WO2011124094A1 - Antenne à microrubans et à double polarisation - Google Patents

Antenne à microrubans et à double polarisation Download PDF

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Publication number
WO2011124094A1
WO2011124094A1 PCT/CN2011/000682 CN2011000682W WO2011124094A1 WO 2011124094 A1 WO2011124094 A1 WO 2011124094A1 CN 2011000682 W CN2011000682 W CN 2011000682W WO 2011124094 A1 WO2011124094 A1 WO 2011124094A1
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WO
WIPO (PCT)
Prior art keywords
metal
dual
antenna
polarized
dielectric layer
Prior art date
Application number
PCT/CN2011/000682
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English (en)
Chinese (zh)
Inventor
庄昆杰
Original Assignee
Zhuang Kunjie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2010201522580U external-priority patent/CN201689984U/zh
Priority claimed from CN2010201522504U external-priority patent/CN201690448U/zh
Priority claimed from CN2010205201019U external-priority patent/CN202121055U/zh
Priority claimed from CN2010205200590U external-priority patent/CN201812925U/zh
Priority claimed from CN2010205200711U external-priority patent/CN201812926U/zh
Priority claimed from CN2010205201131U external-priority patent/CN202121056U/zh
Priority claimed from CN2010205200868U external-priority patent/CN201812928U/zh
Priority claimed from CN2010205200779U external-priority patent/CN201812927U/zh
Priority claimed from CN2010205200904U external-priority patent/CN202121054U/zh
Priority claimed from CN2010105294164A external-priority patent/CN102332635B/zh
Application filed by Zhuang Kunjie filed Critical Zhuang Kunjie
Priority to CN2011800280064A priority Critical patent/CN103222114A/zh
Priority to KR1020127029114A priority patent/KR101318830B1/ko
Priority to EP11765012.7A priority patent/EP2565985A4/fr
Priority to JP2013502986A priority patent/JP5727587B2/ja
Priority to US13/639,958 priority patent/US9030364B2/en
Publication of WO2011124094A1 publication Critical patent/WO2011124094A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line

Definitions

  • the invention relates to an antenna device, in particular to a microwave low-band multi-band high-gain dual-polarization small microstrip antenna.
  • the embodiment discloses a microwave antenna with multiple excitation and multi-layer tuning mechanisms, belonging to signal transmission and movement.
  • the patent document CN200710145376. 1 relates to a multi-antenna mode selection method in a relay network cell handover procedure.
  • Patent Document No. 3 relates to a relay transmission method based on antenna beam overlap.
  • Patent Document No. 1 relates to a base station antenna and a base station antenna unit.
  • the patent document R27919/08 relates to an apparatus and method for processing signals in a distributed antenna system.
  • the patent document JP144655/06 relates to an antenna device.
  • the patent document PCT/JP2007/000969 relates to a mobile communication system using an adaptive multi-antenna.
  • the patent document JP144655/06 relates to an antenna device.
  • the patent document US 60/545,896 relates to an antenna module.
  • Patent Document No. 32/028275 relates to a base station antenna array.
  • Patent Document PCT/JP01/02001 patent document relates to an array antenna base station apparatus.
  • Patent Document PCT/US99/19117 relates to a combination channel.
  • the technique of coding and space-time coding enhances the performance of the antenna.
  • the patent documents of US20110001682, US7508346, and US7327317 relate to a dual-polarized microstrip antenna. These related antenna related technologies cannot satisfy the miniaturization, light weight, high gain, and adjustable antenna. Design requirements such as standing wave ratio do not meet the performance requirements and technical standards set by China Mobile Communications Corporation for antennas of the new generation of TDSCDMA and LTE systems.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the conventional microwave low-band (300MHz-6GHz) microstrip antenna, and to provide a microwave with high working frequency bandwidth, high gain, good cross polarization isolation, small volume, and light weight.
  • a dual-polarized microstrip antenna comprising at least one metal radiating sheet, that is, a first metal radiating sheet;
  • Including at least one dielectric layer that is, a first dielectric layer, preferably the dielectric layer is a resonant dielectric layer, and preferably the dielectric layer is an air i-vibrating dielectric layer or other optimized resonant material layer; a metal radiating sheet between the metal layer and the common metal layer;
  • the excitation micro-grooves are two perpendicular H and the same size H, that is, the two Hs are not in contact, and preferably the H is equal in size, and the size is related to the 'central frequency band wavelength ⁇ of the antenna that needs resonant radiation, and is used for guaranteeing
  • the dual-polarized antenna optimizes and aligns the radiation performance in the two polarization directions.
  • it is preferred that the two ⁇ cross arms "-" are perpendicular to each other to ensure good polarization isolation of the dual-polarized antenna.
  • the preferred design ensures that the planned isolation is above 25-30 dBi.
  • the dual-polarized microstrip antenna described in the present invention is substantially a microwave antenna including multiple excitation and multi-layer tuning mechanisms.
  • the second dielectric layer has a thickness of 1 - 20 mm, and the experiment proves that the voltage standing wave ratio of the antenna source input terminal is optimal when the thickness is preferably 4 - 10 mm in the frequency range of 2 GHz - 3 GHz, and may be less than 1.2;
  • the effects of dielectric constant and dielectric layer thickness on the microstrip excitation line and the microslot excitation line width/length are considered.
  • the thickness of the substrate is 0. 2-5 legs, preferably 0. 5-2mm.
  • the front ends of the two agglomeration microstrip lines are in the shape of a straight line.
  • each of the front ends is perpendicular to the cross arm "-" of an H-shaped excitation groove, and passes through the cross arm "-" of the respective H-shaped excitation groove.
  • a midpoint the front ends of the two excitation lines are discrete and perpendicular to each other, and the vertical optimization is designed to ensure polarization isolation of the dual-polarized antenna, and is used to make one dual-polarized antenna be used as two independent antennas;
  • the distance between the two discrete front ends of the contact is 3, 8 mm; the perpendicularity between the two discrete front ends that are not in contact is 90 degrees.
  • the simulation and real- ⁇ results prove that the above design and optimization design data can obtain better radiation efficiency (gain) and dual polarization polarization isolation, the gain can reach 8-8. 5dBi, polarization isolation reaches 25-3QdB i or above,
  • the two Hs have the same size, width, groove depth, groove width, and shape; preferably, the ends of the single cross arm "-" of each H intersect with the midpoints of the two vertical arms "I";
  • the shape of the single cross arm "-" and the two vertical arms “I” of each H is straight; preferably, the single cross arm "-" of each H is perpendicular to its two vertical arms "I”;
  • the virtual extension of the cross arm "-" of at least one H just passes through the midpoint of the cross arm "-” of the other H; preferably at least one straight line passing through the center point of the first metal radiating piece is located in at least one H 3 ⁇ 4 ⁇ "-" one of the verticals: and the straight-speed vertical plane just passes through the midpoint of the other transverse arm "-", which is perpendicular to the plane in which the groove bottom of the previous H lies;
  • the groove bottoms of the two Hs are on the same plane, preferably the groove faces of the two Hs are on the same plane; the
  • the parameters such as height, thickness and length of the antenna radiation piece, the shield layer and the common metal layer are selected through simulation and experiment. .
  • the size of the radiation piece is freely optimized according to the needs of the band broadening; preferably, the relationship between the size of the second metal radiation piece and the size of the first metal radiation piece follows the relative relationship between the frequency band used by the antenna and the broadening frequency band, and the smaller the frequency of the metal piece is, the smaller the area of the metal piece is.
  • the size of the two pieces is approximately equal to the wavelength ratio of the center frequency of two adjacent frequency bands to be widened; preferably, the second metal radiation piece is disposed above the second shield layer, thereby making the first
  • the dielectric layer is divided into two regions, the lower portion is preferably the cavity, and the upper portion is preferably the first dielectric layer region between the first and second metal radiating sheets.
  • An air dielectric layer ie an A air dielectric layer, which provides an undisturbed working space height for the excitation microstrip line interfaced with the source.
  • the height needs to be greater than the thickness of the first dielectric substrate. - 10 times, the lower the dielectric constant of the dielectric substrate, the larger the multiple should be; preferably a metal reflective common ground plate is provided for providing good back radiation isolation for the radiating element; and for the source portion/feed
  • the meta-section/radiation unit section provides a convenient system common ground.
  • the dual 3 ⁇ 4 strips of the present invention can be used as an antenna unit, which are connected by a two-way power splitter.
  • the connector includes two dual-polarized antenna units, each of which is top-down, that is, The first air dielectric layer, the first metal radiation piece, the second air dielectric layer, the dual polarization micro-channel common ground metal layer, the first dielectric substrate, and the dual-polarized microstrip are sequentially arranged in the reverse direction of the microwave radiation direction.
  • the first metal radiating piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the upper end surface of the first dielectric substrate, and is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate,
  • the lower end surface of the first shield substrate is provided with a double-polarized microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contact dual polarization
  • the excitation radiation microgrooves, the two dual-polarized stimulated radiation microgrooves and the front ends of the dual-polarized microstrip excitation lines are orthogonally corresponding respectively, and the experiment proves that the orthogonal and vertical correspondences can obtain good dual polarization characteristics. , that is, the polarization isolation is high.
  • the dual-polarized microstrip antenna of the present invention can be connected as an antenna unit through a four-way power dividing network, and the connecting body can include four dual-polarized antennas connected by a four-way power dividing network placed in the antenna cover.
  • the unit, the four dual-polarized antenna units are linearly distributed in the radome, and each of the dual-polarized antenna units has a first air permeable layer, a first metal radiant sheet, and a second air from top to bottom.
  • the first metal radiating piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the upper end surface of the first dielectric substrate, and is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate,
  • the lower end surface of the first dielectric substrate is provided with a front end which is orthogonal to each other and is not in contact with the double-polarized 3 ⁇ 4t.
  • the upper end surface of the grounded metal piece is provided with two mutually orthogonal and non-contacting dual-polarized stimulated radiation micro-grooves.
  • the two dual-polarized stimulated radiation microchannels and the front ends of the dual-polarized microstrip excitation lines are orthogonally respectively corresponding.
  • the dual-polarized microstrip antenna of the present invention can be used as an antenna unit and connected together through a four-way power dividing network.
  • the connecting body includes four dual-polarized antenna units connected by a four-way power dividing network placed in the antenna cover.
  • the dual-polarized antenna unit is distributed in two rows and two columns in the radome.
  • Each of the dual-polarized antenna units has a first air dielectric layer, a first metal radiating sheet, and a second air medium in order from top to bottom.
