CN102544759B - Unipolar sixteen-beam antenna for mobile communication base station - Google Patents

Unipolar sixteen-beam antenna for mobile communication base station Download PDF

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Publication number
CN102544759B
CN102544759B CN201210045538.5A CN201210045538A CN102544759B CN 102544759 B CN102544759 B CN 102544759B CN 201210045538 A CN201210045538 A CN 201210045538A CN 102544759 B CN102544759 B CN 102544759B
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power
butler matrix
port
feeding network
matrix feeding
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CN102544759A (en
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章致光
罗翠琼
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Guangdong Broadradio Communication Technology Co Ltd
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Guangdong Broadradio Communication Technology Co Ltd
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    • 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
    • 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
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • 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

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  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention relates to a unipolar sixteen-beam antenna for a mobile communication base station. The unipolar ten-beam antenna for the mobile communication base station comprises a metal floor, at least eight lines of parallel linear aerial arrays, at least eight first power dividers, at least eight second power dividers, a first Butler matrix feed network and a second Butler matrix feed network, wherein each line of linear aerial array consists of at least two same antenna radiation units. According to the antenna structure, eight beams with fixed orientation can be formed in the horizontal direction; two beams with fixed orientation can be formed in the vertical direction; small interference exists among the eight beams in the horizontal direction; and small interference exists between the two beams in the vertical direction. The sixteen-beam antenna manufactured according to the technical scheme has a good anti-interference effect and stable performance, is easy to assemble, and can effectively reduce cost and well meet the requirements of users.

