398 results about "Power division" patented technology

The invention provides a trajectory design method and system in an unmanned aerial vehicle hidden and sensing integrated network, and the method comprises the steps: firstly deducing a multi-listener cooperative receiving signal expression and a probability density function in the sensing integrated network with multiple cooperative listeners; then deriving a minimum detection error rate expression of multi-listener collaborative detection and an optimal power division ratio expression meeting covert communication constraints based on a maximum likelihood principle; and establishing an unmanned aerial vehicle track and scheduling optimization problem of anti-cooperative detection in the unmanned aerial vehicle hidden and inductive integrated network according to the deduced formula. And finally, iteratively solving the problem based on convex approximation and an ellipsoid method to obtain an optimal unmanned aerial vehicle trajectory and scheduling. According to the method provided by the invention, the covert communication requirement in the unmanned aerial vehicle communication perception integrated network can be well met, and the communication safety in the future unmanned aerial vehicle Internet of Things is improved.

The invention discloses a signal transmission method and device based on orthogonal matrix precoding. The method comprises the steps that four chaotic sequences X, Y, Z and W are generated through a four-dimensional chaotic model according to a key initial value; performing bit interleaving on the original data by using X and W to obtain first data; performing serial-to-parallel conversion and QPSK mapping to obtain a mapping signal; scrambling the subcarriers and symbols of the mapping signals by using Y and Z to obtain encrypted data; carrying out IFFT (Inverse Fast Fourier Transform) on the encrypted data, adding a cyclic prefix, and carrying out parallel-serial conversion to obtain an encrypted data stream; performing binary conversion and serial-parallel conversion on the key initial value to obtain a square matrix K, and shaping the square matrix K by using a public key to obtain a key matrix; performing serial-to-parallel conversion, QPSK mapping, IFFT, cyclic prefix addition and parallel-to-serial conversion on the key matrix to obtain a key stream; and performing linear superposition on the encrypted data stream and the key stream through power distribution to obtain a power division multiplexing orthogonal frequency division multiplexing signal, and transmitting the power division multiplexing orthogonal frequency division multiplexing signal.

An antenna and a method for manufacturing the same are provided. The antenna includes a first substrate, a second substrate opposite to the first substrate, a plurality of radiation units on a side of the first substrate distal to the second substrate, and a waveguide power division structure between the first substrate and the second substrate. The waveguide power division structure has a waveguide cavity, includes an input opening and a plurality of output openings, and divides a signal input through the input opening into a plurality of sub-signals. The plurality of sub-signals are output from the plurality of output openings, respectively, and each of the plurality of output openings outputs one of the plurality of sub-signals to at least one of the plurality of radiation units.

The invention discloses a high-isolation waveguide three-way power dividing and combining network structure which comprises a waveguide three-way power divider and a waveguide three-way power combiner, and an amplifier is connected between the waveguide three-way power divider and the waveguide three-way power combiner. The waveguide three-way power divider comprises a power divider upper waveguide cavity and a power divider lower waveguide cavity which are symmetrically arranged, and the power divider upper waveguide cavity and the power divider lower waveguide cavity are connected through screws. The waveguide three-path power combiner comprises a combiner upper waveguide cavity and a combiner lower waveguide cavity which are symmetrically arranged, and the combiner upper waveguide cavity and the combiner lower waveguide cavity are connected through screws. Microwave signals are distributed by the waveguide three-way power distributor, amplified by the amplifier, and then combined by the three-way power combiner. By constructing a brand-new three-path power division and synthesis network architecture, the problem of mutual load traction of amplifiers in a traditional non-isolated network is solved, and the stability of power synthesis is improved.

