63 results about "Radiation mode" patented technology

An apparatus, method and computer program product for: selecting (405), based on at least one first criterion, a set of antenna elements, determining (410) a radio beam codebook comprising a plurality of radio beam configurations for the set of antenna elements, determining (415) a radiation pattern obtainable based on the radio beam codebook, determining (420), based on the obtainable radiation pattern, a radio beam configuration that fulfills a second criterion, and applying (425) the radio beam configuration to a radio beam provided by the set of antenna elements.

The application provides a signal feed assembly, which comprises a substrate, a signal coupling unit, a switching unit and a transmission unit. The switching unit comprises a control terminal, a common terminal and at least two switching output terminals. The control terminal and the common terminal are electrically connected to the transmission unit, so as to transmit baseband signals and radio frequency signals through the transmission unit. The signal coupling unit is arranged apart from a radiating element, so as to transmit radio frequency signals through the radiating element to generate multiple radiation modes. The signal coupling unit comprises at least two coupling patches, each of which is electrically connected to a corresponding switching output terminal. The switching unit controls the switching of the coupling patches through the switching output terminals to switch the multiple radiation modes. The application comprises a modular signal feed assembly and a metal radiating element, so as to form a corresponding antenna module to cover multiple frequency bands, improve the frequency width and have the best antenna efficiency. The application also provides an antenna module and an electronic device.

A differential feed dual-polarization super-directivity array antenna comprises a plurality of array units, and each array unit comprises a supporting structure, a main radiator, a metal floor and a radiation parasitic structure. The metal floor is arranged below the supporting structure, the main radiator is arranged in the supporting structure, the radiation parasitic structure is arranged above the supporting structure, and the main radiator is connected with a metal coaxial connector arranged on the metal floor through the feeder line structure. According to the invention, a dual-polarization radiation mode is realized by adopting two pairs of differential port feed structures, and an array design scheme with a super-directivity characteristic can be realized under two polarizations, so that the directivity upper limit value of a traditional aperture antenna scheme is broken through, and the capacity and the performance of a communication system are remarkably improved.

The application discloses a blackbody-thermoelectric pile cooperative thermistor multi-temperature-point zero-point matching calibration method. The method utilizes the Seebeck effect of the thermoelectric pile, establishes the accurate corresponding relationship of the blackbody standard temperature-thermistor resistance value through zero-point matching, carries out dynamic temperature scanning on different calibration point temperatures of the cavity, and obtains the thermistor parameters of multiple temperature points. Finally, the accurate R-T curve is fitted through the least square method. The method innovatively calibrates the thermistor through the blackbody heat radiation mode. The method does not need to disassemble the instrument, does not damage the stability of the original system, can complete the rapid calibration of the instrument on site, effectively reduces the calibration cost, and guarantees the temperature calibration accuracy and the calibration effect.

This invention provides a wideband airspace radiation device and a wideband anti-unmanned system. The wideband airspace radiation device includes a mounting plate; a first-band radiator is arranged at the center of the mounting surface to provide omnidirectional coverage of the first band; several parasitic elements are arranged circumferentially along the first-band radiator; the second-band radiator employs directional antenna elements, with at least two second-band radiators symmetrically arranged on both sides of the first-band radiator; wherein the parasitic elements are located between the first-band and second-band radiators, and the parasitic elements are used both to guide the electromagnetic field distribution of the first-band radiator and to reflect and guide the electromagnetic waves emitted by the second-band radiator; the several second-band radiators achieve omnidirectional coverage of the second band in a back-to-back configuration. The wideband airspace radiation device provided by this disclosure can eliminate the coverage blind spots of multi-band combined omnidirectional radiators, achieving effective protection of targets.

