1198 results about "Antenna radiation" patented technology

A differential feed waveguide slot antenna array disclosed by the present invention comprises a radiation layer and a feed layer, the radiation layer is provided with a first antenna radiation slot group and a second antenna radiation slot group, the feed layer comprises a one-to-two power divider, a first feed line and a second feed line, one end of the first feed line is connected with a first output end of the one-to-two power divider, and the other end of the first feed line is connected with a second output end of the one-to-two power divider. One end of the second feeder line is connected with the second output end of the one-to-two power divider, the other end of the first feeder line is connected with the other end of the second feeder line, and the length difference X exists between the first feeder line and the second feeder line, so that the phase difference between a first signal passing through the first feeder line and a second signal passing through the second feeder line is 180 degrees; the first antenna radiation slot group is arranged corresponding to the first feeder line, and the second antenna radiation slot group is arranged corresponding to the second feeder line. The antenna has the advantages of wide working bandwidth, low side lobe and low cost.

According to the broadband single-layer dual-polarization microstrip antenna, a radiation patch and a short-circuit metal column are combined to form an EBG structure, and the working bandwidth is greatly improved. And the two ports are connected with the circular parasitic patch through the coaxial line, so that radiation energy coupling is realized, and impedance matching is improved. And two ports are orthogonally arranged, so that the isolation is improved. The four slits suppress the coupling current between the adjacent antenna units, an additional decoupling structure is not needed, the polarization purity is ensured, and the cross polarization is less than-15dB. The antenna is compact in structure, a single-layer substrate is adopted, the profile of the antenna is 0.08 working wavelength, miniaturization, dual polarization, broadband and high isolation are achieved, processing is simple, the antenna works in the 16.7 GHz Ku frequency band, and the-10 dB impedance bandwidth is about 16%. According to the invention, a miniaturized, dual-polarized, broadband, high-isolation and monopole-like radiation mode is realized, the radiation mode is stable, and the antenna can be used as a phased array unit.

Provided is a device for sensing initiation. The device includes a processor; a transceiver connected to the processor; and a memory, configured to store one or more executable instructions of the processor; wherein the processor, when loading and executing the one or more executable instructions, causes the device for sensing initiation to: transmit and / or receive at least one frame carrying target information during a sensing measurement process, wherein the target information is related to at least one of a transmit power, a receive automatic gain control AGC gain, a transmit antenna radiation pattern, or a receive antenna radiation pattern.

A switchable patch antenna comprises a planar conductor having an aperture (hole) formed in the middle of the planar conductor. Radiation of a sinusoidal signal is controlled by comparison of separate impedance values for two components that have separate impedance values. Each of the two components have one end coupled together at the terminal positioned at a center of the aperture and their other ends separately coupled to opposing edges of the aperture. A sinusoidal signal source is also coupled to the terminal positioned at the aperture's center. Further, when the impedance values of both components are substantially equivalent, radiation by the antenna of the provided signal and / or mutual coupling of other signals is disabled. Also, when an impedance value of one of the two components is substantially greater than the other impedance value of the other component, the provided signal is radiated and / or mutual coupling is enabled.

The invention discloses a transparent antenna for microwave energy transmission and a preparation method and application thereof, and belongs to the technical field of antennas. The transparent antenna comprises a radiation patch, a radiation patch substrate, a dielectric substrate, a reflection backboard substrate and a reflection backboard which are arranged in sequence. Wherein the radiation patch and the reflection backboard are copper nets; the dielectric substrate is of a hollow frame-shaped structure. The preparation method is simple, the adopted materials and the preparation process are both existing mature technologies, large-scale industrial production is easy to achieve, metal copper is adopted to replace traditional transparent metal (ITO), the cost of raw materials is reduced, high-transparency PET and PDMS are adopted as the preparation materials, it is guaranteed that the antenna has high transmittance in the visible light wave band, and the antenna is suitable for large-scale industrial production. Through the combination of the optimized pattern design of the antenna radiation layer and the dielectric substrate with the frame-shaped structure, the energy transmission efficiency and radiation performance of the antenna are remarkably improved, and the dielectric loss of the antenna is reduced.

The invention discloses an extensible silicon-based terahertz radiation array source based on an on-chip micro-convex antenna and a terahertz radiation source. The extensible silicon-based terahertz radiation array source based on the on-chip micro-convex antenna comprises a plurality of array units formed by cross-coupled harmonic oscillators based on the on-chip micro-convex antenna, and the array units are connected to form the extensible silicon-based terahertz radiation array source of an n * n array structure. According to the extensible silicon-based terahertz radiation array source, the on-chip micro-convex antenna radiation structure meets the terahertz frequency and broadband requirements, the extensible silicon-based terahertz radiation array source can be applied to a terahertz radiation source system, and the terahertz radiation source array system which is high in working frequency, high in radiation power and tunable in broadband can be achieved.

