Abstract: A patch antenna comprising a conductive ground plate (1), a conductive patch (2) arranged in parallel above said conductive ground plate (1), a feed conductor (6) for feeding said patch antenna, and a dielectric substrate material (5) arranged between the conductive ground plate (1) and the conductive patch (2), wherein the feed conductor (6) is connected to one side of the dielectric substrate material (5) and the conductive patch (2) is connected to another side of said electric substrate material (5). The dielectric material provided between the patch and the ground plate serves at increasing cross-polarization separation and matching the antenna impedance. Thus, cross-polar separation and increased bandwidth can be achieved within the patch antenne in a simple and cost-effective way. Moreover, an ordinary probe feed and coaxial cables can be used and precise small capacitance can be implemented.