Description

A kind of single polarization 16 beam antennas for mobile communication base station
Technical field
The present invention relates to wireless communication field, particularly a kind of single polarization 16 beam antennas for mobile communication base station.
Background technology
The sharply increase with service of mobile communication that develops rapidly along with mobile communication technology, the overlay area of mobile communications network is constantly expanding and perfect, as the antenna for base station of one of mobile communication system critical component, correspondingly along with the construction of mobile communications network, becomes more and more important.
Traditional antenna for base station is to communicate by produce a fixing broad beam in overlay area, owing to easily producing to disturb, message capacity is reduced like this.
Summary of the invention
In view of this, be necessary for the problems referred to above, single polarization 16 beam antennas for mobile communication base station that a kind of anti-jamming effectiveness is good are provided.
A kind of single polarization 16 beam antennas for mobile communication base station, comprise the collinear array that metal floor, at least 8 row are parallel to each other, at least 8 the first power splitters, at least 8 the second power splitters, the first butler matrix feeding network, the second butler matrix feeding network, the quantity of the first power splitter equates with the columns of collinear array, the quantity of the second power splitter equates with the columns of collinear array, collinear array is arranged on the upper surface of metal floor, and the first power splitter and the second power splitter are arranged on the lower surface of metal floor;
Every row collinear array is comprised of at least 2 identical antenna radiation units, each antenna radiation unit is comprised of the antenna elements of 1+45 degree antenna elements of polarization modes and 1-45 degree polarization mode, and+antenna elements of 45 degree polarization modes and the antenna element square crossings of-45 degree polarization modes combine;
Each input port of the first butler matrix feeding network is connected with signal input cable, and each output port of the first butler matrix feeding network is electrically connected with the synthetic port of power of each the first power splitter respectively; Each input port of the second butler matrix feeding network is connected with signal input cable, and each output port of the second butler matrix feeding network is electrically connected with the synthetic port of power of each the second power splitter respectively;
The quantity of the power division port of each the first power splitter with in every row collinear array+numbers of antenna element of 45 degree polarization modes equate, the quantity of the power division port of each the second power splitter equates with the number that-45 in every row collinear array spent the antenna element of polarization mode;
Each power division port of each the first power splitter respectively with same row collinear array in+antenna elements of 45 degree polarization modes are electrically connected; Each power division port of each the second power splitter respectively with same row collinear array in the antenna elements of-45 degree polarization modes be electrically connected.
The distance of adjacent two row collinear arrays is 0.3 λ-1.5 λ, and in every row collinear array, the distance of adjacent antenna radiating element is 0.3 λ-1.5 λ.
Each collinear array is parallel to each other, and aligns mutually in the two ends of all collinear arrays.
Each collinear array is parallel to each other, and the two ends of all odd columns align mutually, aligns mutually in the two ends of all even columns.
The distribution power magnitude of each power division port of each the first power splitter is identical, each adjacent power of each the first power splitter distributes the distribution power of port to have identical phase difference, make height pattern have an angle of declination, the span of angle of declination is that 0 degree is to 40 degree.
The distribution power magnitude of each power division port of each the second power splitter is identical, each adjacent power of each the second power splitter distributes the distribution power of port to have identical phase difference, make height pattern have a top rade, the span of top rade is that 0 degree is to 40 degree.
The structure of the first butler matrix feeding network and the second butler matrix feeding network is identical, when the columns of collinear array equals 8, each butler matrix feeding network is comprised of 1 Ge Ba road butler matrix, isolation mutually between each input port of eight road butler matrixs, each input port of eight road butler matrixs is as the input port of butler matrix feeding network, and each output port of eight road butler matrixs is as the output port of butler matrix feeding network.
The structure of the first butler matrix feeding network and the second butler matrix feeding network is identical, when the columns of collinear array is greater than 8, each butler matrix feeding network is comprised of 1 Ge Ba road butler matrix and 1 power divider network, isolation mutually between each input port of eight road butler matrixs, each output port of eight road butler matrixs connects the input port of power divider network, the quantity of the output port of power divider network equates with the columns of collinear array, each input port of eight road butler matrixs is as the input port of butler matrix feeding network, each output port of power divider network is as the output port of butler matrix feeding network.
