Abstract: Data about concentration of one or more types of molecules present within a human body are determined noninvasively using radio frequency signals. Signals at several different frequencies at very low power levels are emitted using an antenna mounted to a wearable device. The antenna includes nested elements of different sizes. Operating values, such as changes to the impedance of the antenna, are associated with the concentration of one or more types molecules within the user. Concentrations at different depths may be measured by using different sets of the nested elements at different times. Operating values at those times are measured and used to determine information indicative of concentration of the molecules. During use, a long axis of the antenna may be aligned with a long axis of a user's arm.

Abstract: Systems, methods, and computer-readable media are disclosed for ring-shaped devices with combined battery and antenna. In one embodiment, an example device may include an inner shell, and an outer shell coupled to the inner shell, where the outer shell and inner shell together form a first side portion, a second side portion, and a lower portion of the ring-shaped device. The device may include an antenna element coupled to the outer shell and the inner shell, where the antenna element forms an upper portion of the ring-shaped device, a battery disposed adjacent to the antenna element, and a flexible printed circuit assembly disposed along the first side portion, wherein the flexible printed circuit assembly is coupled to the antenna element and the battery.

Abstract: Systems, methods, and computer-readable media are disclosed for ring-shaped devices with voice integration. In one embodiment, an example device may include an antenna element that at least partially forms an outer surface of the ring-shaped device, an outer shell coupled to the antenna element, an inner shell coupled to the outer shell, a curved battery disposed along a first side of the ring-shaped device, and a flexible printed circuit assembly coupled to the curved battery and disposed along a second side of the ring shaped device.

Abstract: Systems, methods, and computer-readable media are disclosed for ring-shaped devices with combined Bluetooth and NFC antenna assemblies. In one embodiment, an example device may include an inner shell, an outer shell coupled to the inner shell, where the outer shell and inner shell together form a first side portion, a second side portion, and a lower portion of the ring-shaped device, a battery, and an antenna assembly that forms an upper portion of the ring-shaped device. The antenna assembly may include a metal substrate, a ferrite layer disposed on the metal substrate, and a metallic loop structure disposed on the ferrite layer.

Abstract: An electronic device that includes a metal element arranged to at least partially cover a high impedance region associated with an antenna of the electronic device. The metal element presents a capacitive load to the antenna to mimic or replicate a capacitance placed on the antenna by a conductive element, such as a user's finger, coming in contact or close proximity to the antenna area. The capacitive load applied by the metal element tunes the antenna system for a large capacitance to resist antenna de-tuning and radio link interruption caused by the unintended user contact or near contact with the high impedance region of the antenna.

Abstract: Systems, methods, and computer-readable media are disclosed for ring-shaped devices with voice integration. In one embodiment, an example device may include an antenna element that at least partially forms an outer surface of the ring-shaped device, an outer shell coupled to the antenna element, an inner shell coupled to the outer shell, a curved battery disposed along a first side of the ring-shaped device, and a flexible printed circuit assembly coupled to the curved battery and disposed along a second side of the ring shaped device.

Abstract: Systems, methods, and computer-readable media are disclosed for ring-shaped devices with voice integration. In one embodiment, an example device may include an antenna element that at least partially forms an outer surface of the ring-shaped device, an outer shell coupled to the antenna element, an inner shell coupled to the outer shell, a curved battery disposed along a first side of the ring-shaped device, and a flexible printed circuit assembly coupled to the curved battery and disposed along a second side of the ring shaped device.

Abstract: An apparatus includes a radio frequency (RF) feed and an extruded member made of metal and coupled to the RF feed. The extruded member includes a first surface that includes a first slot having a first width and a first length, and a second slot having a second width and a second length. The second width is at least 1.2 times greater than the first width. The second slot intersects the first slot at an angle with respect to the first slot that is between 70 and 110 degrees.

Abstract: A groundless radio frequency (RF) test probe comprises a first connector to receive a signal from a system under test and a second connector to present the signal as an output. The probe further comprises an antenna array coupled between the first connector and the second connector, the antenna array to couple the signal from the first connector to the second connector, wherein the antenna pair is impedance matched with the system under test. The probe does not have a physical ground connection with the system under test.

Abstract: A system includes a platform including a first mounting component and a second mounting component, the platform being secured to an external surface of a structure via the second mounting component, a first network device coupled to the first mounting component, the first network device being part of a first network, and a second network device coupled to a surface of the platform and communicably coupled to the first network device. The system may further include an energy source component configured to provide power to the first network device, wherein the second network device is configured to receive data from the first network device and provide the data to one or more client devices located within the structure.

