Abstract: Devices and methods for a detection system and heterodyne mixer having a local oscillator (LO) input, a radio frequency (RF) input, an intermediate frequency (IF) output, and a suspended waveguide structure that has a quartz substrate and patterned metal transmission line with a plurality of suppression slots.

Abstract: An electronic device according to an embodiment includes a housing including at least one opening; a support member in the housing; a display disposed on the support member; a first printed circuit board including a plurality of layers; a first wireless communication circuit disposed on a first surface of the first printed circuit board; a feeding structure on another surface of the first printed circuit board electrically connected to the first wireless communication circuit; and a waveguide configured to transmit a signal provided from the first wireless communication circuit to an outside of the housing, and the waveguide extends along one surface of the support member from the feeding structure. Other embodiments are possible.

Abstract: A method and apparatus are provided for directional communication systems in tactical environments, utilizing frequency-hopping signals to enhance low-probability-of-intercept, -detection, and -geolocation (LPI/LPD/LPG) performance; along with anti-jamming (AJ) performance, multiple access, and performance in multipath channels. Because frequency-hopping signals vary their radio frequency from dwell-to-dwell, this prevents conventional angle-of-arrival (AOA) estimation based on phase-differences. This disclosure presents a technique for AOA estimation for frequency-hopping signals with techniques for combining phase-difference measurements from multiple frequency-hopping dwells to achieve high-performance AOA estimation.

Abstract: Provided are a power amplification apparatus and a transmitter. The power amplification apparatus includes power amplification modules each including a voltage output unit and a power amplification unit; the voltage output unit outputs a first voltage signal (VIN_A) and a second voltage signal (VIN_B). The power amplification unit includes a selector (MUX), a radio frequency processing circuit, and a first switch transistor (M1), the radio frequency processing circuit processes a baseband signal to output a first radio frequency signal to a source of the first switch transistor (M1), and the selector (MUX) is configured to correspondingly strobe the first voltage signal (VIN_A) or the second voltage signal (VIN_B) according to an operating state of the first switch transistor (M1).

Abstract: A phased-array antenna system includes a substrate and a plurality of sub-arrays. Each sub-array comprises an array of patch antennas arranged on a first major surface of the substrate; a plurality of beamformer devices coupled to the array of patch antennas; a multi-channel up-down converter (UDC) and a combiner-splitter coupled to the multi-channel UDC. The combiner-splitter is configured to split a signal provided by the UDC and provide the signal to each of the plurality of beamformers and/or to combine signal provided by the plurality of beamformers and to provide the combined signal to the UDC. Each sub-array also includes an integrated device comprising the multi-channel UDC and the combiner-splitter. The integrated device and the plurality of beamformer devices is arranged on a second major surface of the substrate opposite the first major surface. The integrated device is arranged between at least two beamformer devices.

Abstract: A receiver includes: an analog front end (AFE) circuit to receive and process an incoming radio frequency (RF) signal comprising a packet; an analog-to-digital converter (ADC) to receive and digitize the processed incoming RF signal into a digital signal; a packet detector to detect the packet; an estimation circuit to determine a carrier frequency offset (CFO) estimate based at least in part on a preamble of the packet; an averager to determine a CFO average value for a plurality of packets communicated between a device pair combination of the receiver and a transmitter; and a compensation circuit to compensate for CFO between the device pair combination based at least in part on the CFO average value.

Abstract: A filter apparatus includes a dielectric substrate, input and output terminals, a ground terminal, a common electrode, and first to fourth resonators. Each resonator is connected to the common electrode and the ground terminal. Third and fourth resonators are between first and second resonators. Each resonator includes a capacitor and first and second vias connected to the common electrode. The first via is connected to the ground terminal with the capacitor interposed therebetween. The second via is directly connected to the ground terminal. In the common electrode, a direction from the first via to the second via in the first resonator is opposite to a direction from the first via to the second via in the second resonator. In third and fourth resonators, a shortest path along the common electrode between the first vias intersects with a shortest path along the common electrode between the second vias.

Abstract: Embodiments of the present disclosure provide methods and apparatus for power control. A method at a network node comprises determining a value of power back-off for a first wireless device based on at least one of a number of wireless devices including the first wireless device, wherein the wireless devices including the first wireless device are co-scheduled by the network node and an estimated max power increase in an overlap area where two or more beams are to be overlapped, wherein one of the two or more beams is for the first wireless device. The method further comprises transmitting a message or data over the beam for the first wireless device, wherein an output power of the beam for the first wireless device is controlled based on the value of power back-off for the first wireless device.

Abstract: A mounting base (14) is fixed to an antenna (13) or an antenna bracket (15) for supporting the antenna (13). A baseband unit (11) and an RF unit (12) are fixed to the mounting base (14). The baseband unit (11) fixed to the mounting base (14) is disposed to face a back part (132) of the antenna (13) and to form a space between the back part (132) and the first enclosure (111). The RF unit (12) fixed to the mounting base (14) is disposed in the space formed between the back part (132) of the antenna (13) and the baseband unit (11) and is coupled to a waveguide flange (132) of the antenna (13). Thus, for example, in a configuration of a point-to-point wireless apparatus in which an RF unit and a baseband unit are separated, restrictions on installation space of the apparatus can be facilitated.

Abstract: An asymmetrical power amplifier circuit is provided. The asymmetrical power amplifier circuit includes a carrier amplifier and a peak amplifier. The carrier amplifier is always active to amplify a radio frequency (RF) to a carrier output power, while the peak amplifier is only active to amplify the RF signal to a peak output power when a time-variant output power of the RF signal is higher than a predefined power threshold. The RF signal in the carrier output power is summed with the RF signal in the peak output power to thereby output the amplified RF signal in the time-variant output power. Unlike a conventional symmetrical power amplifier, the carrier output power and the peak output power are different at a peak of the time-variant output power. As such, the carrier amplifier and the peak amplifier can both operate with optimal efficiency based on a same modulated voltage.

