A radio antenna device for a radio communication terminal, e.g. a mobile phone, comprising a flat ground plane, a first monopole antenna element in the form of a meandered antenna element, and a second monopole antenna element having a folded three-dimensional box-like shape. The meandered antenna element has a first radio signal feeding point disposed at the ground plane. Furthermore, the meandered antenna element is located in the same plane as said ground plane in a direction of extension of the ground plane. The folded three-dimensional box-like shaped antenna element has a second radio signal feeding point disposed at a support member of the ground plane. Furthermore, the folded three-dimensional box-like shaped antenna element is located adjacent to said meandered antenna element. The meandered antenna element is operable in the first frequency band region and the folded three-dimensional box-like shaped antenna element is operable in the second frequency band region.