473 results about "Directional antenna" patented technology

The invention discloses an intelligent traceable hazardous waste management system based on RFID, particularly relates to the technical field of hazardous waste intelligent supervision, and is used for solving the problems of unreliable data acquisition, misreading and misreading and state updating delay caused by signal interference of an existing RFID system in a high-density hazardous waste storage scene. The method comprises the following steps: dynamically dividing warehouse sub-regions, distributing a unique grouping identification code, and combining a directional antenna array partition scanning technology to avoid signal crosstalk; by analyzing the multi-path phase fluctuation rate and the polarization direction offset, a main interference frequency band is dynamically identified by using a covariance decomposition algorithm, and the communication frequency is switched, so that the tag identification rate in a complex electromagnetic environment is improved; scheduling a target sub-region scanning process based on a warehouse-in and warehouse-out instruction, synchronously verifying a label state and an actual position, generating an operation link space-time atlas, actively tracing cross-region time logic contradictions and triggering full-disk scanning; and full-process accurate tracing of the hazardous waste container and complete data management and control in a high-density scene are realized.

The method focuses on the technical field of communication, and the communication connection problem under the cooperative operation scene of the unmanned vehicle and the unmanned aerial vehicle is accurately positioned. In practical application, communication connection is troubled by a complex environment, signals are prone to strong interference, the transmission distance is obviously limited, and double requirements of real-time performance and accuracy are difficult to consider in the aspect of data transmission characteristics during cooperative operation of the two. According to the invention, ZigBee, 5G, satellite communication modules and multi-mode communication modules are integrated, an adaptive protocol is optimized, channels are sensed in real time, the channels are selected and switched through an intelligent algorithm, signals are enhanced through directional antennas and beam forming, interference resistance is realized through adaptive filtering and error correction coding, and stability is guaranteed by means of link monitoring and a self-healing mechanism. According to the method, reliable interaction of data between the unmanned vehicle and the unmanned aerial vehicle in a complex environment can be ensured, and real-time and accurate transmission of monitoring data can be ensured even in case of strong electromagnetic interference or severe weather.

Aspects presented herein may enable a user equipment (UE) to perform angle-of-arrival (AoA) determination using non-ideal and non-directional antennas. In one aspect, a UE obtains an indication of a phase difference of arrival (PDoA) function related to the first user equipment (UE). The UE obtains a set of PDoA measurements associated with a second UE when the first UE is associated with a plurality of orientations. The UE computes, based on the PDoA function, the set of PDoA measurements, and the plurality of orientations of the first UE, a general function that is associated with a probability in which the second UE is at a set of relative directions compared to the first UE. The UE estimates, based on the computed general function, a relative direction of the second UE compared to the first UE, where the relative direction is included in the set of relative directions.

The invention provides a lightning trajectory data fusion detection based single-tree accurate early warning system for lightning fire, and relates to the technical field of meteorological disaster monitoring and early warning and forest lightning fire prevention and control. The lightning trajectory data fusion detection based single-tree accurate early warning system comprises an electromagnetic radiation receiving module which adopts an antenna array composed of at least four directional antennas to receive electromagnetic radiation signals generated by lightning, the antenna array is connected with a signal conditioning circuit, and the signal conditioning circuit is connected with the electromagnetic radiation receiving module. The signal conditioning circuit amplifies the received weak electromagnetic signal by 100-1000 times, processes the weak electromagnetic signal with a filtering bandwidth of 10 kHz to 1 MHz, and transmits the weak electromagnetic signal to a data acquisition card with a sampling frequency of 5-20 MS / s and a sampling precision of 12-16 bits. By integrating lightning electromagnetic radiation continuous sampling, infrared, visible light and ultraviolet multispectral tracking shooting and atmospheric electric field early warning multi-modal data, a lightning track is accurately detected, and by combining forest environment information, accurate early warning of a single tree where a lightning fire may occur is achieved.

The invention provides a communication resource scheduling method and system for a low-orbit satellite, and the method comprises the steps: transmitting a spot beam to a target region by the low-orbit satellite through a directional antenna, and starting to provide communication services for all target terminals in the coverage range of the spot beam; when the preset switching period is ended, the satellite resource control center determines a new low earth orbit satellite taking over the target area according to the real-time motion information of the low earth orbit satellite; controlling the new low-orbit satellite to adjust the pointing angle of the directional antenna so as to enable the spot beam emitted by the new low-orbit satellite to cover the target area; meanwhile, beam switching instructions are generated and sent to all target terminals in batches; and all the target terminals execute a beam switching action so as to continuously provide communication services for all the target terminals through the spot beams emitted by the new low-orbit satellites. According to the invention, unified beam switching of all user terminals in the target area is realized, the situation of high concurrency of switching instructions of a satellite resource control center when the number of users is large is avoided, and the communication response speed of the users is improved.