Abstract: Disclosed is a technology for performing, in an electronic apparatus included in a central station, an uplink- or downlink-related operation by allocating a transmission power intensity based on a transmission and reception capability of a terrestrial terminal.

Abstract: Embodiments of the present disclosure provide methods and apparatus for power control. A method at a network node comprises determining a value of power back-off for a first wireless device based on at least one of a number of wireless devices including the first wireless device, wherein the wireless devices including the first wireless device are co-scheduled by the network node and an estimated max power increase in an overlap area where two or more beams are to be overlapped, wherein one of the two or more beams is for the first wireless device. The method further comprises transmitting a message or data over the beam for the first wireless device, wherein an output power of the beam for the first wireless device is controlled based on the value of power back-off for the first wireless device.

Abstract: A radio frequency (RF) signal strength detection technique is disclosed with a received signal strength indicator (RSSI) circuit, which can be deployed in an internet-of-things (IoT) network. The RSSI circuit is based on a direct conversion of RF to digital code indicating the signal strength. The direct conversion is achieved by the repeated switching of a rectifier's output voltage using an ultra-low power comparator. A 5-bit programmable feedback circuit can be used to correct detection inaccuracies. The RSSI circuit can be implemented in a 65-nm CMOS process and consumes 15 nW power. It can have a linear dynamic range of 26 dB and exhibit an error of ±0.5 dB with a wide bandwidth of 500 MHz. The technique has been verified with simulation and measurement results. The high detection accuracy with ultra-low power consumption of the proposed RSSI circuit is favorable for IoT applications including, e.g., biomedical, localization, and other low-power applications.

Abstract: Techniques are described for an antenna (e.g., an over the air (OTA) antenna) to be intelligently configured so as to adjust itself according to dynamic parameters, such as weather changes. Mechanisms are described that enable the end user to set preferences data (e.g., preferred channels) so that the OTA antenna automatically adjusts its placement to satisfy these preferences (e.g., to catch some preferred channels and with the highest quality available). Also described are techniques that include artificial intelligence (AI) and/or machine learning (ML) for learning the end user's patterns (e.g., patterns of viewership) and, subsequently, automatically adjusting the OTA antenna's position in accordance with the learned patterns. For example, the system may steer the OTA antenna to catch the best signal strength of a favorite channel of an end user, so that the end user can watch that channel with the highest quality, without any hassles, and at any time.

Abstract: Disclosed herein is a portable electronic accessory. The accessory has a body and a housing covering configured to attach to a portion of a human body or another external apparatus. The housing includes a satellite modem for (i) converting digital data received from a mobile device into first radio signals for transmission to a satellite, and (ii) converting second radio signals received from the satellite into digital data for the mobile device. The first and second radio signals are within a corresponding frequency band of the satellite. A wireless communication module supports two-way communications with the mobile device. A power source powers the satellite modem and the wireless communication module. Multiple antenna elements are coupled to the satellite modem that (i) radiate the first radio signals and (ii) receive the second radio signals. The multiple antenna elements each have a radiating surface facing an external face of the housing.

Abstract: A system and method for updating location-based group in network by location management server are provided. The method includes receiving a location area monitoring subscription request from vertical application layer (VAL) server to subscribe for notification for at least one vehicle-to-everything (V2X) user equipment (UE) moving in or moving out of a specific location area associated with a group, sending a location area monitoring subscription response to the VAL server in response to successful authorization of the VAL server, detecting at least one V2X UE moving in or moving out of the specific location area associated with the group based on the subscription, and sending a location area monitoring notification to the VAL server including the triggering event and information about the at least one V2X UE moving in or moving out of specific location area associated with group.

Abstract: A reception apparatus includes a reception circuit configured to receive reception signals, and a control circuit configured to control the reception signals to be input to the reception circuit by executing a feedback control according to a current consumption of the reception circuit.

Abstract: An electronic device according to an example embodiment includes: a switch die including a first portion transmission path and a first portion reception path, the first portion transmission path being connected in parallel to a transmission switch, and the first portion reception path being connected in parallel to a reception switch; a first connecting unit comprising a conductive material connected to the first portion transmission path and a second connecting unit comprising a conductive material connected to the first portion reception path; and a radio unit (RU) board including a second portion transmission path connected to the first connecting unit and a second portion reception path connected to the second connecting unit.

Abstract: An electronic device is described. This electronic device may include a communication circuit (such as an integrated circuit) that combines an interrogator and a transponder. Notably, the communication circuit may dynamically and temporally interleave an interrogator or the transponder transmission with a transponder response to a second interrogator or the second transponder transmission associated with a second electronic device. Moreover, the electronic device may include or may be selectively electrically coupled to at least an omnidirectional antenna that is used for bidirectional communication, such as: transmitting the interrogator or the transponder transmission (or message), receiving the second interrogator or the second transponder transmission (or message), and/or transmitting the transponder response to the second interrogator or the second transponder transmission.

Abstract: In one embodiment, a system for allocating clients between radios of an access point is disclosed. The system includes a first antenna coupled to a first radio, a second antenna coupled to a second radio, and a monitoring radio coupled to the first antenna and second antenna. The system includes computer-readable instructions that cause the system to receive at the monitoring radio, a first client attribute from each of a plurality of first client devices, and a second client attribute from each of a plurality of second client devices, and provide each aforementioned attribute to an optimization function. The system determines, with the optimization function, that one of the first radio and second radio will optimize performance for at least one device of the plurality of first client devices and second client devices and steer the at least one device accordingly.