Abstract: An aircraft includes a fuselage, wings coupled to the fuselage, and a transceiver. The aircraft further includes a plurality of planar phased array antennas coupled to the transceiver and fixedly attached to the fuselage or to at least one of the wings. The plurality of planar phased array antennas include a first planar phased array antenna having a first normal vector and a second planar phased array antenna having a second normal vector. The first normal vector is not parallel to the second normal vector.

Abstract: Described herein are variable gain amplifiers that selectively provide variable or tailored impedances at a degeneration block and/or feedback block depending at least in part on a gain mode of the variable gain amplifier. This advantageously reduces or eliminates performance penalties in one or more gain modes. The variable impedances can be configured to improve linearity of the amplification process in targeted gain modes. The variable gain amplifier can be configured to provide a low-loss bypass mode in a low gain mode to improve signal quality.

Abstract: A packaged module for use in a wireless communication device has a substrate supporting an integrated circuit die that includes at least a microprocessor and radio frequency receiver circuitry and a stacked filter assembly configured as a filter circuit that is in communication with the radio frequency receiver circuitry. The stacked filter assembly includes a plurality of passive components, where each passive component is packaged as a surface mount device. At least one passive component is in direct communication with the substrate and at least another passive component is supported above the substrate by the at least one passive component that is in the direct communication with the substrate.

Abstract: A protective case for use with a mobile device is provided. The protective case includes an attachment device that is configured to couple to one of a handle assembly, a battery source, and a fascia plate when a void is provided on the protective case. When the handle assembly is coupled to the protective case, the handle assembly is configured to pivot about the protective case for moving the handle assembly from a closed configuration to an open configuration. When the battery source is coupled to the protective case, the battery source is configured to charge the mobile device, and, when the fascia plate is coupled to the protective case, the fascia plate is configured to fill the void, that is otherwise filled by one of the handle assembly and the battery source.

Abstract: One aspect is a circuit for tuning a resonance frequency of an electrically small antenna and directly exciting the electrically small antenna. The circuit includes a first source configured for providing a constant voltage. The circuit also includes an antenna and a switched capacitor configured for being alternatively alternately coupled to the first source to be charged thereby and to the antenna for exciting the antenna. Another aspect is a transmitter for transmitting a wireless signal using an antenna without using a variable voltage source to excite the antenna. The transmitter includes a first source configured for providing a constant voltage. The transmitter further includes an antenna and a switched capacitor configured for being alternately coupled to the first source to be charged thereby and to the antenna for exciting the antenna and for tuning a resonance frequency of the antenna.

Abstract: Automatic Gain Control (AGC) system for multi-channel signals attenuates an incoming multi-channel signal by providing a gain. The system further adjusts each individual channel, of the multi-channel signal, by supplying a second gain if needed. The AGC system is designed to ensure a received signal power is at an optimal level for analog to digital conversion or any other form of signal processing. The system also enables elimination of mid-packet gain adjustments.

Abstract: A method, an apparatus, and a non-transitory computer-readable medium for wireless communication are provided. The apparatus, which is associated with a first cell, may receive communication information of a second cell, wherein the communication information is associated with a transmission, of a base station associated with the second cell, to an ultra-reliable low latency communication (URLLC) user equipment (UE) located in the second cell; and/or reduce transmission power of the apparatus associated with the first cell, in at least one resource, to reduce interference with the transmission by the base station to the URLLC UE.

Abstract: In certain aspects, a method for communications comprises outputting a first portion of a signal to a first one of a plurality of RF modules for transmission, determining a throughput of the first one of the plurality of RF modules during thermal throttling of the first one of the plurality of RF modules, comparing the determined throughput of the first one of the plurality of RF modules with a throughput of a second one of the plurality of RF modules, and outputting a second portion of the signal to the second one of the plurality of RF modules for transmission if the throughput of the second one of the plurality of RF modules is higher than the determined throughput of the first one of the plurality of RF modules.

Abstract: This disclosure describes systems, methods, and devices related to awake window (AW) protection. A device may identify a beacon frame received from a first device. The device may identify an information element associated with a first awake window (AW) within the beacon frame. The device may suspend one or more first backoff timers for a duration of the first AW. The device may associate a second backoff timer with a management frame.

