899 results about "Antenna radiation" patented technology

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 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 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 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 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 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.

The invention designs a short-wave over-the-horizon communication comprehensive simulation analysis method for the problems of cascade and comprehensive analysis of antenna radiation characteristics and radio wave propagation environments. The method comprises the steps of performing radiation characteristic simulation on a short-wave antenna, constructing an ionosphere model, simulating a propagation path of a short-wave signal in an ionosphere by adopting a ray tracing technology, integrating antenna characteristics, an ionosphere environment and a propagation mechanism, and calculating falling area energy distribution of the signal. And comprehensive evaluation and analysis of the reachable range of short-wave beyond-visual-range communication are realized. According to the method, the signal propagation path and fading characteristics of the signal from the radiation source to the receiving tail end can be comprehensively mastered, and guidance and basis are provided for antenna selection, erection, coverage area analysis and communication quality estimation in practical engineering application of short-wave beyond visual range communication.

The invention relates to an antenna structure and electronic equipment, which is characterized in that an antenna radiation layer, a negative magnetic conductivity layer and a negative dielectric constant layer are respectively arranged on a top layer, a middle layer and a bottom layer of a supporting structure, and orthographic projection parts of the negative magnetic conductivity layer and the negative dielectric constant layer in a first direction are overlapped; compact laminated layout and effective electromagnetic coupling of the three functional layers are realized. According to the design, the negative magnetic conductivity layer and the negative dielectric constant layer generate a synergistic effect to form a double-negative superconducting characteristic, and meanwhile, the radiation performance of the antenna radiation layer is improved through a strong coupling effect between the antenna radiation layer and the double-negative superconducting characteristic, so that the overall size of the antenna is remarkably reduced, and the working efficiency of the antenna in multiple working frequency bands is also improved; and a high-performance antenna solution is provided for miniaturized communication equipment.

The invention relates to a hemispherical inductively coupled plasma source with adjustable density distribution, and belongs to the technical field of plasma generating devices. Comprising an upper cover body, a lower cover body, a flange and a coil, the upper cover body, the lower cover body and the flange are sequentially and coaxially arranged from top to bottom, a cavity is formed between the upper cover body and the lower cover body, a connector pipe is arranged on the side face of the flange, the cavity is communicated with the connector pipe, and the coil is arranged on the outer side of the cavity. The method is mainly used in the field of antenna radiation performance regulation and control, and effective regulation and control of antenna radiation characteristics can be realized.

The application discloses a large-scale plane one-way folding array antenna full-working-condition electric performance prediction method, which comprises the following steps: (1) determining a folding position according to a folding angle under different working conditions; (2) determining an array element position after folding according to the folding position and array antenna geometric parameters; and (3) determining a mode excitation coefficient according to each array element position information and single array element mode information, and then calculating electric performance under different working conditions. The application can quickly and accurately analyze folding array antenna radiation and scattering, and has important engineering significance for array antenna analysis and design.

The invention relates to the technical field of communication control, and provides a total radiator antenna applied to a wearable device and the wearable device, the total radiator antenna comprises a metal frame radiator, a feeding point, a ground feeding point and a radio frequency front end module; the metal frame radiator has no physical breaking joint and is configured as a frame structure of the wearable device; the at least four feeding points are distributed along the circumferential direction of the metal frame radiator and respectively correspond to signal excitation of different frequencies; the at least four ground feeding points are distributed along the circumferential direction of the metal frame radiator and are alternately arranged with the feeding points, and each ground feeding point is selectively grounded through a switchable filter circuit; and the radio frequency front end module is connected with the feeding point through an antenna switch and is configured to control the cooperative working state of the feeding point and the ground feeding point so as to realize radiation and reception of multi-band signals. According to the invention, under the condition of breaking through the physical size limitation of wearable small-size equipment, the performance target of antenna radiation of different frequency bands can be realized.

The utility model relates to the technical field of airborne equipment mechanism design, in particular to an embedded beacon antenna structure design, which comprises an aircraft skin and an antenna cover plate, a signal transmission assembly comprises an antenna radiation rod fixed on the inner bottom wall of an antenna shell, a feed head is fixedly arranged on the inner right wall of the antenna shell, and the feed head is fixedly arranged on the inner right wall of the antenna shell. The left end of the feed head is fixedly connected with a coupling ring, a capacitive load is fixedly installed on the inner left wall of the antenna shell, and an anti-interference assembly layer is arranged in the antenna shell. According to the embedded beacon antenna structure design, the antenna radiation rod, the feed head, the coupling ring and the capacitive load structure are all arranged in the antenna shell, and then the antenna shell is embedded into the aircraft through the aircraft skin, so that the antenna structure and the surface of the aircraft are conformal, and the influence on the overall aerodynamic performance of the aircraft is reduced; and the first shielding layer and the second shielding layer are additionally arranged in the antenna shell, so that the anti-interference capability of the beacon antenna during signal transmission can be further improved.

