Abstract: A wireless handheld or portable device includes an antenna system operable in a first frequency region and a higher, second frequency region. The antenna system comprises an antenna structure, a matching and tuning system, and an external input/output (I/O) port. The antenna structure comprises at least one radiating element including a connection point, a ground plane layer including at least one connection point, and at least one internal I/O port. At least one radiating element of the antenna structure protrudes beyond the ground plane layer. The antenna structure features at any of its internal I/O ports when disconnected from the matching and tuning system an input return loss curve having a minimum at a frequency outside the first frequency region of the antenna system. The matching and tuning system modifies the impedance of the antenna structure and provides impedance matching to the antenna system in the first and second regions.

Abstract: An apparatus comprises an antenna element operable in multiple frequency bands and configured to be connected to a ground plane and to a radiofrequency system to provide impedance matching at the multiple frequency bands, where the radiofrequency system comprising at least a matching network. A maximum length of the antenna element is shorter than L/12 but longer than L/22, where L is the free-space wavelength corresponding to a lowest frequency related to a lowest frequency region of operation of the antenna element. A contour of the antenna element has a complexity factor F12 less than 1.25.

Abstract: A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.

Abstract: A stand-alone component for a radiating system of a wireless device comprises a dielectric support and first and second surfaces respectively comprising first and a second conductive surface elements spaced by the dielectric support and electrically connected by a conductor. The stand-alone component features a parallelepiped shape, and the first and second surfaces are polygons. The first and second surfaces are the largest surfaces of the parallelepiped component. The stand-alone component has a maximum size smaller than a longest operating wavelength of the stand-alone component divided by 20 and is connected to a radiofrequency system and coupled to a ground plane within the radiating system.

Abstract: An apparatus comprises an antenna element operable in multiple frequency bands and configured to be connected to a ground plane and to a radiofrequency system to provide impedance matching at the multiple frequency bands, where the radiofrequency system comprising at least a matching network. A maximum length of the antenna element is shorter than L/12 but longer than L/22, where L is the free-space wavelength corresponding to a lowest frequency related to a lowest frequency region of operation of the antenna element. A contour of the antenna element has a complexity factor F12 less than 1.25.

Abstract: A wireless device comprises a radiating system that comprises and a radiating structure that operates in at least two frequency regions. The radiating structure comprises: a ground plane layer having a first connection point; a single radiation booster having a first connection point; a radiofrequency system comprising a first input port, a plurality of external output ports, and a plurality of branches, at least some of the plurality of branches being connected to a common point connected to the first input port, wherein each of the plurality of external output ports provides operation in at least one of the at least two frequency regions of operation; and a first internal port defined between the first connection point of the radiation booster and the first connection point of the ground plane layer, the first internal port being connected to the first input port of the radiofrequency system.

Abstract: A radiating system comprises a radiating structure, first and second external ports, and a radiofrequency system. The radiating structure comprises a ground plane layer including a connection point, a single radiation booster including a connection point, and a first internal port defined between the connection points of the single radiation booster and the ground plane layer. The first and second external ports each provide operation in at least one frequency band. The radiofrequency system includes a first port connected to the first internal port of the radiating structure, and second and third ports respectively connected to the first and second external ports.

Abstract: A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.

Abstract: A radiating system of a wireless device transmits and receives electromagnetic wave signals in a frequency region and comprises an external port, a radiating structure, and a radiofrequency system. The radiating structure includes: a ground plane layer with a connection point; a radiation booster with a connection point and being smaller than 1/30 of a free-space wavelength corresponding to a lowest frequency of the frequency region; and an internal port between the radiation booster connection point and the ground plane layer connection point. The radiofrequency system includes: a first port connected to the radiating structure's internal port; and a second port connected to the external port. An input impedance at radiating structure's disconnected internal port has a non-zero imaginary part across the frequency region. The radiofrequency system modifies impedance of the radiating structure to provide impedance matching to the radiating system within the frequency region at the external port.

Abstract: A wireless device comprises a radiating system that comprises and a radiating structure that operates in at least two frequency regions. The radiating structure comprises: a ground plane layer having a first connection point; a single radiation booster having a first connection point; a radiofrequency system comprising a first input port, a plurality of external output ports, and a plurality of branches, at least some of the plurality of branches being connected to a common point connected to the first input port, wherein each of the plurality of external output ports provides operation in at least one of the at least two frequency regions of operation; and a first internal port defined between the first connection point of the radiation booster and the first connection point of the ground plane layer, the first internal port being connected to the first input port of the radiofrequency system.