The application discloses a kind of super surface circularly polarized antennas, belong to wireless communication technical field, including: super surface, super surface includes a plurality of first super surface units and a plurality of second super surface units arranged in array, first super surface unit is located in the periphery of second super surface unit, and second super surface unit is the symmetrical structure formed by cutting first super surface unit;Dielectric substrate, dielectric substrate includes upper layer dielectric substrate and lower layer dielectric substrate;Driving patch, driving patch is located between upper layer dielectric substrate and lower layer dielectric substrate;Metal floor, metal bottom plate is arranged on the lower surface of lower layer dielectric substrate;Microstrip feed structure, through coupling gap and driving patch non-contact coupling;By unit array optimization, phase difference is generated in orthogonal radiation mode, and circularly polarized radiation is realized.50 ohm microstrip line feeding is used, and non-contact coupling excitation is realized by coupling gap and driving patch;Synergistic design realizes 31.5% impedance bandwidth, 20.4% axial ratio bandwidth, and full coverage WBAN5.15-5.825GHz frequency band.

The invention relates to a terahertz modulator based on change and BIC mode switching and a mode switching method thereof. The modulator comprises a silicon substrate, a metasurface and a VO2 patch. The silicon substrate provides structural support; the metasurface is arranged on the surface of the silicon substrate, is composed of a pair of metal split resonance notch rings in mirror symmetry, and can excite a anapore mode by forming a closed surface current loop, excite an A-BIC mode by structure parameter tuning, and excite an S-BIC mode by maintaining mirror symmetry. The VO2 patch is embedded into the gap of the gap on the surface of the metasurface, the conductivity is regulated and controlled by means of temperature so as to change the current distribution on the surface of the metasurface, and dynamic switching between a BIC mode and an apole mode is achieved. According to the invention, through excitation of non-radiation mode modulation, metal ohmic loss is avoided, the maximum modulation depth reaches 80% when the A-BIC is switched to the apole mode, and the modulation efficiency is significantly improved.

The invention provides an antenna assembly, electronic equipment and a control method, and relates to the technical field of electronic equipment. The antenna assembly comprises a first radiation branch knot and a second radiation branch knot which are vertically arranged, a first breaking joint is arranged between the radiation branch knots, and the first radiation branch knot and the second radiation branch knot are provided with a first feeding point and a second feeding point respectively; the feed power supply is electrically connected with the first feed point and the second feed point respectively; the switching device is arranged between the feed source and the second feed point and is used for switching a first switching state and a second switching state; in the first switch state, the length of the transmission line from the feed power supply to the second feed point is a first length; in the second switch state, the length of the transmission line from the feed power supply to the second feed point is a second length; the first length is different from the second length. The antenna assembly not only can support high-performance satellite communication, but also can reduce the performance loss of the antenna by optimizing the polarization radiation mode, thereby ensuring the stability and coverage range of communication.

The application is a high degree of freedom far-field customized compact circularly polarized planar lens antenna. The application relates to the technical field of radiative metasurface antennas. Due to the limitation of space feed, it is difficult for metasurfaces in the microwave band to be applied to integrated systems. Here, the application realizes precise far-field radiation mode manipulation. Two E-shaped unit superimpositions constitute a geometric phase-based metasurface unit, realizing 2pi range transmission phase coverage and high transmittance. The application method realizes highly customized far-field mode control. Several proof-of-concept RTM prototypes are designed and manufactured, realizing energy-controllable multi-beam, wide-angle deflection and customized beamforming. Simulation and experimental results verify that the proposed method and RTM structure can provide a compact wavefront modulation platform and realize highly accurate and customized far-field beamforming.

The application discloses a compact four-mode four-port antenna, and belongs to the antenna field. The compact four-mode four-port antenna comprises a first dielectric substrate, a second dielectric substrate, a metal ground plate and a third dielectric substrate which are sequentially stacked, the upper surface of the first dielectric substrate is provided with a segmented annular metal patch, the upper surface of the second dielectric substrate is provided with a circular metal patch, and the lower surface of the third dielectric substrate is provided with a microstrip feed line and a solder pad. The four-mode four-port antenna further comprises a first metal column, a second metal column and a third metal column, the segmented annular metal patch is electrically connected with the microstrip feed line through the first metal column, the circular metal patch is electrically connected with the microstrip feed line through the second metal column, and the solder pad is electrically connected with the metal ground plate through the third metal column. The circular metal patch is used for realizing three polarized radiation modes, and the segmented annular metal patch is used for realizing a fourth polarized radiation mode, so that the manufacturing demand of miniaturization and integration of communication equipment can be met.

