Abstract: An antenna apparatus includes a first radiating patch with slots and a feed module. There are a plurality of feed modules in correspondence with the slots. The feed module includes a ground component and a feed component. The ground component includes a first conductor patch, a second conductor patch, and a conductor column. The feed component includes a second radiating patch and a first feed member, the second radiating patch and the second conductor patch are spaced from each other. When the foregoing structure is used, integration of an antenna radio frequency system can be improved.

Abstract: An assistance system modifies an operation of a vehicle component based on a Vehicle-to-Everything (V2X) communication. A method includes receiving, by a remote vehicle, a request message inquiring what additional identifying information of an ego vehicle the remote vehicle requests so that the remote vehicle has a capacity to identify the ego vehicle as a transmitter of a V2X message. The method includes transmitting a response message including response data that describes the additional identifying information of the ego vehicle that provides the remote vehicle with the capacity to identify the ego vehicle as the transmitter of the V2X message when the ego vehicle is among a plurality of vehicles. The method includes receiving the V2X message that includes assistance data describing the additional identifying information. The method includes modifying the operation of the vehicle component of the remote vehicle based on the assistance data.

Abstract: A waveguide probe structure, a calibration device for an antenna array and a calibration method for an antenna array are provided. The waveguide probe structure includes a waveguide coaxial converter, a tapered waveguide and a first straight waveguide. The waveguide coaxial converter is configured to transmit and receive two orthogonal linearly-polarized signals; the tapered waveguide includes a first waveguide cavity including a first waveguide port and a second waveguide port, the first waveguide port is connected to the waveguide coaxial converter, the second waveguide port is connected to the first straight waveguide, and a size of a cross section of the first waveguide cavity increases monotonically in a direction from the first waveguide port to the second waveguide port; the first straight waveguide includes a second waveguide cavity, a size of a cross section of the second waveguide cavity is equal to a size of the second waveguide port.

Abstract: A phase calibration method for a phased array antenna is provided. The method includes: sequentially calibrating M×N antenna units based on a pre-obtained test voltage set including first test voltages; sequentially loading the first test voltages to the antenna unit in the ith row and the jth column, and acquiring phase and amplitude information of a microwave signal radiated by the antenna unit every time one first test voltage is loaded; acquiring first array vectors through analysis based on the phase and amplitude information of the acquired microwave signals of the antenna unit under different first test voltages; obtaining a calibration response vector of the antenna unit under each first test voltage in the test voltage set through a first preset algorithm based on the first array vector, and determining a target voltage-phase curve corresponding to the antenna unit in the ith row and the jth column.

Abstract: An antenna and an electronic device are provided. The antenna includes a phase shifting unit, a reference electrode layer, and an antenna substrate; the phase shifting unit includes at least one phase shifter, each includes a first transmission structure, a second transmission structure, and a phase shifting structure therebetween; the reference electrode layer is provided with at least one and second first openings; the antenna substrate includes a first dielectric substrate, and a feed structure and at least one first radiation portion on a side of the first dielectric substrate away from the reference electrode layer; the feed structure includes at least one first and second feed ports; for each phase shifter, the first transmission structure is electrically connected to a corresponding second feed port through a corresponding first opening; and the second transmission structure is electrically connected to a corresponding first radiation portion through a corresponding second opening.

Abstract: The present invention discloses a millimeter-wave dual circularly polarized lens antenna and electronic equipment. The antenna includes a broadband circularly polarized planar feed source array and a dual circularly polarized planar lens. In the planar feed source array, a double-layer stacked patch is used at the same time to achieve broadband circular polarization, and a sequentially rotating feed structure is used to further expand the bandwidth. In the planar lens, a miniaturized stacked patch and a microstrip true-time-delayed phase-shifting structure are used to obtain the independent regulation and control of the left-handed and right-handed circularly polarized wave transmissive phases in a relatively wide frequency band.