The utility model provides a large-bandwidth 220G terahertz emission front end, which comprises a frequency doubler, a filter, an amplifier, a one-to-two power divider, a first one-to-four power divider and a second one-to-four power divider, wherein the frequency doubler, the filter, the amplifier and the one-to-two power divider are sequentially connected, and the first one-to-four power divider and the second one-to-four power divider are respectively connected with two output ends of the one-to-two power divider. The output end of the first one-to-four power divider and the output end of the second one-to-four power divider are connected with four transmitter frequency doubling amplification modules. According to the utility model, input 15G-21.7 GHz low-frequency signals are subjected to frequency doubling amplification to obtain 30G-42.4 GHz signals, the 30G-42.4 GHz signals are divided into 8 paths of transmitter frequency doubling amplification modules 7 through two power division links, the 8 paths of signals are respectively controlled by a single-pole four-throw switch to obtain 32 paths of signals, the 60-84.8 GHz signals are obtained after frequency doubling amplification, and the 60-84.8 GHz signals are transmitted to the transmitter frequency doubling amplification modules 7. The signals are divided into 64 paths of signals under the control of a single-pole double-throw switch, and the 64 paths of signals are amplified by a frequency tripler to obtain final 180-260GHz emission signals. According to the utility model, emission of multi-channel signals can be simultaneously realized, and the production and manufacturing cost of the terahertz front end is obviously reduced.

The invention provides a radio frequency power division unit, a radio frequency power division module and a radio frequency receiving system. The radio frequency power division unit comprises a first low noise amplifier, a first single-pole single-throw radio frequency switch, a second single-pole single-throw radio frequency switch, a third single-pole single-throw radio frequency switch, a power divider, a fourth single-pole single-throw radio frequency switch and a fifth single-pole single-throw radio frequency switch; the input impedance of the input end of the power divider, the impedance of the first output end of the power divider and the impedance of the second output end of the power divider are all the same. According to the radio frequency power dividing unit in the embodiment, the impedance of the two output ends of the power divider can be completely matched with the input impedance of the transceiver connected with the rear stage of the power divider, so that the transmitted radio frequency energy cannot be reflected, and the maximum transmission of the radio frequency energy is realized.

The invention relates to the technical field of scatter communication, in particular to a narrow-edge traveling wave waveguide slot array antenna. Comprising an antenna housing which adopts a flanging design to protect an antenna surface; the slot radiation port is composed of a rectangular port array with horizontal short edges; the coupled feed port is composed of a rectangular port array with horizontal short edges; and the power division network is formed by cascading H-surface T-shaped power dividers and is formed by equally-divided and unequally-divided one-to-two power dividers. The problems that an existing panel antenna is low in gain, large in size and heavy in weight are solved.

The invention provides a time-sharing multi-channel power distribution system and a control method thereof, and the system comprises a microwave excitation source which is used for generating a continuous wave radio frequency signal; the common end of the multi-channel radio frequency switch is connected with the output end of the microwave excitation source, and the multi-channel radio frequency switch is used for switching a radio frequency signal to any one of a plurality of output channels of the multi-channel radio frequency switch in a time-sharing manner; the control module is electrically connected with the control end of the multi-channel radio frequency switch, and the control module is used for outputting a control signal according to a preset time sequence so as to drive the multi-channel radio frequency switch to be switched among different output channels; the directional protection module is connected between the microwave excitation source and the multi-channel radio frequency switch and is used for guiding reflection power from an output channel to a matched absorption load, so that the inherent problem of power division attenuation of a traditional power divider is solved; therefore, each output channel can obtain almost all original input power in the working gap, thereby greatly improving the power utilization rate and the transmission efficiency.

A waveguide antenna and a related device relate to the technical field of millimeter wave radars. The waveguide antenna comprises at least one power division unit and N waveguides, the at least one power division unit is used for dividing a first signal from a radio frequency chip into N paths of signals, the N paths of signals are transmitted through the N waveguides respectively, at least two waveguides in the N waveguides are different in length, and N is an integer larger than 1. The waveguide antenna can meet different requirements of different application scenes on the detection capability of the antenna at the same time.