The invention relates to a dual-polarized dielectric patch antenna array suitable for being closely arranged at intervals, which comprises a lower dielectric substrate, a metal reflection floor, an upper dielectric substrate and two dielectric patches arranged in an array, which are sequentially stacked from bottom to top, and is characterized in that a metal sheet is attached to the vertical surface of each dielectric patch in the Y-axis direction; capacitive coupling generated by the metal sheets is used for counteracting strong inductive coupling of two working modes of the adjacent dielectric patches, so that the isolation degree between the first port and the third port is improved, and H-surface decoupling is realized; and the attenuation constant of the TM011 mode of the antenna in an IV region is maximized by adjusting parameters, E-plane decoupling is realized, and the IV region is a region of the dielectric patch on one side of the forward direction of the Y axis. On the basis that a section and a complex decoupling structure do not need to be added, an ideal isolation effect and a distortionless radiation mode can be achieved, and coupling of the E face and the H face is restrained at the same time.

For example, an apparatus may include an antenna array, which may be configured to include a plurality of configurable-radiation-pattern antenna elements. For example, a configurable-radiation-pattern antenna element of the plurality of configurable-radiation-pattern antenna elements may have a configurable element-radiation-pattern. For example, the apparatus may include control circuitry, which may be configured to control an array-radiation-pattern of the antenna array. For example, the control circuitry may be configured to control the array-radiation-pattern of the antenna array according to an array-radiation-pattern setting, for example, by configuring a plurality of element-radiation-patterns for the plurality of configurable-radiation-pattern antenna elements based on the array-radiation-pattern setting.

This invention discloses a mobile terminal antenna structure and its performance improvement method, belonging to the field of mobile terminal antenna technology. To address the problems of low antenna radiation efficiency due to electromagnetic shielding of the metal frame and limited internal space in existing mobile terminals, as well as the difficulty in simultaneously achieving miniaturization and multi-band compatibility, the core solution of this invention is: creating a breakpoint in the metal frame; through the coordinated arrangement of the breakpoint, feeding structure, and grounding structure, guiding the radio frequency current on the metal frame to form a co-directional differential mode current, exciting the radiation mode of the PCB board, and expanding the effective radiation area of ​​the antenna; lumped elements can be loaded at the breakpoint to achieve resonant frequency modulation and multi-band compatibility. This invention does not require additional increase in terminal volume, can significantly improve antenna radiation efficiency, reduce the required net space for the antenna, and is compatible with various mobile electronic terminals with metal frames.

The invention provides a silicon photon gyroscope with a film-coated mode filtering double-Y waveguide integrated structure. The silicon photon gyroscope comprises a laser, a detector, a symmetrical double-Y waveguide, a first filter, a second filter, a third filter, a fourth filter, a first phase modulator, a second phase modulator and a ring, symmetrical optimization design is adopted for the symmetrical double-Y waveguides, namely mode excitation is reduced by conducting collaborative optimization on the front Y waveguide and the rear Y waveguide, the bifurcation angle of the front Y waveguide and the rear Y waveguide is controlled to be 8-12 degrees, the high-order mode excitation rate is controlled to be within 1%, and therefore space radiation mode errors and zero drift are remarkably reduced. A high-order mode excited in the beam splitting process is suppressed through the first and second filters, and a new mode of temperature gradient or stress introduction is prevented through the third and fourth filters; selective suppression of a high-order spatial mode is realized by adopting the filter with a film-coated structure, and meanwhile, low-loss transmission of a fundamental mode is kept, so that the zero-bias stability and the measurement precision of the silicon photon gyroscope are remarkably improved.

The embodiment of the application discloses a low-profile small-size wideband omnidirectional vertical polarization slot antenna, which comprises a dielectric plate arranged on the top of a metal radiator and in contact with the metal radiator, the metal radiator is in contact with the metal layer of the dielectric plate, the side wall of the metal radiator is provided with a slot, and an omnidirectional vertical polarization radiation mode is formed through equivalent magnetic current radiation of the slot; the metal feeding probe comprises an inner conductor and an outer conductor in a coaxial structure; a circular truncated cone-shaped metal cavity is formed in the metal shell, the inner conductor is connected with the bottom of the metal shell, the antenna radiator is arranged in the metal cavity, the outer conductor penetrates through the metal radiator, and the top end is in abutting contact with the metal layer of the dielectric plate and is fixedly connected through the assembly surface of the dielectric plate and the circular truncated cone-shaped shell to form a radome. The technical scheme provided by the embodiment of the application solves the problem that the existing omnidirectional antenna form is relatively complex in structure and it is difficult to realize more functions in one structure.

