WO2019080635A1 - Antenne réseau mimo, antenne mimo et station de base - Google Patents

Antenne réseau mimo, antenne mimo et station de base

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Publication number
WO2019080635A1
WO2019080635A1 PCT/CN2018/103007 CN2018103007W WO2019080635A1 WO 2019080635 A1 WO2019080635 A1 WO 2019080635A1 CN 2018103007 W CN2018103007 W CN 2018103007W WO 2019080635 A1 WO2019080635 A1 WO 2019080635A1
Authority
WO
WIPO (PCT)
Prior art keywords
array
antenna array
reference axis
elements
antenna
Prior art date
Application number
PCT/CN2018/103007
Other languages
English (en)
Chinese (zh)
Inventor
孙善球
刘培涛
黄立文
费锦洲
Original Assignee
京信通信系统（中国）有限公司
京信通信技术(广州)有限公司
京信通信系统（广州）有限公司
天津京信通信系统有限公司
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
Application filed by 京信通信系统（中国）有限公司, 京信通信技术(广州)有限公司, 京信通信系统（广州）有限公司, 天津京信通信系统有限公司 filed Critical 京信通信系统（中国）有限公司
Publication of WO2019080635A1 publication Critical patent/WO2019080635A1/fr

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    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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
    • 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
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a MIMO antenna array, a MIMO antenna, and a base station.
  • MIMO (Multiple-Input Multiple-Output) technology is a multi-antenna technology, that is, a plurality of antennas are respectively arranged at the receiving end and the transmitting end of the wireless communication system, so that signals are transmitted and received through multiple antennas at the transmitting end and the receiving end. Thereby improving communication quality.
  • the technology can make full use of space resources, realize multiple transmission and reception through multiple antennas, and can increase the system capacity by multiple times without increasing spectrum resources and antenna transmission power, and is regarded as a key technology for next-generation mobile communication.
  • the prior art proposes to achieve target beam coverage (for example, 65° beam coverage) by presetting the amplitude, phase weight, and the like of each radiating element in each antenna array.
  • target beam coverage for example, 65° beam coverage
  • the preset amplitude phase weights of each radiating element are complicated to operate, and the radiant energy is consumed, so that the coverage pattern beam of the antenna is offset; on the other hand, the optimal beam width can be achieved.
  • the wave width convergence is still poor.
  • the present invention provides a MIMO antenna array, a MIMO antenna and a base station, which aims to break through the bottleneck of the prior art, improve the electrical performance of the MIMO antenna, and improve the reliability of the antenna operation.
  • the technical solution adopted by the MIMO antenna array of the present invention is:
  • a MIMO antenna array comprising:
  • first antenna array formed by a plurality of first array elements and a second antenna array formed by a plurality of second array elements;
  • the working frequency band of the first antenna array is at least partially identical to the working frequency band of the second antenna array;
  • Each of the first array elements of the first antenna array and each of the second array elements of the second antenna array are alternately arranged in the direction of the reference axis and do not interfere with each other;
  • the center wavelength of the same working frequency band of the first antenna array and the second antenna array is ⁇ , between the first array element and the reference axis, and the second array element and the reference axis The lateral spacing between them is maintained in the range of 0 to 0.3 ⁇ .
  • each of the first array elements of the first antenna array and each of the second array elements of the second antenna array are distributed on the reference axis.
  • each of the first array elements of the first antenna array are distributed on the reference axis, and each of the second array elements of the second antenna array is offset from the same side of the reference axis. Or staggered in different directions perpendicular to the reference axis;
  • Each of the first array elements of the first antenna array is sequentially disposed along a first reference axis
  • each of the second array elements of the second antenna array is sequentially disposed along a second reference axis
  • the second reference axis is disposed on two lateral sides of the reference axis and is parallel to the reference axis;
  • Each of the first array elements of the first antenna array are staggered in different directions perpendicular to the reference axis, and each of the second array elements of the second antenna array is also perpendicular to the reference The different directions of the axes are staggered.
  • the longitudinal spacing between two adjacent first array elements is 0.7 to 1.1 ⁇ .
  • a longitudinal spacing between two adjacent second array elements is 0.7 to 1.1 ⁇ .