The invention relates to a high-gain low-sidelobe antenna. The power divider comprises a first power division torsion network which comprises a channel arranged along a first direction and two sub-channels divided towards two sides of a second direction along the channel; the plurality of coupling grooves are distributed on the two sub-channels along a second direction; the number of the second power division torsion networks corresponds to the number of the coupling grooves, each second power division torsion network is arranged on one side of the corresponding coupling groove along a third direction, and each second power division torsion network extends along the first direction; the coupling slot is used for receiving a signal transmitted by the corresponding coupling slot and transmitting the signal to two sides of the first direction; and the number of the slot radiation units corresponds to that of the second power division torsion networks, and each slot radiation unit comprises a plurality of slot radiation slots distributed along the first direction. The antenna is compact in structure, and the sidelobe level is effectively reduced while high gain is met.

The invention discloses a multichannel broadband receiver, and belongs to the technical field of microwave radio frequency and electronic control, the multichannel broadband receiver comprises a multichannel down-conversion assembly, a local oscillator power component, a power interface control panel and a VPX connector, the down-conversion assembly adopts a cavity-divided integrated structure, multiple identical radio frequency links are arranged in the same cavity in parallel, and the VPX connector is connected with the local oscillator power component. Down conversion from a 2-18GHz radio frequency signal to a 1.3-2.3 GHz intermediate frequency signal is realized through two-stage frequency mixing; the power supply interface control board takes an FPGA as a core, integrates the functions of multi-path power supply conversion, driving isolation, state monitoring and the like, and realizes channel gain power failure storage and calling, BIT self-inspection, nanosecond rapid turn-off and multi-parameter real-time monitoring through software and hardware cooperation. Through collaborative innovation of the structure, circuit and control, high integration, high channel consistency, high isolation and high intelligence of the multi-channel receiver are realized, and the multi-channel receiver is suitable for the fields of high-performance radars, electronic countermeasures and the like.

An electrical tilt feed network (1), comprising: a power division network (11), comprising a main path feeder (111) and branch feeders (112); and a variable delay module (12) connected in series on one branch feeder (112) and comprising a first electrical tilt switch (121), a second electrical tilt switch (122) and a plurality of delay lines (123), wherein the plurality of delay lines (123) have the same impedance and different lengths, and two ends of each delay line (123) are respectively electrically connected to the first electrical tilt switch (121) and the second electrical tilt switch (121). In the present disclosure, the conduction of any delay line (123) can be realized by means of excitation of an electrical signal, thereby simplifying the structure of the variable delay module (12), and reducing the size and weight of the electrical tilt feed network (1); in addition, controlling the electrical tilt switch on the basis of the electrical signal improves the response rate, thereby improving the phase switching efficiency.

A radio frequency power amplifier includes three amplification branches. Two amplification branches have narrow working frequency bands and respectively work on a frequency band A and a frequency band B. The other amplification branch works in a frequency band A and the frequency band B. The radio frequency power amplifier also includes an inter-frequency power division circuit and two circulators. The inter-frequency power division circuit performs inter-frequency power division on an output signal of a wideband amplification branch to output two paths of narrowband signals, and the two paths of narrowband signals are output after being subject to power combination with output signals of each narrowband amplification branch by the circulators.

The invention relates to an energy distribution method and device, a controller and a storage medium. The method comprises the steps that driving modes and operation parameters of a vehicle in each unit time in a preset historical time period are obtained, and a battery electricity consumption rate optimal sequence in a pure electric mode is determined in combination with a pre-constructed longitudinal kinetic model, a pre-constructed power division kinetic model, a pre-constructed battery model and a pre-constructed engine universal characteristic curve; a candidate working point, meeting the minimum combination of the fuel consumption rate and the battery power consumption rate, of the hybrid power mode is determined; screening the candidate working points to obtain a more balanced target working point; based on the battery power consumption rate optimal sequence and the multiple target working points, obtaining each optimal driving mode and a global optimal control sequence for a preset historical time period through a dynamic programming algorithm; and system-level performance index parameters of the vehicle are optimized based on the optimal driving mode and the global optimal control sequence, so that optimization of energy distribution in the vehicle running process is realized, and the vehicle economy is improved.