  • the first metal bismuth piece is connected to the radome through an insulating screw, the grounding metal piece is laid on the upper end surface of the first dielectric substrate, and the m ⁇ X AKJ- hollow gold bearing is fixedly connected.
  • the lower end surface of a dielectric substrate is provided with front ends that are orthogonal to each other and are not connected a dual-polarized microstrip excitation line, the upper end surface of the grounding metal piece is provided with two mutually orthogonal and non-contacting dual-polarized stimulated radiation micro-grooves, and the two dual-polarized stimulated radiation micro-grooves
  • the front ends of the double-polarized microstrip excitation lines are orthogonally respectively.
  • the invention also discloses a dual-polarized microstrip antenna, which comprises two mutually independent dual-polarized antennas placed in the same antenna cover, and the dual-polarized antenna has two two-way power points.
  • the dual-polarized antenna unit is connected together, and each of the dual-polarized antenna units has a first air dielectric layer, a first metal radiation piece, a second air medium layer, and a dual-polarized micro-channel in sequence from top to bottom. a ground metal layer, a germanium dielectric substrate, a dual polarized microstrip excitation line, a third air dielectric layer, and a metal reflective substrate.
  • the first metal radiating piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the upper end surface of the first dielectric shield substrate, and is fixedly connected with the hollow metal support fixed on the metal reflective bottom plate.
  • the lower end surface of the first dielectric substrate is provided with a double-polarized microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contact double polarizations.
  • the stimulated radiation microgrooves, the two dual-polarized stimulated radiation microgrooves and the front ends of the dual-polarized microstrip excitation lines respectively correspond orthogonally.
  • the invention also discloses a dual-polarized microstrip antenna, which comprises eight dual-polarized antenna units connected by an eight-way power distribution network disposed in an antenna cover, each dual-polarized antenna unit
  • the first air medium layer, the first metal radiation piece, the second air medium layer, the dual-polarized micro-channel common ground metal layer, the first dielectric shield book, and the dual-polarized microstrip excitation are sequentially arranged from top to bottom. Line, third air shield layer, metal reflective bottom plate.
  • the first metal radiating piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the upper end surface of the first dielectric shield substrate, and is fixedly connected with the hollow metal support fixed on the metal reflective bottom plate.
  • the lower end surface of the first dielectric substrate is provided with a polarization microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contact dual polarization
  • the excitation radiation microgrooves, the two dual-polarized stimulated radiation microgrooves and the front ends of the dual-polarized microstrip excitation lines are orthogonally respectively corresponding.
  • the present invention also discloses a dual-polarized microstrip antenna, which comprises four mutually independent dual-polarized antennas placed in the same antenna cover, wherein: the dual-polarized antenna has one column per column.
  • Two dual-polarized antenna units connected by a two-way power splitter, each of the dual-polarized antenna elements having a first air dielectric layer, a first metal radiating sheet, and a second air dielectric layer from top to bottom a dual-polarized micro-groove common metal layer, a first dielectric substrate, a dual-polarized microstrip excitation line, a third air dielectric layer, and a metal reflective substrate.
  • the first metal radiating piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the upper end surface of the first dielectric substrate, and is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate,
  • the lower end surface of the first dielectric substrate is provided with a double-polarized microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contact dual polarization
  • the excitation radiation microgrooves, the two dual-polarized stimulated radiation microgrooves and the front ends of the dual-polarized microstrip excitation lines are orthogonally respectively corresponding.
  • the present invention also discloses a dual-polarized microstrip antenna, which comprises four mutually independent dual-polarized antennas placed in the same antenna cover, wherein: the dual-polarized antenna has one column per column.
  • the dual-polarized antenna has one column per column.
  • Four dual-polarized antenna units connected by four-way power splitters, each of which has a first air dielectric layer, a first metal radiating sheet, and a second air dielectric layer in order from top to bottom a dual-polarized micro-groove common metal layer, a first dielectric substrate, a dual-polarized microstrip excitation line, a third air dielectric layer, and a metal reflective substrate.
  • the first metal radiating piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the upper end surface of the first dielectric shield substrate, and is fixedly connected with the hollow metal support fixed on the metal reflective bottom plate.
  • the lower end surface of the first dielectric substrate is provided with a double-polarized microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contact dual polarization
  • the excitation radiation microgrooves, the two dual-polarized stimulated radiation microgrooves and the front ends of the dual-polarized microstrip excitation lines are orthogonally respectively corresponding.
  • the invention also discloses a dual-polarized microstrip antenna, which comprises a first air medium layer, a first metal radiation piece, a second air shield layer and a grounding metal piece from top to bottom in the radome. a first dielectric substrate, a microstrip excitation line, a third air dielectric layer, and a metal reflective substrate.
  • the grounding metal piece is laid on the upper end surface of the first dielectric substrate, and is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate, and the upper end surface of the grounding metal piece is provided with a stimulated radiation micro groove.
  • the first metal radiating piece is circular, and an adjusting screw is fixed at a center thereof, and the fixing of the first metal radiating piece is achieved by screwing the adjusting screw and the central thread of the radome.
  • a wireless communication relay station to which the dual-polarized microstrip antenna of the present invention is applied characterized in that the relay station comprises at least one dual-polarized microstrip antenna, and preferably the input port of the dual-polarized microstrip antenna is connected to a relay station retransmission end .
  • a wireless communication base station to which the dual-polarized microstrip antenna of the present invention is applied characterized in that the base station comprises at least one dual-polarized microstrip antenna.
  • a communication system and terminal for applying the dual-polarized microstrip antenna of the present invention characterized in that at least one of the system and the terminal is configured with the dual-polarized microstrip antenna.
  • the dual-polarized microstrip antenna of the present invention is substantially a microwave antenna comprising a multiple excitation multilayer tuning mechanism.
  • the present invention discloses a dual-polarized microstrip antenna comprising at least one metal radiating sheet, that is, a first metal radiating sheet; and comprising at least one common metal layer engraved with an excitation micro-slot line;
  • Including at least one dielectric layer that is, a first dielectric layer, preferably the dielectric layer is a resonant dielectric layer, and preferably the dielectric layer is an air resonant dielectric layer or other optimized resonant material layer; the dielectric layer is located in the first metal a radiation sheet, between the conductive metal layer;
  • a unit of independently adjustable voltage standing wave ratio connected to the first metal radiating sheet is provided, and the metal radiating sheet is circular.
  • the excitation micro-grooves are two vertically-spaced Hs of the same size, that is, two ⁇ are not in contact, and preferably the ⁇ are equal in size, which is used to ensure uniform performance of the dual-polarized antenna in two polarization directions.
  • the cross arms "-" of the two turns are perpendicular to each other for ensuring good polarization isolation.
  • the thickness of the substrate is 0.20.
  • the thickness of the substrate is 0. 2, the thickness of the substrate is 0. 2 5 ⁇ The -5mm, preferably 0. 5 2mm.
  • the front ends of the two excitation lines are in the shape of a straight line, preferably each of the front ends is perpendicular to the cross arm "-" of an H-shaped excitation groove, and passes through the midpoint of the cross arm "-" of the respective H-shaped excitation groove;
  • the front ends of the two excitation lines are discrete and perpendicular to each other.
  • the vertical optimization is designed to ensure polarization isolation of the dual-polarized antenna, and is used to make one dual-polarized antenna be used as two independent antennas;
  • the distance between discrete front ends is 3 - 8mm; the perpendicularity between two discrete front ends that are not in contact is 90 degrees.
  • the two Hs have the same size, width, groove depth, groove width, and shape; preferably, the ends of the single cross arm "-" of each H intersect with the midpoints of the two vertical arms "I";
  • the shape of the single cross arm "-" and the two vertical arms “I” of each H is straight; preferably, the single cross arm ⁇ of each of the turns and its two vertical arms “I” are mutually disposed;
  • the virtual extension of the cross arm "-" of at least one H just passes through the midpoint of the cross arm "-” of the other H; preferably at least one straight line passing through the center point of the first metal radiating piece is located at least one transverse direction of H
  • the second dielectric layer is a slot for reducing the influence between the arrays when the antenna is used in an array; the height of the slots depends on the correlation/isolation parameters specifically determined in the final antenna application.
  • the cavity is preferably a cavity formed by the metal support of the system, the cavity is formed above the common metal layer, the cavity depth is 0. 5 - 20mm; if the first and second dielectric layers are The air layer, and no other radiation sheets or other members are disposed above the second dielectric layer, the first and second dielectric layers are integrated, and the second dielectric layer is a part of the first dielectric layer.
  • the height and length of the antenna radiating sheet, the dielectric layer, and the common metal layer are selected according to the frequency band and the wavelength.
  • the material shield, thickness and shape of the second metal radiating sheet are opposite to the first metal radiating sheet; preferably, the size of the second metal radiating sheet is freely optimized according to the needs of the band broadening; preferably the second metal radiation
  • the ratio of the size of the sheet to the first metal radiating sheet is approximately the ratio of the wavelength of the corresponding frequency that needs to be tuned or widened; preferably the second metal radiating sheet is disposed above the second dielectric layer, thereby placing the first dielectric layer Divided into two regions, the lower portion is preferably the groove cavity, and the upper portion is preferably a first dielectric layer region between the first and second metal radiating sheets.
  • An air dielectric layer ie, an A-air dielectric layer, is provided to provide an undisturbed working space height to the excitation microstrip line of the source port, and the height is required to be greater than 3 - 10 times the thickness of the first dielectric substrate.
  • the at least one metal radiating sheet that is, the first metal radiating sheet, is preferably provided with a unit that is independently adjusted with a convenient voltage standing wave ratio connected thereto, and preferably the metal radiating sheet is circular, and the metal radiating sheet may have various shapes, wherein Rectangular or square performance is better, the circle is more suitable for production debugging compensation, and the comprehensive effect is better. Under the same conditions, other shapes can produce different antenna performance; the voltage standing wave ratio independent adjustment unit can independently control the metal radiation Film
  • the excitation micro-grooves preferably being two discrete Hs of the same size H, that is, the two Hs are not in contact, and preferably the Hs are of equal size, thereby ensuring double
  • the polarized antennas have the same performance in the two polarization directions, and at the same time, it is preferable that the cross arms "_" of the two Hs are perpendicular to each other to ensure good polarization isolation; preferably, the size, width, groove depth, The groove width and shape are identical; preferably, the ends of the single cross arm "-" of each H intersect with the midpoints of the two arm "I”; preferably the single cross arm "-” of each H
  • the shape of the two vertical arms "I” is a straight line; preferably, the single cross arm "-” of each H is perpendicular to its two vertical arms "I”; preferably the virtual extension of the cross arm "-” of at least one H The line just passes through the midpoint
  • At least one dielectric layer that is, a first dielectric layer, preferably the dielectric layer is an air resonant dielectric layer or other optimized resonant material layer; the first metal-shot, and the ground- The metal-layer-between the degree of the 3 ⁇ 4H layer! 3 ⁇ 4 1 - '23 ⁇ 4 ⁇ , excellent i£3 ⁇ 4 4 - Instruction manual
  • the first dielectric layer is an important component of antenna source port voltage standing wave ratio tuning
  • At least one set of bipolar microstrip excitation lines preferably the front ends of the two excitation lines are in a straight line shape, preferably each of the front ends is perpendicular to the cross arm "-" of an H-shaped excitation groove, and passes through respective H-shaped excitations The center of the cross arm "-" of the slot; the front ends of the two excitation lines are discrete and perpendicular to each other.
