81 results about "Antenna miniaturization" patented technology

The utility model discloses a balun-integrated full-wave oscillator radiation unit, and aims to solve the problems that a low-frequency bowl-shaped oscillator and a high-frequency die-cast half-wave oscillator are used in the conventional high-low frequency nesting scheme, so that the requirements of miniaturization and light weight of an antenna are difficult to meet, the processing cost is extremely high, and the cost is low. And meanwhile, the high-frequency oscillator is arranged in the bowl-shaped oscillator, so that the horizontal plane wave width deformation of the high-frequency oscillator is caused, the gain is influenced, and the market demand cannot be met. The Balun-integrated full-wave oscillator radiation unit comprises a fixed support and a PCB radiation plate installed on the fixed support. The structure of the full-wave oscillator is relatively simple, assembly can be completed only by installing the single-balun integrated feed sheet in the fixing support and welding and fixing the single-balun integrated feed sheet and the PCB radiation plate, miniaturization design can be achieved through the microstrip technology, the printed circuit technology and the like due to the fact that single-face embedded coupling is adopted, the requirement of miniaturization equipment is met, machining is easy, and cost is low. The production efficiency can be greatly improved, and the production cost is reduced.

The invention discloses a folding transmission array antenna, a communication module and electronic equipment, and belongs to the technical field of antennae, the antenna comprises a transmission surface, a reflection polarization conversion surface, a feed source and a plurality of support pillars, the transmission surface is provided with a plurality of transmission array units, the reflection polarization conversion surface is provided with a plurality of reflection polarization conversion metasurface units, and the support pillars are arranged on the transmission array units. The reflective polarization conversion metasurface unit is made of a near-zero refractive index metamaterial; the transmission array unit is composed of a first dielectric plate, a second dielectric plate, a first metal layer, a second metal layer and a third metal layer; the reflection polarization conversion metasurface unit comprises a third dielectric plate and a metal plate, and a fourth metal layer and a fifth metal layer are arranged on the two faces of the third dielectric plate respectively; the communication module adopts the antenna; the electronic equipment adopts the antenna. The antenna profile is further compressed under the condition that the geometric position of the feed source is not changed, meanwhile, feed source blocking is avoided, high gain can be kept in a specific frequency band, and the dual requirements of a modern communication system for antenna miniaturization and high performance are met.

The invention relates to an antenna assembly and a vehicle. The antenna assembly comprises a dielectric body, a first antenna structure, a second antenna structure and a metal frame body. The projections of the plurality of second antenna structures on the dielectric body along the thickness direction of the dielectric body are arranged around the circumferential direction of the first antenna structure, the plurality of second antenna structures are rotationally symmetrical about the center of the first antenna structure, and each second antenna structure is coupled with the first antenna structure. The metal frame body is arranged around the periphery of the first antenna structure, and the metal frame body is connected with the dielectric body. The low-profile antenna structure is realized, the influence caused by the surface wave effect of the dielectric body is improved, the mutual coupling interference between double frequencies is reduced, and the antenna gain and the antenna bandwidth are improved. Besides, the metal frame body can restrain back lobe level energy, capacitance coupling is formed between the first antenna structure and the metal frame body, capacitance coupling is formed between the second antenna structure and the metal frame body, the antenna miniaturization design is further achieved, the overall size is reduced, and the installation space can be prevented from being limited.

The invention relates to a miniaturized Vivaldi antenna, in particular to an ultra-wideband miniaturized Vivaldi antenna. The invention aims to solve the problems that the miniaturization of the antenna cannot be realized fundamentally by using a high-dielectric-constant dielectric substrate, the antenna depends on the property of the dielectric substrate, and the radiation performance of the antenna is influenced by the dispersion effect in a millimeter wave frequency band. The antenna comprises a feed structure and two radiation structures. The two radiation structures are arranged in a herringbone shape, the feed structure is horizontally arranged on the lower portions of the two radiation structures, and the two ends of the feed structure are connected with the lower portions of the two radiation structures in an inserted mode respectively. The invention belongs to the technical field of communication.