Abstract: Disclosed in the present invention are a method and system for evaluating a fractal dimension of particle matter in a dispersing system. The method includes: setting that distribution of a particle radius r of particle matter in a dispersing system obeys logarithmic normal distribution lnr˜N(?, ?2) with an expectation ? and a standard deviation ?, and determining the value of the standard deviation ?; and evaluating a fractal dimension Dƒ of the dispersing system on the basis of the standard deviation ?, an evaluation formula being: Dƒ=1/?. The present invention provides the formula for evaluating the fractal dimension of particle distribution in a dispersing system. When the formula is used to calculate a fractal dimension, only particle radius distribution of particle matter needs to be measured, and no geometrical morphology feature parameter of the particle matter needs to be measured. Factors such as particle morphology and the like do not affect the fractal dimension.

Abstract: A dual-frequency and dual-circularly-polarized transmit-array antenna with independently controllable beams includes a planar broadband circularly polarized feed array and a planar transmit-array, the planar broadband circularly polarized feed array being placed near a focal plane of the planar transmit-array. The planar broadband circularly polarized feed array includes K-band left/right-handed circularly polarized feeds and Ka-band left/right-handed circularly polarized feeds that are integrated in the same plane. The planar transmit-array includes K-band and Ka-band dual-circularly-polarized phase shifting cells that are periodically staggered in a shared-aperture manner and based on an architecture of receiving antenna-phase shifting stripline-transmitting antenna.

Abstract: A compact dual-band triple-polarized antenna based on shielded mushroom structures includes a vertically-polarized radiator and a horizontally-polarized radiator. Two parts are fixedly connected in a disc-shaped structure. The vertically-polarized radiator and the horizontally-polarized radiator are both multilayer structures. Each multilayer structure includes a plurality of concentric circles, and the plurality of concentric circles include a plurality of dielectric substrates. The vertically-polarized radiator and horizontally-polarized radiator each include a plurality of shielded mushroom cell structures. Each shielded mushroom cell structure includes at least three metal layers and a metallic shorting pin, and the metallic shorting pin connects at least two of the at least three metal layers.

Abstract: The present invention discloses a millimeter-wave dual circularly polarized lens antenna and electronic equipment. The antenna includes a broadband circularly polarized planar feed source array and a dual circularly polarized planar lens. In the planar feed source array, a double-layer stacked patch is used at the same time to achieve broadband circular polarization, and a sequentially rotating feed structure is used to further expand the bandwidth. In the planar lens, a miniaturized stacked patch and a microstrip true-time-delayed phase-shifting structure are used to obtain the independent regulation and control of the left-handed and right-handed circularly polarized wave transmissive phases in a relatively wide frequency band.

Abstract: The disclosure includes embodiments for providing a vehicle risk evaluation and a modification for an onboard system of a vehicle to improve the operation of the onboard system. In some embodiments, a method includes generating a digital twin of a vehicle. The method includes receiving digital data recorded by a sensor and describing a condition of the vehicle as it exists in a real-world and a behavior of the vehicle as operated in the real-world. The method includes updating the digital twin of the vehicle based on the digital data so that the digital twin is consistent with the condition and the behavior.

Abstract: A compact dual-band triple-polarized antenna based on shielded mushroom structures includes a vertically-polarized radiator and a horizontally-polarized radiator. Two parts are fixedly connected in a disc-shaped structure. The vertically-polarized radiator and the horizontally-polarized radiator are both multilayer structures. Each multilayer structure includes a plurality of concentric circles, and the plurality of concentric circles include a plurality of dielectric substrates. The vertically-polarized radiator and horizontally-polarized radiator each include a plurality of shielded mushroom cell structures. Each shielded mushroom cell structure includes at least three metal layers and a metallic shorting pin, and the metallic shorting pin connects at least two of the at least three metal layers.

Abstract: A Barley stripe mosaic virus-based gene editing vector system, comprising artificial plasmids separately containing Barley stripe mosaic virus RNA?, RNA?, and RNA?. The required sgRNA sequence is integrated in RNA? or RNA?. The Barley stripe mosaic virus-based gene editing vector system can perform efficient gene editing on genomes of dicotyledons such as Nicotiana benthamiana and monocotyledons such as wheat and maize.

Abstract: The disclosure includes embodiments for managing a flow of traffic through an intersection. In some embodiments, a method for a roadside device proximate to the intersection of a roadway includes retrieving twin data describing one or more digital behavioral twins of a vehicle present in a vicinity of the intersection. The method includes retrieving sensor data describing a driving context of the vehicle. The method includes modifying an operation of an Advanced Driver Assistance System (ADAS) of the vehicle to achieve managing the flow of traffic including the vehicle through the intersection based on the driving context and the one or more digital behavioral twins of the vehicle to improve safety and traffic efficiency within an intersection range.