The invention provides a dual-frequency common-caliber antenna radiation unit and a dual-frequency common-caliber antenna, and relates to the communication and antenna technology, and each radiation unit comprises a K-frequency-band folded dipole, four Ka-frequency-band microstrip patches, and two groups of feed baluns in orthogonal layout. The Ka frequency band microstrip patch is coupled with the feed network layer through two H-shaped Ka frequency band coupling gaps which are arranged in an orthogonal mode, an orthogonal feed balun is adopted to achieve selectable K frequency band dual-linear polarization, left-hand circular polarization or right-hand circular polarization, and an orthogonal H-shaped gap is adopted to achieve selectable Ka frequency band dual-linear polarization, left-hand circular polarization or right-hand circular polarization. The dual-frequency common-caliber antenna comprises an antenna layer, a feed network layer, a strip line and a waveguide switching layer, the antenna layer comprises radiation units in a periodic array, and through the technical means of bridging, vertical conductive via holes and the like, the number of layers of PCBs is reduced, meanwhile, the high-density feed network layout is achieved, and the overall performance of the antenna is improved. The K frequency band / Ka frequency band common aperture design and the polarization-selectable multi-polarization application are effectively realized.

The invention discloses a throwing sensor integrated with a millimeter-wave radar and a use method. The sensor comprises a shell, a millimeter-wave radar detection module and a printed circuit board, wherein the millimeter-wave radar detection module and the printed circuit board are located in the shell; wherein the millimeter wave radar detection module comprises an antenna, a radiation patch, an RDL layer and a control chip; a radiation window is arranged on the printed circuit board; the antenna is located on one side face of the printed circuit board, and the antenna and the printed circuit board are connected in an embedded mode through a first metal through hole. The radiation patch, the RDL layer and the control chip are positioned on the other side surface of the printed circuit board; the radiation patch and the control chip are located on the two side faces of the RDL layer respectively, and the radiation patch is further located in the radiation window. The RDL layer is provided with a first signal window, and the control chip is connected with the radiation patch through the first signal window. The control chip feeds power to the antenna radiation structure, so that the transmission loss is reduced, and the transmission efficiency is improved.

The invention relates to the technical field of antennas, and provides an antenna, a communication method and terminal equipment, and the method comprises the steps: attaching a metal floor to a first surface of a dielectric substrate; the first excitation element and the second excitation element are respectively arranged on the first side and the second side of the metal floor, and the sizes of the two elements are related to a target frequency band; an inner conductor and an outer conductor of the first feed assembly are correspondingly connected with a first feed point of the first excitation element and the metal floor respectively; an inner conductor and an outer conductor of the second feed assembly are correspondingly connected with a second feed point of the second excitation element and the metal floor respectively; the first feed assembly is used for providing first excitation current for the first excitation element; the second feed assembly is used for providing a second excitation current for the second excitation element; the first excitation current and the second excitation current with different phase differences can present different current distributions on the metal floor, so that the purpose of antenna radiation beam steering is achieved, the technical effect of wide beams is achieved, and thus space direction coverage on a target frequency band is achieved.

The utility model relates to a middle frame assembly and electronic equipment, and the middle frame assembly comprises a middle frame which comprises a side wall and a bottom plate, and the bottom plate and the side wall are connected to form a functional device cabin; the frame is arranged on the peripheral side of the bottom plate, a gap is formed between the frame and the side wall, the frame is partially configured to be an antenna radiation section, the side wall is provided with a slotting structure communicated with the gap, and the slotting structure and at least part of the antenna radiation section are oppositely arranged. According to the invention, the slotting structure is arranged on at least part of the side wall, opposite to the antenna radiation section, of the functional device bin, so that the clearance environment near a strong current point of the antenna is improved under the condition that the structural stress of the whole machine is not affected, the purpose of improving the antenna performance is achieved, and the requirements of users on a large screen-to-body ratio, a narrow frame and a large battery are met.