Abstract: An electrochromic (EC) switch is disclosed and claimed. The EC switch includes an EC region and an electrolyte region separated by a dielectric region on a ground plane. A microstrip configured to transmit an RF signal is adjacent to and in electrical contact with the EC region. A conductive pad is adjacent to the electrolyte region and a bias line couples the microstrip to the electrolyte region. Voltages applied between the ground plane and the conductive pad and between the conductive pad and the bias line switch the microstrip. The EC switch may be incorporated within a wide variety of RF devices, for example, attenuators, phase shifters and antennas.

Abstract: A method and network equipment for controlling power amplification are disclosed. The method for controlling power amplification includes outputting a voltage signal according to the state of network equipment. When the network equipment is in an idle state, at least one power amplifier transistor is switched off according to a voltage signal.

Abstract: There is provided a wireless analysis apparatus including: a memory unit configured to store information of electric power distribution indicating a temporal change of a frequency spectrum; and a computing unit configured to perform a procedure including: generating a plurality of divided regions having predetermined band widths by dividing the electric power distribution, calculating a temporal change amount of electric power with regard to each of the divided regions, detecting a rising portion and a falling portion of the electric power on the basis of the calculated temporal change amount, and identifying an individual signal component in the electric power distribution on the basis of the positions of the rising portion and the falling portion in the divided regions.

Abstract: Disclosed is a beamforming method for microwave power transmission. The beamforming method includes sending, by a transmitter, microwaves to each training slot based on a random phase through antennas, receiving from a receiver, by the transmitter, a power measurement value for each of the training slots, estimating, by the transmitter, a channel using the received power measurement value, and determining, by the transmitter, beamforming weight based on information about the estimated channel.

Abstract: The disclosed technology relates to antenna configurations for wireless power transmission and supplemental visual signals. In some implementations, the disclosed technology includes a wireless power transmitter with boards that have multiple antennas physically coupled to the board. In some implementations, the antennas boards are arranged in a polygonal configuration (e.g., star shape). Additionally, in some implementations, the antennas can have different polarization configurations.

Abstract: A method of improving wireless communication of an apparatus includes detecting a wireless signal from a wireless communication device at a first signal strength level, detecting the wireless signal increasing from the first strength level to exceed a threshold level associated with the wireless communication device, requesting, by the apparatus, an input from a user of the apparatus when the signal strength exceeds a threshold level associated with the wireless communication device, wherein the input indicates whether the apparatus should cause an action to occur at the wireless communication device, adjusting, at the apparatus, the threshold level associated with the wireless communication device after receiving the input, and automatically transmitting a signal from the apparatus to the wireless communication device to cause the wireless communication device to perform the action when the apparatus detects the wireless signal from the wireless communication device has exceeded the adjusted threshold level.

Abstract: A communication system 20 includes a short-range wireless communication device 45 installed in a vehicle 10. The short-range wireless communication device 45 is a device capable of performing short-range wireless communication with a portable communication terminal 46. The short-range wireless communication device 45 is provided in the vicinity of a surface 12c of an instrument panel 12. A first groove portion 35 and a second groove portion 36 are formed in the surface 12c of the instrument panel 12, in the vicinity of the short-range wireless communication device 45.

Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.

Abstract: A system and method that enhances spoken utterances by capturing one or more microphone signals. The system and method estimates a plurality of echo paths from each of the one or more microphone signals and synthesizes a speech reinforcement signal in response to and corresponding to the one or more microphone signals. The system and method concatenates portions of the synthesized reinforcement signal with the captured microphone signals and processes the captured microphone signals in response to the estimated plurality of echo paths.

Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.

Abstract: A circuit includes a main connector and a single-pole double-throw switch. A common contact of the main connector is used as a port of a main receiver, and a normally-closed contact of the main connector is used as a port of a main antenna. Furthermore, a normally-open contact of the main connector is used as a port of an external antenna, and a common contact of the single-pole double-throw switch is used as a port of a diversity receiver. Additionally, a normally-closed contact of the single-pole double-throw switch is used as port of a diversity antenna, and a normally-open contact of the single-pole double-throw switch is connected to the normally-closed contact of the main connector.