WO2013143443A1 - Antenne à trois faisceaux à double polarisation pour station de base de communication mobile - Google Patents

Antenne à trois faisceaux à double polarisation pour station de base de communication mobile Download PDF

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Publication number
WO2013143443A1
WO2013143443A1 PCT/CN2013/073201 CN2013073201W WO2013143443A1 WO 2013143443 A1 WO2013143443 A1 WO 2013143443A1 CN 2013073201 W CN2013073201 W CN 2013073201W WO 2013143443 A1 WO2013143443 A1 WO 2013143443A1
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WO
WIPO (PCT)
Prior art keywords
butler matrix
antenna
port
mixer
power
Prior art date
Application number
PCT/CN2013/073201
Other languages
English (en)
Chinese (zh)
Inventor
吴壁群
Original Assignee
广东博纬通信科技有限公司
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
Priority claimed from CN201210080959.1A external-priority patent/CN102544763B/zh
Application filed by 广东博纬通信科技有限公司 filed Critical 广东博纬通信科技有限公司
Publication of WO2013143443A1 publication Critical patent/WO2013143443A1/fr

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Classifications

    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix

Definitions

  • the present invention relates to the field of wireless communications, and in particular to a dual-polarized three-beam antenna for a mobile communication base station. Background technique
  • the base station antenna which is one of the key components of mobile communication systems, correspondingly with the construction of mobile communication networks And it is getting more and more important.
  • a dual-polarized three-beam antenna for a mobile communication base station comprising: a metal floor, at least three parallel linear antenna arrays, at least three first power splitters, and at least three second power splitters
  • the first Butler matrix feed network and the second Butler matrix feed network the number of the first power splitter is equal to the number of columns of the linear antenna array, and the number of the second power splitter is equal to the number of columns of the linear antenna array
  • the linear antenna array is disposed on the upper surface of the metal floor, and the first power splitter and the second power splitter are disposed on the lower surface of the metal floor;
  • Each column of linear antenna arrays is composed of at least two identical antenna radiating elements, each antenna radiating unit consisting of one +45 degree polarization antenna unit and one -45 degree polarization antenna unit, and +45 The polarization unit of the antenna and the antenna unit of the -45 degree polarization are vertically cross-combined;
  • Each input port of the first Butler matrix feed network is connected to a signal input cable, and each output port of the first Butler matrix feed network is electrically connected to a power synthesis port of each first power splitter;
  • Each input port of the second Butler matrix feed network is connected to the signal input cable, and each output port of the second Butler matrix feed network is electrically connected to the power synthesis port of each second power splitter;
  • the number of power distribution ports of each first power splitter is equal to the number of antenna elements of the +45 degree polarization mode in each column of linear antenna arrays, and the number of power distribution ports of each second power splitter is The number of antenna elements in the -45 degree polarization mode in the linear antenna array is equal;
  • Each power distribution port of each first power splitter is electrically connected to an antenna unit of a +45 degree polarization mode in the same linear antenna array; each power distribution port of each second power splitter is respectively in the same column
  • the antenna unit of the -45 degree polarization mode in the linear antenna array is electrically connected.
  • the first power splitter and the second power splitter have the same structure, and the power distribution amplitudes of the power split ports of each power splitter are the same, and the power allocated by each adjacent power distribution port of each power splitter has the same power.
  • the phase difference is such that the antenna vertical pattern has the same tilt angle.
  • the inclination angle is an uptilt angle or a downtilt angle, and the uptilt angle ranges from 0 to 40 degrees, and the downtilt angle ranges from 0 to 40 degrees.
  • the distance between two adjacent linear antenna arrays is 0.3 ⁇ -1.5 ⁇ , and the distance between adjacent antenna radiating elements in each linear antenna array is 0.3 ⁇ -1.5 ⁇ .
  • the linear antenna arrays are parallel to each other, and both ends of all linear antenna arrays are aligned with each other.
  • the linear antenna arrays are parallel to each other, and the ends of all the odd columns are aligned with each other, and the ends of all the even columns are aligned with each other.
  • each Butler matrix feed network consists of a three-way Butler matrix.
  • the input ports of the three-way Butler matrix are isolated from each other, and the input ports of the three-way Butler matrix are used as input ports of the Butler matrix feed network, and the output ports of the three-way Butler matrix are used as Butler matrix feeds.
  • the output port of the electrical network is the same.
  • each Butler matrix feed network consists of a three-way Butler matrix. It is composed of one power divider network, and the input ports of the three-way Butler matrix are isolated from each other. The output ports of the three-way Butler matrix are connected to the input port of the power splitter network, and the number of output ports of the power splitter network. Equal to the number of columns of the linear antenna array, each input port of the three-way Butler matrix is used as a Butler matrix. The input port of the feeder network, and each output port of the power divider network serves as an output port of the Butler Matrix feed network.