  • each of the first array elements and/or each of the second array elements are respectively arranged at equal longitudinal intervals.
  • each of the first array elements and/or each of the second array elements offset from the reference axis and the reference axis is equal.
  • the number of the first array element and the second array element are equal.
  • first array element and/or the second array element comprise a dual polarized radiation unit; the dual polarized radiation unit is a ⁇ 45° polarized element or a vertical/horizontal polarized element.
  • the first antenna array includes a plurality of first radiating units as the first array element and a plurality of second radiating units as the first array element, and each of the first radiations having different structures
  • the unit and each of the second radiating elements are alternately arranged in the order of the reference axis;
  • the second antenna array includes a plurality of third radiating elements as the second array element and a plurality of fourth radiating elements as the second array element, each of the third radiating elements and each having a different structure
  • the fourth radiating elements are alternately arranged in the order of the reference axis.
  • a MIMO antenna includes a reflector and the MIMO antenna array, the MIMO antenna array is disposed on the reflector, and the reference axis is an axisymmetric line of the reflector.
  • the base station provided by the present invention includes the above MIMO antenna.
  • the MIMO antenna array, the MIMO antenna, and the base station of the present invention have at least the following beneficial effects with respect to the prior art:
  • a second array distributed between the first array element and the reference axis distributed along the reference axis direction and along the reference axis direction
  • the lateral spacing between the element and the reference axis is maintained in the range of 0 to 0.3 ⁇ , which not only reduces the difference between the widths of the left and right boundaries of the first antenna array and the second antenna array, but can also be improved to some extent.
  • the left and right boundary symmetry of the first antenna array and the second antenna array thereby improving the radiation pattern symmetry of the first antenna array and the second antenna array, and making the half-power beam width have better convergence and the wave width Narrow, front-to-back ratio and axial cross-polarization can also be significantly improved; it can also reduce the windward area and save the surface resources; in addition, the arrangement of the first array element and the second array element alternately facilitates the whole MIMO.
  • the antenna array has a compact structural size on the reflector and reduces the vertical sidelobe energy in the antenna array pattern such that the vertical plane of each antenna array The sidelobe energy can cancel each other out; the overall performance of the MIMO antenna is improved, and the application prospect is broad.
  • FIG. 1 is a schematic diagram of a first structure of a MIMO antenna array according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a second structure of a MIMO antenna array according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a third structure of a MIMO antenna array according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a fourth structure of a MIMO antenna array according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a fifth structure of a MIMO antenna array according to an embodiment of the present disclosure
  • FIG. 6 is a simulation result diagram of the MIMO antenna array shown in FIG. 1;
  • FIG. 7 is a schematic structural diagram of a conventional MIMO antenna array
  • FIG. 8 is a simulation result diagram of the MIMO antenna array shown in FIG. 7;
  • 100 first antenna array; 101: first array element; 200: second antenna array; 201: second array element; 300: reflection plate; Y 0 : reference axis; Y 1 : first reference axis; Y 2 : Second reference axis; d1: lateral spacing; d2: longitudinal spacing; D1: lateral spacing of array elements in the existing MIMO antenna array relative to the reference axis; D2: longitudinal spacing between adjacent elements in the existing MIMO antenna array.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.
  • a MIMO antenna array according to an embodiment of the present invention includes:
  • first antenna array 100 formed by a plurality of first array elements 101 (not shown, see cross-hatching) and a second antenna formed by a plurality of second array elements 201 (not shown, see circle) Array 200;
  • the operating frequency band of the first antenna array 100 is at least partially identical to the operating frequency band of the second antenna array 200;
  • Each of the first array elements 101 of the first antenna array 100 and the second array elements 201 of the second antenna array 200 are alternately arranged in the order of the reference axis Y 0 and do not interfere with each other;
  • the center wavelength of the same operating frequency band of the first antenna array 100 and the second antenna array 200 is ⁇ , the horizontal direction between the first array element 101 and the reference axis Y 0 and between the second array element 201 and the reference axis Y 0
  • the spacing d1 is maintained in the range of 0 to 0.3 ⁇ .
