CN211126047U - Dual-beam base station antenna - Google Patents
Dual-beam base station antenna Download PDFInfo
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- CN211126047U CN211126047U CN201922452932.0U CN201922452932U CN211126047U CN 211126047 U CN211126047 U CN 211126047U CN 201922452932 U CN201922452932 U CN 201922452932U CN 211126047 U CN211126047 U CN 211126047U
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Abstract
The utility model discloses a dual-beam base station antenna has the oscillator array of constituteing by the dual polarized oscillator who arranges into a plurality of rows and a plurality of rows. The utility model discloses dual-beam base station antenna realizes radiating first wave beam and second wave beam signal through each dual polarization oscillator sharing of corresponding row, consequently can reduce the interference between the wave beam, improve the uniformity of wave beam bandwidth.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a dual-beam base station antenna.
Background
Currently, 4G (fourth generation mobile communication system) is in large-scale commercial use, and research on 5G is also being actively conducted. The contradiction between the increasing number of mobile communication users and traffic and the shortage of base station site resources is always kept throughout the whole process of long-term evolution of the mobile communication system.
Due to the advantages of dual-beam base station antennas in terms of system capacity and volume, dual-beam base station antennas are becoming more and more widely used. However, the interference between different beams of the existing dual-beam base station antenna is large, and the consistency of different beam bandwidths is poor, so how to reduce the interference between the beams and improve the consistency of the beam bandwidths becomes a technical problem in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dual-beam base station antenna aims at reducing the interference between the wave beam, improves the uniformity of wave beam bandwidth.
In order to realize the utility model discloses a purpose, the utility model provides a dual-beam base station antenna, include:
a reflective plate;
the oscillator array is provided with dual-polarized oscillators which are arranged into a plurality of rows and a plurality of columns, and the dual-polarized oscillators are fixed on the reflecting plate;
the first polarization feed network is provided with a first beam phase shifter unit for shifting the phase of a signal in the first polarization direction of a first beam, a second beam phase shifter unit for shifting the phase of a signal in the first polarization direction of a second beam and a plurality of first polarization dual-beam networks; the first polarization dual-beam networks are respectively connected with the corresponding rows of dual-polarized oscillators, each first polarization dual-beam network is provided with a 90-degree electric bridge, a power divider and a row of phase compensation cables with the same quantity as the dual-polarized oscillators, the 90-degree electric bridge of the first polarization feed network is connected with a first beam phase shifter unit and a second beam phase shifter unit of the first polarization feed network and is used for carrying out phase adjustment on signals in a first polarization direction input by the first beam phase shifter unit and the second beam phase shifter unit, the power divider of the first polarization feed network is connected with the 90-degree electric bridge of the first polarization feed network, one end of each phase compensation cable of the first polarization feed network is connected with the power divider of the first polarization feed network, and the other end of each phase compensation cable of the first polarization feed network is respectively connected with the corresponding rows of dual-polarized oscillators in sequence, the 90-degree electric bridge of the first polarization feed network and each phase compensation cable of the first polarization feed network are used for leading the first polarization square signals output by the first beam phase shifter unit by 90 degrees in sequence and inputting the first polarization square signals into each dual-polarized oscillator of the corresponding row, and lagging the first polarization square signals output by the second beam phase shifter unit by 90 degrees in sequence and inputting the first polarization square signals into each dual-polarized oscillator of the corresponding row; and
a second polarization feed network having a first beam phase shifter element for shifting a phase of a signal in a second polarization direction of the first beam, a second beam phase shifter element for shifting a phase of a signal in a second polarization direction of the second beam, and a plurality of second polarization dual beam networks; a plurality of second polarization dual-beam networks are respectively connected with the corresponding rows of dual-polarized oscillators, each second polarization dual-beam network is provided with a 90-degree electric bridge, a power divider and a phase compensation cable with the same quantity as a row of dual-polarized oscillators, the 90-degree electric bridge of the second polarization feed network is connected with a first beam phase shifter unit of the second polarization feed network and a second beam phase shifter unit of the second polarization feed network and is used for carrying out phase adjustment on signals in a second polarization direction input by the first beam phase shifter unit and the second beam phase shifter unit, the power divider of the second polarization feed network is connected with the 90-degree electric bridge of the second polarization feed network, one end of each phase compensation cable of the second polarization feed network is connected with the power divider of the second polarization feed network, the other end of each phase compensation cable of the second polarization feed network is respectively connected with each dual-polarized oscillator of the corresponding row in sequence, the 90-degree electric bridge of the second polarization feed network and each phase compensation cable of the second polarization feed network are used for leading the signal of the second polarization square output by the first beam phase shifter unit of the second polarization feed network by 90 degrees in sequence and inputting the signal of the second polarization square output by the second beam phase shifter unit of the second polarization feed network into each dual-polarized oscillator of the corresponding row, and lagging the signal of the second polarization square output by the second beam phase shifter unit of the second polarization feed network by 90 degrees in sequence and inputting the signal of the second polarization square into each dual-polarized oscillator of the corresponding row.
As a further improvement of the above dual-beam base station antenna, the element array has four columns and seven rows of dual-polarized elements.