The invention provides an air conditioner tail end system combining convection and radiation modes, and belongs to the technical field of air conditioner tail end systems.The air conditioner tail end system comprises a ceiling radiation refrigeration plate, a ground radiation heating plate, a humidifying and purifying fresh air fan, a fan coil and other tail end devices, a control chip is combined to establish a multi-area cooperative control module, and the multi-area cooperative control module is connected with the ceiling radiation refrigeration plate, the ground radiation heating plate, the humidifying and purifying fresh air fan and the fan coil. A double-layer game optimization model is adopted to realize coordination control of energy efficiency ratio maximization and comfort level optimization; a state matrix is constructed by collecting multi-region environment data, intelligent judgment is performed based on temperature and differential pressure threshold values, optimal operation parameters are solved by using a multi-objective optimization algorithm, the operation state of each device is dynamically adjusted, and a technical path of closed-loop feedback control is formed. The technical problem that intelligent cooperative control over convection and radiation modes cannot be achieved through a multi-area air conditioning system is solved.

The invention relates to an antenna structure of an automobile tire pressure sensor, and the antenna structure comprises a radiation section which is of a spiral coil structure and is configured to be in a normal mode radiation mode under the working frequency and generate an electric dipole radiation field and an equivalent magnetic dipole radiation field at the same time, and the phases of the two radiation components are the same. The limitation of a single radiation mode of a traditional loop antenna is broken through, the symmetrical spiral dipole structure is adopted, the antenna can excite electric dipole radiation and equivalent magnetic dipole radiation at the same time, the two radiation components are the same in phase, far fields are overlapped in the same phase, and the radiation gain of the antenna is remarkably higher than that of the traditional loop antenna. The radiation gain can be effectively improved, the TPMS signal transmission reliability is greatly improved, and the packet loss rate is reduced.

The invention discloses a waveguide feed double-frequency low-profile antenna of a conformal small unmanned aerial vehicle, and belongs to the technical field of antennas. According to the waveguide feed double-frequency low-profile antenna, through double-layer arrangement of the waveguide feed layer and the dipole radiation layer, a slot antenna is formed on the waveguide feed layer, and a dipole antenna is formed on the dipole radiation layer, so that the waveguide feed double-frequency low-profile antenna integrates the slot antenna and the dipole antenna and has two radiation modes; therefore, the antenna can be used as a dual-frequency antenna, the slot antenna works in an S frequency band, and the dipole antenna works in a 5G frequency band. The antenna is applied to a small unmanned aerial vehicle, has the characteristics of compact structure and high gain, has the capability of accessing a public network and a star network, and solves the problem that an existing unmanned aerial vehicle antenna does not have the dual-band communication capability of a 5G band and an S band.

A millimeter-wave antenna (10) includes: a first metal layer (2), a first dielectric substrate (1), a second metal layer (3), a second dielectric substrate (4), and a third metal layer (5) stacked sequentially. The first dielectric substrate (1) has an integrated waveguide surrounded by multiple isolation pillars (11); the second metal layer (3) has a through-feed slot (31); the second dielectric substrate (4) has multiple sets of feed pillars (41); the third metal layer (5) includes a metal frame and multiple filter patches (511), which are respectively connected to the multiple sets of feed pillars (41). In this embodiment, the integrated waveguide surrounded by multiple isolation pillars (11) facilitates the reduction of the millimeter-wave antenna (10) loss; at the same time, the feed energy fed along the integrated waveguide can realize the radiation mode of a magnetoelectric dipole through the filter patches (10) to ensure a large operating bandwidth and bandwidth ratio. (Figure 11)