  • the vertical optimization design ensures polarization isolation of the dual-polarized antenna, and excellent polarization isolation allows a dual-polarized antenna It is used as two independent antennas; the distance and the perpendicularity between the two discrete front ends that are not in contact are one of the important parameters affecting the polarization isolation of the dual-polarized antenna, and the preferred separation of the present invention is 3 - 8mm, in the present invention, the verticality is preferably 90 degrees;
  • the second dielectric layer is disposed, and preferably the second dielectric layer is a resonant dielectric layer, and preferably the dielectric layer is an air resonant dielectric layer or other optimized resonant material layer; preferably, the second dielectric layer is a trench cavity.
  • the cavity is provided to provide a cavity formed by the common metal support of the system above the common metal layer, the cavity depth is preferably 1 - 10 mm, and the second dielectric layer is used for frequency band matching and broadening.
  • the tuning member if the first and second dielectric layers are air layers, and no radiation sheet or other member is disposed above the second meso layer, the first and second dielectric layers are integrated And the second dielectric layer is part of the first dielectric layer;
  • the second metal radiation piece is arranged to widen the width of the radiation band of the antenna or to form a bimodal resonance effect of the adjacent frequency band; preferably, the second metal radiation piece is provided with a voltage standing wave ratio connected thereto, and the second independent adjustment sheep element;
  • the size, material, thickness, shape and size relationship of the second metal radiating sheet follow the relative relationship between the frequency band used by the antenna and the broadening frequency band. The higher the frequency of the metal sheet is, the smaller the size is.
  • the two-piece size is approximately equal to the wavelength ratio of the center frequency of two adjacent frequency bands to be broadened; preferably, the voltage standing wave ratio can independently manipulate the second metal radiation piece; the second metal radiation piece is preferably set Above the second dielectric layer, thereby separating the first dielectric layer into two regions, the lower portion is preferably the cavity, and the upper portion is preferably the first dielectric layer region between the first and second metal radiating sheets; The addition of the second metal radiation sheet can effectively extend the antenna bandwidth by more than 20%.
  • an air dielectric layer ie, an air dielectric layer, which provides an undisturbed working space height for the excitation microstrip line interfaced with the source.
  • the height needs to be larger than the first dielectric substrate. 3-10 times the thickness, the lower the dielectric constant of the dielectric substrate, the larger the multiple should be;
  • a metal reflective common ground plate is provided which provides good back radiation isolation for the radiating element; and provides a convenient system common ground for the source portion/feeder portion/radiation unit portion;
  • the radome is disposed to cover all of the components and the dielectric layer, and preferably the first metal radiating fin is connected to the radome through a screw; the first metal radiating fin may be connected to the radome or the second air vent
  • the cavity layer is connected/fixed, preferably the first metal radiating piece is connected to the radome through a screw.
  • the screw is fixedly connected to the center of the first metal radiating piece, and is screwed to the radome through the internally threaded hole in the center of the radome.
  • the screw is used to fix the height of the finally optimized metal radiating sheet and the common metal layer, and the screw can finely adjust the height in the large-scale manufacturing process to compensate various processing and assembly errors to ensure the antenna is optimized for comprehensive comprehensive design performance. ;
  • the radome is a non-metallic radome, or a day-line cover that has no shielding effect or shielding effect negligible in engineering angle;
  • the sky-line cover functions as aesthetics and protection, including resisting the external environment (cold heat and cold, The influence of cloud rain, sand, frost, artificial touch, bird and beast collision, etc. on the internal structure of the antenna;
  • the radome is preferably a PVC shield;
  • the angle between the H-shaped intermediate cross arm "-" of the double-twisted stimulated radiation microgroove and the X-axis or the ⁇ -axis of the grounded metal piece is preferably positive and negative 45 degrees; the angle between plus and minus 45 degrees is formed A dual-polarized antenna that meets the source requirements of plus or minus 45 degrees; however, plus or minus 45 degrees is not the only option; 0 degrees / 90 degrees is another commonly used mode of dual polarization selection;
  • the first and second metal radiating sheets are preferably metal sheets having stable electrical properties/light weight/cheap, and the shape may be rectangular/square/circular/elliptical, preferably circular;
  • the first and second dielectric layers are preferably as wide as the common metal layer, and the material is superior to the air medium, but other low dielectric loss is not excluded. Description
  • the common ground metal layer preferably forms a microstrip excitation line/microslot excitation line layout with excellent performance in the antenna operating frequency band, and does not affect any PCB layout of the antenna performance;
  • the common metal layer preferably uses a metal with good electrical conductivity Material, preferably copper/aluminum material;
  • an air dielectric layer i.e., a B air dielectric layer, preferably a B air dielectric layer, is disposed outside the first metal radiating sheet in the forward direction of the microwave radiation direction, and preferably the B air dielectric layer is located between the outer cover and the first metal radiating sheet.
  • the technical solution of the present invention, and the first specific design and the second specific design scheme applying the technical solution have the following effects: Fully utilizing the effective area of the grounded metal piece, so that a set of dual-polarized micro-grooves can share one metal radiating piece ;
  • the dual-polarized microstrip antenna with multi-layered radiation structure is designed in a relatively small volume, with a clever layout and compact structure. It has been proved that the antenna has a working frequency relative bandwidth of more than 20%, a high gain, and more than 8.5 dBi, and the dual-polarized cross-isolation is good, up to 25-30 dB.
  • the pair of dual-polarized antenna radiating elements of the present invention can Supports a 2 2 MIM0 system, and is suitable for forming an antenna array, and has the advantages of small size and light weight, so the installation space and load bearing requirements of the antenna are low, processing, installation, and maintenance are relatively convenient, and the antenna installation can be effectively saved. Cost and maintenance costs, can be widely used in the field of mobile communications and Internet technology;
  • the length of the product of the invention is greatly reduced, and the use of the single-phase single-polarized smart antenna in the 3G existing network of China Mobile Communications Group is reduced by more than 75%, and the weight is reduced by 703 ⁇ 4 or more; the TD-SCDMA double is improved compared with the second phase.
  • the volume of the polarized smart antenna is reduced by more than 60% year-on-year, and the weight is reduced by more than 50%;
  • the product of the invention is thinned, and the main body portion of the antenna can be controlled within 40;
  • the key to the miniaturization of the antenna of the present invention is that the gain of the unit element is greatly improved, and the gain is higher than that of the equivalent element such as the folded vibrator antenna by about 2. 5 dB; especially for the array antenna, the antenna antenna can be independently tuned to make the array antenna voltage standing wave ratio ⁇ 1 2-1. 2, the volume is 25»/»_503 ⁇ 4 of the vibrator antenna and antenna array of the same year-on-year performance, and the weight is 30% - 50%; the product of the present invention is preferably provided with an excitation layer, a feed layer, and a resonant tank change Layer 5, 1-3 layer of tuned radiation layer, radiation compensation layer, etc.
  • 5-10 layer structure realizes the structure of multiple microwave excitation and multilayer tuning components, transforms the line radiation mechanism of conventionally used vibrator antenna into surface radiation mechanism , the radiation efficiency of the unit antenna element is improved, and the high gain of the unit vibration element is obtained, and the gain of the unit antenna vibration element can reach 8. 5dBi through simulation calculation and experiment.
  • the air/shield/metal radiating sheet of the present invention is densely arranged in a very small space, which is a widened frequency band and an optimized matching design; by such a structural design, the antenna of the present invention can be used in a bimodal or multi-peak frequency band (similar to a hump)
  • the antenna resonance characteristics of the pattern can be used in an extremely small antenna structure for an operator customer having an effect that is separated by a certain frequency interval and difficult to be broadbanded by one antenna in a conventional antenna.
  • the technical solution of the present invention can be optimized as a preferred first specific design in the case where only one metal radiating sheet is provided: a microwave low-band multi-band high-gain dual-polarized small microstrip antenna, which is characterized by an antenna
  • the top inside of the cover that is, the first air medium layer, the first metal radiation piece, the second air shield layer, the dual polarization micro groove excitation common ground metal layer, and the first medium base are sequentially reversed in the direction of the microwave radiation.
  • the first air-conditioning layer is the B air medium layer in the above technical solution of the present invention
  • the first specific design scheme is the first air-conditioning layer, the third air-source layer, and the metal-reflecting substrate
  • the second air-conducting layer is a medium-layer in the above technical solution of the present invention; in the first-specific specific scheme, the "m-temperament-layer--"------------------------------------------------------------------------------------------------------------------------ In a first specific design, the first metal radiating piece is connected to the radome through a screw, and the lower end surface of the grounding metal piece is integrated with the upper end surface of the first dielectric substrate, and is fixed on the metal reflective bottom plate.
  • the hollow metal support is fixedly connected, and the lower end surface of the first dielectric substrate is provided with a bipolar microstrip excitation line whose front ends are orthogonal to each other and does not contact, and the upper end surface of the ground metal piece is opened and orthogonal to each other.
  • the non-contact dual-polarized stimulated radiation microgrooves, the set of dual-polarized stimulated-radiation microgrooves and the front ends of the polarized microstrip excitation lines are orthogonally respectively corresponding.
  • the dielectric substrate holder is fixed on the hollow metal support, and a fourth air dielectric layer is formed under the second metal radiation sheet. This technical solution is also advantageous for further increasing the operating bandwidth of the antenna.
  • the screw is fixedly connected to the center of the first metal radiating piece, and is screwed to the radome through the internally threaded hole in the center of the radome.
  • the technical solution is beneficial for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna. Gain.
  • the second metal radiation piece and the first metal radiation piece further have a third metal radiation piece parallel to the first metal radiation piece, the third metal radiation piece and the second metal radiation piece, the hollow metal
  • the support is insulated, and a fifth air dielectric layer is formed between the third metal radiation piece and the second metal radiation piece.
