Patent ID: 7471246

Claim:
A monopole antenna comprising: a radiating element defining an external perimeter; wherein the radiating element comprises at least one hole; wherein the at least one hole has an area of at least 20% of an area included inside the external perimeter; wherein the external perimeter of the radiating element is shaped as a polygonal element comprising at least four sides; wherein a perimeter of the at least one hole is shaped as a polygon comprising three or more sides; wherein the radiating element is shorter than a quarter of a longest operating wavelength of the monopole antenna; wherein the monopole antenna features a multiband behavior; wherein the external perimeter of the radiating element and the perimeter of at least one of the at least one hole are not both circles; and wherein the external perimeter of the radiating element and the perimeter of at least one of the at least one hole are not both ellipses.