The invention relates to the technical field of mobile communication antennas, and discloses a phase shifter cavity structure which comprises two cavities which are integrally extruded, formed and laminated, power division networks and phase shifting media are arranged in the two cavities, and the two laminated cavities are arranged in a staggered mode. The power division networks and the phase shifting media arranged in the two cavities are correspondingly arranged in a staggered manner; lateral outgoing of the connecting cable can be realized, so that the phase shifter can be arranged on a wide side surface, namely the top wall is vertical to the reflecting plate during antenna layout, and interference is not easy to occur during miniaturized layout of a multi-frequency antenna.

This invention relates to the field of antenna technology, and particularly to a miniaturized circularly polarized antenna with a wide axial ratio and wide beamwidth. The antenna includes a dielectric substrate, a circular radiating patch unit, metal shorting posts, a coaxial differential feed structure, and a metal ground plane. The circular radiating patch unit consists of a pair of orthogonal fan-shaped cross-printed dipoles. A slot structure is added in the middle along the X-axis to divide the radiator into left and right parts, and three metal shorting posts are added to the end of each fan-shaped cross-printed dipole structure. The feed structure is a differential-feed coaxial cable, with its inner and outer conductors contacting the left and right halves of the circular radiating patch unit, respectively. Simultaneously, due to the slight difference in curvature between the two orthogonal fan-shaped printed dipoles, a phase difference is formed between the pair of orthogonal modes of the circular radiating patch unit, ultimately achieving circularly polarized radiation of the antenna. A metal short-circuit post is applied to the electric field zero of a conventional printed dipole, forming a new half-mode operating mode at low frequencies. Simultaneously, the slot structure improves the impedance characteristics of the half-mode, enabling antenna miniaturization. Due to the radiation contribution of the metal short-circuit post in the horizontal direction, the axial ratio beamwidth of this circularly polarized antenna is significantly extended. This application exhibits excellent forward radiation characteristics, along with miniaturization, a wide axial ratio beamwidth, simple structure, low cost, and ease of fabrication.

The invention relates to the technical field of antennas, and discloses an antenna structure, a generation method thereof, a radio frequency device and equipment. The antenna structure comprises a dielectric substrate which comprises a first surface and a second surface opposite to the first surface; the first surface comprises ground; the second surface comprises a radiation patch; the feeder line is used for feeding power to the radiation patch; wherein the radiation patch comprises at least one grounding area, and the radiation patch adjusts the electromagnetic field distribution on the surface of the radiation patch through the grounding area. According to the antenna, through arrangement of the grounding area and adjustment of electromagnetic field distribution on the surface of the radiation patch, adjustment of a directional diagram is achieved, the radiation effect of the antenna is improved, the antenna structure is simple, design and deployment implementation difficulty is low, and miniaturization of the antenna size is facilitated.

The application relates to a single-layer multi-frequency GNSS antenna, which comprises a patch antenna body, the patch antenna body comprises a dielectric substrate and a ground plane, the center of the upper surface of the dielectric substrate is provided with a clover-shaped high-frequency radiation metal plate, the periphery of the high-frequency radiation metal plate is provided with a low-frequency radiation metal plate, a first non-metal gap is arranged between the high-frequency radiation metal plate and the low-frequency radiation metal plate, four edges of the low-frequency radiation metal plate are provided with accommodation grooves, long-strip-shaped radiation metal patches are arranged in the accommodation grooves, and rectifier radiation parts are arranged between four corners of the low-frequency radiation metal plate and adjacent two accommodation grooves, and the four rectifier radiation parts correspond to four sharp corners of the clover-shaped high-frequency radiation metal plate. The application belongs to the technical field of antennas, the radiation performance of the antenna is optimized through a special geometric layout, the foundation of antenna miniaturization and low cost is laid, and the dual-band coverage and good radiation characteristics are preliminarily ensured.