  • the dual polarized antenna unit has a third dielectric substrate attached to a lower end surface of the third metal radiating sheet, and the third dielectric substrate is fixed above the second dielectric substrate through an insulating support.
  • the first metal radiating piece is circular, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output port, and matching with the impedance of the microstrip excitation line to improve the antenna gain.
  • the second metal radiation piece is circular or square, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output ports, matching the impedance of the microstrip excitation line, and improving the antenna gain.
  • the two stimulated radiation microchannels on the grounding metal piece are equal in size and have a double "H” shape, and the double "H" shaped intermediate cross arms are orthogonal to each other.
  • This technical solution is advantageous for increasing the gain of the dual-polarized radiating element (i.e., the electromagnetic field to electromagnetic wave conversion efficiency or radiation efficiency) for achieving high gain of the antenna unit in a small volume/radiation area.
  • the angle between the "H"-shaped middle cross arm of the double “H”-shaped excited radiation micro-groove and the X-axis or the Y-axis of the grounded metal piece is positive, negative 45 degrees or 0 degree / 90 degrees, This achieves ⁇ 45° or 0° / 90° dual-polarized antenna radiation.
  • the result of the detection of the small dual-polarized ( ⁇ 45° polarization) antenna unit of the present invention that is, the detection data of the embodiment 17 shows that the actual measurement is substantially consistent with the simulation result, that is, the gain is about 8. 5dBi; the detection map shows that the level is The vertical beamwidth is 70-75. , the front-to-back ratio is greater than 25dB.
  • the present invention is different from the conventional half-wave oscillator type antenna, the multi-wave excitation and the multi-layered tuned component of the surface radiant, the gain of the oscillating element is 5. 5dBi, The unit gain of the invention is 8. 5dB i ; Instruction manual
  • the multi-antenna cell array is usually used to obtain the gain improvement; for example, the present invention can realize the gain of 14. 5dBi by using four dual-polarized cell arrays; the antenna of the present invention has an excellent small size.
  • Characteristics The antenna volume is equal to 1/3 - 1 /5 or less of the conventional antenna under the same antenna gain characteristics;
  • the antennas with different gains and different beam width requirements can be flexibly combined: the horizontal and vertical angles of the unit beam are both 75°, and the gain can be multiplied when the number of antenna units is multiplied in different directions, and the beam width is doubled. Less;
  • the antenna unit of the present invention has high isolation characteristics, and the same polarization/isopolarization isolation can be greater than 25 dB, and the radiation pattern of the array is consistent when the multi-antenna array is used, and the application effect in the MiMo antenna is good.
  • the antenna radiating element feed element of the invention adopts a micro-band excitation mode of a planar structure, and the port voltage standing wave ratio is convenient to debug, and is beneficial to the integrated design with the source circuit;
  • a TD-SCDMA base station that achieves the technical effects of the present invention uses a ⁇ -TD2814-AF8 channel dual-polarized smart antenna, each channel having a gain of 14-14. 5dBi, and a typical size of 405 * 420 * 35 mm 3 , the weight is less than 5 kg, the windward area is only 0. 17m 2 , which is much smaller than the commonly used antennas; Conducive to concealment and beautification, to dilute the sensitivity of the owners; Common station construction can share the poles, reduce network construction investment; Product repeatability Good, consistent, easy to operate and maintain.
  • the antenna of the present invention can be applied to any fixed and mobile device using a microwave antenna, including but not limited to various types of mobile terminals: mobile phones, handheld televisions, notebook computers, GPS locators; traffic vehicles or road monitors, communication relay stations, and repeaters , launch pad, etc., especially suitable for antenna systems of base stations/distributed base stations I networked equipment in complex dense urban areas or high-rise buildings.
  • Figure 1 is a cross-sectional view showing an embodiment 1
  • Figure 2 is a top plan view of the embodiment 1 of the present invention with the radome removed.
  • Figure 3 is a cross-sectional view showing a second embodiment of the present invention.
  • Fig. 4 is a graph showing the reflection coefficient and the isolation test of the embodiment 1.
  • Fig. 5 is a graph showing the reflection coefficient and isolation test of the embodiment 2.
  • Figure 6 is a cross-sectional view showing a third embodiment of the present invention.
  • Figure 7 is an explanatory view of Embodiment 7.
  • Figure 8 is an explanatory diagram of Embodiment 8.
  • Figure 9 is an explanatory view of Embodiment 9.
  • Figure 10 is an explanatory view of Embodiment 10.
  • Figure 11 is an explanatory view of Embodiment 11.
  • Figure 12 is an explanatory view of Embodiment 12.
  • Figure 13 is an explanatory view of Embodiment 13.
  • Figure 14 is an explanatory view of Embodiment 14.
  • Figure 15 is an explanatory view of Embodiment 15.
  • Figure 16 shows a set of standing wave diagrams for a dual-polarized channel.
  • Figure ⁇ is the phase diagram of the calibration channel.
  • Figure 18 is a single-port horizontal measurement.
  • Figure 19 shows a single port vertical direction measurement.
  • Figure 20 shows the horizontal direction of the 1-3-5-7 port.
  • Figure 21 shows the horizontal measurement of the 2-4-6-8 port.
  • Embodiment 1 TD-SCDMA dual-polarized antenna
  • the microwave low-band multi-band high-gain dual-polarization small microstrip antenna of the present embodiment (for TD-SCD A dual-polarized antenna, the TD-SCDMA frequency band obtained by China Mobile Communications Group under the 3G license is 1880 ⁇ 1920 MHz, 2010 - 2025 MHz ) , as shown in FIG. 1 and FIG. 2 , the radome 1 has a first air dielectric layer 2 , a first metal radiating sheet 3 , a second air dielectric layer 4 , and a ground metal sheet 5 from top to bottom.
  • the grounding metal piece 5 is laid on the upper end surface of the first dielectric substrate 6, and is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate 9.
  • the surface of the first dielectric substrate is: JJ is provided ⁇ Front-end phase—mutually connected to one another” 3 ⁇ 4 ⁇ - ⁇ - ⁇ T excitation 3 ⁇ 4 ⁇ 7 ⁇ , W Instruction manual
  • the upper end surface of the grounding metal piece 5 is provided with two mutually opposite and non-contacting stimulated radiation micro-grooves 12, 12', the two stimulated radiation micro-grooves 12, 12' and the bipolar microstrip line 7
  • the front ends of 7' are orthogonally corresponding.
  • the first metal radiating sheet 3 is circular
  • the screw 10 is fixedly coupled to the center of the first metal radiating sheet 3, and is screwed to the radome 1 through the internally threaded hole in the center of the radome 1.
  • the technical solution is beneficial for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna.
  • Gain the circular metal radiating piece only has a height change during the adjustment process, so the adjustment is more convenient.
  • the two stimulated radiation microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double "H” shape, and the double "H” shaped intermediate cross arms are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the "H"-shaped intermediate cross arm of the double "H"-shaped stimulated micro-groove 12, 12' and the X-axis or Y-axis of the grounded metal piece is positive and negative 45 degrees.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the measured reflection coefficient curve of the antenna S11 is the reflection coefficient of port 1
  • S22 is the reflection coefficient of port 2. It can be seen that the reflection coefficients of the two ports working in dual-polarization in the TD-SCDMA band are less than -17dB, and the bandwidth indicators are all up to the requirement (relative bandwidth is greater than 8%).
  • the figure also shows the measured isolation curve between the two ports of the dual-polarized antenna. S21 (S12) is the isolation between port 1 and port 2. It can be seen that the isolation is less than -32dB in the bandwidth range.
  • the test results show that the two ports of the dual-polarized antenna are ideally isolated from each other and can work independently of each other.
  • the gain of the antenna gain at the test frequency of 1900MHz is 8. 9dBi, and the width of the ta-surface half-power lobe is 83°.
  • Embodiment 2 TD-SCDMA band and TD-LTE band antenna
  • the microwave low-band multi-band high-gain dual-polarization small microstrip antenna of the present embodiment covers the TD-SCDMA frequency band and the TD-LTE frequency band, the WCDMA frequency band 1920-1980 MHz, 2110-2170 MHz, and the TD-SCDMA frequency band 1880-1920 MHz , 2010 - 2025 MHz.), as shown in FIG. 3, based on the structure of Embodiment 1, further provided with a second metal radiating sheet 13 and a second dielectric substrate 14 in the second air medium layer 4, The lower end surface of the second metal radiating sheet 13 is integrally formed with the upper end surface of the second dielectric substrate 14, and is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate 9, in the second dielectric substrate.
  • a fourth air dielectric layer 15 is formed below the 14 .
  • This technical solution is advantageous for further increasing the operating bandwidth of the antenna.
  • the second metal radiating sheet 13 is circular, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output ports, matching with the impedance of the microstrip excitation line, and improving the antenna gain.
  • the graph shows the measured reflection coefficient of the antenna. It can be seen that the reflection coefficients of the two ports working in dual-polarization in the TD-SCDMA and WCDMA bands are less than -17dB, and the bandwidth indicators meet the requirements. . It can be seen that due to the addition of the second radiating film, the antenna effectively broadens the operating band width characteristic of the antenna based on the original single-chip radiating chip bandwidth effect and various performance indexes, and the relative bandwidth reaches 22. 5»/. . The figure also shows the measured isolation curve between the two ports of the dual-board antenna. It can be seen that the isolation is less than -32dB in the bandwidth range. The test results show that the two ports of the dual-polarized antenna are ideally isolated from each other and can work independently of each other.
  • the second metal radiation plate and the dielectric substrate are disposed in the second air shield layer.
  • the second metal radiating fin is fixed on the dielectric substrate holder, and the dielectric substrate holder is fixed on the hollow metal support, and a fourth air shield layer is formed under the second metal radiating sheet.
  • This technical solution is also advantageous for further increasing the operating bandwidth of the antenna.
  • Embodiment 3 Three-metal radiation sheet dual-polarization small microstrip antenna
  • a third metal radiating sheet 18 and a third dielectric substrate 17 are further disposed between the second metal radiating sheet 13 and the first metal radiating sheet 3, and the third metal radiating sheet 18 is parallel to the first metal radiating sheet 3, 3 ⁇ 4 ⁇ Jj is insulated from a hollow metal support 11, and the lower end surface of the third metal radiation piece 18 is attached to the upper end surface of the third shield substrate 17 Description
  • test results show that in the embodiment 3, the working bandwidth of the antenna is further widened under the premise that the original electrical performance index of the antenna is unchanged, and the relative bandwidth can reach about 40%.
  • a third metal radiation piece parallel to the first metal radiation piece is disposed between the second metal radiation piece and the first metal radiation piece, and the third metal radiation is The sheet is insulated from the second metal radiating sheet and the hollow metal support, and a fifth air dielectric layer is formed between the third metal radiating sheet and the second metal radiating sheet.