The invention provides a wide-angle scanning dual-circularly-polarized phased-array antenna unit, which belongs to the field of dual-circularly-polarized antennas and comprises a first dielectric layer, a second dielectric layer and a third dielectric layer which are sequentially stacked, the antenna radiator is arranged on the side, away from the second dielectric layer, of the first dielectric layer, the antenna radiator comprises four radiation patches, each radiation patch comprises a metal patch and a loading branch knot, and each metal patch is provided with a slotted structure; the first metal ground layer is clamped between the first dielectric layer and the second dielectric layer, and a cross coupling gap and a first coupling gap and a second coupling gap which are perpendicular to each other are formed in the first metal ground layer; the U-shaped feeder line is clamped between the second dielectric layer and the third dielectric layer, and two ends of the U-shaped feeder line are respectively connected with a coaxial feed column penetrating through the third dielectric layer; the second metal ground layer is arranged on the side, away from the second dielectric layer, of the third dielectric layer; an array is also provided; the problem that a traditional circularly polarized antenna is narrow in impedance bandwidth and limited in polarization is solved.

The invention provides a pilot frequency combiner and a multi-system access platform, the pilot frequency combiner comprises a first substrate waveguide resonant cavity, the first substrate waveguide resonant cavity is provided with at least two input feed line ends, the at least two input feed line ends are used for introducing excitation signals of different information sources, a second substrate waveguide resonant cavity is stacked on the first substrate waveguide resonant cavity, and the second substrate waveguide resonant cavity is used for feeding excitation signals of different information sources. The second substrate waveguide resonant cavity is provided with an output feeder end, and the second substrate waveguide resonant cavity and the first substrate waveguide resonant cavity share a cavity wall; the common cavity wall is provided with at least two through coupling holes, and the coupling holes are communicated with the first substrate waveguide resonant cavity and the second substrate waveguide resonant cavity, so that excitation signals input by the at least two input feeder line ends are transmitted to the second substrate waveguide resonant cavity, and are output to an external antenna radiation end after being combined by the output feeder line end. According to the pilot frequency combiner provided by the invention, the isolation degree of multi-band signals is relatively good, the frequency expansibility is also good, and the design flexibility is relatively high.

The invention discloses a packaged antenna and an antenna array based on a three-dimensional stacking technology, belongs to the technical field of packaged antennas, and solves the problem that an existing antenna process is difficult to realize integrated packaging. The active device receives and sends radio frequency signals in an electrical connection mode, the interval height of the rewiring layers is limited within 50 micrometers, and the packaging requirement of the three-dimensional stacking technology is met. The microstrip feeder feeds signals to the antenna radiation patches in a coupled feeding mode, electrical connection is not needed, occupied space is reduced, the bandwidth of the antenna can be increased in a mode of overlapping a plurality of radiation patches, the performance of the antenna is further optimized, the space size of overall active packaging is fully utilized, the antenna and an active device are integrally packaged, and the antenna and the active device are integrally packaged. The packaging cost is reduced, the low-cost design of the packaged antenna is realized, and the packaging antenna has good application prospect and economic value.

The invention relates to a forward millimeter wave radar antenna. The antenna comprises a body, a wide-beam waveguide antenna, a narrow-beam waveguide antenna and waveguide transmission channels, wherein the wide-beam waveguide antenna, the narrow-beam waveguide antenna and the waveguide transmission channels are integrated in the body; the waveguide transmission channels comprise a first waveguide transmission channel and a second waveguide transmission channel; the wide-beam waveguide antenna comprises a polarization conversion structure; the antenna unit comprises a first antenna radiation cavity, a first slot radiation slot and a first opening horn which are connected in sequence, and the polarization conversion structure is connected with the first antenna radiation cavity; a first choke groove; the narrow-beam waveguide antenna comprises a splitter which is connected with the second waveguide transmission channel; the antenna structure array comprises a plurality of sub-antenna structure units, and each sub-antenna structure unit comprises a second antenna radiation cavity, a second slot radiation slot and a second opening horn which are connected in sequence; and the second choke groove is arranged beside the antenna structure array. According to the invention, the requirements of short-distance wide-angle coverage and long-distance high-precision detection are met, and the production cost is reduced.