A ceiling-mounted antenna (10), comprising: an antenna base (1); a vertical-polarization antenna (2), which comprises a reflecting plate (21) and an antenna element (22), the reflecting plate (21) being located between the antenna base (1) and the antenna element (22); a horizontal-polarization antenna (3), wherein a plurality of patch units (31) are distributed at intervals around the antenna element (22) and are located on the side of the reflecting plate (21) away from the antenna base (1); and a passive frequency-mixing module (4), which comprises a dielectric substrate (41), a passive frequency-mixing circuit (42) and a power division network (43), wherein the passive frequency-mixing circuit (42) is electrically connected to both the antenna element (22) and the power division network (43), and the power division network (43) is electrically connected to the plurality of patch units (31). On the basis of a low-frequency signal transmitted by means of a DAS, a 5G signal is obtained under the action of the passive frequency-mixing circuit (42), thereby implementing 5G communication of the ceiling-mounted antenna (10), and improving the indoor 5G communication quality. (FIG. 1)

The invention discloses a reconfigurable feed source, and the feed source comprises four dual-polarized antennas which respectively output two polarized signals; the eight low-noise amplifiers are respectively connected with polarized signals of the dual-polarized antenna; the eight power dividers are connected with the output ends of the low-noise amplifiers; the sixteen attenuators are respectively connected with the output end of the power divider; the sixteen phase shifters are respectively connected with the output ends of the attenuators; the eight combiners are used for receiving the two paths of processed signals of the corresponding dual-polarized antennas and outputting one path of synthesized signal; the first synthesis network is used for receiving and synthesizing the signal output by the combiner and outputting a synthesized signal; and the second synthesis network is used for receiving and synthesizing the signal output by the combiner and outputting a synthesized signal. According to the invention, dual-polarized antenna signals are subjected to amplification, power division, attenuation, phase shift and synthesis to obtain two paths of signals, and each path of signals can independently realize amplitude weighting and phase shift synthesis of each antenna signal, so that feed source directional diagram reconstruction and polarization reconstruction are realized.

The invention relates to the technical field of antennas, in particular to a dual-circularly-polarized antenna unit and a satellite-borne phased-array antenna, and the dual-circularly-polarized antenna unit comprises a single-layer feed dielectric plate; and two feed ports. A four-feed-point power division network circuit; a 3dB bridge circuit; the dipole radiation unit comprises a radiation panel which is in a plate shape as a whole; the radiation arm is arranged at the edge of the radiation panel, and the radiation arm is arranged in a bending manner; the upper end of each feed pin is connected to the radiation panel, and the lower end of each feed pin is connected to the corresponding bonding pad outlet. According to the dipole antenna, the single-layer feed dielectric plate is arranged, the four-point feed power division network circuit and the first microstrip line and the feeder line of the 3dB bridge circuit are subjected to snakelike routing design and miniaturization processing, and the radiation arms of the dipole radiation units are also subjected to three-dimensional folding miniaturization arrangement, so that the height and the radiation aperture of the dipole antenna are reduced; the height of the antenna is only 0.125 wavelengths of a central frequency point.

The utility model relates to a cavity structure for a phase shifter, and the cavity structure comprises a middle cavity which is constructed to be used for accommodating a main feed signal line; the side edge cavities are separately arranged on the two sides of the middle cavity, and the side edge cavities are constructed to be used for accommodating a power division network, a phase shift network and a main feed network; and the main feed network is electrically connected with the main feed signal line through the metal adapter piece, and the main feed network is electrically connected with the main feed signal line through the metal adapter piece. In this way, the cavity structure for the phase shifter can be divided into at least three smaller cavities which are arranged side by side, so that the height of the cavity structure for the phase shifter can be reduced, and the assembly flexibility and the overall height of the antenna comprising the cavity structure provided by the utility model are further improved.