  • This technical solution is also advantageous for further increasing the operating bandwidth of the antenna.
  • Embodiment 4 Small multilayer microstrip antenna for facilitating voltage standing wave ratio
  • the embodiment discloses a small multi-layer microstrip antenna for facilitating debugging of a voltage standing wave ratio, wherein the radome has a first air shield layer, a first metal radiating sheet and a second air medium from top to bottom. a layer, a grounding metal piece, a first dielectric substrate, a microstrip excitation line, a third air dielectric layer, a metal reflective bottom plate, the grounding metal piece is laid on the upper end surface of the first dielectric substrate, and is fixed to the metal
  • the hollow metal support on the reflective bottom plate is fixedly connected, the upper end surface of the grounding metal piece is provided with a stimulated radiation micro-groove, the first metal radiating piece is circular, and an adjusting screw is fixed in the center thereof, and the adjusting screw is passed through the adjusting screw
  • the screwing of the internal thread of the radome realizes the fixing of the first metal radiating piece.
  • the solution facilitates fine adjustment of the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, and conveniently adjusts the voltage standing wave ratio of the antenna input and output port, matches the impedance of the microstrip excitation line, and improves the antenna gain. . Since the first metal radiating piece is circular, there is only one variable in the adjustment, so the adjustment is very convenient and fast, and the production efficiency is greatly improved.
  • the lower end surface of the first dielectric substrate is provided with a bipolar microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contacting stimulated radiation micro
  • the slots, the two stimulated radiation microgrooves and the front ends of the bipolar microstrip excitation lines are orthogonally respectively corresponding.
  • the hollow metal support on the metal reflective bottom plate is fixedly connected to form a fourth air dielectric layer under the second dielectric substrate.
  • This technical solution is advantageous for further widening the operating band width characteristics of the antenna.
  • the second metal radiating sheet is fixed on the medium shield substrate holder, and the dielectric substrate holder is fixed on the hollow metal support Forming a fourth air dielectric layer under the second metal radiation sheet.
  • This technical solution is also advantageous for further increasing the operating bandwidth of the antenna.
  • the second metal radiating piece is circular, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna gain. 5.
  • the two stimulated radiation micro-grooves on the grounding metal piece are of equal size and have a double "H” shape, and the middle cross arms of the double "H” shape are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna. 6, the double "H” fan-shaped stimulated emission microgrooves "H” shaped intermediate arm and the ground metal piece in the X-axis or 4 - the angle between positive and negative 45 degrees.
  • the technical solution further utilizes the effective area of the grounded metal piece to achieve miniaturization of the antenna.
  • the utility model designs the dual-polarized microstrip antenna and the multi-layer radiation structure in a relatively small volume, and has a clever layout and a compact structure.
  • the antenna has a working frequency relative bandwidth of up to 20»/.
  • the gain is high 9dBi
  • the dual polarization cross isolation is good (30dB)
  • the dual-polarized antenna unit can support a 2 x 2 MIM0 system. Due to its small size and light weight, the antenna installation space and load-bearing requirements are required. Low, processing, installation and maintenance are convenient. It is suitable to form an antenna array, which can effectively save antenna installation cost and maintenance cost. It is widely used in mobile communication and Internet technology.
  • the small multi-layer microstrip antenna of the present embodiment is convenient for debugging the voltage standing wave ratio, and the specific design is as shown in FIG. 1 and FIG. 2, and the radome 1 is from the top.
  • the first air medium layer 2, the first metal radiation sheet 3, the second air shield layer 4, the ground metal sheet 5, the first dielectric substrate 6, the microstrip excitation lines 7, 7' (this embodiment) a bipolar microstrip antenna, a third air dielectric layer 8, and a metal reflective substrate 9,
  • the first metal radiating sheet 3 is connected to the radome 1 by a screw 10, and the grounding metal sheet 5 is laid over the first dielectric base.
  • the upper end surface of the sheet 6 is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate 9.
  • the upper end surface of the ground metal sheet 5 is provided with stimulated radiation microgrooves 12, 12' (in this case, bipolar a microstrip antenna), the first metal radiating sheet 3 is circular, and an adjusting screw 10 is fixed at a center thereof, and the first metal radiating sheet 3 is realized by screwing the adjusting screw 10 and the internal thread of the radome 1 Fixed.
  • the lower end surface of the first dielectric substrate 6 is provided with a bipolar microstrip excitation line 7 whose front ends are orthogonal to each other and which are not in contact with each other.
  • the upper end surface of the grounded metal sheet 5 is provided with two mutually orthogonal and non-contacting
  • the excitation radiation microchannels 12, 12' respectively correspond to the front ends of the silent microstrip excitation lines 7, T, respectively.
  • the two stimulated radiation microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double ' ⁇ ' shape, and the middle of the double " ⁇ " shape is said.
  • the cross arms are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the " ⁇ " shaped intermediate cross arm of the double " ⁇ " shaped stimulated micro-groove 12, 12' and the X-axis or the ⁇ axis of the grounded metal piece is positive and negative 45 degrees.
  • the technical solution further utilizes the effective area of the grounded metal piece to achieve miniaturization of the antenna.
  • Embodiment 5 Small multilayer microstrip antenna for facilitating voltage standing wave ratio
  • the small multi-layer microstrip antenna of the present embodiment is convenient for debugging the voltage standing wave ratio, as shown in FIG. 3, which is based on the structure of the embodiment 4, and is also provided with the second air medium.
  • a second metal tab 13 and a second dielectric substrate 14 in the layer 4 the lower end surface of the second metal radiating sheet 13 is integrated with the upper end surface of the second dielectric substrate 14, and is fixed to the metal reflection
  • the hollow metal support 11 on the bottom plate 9 is fixedly connected, and a fourth air dielectric layer 15 is formed below the second dielectric substrate 14.
  • the second metal dome 13 is circular, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output ports, and matching the impedance of the microstrip excitation line to improve the antenna gain.
  • a second metal radiating sheet and a dielectric substrate holder are disposed in the second air dielectric layer, and the second metal radiating sheet is fixed on the dielectric substrate holder, and the dielectric substrate holder is disposed. It is fixed on the hollow metal support, and a fourth air shield layer is formed under the second metal radiation piece.
  • This technical solution is also advantageous for further increasing the operating bandwidth of the antenna.
  • Embodiment 6 Antenna built-in wireless communication relay station
  • An antenna built-in wireless communication relay station having a relay main body chassis, an antenna matched with the relay station, and characterized in that it further has a curved upper cover of the relay station, and the antenna is placed on the curved upper cover of the relay station.
  • the screw is connected to the curved upper cover of the relay station by a screw, and the input port of the antenna is directly connected to the repeating end of the relay station, and the curved upper cover of the relay station is fixedly connected to the main body of the relay station by screws.
  • the antenna built-in wireless communication relay station of the embodiment has a relay main body chassis and an antenna matched with the relay station, and the improvement thereof is to further have a curved upper cover of the relay station, the antenna is placed in the curved upper cover of the relay station, and the screw and the relay station are passed through the screw
  • the curved upper cover is fixed-connected, and the input port of the antenna is directly connected to the retransmission end of the relay station, and the curved upper cover of the relay station is fixedly connected to the main body of the relay station by screws.
  • the antenna is a multi-layer microstrip antenna, and specifically, a multi-layered dual-polarized small microstrip antenna.
  • the antenna of this embodiment is of a ceiling type.
  • the beneficial effects of the embodiment are as follows: the antenna is placed in the main body of the wireless communication relay station, the structure is compact, the connection cable is saved, the cost is low, the engineering installation is convenient, and the system is suitable for use in the wireless communication indoor distribution system, not only the appearance is beautiful, but also the antenna transmission performance. Good, high reliability.
  • Example 7 Miniature dual-polarized microstrip antenna
  • each of the dual-polarized antenna units has a first air dielectric layer, a first metal radiation piece, a second air dielectric layer, a ground metal piece, and a top, bottom, and a first dielectric substrate, a bipolar microstrip excitation line, a third air dielectric layer, and a metal reflective substrate, wherein the first metal radiation piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the first dielectric base
  • the upper end surface of the sheet is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate, and the lower end surface of the first dielectric substrate is provided with a bipolar microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other,
  • the upper end surface of the grounding metal piece is provided with two mutually opposite and non-contacting stimulated radiation micro-grooves, and the two stimulated radiation grooves are orthogonally orthogonal to the front ends of the bi
  • the beneficial effects of the embodiment are as follows:
  • the embodiment combines the microstrip, micro-slot and multi-layer theory into one body, has the advantages of small size, compact structure and light weight; and the antenna has good energy radiation performance and high reliability;
  • the antenna adopts a linear arrangement, and has a planar emission source, so that the microwave beam has better directional selectivity;
  • the dual-polarized antenna is composed of two antenna elements, and the gain can reach l ldBi, which satisfies the need;
  • the microstrip line saves the use of the connecting cable and reduces the cost; the compact size and light weight make the installation more convenient.
  • the miniature dual-polarized microstrip antenna has been tested to fully meet the operator's requirements for electrical and mechanical performance.
  • the miniature dual-polarized microstrip antenna of this embodiment includes two pairs connected by a two-way power splitter (such as Wilkinson power splitter) placed in the antenna cover 1 Polarized antenna elements B1 and B2, each of the dual-polarized antenna elements (taking the dual-polarized antenna unit B1 as an example), as shown in FIG. 2, has a first air dielectric layer 2 and a first metal from top to bottom.
  • a two-way power splitter such as Wilkinson power splitter
  • the metal radiating sheet 3 is connected to the radome 1 through the insulating screw 10, and the grounding metal sheet 5 is laid on the upper end surface of the first dielectric substrate 6, and is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate 9.
  • the lower end surface of the first dielectric substrate 6 is provided with bipolar microstrip excitation lines 7, 7' whose front ends are orthogonal to each other and not in contact with each other.
  • the upper end surface of the ground metal sheet is provided with two mutually orthogonal and non-contacting stimulated radiation.
  • the first metal radiating piece 3 is circular
  • the insulating screw 10 is fixedly coupled to the center of the first metal radiating piece 3, and is screwed to the radome 1 through the internally threaded hole in the center of the radome 1.
  • the technical solution is beneficial for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna.
  • the circular metal radiating piece only has a height change during the adjustment process, so the adjustment is more convenient.
