Patent ID: 7903037

Claim:
A wireless device comprising: an external cover; a printed circuit board comprising a plurality of conducting layers; a dielectric support; and an antenna system, the antenna system comprising: a conducting radiating element, the conducting radiating element being arranged on the dielectric support; and a ground plane acting in cooperation with the conducting radiating element, the ground plane being arranged as a conducting layer of the plurality of conducting layers of the printed circuit board; wherein the printed circuit board, the dielectric support and the antenna system are arranged inside the external cover; wherein the conducting radiating element comprises a feeding point, wherein the feeding point is a starting point for a first shorter arm and a second longer arm, said first and second arms form a multilevel structure for the antenna system; wherein said first shorter arm extends along a direction; wherein said second longer arm is folded upon itself and extends along the first shorter arm in the same direction, such that a gap between said first shorter arm and said second longer arm is formed; wherein said first and second arms define similar winding paths; wherein said gap follows a winding path substantially similar to the winding paths of said first and second arms; wherein said multilevel structure comprises a conducting structure including a set of polygons, all of said polygons featuring the same number of sides, wherein said polygons are electromagnetically coupled either by means of a capacitive coupling or ohmic contact, wherein a contact region between directly connected polygons is smaller than 50% of a perimeter of said polygons in at least 75% of said polygons defining said multilevel structure; and wherein the antenna system provides operability in multiple frequency bands.