The application provides a piezoelectric driving self-biased very low frequency mechanical transmitting antenna and a preparation method thereof. The preparation method comprises the following steps: step one, preparing piezoelectric ceramic material; step two, cutting and slotting; step three, pouring resin; step four, cutting layer sheet; step five, packaging; step six, polarization treatment; step seven, preparing adhesive layer; and step eight, hot-pressing compounding. Compared with the existing magnetoelectric antenna, the self-biased very low frequency mechanical transmitting antenna has the characteristics of self-bias, high piezoelectricity, miniaturization, no additional noise source and electromagnetic interference, and the like, has the advantages of high stress transmission efficiency and small ohmic loss, can realize the miniaturization requirement of the magnetoelectric mechanical antenna, is easy to form a large-scale array, improves the magnetic transmitting performance under zero bias, and achieves the low frequency communication effect.

A low-loss hexagonal ferrite material in S and C bands and its preparation method, belonging to the technical field of ferrite material preparation. The hexagonal ferrite material includes a main phase and an additive. The main phase is Ba5Cu 2‑x Ni x Ti3Fe 12 O 31 , where x = 0.5 to 1, and the additive is SiO2; the additive accounts for 0.5 to 1.5 wt% of the mass of the main phase; by changing the ratios of Cu 2+ , Ni 2+ , the magnetocrystalline anisotropy, magnetic permeability and natural resonance frequency are regulated, and the real part of the magnetic permeability μ' ≥ 1.8, the magnetic loss tangent tanδ m ≤ 0.08, the real part of the dielectric constant ε' ≥ 10, and the dielectric loss tangent tanδ d ≤ 0.01 are achieved in the S and C bands. It can be used for the miniaturization of Sub-6GHz antennas, improving the antenna bandwidth and reducing the impedance mismatch.

The invention provides a low-profile miniaturized dual-band antenna based on LC resonance loading, and relates to the technical field of microstrip antenna structure design, the low-profile miniaturized dual-band antenna comprises a metal floor, a dielectric plate, a radiation structure, an LC resonance structure and a feed structure, the dielectric plate is fixedly arranged right above the metal floor; the radiation structure is arranged right above the dielectric plate, the radiation structure is composed of a plurality of coaxial metal circular patches, and a plurality of through holes are formed in the radiation structure; the LC resonance structure is arranged in the through hole of the radiation structure; the feed structure is arranged on the center line of the radiation structure, and the top end of the feed structure passes through the dielectric plate and is connected with the radiation structure. The problems of miniaturization and low profile of a traditional low-frequency antenna are solved, the size is remarkably reduced, and meanwhile the dual-band working capacity and good radiation performance are maintained.

The invention discloses a multi-cross-slot coupled feed OAM antenna based on a dielectric resonator, and the antenna comprises four parts: the dielectric resonator, a reflection plate, a dielectric substrate, and a feed network which are stacked together from top to bottom. The dielectric resonator is integrally cylindrical, a cylindrical counter bore structure is arranged in the center of the interior of a cylindrical main body, and a cross recess structure extends to the periphery by taking a cylindrical counter bore as the center; and the surface of the reflecting plate is rotationally and periodically provided with etched cross-shaped grooves. Vortex waves are generated by combining the single-dielectric resonator with multi-cross-slot coupling feeding, the feed network generates excitation phase difference by using different structures, and meanwhile, distribution of current on the surface of the antenna can be changed by combining the cross slots, so that miniaturization design of the antenna is facilitated.

The application relates to the technical field of communication devices, and provides a phase shifter and a base station antenna. The phase shifter comprises a substrate, a rotating piece and a driving assembly. The rotating piece is arranged to rotate on the substrate. The side of the rotating piece facing the substrate is provided with a coupling line. The side of the substrate facing the coupling line is provided with an input line and an output line. The coupling line is coupled and connected with the input line and the output line. The driving assembly is in transmission connection with the rotating piece. Under the driving of the driving assembly, the rotating piece rotates relative to the substrate, and the length of the transmission line of the phase shifter changes correspondingly. Under the condition that the driving assembly drives the rotating piece to rotate relative to the substrate, the length of the transmission line of the phase shifter can change correspondingly, so that the purpose of phase adjustment is achieved. In addition, the substrate and the rotating piece are arranged in a stacked mode, the structure is simple, the occupied space is small, and the antenna can be designed to be small in size and light in weight.

