Abstract: An electronic device disclosed herein includes one or more sensors for collecting data relating to a product context that an electronic device is currently placed or used in. A product context detector of the electronic device analyzes the collected data to identify the current product context, and a power controller of the electronic device alters transmission power of at least one antenna of the electronic device based on the identified product context to ensure compliance with an applicable specific absorption rate (SAR) standard.

Abstract: There is disclosed an antenna system for mobile handsets and other devices. The antenna system comprises a dielectric substrate having first and second opposed surfaces, a conductive track on the substrate, and a separate, directly driven antenna to drive the parasitic loop antenna formed by the conductive track. Two grounding points are provided adjacent to each other on the first surface of the substrate, with the arms of the conductive track extending in generally opposite directions from the grounding points. The conductive tracks then extend towards an edge of the dielectric substrate, before passing to the second surface of the dielectric substrate and then passing across the second surface of the dielectric substrate following a path generally following the path taken on the first surface of the dielectric substrate.

Abstract: A capacitive sensor pad is co-located with (e.g., overlapping) an RF transmitter without causing significant degradation to the performance of the antenna. In one implementation, tuning the resistance per square in the capacitive sensor pad can provide effective sensor pad range and performance while providing making the capacitive sensor pad sufficiently transparent to radiofrequency waves to provide excellent antenna efficiency, despite the co-location of the capacitive sensor pad and the antenna.

Abstract: A capacitive sensor pad is co-located with (e.g., overlapping) an RF transmitter without causing significant degradation to the performance of the antenna. In one implementation, tuning the resistance per square in the capacitive sensor pad can provide effective sensor pad range and performance while providing making the capacitive sensor pad sufficiently transparent to radiofrequency waves to provide excellent antenna efficiency, despite the co-location of the capacitive sensor pad and the antenna.

Abstract: An antenna arrangement with an active radiating element forming a plurality of inductively-coupled resonating loop antennas drives a parasitic radiating element. The active radiating element is electrically coupled to a feed contact and tuned according to one or more variable capacitors and inductors. The active radiating element drives the parasitic radiating element into a state of resonance for transmitting and receiving wireless communication radiofrequency waves. The antenna arrangement provides a relatively stable return loss profile over a wide frequency band, which may be adjusted to fit a desired communications band.

Abstract: An electronic device provides a detuning monitor circuit configured to detect a change in a voltage standing wave ratio (VSWR) between a radio frequency (RF) transmitter and an RF antenna relative to a predetermined VSWR baseline and a proximity detector circuit configured to adjust transmission power of a carrier wave transmitted from the RF transmitter, if the change fails to satisfy an acceptable VSWR condition. Network proximity detectors are also provided to allow coordination of antenna subsystems to comply with specific absorption rate (SAR) constraints and/or maintain/improve antenna performance.

Abstract: A wireless communications device with a first housing including an LTE modem and a plurality of LTE antennas and a second housing including a battery system and network communications assembly, the first housing and second housing pivotally joined via a hinge assembly permitting movement of the device between a closed and one or more open positions.

Abstract: An electronic device disclosed herein includes one or more sensors for collecting data relating to a product context that an electronic device is currently placed or used in. A product context detector of the electronic device analyzes the collected data to identify the current product context, and a power controller of the electronic device alters transmission power of at least one antenna of the electronic device based on the identified product context to ensure compliance with an applicable specific absorption rate (SAR) standard.

Abstract: A metal computing device case includes one or more metal side faces bounding at least a portion of the metal back face. The metal computing device case includes a radiating structure including an exterior metal surface of the metal computing device case. The metal computing device case substantially encloses electronics of a computing device. The exterior metal surface is a metal plate insulated from the rest of the metal computing device case by a dielectric insert filling slots between the metal plate and the rest of the metal computing device case. The radiating structure also includes a ceramic block spaced from a metal plate by a dielectric spacer. The metal plate is insulated from the rest of the metal computing device case and is capacitively coupled with the ceramic block.

Abstract: A capacitive sensor pad is co-located with (e.g., overlapping) an RF transmitter without causing significant degradation to the performance of the antenna. In one implementation, tuning the resistance per square in the capacitive sensor pad can provide effective sensor pad range and performance while providing making the capacitive sensor pad sufficiently transparent to radiofrequency waves to provide excellent antenna efficiency, despite the co-location of the capacitive sensor pad and the antenna.

Abstract: An isolator assembly is configured to provide isolation in each of multiple non-overlapping frequency bands and includes a selection network to select one of the multiple non-overlapping frequency bands for an isolation operation. During the isolation operation, the isolator assembly prevents signal coupling between antennas that are positioned on opposite sides of the isolator assembly.