The invention relates to a two-dimensional spatial multiplexing multi-path synthesis power amplifier circuit, which comprises an input power division network for distributing signals to each path of two-dimensional spatial multiplexing module for signal amplification; the two-dimensional space multiplexing module is used for placing the adjacent multi-path amplifying units or transmitting units in the same area, so that m * N paths of amplifying units or transmitting units are realized in N paths of areas, power synthesis miniaturization is realized, and signals are sent to an output synthesis network; and the output synthesis network is connected with the outputs of the two-dimensional spatial multiplexing modules, and outputs the output signals after power synthesis. Compared with a conventional power synthesis technical scheme, the area is more compact, the output power can be doubled under the same area, or the area is saved by 50% under the same output power, the on-chip power synthesis implementation cost can be greatly reduced, the design is simpler and more convenient through mutual decoupling of parameters of the embedded transformer and the peripheral transformer, and the power synthesis efficiency is improved. The design efficiency is improved.

The invention relates to a multichannel down-conversion chip, a multichannel down-conversion circuit and a receiver, and the chip comprises a local oscillator signal processing module which accesses a local oscillator signal, carries out the amplification and power division of the local oscillator signal, and obtains a plurality of local oscillator power division signals; based on the local oscillator power division signal, phase shifting is carried out to obtain a phase-shifted local oscillator signal, and the phase-shifted local oscillator signal is input of a frequency mixer in a corresponding channel; each channel of the multi-channel module is provided with a radio frequency amplifier, a frequency mixer and an intermediate frequency amplifier which are connected in sequence, the input end of each radio frequency amplifier is used for accessing a received radio frequency signal, and the output end of each intermediate frequency amplifier is the output end of the corresponding channel; by adopting the chip, the number of components required in the down-conversion circuit can be effectively reduced, the manufacturing cost of the down-conversion circuit is reduced, and the plurality of components such as the radio frequency amplifier, the frequency mixer and the intermediate frequency amplifier are integrated in the same chip, so that the size of the down-conversion circuit can be reduced, and the miniaturization requirement can be met.

The utility model relates to a high-gain dual-polarized waveguide slot antenna array, and belongs to the technical field of radars. Comprising a horizontally-polarized antenna and a vertically-polarized antenna which are arranged in a staggered mode, the horizontally-polarized antenna is composed of a horizontally-polarized radiation waveguide, a horizontally-polarized rectangular power dividing waveguide and a feed waveguide, and the horizontally-polarized radiation waveguide is located above the horizontally-polarized rectangular power dividing waveguide and connected with the horizontally-polarized rectangular power dividing waveguide through a transition waveguide; the feed waveguide is mounted on the lower side of the horizontal polarization rectangular power division waveguide; the vertical polarization antenna is composed of a vertical polarization radiation power division waveguide, a vertical polarization rectangular power division waveguide and a feed waveguide, the vertical polarization radiation power division waveguide is located above the vertical polarization rectangular power division waveguide and connected with the vertical polarization rectangular power division waveguide through a transition waveguide, and the feed waveguide is installed on the lower side of the vertical polarization rectangular power division waveguide. According to the utility model, the feed waveguide and the radiation waveguide are integrally processed in a mode of stacking multiple layers of waveguides; the waveguide feed network is used for feeding, and has remarkable advantages compared with a traditional micro-strip or strip line network.