  • the three-way Butler matrix is composed of a first mixer, a second mixer, a third mixer, a first phase shifter, a second phase shifter, and a third phase shifter;
  • Each mixer includes a first input port, a second input port, a first output port, and a second output port, and each phase shifter includes an input port and an output port;
  • the two input ports of the first mixer and the second input port of the second mixer respectively serve as input ports of the three-way Batple matrix
  • the first output port of the first mixer is connected to the first input port of the third mixer through the first phase shifter, and the second output port of the first mixer is connected to the first input port of the second mixer, second a first output port of the mixer is coupled to a second input port of the third mixer;
  • An input port of the second phase shifter is connected to the first output port of the third mixer, and an input port of the third phase shifter is connected to the second output port of the second mixer;
  • the output port of the second phase shifter, the second output port of the third mixer, and the output port of the third phase shifter respectively serve as output ports of the three-way Butler matrix.
  • the antenna structure of the present invention can form three fixed-pointed dual-polarized beams in the horizontal direction, and form a single fixed-pointed dual-polarized beam in the vertical direction, and the interference between the three beams in the horizontal direction is small.
  • the three-beam antenna made according to the technical scheme of the present invention has good anti-interference effect, stable performance, large signal capacity, easy installation, can effectively reduce cost, and satisfies user requirements well.
  • Figure 1 is a side elevational view of the overall construction of the present invention.
  • Figure 2 is a plan view of the overall structure of the present invention.
  • Figure 3 is a schematic plan view of a linear array of linear antennas.
  • Figure 4 is a schematic illustration of an antenna radiating element.
  • Figure 5 is a schematic diagram of the first power splitter.
  • Figure 6 is a schematic diagram of the second power splitter.
  • FIG. 7 and 8 are schematic diagrams of a Butler matrix feed network.
  • Figure 9 is a schematic view showing the structure of a three-way Butler matrix. detailed description
  • the dual-polarized three-beam antenna for the mobile communication base station of the present invention includes at least three parallel linear antenna arrays 104 (illustrated by taking five columns in FIG. 1 as an example), and the metal floor 103 At least three first power splitters 105 (illustrated by taking five as an example in FIG. 2) and at least three second power splitters 106 (in FIG. 2, five are taken as an example), the first bart
  • the number of the first power dividers 105 is equal to the number of columns of the linear antenna array 104
  • the number of the second power dividers 106 and the columns of the linear antenna array 104 are the number of the first power dividers 105 and the second butler matrix feed network 108.
  • the numbers are equal, the linear antenna array 104 is disposed on the upper surface of the metal floor 103, and the first power splitter 105 and the second power splitter 106 are disposed on the lower surface of the metal floor 103.
  • the distance between adjacent two columns of linear antenna arrays 104 is 0.3 ⁇ -1.5 ⁇ . In the present embodiment, the distance between adjacent two columns of linear antenna arrays 104 is 0.5 ⁇ .
  • Each column of the linear antenna array 104 is composed of at least two (illustrated by taking six as an example in FIG. 3) the same antenna radiating unit 203, and the distance between the adjacent antenna radiating elements 203 in each column is 0.3 ⁇ -1.5 ⁇ . In the present embodiment, the distance between adjacent antenna radiating elements 203 in each column of linear antenna arrays 104 is 0.8 ⁇ . Where ⁇ represents the wavelength corresponding to the center frequency of the antenna operating frequency band in air.
  • the arrangement of the linear antenna arrays 104 is as follows:
  • Each linear antenna array is parallel to each other, and both ends of all linear antenna arrays are aligned with each other.
  • the linear antenna arrays are parallel to each other, and the ends of all the odd columns are aligned with each other, and the ends of all the even columns are aligned with each other.
  • each antenna radiating unit 203 is composed of an antenna unit 202 of a +45 degree polarization mode and an antenna unit 201 of a -45 degree polarization mode, and an antenna unit 202 of a +45 degree polarization mode.
  • the antenna elements 201 of the -45 degree polarization mode are vertically cross-combined.
  • each first power splitter 105 has one power synthesis port 402 and several power distribution ports 403, and the number of power distribution ports 403 of each first power divider 105 is linear with each column.
  • the number of antenna elements in the +45 degree polarization mode in the antenna array 104 is equal (a six-power splitter is used in FIG. 5);
  • each second power splitter 106 has one power synthesis port 404 and several Power allocation Port 405, each of the second power splitter 106 power distribution port number 404 and the number of the antenna array of each row linear polarization of -45 degrees in the cell is equal to 104 (in FIG. 6 is used in a sub- Six power dividers).
  • the allocated power amplitude and phase of each power distribution port 403 of each first power splitter 105 and each power distribution port 405 of the second power splitter 106 can be determined according to actual needs.
  • the first power splitter 105 and the second power splitter 106 have the same structure.
  • the power distribution widths of the power distribution ports of each power splitter are the same, and the power allocated by each adjacent power distribution port of each power splitter has the same phase difference, so that the vertical pattern of the antenna has the same Inclination.