Abstract: A capacitive sensor pad is co-located with (e.g., overlapping) an RF transmitter without causing significant degradation to the performance of the antenna. In one implementation, tuning the resistance per square in the capacitive sensor pad can provide effective sensor pad range and performance while providing making the capacitive sensor pad sufficiently transparent to radiofrequency waves to provide excellent antenna efficiency, despite the co-location of the capacitive sensor pad and the antenna.

Abstract: There is disclosed an antenna system for mobile handsets and other devices. The antenna system comprises a dielectric substrate having first and second opposed surfaces, a conductive track on the substrate, and a separate, directly driven antenna to drive the parasitic loop antenna formed by the conductive track. Two grounding points are provided adjacent to each other on the first surface of the substrate, with the arms of the conductive track extending in generally opposite directions from the grounding points. The conductive tracks then extend towards an edge of the dielectric substrate, before passing to the second surface of the dielectric substrate and then passing across the second surface of the dielectric substrate following a path generally following the path taken on the first surface of the dielectric substrate.

Abstract: An antenna assembly includes a portion of the metal computing device case as a primary radiating structure. The metal computing device case includes a back face and one or more side faces bounding the back face. The metal computing device case further includes a radiating structure having an aperture formed in the back face from which a notch extends from the aperture cutting through the back face and through at least one side face of the metal computing device case. A conductive feed structure is connected to a radio. The conductive feed structure is positioned proximal to the radiating structure of the metal computing device case and is configured to excite the radiating structure at one or more resonance frequencies.

Abstract: There is disclosed an antenna system for mobile handsets and other devices. The antenna system comprises a dielectric substrate having first and second opposed surfaces, a conductive track on the substrate, and a separate, directly driven antenna to drive the parasitic loop antenna formed by the conductive track. Two grounding points are provided adjacent to each other on the first surface of the substrate, with the arms of the conductive track extending in generally opposite directions from the grounding points. The conductive tracks then extend towards an edge of the dielectric substrate, before passing to the second surface of the dielectric substrate and then passing across the second surface of the dielectric substrate following a path generally following the path taken on the first surface of the dielectric substrate.

Abstract: An antenna assembly includes a portion of the metal computing device case as a primary radiating structure. The metal computing device case includes a back face and four side faces bounding at least a portion of the back face. The metal computing device case further includes a radiating structure having an aperture formed in the back face from which a notch extends from the aperture cutting through the back face and through at least one side face of the metal computing device case. A conductive feed structure is connected to a radio. The conductive feed structure is connected to or positioned proximal to the radiating structure of the metal computing device case and is configured to excite the radiating structure at one or more resonance frequencies.

Abstract: There is disclosed a loop antenna for mobile handsets and other devices. The antenna comprises a dielectric substrate (23) having first and second opposed surfaces and a conductive track (24) formed on the substrate (23). A feed point (26) and a grounding point (25) are provided adjacent to each other on the first surface of the substrate (23), with the conductive track (24) extending in generally opposite directions from the feed point (26) and grounding point (25) respectively and winding around the substrate (23) to the second surface and passing along a path generally opposite to the path taken on the first surface of the dielectric substrate (23). The conductive tracks (24) then connect to respective sides of a conductive arrangement (27) that extends into a central part of a loop formed by the conductive track (24) on the second surface of the dielectric substrate (23). The conductive arrangement (27) comprises both inductive and capacitive elements.

Abstract: Techniques for implementing an integrated antenna structure are described. In at least some implementations, the integrated antenna structure includes an antenna that is folded and/or meandered in design to enable the antenna to be incorporated into a compact area. The integrated antenna structure further includes the antenna electrically attached to a chassis of a device. According to various implementations, the antenna and the chassis combine to form an integrated radiating structure that enables the device to send and/or receive wireless signals.

Abstract: An isolator assembly is configured to provide isolation in each of multiple non-overlapping frequency bands and includes a selection network to select one of the multiple non-overlapping frequency bands for an isolation operation. During the isolation operation, the isolator assembly prevents signal coupling between antennas that are positioned on opposite sides of the isolator assembly.

Abstract: There is disclosed an antenna device relating to a single or dual band antenna system for use in mobile telecommunications devices, laptop and tablet computers, USB adapters and electrically small radio platforms comprising a pair of antennas attached to a conductive ground plane, the antennas being separated by free space in which at least one notch is formed in the conductive ground plane between the pair of antennas characterised in that the notch further includes an inductive component and a capacitive component providing good antenna isolation so as to enable MIMO operation or diversity operation.