  • the two excited microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double "H" shape, and the double "H” shaped intermediate cross arms are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the "H"-shaped intermediate cross arm of the double "H"-shaped stimulated radiation microgrooves 12, 12' and the X-axis or Y-axis of the grounded metal piece is positive and negative 45 degrees.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the test results show that the gain of the dual-polarized antenna gain is lldBi at the test frequency of 1900MHz; the half-power lobe width of the horizontal plane is 72 °, the half-power lobe width of the vertical plane is 36°, and the front-to-back ratio is smaller than -25dB; The port voltage standing wave ratio is less than 1.3, and the relative bandwidth of the working frequency band is about 1 W.
  • Example 8 Miniature dual-polarized microstrip antenna
  • a second metal radiating sheet 13 and a second dielectric substrate 14 are disposed in the second air dielectric layer 4, and the second metal radiating sheet 13 is parallel to a first metal radiating plate 3, the lower end surface attached to a second end surface of the metallic radiating plate 13 and the second I 4 of the dielectric substrate integrally, and connected to a fixed support 11 fixed on the metal reflection hollow metal base plate 9 in A fourth air dielectric layer 15 is formed below the second dielectric substrate 14.
  • the second metal radiating sheet 13 is circular, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output ports, matching with the impedance of the microstrip excitation line, and improving the antenna gain.
  • test results show that the embodiment 8 is in the real 7 _ ⁇ original one electric energy refers to the non-variable - the ⁇ " ⁇ " ⁇ ⁇ belt - wide - spread" 3 ⁇ 47 ⁇ * 1 pair - wide Up to 253 ⁇ 4 or so.
  • a dual metal radiating piece parallel to the first metal radiating piece located in the second air dielectric layer is disposed in the dual polarized antenna unit, and the second metal radiating piece is disposed. Insulating and fixing with the hollow metal support, a fourth air dielectric layer is formed between the second metal radiation piece and the ground metal piece.
  • a third metal radiating sheet 18 and a third dielectric substrate ⁇ are further disposed between the second metal radiating sheet 13 and the first metal radiating sheet 3,
  • the trimetal radiating sheet 18 is parallel to the first metal tab 3 , and the third metal sheet 18 is said
  • the lower end surface of the third metal radiating sheet 18 is integrated with the upper end surface of the third dielectric substrate, and is insulated from the second dielectric substrate 14.
  • the holder 19 is fixedly connected to form a fifth air dielectric layer 16 below the third dielectric substrate 17.
  • the test results show that in the embodiment 9, the working bandwidth of the antenna is further widened under the premise that the original electrical performance index of the antenna is unchanged, and the relative bandwidth can reach about 40%.
  • a technical solution equivalent to the solution of the present embodiment that is, a third metal radiation piece parallel to the first metal film is disposed between the second metal radiation piece and the first metal radiation piece, and the third The metal radiating sheet is insulated from the second metal radiating sheet and the hollow metal support, and a fifth air dielectric layer is formed between the third metal radiating sheet and the second metal emitting sheet.
  • This technical solution is also advantageous for further increasing the operating frequency bandwidth of the antenna, but since there is no third dielectric substrate, the operating bandwidth is slightly smaller.
  • Embodiment 10 Small dual-polarized microstrip antenna
  • a small dual-polarized microstrip antenna which comprises four dual-polarized antenna units connected by four-way signal splitters placed in an antenna cover, the four The dual-polarized antenna units are linearly distributed in the radome, and each of the dual-polarized antenna units has a first air dielectric layer, a first metal radiating sheet, a second air dielectric layer, and a grounded metal sheet from top to bottom. a first dielectric substrate, a bipolar microstrip excitation line, a third air dielectric layer, and a metal reflective substrate.
  • the first metal radiation piece is connected to the radome through an insulating screw, and the grounding metal piece is laid on the first dielectric layer.
  • the upper end surface of the shield substrate is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate, and the lower end surface of the first dielectric substrate is provided with a bipolar microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other.
  • the upper end surface of the grounding metal piece is provided with two mutually opposite and non-contacting stimulated radiation micro-grooves, and the two stimulated radiation micro-grooves respectively correspond to the front ends of the bipolar microstrip excitation lines.
  • the beneficial effects of the embodiment are as follows:
  • the utility model combines the microstrip, microgroove and multi-layer theory into one, has the advantages of small size, compact structure and light weight; and the antenna has good energy radiation performance and high reliability;
  • the antenna adopts a linear arrangement, and has a planar-one-emission source, so that the microwave beam has better directional selectivity;
  • the dual-polarized antenna is composed of two antenna elements, and the gain can be up to 14dBi, which satisfies the need;
  • Micro-belt routing is used, which saves the use of connecting cables and reduces the cost. Because of its compact size and light weight, the installation is more convenient.
  • the small dual-polarized microstrip antenna has been tested to fully meet the operator's requirements for electrical and mechanical performance.
  • the small dual-polarized microstrip antenna of this embodiment includes four four-way power splitters placed in the antenna cover 1 (in this example, the four-way power splitter consists of three WLs). Lkinson and other power dividers are connected in series) dual-polarized antenna units B1, B2, B3, and B4 connected together, and the four dual-polarized antenna units are linearly distributed in the radome, and each dual-polarized antenna unit (in the case of the dual-polarized antenna unit B1 as an example), as shown in FIG. 2, the first air dielectric layer 2, the first metal radiating sheet 3, the second air dielectric layer 4, and the grounded metal sheet are sequentially arranged from top to bottom.
  • the hollow metal support 11 on the board 9 is fixedly connected, and the lower end surface of the first shield substrate 6 is provided with bipolar microstrip excitation lines 7, 7' whose front ends are orthogonal to each other and not in contact, and the upper end surface of the ground metal sheet is opened.
  • the first metal radiating sheet 3 is circular, and the insulating screw 10 is fixedly coupled to the center of the first metal radiating sheet 3. and is screwed to the radome 1 through the internally threaded hole in the center of the radome 1.
  • the technical solution is beneficial for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna.
  • Gain The circular metal radiating piece has only a high degree of variation during the adjustment process, so the adjustment is more convenient.
  • the two stimulated radiation microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double "H” shape, and the double "H” shaped intermediate cross arms are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the "H"-shaped intermediate cross arm of the double "H"-shaped stimulated radiation microgrooves 12, 12' and the X-axis or Y-axis of the grounded metal piece is positive and negative 45 degrees.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the test results show that the gain of the dual-polarized antenna is 1400° at the test frequency (14dBi; the half-power lobe width is 70 ⁇ °, the vertical half-power lobe width is 18°, and the front-to-back ratio is less than -25dB; The output port voltage standing wave ratio is less than 1.3, and the relative bandwidth of the working frequency band is about 101 ⁇ 2.
  • Embodiment 11 Small dual-polarized microstrip antenna
  • FIG. 13 which is formed by the structure of Embodiment 10, a second metal radiating sheet 13 and a second dielectric substrate 14 are disposed in the second air medium layer 4, and the second metal radiating sheet 13 is parallel to The first metal radiating sheet 3, the lower end surface of the second metal radiating sheet 13 is integrally formed with the upper end surface of the second dielectric substrate 14, and is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate 9, A fourth air dielectric layer 15 is formed under the second dielectric substrate 14.
  • the second metal radiating sheet 13 is circular, which is convenient for adjusting the voltage standing wave ratio of the antenna input and output ports, matching with the impedance of the microstrip excitation line, and improving the antenna gain.
  • test results show that in the embodiment 11, the working bandwidth of the antenna is widened under the premise that the original electrical performance index of the antenna is unchanged, and the relative bandwidth can reach about 25%.
  • a dual metal radiating piece parallel to the first metal radiating piece located in the second air dielectric layer is disposed in the dual polarized antenna unit, and the second metal radiating piece is disposed. Insulating and fixing with the hollow metal support, a fourth air dielectric layer is formed between the second metal radiation piece and the ground metal piece.
  • Embodiment 12 Small dual-polarized microstrip antenna
  • the structure of the embodiment 11 is taken out, and a third metal radiating sheet 18 and a third dielectric substrate 17 are further disposed between the second metal radiating sheet 13 and the first metal radiating sheet 3.
  • the third metal radiating sheet 18 is parallel to the first metal radiating sheet '3, and the third metal radiating sheet 18 is insulated from the second metal radiating sheet 13 and the hollow metal holder 11, and the lower end surface of the third metal radiating sheet 18 is on the third dielectric substrate 17 is integrally attached to the end face, and the insulating support 19 is fixedly connected to the second fixed to the dielectric substrate I 4 is formed in the fifth dielectric layer 16 of air under the third dielectric substrate 17 wide.
  • test results show that in the embodiment 12, the working bandwidth of the antenna is further widened under the premise that the original electrical performance index of the antenna is unchanged, and the relative bandwidth can reach about 40%.
  • a second metal-radiation sheet and a first metal-radiation sheet are disposed parallel to the first gold-radius-the first gold-genus radiation-sheet- - - ⁇
  • a fifth air dielectric layer is formed between the radiation sheet and the second metal radiation sheet.
  • the technical solution is also advantageous for further increasing the working frequency bandwidth of the antenna. However, since there is no third dielectric substrate, the working bandwidth is slightly smaller.
  • Embodiment 13 Small high-gain dual-polarized microstrip antenna
  • a small high-gain dual-polarized microstrip antenna which comprises four dual-polarized antenna units connected by four-way signal splitters placed in an antenna cover,
  • the dual-polarized antenna unit is distributed in two rows and two columns in the radome.
  • Each of the dual-polarized antenna units has a first air dielectric layer, a first metal radiating sheet, a second air dielectric layer, and a second air dielectric layer in order from top to bottom.
  • first metal radiation piece is connected to the radome through an insulating screw, and the grounding metal piece is covered
  • the upper end surface of the first shield substrate is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate, and the lower end surface of the first dielectric substrate is provided with bipolar micro electrodes whose front ends are orthogonal to each other and are not in contact with each other.
  • the upper end surface of the grounding metal piece is provided with two mutually opposite and non-contacting stimulated radiation micro-grooves, and the front ends of the two stimulated radiation micro-grooves and the bipolar microstrip excitation line are respectively Match should.
  • This embodiment combines the microstrip, micro-slot, and multi-layer theory into one, and has the advantages of small size, compact structure, and light weight; and the antenna has good energy radiation performance, high gain, and reliable book.
  • the antenna is linearly arranged, and has a planar emission source to make the microwave beam have better directional selectivity;
  • the dual-polarized antenna is composed of two antenna elements, and the gain can be up to 14dBi, which satisfies the need;
  • Micro-band traces are used inside, which saves the use of connecting cables and reduces the cost. Because of its small size and light weight, the installation is more convenient.
  • the small high-gain dual-polarized microstrip antenna has been tested to meet the operator's requirements for electrical and mechanical performance.