  • the inclination angle is an updip angle or a downtilt angle; the uptilt angle ranges from 0 degrees to 40 degrees, and the downtilt angle ranges from 0 degrees to 40 degrees. In the present embodiment, the inclination angle is removed by 9 degrees.
  • each Butler matrix feed network consists of a three-way Batple matrix 602, as shown in FIG.
  • the input ports of the three-way Butler matrix 602 are isolated from each other, and the input ports of the three-way Butler matrix 602 serve as input ports of the Butler matrix feed network, and the output ports of the three-way Butler matrix 602 serve as a Butler matrix.
  • the output port of the feed network is the same.
  • each Butler matrix feed network consists of a three-way Butler matrix 602 and a power divider network 601, as shown in FIG.
  • the input ports of the three-way Butler matrix 602 are isolated from each other, the output port of the three-way Butler matrix 602 is connected to the input port of the power divider network 601, the number of output ports of the power divider network 601 and the column of the linear antenna array 104 The number is the same.
  • FIG. 9 is a specific circuit structure of the three-way Butler matrix 602.
  • the three-way Butler matrix 602 is composed of a first mixer 801, a second mixer 802, a third mixer 803, a first phase shifter 804, a second phase shifter 805, and a third phase shifter 806.
  • Each mixer includes a first input port, a second input port, a first output port, and a second output port, and each phase shifter includes an input port and an output port.
  • the two input ports of the first mixer 801 and the second input port of the second mixer 802 serve as input ports for the three-way Butler matrix, respectively.
  • the first output port of the first mixer 801 is coupled to the first input port of the third mixer 803 via the first phase shifter 804, the second output port of the first mixer 801 and the first input of the second mixer 802 a port connection, a first output port of the second mixer 802 is connected to a second input port of the third mixer 803;
  • the input port of the second phase shifter 805 is connected to the first output port of the third mixer 803, and the input port of the third phase shifter 806 is connected to the second output port of the second mixer 802.
  • the output port of the second phase shifter 805, the second output port of the third mixer 803, and the output port of the third phase shifter 806 serve as output ports of the three-way Butler matrix 602, respectively.
  • Each input port of the first Butler matrix feed network 107 and the second Butler matrix feed network 108 is connected to a signal input cable, and each output port of the first Butler matrix feed network 107 is respectively associated with each first splitter
  • the power synthesis ports 402 of the second power divider 106 are electrically connected to the power synthesis ports 404 of the second power dividers 106.
  • Each power distribution port 403 of each first power splitter 105 is electrically connected to the antenna unit 202 of the +45 degree polarization mode in the same linear array antenna 104; each power distribution of each second power divider 106
  • the port 405 is electrically connected to the antenna unit 201 of the -45 degree polarization mode in the linear array antenna 104 of the same column.
  • the signal phase of the output port changes linearly. Therefore, when the input ports of the Butler Matrix feed network are fed, the radiation beam directions of the antenna in the horizontal direction are different, wherein the input port 1 generates a beam with a horizontal 0 degree pointing, and the input port 2 generates a beam with a horizontal -40 degree pointing, input. Port 3 produces a beam with a horizontal +40 degree pointing.
  • the antenna When the three ports of the first Butler matrix feed network 107 are simultaneously fed, the antenna generates three +45 degree polarized beams that are horizontally oriented at 0 degrees and ⁇ 40 degrees, and are inclined by 9 degrees in the vertical direction; When the three ports of the two Butler matrix feed network 108 are simultaneously fed, the antenna produces three -45 degree polarized beams whose horizontal direction is 0 degrees, ⁇ 40 degrees, and which is inclined by 9 degrees in the vertical direction. Therefore, when the six ports of the two Butler matrix feed networks are simultaneously fed, the antenna can generate three horizontal patterns pointing to 0 degrees, ⁇ 40 degrees, and the vertical pattern having a ⁇ 45 degree double of 9 degrees down. Polarized 3 beams.
  • the antenna structure of the present invention can form three fixed-pointed dual-polarized beams in the horizontal direction, and form a single fixed-pointed dual-polarized beam in the vertical direction, and the interference between the three beams in the horizontal direction is small.
  • the three-beam antenna made according to the technical solution of the present invention has stable performance, large signal capacity, easy installation, can effectively reduce cost, and satisfies user requirements well.
  • the beam pointing and beam width of the present invention can be adjusted according to different requirements. By adjusting the number of columns of the linear antenna array, the distance between two adjacent linear antenna arrays, and the straight line of each column in the present scheme. The number of radiating elements of the antenna array, the distance between adjacent radiating elements, the distributed power amplitude and phase of the power splitter power distribution port, and thus the modification of the beam pointing and width are also within the scope of the present invention. In addition, modifications that change the number of horizontal beams by adjusting the number of feed ports are also within the scope of the present invention.

