Patent ID: 8237615

Claim:
An antennaless wireless handheld or portable device comprising: a user interface module, a processing module, a memory module, a communication module and, a power management module; the communication module including a radiating system capable of transmitting and receiving electromagnetic wave signals in a first frequency region and in a second frequency region, wherein the highest frequency of the first frequency region is lower than the lowest frequency of the second frequency region; said radiating system comprising a radiating structure comprising or consisting of at least one ground plane layer capable of supporting at least one radiation mode, the at least one ground plane layer including at least one connection point; at least one radiation booster to couple electromagnetic energy from/to the at least one ground plane layer, the/each radiation booster including a connection point; and at least one internal port, wherein the/each internal port is defined between the connection point of the/each radiation booster and one of the at least one connection point of the at least one ground plane layer; wherein the at least one ground plane layer has associated a ground plane rectangle, the ground plane rectangle being defined as the minimum-sized rectangle that encompasses the at least one ground plane layer so that the sides of the ground plane rectangle are tangent to at least one point of the at least one ground plane layer; the radiating system further comprising a radiofrequency system, and an external port; the radiofrequency system comprising a port connected to each of the at least one internal port of the radiating structure and a port connected to the external port of the radiating system; wherein the input impedance of the radiating structure at the/each internal port when disconnected from the radiofrequency system has an imaginary part not equal to zero for any frequency of the first frequency region; and wherein said radiofrequency system modifies the impedance of the radiating structure, providing impedance matching to the radiating system in the at least two frequency regions of operation of the radiating system.