Patent ID: 9647328
Date: 2017-05-09
CPC Classifications: H01Q

Claim:
1. Patch antenna comprising: a dielectric substrate with an upper surface, an underside at a distance from the upper surface and circumferential lateral surfaces or lateral walls between the upper surface and the underside, a ground plane provided on the underside or below the underside of the substrate; an electrically conductive radiator surface arranged on the upper surface or above the upper surface of the substrate, a supply structure to supply the radiator surface, the radiator surface comprising an annular and/or frame-shaped radiator surface, which extends around a recess area, on the lateral surfaces or lateral walls or at a distance to the lateral surfaces or lateral walls, a lateral surface radiator structure galvanically connected to the radiator surface comprising, in the peripheral direction of the lateral surfaces or lateral walls, lateral radiator surface portions, between which electrically non-conductive recess areas are provided, the lateral radiator surface portions comprising a number of lateral radiator surface structures and/or recess areas, which are at least substantially triangular, trapezoidal or wave-shaped or are structured in accordance with a fractal pattern, from the radiator surface towards the ground plane; the supply structure being disposed on the plane of the radiator surface in the region of the recess in the radiator surface, the supply structure comprising a phase shifter arrangement connected to the radiator surface at two connection points causing a phase shift, and the phase shifter arrangement being arranged on the plane of the radiator surface in the region of the recess in the radiator surface, the phase shifter arrangement being galvanically connected to the radiator surface.