The invention relates to the technical field of antennas, in particular to a miniaturized low-profile circularly polarized microstrip antenna with double axial ratio points. A circular radiation patch unit is adopted, and the circular radiation patch unit comprises a cross dipole, a rectangular feed strip, a fan-shaped NFRP unit and an L-shaped NFRP radiation unit. The cross dipole patch is symmetrical along the X axis on the whole and is formed by crossing a pair of printed dipoles of which the tail ends are of fan-shaped structures, metal short circuit columns are loaded at the tail ends of the fan-shaped structures so as to realize the miniaturization of the antenna size, the coaxial feed structure feeds a rectangular strip extending from the cross dipoles in the + X axis direction, and the Left-hand polarization (LHCP) of the antenna is realized. The NFRP patch comprises a fan-shaped NFRP patch and two L-shaped NFRP patches, the fan-shaped NFRP patch is embedded in the-X axis direction of the crossed dipole, and a new resonance mode is introduced for the antenna so as to generate a second axial ratio point; the two L-shaped NFRP patches are respectively embedded in the-Y-axis direction and the + Y-axis direction of the crossed dipole and are used for reducing the frequency division ratio of two axial ratio points, and at the moment, the axial ratio bandwidth of the original crossed dipole circularly polarized antenna is effectively expanded.

The invention discloses a miniaturized broadband microstrip antenna, which is suitable for indoor positioning systems such as Bluetooth beacons and the like, and comprises a dielectric substrate, a patch layer arranged on the upper surface of the substrate, and a metal grounding plate positioned on the lower surface of the substrate, the patch layer comprises a radiation patch and a microstrip line connected with the radiation patch; the radiation patch is of a rectangular structure, and the radiation patch is provided with a cross-shaped parting slotting structure. A staggered parallel multi-strip-shaped defected ground structure is introduced to the metal grounding plate, and the staggered parallel multi-strip-shaped defected ground structure is a structure of five rectangular grooves which are arranged in a staggered parallel mode. According to the structure provided by the invention, the miniaturization and broadband performance of the antenna can be considered, and a new technical path is provided for the design of a small wireless terminal antenna.

The utility model provides a high gain antenna, which comprises an antenna body and a metal baffle plate arranged around the antenna body, the antenna body comprises a feed pin, a dielectric substrate and a radiation electrode fixed on the surface of the dielectric substrate, the feed pin is electrically connected with the radiation electrode, and the height H of the metal baffle plate is not greater than the maximum height D of the antenna body. And the minimum distance L1 from the metal baffle plate to the center of the feed needle and the maximum side length L of the dielectric substrate meet the condition that L1 is greater than or equal to 1 / 2 * L. The unique structure that the metal baffle is arranged around the antenna is adopted, the electromagnetic environment around the antenna is effectively changed by means of the reflection, shielding and diversion effects of the metal baffle on electromagnetic waves, and the effect of remarkably improving the antenna gain in a limited space is successfully achieved. The dual requirements of modern electronic equipment for antenna miniaturization and high performance are fully considered, the bottleneck of gain improvement in a limited space in the traditional antenna design is broken through, and powerful support is provided for efficient and stable operation of a satellite navigation system in a complex environment.

The present invention discloses an ultra-wideband (UWB) antenna, which relates to the technical field of antennas. The ultra-wideband (UWB) antenna includes a printed circuit board (PCB). A patch antenna is surface-mounted on the surface of the PCB. The patch antenna includes a dielectric substrate. A first conductor and a coupling portion are disposed on the upper surface of the dielectric substrate. A second conductor and a third conductor are disposed on the surface of the PCB. The first conductor is connected to the second conductor, and the end of the second conductor is connected to the reference ground plane of the PCB. The coupling portion is directly connected to the third conductor. In the patch antenna of the present invention, the dielectric substrate of the patch antenna uses a high dielectric constant material to miniaturize the antenna, which is convenient for integration into wireless devices, facilitating integration by designers and wireless device modules. While miniaturizing, high performance is also achieved, saving space for wireless device manufacturers, providing an antenna solution for the miniaturization of devices, and also saving costs, providing a highly integrated antenna solution for the commercialization of ultra-wideband (UWB) technology.