Antenna structure of the present invention can form the wave beam of 8 fixed directional in the horizontal direction, forms in vertical direction the wave beam of 2 fixed directional, and the interference between 8 wave beams of horizontal direction is little, and the interference between 2 wave beams of vertical direction is little.16 beam antennas that technical scheme according to the present invention is made, anti-jamming effectiveness is good, and stable performance is easy to install, and can effectively reduce costs, and meets consumers' demand well.
Accompanying drawing explanation
Fig. 1 is the end view of general structure of the present invention.
Fig. 2 is the vertical view of general structure of the present invention.
Fig. 3 is the planar alignment schematic diagram of aerial array.
Fig. 4 is the schematic diagram of antenna radiation unit.
Fig. 5 is the schematic diagram of the first power splitter.
Fig. 6 is the schematic diagram of the second power splitter.
Fig. 7 and Fig. 8 are the schematic diagram of butler matrix feeding network.
The structural representation of Tu9Wei eight road butler matrixs.
Embodiment
Refer to Fig. 1 and Fig. 2, the present invention comprises that for single polarization 16 beam antennas of mobile communication base station collinear array 104(Fig. 1 that at least 8 row are parallel to each other classifies example as with 14 to describe), metal floor 103, in at least 8 first power splitter 105(Fig. 2, be take 14 describe as example), in at least 8 second power splitter 106(Fig. 2, be take 14 describe as example), the first butler matrix feeding network 107, the second butler matrix feeding network 108, the quantity of the first power splitter 105 equates with the columns of collinear array 104, the quantity of the second power splitter 106 equates with the columns of collinear array 104, collinear array 104 is arranged on the upper surface of metal floor 103, the first power splitter 105 and the second power splitter 106 are arranged on the lower surface of metal floor 103.
Refer to Fig. 3, the distance of adjacent two row collinear arrays 104 is 0.3 λ-1.5 λ.By at least 2 (in Fig. 3 are take 10 describe as example), identical antenna radiation unit 203 forms every row collinear array 104, and in every row, the distance of adjacent antenna radiating element 203 is 0.3 λ-1.5 λ.Wherein, λ represents the wavelength of centre frequency correspondence in air of antenna working frequency range.
The arrangement mode of each collinear array 104 has:
1, each collinear array is parallel to each other, and aligns mutually in the two ends of all collinear arrays.
2, each collinear array is parallel to each other, and the two ends of all odd columns align mutually, aligns mutually in the two ends of all even columns.
Refer to Fig. 4, each antenna radiation unit 203 is comprised of the antenna elements 201 of 1+45 degree antenna elements 202 of polarization modes and 1-45 degree polarization mode, and+antenna elements 202 of 45 degree polarization modes and antenna element 201 square crossings of-45 degree polarization modes combine.
Refer to Fig. 5, each first power splitter 105 has the synthetic port 402 of 1 power and several power division ports 403, the quantity of the power division port 403 of each the first power splitter 105 with in every row collinear array 104+45 numbers of spending the antenna element of polarization modes equate (what in Fig. 5, adopt is one minute ten power splitter).The distribution power magnitude of each power division port 403 of each the first power splitter 105 and phase place can be come to determine according to the actual requirements.In the present embodiment, the distribution power magnitude of each power division port 403 of each the first power splitter 105 is identical.Each adjacent power of each the first power splitter 105 distributes the distribution power of port 403 to have identical phase difference, makes height pattern have an angle of declination, the span of angle of declination be 0 degree to 40 degree, in the present embodiment, angle of declination is 6 degree.
Refer to Fig. 6, each second power splitter 106 has the synthetic port 404 of 1 power and several power division ports 405, and the quantity of the power division port 404 of each the second power splitter 106 equates (what in Fig. 6, adopt is one minute ten power splitter) with the number of the antenna element of the degree of-45 in every row collinear array 104 polarization mode.The distribution power magnitude of each power division port 405 of each the second power splitter 106 and phase place can be come to determine according to the actual requirements.In the present embodiment, the distribution power magnitude of each power division port 405 of each the second power splitter 106 is identical.Each adjacent power of each the second power splitter 106 distributes the distribution power of port 405 to have identical phase difference, makes height pattern have a top rade, the span of top rade be 0 degree to 40 degree, in the present embodiment, top rade is 6 degree.
