another to change the overall height thereof, and the patch additional element being held by a separate holding and support means, by a hood covering the entire antenna assembly.