The invention provides a communication device, a communication method, a communication system, electronic equipment and a storage medium, which are applied to the technical field of communication and are used for solving the problem that the coverage range and the antenna gain of an existing intelligent antenna cannot meet the use requirements of different use environments. The communication device comprises a multiplexer and a plurality of antenna structures. The multiplexer comprises a common end and a plurality of selection ends. The common end of the multiplexer is coupled with one radio frequency channel, and the common end is used for being switched and conducted with different selection ends in the plurality of selection ends to form a plurality of paths. The multiple antenna structures comprise phased-array antennas, the multiple selection ends comprise first selection ends, and the phased-array antennas are coupled with the first selection ends. The plurality of antenna structures further comprise an omnidirectional antenna, the plurality of selection ends further comprise a second selection end, the omnidirectional antenna is coupled with the second selection end, and / or the plurality of antenna structures further comprise a directional antenna, the plurality of selection ends further comprise a third selection end, and the directional antenna is coupled with the third selection end.

The invention provides a satellite search method and device, electronic equipment, a storage medium and a program product, and relates to the technical field of communication. According to the method, under the condition that the terminal has no satellite ephemeris information or the ephemeris fails, the target search airspace of the satellite is accurately determined by acquiring the terminal position information and the satellite constellation configuration information, and efficient search is performed in the airspace by using the directional antenna, so that the satellite search time and computing resource consumption are remarkably reduced.

The invention provides a wide-range unmanned aerial vehicle sensing system and method based on a wireless relay technology, and relates to the technical field of unmanned aerial vehicle sensing. The system comprises a radio detection device and a wireless relay device deployed on the periphery of the radio detection device, the wireless relay device comprises a receiving antenna, a signal optimization unit and a broadband directional antenna, the receiving antenna is used for capturing radio signals transmitted by the unmanned aerial vehicle, the signal optimization unit is used for amplifying and processing the received signals, and the broadband directional antenna is used for receiving the radio signals transmitted by the unmanned aerial vehicle. The broadband directional antenna is used for re-transmitting a signal to the direction where the radio detection equipment is located; the radio detection device is used for passively receiving and decoding radio signals and capturing information of the unmanned aerial vehicle in real time, and the method comprises the steps of signal receiving and optimizing, signal redirection and transmission, signal decoding and analysis, information feedback and processing and the like. According to the invention, the unmanned aerial vehicle detection requirements of flakey areas such as airports with larger protection requirement ranges can be met, and low cost, low power consumption and high efficiency are ensured.

Omni-directional, horizontally polarized antennas are provided. According to one aspect, an omni-directional, horizontally polarized antenna includes a first reflector and a second reflector separated from the first reflector. Disposed between the first and second reflectors are a planar array of radially directed horizontally polarized antenna elements and a planar feed network configured to feed the antenna elements of the planar array. A coaxial feed structure configured to communicate electrical signals to or from the feed network is provided.

The invention discloses a terahertz-based full-spectrum sensing integrated system and method, and relates to the field of intelligent regulation and control, and the method comprises the steps: initializing a multi-spectrum terahertz source array, configuring a plurality of sensors to collect environment data, loading the environment data into an environment adaptation algorithm library, generating an optimization scheme, and adjusting the parameters of a multi-spectrum terahertz source; performing full-space scanning through a multi-directional antenna array, scanning and monitoring a target motion state in real time, and switching a tracking mode after the target motion state is stable to obtain a target position and a target trajectory; a terahertz source emission target is determined, multi-spectrum terahertz wave parameters are adjusted, a target area is focused, and echo signals are obtained; and extracting a plurality of pieces of feature information of the target, accurately positioning the target, and integrating the plurality of pieces of feature information to lock the target. According to the invention, through the introduction of the environment adaptation algorithm library, the intelligent adjustment of the multi-spectrum terahertz source parameters is realized, and the environment adaptation and the target detection, identification and tracking capabilities are improved.