The invention discloses a miniaturized metasurface broadband wide-angle scanning circularly polarized antenna, and belongs to the technical field of antennas. A wide-angle scanning phased-array antenna can be formed by using the miniaturized metasurface broadband wide-angle scanning circularly polarized antenna as a unit. The miniaturized metasurface broadband wide-angle scanning circularly polarized antenna comprises three layers of dielectric plates, four metal layers and a group of metalized via holes. And by utilizing the non-linear characteristic of a metasurface dispersion curve, the first-order resonant frequency and the second-order resonant frequency are fused to realize broadband radiation. The metasurface antenna is miniaturized by increasing the propagation constant, so that the array element spacing in the array is reduced, and wide-angle scanning is realized. The invention has the characteristics of few layers, small size, large bandwidth, wide-angle scanning and the like.

The application discloses a series feeding directional pattern shaped patch antenna, which is a compact, low-cost, high-gain and arbitrary beam shape realizable series feeding antenna, and achieves the purpose of miniaturization of the shaped antenna. The antenna comprises a dielectric substrate, a feeding line, a plurality of radiation patches and a metal grounding plate. The dielectric substrate comprises oppositely arranged top and bottom surfaces; the feeding line and the radiation patches are attached to the top surface of the dielectric substrate; and the metal grounding plate is attached to the bottom surface of the dielectric substrate. The plurality of radiation patches are distributed along the feeding line, and a slot structure one is formed on the radiation patches; and a slot structure two is formed at a set position of the feeding line. The application realizes the accurate control of the amplitude and phase of the unit through the special design of the series feeding antenna and the radiation unit, so as to achieve the purpose of realizing arbitrary beam shaping of the microstrip traveling wave series feeding antenna.

The invention provides a frequency-selecting and phase-shifting device and an antenna. The frequency-selecting and phase-shifting device comprises a frequency-selecting mechanism, a phase-shifting mechanism and a plurality of phase-shifting assemblies, the phase shifting mechanism comprises a transmission shaft and a phase shifting gear, the transmission shaft is sleeved with the phase shifting gear in a sliding mode, and the multiple phase shifting assemblies are arranged side by side in the axial direction of the transmission shaft. The frequency selection mechanism comprises a frequency selection moving part and a driving part, the frequency selection moving part comprises a frequency selection rack and a frequency selection arm, one end of the frequency selection arm is connected with the frequency selection rack, the other end of the frequency selection arm is slidably arranged on the transmission shaft in a sleeving mode, the phase shifting gear is arranged in the frequency selection arm in a pivoted mode, and a driving part is formed on the periphery of the driving part and is of a gear structure or a worm structure. And the driving part is meshed with the frequency-selecting rack. The frequency-selecting and phase-shifting device is used for carrying out phase shifting on a phase-shifting driving part, and the frequency-selecting and phase-shifting device is simple in structure and can be flattened, so that the frequency-selecting and phase-shifting device can be conveniently arranged in an antenna, and the antenna is miniaturized.

The utility model belongs to the technical field of positioning antennas, and particularly provides a light-weight full-band positioning antenna, which comprises a single-layer dielectric substrate, a circular high-frequency radiation patch attached to the center of the upper surface of the single-layer dielectric substrate, a cavity arranged on the lower surface of the single-layer dielectric substrate, a circular low-frequency radiation patch attached to the bottom of the cavity, and a circular high-frequency radiation patch attached to the bottom of the cavity. The circular high-frequency radiation patch is internally provided with at least one circular high-frequency coupling patch, the circular low-frequency radiation patch is internally provided with at least one rectangular low-frequency coupling patch, every two circular high-frequency coupling patches are arranged at intervals through non-metal gaps, and the circular high-frequency coupling patches and the rectangular low-frequency coupling patches are connected through feed copper columns. According to the utility model, a high-frequency part is coupled through feeding on the upper surface, and a low-frequency part is coupled through feeding on the lower surface, so that the antenna is miniaturized, the structure is simplified, high bandwidth and high reliability are further realized, the bandwidth of the antenna is increased, the antenna can cover a larger frequency range, and the receiving and transmitting performance of the antenna is improved.