Abstract: A radiating system of a wireless device transmits and receives electromagnetic wave signals in a frequency region and comprises an external port, a radiating structure, and a radiofrequency system. The radiating structure includes: a ground plane layer with a connection point; a radiation booster with a connection point and being smaller than 1/30 of a free-space wavelength corresponding to a lowest frequency of the frequency region; and an internal port between the radiation booster connection point and the ground plane layer connection point. The radiofrequency system includes: a first port connected to the radiating structure's internal port; and a second port connected to the external port. An input impedance at radiating structure's disconnected internal port has a non-zero imaginary part across the frequency region. The radiofrequency system modifies impedance of the radiating structure to provide impedance matching to the radiating system within the frequency region at the external port.

Abstract: A stand-alone component for a radiating system of a wireless device comprises a dielectric support and first and second surfaces respectively comprising first and a second conductive surface elements spaced by the dielectric support and electrically connected by a conductor. The stand-alone component features a parallelepiped shape, and the first and second surfaces are polygons. The first and second surfaces are the largest surfaces of the parallelepiped component. The stand-alone component has a maximum size smaller than a longest operating wavelength of the stand-alone component divided by 20 and is connected to a radiofrequency system and coupled to a ground plane within the radiating system.

Abstract: A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.

Abstract: A radiating system for transmitting and receiving signals in first and second frequency regions includes a radiating structure, a radiofrequency system, and an external port. The radiating structure has first and second isolated radiation boosters coupled to a ground plane layer. A first internal port of the radiating structure is between the first radiation booster and the ground plane layer, and a second internal port is between the second radiation booster and the ground plane layer. A distance between the two internal ports is less than 0.06 times a wavelength of the lowest frequency. The maximum size of the first and second radiation boosters is smaller than 1/30 times the wavelength of the lowest frequency. The radiofrequency system includes two ports connected respectively to the first and the second internal ports of the radiating structure, and a port connected to the external port of the radiating system.

Abstract: An apparatus comprises an antenna element operable in multiple frequency bands and configured to be connected to a ground plane and to a radiofrequency system to provide impedance matching at the multiple frequency bands, where the radiofrequency system comprising at least a matching network. A maximum length of the antenna element is shorter than L/12 but longer than L/22, where L is the free-space wavelength corresponding to a lowest frequency related to a lowest frequency region of operation of the antenna element. A contour of the antenna element has a complexity factor F12 less than 1.25.

Abstract: A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.

Abstract: An antenna system comprises an antenna structure configured to operate in at least two cellular communication frequency bands. The antenna structure comprising a ground plane and an antenna element. The ground plane comprises a two-dimensional surface of conductive material arranged within a border that has the shape of an irregular, non-periodic contour-curve, wherein a value Q is given by a ratio of a length of the border contour of the ground plane and a diameter of the smallest circle encompassing the ground plane entirely, wherein the value Q is at least 3. The antenna element is arranged substantially perpendicular to the ground plane, and the ground plane has an opening where the antenna element is arranged. The diameter of the smallest circle encompassing the ground plane entirely is less than one-fifth of a longest free operating wavelength of the antenna element.

Abstract: A radiating system comprises a radiating structure, first and second external ports, and a radiofrequency system. The radiating structure comprises a ground plane layer including a connection point, a single radiation booster including a connection point, and a first internal port defined between the connection points of the single radiation booster and the ground plane layer. The first and second external ports each provide operation in at least one frequency band. The radiofrequency system includes a first port connected to the first internal port of the radiating structure, and second and third ports respectively connected to the first and second external ports.

Abstract: This invention refers to an antenna structure for a wireless device comprising a ground plane and an antenna element, wherein the ground plane has the shape of an open loop. The invention further refers to an antenna structure for a wireless device, such as a light switch or a wristsensor or wristwatch, comprising an open loop ground plane having a first end portion and a second end portion, the open loop ground plane defining an opening between the first end portion and the second end portion; and an antenna component positioned within the opening defined between the first end portion and the second end portion and overlapping at least one of the first end portion or the second end portion. Further the invention refers to a corresponding wireless device and to a method for integrating such an antenna structure in a wireless device.

Abstract: A radiating system of a wireless device transmits and receives electromagnetic wave signals in a frequency region and comprises an external port, a radiating structure, and a radiofrequency system. The radiating structure includes: a ground plane layer with a connection point; a radiation booster with a connection point and being smaller than 1/30 of a free-space wavelength corresponding to a lowest frequency of the frequency region; and an internal port between the radiation booster connection point and the ground plane layer connection point. The radiofrequency system includes: a first port connected to the radiating structure's internal port; and a second port connected to the external port. An input impedance at radiating structure's disconnected internal port has a non-zero imaginary part across the frequency region. The radiofrequency system modifies impedance of the radiating structure to provide impedance matching to the radiating system within the frequency region at the external port.