  • the small high-gain dual-board microstrip antenna of this embodiment includes four four-way power splitters placed in the antenna cover 1 (in this example, the four-way power splitter is three Wilkinson and other power splitters are formed in a tree-like series, that is, one-two-two-two-fourth) dual-polarized antenna elements B1, B2, B3, and B4 connected together, and each dual-polarized antenna unit
  • the dual-polarized antenna unit B1 as shown in FIG. 2, the first air dielectric layer 2, the first metal radiating sheet 3, the second air dielectric layer 4, the grounded metal sheet 5, and the first portion are sequentially arranged from top to bottom.
  • the first metal radiation sheet 3 is connected to the radome 1 through an insulating screw 10, a grounded metal sheet 5 is laid on the upper end surface of the first dielectric substrate 6, and is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate 9.
  • the lower end surface of the first dielectric substrate 6 is provided with the front ends being orthogonal to each other and not Contacted bipolar microstrip excitation line 7, 7', upper end of grounded metal piece Two mutually orthogonal opened without touching the stimulated emission microgrooves 12, 12 ', two stimulated emission microgrooves 12, 12' and the distal end of the bipolar microstrip excitation line 7, 7 'respectively, correspond to orthogonal.
  • the first metal radiating piece 3 is circular, and the insulating screw 10 is fixedly connected to the center of the first metal radiating piece 3, and is screwed to the radome 1 through the inner screw hole in the center of the radome 1. This technical solution is advantageous.
  • the height between the first metal radiating piece and the stimulated radiation microgroove is finely adjusted by the rotating screw outside the radome, and the voltage standing wave ratio of the antenna input and output port is conveniently adjusted, matched with the excitation line impedance, and the antenna gain is improved.
  • the circular metal radiating piece has only a high degree of change during the adjustment process, so the adjustment is more convenient.
  • the two stimulated radiation microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double shape, and the double "H" shaped intermediate cross arms are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the "H"-shaped intermediate cross arm of the double "H"-shaped stimulated radiation microgrooves 12, 12' and the X-axis or Y-axis of the grounded metal piece is positive and negative 45 degrees.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • test results show that the gain of the dual-polarized antenna gain is 14dBi at the test frequency of 1900MHz; the half-power lobe width of the horizontal plane is 70
  • Embodiment 14 Small high-gain dual-polarized microstrip antenna
  • a high-gain dual-polarization microstrip antenna which comprises eight dual-polarized antenna units connected by an eight-way signal splitter placed in an antenna cover, each double The polarized antenna unit has a first air dielectric layer, a first metal radiating sheet, a second air dielectric layer, a grounded metal piece, a first dielectric substrate, a bipolar microstrip excitation line, and a third air in order from top to bottom.
  • the first metal radiating fin is connected to the radome through an insulating screw, the grounding metal sheet is laid on the upper end surface of the first dielectric substrate, and is connected to the hollow metal fixed on the metal reflective bottom plate
  • the support is fixedly connected, and the lower end surface of the first dielectric substrate is provided with a bipolar microstrip excitation line whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the grounded metal piece is provided with two mutually orthogonal and non-contacting
  • the stimulated radiation microgrooves, the two stimulated radiation microgrooves and the front ends of the bipolar microstrip excitation lines respectively correspond orthogonally.
  • This embodiment combines the microstrip, microslot, and multi-layer theory into one, and has the advantages of compact size, compact structure, and light weight; and the antenna has good energy radiation performance, high gain, and reliability.
  • the antenna is linearly arranged, and has a planar emission source to make the microwave beam have better directional selectivity; the dual-polarized antenna is composed of two antenna elements, and the gain can reach 17dBi, which satisfies the need; Micro-belt routing is used inside, which saves the use of connecting cables and reduces the cost. Because of its small size and light weight, the installation is more convenient.
  • the high-gain dual-polarized microstrip antenna has been tested to meet the operator's requirements for electrical and mechanical performance.
  • the high-gain dual-polarized microstrip antenna of this embodiment includes eight eight-way splitters placed in the antenna cover 1 (in this example, the eight-way splitter is composed of seven Wilks).
  • the power dividers such as inson are composed of a tree-like serial connection, that is, one-two-two-two-four-four-eighth) dual-polarized antenna elements B1, B2, B3, B4, B5, B6, B7, B8 connected together.
  • the dual-polarized antenna units taking the dual-polarized antenna unit B1 as an example), as shown in FIG. 2, the first air dielectric layer 2, the first metal radiation sheet 3, and the second air are sequentially arranged from top to bottom.
  • the end face is provided with a bipolar microstrip excitation line 7 whose front ends are orthogonal to each other and not in contact with each other.
  • the upper end surface of the grounding metal piece is provided with two mutually orthogonal and non-contacting stimulated radiation micro-grooves 12, 12', two stimulated radiation micro-grooves 12, 12' and a bipolar microstrip excitation line 7, T
  • the front ends correspond to each other orthogonally.
  • the first metal radiating piece 3 is circular, and the insulating screw 10 is fixedly coupled to the center of the first metal radiating piece 3, and is screwed to the radome 1 through the internally threaded hole in the center of the radome 1.
  • the technical solution is beneficial for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna.
  • Gain The circular metal radiating piece has only a high degree of change in the adjustment process, so the adjustment is more convenient.
  • the two stimulated radiation slots 12, 12' on the grounded metal piece 5 are of equal size and have a double "H" shape, and the double "H” shaped intermediate cross arms are orthogonal to each other.
  • the technical solution facilitates the opening of the dual-polarized stimulated micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the intermediate cross arm of the double "H"-shaped stimulated radiation microgrooves 12, 12' and the X-axis or Y-axis of the grounded metal piece is ⁇ ⁇ ⁇ negative - 45 degrees.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the test results show that the gain of the dual-polarized antenna gain is 17dBi at the test frequency of 1900MHz; the half-power lobe width of the horizontal plane is 70 °, the half-power lobe width of the vertical plane is 18°, and the front-to-back ratio is less than -25dB; The standing wave ratio is less than 1.3, and the relative bandwidth of the working frequency band is about 10%.
  • Embodiment 15 It is a high-isolation dual-polarization intelligent array antenna.
  • the technical solution of the present embodiment is as follows: An eight-channel high-isolation dual-polarization smart array antenna, including four objects in the same antenna cover. - The double 3 ⁇ 4: Huatian-line, its special sign is: The 3 ⁇ 4 dual-polarized antenna has two dual-polarized days connected by a two-way splitter Description
  • a line unit in each of the dual-polarized antenna units, having a first air dielectric layer, a first metal radiation piece, a second air dielectric layer, a ground metal piece, a first dielectric substrate, and a bipolar microstrip from top to bottom
  • the excitation wire, the third air dielectric layer, and the metal reflective substrate, the first metal radiation piece is connected to the radome through an insulating screw, and the grounded metal piece is laid on the upper end surface of the first dielectric substrate, and is fixed to the metal
  • the hollow metal support on the reflective bottom plate is fixedly connected, and the lower end surface of the first dielectric substrate is provided with a bipolar microstrip excitation line whose front ends are orthogonal to each other and not in contact, and the upper end surface of the ground metal piece has two open ends
  • the stimulated radiation microgrooves that are orthogonal to each other and do not contact, the two stimulated radiation microgrooves and the front ends of the bipolar microstrip excitation lines respectively correspond orthogonally.
  • the beneficial effects of the embodiment are as follows:
  • the embodiment combines the microstrip, micro-slot and multi-layer theory into one body, has the advantages of small size, compact structure and light weight; and the antenna has good energy radiation performance and high reliability;
  • the antenna adopts a linear arrangement, and has a planar emission source, so that the microwave beam has better directional selectivity;
  • each dual-polarized antenna is composed of two antenna elements, and the gain can reach l ldBi, which satisfies the urban civil residential area, Commercial building coverage and other user-intensive but not very wide areas;
  • Micro-band traces inside the antenna saving the use of connecting cables, low cost; Due to its small size and light weight, the installation is more convenient and can be directly installed.
  • the existing 3G smart antenna mounting bracket does not require additional mounting brackets, thus greatly reducing the installation investment and reducing the cost for future equipment maintenance.
  • This eight-channel high-isolation dual-polarization smart array antenna is suitable for urban use. Residential areas, such as civil residential areas and commercial buildings, are densely populated but not widely distributed. The test fully satisfies the operator's requirements for electrical and mechanical performance indicators, and breaks the inherent idea and mode of using the half-wave oscillator design of the existing smart antennas.
  • the antenna unit with high unit gain is used to form the antenna array, and the same index is achieved.
  • the size of the antenna is greatly reduced, the weight of the antenna is reduced, and the antenna is miniaturized. It can replace the existing 3G antenna and will be a strong competitor of 4G antenna. This practical implementation has achieved miniaturization, making it possible to enter the community, dispelling and alleviating the concern of nearby residents that large antenna radiation is not conducive to health.
  • the eight-channel high-isolation dual-polarization smart array antenna of the present embodiment includes four mutually independent dual-polarized antennas A1, A2, and A3 disposed in the same antenna cover 1.
  • A4 the dual-polarized antenna (for example, the dual-polarized antenna A2) has two dual-polarized antenna units B1 and B2 connected by a two-way power splitter (power splitter such as Wilkinson).
  • the dual-polarized antenna unit taking the dual-polarized antenna unit B1 as an example), as shown in FIG. 2, the first air dielectric layer 2, the first metal slab 3, and the second air medium are sequentially arranged from top to bottom.
  • a layer 4 a grounding metal sheet 5, a first dielectric substrate 6, a bipolar microstrip excitation line 7, 7', a third air shield layer 8, a metal reflective bottom plate 9, the first metal radiating sheet 3 passing through an insulating screw 10 is connected to the radome 1 , the grounding metal piece 5 is laid on the upper end surface of the first dielectric substrate 6 , and is fixedly connected to the hollow metal support 11 fixed on the metal reflective bottom plate, and the lower end surface of the first dielectric substrate 6 Bipolar micro with front ends that are orthogonal to each other and not in contact
  • the excitation wires 7, V and the upper end surface of the grounding metal piece are provided with two mutually opposite and non-contacting stimulated radiation microchannels 12, 12', two stimulated radiation microchannels 12, 12' and bipolar microstrip excitation
  • the front ends of lines 7 and T correspond to each other orthogonally.
  • the first metal radiating piece 3 is circular, and the insulating screw 10 is fixedly coupled to the center of the first metal radiating piece 3, and is screwed to the radome 1 through the internally threaded hole in the center of the radome 1.