To miniaturize a plurality of antennas to which power is supplied independently of each other.SOLUTION: The antenna includes a first conductor including a first end portion, an intermediate portion, and a second end portion, a second conductor including one end portion connected to the intermediate portion and the other end portion connected to a ground, a first feeding portion configured to input and output a first signal having a wavelength λ 1 to and from the first conductor at a first feeding position, and a second feeding portion configured to input and output a second signal having a wavelength λ 2 to and from the first conductor at a second feeding position. A first section from the second end portion to the other end portion via the intermediate portion has an electrical length of λ 1 * (1 / 8) or more and λ 1 * (3 / 8) or less, a second section from the second feed position to the other end portion via the intermediate portion has an electrical length of λ 2 * (1 / 8) or more and λ 2 * (5 / 8) or less, and the second conductor has a width of λ 1 * (1 / 16) or less.SELECTED DRAWING: Figure 2

The invention discloses a high-gain dielectric resonator antenna unit and related electronic equipment, and the high-gain dielectric resonator antenna unit comprises a dielectric substrate, a dielectric resonator, a feed structure and a director. Wherein the feed structure is coupled with the dielectric resonator to feed the dielectric resonator; the dielectric resonator is columnar, the director is attached to the upper surface of the dielectric resonator, and the lower surface of the dielectric resonator is fixedly connected with the dielectric substrate; the director is an annular metal sheet, and the outer diameter of the director is consistent with the outer diameter of the dielectric resonator. Through the dual effects of the boundary constraint effect and the phase guiding effect, the gain of the dielectric resonator antenna unit is improved, the performance of a directional diagram is improved, the original effective bandwidth is kept, meanwhile, the sectional area and the overall size of the antenna cannot be remarkably increased, the requirement for miniaturization of the antenna can be met, and the antenna is suitable for large-scale popularization and application. And the method can well adapt to various application scenes with limited space.

The application discloses a single-plane electrically small quasi-isotropic antenna, which comprises a dielectric substrate, an antenna patch radiation unit attached to the upper surface of the dielectric substrate, the antenna patch radiation unit comprising a symmetrical folded dipole and a pair of parallel transmission lines, the folded dipole being formed by twice bending two arms of a dipole microstrip line, wherein the two arms of the dipole are bent once so that the bent part is perpendicular to the unbent stub, and the ends of the two arms of the dipole are bent again so that the bent part is parallel to the unbent stub, and the parallel transmission lines are placed in the middle of the folded dipole. The application can realize good quasi-isotropic radiation characteristics while realizing antenna miniaturization, and can effectively emit or receive signals from all directions.

The embodiment of the invention provides a dual-frequency antenna which is applied to the technical field of communication equipment. The antenna comprises a reflecting plate, a low-frequency oscillator unit and a high-frequency oscillator unit, the low-frequency oscillator unit comprises at least two first dipoles; the first dipole comprises two radiation arms and a feed unit connected with the two radiation arms; each radiation arm comprises a first radiation part, the first radiation part of at least one radiation arm is provided with a slot, and an insulating bracket is arranged in the slot; the high-frequency oscillator unit comprises a plurality of second dipoles, at least part of the second dipoles are arranged on the insulating brackets, and one insulating bracket is correspondingly provided with one second dipole; the second dipoles extend in the direction away from the reflecting plate, and the top faces, away from the reflecting plate, of the multiple second dipoles are located on the same plane. According to the dual-frequency antenna, the dipole of the low-frequency oscillator unit and the dipole of the high-frequency oscillator unit are nested and combined, so that the occupied space of the dual-frequency antenna can be reduced, and the miniaturization of the antenna is realized.

The present application relates to the field of communication technology, and provides a miniaturized indoor antenna. The miniaturized indoor antenna includes a ground plate, a high dielectric constant medium, a radiation patch and a coupling patch which are stacked in sequence. The coupling patch includes a first coupling patch and a second coupling patch, the center of the first coupling patch corresponds to the center of the radiation patch, and the second coupling patch is spaced apart from the first coupling patch. It also includes a first probe and a second probe, one end of the first probe is connected to the first feeding port, and the other end passes through the ground plate, the high dielectric constant medium and the radiation patch in sequence to be electrically contacted with the first coupling patch, and one end of the second probe is connected to the second feeding port, and the other end passes through the ground plate, the high dielectric constant medium and the radiation patch in sequence to be electrically contacted with the second coupling patch. The miniaturized indoor antenna of the present application can realize directional and omnidirectional radiation switching within a wide bandwidth, has the advantages of miniaturization, wide bandwidth, easy processing and integration, and can be used in a variety of communication application scenarios.