This application provides an antenna device and a communication device. By electrically connecting the active vibrator of the antenna device to the second end of a first conductor, and electrically connecting the first end of the first conductor to radio frequency signal ports on a circuit board, radio frequency signal transmission is achieved between the radio frequency signal ports and the active vibrator. Simultaneously, the first end of a switching element is electrically connected to the second end of the first conductor through a bias circuit, and the second end of the switching element is electrically connected to the second end of a second conductor through a bias circuit, with the first end of the second conductor grounded. This allows the bias circuit to control the on and off states of each switching element. In this way, the antenna device can freely switch between omnidirectional and directional radiation modes, while reducing the number of cables between the circuit board and the antenna body. Furthermore, by setting a radio frequency signal suppression circuit on the sub-bias circuit to suppress radio frequency signals from entering the bias circuit, the antenna radiation performance is improved.

The invention provides a radiation control network node cooperative communication method and system, and relates to the technical field of computers, and the method comprises the steps: obtaining background radiation data in a target area and the original information content of to-be-sent data of each node; obtaining independent initial virtual radiation potential energy of each network node according to the background radiation data and the original information content; establishing a coupling relationship for all nodes according to the initial virtual radiation potential energy to obtain a continuous situation game field; obtaining a potential energy adjustment vector according to the continuous situation game field; deciding the transmitting state of the node according to the potential energy adjustment vector to obtain a transmitting spectrum form; the method comprises the following steps: performing closed-loop processing on a communication process according to an emission spectrum form, and iteratively updating historical background radiation data by taking a radiation state generated by actual emission as new environment feedback data until virtual radiation potential energy of a node does not change any more, so as to obtain a steady-state communication strategy enabling a network radiation mode to converge to a background.

The present application belongs to the technical field of microwave antennas, and specifically provides a complementary source metasurface antenna with wide lobe radiation characteristics, to meet the requirements of communication antennas in mobile satellite communication systems, i.e., wide lobe radiation performance, high gain and low profile. The present application changes the omnidirectional radiation mode of the floor to double-beam radiation on the two sides of the ±48° direction by introducing a large-size floor, and then realizes mode synthesis with the omnidirectional side radiation mode of the metasurface structure, thus achieving a metasurface antenna with wide lobe radiation characteristics. Meanwhile, the introduction of a metal microstrip line in the middle of the metasurface structure makes the half-power lobe of the radiation mode more flat and the lobe width larger. Finally, the present application changes the radiation pattern of the feed gap radiation mode by large-size floor design without introducing a monopole antenna, to realize pattern complementation and wide lobe radiation characteristics, while having high gain, lower profile and simple structure.

This invention discloses a time-division multiplexing system for power generation and controllable space electromagnetic pulse radiation based on a conductive tether, belonging to the field of aerospace electric tether technology. The invention uses a single retractable conductive tether as the core carrier and adopts a time-division multiplexing topology. A fully integrated radiation-resistant solid-state switch array within the cabin achieves physical-level electrical isolation and nanosecond-level disconnect-before-make switching between power generation and pulse radiation modes. The controllable space electromagnetic pulse radiation is actively excited high-energy pulse radiation, with high-energy nanosecond-level electromagnetic pulses actively injected through a pulse emission module, significantly increasing radiation power and possessing practical value for electromagnetic passivation of space debris. In power generation mode, the tether and space plasma form a closed loop to cut the geomagnetic field and generate electricity. In pulse radiation mode, the tether acts as an end-fed directional long-line antenna radiating electromagnetic pulses. Active sheath control stabilizes the sheath potential and suppresses losses. Radio frequency isolation achieves electrical decoupling between the cabin section and the radiation section, and the mode switching timing does not depend on the plasma's millisecond-level relaxation response, avoiding the risks of mutual exclusion and self-interference. This invention resolves the fundamental conflict between single-strand conductive tether power generation and pulsed radiation. It exhibits strong dynamic stability and meets electromagnetic compatibility standards. The core components are based on on-orbit verification technologies such as TSS-1R, PMG, and T-Rex, making it highly feasible for engineering applications. It can be applied to aerospace scenarios such as satellite on-orbit operation and maintenance and space debris management.