The invention relates to the technical field of communication anti-interference testing, in particular to an unmanned aerial vehicle interference testing method based on dynamic attenuation and power division. According to the method, multi-dimensional environment feature vectors including power spectral density, modulation features and signal time delay are extracted; a dynamic attenuation matrix is constructed based on the vector, and a composite path loss model is established on the basis of correcting a free space propagation model, so that interference characteristics in a real wireless propagation scene can be effectively simulated, a test channel is enabled to be more fit with an actual deployment environment, and the credibility and adaptability of interference test are improved; according to the invention, based on the optimal power proportion, three types of signals, namely, an environment noise signal, a deceptive interference signal and an impressive interference signal, are generated respectively, and three indexes, namely communication response time delay, positioning deviation and a communication interruption rate, are combined to form an accurate anti-interference evaluation system; and the robustness, the stability and the fault-tolerant capability test precision of the unmanned aerial vehicle communication system in different interference environments are effectively improved.

The invention discloses a differential bridge structure and a differential circuit structure. The differential bridge structure can comprise a differential power division network, a first differential phase shift network and a second differential phase shift network, wherein the differential power division network, the first differential phase shift network and the second differential phase shift network are constructed based on coupling transmission lines; the differential power division network is configured to divide an input signal into two paths of differential signals and output the two paths of differential signals to the first differential phase shift network and the second differential phase shift network respectively; the first differential phase shift network and the second differential phase shift network are respectively configured to output the differential signal as an output signal whose phase difference is a preset difference value including 90 DEG. The differential bridge structure disclosed by the invention has good broadband characteristics, realizes high-precision phase control, and can output and maintain 90-degree phase difference signal output.

The invention, which relates to the technical field of new energy power generation and power grid dispatching, discloses a climbing reserve demand evaluation method, system and device considering new energy power generation random fluctuation, and a storage medium, comprising the steps of collecting a historical active measurement time sequence of a new energy station, and performing preprocessing; grouping the preprocessed active measurement time sequence according to time granularity duration, and calculating a power characteristic index based on each group of data; on the basis of the power characteristic indexes and according to a preset power division rule, dividing the new energy power generation power into power intervals, and obtaining a mapping relation between the time granularity and the power intervals; generating a reserve capacity demand duration curve and a required reserve capacity value based on the reserve capacity demand of the power interval section, and generating a climbing rate demand duration curve and a required climbing rate value based on the climbing rate of the power interval section; and resetting the time granularity duration, and updating the required standby capacity and the climbing requirement. The new energy power generation adjusting capacity is improved.

The invention provides a dual-circularly-polarized feed source assembly and a feed source system. The dual-circularly-polarized feed source assembly comprises four identical horns, a dual-polarized four-path power division and synthesis network and a T-shaped waveguide circular polarizer which are cascaded. The inner wall of the horn adopts an exponential curve structure, the dual-polarization four-path power division and synthesis network comprises a common input waveguide, a frustum mode matching waveguide cavity and four output waveguides, the T-shaped waveguide circular polarizer comprises a stepped gradient waveguide and a rectangular waveguide, the rectangular waveguide and the stepped gradient waveguide are arranged in a T shape, and the rectangular waveguide and the stepped gradient waveguide are arranged in a T shape. The plane where the wide side of the rectangular waveguide is located has a 30-degree rotation angle relative to the propagation cross section of the tapered waveguide. Compact transformation from linear polarization to circular polarization can be realized through T-shaped butt joint of the stepped gradient waveguide and the rectangular waveguide. The dual-circular polarization feed source assembly has good broadband circular polarization performance.

The application discloses a high-power phased array panel unit with a staggered layering structure and belongs to the technical field of phased arrays; the unit comprises an antenna panel, a TR module, a digital module, a power division module, a calibration module and an optical fiber module, further comprises a peripheral frame and a bottom cover; the bottom cover and the antenna panel are respectively covered on the bottom and the top of the peripheral frame to form a box body; the upper surface of the antenna panel is provided with a plurality of oscillator units arranged in a triangular array mode; an adapter plate is fixed to the lower side of the antenna panel through a support and exposed to the bottom cover; the inner side of the antenna panel is further provided with a temperature control module for detecting temperature, and the temperature control module is located between the antenna panel and the adapter plate; a fan is further arranged on the bottom cover and electrically connected with the temperature control module circuit. The application has the advantages of flat design of each module, unified module interface, completion of array splicing requirements by replacing the antenna panel, quickness and convenience, and mutual replacement of each module.