  • the technical solution is convenient for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, thereby conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving Antenna gain. Round metal radiator ⁇ . There is only a height change during the adjustment process, so adjustment is more convenient.
  • the two stimulated radiation microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double "H” shape, and the intermediate cross arms of the double "H” shape are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the "H"-shaped intermediate cross arm of the double "H"-shaped stimulated radiation microgrooves I 2 , 12' and the X-axis or the Y-axis of the grounded metal piece is positive and negative 45 degrees.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the test results show that the two ports of the dual-polarized antenna are ideal for isolation from each other, and the isolation index is more than 30dB, which can work independently of each other.
  • Example 16 Eight Channel High Gain High Isolation Dual Polarization Smart Array Antenna
  • An eight-channel high-gain high-isolation dual-polarization smart array antenna includes four mutually independent dual-polarized antennas placed in the same antenna cover, and the feature is:
  • the polarized antenna has four dual-polarized antenna units connected by a four-way power splitter, and each of the dual-polarized antenna units has a first air dielectric layer, a first metal radiating film, and a top from bottom to bottom.
  • a second dielectric layer a grounded metal piece, a first dielectric substrate, a bipolar microstrip excitation line, a third air dielectric layer, and a metal reflective substrate, wherein the first metal radiation piece is connected to the radome through an insulating screw, the grounding
  • the metal piece is laid on the upper end surface of the first dielectric substrate, and is fixedly connected to the hollow metal support fixed on the metal reflective bottom plate.
  • the lower end surface of the first dielectric substrate is provided with the front ends being orthogonal to each other and not in contact with each other.
  • the upper end surface of the grounding metal piece is provided with two mutually orthogonal and non-contacting stimulated radiation microgrooves, and the two stimulated radiation microgrooves and bipolar microstrip excitation Corresponding to the front end respectively orthogonal.
  • the beneficial effects of the embodiment are as follows:
  • the embodiment combines the microstrip, micro-slot and multi-layer theory into one body, has the advantages of small size, compact structure and light weight; and the antenna has good energy radiation performance and high reliability;
  • the antenna adopts a linear arrangement, and has a planar emission source, so that the microwave beam has better directional selectivity;
  • each dual-polarized antenna is composed of two antenna elements, and the gain can reach 14dBi, which satisfies the establishment of the mobile communication base station. Coverage requirements, address signal coverage problems in different geomorphology, different user quantities, different occasions, different ranges, etc.
  • the eight-channel high-gain and high-isolation dual-polarization smart array antenna is suitable for the construction of mobile communication base stations. It has been tested to fully meet the electrical and mechanical performance requirements of operators, and breaks the existing smart antennas with half-wave oscillator design.
  • the antenna unit is composed of antenna elements with high unit gain, and the size of the antenna is greatly reduced, the weight of the antenna is reduced, and the antenna is miniaturized. It can replace the existing 3G antenna and will be a strong competitor for 4G antenna.
  • the eight-channel high-gain high-isolation dual-polarization smart array antenna of the present embodiment includes four mutually independent dual-polarized antennas A1 and A2 disposed in the same antenna cover.
  • A3, A4 the dual-polarized antenna (using the dual-polarized antenna A2 as an example) has four four-way power splitters (in this example, the four-way power splitter is connected by three Wilkinson power splitters)
  • the dual-polarized antenna elements B1, B2, B3, and B4 are connected together, and each of the dual-polarized antenna elements (for example, the dual-polarized antenna unit B1) is as shown in FIG. 2, from top to bottom.
  • first metal radiating sheet 3 is connected to the radome 1 via an insulating screw 10, and the grounding metal sheet 5 is laid on the upper end surface of the first dielectric substrate 6, and is fixed to the metal reflective substrate 9.
  • Hollow metal support 11 fixed connection, first dielectric base The lower end surface of 6 is provided with bipolar microstrip excitation lines 7, 7' whose front ends are orthogonal to each other and not in contact with each other, and the upper end surface of the ground metal piece is provided with two mutually orthogonal and non-contacting stimulated radiation 4 slots 12, 12 ', the two stimulated radiation microchannels 12, 12' and the front ends of the bipolar microstrip excitation lines 7, 7' respectively correspond orthogonally.
  • the first metal radiating piece 3 is circular, and the insulating screw 10 is fixedly coupled to the center of the first metal radiating piece 3, and is screwed to the radome 1 through the internally threaded hole in the center of the radome 1.
  • the technical solution is beneficial for finely adjusting the height between the first metal radiating piece and the stimulated radiation microgroove by the rotating screw outside the radome, conveniently adjusting the voltage standing wave ratio of the antenna input and output port, matching with the impedance of the microstrip excitation line, and improving the antenna.
  • Gain The circular metal radiating piece has only a height change amount during the adjustment process, so the adjustment is more convenient.
  • the two stimulated radiation microgrooves 12, 12' on the grounded metal piece 5 are of equal size and have a double "H” shape, and the double "H” shaped intermediate cross arms are orthogonal to each other.
  • the technical solution is advantageous for opening the dual-polarized stimulated radiation micro-groove on a grounded metal piece with a small area for miniaturization of the antenna.
  • the angle between the "H"-shaped intermediate cross arm of the double "H"-shaped stimulated radiation microchannels I 2 and 12' and the X-axis or the Y-axis of the grounded metal piece is positive and negative "degrees.
  • This technical solution is advantageous for the double The polarized radiation micro-groove is opened on a grounded metal piece with a small area to achieve miniaturization of the antenna.
  • the antenna gain has a gain of 14dB i at the test frequency of 1900MHz; the half-power lobe width of the horizontal plane is 70°, the vertical half-power lobe width is 18°, and the front-to-back ratio is less than -25dB; The ratio is less than 1.3, and the relative bandwidth of the working frequency band is about 10%.
  • Embodiment 17 TD-LTE Network Antenna
  • the product of this embodiment is used to improve the engineering construction difficulties caused by the large existing antenna.
  • the product of this embodiment is a miniaturized TD-LTE dual-polarized 8-channel smart antenna for internal security testing.
  • the low-loss high-frequency shield is used as the filling material in the antenna, and the antenna structure of the radiation sheet of two or more houses is combined, and the shape and dielectric constant of the member in the embodiment 17 are applied.
  • the feeding mode greatly reduces the geometric size of the antenna, thereby achieving multi-band, multi-mode, and miniaturization effects.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

L'invention concerne une antenne à microrubans et à double polarisation, comprenant : au moins une pastille métallique rayonnante, à savoir une première pastille métallique rayonnante (3) ; au moins une couche métallique de masse (5) sur laquelle sont gravées des micro-encoches d'excitation ; au moins une couche diélectrique, à savoir une première couche diélectrique (4), la couche diélectrique (4) étant de préférence une couche diélectrique résonante telle qu'une couche diélectrique résonante faite d'air, ou d'autres couches de matériaux résonants d'optimisation ; au moins un ensemble de microrubans (7, 7') d'excitation bipolaire. La couche diélectrique (4) est disposée entre la première pastille métallique rayonnante (3) et la couche métallique de masse (5). L'antenne à microrubans à double polarisation, avec sa structure rayonnante à couches multiples, est conçue sous un volume relativement petit, ce qui constitue une économie efficace des coûts d'installation et de maintenance de l'antenne, et est largement utilisée dans le domaine des communications mobiles et des technologies internet.
PCT/CN2011/000682 2010-04-07 2011-04-19 Antenne à microrubans et à double polarisation WO2011124094A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN2011800280064A CN103222114A (zh) 2010-09-07 2011-04-19 一种双极化微带天线
EP11765012.7A EP2565985A4 (fr) 2010-04-07 2011-04-19 Antenne à microrubans et à double polarisation
KR1020127029114A KR101318830B1 (ko) 2010-09-07 2011-04-19 일종의 양극화 마이크로 안테나
US13/639,958 US9030364B2 (en) 2010-09-07 2011-04-19 Dual-polarized microstrip antenna
JP2013502986A JP5727587B2 (ja) 2010-09-07 2011-04-19 二偏波マイクロストリップアンテナ

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CN201020152260.8 2010-04-07
CN2010201522580U CN201689984U (zh) 2010-04-07 2010-04-07 方便调试电压驻波比的小型多层微带天线
CN201020152260 2010-04-07
CN201020152258.0 2010-04-07
CN2010201522504U CN201690448U (zh) 2010-04-07 2010-04-07 天线内置式无线通信中继站
CN201020152250.4 2010-04-07
CN2010205200904U CN202121054U (zh) 2010-09-07 2010-09-07 八通道高隔离度双极化智能阵列天线
CN2010205200590U CN201812925U (zh) 2010-09-07 2010-09-07 小型四通道双极化微带天线
CN201020520059.0 2010-09-07
CN201020520086.8 2010-09-07
CN201020520090.4 2010-09-07
CN2010205200779U CN201812927U (zh) 2010-09-07 2010-09-07 小型高增益双极化微带天线
CN2010205201019U CN202121055U (zh) 2010-09-07 2010-09-07 高增益双极化微带天线
CN2010205200868U CN201812928U (zh) 2010-09-07 2010-09-07 微型双极化微带天线
CN2010205201131U CN202121056U (zh) 2010-09-07 2010-09-07 八通道高增益高隔离度双极化智能阵列天线
CN201020520101.9 2010-09-07
CN2010205200711U CN201812926U (zh) 2010-09-07 2010-09-07 小型双极化微带天线
CN201020520071.1 2010-09-07
CN201020520077.9 2010-09-07
CN201020520113.1 2010-09-07
CN2010105294164A CN102332635B (zh) 2010-04-07 2010-11-02 微波低波段多频带高增益双极化小型微带天线
CN201010529416.4 2010-11-02

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TWI712216B (zh) * 2018-11-29 2020-12-01 大陸商深圳市超捷通訊有限公司 天線結構及具有該天線結構的無線通訊裝置
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US20220173530A1 (en) * 2019-08-19 2022-06-02 Murata Manufacturing Co., Ltd. Antenna device and communication device
WO2022144696A1 (fr) * 2020-12-30 2022-07-07 Instituto Tecnológico Metropolitano Dispositif d'antenne syntonisé par la lumière
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CN110190389B (zh) * 2019-06-03 2020-11-20 深圳市景旺电子股份有限公司 一种天线板及其制作方法
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GB2556156B (en) * 2016-09-02 2022-03-30 Taoglas Group Holdings Ltd Multi-band MIMO panel antennas
US11811135B2 (en) 2016-09-02 2023-11-07 Taoglas Group Holdings Limited Multi-band MIMO panel antennas
CN107181058A (zh) * 2017-05-25 2017-09-19 广东工业大学 一种新型双波束定向辐射mimo贴片天线及移动终端
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