The embodiment of the present disclosure provides a co-fired ceramic phased array antenna, comprising: a low-temperature co-fired ceramic substrate, a radiating antenna array, a radio frequency feeding network, a high-temperature co-fired ceramic substrate, a control and power supply network, a radio frequency interface, and a device-level TR component; wherein the radio frequency interface is welded on the lower surface of the high-temperature co-fired ceramic substrate; the control and power supply network is located in the high-temperature co-fired ceramic substrate; the device-level TR component is welded on the lower surface of the high-temperature co-fired ceramic substrate; the upper surface of the high-temperature co-fired ceramic substrate and the lower surface of the low-temperature co-fired ceramic substrate form a hybrid stacked ceramic substrate through welding; the radio frequency feeding network is located in the low-temperature co-fired ceramic substrate; and the radiating antenna array is located on the upper surface of the low-temperature co-fired ceramic substrate. In this way, the overall structure internal stress can be reduced, the phased array antenna heat dissipation capacity can be improved, the phased array antenna radiation performance can be enhanced, the phased array antenna miniaturization, integration and light weight can be realized, and meanwhile, the phased array antenna has good reliability.

The application discloses a miniaturized metasurface antenna, which comprises three layers, namely a radiation layer, an air layer and a feed layer from top to bottom, wherein the radiation layer is provided with a metasurface radiation structure, and the feed layer is a microstrip line slot coupling feed structure; the metasurface radiation structure is composed of 16 square patches arranged in a 4*4 array, wherein a rectangular slot is loaded at the center of each square patch, and a branch is loaded at four corners; the metasurface radiation structure adjusts the equivalent capacitance of the metasurface antenna by changing the length and width of the loaded branch extending into the square patch; and the length of the current of the metasurface antenna is adjusted by changing the length and width of the rectangular slot. Compared with the existing conventional metasurface antenna, the metasurface antenna has the advantages of ensuring a wide impedance bandwidth and high gain of the metasurface antenna in the process of miniaturization.

Embodiments of this application provide an antenna, an antenna array, and an electronic device. The antenna includes a radiating patch layer, a ring-shaped metal layer, a first metal layer, and a feed element. The radiating patch layer includes four radiating patches that are distributed in a 2×2 array. When the feed element performs feeding, there is a first phase difference between electrical signals on two adjacent radiating patches in a clockwise arrangement direction of the four radiating patches, to implement circular polarization with a broadside radiation characteristic. The ring-sha ped metal layer is disposed in correspondence with a peripheral edge part of the radiating patch layer, and is coupled and connected to the radiating patch layer. A plurality of metal columns are disposed on the first metal layer. The plurality of metal columns are electrically connected to the ring-shaped metal layer, to form a fence-shaped coupling capacitive column, so that the antenna can have a low profile. This helps implement antenna miniaturization. The antenna provided in embodiments of this application can have characteristics of the low profile and the circular polarization. This helps application of the antenna in the electronic device.

This utility model discloses a miniaturized wideband beam millimeter-wave antenna, including an radome, an antenna cavity, and a mounting component. The radome is fixedly mounted on the antenna cavity via the mounting component. The antenna cavity includes a circular waveguide with cylindrical grooves around its periphery, giving the antenna a wide beam characteristic within the operating frequency band and improving the antenna pattern in the low-frequency band. The radome includes a matching medium located inside the circular waveguide to extend the low-frequency operating bandwidth, thereby ensuring a gain greater than -0.5 dBi within a ±60° range in the 26 GHz to 40 GHz operating frequency band. Filling the circular waveguide opening with the matching medium reduces the diameter of the circular waveguide, achieving antenna miniaturization. Furthermore, the built-in radome reduces manufacturing costs, and mounting it externally to the equipment chassis avoids the influence of the internal structure of the chassis on performance, thus improving the antenna pattern.