The invention discloses a wellhead water content measuring method based on a double-frequency microwave directional antenna sensor, and the double-frequency microwave directional antenna sensor comprises two first microwave directional antennas, two second microwave directional antennas, an annular disc and a pipe body, the annular disc is annular, the annular disc is sleeved outside the pipe body and is fixedly installed with the pipe body, and the pipe body is fixedly installed on the annular disc. The two first microwave directional antennas are located above the annular disc, and the two second microwave directional antennas are located below the annular disc; the two sides of the pipe body in the radial direction are each provided with one first microwave directional antenna, and the two sides of the pipe body in the radial direction are each provided with one second microwave directional antenna. Dielectric constants and dielectric losses of oil and water are remarkably different, so that phase deviation occurs when a high-frequency microwave signal is propagated in an oil-water mixed medium, and the water content in oil-water two-phase flow is obtained by analyzing phase voltage signals with different frequencies through a double-frequency microwave directional antenna sensor.

The invention relates to the technical field of satellite navigation and wireless communication, and discloses an indoor positioning method and system based on feeder multiplexing Beidou double-frequency, and the method comprises the steps: receiving outdoor B1I and B2a signals through a high-gain Beidou double-frequency receiving antenna, carrying out the frequency separation and signal conditioning through a double-frequency separation filter, and carrying out the positioning of the B1I and B2a signals; and transmitting the B1I signal to an indoor distributed antenna for broadcasting through the existing communication feeder network, and transmitting the B2a signal to a central directional antenna to establish a time synchronization reference. A mobile terminal receives a dual-frequency signal, capturing and tracking are carried out through digital signal processing, and pseudo-range and carrier phase observation values are extracted. And performing pairing processing on observation data of the same antenna, calculating a dual-frequency pseudo-range difference value, eliminating system errors, and performing position calculation by adopting a weighted least square method and Kalman filtering. The method solves the problem that the traditional GPS signal cannot cover the indoor environment, and has a good application prospect in the scenes of underground commercial complexes, tunnels, parking lots and the like.

The invention relates to the field of high-speed rail communication equipment, in particular to an adjustable antenna support for high-speed rail construction of a communication base station iron tower, and the adjustable antenna support comprises a cylindrical tower which is arranged on one side of a rail, and the distance between the bottom end of the cylindrical tower and the rail is larger than the height of the cylindrical tower; the circumferential outer wall of the cylindrical tower is sleeved with a mounting pipe, and the mounting pipe slides along the outer wall of the cylindrical tower; a hoisting assembly is arranged at the top end of the cylindrical tower and connected with the top end of the mounting pipe; directional antennas are mounted on the circumferential outer wall of the mounting pipe; a rotation driving assembly is arranged between the installation pipe and the directional antenna, the installation end of the rotation driving assembly is arranged on the circumferential outer wall of the installation pipe, and the directional antenna is installed at the swing end of the rotation driving assembly. The directional antenna always faces the high-speed rail when the high-speed rail passes through the directional antenna, and the signal propagation quality of the high-speed rail communication base station is

The invention discloses an integrated sensing and communication system design method and system based on a flexible antenna array, and relates to the technical field of communication. According to the method, an ISAC system comprising a flexible antenna array FAA base station, a single-antenna user and a sensing target is constructed, and the FAA can adaptively adjust the shape in the horizontal direction. The base station can communicate with the User and perceive a target at the same time, and jointly communicate and perceive signals to obtain a channel vector and a target echo signal. The characteristics of the antenna are determined through omnidirectional and directional antenna modes, and the sensing performance is measured by using a sensing channel and a Cramer-Rao bound CRB (Cramer-Rao Boundary). An optimization problem is constructed with the goal of minimizing CRB and ensuring the minimum communication rate of a user, and an S lemma and a semi-definite relaxation SDR are used to convert a related design problem into a convex subproblem for solving, so that communication and perception collaborative optimization is realized. Through the flexible antenna array, the sensing and communication performance of the system is remarkably improved, and the resource utilization rate is improved.

The invention relates to an industrial wireless communication system and method. The system comprises terminal equipment used for executing specific operation or data acquisition in an industrial environment; the directional antenna wireless router serves as a data transmission relay in a network, is provided with a directional antenna and is used for covering and connecting the terminal equipment in a directional mode through wireless signals so as to achieve wireless transmission of data, and rapid deployment and flexible adjustment of the router are achieved by introducing the unmanned aerial vehicle technology and the scheme. The unmanned aerial vehicle can quickly fly to the target position, and the flight height and the antenna angle are adjusted according to actual requirements, so that the timeliness and the accuracy of network coverage are ensured. The flexibility is crucial to frequent changes of the positions and the number of the terminal devices in the industrial environment, and the adaptability and the stability of the network are improved.