Abstract: Systems, devices, methods, computer-readable media, techniques, and methodologies are disclosed for optimizing radio frequency configuration of a user device for better power management and faster time to first fix. The radio frequency configuration of user devices may be optimized based on user input analysis, machine learning, or crowd sourcing methodologies.

Abstract: Network hardware devices are organized in a wireless mesh network (WMN) including multiple home access node (HAN) relay devices located in a geographic area and separated from one another by a distance. To avoid an obstruction preventing terrestrial line-of-sight (LOS) communications, an aerial reflector is deployed for terrestrial non-line-of-sight (NLOS) communications between first and second HAN relay devices. The aerial reflector device is positioned at an aerial location above a first terrestrial location of the first HAN relay device and a second terrestrial location of the second HAN relay device. The aerial reflector device includes a reflective surface that is positioned and oriented to provide terrestrial NLOS communications between a radio of the first HAN relay device and a radio of the second HAN relay device.

Abstract: Antenna structures and methods of operating the same are described. One apparatus includes a radio frequency (RF) circuitry, a housing, an antenna structure, and multi-connector switching circuitry. The RF circuitry includes a first RF feed for a first frequency and a second RF feed for a second frequency. The housing includes a first strip element disposed at a periphery of the housing, where the first strip element is physically separated from the housing by a first cutout in the housing. The antenna structure includes the first strip element coupled to a first multi-connector switching circuitry by a first connector and a second connector. The first multi-connector switching circuitry coupled to the first RF feed and the second RF feed where the first switching circuit to connect the first strip element to the first RF feed in a first mode of the first multi-connector switching circuitry.

Abstract: Antenna structures and methods of operating the same are described. One apparatus includes a radio frequency (RF) circuitry, a housing, an antenna structure, and multi-connector switching circuitry. The RF circuitry includes a first RF feed for a first frequency and a second RF feed for a second frequency. The housing includes a first strip element disposed at a periphery of the housing, where the first strip element is physically separated from the housing by a first cutout in the housing. The antenna structure includes the first strip element with a first connector, a second connector, and a third connector coupled to the multi-connector switching circuitry. The multi-connector switching circuitry connects the first RF feed coupled to the first RF feed and the second RF feed where the first switching circuit to connect the first strip element to the first RF feed in a first mode of the first multi-connector switching circuitry.

Abstract: A plurality of UAVs may be operated in a fleet, each of the UAVs in the fleet being configured to work collectively to achieve one or more functions, such as to create a display or implement an antenna array. The fleet of UAVs may operate individually and/or may be coupled to one another to operate as a collective unit. In some embodiments, one or more UAVs in the fleet may operate individually, while two or more UAVs in the fleet may be connected to one another. In such embodiments, the individual UAVs and the connected UAVs may together comprise the fleet.

Abstract: Antenna structures and methods of operating the same are described. An antenna structure may include an antenna carrier, a first antenna disposed on the first antenna carrier and coupled to a first radio frequency (RF) feed, a second antenna disposed on the first antenna carrier and coupled to a second RF feed, a third antenna disposed on the first antenna carrier and coupled to a third RF feed, and a fourth antenna disposed on the first antenna carrier and coupled to a fourth RF feed. The first antenna and the second antenna may be located along a first axis of the antenna carrier that passes through a center of the antenna carrier. The third antenna and the fourth antenna may be located along a second axis of the antenna carrier that passes through a center of the antenna carrier.

Abstract: A processing device tracks a frequency hopping sequence implemented by a personal area network (PAN) transmitter in a user device and identifies a set of filter coefficients corresponding to a first frequency of a plurality of frequencies in the frequency hopping sequence, wherein the PAN transmitter is currently transmitting a PAN signal at the first frequency. The processing device configures a tunable notch filter with the set of filter coefficients to cause the filter to remove at least a portion of a PAN component at the current frequency from a combined signal received at a wireless local area network (WLAN) receiver in the user device, the combined signal comprising a WLAN component attributable to a received WLAN signal and the PAN component attributable to the PAN signal.

Abstract: This disclosure describes a power unmanned aerial vehicle (UAV) that may generate a current from a conductor of an overhead power line carrying an AC power signal. The power UAV has a receptor that includes a secondary coil. Current is generated by the secondary coil of the receptor from magnetic fields emanating from the overhead power lines while the power UAV is flying. The generated current may be used to fly the power UAV, recharge an energy storage device of the power UAV, or be provided to another UAV. In various implementations, while the power UAV is flying, the power UAV may receive another UAV, recharge the other UAV, and then release the UAV to resume flying. In various implementations, the power UAV may also monitor characteristics of the power delivery system.