The invention belongs to the technical field of antennas, and particularly discloses an ultra-wide-band low-profile conformal double-ridge horn antenna which comprises a plurality of antenna radiation units which are arranged in a surrounding mode in the circumferential direction of an aircraft platform and can be installed with the aircraft platform in a conformal mode, and each antenna radiation unit comprises a double-ridge assembly and a feed assembly. Wherein the double-ridge assembly comprises a first ridge unit and a second ridge unit which are symmetrically arranged left and right, the opposite inner side surfaces of the first ridge unit and the second ridge unit are of curved surface structures, and the first ridge unit and the second ridge unit jointly form a horn section at the top and a waveguide section at the bottom; and the feed assembly is arranged on the waveguide section and is used for feeding to the first ridge unit and the second ridge unit. According to the horn antenna, through the structural design, the overall structure of the antenna is relatively compact, the size is relatively small, the height and the profile size of the antenna radiation unit can be reduced through the double-ridge curved surface structural design, and meanwhile the excellent frequency band width is achieved.

The present invention provides a transceiving coaxial phased array LiDAR chip and a control method therefor. The transceiving coaxial phased array LiDAR chip comprises: a laser emitting unit, a general beam splitter, a transceiving phased array, a balanced detector array and a signal processing and control unit; a phase modulator of a phased array unit in the transceiving phased array is separately connected to light-exit paths of the general beam splitter, and performs phase modulation on light output by the general beam splitter; after that, the light is divided into reference light and signal light, the signal light passing through a first port and a second port of a circulator and then being radiated by grating radiation antennas into a free space, and the reference light passing through a frequency shifter and then being input into a 90-degree optical mixer together with an echo optical signal returned by a third port of the circulator; then, balanced detectors receive output signals, convert same into electric signals and transmit same to the signal processing and control unit, so as to calculate three-dimensional depth and / or speed information of a target region. By means of a transceiving coaxial phased array LiDAR and a coherent detection means, the present invention achieves chip integration of a transmitting end and a detection end of the LiDAR, and has higher signal-to-noise ratio and integration degree compared with traditional LiDAR systems.

The invention relates to a system and method for improving the transient bandwidth of a Rydberg atomic microwave sensor, and the system comprises two lasers which are respectively used for generating detection light and coupling light; the detection light and the coupling light pass through a half-wave plate and are reflected by a polarization splitting prism to obtain first vertical polarized light, and the light transmitted through the polarization splitting prism sequentially passes through a reflector and a half-wave plate to be adjusted into second vertical polarized light; the two paths of detection light and coupling light are respectively propagated in the two rubidium atom steam pools in an opposite and coincident manner; the detection light passing through the reference rubidium atom steam pool and the polarization splitting prism and the detection light passing through the rubidium atom steam pool filled with the buffer gas and the semi-transparent and semi-reflective mirror are received by the photoelectric detector; signal microwaves and local microwaves are radiated to the two rubidium atom steam pools through the power divider and the microwave horn antenna respectively, and after a microwave electric field is applied, the intensity of beat frequency signals generated by interference of the signal microwaves and the local microwaves is measured through the change of the light intensity of detection light near EIT resonance.

The embodiment of the invention provides a satellite call method and terminal equipment, and the method comprises the steps: carrying out the satellite call based on the communication with a first satellite, and displaying a call interface; azimuth angle deviation and pitch angle deviation are determined, the azimuth angle deviation refers to the deviation between the azimuth angle of the antenna radiation direction of the terminal equipment and the azimuth angle of the satellite transmission link direction, and the pitch angle deviation refers to the deviation between the pitch angle of the antenna radiation direction and the pitch angle of the satellite transmission link direction; the satellite transmission link direction refers to the direction from the position of the terminal device to the position of the first satellite; if the azimuth angle deviation and the pitch angle deviation meet preset conditions, prompt information is displayed in a call interface, and the prompt information is used for prompting the possibility that the user terminal equipment has a call terminal. The method is convenient for a user to timely adjust the position of the terminal equipment, prevents call interruption, and improves user experience.