The invention belongs to the technical field of wireless communication, and particularly discloses an interphone channel allocation optimization method and system based on signal intensity, and the method comprises the steps: collecting an actual interference signal of an engineering site, achieving the efficient recognition of a novel interference mode, and remarkably improving the communication reliability in a complex environment; the method comprises the following steps: respectively executing a first channel allocation strategy and a second channel allocation strategy by determining an interference source type of an application engineering site to realize accurate allocation of channel resources in different interference scenes; a first channel allocation strategy including full-band channel switching and directional antenna beam adjustment is adopted, so that the communication continuity and reliability in a complex interference environment are effectively improved; the active channel switching mechanism is triggered by calculating the path signal consumption factor in combination with the signal shielding body information, and then the second channel allocation strategy is realized according to the service type, so that the communication quality and efficiency in a dynamic environment can be improved.

A satellite communication method, including searching, by a terminal device, for at least one first satellite in a first range by using a first antenna, where the terminal device includes a first directional antenna and a second directional antenna, and the first directional antenna corresponds to first coverage, and the second directional antenna corresponds to second coverage. The first antenna is the first directional antenna and the first range is the first coverage, or the first antenna is the second directional antenna and the first range is the second coverage, or the first antenna is the first directional antenna and the second directional antenna and the first range is the first coverage and the second coverage.

The invention discloses a portable multi-band unmanned aerial vehicle interference method and system based on a directional antenna array, and belongs to the field of unmanned aerial vehicle countering. The invention discloses a portable multi-band unmanned aerial vehicle interference method and system based on a directional antenna array. The method comprises the following steps: detecting and tracking a multi-sensor fused target; generating a multi-band interference signal; multi-band signal interference based on a directional antenna array; the system comprises a detection and tracking module, a signal generation and processing module, a directional interference array module, a main control and interaction module and an integrated platform and support module. The problems that in the prior art, a high-speed maneuvering unmanned aerial vehicle is difficult to track, and a modern unmanned aerial vehicle using multiple communication frequency bands at the same time cannot be effectively handled are solved. The method is high in interference efficiency and long in acting distance, wide effectiveness of unmanned aerial vehicles of different models and different communication configurations is guaranteed, multi-band coverage is achieved, the beam switching speed reaches the millisecond level through electronic beam forming, and the capacity of coping with complex targets is high.

The utility model provides an anti-unmanned aerial vehicle antenna structure, which comprises an antenna housing, a reflecting plate, a plurality of radio frequency cable joints arranged in the antenna housing, a feed network, an antenna half-wave oscillator, a power divider, a coupler, a directional coupler, a directional antenna system, a control system and a power supply unit, wherein a plurality of radio frequency cable probes are connected with the antenna half-wave oscillator; comprising a 868MHz / 915MHz radio frequency cable joint, a 1.5 GHz radio frequency cable joint, a + 2.4 GHz radio frequency cable joint, a-2.4 Ghz radio frequency cable joint, a 5.8 GHz radio frequency cable joint and a 533MHz-6000 MHz radio frequency cable joint. The antenna half-wave oscillator comprises a T-shaped antenna, a symmetrical antenna, a ceramic antenna and an aluminum plate antenna; the power divider is connected with the symmetrical antenna; the coupler is connected with the T-shaped antenna; the directional coupler is connected with the ceramic antenna; the directional antenna system is connected with the control system. The antenna provided by the utility model is smaller in structure, improves the interference precision, reduces the energy consumption, enhances the anti-interference capability, and is higher in antenna gain.

The invention relates to a system for the teleoperated control of a ground-based passenger vehicle (1) comprising the ground-based passenger vehicle (1) and a control unit (2) arranged spatially separate from the passenger vehicle (1), wherein the passenger vehicle (1) can be controlled by an operator by means of control signals generated by the operator and transmitted from the control unit (2) to the passenger vehicle (1), wherein the passenger vehicle (1) has at least one camera (3), wherein the control unit (2) has a display device (4), wherein image data acquired by means of the camera (3) can be transmitted to the control unit (2) and displayed by means of the display device (4) for the operator to control the passenger vehicle (1), wherein the control signals and the image data can be wirelessly transmitted between a vehicle antenna system (AFS) of the passenger vehicle (1) and a transmission antenna system (AUS),wherein the control signals and the image data can be transmitted wirelessly and / or by wire between the transmission antenna system (AUS) and the control unit (2). The invention also relates to a method for the remote control of a ground-based passenger vehicle (1). An uninterrupted and interference-free transmission of control signals and image data between the passenger vehicle (1) and the control unit (2) is ensured, inter alia, by the vehicle antenna system (AFS) having a directional antenna (AF) with an adjustable viewing direction.