The application relates to a dual-frequency dual-mode aperture sharing conformal ultra-wideband antenna and application thereof, and belongs to the technical field of antennas. The antenna comprises a substrate layer, a radiator layer and a ground layer which are sequentially stacked, and the substrate layer, the radiator layer and the ground layer are all made of conductive fabric; the radiator layer is provided with a radiation patch which is used for resonating in a monopole mode; and the radiation patch is provided with a double-cone-shaped slot which is used for resonating in a violin mode. The antenna can be flexibly switched between two radiation modes through different excitation ports, can realize ultra-wideband radiation with different beam characteristics in two frequency bands, has small influence on a human body, has the characteristics of flexibility and low profile, and is easy to be applied in clothes or other human body wearable electronic devices.

The application discloses a directional pattern reconfigurable filtering antenna based on a paper folding structure, comprising an antenna radiation structure arranged on an antenna floor, wherein the antenna radiation structure comprises a paper folding structure in the shape of a cuboid, a radiation patch, a monopole radiation patch, a metal branch, a filtering feed line, a first dielectric substrate, a second dielectric substrate and a coaxial feed line. The paper folding structure serves as a radiation mode switching structure, realizing switching between an omnidirectional radiation mode and a directional radiation mode. A hairpin microstrip line and a coupling microstrip line structure are adopted as filtering structures, and a feeding structure is composed of the filtering feed line and a rectangular metal branch. The application solves the problems of additional insertion loss caused by switching the radiation mode by using a PIN diode, increased manufacturing cost and complexity caused by introducing a bias circuit and the problem of being unable to suppress out-of-band interference signals.

The application discloses a compact four-mode four-port antenna, and belongs to the antenna field. The compact four-mode four-port antenna comprises a first dielectric substrate, a second dielectric substrate, a metal ground plate and a third dielectric substrate which are sequentially stacked, the upper surface of the first dielectric substrate is provided with a segmented annular metal patch, the upper surface of the second dielectric substrate is provided with a circular metal patch, and the lower surface of the third dielectric substrate is provided with a microstrip feed line and a solder pad. The four-mode four-port antenna further comprises a first metal column, a second metal column and a third metal column, the segmented annular metal patch is electrically connected with the microstrip feed line through the first metal column, the circular metal patch is electrically connected with the microstrip feed line through the second metal column, and the solder pad is electrically connected with the metal ground plate through the third metal column. The circular metal patch is used for realizing three polarized radiation modes, and the segmented annular metal patch is used for realizing a fourth polarized radiation mode, so that the manufacturing demand of miniaturization and integration of communication equipment can be met.

A measurement reporting method and an apparatus, the method including receiving, from network devices, reference signals based on beams, obtaining measurement results by measuring the received reference signals, where the measurement results comprise reference signal received powers, receiving information about transmit beams from the network devices, and determining downlink angles of departure relative to the network devices based on the measurement results and the information about the transmit beams, where the information about the transmit beams includes at least one of characteristic information of the transmit beams or beam radiation mode information of the transmit beams.

An antenna system (100), comprising: a first substrate (146); a slot array (170) defined by a conductive layer (172) arranged on the first substrate (146) with a coplanar waveguide (106) connecting a number of side slots (176) arranged in a line forming the slot array (170); a second substrate (140) that is spaced apart from the first substrate (146); a mass plane (148) defined on the second substrate (140); and a defined volume waveguide (108) arranged between the first substrate (146) and the second substrate (140), wherein the system (100) is configured to emit a radiation pattern in a hybrid mode from a combination of the slot array (170) and the defined volume waveguide (108), and where each of the number of side slots (176) has an elliptical shape.

A wireless power-supply device is configured to realize a variety of radiation patterns. The wireless power-supply device includes; a meta-surface including a plurality of waveguide patches and a plurality of switches arranged in association with the plurality of waveguide patches; a control device for controlling a state of power supply to the plurality of switches; and an antenna for emitting electromagnetic waves for transmitting power. The wireless power-supply device is configured to change a relation of connection of the plurality of waveguide patches by turning on or off the plurality of switches, so as to change a radiation pattern of electromagnetic waves radiated from the antenna.