  • the MIMO antenna array is configured to set the working frequency band of the first antenna array 100 and the operating frequency band of the second antenna array 200 to be at least partially identical, and between the first array element 101 and the reference axis Y 0 distributed along the reference axis Y 0 direction. and a second array element 201 and 0 lateral spacing d1 between the axis Y along the reference axis Y 0 reference distribution can be maintained in the range of 0 ⁇ 0.3 ⁇ , with respect to conventional MIMO antenna array, not only can be reduced while the first The difference between the widths of the left and right boundaries of the antenna array 100 and the second antenna array 200 can improve the left and right boundary symmetry of the first antenna array 100 and the second antenna array 200 to some extent, thereby improving the first antenna array 100.
  • the area and the saving of the surface resources; in addition, the arrangement in which the first array element 101 and the second array element 201 are alternately distributed also facilitates the compact structure of the entire MIMO antenna array on the reflection plate 300. Inch.
  • first antenna array 100 and the second antenna array 200 are respectively subordinate to different network systems; the structures of the first array element 101 and the second array element 201 may be the same or different.
  • the above reference axis Y 0 is a dummy reference line, and in practical applications, the reference axis Y 0 is an axisymmetric line of the reflection plate 300, that is, the reflection plate 300 is symmetrical about the reference axis Y 0 .
  • the first array element 101 and each of the second array elements 201 do not interfere with each other. Specifically, when each of the first array elements 101 and the second array elements 201 are mounted on the reflection plate 300, any first array element 101 and Orthographic projection of any second array element 201 on the reflective plate 300, orthographic projection of any adjacent first array element 101 on the reflective plate 300, and any adjacent second array element 201 on the reflective plate The orthographic projections on 300 have no interference with each other.
  • each of the first array elements 101 of the first antenna array 100 and the second array elements 201 of the second antenna array 200 are distributed on the reference axis Y 0 . That is, the first antenna array 100 and the second antenna array 200 are disposed coaxially.
  • the first antenna array 100 and the second antenna array 200 are disposed on the reflector 300, the first array element 101 and each of the second array elements 201 are symmetrically distributed with respect to the reflection plate 300.
  • the left and right boundaries of the first array element 101 and each of the second array elements 201 are symmetric, so that the radiation patterns of the first antenna array 100 and the second antenna array 200 are horizontally symmetrical, and the half-power beam width has a wide wavelength convergence and a narrow wave width.
  • Antenna gain, front-to-back ratio and axial cross-polarization can reach the optimal level.
  • the windward area can be greatly reduced, and a large amount of surface resources can be saved, so that the reliability of the MIMO antenna is greatly improved.
  • the coaxial arrangement is actually a common technical means for existing dual-frequency or multi-frequency antennas, and It has become a consensus in the art to set two antenna arrays to completely different operating bands when using a coaxial arrangement.
  • the embodiment of the present invention overcomes the prior art bias to set the working frequency band of the first antenna array 100 and the working frequency band of the second antenna array 200 to be at least partially identical. Through multiple experiments, it is found that the performance indexes of the lifting antenna are better. The effect; on this basis, the bandwidth of the working frequency band is less than 20%, which can further improve the performance indexes of the antenna.
  • the bandwidth of the above working frequency band can be further set to less than 16%.
  • FIG. 8 is a simulation result diagram provided by the conventional MIMO antenna array shown in FIG. 7;
  • FIG. 6 is a simulation result diagram provided by the MIMO antenna array shown in FIG. 1, in which the first antenna array 100 is shown.
  • the working frequency band is the same as the operating frequency band of the second antenna array 200.
  • the MIMO antenna array (hereinafter referred to as an embodiment) using the embodiment of the present invention shown in FIG. 1 is compared with the existing MIMO antenna array shown in FIG. 7 (hereinafter referred to as a comparative example). The advantages are detailed and compared.
  • the comparison result of Table 1 above shows that the MIMO antenna array shown in FIG. 1 has a half-power beam width of 63° to 64°, and the wave width is excellent in convergence and the wave width is narrowed compared with the prior art; The ⁇ 60° axial cross polarization is significantly improved.
  • the applicant has repeatedly tested that the MIMO antenna array shown in Figure 1 can reduce the windward area by about 50%, saving the surface resources and greatly improving the reliability of the antenna.