Abstract: The disclosure describes embodiments for modifying an operation of a vehicle component based on a Vehicle-to-Everything (V2X) communication. In some embodiments, a method includes receiving, by a V2X receiver, a V2X message including context data that describes a context of a V2X transmitter in an environment, wherein the V2X receiver is not sufficiently able to identify the V2X transmitter as an originator of the V2X message within the environment. The method includes determining, by the V2X receiver, digital data describing an identity of the V2X transmitter as the originator of the V2X message within the environment based on the context data. The method includes modifying the operation of the vehicle component of the V2X receiver based on the digital data describing the identity of the V2X transmitter. The vehicle component includes, for example, one or more of an autonomous driving system and an Advanced Driver Assistance System (ADAS system).

Abstract: The disclosure includes embodiments for reserving an infrastructure resource on an infrastructure device. In some embodiments, a method includes monitoring an execution status of a reservation result on the infrastructure device. The reservation result describes a reservation of the infrastructure resource on the infrastructure device for providing a V2I service. The method includes receiving feedback data describing the execution status of the reservation result from the infrastructure device. The method includes modifying one or more reservation criteria based on the feedback data. The one or more reservation criteria are used to create the reservation result. The method includes modifying the reservation result based on the one or more reservation criteria so that a shortage or an excess of the infrastructure resource for execution of the V2I service is avoided. The avoidance of the shortage or the excess improves over time as more feedback data is received.

Abstract: The disclosure includes embodiments for a digital behavioral twin for collision avoidance. In some embodiments, a method includes recording digital data describing a driving context and a driving behavior of a remote vehicle and an ego vehicle in this driving context. In some embodiments, one or more of the remote vehicle and the ego vehicle is a connected vehicle. The method includes determining a risk of a collision involving one or more of the remote vehicle and the ego vehicle based on a first digital behavioral twin of the remote vehicle, a second digital behavioral twin of the ego vehicle and the digital data. The method includes modifying an operation of the ego vehicle based on the risk.

Abstract: The disclosure includes embodiments for reserving an infrastructure resource on an infrastructure device. In some embodiments, a method includes monitoring an execution status of a reservation result on the infrastructure device. The reservation result describes a reservation of the infrastructure resource on the infrastructure device for providing a V2I service. The method includes receiving feedback data describing the execution status of the reservation result from the infrastructure device. The method includes modifying one or more reservation criteria based on the feedback data. The one or more reservation criteria are used to create the reservation result. The method includes modifying the reservation result based on the one or more reservation criteria so that a shortage or an excess of the infrastructure resource for execution of the V2I service is avoided. The avoidance of the shortage or the excess improves over time as more feedback data is received.

Abstract: The disclosure includes embodiments for managing a flow of traffic through an intersection. In some embodiments, a method for a roadside device proximate to the intersection of a roadway includes retrieving twin data describing one or more digital behavioral twins of a vehicle present in a vicinity of the intersection. The method includes retrieving sensor data describing a driving context of the vehicle. The method includes modifying an operation of an Advanced Driver Assistance System (ADAS) of the vehicle to achieve managing the flow of traffic including the vehicle through the intersection based on the driving context and the one or more digital behavioral twins of the vehicle to improve safety and traffic efficiency within an intersection range.

Abstract: The disclosure describes embodiments for modifying an operation of a vehicle component based on a Vehicle-to-Everything (V2X) communication. In some embodiments, a method includes receiving, by a remote vehicle, a request message inquiring what additional identifying information of an ego vehicle the remote vehicle requests so that the remote vehicle has a capacity to identify the ego vehicle as a transmitter of a V2X message. The method includes transmitting a response message including response data that describes the additional identifying information of the ego vehicle that provides the remote vehicle with the capacity to identify the ego vehicle as the transmitter of the V2X message when the ego vehicle is among a plurality of vehicles. The method includes receiving the V2X message that includes assistance data describing the additional identifying information. The method includes modifying the operation of the vehicle component of the remote vehicle based on the assistance data.