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

Abstract

La présente invention porte sur une antenne à trois faisceaux à double polarisation pour station de base de communication mobile, qui comprend une carte de plancher métallique, au moins 3 lignes d'antennes réseaux linéaires parallèles l'une à l'autre, au moins 3 premiers diviseurs de puissance, au moins 3 seconds diviseurs de puissance, un premier réseau d'alimentation à matrice de Butler et un second réseau d'alimentation à matrice de Butler. Chaque ligne d'antenne réseau linéaire est formée d'au moins 2 mêmes unités rayonnantes d'antenne. La structure d'antenne de la présente invention permet de former 3 faisceaux à double polarisation ayant des orientations fixes dans la direction horizontale et de former un unique faisceau à double polarisation ayant une orientation fixe dans la direction verticale. Les brouillages entre les 3 faisceaux dans la direction horizontale sont faibles. L'antenne à trois faisceaux fabriquée selon la solution technique de la présente invention offre un effet antibrouillage souhaitable, des performances stables et une grande capacité de signal, est facile à installer et peut efficacement réduire le coût et bien répondre aux exigences des utilisateurs.
PCT/CN2013/073201 2012-03-26 2013-03-26 Antenne à trois faisceaux à double polarisation pour station de base de communication mobile WO2013143443A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210080959.1A CN102544763B (zh) 2011-12-27 2012-03-26 一种用于移动通信基站的双极化三波束天线
CN201210080959.1 2012-03-26

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WO2013143443A1 true WO2013143443A1 (fr) 2013-10-03

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1476654A (zh) * 2001-10-11 2004-02-18 I 双极化天线阵列
CN102064379A (zh) * 2010-07-29 2011-05-18 摩比天线技术（深圳）有限公司 一种电调天线及基站
CN102544763A (zh) * 2011-12-27 2012-07-04 广东博纬通信科技有限公司 一种用于移动通信基站的双极化三波束天线

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1476654A (zh) * 2001-10-11 2004-02-18 I 双极化天线阵列
CN102064379A (zh) * 2010-07-29 2011-05-18 摩比天线技术（深圳）有限公司 一种电调天线及基站
CN102544763A (zh) * 2011-12-27 2012-07-04 广东博纬通信科技有限公司 一种用于移动通信基站的双极化三波束天线

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