  • the operating frequency band of the first antenna array 100 is at least partially identical to the operating frequency band of the second antenna array 200, and between the first array element 101 and the reference axis Y 0 distributed along the reference axis Y 0 direction and along the reference
  • the lateral spacing d1 between the second array element 201 of the axis Y 0 distribution and the reference axis Y 0 can be maintained within the range of 0 to 0.3 ⁇ ; the first antenna array 100 and the second antenna array 200 can also be used.
  • the arrangement of different axis settings may specifically include the following types of arrangement:
  • each first array of the first antenna array 100 is distributed on the reference axis Y 0
  • each second array of the second antenna array 200 is perpendicular to the reference axis Y.
  • the same direction of 0 alternates the arrangement of the settings.
  • each first array of the first antenna array 100 is distributed on the reference axis Y 0
  • each second array of the second antenna array 200 is perpendicular to the reference axis Y.
  • the different directions of 0 alternately stagger the arrangement of the settings.
  • each of the first antenna array element 100 of the first array along a first reference axis Y 1 are sequentially arranged, each of the second array antenna array element 200 in the second reference axis Y 2 are sequentially disposed, a first reference axis and a second reference axis Y 1 Y is divided to the reference axis Y 2 0 and the lateral sides parallel to the reference axis Y 0.
  • the lateral spacing d1 between the first reference axis Y 1 and the reference axis Y 0 is 0 ⁇ d1 ⁇ 0.3 ⁇
  • the second reference axis Y 2 and the reference axis Y 0 The lateral spacing d1 between them is also 0 ⁇ d1 ⁇ 0.3 ⁇ .
  • each of the first array elements 101 of the first antenna array 100 are staggered in different directions perpendicular to the reference axis Y 0
  • each second array of the second antenna array 200 The elements 201 are also staggered along different directions perpendicular to the reference axis Y 0
  • the first reference axis Y 1 and the second reference axis Y 2 disposed on both sides of the reference axis Y 0 are described above.
  • the first array element 101 and the first array element 101 are alternately distributed on the first reference axis Y 1 and The second array element 201, the second array axis Y 2 is also alternately distributed with the first array element 101 and the second array element 201, and any two adjacent first array elements 101 are respectively located on different reference axes, any two The adjacent second array elements 201 are also located on different reference axes, respectively.
  • the arrangement shown in FIG. 2 to FIG. 5 described above is arranged side by side with respect to the first antenna array 100 and the second antenna array 200 symmetrically arranged with respect to the reference axis Y 0 in the prior art shown in FIG. In addition to good electrical performance, it also helps to reduce the lateral width of the MIMO antenna array, and has a more compact structure size.
  • the longitudinal spacing d2 between two adjacent first array elements 101 in the direction of the reference axis Y 0 is 0.7 to 1.1 ⁇ .
  • the longitudinal spacing d2 is slightly larger than the longitudinal spacing D2 between adjacent two array elements in any of the antenna arrays shown in FIG. 7, such an arrangement can effectively optimize the vertical plane sidelobe level of the antenna.
  • the installation difficulty and cost of the first antenna array 100 and the second antenna array 200 are not increased, the isolation between the arrays can be optimized, the coupling between the columns is reduced, and the difficulty and cost of decoupling are correspondingly reduced. Make the MIMO antenna better in electrical performance and operational reliability.
  • longitudinal spacing d2 specifically refers to the longitudinal spacing d2 between the geometric centers of the two array elements.
  • the above ⁇ also refers to the center wavelength of the same operating frequency band of each of the first array element 101 and the second array element 201.
  • the operating frequency bands of the first antenna array 100 and the second antenna array 200 are preferably identical.
  • the longitudinal spacing d2 between the adjacent two second array elements 201 is also 0.7 to 1.1 ⁇ , which will not be described in detail herein.
  • each of the first array elements 101 and/or each of the second array elements 201 is arranged at an equal longitudinal pitch d2 in the direction of the reference axis Y 0 . That is, in practical applications, the first array elements 101 of the first antenna array 100 are preferably arranged with an equal longitudinal spacing d2. Similarly, the second array elements 201 of the second antenna array 200 are also preferably Equal longitudinal spacing d2 is arranged; to further optimize the sidelobe level. In order to facilitate the installation, it is easy to understand that in the direction of the reference axis Y 0 , the first array elements 101 and the second array elements 201 which are alternately arranged are arranged at equal longitudinal intervals d2, that is, any two adjacent ones.
