In accordance with embodiments of the present disclosure, an information handling system may include an enclosure for housing information handling resources of the information handling system, the enclosure having an antenna slot formed therein and formed from a material substantially different from that in which the remainder of the enclosure is formed and a circuit board mechanically coupled to the enclosure and proximate to the antenna slot, the circuit board comprising an antenna electrically coupled at two or more locations to the enclosure so as to form a loop antenna and the antenna positioned such that the antenna at least partially overlaps the antenna slot.

A positive terminal of a battery may act as an antenna ground plane for communicating battery status information. The positive terminal of the battery may include a first electrically conductive external surface with a first surface area. The negative terminal of the battery may include a second electrically conductive external surface with a second surface area less than the first surface area. An antenna impedance matching circuit may electrically connect to a communication circuit, an antenna, and the positive terminal of the battery. Thus the positive terminal of the battery may act as a ground plane for the antenna.

A resonator comprising: an insulating layer having a top side and a bottom side; a conductive layer mounted to the bottom side of the insulating layer; a radio frequency (RF) connector designed to be connected to a transceiver, wherein the RF connector is mounted to the top side of the insulating layer, and wherein the RF connector has a center conductor that is electrically connected to the conductive layer; and means for attaching the conductive layer to a conductive structure, wherein the conductive structure has a dimension of at least one-half wavelength of an operating frequency of the transceiver such that when the resonator is attached to the transceiver and to the conductive structure the conductive structure functions as an antenna.

A resonator comprising: an insulating layer having a top side and a bottom side; a conductive layer mounted to the bottom side of the insulating layer; a radio frequency (RF) connector designed to be connected to a transceiver, wherein the RF connector is mounted to the top side of the insulating layer, and wherein the RF connector has a center conductor that is electrically connected to the conductive layer; and means for attaching the conductive layer to a conductive structure, wherein the conductive structure has a dimension of at least one-half wavelength of an operating frequency of the transceiver such that when the resonator is attached to the transceiver and to the conductive structure the conductive structure functions as an antenna.

A balun includes an unbalanced port, a first balanced port, a second balanced port, a main line, a subline, a capacitor, and an impedance matching section. The subline is configured to be electromagnetically coupled to the main line. The main line has a first end and a second end opposite to each other. The subline has a first end and a second end opposite to each other. The capacitor is provided between the first end of the main line and the unbalanced port. The impedance matching section is provided between the second end of the subline and the second balanced port. The second end of the main line is connected to a ground. The first end of the subline is connected to the first balanced port.

The present invention refers to an antenna less wireless handheld or portable device comprising a 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. The radiating system comprising a radiating structure and at least one internal port, 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.

The present invention refers to an antenna less wireless handheld or portable device comprising a 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. The radiating system comprising a radiating structure and at least one internal port, 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.

A wireless device includes at least one slim radiating system having a slim radiating structure and a radio-frequency system. The slim radiating structure includes one or more booster bars. The booster bar has slim width and height factors that facilitate its integration within the wireless device and the excitation of a resonant mode in the ground plane layer, and has a location factor that enables it to achieve the most favorable radio-frequency performance for the available space to allocate the booster bar. The at least one slim radiating system may be configured to transmit and receive electromagnetic wave signals in one or more frequency regions of the electromagnetic spectrum.

A wireless device includes at least one slim radiating system having a slim radiating structure and a radio-frequency system. The slim radiating structure includes one or more booster bars. The booster bar has slim width and height factors that facilitate its integration within the wireless device and the excitation of a resonant mode in the ground plane layer, and has a location factor that enables it to achieve the most favorable radio-frequency performance for the available space to allocate the booster bar. The at least one slim radiating system may be configured to transmit and receive electromagnetic wave signals in one or more frequency regions of the electromagnetic spectrum.

An antenna comprising a plurality of legs, a plurality of parasitic elements, each disposed between two of the plurality of legs and a gap between each of the parasitic elements and each of the associated legs that the parasitic element is disposed between.