The invention discloses a Beidou pseudo satellite fusion positioning method and system in a tunnel. The method comprises the steps that a tunnel is divided into multiple sections of visible sub-areas, a relative coordinate system is established, Beidou signals are introduced into the tunnel through Beidou pseudo satellites, a common commercial receiver can still have the Beidou signal positioning capacity in the tunnel, meanwhile, according to the environment in the tunnel, a directional antenna is adopted, the multipath effect is reduced, and the positioning accuracy of the Beidou signals is improved. An infrared distance measuring device is arranged in a specific area, the vehicle driving direction and Doppler errors are judged, single pseudo satellite positioning is achieved through Doppler, and final coordinate output is achieved through the relation between relative coordinates and map coordinates.

The invention discloses 5g industrial communication wireless gateway equipment and method. The 5g industrial communication wireless gateway equipment comprises a gateway body, and a power interface, an SIM card interface and an Ethernet port are sequentially arranged on the front surface of the gateway body from left to right; the protection device comprises a protection seat, the front end of the protection seat is open, the gateway body is arranged on the inner side of the protection seat, the baffles are symmetrically arranged on the inner side face of the protection seat, the first rubber pads are arranged on the side surfaces of the baffles and can abut against the gateway body, and the reinforcing plate is rotationally arranged on the front surface of the protection seat. The through hole is formed in the reinforcing plate; the beneficial effects of the invention are that through the arrangement of the protection device, the damage of external collision to the gateway body can be effectively reduced, the anti-collision capability of the gateway equipment is improved, and the gateway equipment adapts to the complex environment of an industrial field; a 5g signal is received and enhanced through the directional antenna and the signal amplifier, so that the signal strength and the transmission efficiency can be effectively improved, and the influence of signal attenuation and interference on data communication is reduced.

The invention discloses an unmanned aerial vehicle cluster dynamic area coverage method based on deep reinforcement learning. The method comprises the following steps: constructing a multi-physical field coupling simulation environment comprising node motion, a directional antenna, a space channel and a radar detection model; based on the environment, converting a dynamic coverage problem form into a partially observable Markov decision process, a defined state, observation, action and reward mechanism, performing multi-agent training by adopting a centralized training decentralized execution framework, evaluating a joint action by using a global Critic network during training, and storing interactive experience by using an experience playback buffer area; based on a priority experience playback mechanism, according to a time sequence difference error and a reward value, an experience sampling probability is calculated, samples are extracted, Critic and Actor networks are updated in sequence, a decision model is deployed to an unmanned aerial vehicle cluster after training is completed, and each unmanned aerial vehicle executes an area coverage task in a distributed manner, so that efficient and low-risk communication coverage can be realized in a complex threat environment. The communication quality is improved; and the detected probability is reduced.

The invention relates to the technical field of information security, and discloses an intelligent AI portable secret-related place eavesdropping and photo-stealing detection device, which comprises a multi-mode signal fusion detection module, an integrated radio frequency signal sensor, an infrared imaging sensor and a sonic sensor, the self-adaptive frequency spectrum focusing system is used for dynamically adjusting the scanning frequency band and the resolution ratio; the AI drives an imaging optimization processor, and reconstructs a suspicious target image based on the deep neural network; and a lithium battery and a folding directional antenna array are arranged in the portable shell. An AI driving imaging optimization processor adopts a YOLOv5 and U-Net cascade neural network, an infrared image is super-resolved to 1280 * 960 pixels through a feature gradient accumulation resolution optimization formula, and in cooperation with resistance loss function training, detail reduction of a level pinhole lens is achieved, and a hidden target is accurately recognized.

The invention discloses a pre-planning cluster head pushing method for rapid establishment of a directional network of an unmanned aerial vehicle group, and the method comprises the steps: obtaining a potential candidate cluster first choice set through screening according to the comprehensive energy value of each unmanned aerial vehicle node, and obtaining a candidate cluster first choice set according to the single-beam coverage capability of a directional antenna; redundant unmanned aerial vehicle nodes covering the overlapping area in the potential cluster head candidate set are eliminated to obtain candidate cluster heads, then quantitative evaluation of network communication quality, energy state and topological stability is carried out on the candidate cluster heads, and the unmanned aerial vehicle node with the highest quantitative evaluation score is used as the cluster head; and the unmanned aerial vehicle node with the second highest quantitative evaluation score is used as a standby cluster head, so that the cluster head is determined timely and accurately, and the beam resource utilization rate is improved.