The invention discloses a phased-array antenna, the phased-array antenna comprises a plurality of antenna module units, each antenna module unit comprises a PCB and an integrated radome module, and the integrated radome module is arranged on the surface of the PCB; a feed network, a dielectric substrate and an antenna radiation patch are arranged on the PCB, and the PCB is used for realizing feed and partial radiation functions; the integrated antenna housing module comprises a honeycomb support, an antenna patch, a PET film and an antenna housing, the antenna patch is etched on the PET film, the honeycomb support, the PET film and the antenna housing are mutually connected to form an integrated structure, and the integrated antenna housing module is used for realizing wave transmission, bandwidth broadening and impedance matching. According to the phased-array antenna, the use cost of PCB materials is reduced, and the problem that the electrical performance of the phased-array antenna is reduced due to dielectric loss caused by excessive use of PCB materials is solved.

The technology described herein is directed towards a transceiver with beam scanning capability based on leaky wave antenna technology and substrate integrated waveguide technology, along with a metallic covering that determines which direction the antenna radiates signals. The leaky wave antenna can include different respective groups of slot pairs having different respective periodicities, corresponding to different respective beam steering directions. One or more metallic covers can be used to cover some of the slot pair sections, such that the sections under cover behave like a conventional substrate integrated waveguide and the exposed section(s) behave like conventional leaky wave antennas. The metallic covers can be moved as desired, such as attached via magnets. The transceiver can thus steer signals to a wearable or portable device that includes a passive metasurface while mitigating null regions. The slot pairs can be asymmetrical reflection-canceling slot pairs, to achieve broadside radiation while avoiding band-stop effects.

An antenna apparatus includes a board, an integrated circuit chip including a transmitting antenna and a receiving antenna and mounted on the board, a waveguide having a first aperture provided on the board side and surrounding the transmitting antenna and the receiving antenna in aperture view, a second aperture provided on a rear side with respect to the first aperture in a radiation direction of the transmitting antenna, and a first inner wall surface connecting the first aperture and the second aperture, a radio wave lens fixed to the second aperture, and a first radio wave absorber disposed on the first aperture side in a space surrounded by the first inner wall surface. At least part of the first radio wave absorber is located inside a first path of a first direct wave, and the first radio wave absorber is located outside a second path of a second direct wave.

The invention belongs to the technical field of antennas, and provides an E-plane decoupling two-unit metasurface indoor antenna, which comprises a first substrate structure and a second substrate structure which are stacked, wherein the first substrate structure is composed of a metasurface radiator, a first substrate and a bottom plate which are stacked in sequence; the metasurface radiator is sequentially provided with a first patch group, a second patch group and a third patch group from the two sides to the middle, and the third patch group is used for forming radiation edges on the surfaces of the two sides. The third patch group serves as a common patch group of the first patch groups on the two sides to form two separated radiation edges, each radiation edge corresponds to the first patch group on one side, when a decoupling structure is added to the third patch group shared in the middle column, radiation of the respective antenna radiation edge is not affected, and the radiation efficiency of the antenna is improved. Therefore, the influence on the impedance matching performance and the radiation performance is reduced.

The invention discloses an antenna structure, a detection device and terminal equipment, relates to the technical field of millimeter-wave radars, and aims to reduce the profile height of the antenna structure. The antenna structure comprises an antenna housing and an antenna, a first surface of the antenna housing is in contact with a first surface of the antenna, a radiation part is arranged on the first surface of the antenna, a first slot is formed in the first surface of the antenna housing, and the first slot and the radiation part form a first cavity. The antenna cover and the antenna are attached together, and the position, opposite to the antenna radiation part, of the antenna cover is provided with the groove, so that the air gap between the existing antenna cover and the antenna can be saved, the profile height of the antenna structure is reduced, and the antenna structure can be suitable for application scenes with narrow installation spaces; and a certain air gap between the antenna radiation part and the antenna housing can be ensured through the slot on the antenna housing, so that the radiation performance of the antenna is maintained.

The invention discloses a terahertz wave band circularly polarized antenna based on sequential rotation feeding, and belongs to the field of radio frequency front-end devices. The circularly polarized antenna is composed of four microstrip patches, chamfers located on a radiation patch, a microstrip line, a microstrip line feed port, a sequential rotation feed network, a dielectric substrate, a metal ground backboard and a microstrip line matching structure. A 90-degree phase difference is generated by strictly designing the electrical length from each port to the feed network to realize circular polarization performance, right-handed circularly polarized waves are radiated, the radiation gain is 10.47 dB, the 3dB axial ratio bandwidth is greater than 8GHZ, the 3dB axial ratio range exceeds 90 degrees, and the complete half-power beam width is covered. The antenna adopts the microstrip line for feeding, the loss of the microstrip line is small, the microwave transmission characteristic is good, and the antenna radiation efficiency is high. The antenna adopts a single-layer board design, has no complex feed network, and is simple in structure and convenient to manufacture.