The structure of the first butler matrix feeding network 107 and the second butler matrix feeding network 108 is identical.When the columns of collinear array equals 8, each butler matrix feeding network is comprised of 1 Ge Ba road butler matrix 602, as shown in Figure 7.Isolation mutually between each input port of eight road butler matrixs 602, each input port of eight road butler matrixs 602 is as the input port of butler matrix feeding network, and each output port of eight road butler matrixs 602 is as the output port of butler matrix feeding network.
When the columns of collinear array is greater than 8, each butler matrix feeding network is comprised of 1 Ge Ba road butler matrix 602 and 1 power divider network 601, as shown in Figure 8.Isolation mutually between the input port of eight road butler matrixs 602, the output port of eight road butler matrixs 602 connects the input port of power divider network 601, and the quantity of the output port of power divider network 601 is identical with the columns of collinear array.
The particular circuit configurations of Tu9Shi eight road butler matrixs 602.In Fig. 9,701 represent blender, and 702 represent phase shifter.
To sum up, whole electrical connection of the present invention is as follows:
The first butler matrix feeding network 107 is connected with signal input cable with each input port of the second butler matrix feeding network 108, and each output port of the first butler matrix feeding network 107 is electrically connected with the synthetic port 402 of power of each the first power splitter 105 respectively; Each output port of the second butler matrix feeding network 108 is electrically connected with the synthetic port 404 of power of each the second power splitter 106 respectively.Each power division port 403 of each the first power splitter 105 respectively with same row collinear array 104 in+antenna elements 202 of 45 degree polarization modes are electrically connected; Each power division port 405 of each the second power splitter 106 respectively with same row collinear array 104 in the antenna elements 201 of-45 degree polarization modes be electrically connected.
During each input port feed of butler matrix feeding network, the signal phase of output port is different linear change.Therefore, during each input port feed of butler matrix feeding network, the radiation beam of antenna horizontal direction is pointed to different, the wave beam that wherein input port 1 generation level+10 degree points to, the wave beam that input port 2 generation level+60 degree point to, the wave beam that input port 3 generation level-40 degree point to, the wave beam that input port 4 generation level+20 degree point to, the wave beam that input port 5 generation level-20 degree point to, the wave beam that input port 6 generation level+40 degree point to, the wave beam that input port 7 generation level-60 degree point to, the wave beam that input port 8 generation level-10 degree point to.
When 8 ports of the first butler matrix feeding network 107 are simultaneously during feed, antenna generation level is pointed to 8 wave beams of ± 10 degree, ± 20 degree, ± 40 degree, ± 60 degree, and these 8 wave beams 6 degree that have a down dip in the vertical direction; When 8 ports of the second butler matrix feeding network 108 are simultaneously during feed, antenna generation level is pointed to 8 wave beams of ± 10 degree, ± 20 degree, ± 40 degree, ± 60 degree, and these 8 wave beams updip 6 degree in the vertical direction.Therefore, when 16 ports of these two butler matrix feeding networks are simultaneously during feed, antenna can produce 8 horizontal directivity patterns sensing ± 10 degree, ± 20 degree, ± 40 degree, ± 60 degree and height pattern and have the wave beam that 6 degree have a down dip, antenna can produce 8 horizontal directivity patterns and point to the wave beam that ± 10 degree, ± 20 degree, ± 40 degree, ± 60 degree and height pattern have 6 degree updips simultaneously, and antenna can produce 16 wave beams.
Antenna structure of the present invention can form the wave beam of 8 fixed directional in the horizontal direction, forms in vertical direction the wave beam of 2 fixed directional, and the interference between 8 wave beams of horizontal direction is little, and the interference between 2 wave beams of vertical direction is little.16 beam antennas that technical scheme according to the present invention is made, stable performance, is easy to install, and can effectively reduce costs, and meets consumers' demand well.
The above is the preferred embodiments of the present invention, and enforcement of the present invention and claimed scope are not limited to the scope of above-described embodiment.Within the spirit and principles in the present invention all, institute changes, is equal to replacement, improvement etc., within being all included in protection scope of the present invention.The sensing and the beamwidth that it is emphasized that especially wave beam of the present invention can adjust according to different demands; by adjusting the columns of this programme cathetus antenna array, the distance between adjacent two row collinear arrays, the radiating element number of every row collinear array, the distance between adjacent radiation unit, distribution power magnitude and the phase place of power splitter power division port, thereby regulate the change of beam position and width also within protection range of the present invention.In addition, by adjusting the change of quantity that the quantity of feed port changes horizontal beam also within protection range of the present invention.