The utility model provides a Ka frequency band power amplification phase shift assembly, which solves the problems of power flatness and the like and comprises an equipment shell, and a power division network module, an amplification network module, a phase shift network module, an attenuation network module, a driving network module and a control circuit are arranged in the equipment shell. The power division network module is integrally connected with the equipment shell and is fixed on the front surface of the equipment shell, the power division network module is provided with four output ports, each output port is respectively connected in series with an attenuation network module, a phase shift network module, a driving network module and an amplification network module through SMA connectors, and the attenuation network module and the phase shift network module are respectively provided with a control needle. The control circuit is installed at the bottom of the equipment shell and connected with the control needle. The utility model has the advantages of good output power flatness, stable structure and the like.

The application discloses a broadband multi-stage Gysel power divider based on an IPD process, comprising a microstrip structure layer, and first and second dielectric substrates and a ground metal layer; the microstrip structure layer adopts a multi-layer nested structure, each layer of the nested structure is formed by cascading multi-stage Gysel power division units, and is arranged on the upper surface and the interior of the first dielectric substrate, so that an integrated layout based on the IPD process is formed, and a planar spiral structure, an air bridge, a parallel plate capacitor, a thin film resistor and a layered ground unit structure are integrated; the planar spiral structure is equivalent to a specific characteristic impedance transmission line, the air bridge structure solves cross interference and suppresses a parasitic capacitor, the parallel plate capacitor structure calibrates equivalent reactance parameters, the thin film resistor effectively improves port isolation and heat dissipation, and the layered ground unit structure strengthens heat dissipation and ground reliability. The application can realize stable power distribution in a wide frequency band, and is suitable for the integration requirements of high-frequency, high-power and small-sized radio frequency front ends.

The utility model discloses a radio frequency antenna equipped with an EBG structure and an antenna system matched with an annular coupler, which comprises a top copper plate, an upper dielectric layer, a curing plate, a lower dielectric layer and a bottom copper plate which are sequentially arranged from top to bottom, and a signal transmission layer is arranged between the upper dielectric layer and the curing plate; an annular coupler is arranged on the signal transmission layer, a branch knot of the annular coupler is connected with a balance port, a transmitting port, an antenna port and a receiving port through an impedance conversion branch knot, a radio frequency antenna is arranged at the antenna port, and two EBG structures are arranged around the radio frequency antenna. According to the antenna system in which the radio frequency antenna configured with the EBG structure is matched with the annular coupler, energy power division and signal isolation of a transmitting port and a receiving port are realized, so that the signal-to-noise ratio is improved; the EBG structure is configured around the radio frequency antenna, so that the propagation of reflected waves and plane waves is suppressed, the radiation gain of the antenna is increased, and the overall stability of the system is improved.

The invention provides a dual-distributed intelligent reflective surface (IRS)-assisted data and energy simultaneous transmission system and a near-field beam forming method. The system comprises a wireless access point, a dual-distributed IRS system, user equipment and an interference point. Wherein the wireless access point and the interference point are respectively provided with a single antenna, and the user equipment carries a multi-receiving antenna system. The method comprises the following steps: firstly, constructing a near-field channel model, then assisting a digital energy simultaneous transmission system to carry out joint near-field beam forming by virtue of a double-IRS system, and carrying out optimization design on a power division vector of a multi-receiving antenna system. According to the invention, the balance between the data transmission rate and the energy collection is effectively realized, the energy collection efficiency and the information transmission rate of the system are improved, the anti-interference capability is enhanced, technical breakthrough is realized in the aspects of green communication capability, information and energy cooperative transmission efficiency, system coverage range, flexibility and the like of a next-generation communication network, and the method is suitable for popularization and application. The important support is provided for the development.