  • the longitudinal spacing d2 between the first array element 101 and the second array element 201 is equal.
  • it is relatively simple and easy to use an equally spaced arrangement or an equal spacing arrangement, and no limitation is imposed herein.
  • the lateral spacing d1 is equal to the reference axis Y 0 between the biasing element disposed in each of the first array 101 and / or 201 of each array element with a second reference axis Y 0.
  • the lateral spacing d1 between the second array elements 201 and the reference axis Y 0 is equal, and the first array elements 101 of the first antenna array 100 are coaxial.
  • the second array elements 201 of the second antenna array 200 are distributed and distributed coaxially, which is advantageous for reducing installation difficulty and cost.
  • the lateral spacing d1 between the second array elements 201 and the reference axis Y 0 is equal, which is advantageous for improving the symmetry of the left and right boundaries of the second antenna array 200.
  • the radiation pattern symmetry of the second antenna array 200 is further improved.
  • the lateral spacing d1 between the first reference axis and the reference axis Y 1 Y 0 is equal to the second reference axis Y and the transverse direction between the reference axis Y 0
  • the spacing d1, the first array elements 101 of the first antenna array 100 are coaxially distributed, and the second array elements 201 of the second antenna array 200 are coaxially distributed, which is advantageous for reducing installation difficulty and cost.
  • a first reference axis Y between a lateral spacing d1 and the reference axis Y 0 is equal to the second reference axis Y and the transverse direction between the reference axis Y 0
  • the spacing d1 is advantageous for improving the symmetry of the left and right boundaries of the first antenna array 100 and the symmetry of the left and right boundaries of the second antenna array 200, thereby improving the radiation pattern symmetry of the first antenna array 100 and the second antenna array 200, and
  • the wave width can be further compressed to improve the degree of coupling between the columns.
  • the number of first array elements 101 included in the first antenna array 100 in the MIMO antenna array is equal to the number of second array elements 201 included in the second antenna array 200.
  • the first antenna array 100 includes six first array elements 101
  • the second antenna array 200 includes six second array elements 201.
  • it can also be set according to the horizontal beam width, vertical beam width, and gain requirement of the MIMO antenna in actual use. Therefore, the number of the first array element 101 and the second array element 201 involved in the embodiment of the present invention is only for exemplifying the specific embodiment of the present invention, and cannot constitute any structure on the MIMO antenna array and the MIMO antenna. limited.
  • the first array element 101 and/or the second array element 201 comprise dual polarized radiation elements.
  • the use of dual-polarized radiating elements is beneficial to improve the stability of communication performance.
  • the dual-polarized radiating element may be a common ⁇ 45° polarizing element or a vertical/horizontal polarizing element, which is not limited herein.
  • the first array element 101 and/or the second array element 201 may have a three-dimensional spatial stereoscopic structure, or may be a conventional planar printed radiation unit (for example, a microstrip oscillator), a patch oscillator, or a half-wave oscillator. It can also be a combination of any of the above types of antenna elements.
  • the shapes of the first array element 101 and the second array element 201 may be a square shape, a diamond shape, a circular shape, an elliptical shape, a cross shape, etc., and can be flexibly selected according to actual needs.
  • an optional structure is that each of the first array elements 101 of the first antenna array 100 can adopt the same radiating unit to simplify the installation.
  • the first antenna array 100 includes two types of radiating elements having different structures, that is, the first antenna array 100 includes a plurality of first radiating elements as the first array element 101 and serves as the first array. a plurality of second radiating elements of the element 101, each of the first radiating elements and the second radiating elements having different structures are alternately distributed along the reference axis Y 0 direction; such a structure is advantageous for reducing the coupling degree between the columns, thereby improving the inter-column isolation .
  • each of the second array elements 201 in the second antenna array 200 may also adopt the same radiating unit to simplify the installation; or the second antenna array 200 includes a plurality of third radiations as the second array element 201.