The application provides an angle of arrival measurement method, an electronic device, a readable storage medium and a chip, and relates to the technical field of wireless positioning. The method is applied to an electronic device, and the electronic device comprises a first antenna and a second antenna. The antenna radiation field patterns of the first antenna and the second antenna are similar within a first angle range around the electronic device and are not similar within a second angle range around the electronic device. The method comprises the following steps: determining the difference between target parameters measured by the first antenna and the second antenna according to a wireless signal; determining the angle of arrival range of the wireless signal according to the difference; wherein the angle of arrival range is the first angle range or the second angle range; and measuring the angle of arrival of the wireless signal by using the first antenna and the second antenna according to the angle of arrival range. The technical scheme provided in the embodiment can improve the accuracy of angle of arrival measurement.

The invention belongs to the technical field of short-wave communication, and particularly relates to a short-wave sky wave channel propagation parameter optimization method based on antenna directivity, which comprises the following steps: acquiring directivity diagrams of a transmitting antenna and a receiving antenna; determining a propagation path of sky wave rays from a transmitting antenna to a receiving antenna by adopting a numerical ray tracing algorithm; according to the propagation path, calculating free space propagation loss, ionosphere loss and ground reflection loss; performing directional gain correction on the signal intensity on the propagation path according to the directional diagrams of the transmitting antenna and the receiving antenna; calculating the total propagation loss according to the free space loss, the ionosphere loss, the ground reflection loss and the antenna directivity correction value; outputting propagation parameters including the total propagation loss, the propagation path, the antenna directivity correction value and the time delay; according to the method, antenna directivity parameters and propagation path loss are dynamically coupled, and the defect that a traditional model ignores the influence of antenna radiation directivity on signal strength is overcome.

This application discloses an antenna structure and an electronic device. The antenna structure includes an antenna radiation body, a first coupled radiation branch, a second coupled radiation branch, a first feed, a first matching circuit, and a second matching circuit. The antenna radiation body is located between the first coupled radiation branch and the second coupled radiation branch, there is a gap between the antenna radiation body and the first coupled radiation branch, and there is a gap between the antenna radiation body and the second coupled radiation branch. The first feed is disposed between a first feed point on the antenna radiation body and a ground plane. The first matching circuit is disposed between a first position of the antenna radiation body and a ground plane. The second matching circuit is disposed between a second position of the antenna radiation body and a ground plane.

The invention relates to the field of communication, and discloses an antenna unit, an AIP module and a phased-array antenna, the antenna unit comprises metal layers and low-temperature co-fired ceramic layers which are sequentially and alternately stacked from bottom to top, and the antenna unit is prepared according to the following process: ceramic powder is processed into a green tape through a tape casting technology; sequentially laminating the green ceramic tape and the metal layer to form a laminated structure; the uppermost layer of the stacked structure is a metal layer, and the metal layer comprises an antenna radiation layer, a coupling feed layer and a reference ground layer; applying pressure to the laminated structure and heating the laminated structure to form a green ceramic chip structure; heating the green ceramic chip structure to remove colloid in the green ceramic tape; and co-firing the green ceramic chip structure, and changing the green ceramic tape into a low-temperature co-fired ceramic layer to obtain the antenna unit. The low-temperature co-fired ceramic technology can provide a dielectric material with lower loss and a reliable multi-layer process, and is easier to integrate and miniaturize. Compared with a PCB, the manufacturing process of the antenna unit is simpler, the processing cost can be reduced, and the yield of the antenna unit is improved.

The invention discloses a foldable electronic device and an antenna signal processing method, and the device comprises a first housing; the second shell is rotatably connected with the first shell through a rotating shaft mechanism; the first antenna is arranged on the first shell; the second antenna is arranged on the rotating shaft mechanism; wherein at least one of the first antenna and the second antenna is used for transmitting wireless signals; and when the first shell and the second shell are in the folded state, the maximum radiation direction of the second antenna is the direction in which the rotating shaft mechanism is far away from the second shell. The antenna radiation power of the foldable electronic equipment in the folded state can be improved, and the signal quality of the foldable electronic equipment in the folded state can be improved.

