The present invention relates to an antenna arrangement for a thin elongated portable communication device as well as to a thin elongated portable communication device including such an antenna arrangement. The antenna arrangement may include a thin elongated ground plane, and a flat monopole radiating antenna element, the flat monopole radiating antenna element having a three-dimensional extension, being provided spaced from the ground plane along a longitudinal axis of the ground plane and encircling more than half of the longitudinal axis of the ground plane.