An antenna structure for use in a wireless communication device, the structure comprising (i) a plurality of antenna portions each having a substantially planar radiating surface and (ii) a conducting ground portion; wherein the radiating surfaces of the antenna portions are substantially parallel to one another in a side-by-side relationship and are substantially parallel to part of the conducting ground portion located behind the antenna portions with respect to a direction of transmission of radiation from the antenna portions, the conducting ground portion comprising a first part galvanically connected to each of the antenna portions and, electrically coupled to the first part, a second conducting part forming at least part of a cover for a wireless communication device.