The invention belongs to the technical field of communication antennas, and provides a wide-beam patch antenna which comprises a radiation patch, a grounding plate, a feed structure, a dielectric substrate and at least one group of grounding metal coupling columns. The grounding metal coupling column is located in a current belly area of a main current mode of the radiation patch, forms strong coupling with a main mode current, excites and establishes a secondary current path perpendicular to a horizontal plane direction, and enhances a low elevation angle component of antenna radiation and a beam width in a polarization direction; by establishing a four-coupling-column structure of an orthogonal mode cooperative enhancement mechanism, the half-power beam width in two orthogonal polarization directions can be effectively expanded, and wide-beam circular polarization radiation of the antenna is further realized; in addition, a single-layer dielectric substrate structure is adopted, the antenna is light and low in cost, wide beam performance is guaranteed, meanwhile, cost control and manufacturing reliability are considered, and the antenna has good feasibility.

The invention discloses a broadband dual-circularly-polarized low-cost phased-array antenna array element, which comprises an antenna radiation structure and a slot feed structure which are arranged independently from each other, and is characterized in that the antenna radiation structure comprises a parasitic radiation layer, a first dielectric substrate, an excitation radiation layer and a second dielectric substrate which are arranged in a laminated manner; the slot feed structure comprises a slot layer, a third dielectric substrate, a strip-shaped transmission line and a fourth dielectric substrate; the antenna layer structure and the slot feed structure realize electromagnetic coupling transmission through the slot layer; a hollow symmetrical structure is arranged in the middle of the first dielectric substrate, and the hollow part is used as an air medium to reduce dielectric loss; the gap layer is provided with a multidirectional coupling gap structure; the strip-shaped transmission line is provided with at least two feed ports, and dual circularly polarized radiation is formed in the antenna layer structure through excitation of different feed ports. The antenna radiation layer has no metal through hole or blind hole, can be processed in a layered manner, has the advantages of low processing cost and high yield, and ensures impedance bandwidth while realizing dual circular polarization.

The invention discloses a self-adaptive optimization method for a heading beacon directional diagram. The method comprises the following steps: initializing LOC antenna array element parameters and obstacle parameters; calculating the angle range of the LOC antenna radiation field influenced by the obstacle; respectively designing expected directional diagrams of CSB signals and SBO signals radiated by the LOC antenna; the directional diagrams of CSB signals and SBO signals radiated by the LOC antenna are adaptively optimized; and evaluating the channel performance of the optimized optimal directional diagram. According to the method, the characteristic of robustness of the adaptive processing technology is fully utilized, the feed amplitude and the feed phase of the heading beacon antenna are adaptively calculated according to the area range of the radiation field influenced by the obstacle, and the horizontal guiding performance of an existing dual-frequency heading beacon system on an airplane can be improved on the premise that the number of antenna array elements is not increased. When the course beacon system is installed and debugged, the feed amplitude and phase can be adjusted in a self-adaptive mode according to the airport environment, and the installation and debugging workload is reduced.

The invention relates to an unmanned ship dynamic channel modeling method in an offshore water surface environment, and the method comprises the steps: constructing a three-dimensional offshore water surface simulation scene which comprises a sea surface, a wharf facility, an unmanned ship cluster and a communication node; establishing a wireless channel propagation model based on a ray tracing method, and simulating a propagation mechanism of direct, reflection and diffraction paths; establishing a motion characteristic model of the unmanned ship under the action of waves, and obtaining six-degree-of-freedom pose data of the unmanned ship; generating multiple frames of scene copies in batches by adopting an intelligent batch processing dynamic reconstruction method; dynamically correcting an antenna pattern in each frame of scene copy according to the pose data so as to couple the influence of hull motion on antenna radiation characteristics; importing the corrected antenna pattern into the wireless channel propagation model to generate a dynamic channel response; simulation is executed, and channel data obtained through simulation are collected and analyzed. According to the method, the motion characteristics of the unmanned ship in waves and the wireless channel propagation mechanism can be accurately coupled, and the accuracy of dynamic channel prediction is improved.

The invention relates to the technical field of powder metallurgy, and discloses a fusion reactor antenna radiation band and an SLM forming method thereof.A target three-dimensional model is established, so that a fusion reactor antenna radiation band body is provided with cooling flow channels and communicating flow channels in a spreading mode, the cooling flow channels are continuously twisted in the axial direction of the cooling flow channels, and therefore the fusion reactor antenna radiation band body is formed. Therefore, when SLM forming is carried out, the possibility that the upper wall lacking a support in the cooling flow channel collapses is reduced, the void ratio is reduced, and the rigidity of the structure is improved; the suspended outer wall of the fusion reactor antenna radiation band is supported through an outer support, so that the overall structure is prevented from collapsing; and performing slice production through SLM process production equipment, cutting the outer support, and performing post-processing to obtain the target fusion reactor antenna radiation band.