  • the unit and the plurality of fourth radiating elements as the second array element 201, the third radiating elements and the fourth radiating elements having different structures are alternately distributed along the reference axis Y 0 direction; details are not described herein.
  • the embodiment of the present invention further provides a MIMO antenna, including a reflector 300 and the MIMO antenna array.
  • the MIMO antenna array is disposed on the reflector 300, and the reference axis Y 0 is an axisymmetric line of the reflector 300.
  • the first array elements 101 of the first antenna array 100 and the second array elements 201 of the second antenna array 200 are disposed on the same side of the reflection plate 300.
  • some or all of the first array elements 101 in the first antenna array 100 may be disposed on the reflective plate 300 through an insulating module (not shown); correspondingly, portions of the second antenna array 200 Or all of the second array elements 201 may also be disposed on the reflective plate 300 through the insulating module.
  • the insulating module can function as a mounting base.
  • the first array element 101 and the second array element 201 are disposed on the insulating module for convenient disassembly, and the insulating property of the insulating module can effectively avoid the current conduction between the respective array elements. Interference, which is beneficial to improve the stability of antenna communication.
  • An embodiment of the present invention further provides a base station, including the foregoing MIMO antenna.
  • the above MIMO antenna and the base station are based on the same concept as the MIMO antenna array embodiment of the present invention, and the technical effects thereof are the same as those of the MIMO antenna array embodiment of the present invention.
  • the description of the MIMO antenna array embodiment of the present invention I won't go into details here.
  • MIMO antenna and base station are further provided with other required components, structures or systems such as a phase shifting system, a combiner and a shaping network, and these components, structures or systems are common in the prior art. Therefore, it will not be described in detail.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne une antenne réseau à entrées multiples sorties multiples (MIMO), comprenant : une première antenne réseau qui est formée par de multiples premiers éléments de réseau et une seconde antenne réseau qui est formée par de multiples seconds éléments de réseau, la plage de fréquences de travail de la première antenne réseau étant au moins partiellement identique à la plage de fréquences de travail de la seconde antenne réseau; chaque premier élément de réseau de la première antenne réseau et chaque second élément de réseau de la seconde antenne réseau sont répartis alternativement en séquence le long de la direction d'un axe de référence et n'interfèrent pas les uns avec les autres; la distance transversale entre le premier élément de réseau et l'axe de référence ainsi qu'entre le second élément de réseau et l'axe de référence se situant dans la plage de 0 à 0,3 lambda. L'antenne réseau MIMO peut réduire l'espace entre les largeurs des limites gauche et droite de la première antenne réseau et de la seconde antenne réseau de façon à améliorer la symétrie d'une image dans la direction de rayonnement de sorte que la convergence en largeur d'onde de la largeur du faisceau à demi-puissance est améliorée, et que la largeur d'onde est rétrécie, tandis que le rapport avant-arrière et la polarisation croisée axiale sont améliorés; en outre, la zone au vent peut être réduite de manière à économiser des ressources de surface d'antenne. La présente invention concerne en outre une antenne MIMO et une station de base comprenant l'antenne réseau MIMO.
PCT/CN2018/103007 2017-10-27 2018-08-29 Antenne réseau mimo, antenne mimo et station de base WO2019080635A1 (fr)

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CN201711023915.4A CN107887684B (zh) 2017-10-27 2017-10-27 Mimo天线阵列、mimo天线及基站

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CN107887684B (zh) * 2017-10-27 2019-11-05 京信通信系统（中国）有限公司 Mimo天线阵列、mimo天线及基站
CN109638429A (zh) * 2019-01-18 2019-04-16 环旭电子股份有限公司 天线装置
CN112787080B (zh) * 2019-11-07 2024-01-02 Oppo广东移动通信有限公司 天线模组及电子设备

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CN104067442A (zh) * 2011-12-23 2014-09-24 阿尔卡特朗讯 交叉极化多频带平板天线
CN106785485A (zh) * 2016-12-29 2017-05-31 华中科技大学 一种一维双重冗余天线阵列及构造方法
CN107887684A (zh) * 2017-10-27 2018-04-06 京信通信系统（中国）有限公司 Mimo天线阵列、mimo天线及基站

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