The invention belongs to the technical field of radio frequency thunder and lightning positioning, and particularly discloses a wind turbine generator lightning arresting detection method based on radio frequency electromagnetic detection. According to the invention, the initial layout of the directional antenna is planned through the signal-to-noise ratio, the elevation angle and the number of stations in a constrained manner, thereby overcoming the defects that the omnidirectional antenna is low in signal-to-noise ratio and is liable to be interfered in a wind power plant, and achieving the selective focusing of a target airspace and the collection of high-signal-to-noise-ratio data. And station distribution parameters are iteratively optimized by simulating lightning signals, so that the capability of monitoring lightning stroke areas of key components of the fan is enhanced. Time parameters are accurately extracted by using the high gain characteristic of the directional antenna, and high-precision measurement of the time difference of arrival is ensured in combination with a unified time base alignment technology. Finally, a high-resolution three-dimensional lightning stroke channel form is inversely generated based on a spherical propagation model, the problem of detection interference in a complex environment of a wind power plant is systematically solved, and an accurate three-dimensional observation basis is provided for lightning stroke protection design and accident analysis.

The invention relates to the technical field of communication equipment, in particular to a directional antenna and a control method thereof.The directional antenna comprises a main body, a rotating mechanism, an antenna and a wind speed sensing mechanism, a control center is arranged in the main body, the rotating mechanism is rotatably arranged on the upper surface of the main body, and the side face of the rotating mechanism is an inclined face forming an included angle with the rotating axis; the antenna is vertically arranged on the side face of the rotating mechanism, the wind speed sensing mechanism is located on the upper surface of the body, and the wind speed sensing mechanism is in signal connection with the control center. The antenna has the advantages that the directional antenna is convenient to carry, and the antenna has high stability in a severe environment.

A method and system for object detection and avoidance for an autonomous vehicle is provided. The system comprises a plurality of directional antennas, at least one multi-channel transceiver and a controller. The controller is programmed with computer-executable instructions for detecting, a plurality of radio echo signals from one or more objects, estimating maneuver performance limitations of the autonomous vehicle based on the radio echo signals, and generating at least one collision avoidance maneuver for the at least one autonomous vehicle based on the plurality of maneuver performance limitations and collision risk logic.

The present invention discloses a gradient voltage-excited miniature ultra-wideband directional antenna comprising eight arrays and a logarithmic periodic silicon-based support structure. The arrays are directly bonded to the logarithmic periodic silicon-based support structure, forming periodically arranged array pairs. Each array is directly fed by a voltage source, and each array pair generates strong resonance, enhancing the frequency of the corresponding array and increasing the antenna gain. Eight arrays are bonded above the logarithmic periodic silicon-based support structure, with the eight arrays spaced evenly and distributed in a logarithmic pattern. Eight arrays are bonded below the logarithmic periodic silicon-based support structure, with the eight arrays spaced evenly and distributed in a logarithmic pattern, and the eight arrays are aligned above and below. The present invention utilizes gradient voltage excitation, breaking through the inherent relationship between antenna wavelength and antenna size. This achieves miniaturization while providing extremely wideband coverage from very low frequencies to millimeter waves and enhancing antenna gain.

The present invention relates to the field of directional antennas, specifically a single Dirac cone directional antenna based on gyromagnetic photonic crystals. The present invention uses three dielectric columns and one gyromagnetic YIG column to construct a regular hexagonal unit cell, and uses upper and lower magnet layers to provide a magnetic field. The unit cells are adaptively and tightly arranged into an array antenna, and the array antenna boundary where the excitation source is located is set to a 120° sawtooth perfect conductor boundary. The single Dirac cone directional antenna of the present invention can be adjusted by parameters such as magnetic field, antenna structure, and frequency to control the directionality of the antenna, and has multi-degree-of-freedom adjustment characteristics; it can continue to work when the antenna device has defects and has high robustness; it can be used for directional detection and anti-interference; it has a simple structure and determined directionality. As long as a single Dirac cone outgoing wave is generated, the direction will be locked to achieve high directional emission at a small angle. It effectively solves the problem of relatively low adjustment degree and insufficient robustness of existing directional antennas.