Claims (6)

1. single polarization 16 beam antennas for mobile communication base station, it is characterized in that: comprise the collinear array that metal floor, at least 8 row are parallel to each other, at least 8 the first power splitters, at least 8 the second power splitters, the first butler matrix feeding network, the second butler matrix feeding network, the quantity of the first power splitter equates with the columns of collinear array, the quantity of the second power splitter equates with the columns of collinear array, collinear array is arranged on the upper surface of metal floor, and the first power splitter and the second power splitter are arranged on the lower surface of metal floor;
Every row collinear array is comprised of at least 2 identical antenna radiation units, each antenna radiation unit is comprised of the antenna elements of 1+45 degree antenna elements of polarization modes and 1-45 degree polarization mode, and+antenna elements of 45 degree polarization modes and the antenna element square crossings of-45 degree polarization modes combine;
Each input port of the first butler matrix feeding network is connected with signal input cable, and each output port of the first butler matrix feeding network is electrically connected with the synthetic port of power of each the first power splitter respectively; Each input port of the second butler matrix feeding network is connected with signal input cable, and each output port of the second butler matrix feeding network is electrically connected with the synthetic port of power of each the second power splitter respectively;
The quantity of the power division port of each the first power splitter with in every row collinear array+numbers of antenna element of 45 degree polarization modes equate, the quantity of the power division port of each the second power splitter equates with the number that-45 in every row collinear array spent the antenna element of polarization mode;
Each power division port of each the first power splitter respectively with same row collinear array in+antenna elements of 45 degree polarization modes are electrically connected; Each power division port of each the second power splitter respectively with same row collinear array in the antenna elements of-45 degree polarization modes be electrically connected;
The distribution power magnitude of each power division port of each the first power splitter is identical, each adjacent power of each the first power splitter distributes the distribution power of port to have identical phase difference, make height pattern have an angle of declination, the span of angle of declination is that 0 degree is to 40 degree;
The distribution power magnitude of each power division port of each the second power splitter is identical, each adjacent power of each the second power splitter distributes the distribution power of port to have identical phase difference, make height pattern have a top rade, the span of top rade is that 0 degree is to 40 degree;
The structure of the first butler matrix feeding network and the second butler matrix feeding network is identical, and each butler matrix feeding network comprises 1 Ge Ba road butler matrix;
Eight road butler matrixs are comprised of 12 blenders and 8 phase shifters.
2. single polarization 16 beam antennas for mobile communication base station according to claim 1, it is characterized in that: the distance of adjacent two row collinear arrays is 0.3 λ-1.5 λ, in every row collinear array, the distance of adjacent antenna radiating element is 0.3 λ-1.5 λ.
3. single polarization 16 beam antennas for mobile communication base station according to claim 1, it is characterized in that: each collinear array is parallel to each other, and align mutually in the two ends of all collinear arrays.
4. single polarization 16 beam antennas for mobile communication base station according to claim 1, is characterized in that: each collinear array is parallel to each other, and the two ends of all odd columns align mutually, align mutually in the two ends of all even columns.
5. single polarization 16 beam antennas for mobile communication base station according to claim 1, it is characterized in that: the structure of the first butler matrix feeding network and the second butler matrix feeding network is identical, when the columns of collinear array equals 8, each butler matrix feeding network is comprised of 1 Ge Ba road butler matrix, isolation mutually between each input port of eight road butler matrixs, each input port of eight road butler matrixs is as the input port of butler matrix feeding network, each output port of eight road butler matrixs is as the output port of butler matrix feeding network.
6. single polarization 16 beam antennas for mobile communication base station according to claim 1, it is characterized in that: the structure of the first butler matrix feeding network and the second butler matrix feeding network is identical, when the columns of collinear array is greater than 8, each butler matrix feeding network is comprised of 1 Ge Ba road butler matrix and 1 power divider network, isolation mutually between each input port of eight road butler matrixs, each output port of eight road butler matrixs connects the input port of power divider network, the quantity of the output port of power divider network equates with the columns of collinear array, each input port of eight road butler matrixs is as the input port of butler matrix feeding network, each output port of power divider network is as the output port of butler matrix feeding network.
CN201210045538.5A 2011-11-10 2012-02-27 Unipolar sixteen-beam antenna for mobile communication base station Active CN102544759B (en)

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CN201110352271.X 2011-11-10
CN201110352271 2011-11-10
CN201210045538.5A CN102544759B (en) 2011-11-10 2012-02-27 Unipolar sixteen-beam antenna for mobile communication base station

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CN102544759B true CN102544759B (en) 2014-07-23

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Application Number Title Priority Date Filing Date
CN201210045538.5A Active CN102544759B (en) 2011-11-10 2012-02-27 Unipolar sixteen-beam antenna for mobile communication base station
CN 201220065377 Expired - Fee Related CN202474225U (en) 2011-11-10 2012-02-27 Single-polarization twenty-two-beam antenna for mobile communication base station
CN201210045479.1A Active CN102570053B (en) 2011-11-10 2012-02-27 Monopolar 22-beam antenna used in mobile communication base station
CN 201220065380 Expired - Fee Related CN202474222U (en) 2011-11-10 2012-02-27 Single-polarization eight-beam antenna for mobile communication base station
CN 201220064787 Withdrawn - After Issue CN202474221U (en) 2011-11-10 2012-02-27 Unipolarity six-beam antenna for mobile communication base station
CN201210045536.6A Active CN102544758B (en) 2011-11-10 2012-02-27 Unipolar ten-beam antenna for mobile communication base station
CN 201220065376 Expired - Fee Related CN202474224U (en) 2011-11-10 2012-02-27 Unipolar ten-beam antenna used for mobile communication base station
CN201210045537.0A Active CN102570054B (en) 2011-11-10 2012-02-27 Monopolar 6-beam antenna used in mobile communication base station
CN201210045521.XA Active CN102544757B (en) 2011-11-10 2012-02-27 Single-polarization eight-beam antenna for mobile communication base station
CN 201220065382 Expired - Fee Related CN202474226U (en) 2011-11-10 2012-02-27 Unipolarity sixteen-beam antenna for mobile communication base station
CN201210081016.0A Expired - Fee Related CN102570057B (en) 2011-11-09 2012-03-26 A kind of dual polarization five beam antenna for mobile communication base station
CN 201220115422 Expired - Fee Related CN202474228U (en) 2011-11-09 2012-03-26 Dual-polarization five-beam antenna for mobile communication base station

Family Applications After (11)

Application Number Title Priority Date Filing Date
CN 201220065377 Expired - Fee Related CN202474225U (en) 2011-11-10 2012-02-27 Single-polarization twenty-two-beam antenna for mobile communication base station
CN201210045479.1A Active CN102570053B (en) 2011-11-10 2012-02-27 Monopolar 22-beam antenna used in mobile communication base station
CN 201220065380 Expired - Fee Related CN202474222U (en) 2011-11-10 2012-02-27 Single-polarization eight-beam antenna for mobile communication base station
CN 201220064787 Withdrawn - After Issue CN202474221U (en) 2011-11-10 2012-02-27 Unipolarity six-beam antenna for mobile communication base station
CN201210045536.6A Active CN102544758B (en) 2011-11-10 2012-02-27 Unipolar ten-beam antenna for mobile communication base station
CN 201220065376 Expired - Fee Related CN202474224U (en) 2011-11-10 2012-02-27 Unipolar ten-beam antenna used for mobile communication base station
CN201210045537.0A Active CN102570054B (en) 2011-11-10 2012-02-27 Monopolar 6-beam antenna used in mobile communication base station
CN201210045521.XA Active CN102544757B (en) 2011-11-10 2012-02-27 Single-polarization eight-beam antenna for mobile communication base station
CN 201220065382 Expired - Fee Related CN202474226U (en) 2011-11-10 2012-02-27 Unipolarity sixteen-beam antenna for mobile communication base station
CN201210081016.0A Expired - Fee Related CN102570057B (en) 2011-11-09 2012-03-26 A kind of dual polarization five beam antenna for mobile communication base station
CN 201220115422 Expired - Fee Related CN202474228U (en) 2011-11-09 2012-03-26 Dual-polarization five-beam antenna for mobile communication base station

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WO (1) WO2013067790A1 (en)

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WO2013143445A1 (en) * 2012-03-26 2013-10-03 广东博纬通信科技有限公司 Dual-polarization five-beam antenna for mobile communication base station
CN104143692B (en) * 2013-05-10 2016-10-26 中国电信股份有限公司 Multi-antenna array and base station
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