As a further improvement of the dual-beam base station antenna, the first polarization dual-beam networks have five, two of the first polarization dual-beam networks are respectively used for being connected with two rows of dual-polarized oscillators above and two rows of dual-polarized oscillators below, and three of the first polarization dual-beam networks are respectively connected with three middle rows of dual-polarized oscillators; the number of the second polarization dual-beam networks is five, wherein two second polarization dual-beam networks are respectively used for being connected with two rows of dual-polarized oscillators above and two rows of dual-polarized oscillators below, and three second polarization dual-beam networks are respectively connected with three middle rows of dual-polarized oscillators.
As a further improvement of the above dual-beam base station antenna, the first polarization dual-beam network has two power dividers and four phase compensation cables, and the two power dividers of the first polarization dual-beam network are connected to the 90-degree bridge of the first polarization dual-beam network, and are respectively configured to divide signals output by the 90-degree bridge into signals with power of 1: 4, two of the four phase compensation cables of the first polarization dual-beam network are connected with a power divider of the first polarization dual-beam network; the second polarization dual-beam network is provided with two power dividers and four phase compensation cables, the two power dividers of the second polarization dual-beam network are connected with a 90-degree electric bridge of the second polarization dual-beam network, and the two power dividers are respectively used for dividing signals output by the 90-degree electric bridge into signals with power of 1: 4, two of the four phase compensation cables of the second polarization dual-beam network are connected with a power divider of the second polarization dual-beam network.
Because the utility model discloses dual-beam base station antenna realizes radiating first wave beam and second wave beam signal through each dual polarization oscillator sharing of corresponding row, consequently can reduce the interference between the wave beam, improve the uniformity of wave beam bandwidth.
Drawings
Fig. 1 is a front view of the dual-beam base station antenna of the present invention;
fig. 2 is a circuit block diagram of a first polarization feed network of the dual beam base station antenna of the present invention;
fig. 3 is a circuit block diagram of a second polarization feed network of the dual beam base station antenna of the present invention;
fig. 4 is a circuit block diagram of a first polarization dual beam network of the dual beam base station antenna of the present invention;
fig. 5 is a circuit block diagram of a second polarization dual beam network of the dual beam base station antenna of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
Referring to fig. 1 and 2, a preferred embodiment of the dual-beam base station antenna of the present invention is disclosed. In the present embodiment, the dual-beam base station antenna includes a reflection plate 10, a plurality of first element rows 20, and two second element rows 30. A reflection plate 10, a vibrator array 20, a first polarization feed network 30 and a second polarization feed network 40. The reflection plate 10 is made of a metal material for reflecting a signal.
The vibrator array 20 has dual-polarized vibrators 210 arranged in a plurality of rows and a plurality of columns, and the dual-polarized vibrators 210 are fixed to the reflection plate 10 for radiating signals. In the present embodiment, the element array 20 has four columns and seven rows of dual-polarized elements 210, so that the element array 20 constitutes an array structure of 4 × 7.
Referring to fig. 2 and 4, the first polarization feed network 30 is used for feeding signals of a first polarization direction to the corresponding dual-polarized elements 210 of the element array 20, and has a first beam phase shifter unit 310, a second beam phase shifter unit 320 and a plurality of first polarization dual-beam networks 330.
The first beam phase shifter unit 310 is used to shift the phase of the signal of the first polarization direction of the first beam, and the second beam phase shifter unit 320 is used to shift the phase of the signal of the first polarization direction of the second beam, so as to shift the phase of the signal of the first polarization direction of the dual-polarized elements 210 of the corresponding row of the input element array 20, thereby the down tilt of the synthesized beam of the dual-polarized elements 210 of each row of the dual-beam base station antenna can be adjusted by the first beam phase shifter unit 310 and the second beam phase shifter unit 320.
In this embodiment, the first polarization dual-beam network 330 has five, two of the first polarization dual-beam networks 330 are respectively used for connecting with the upper two rows of dual-polarized oscillators 210 and the lower two rows of dual-polarized oscillators 210 of the array structure of 4X7 composed of four rows of oscillator arrays 20, and three of the first polarization dual-beam networks 330 are respectively connected with the middle three rows of dual-polarized oscillators 210, so that the first polarization dual-beam networks 330 feed signals of the first polarization direction to the corresponding rows of dual-polarized oscillators 210.
The first polarization dual beam network 330 has a 90-degree bridge 331, two power splitters 332, and four phase compensation cables 333. The 90-degree bridge 331 is connected to the first beam phase shifter unit 310 and the second beam phase shifter unit 320, and is configured to perform phase adjustment on signals input by the first beam phase shifter unit 310 and the second beam phase shifter unit 320. The two power dividers 332 are connected to the 90-degree bridge 331, and are configured to divide the signal output by the 90-degree bridge 331 into signals with power of 1: 4. Two of the four phase compensation cables 333 are connected to a power divider 332 for performing phase compensation on the signal output from the power divider 332. Four phase compensation cables 333 are also connected to the respective rows of dual polarized oscillators 210 of the oscillator array 20.
Referring to fig. 3 and 5, the second polarization feed network 40 is used for feeding signals of a second polarization direction to the corresponding dual-polarized elements 210 of the element array 20, and has a first beam phase shifter element 410, a second beam phase shifter element 420 and a plurality of second polarization dual-beam networks 430.
The first beam phase shifter element 410 is used to shift the phase of the signal in the second polarization direction of the first beam, and the second beam phase shifter element 420 is used to shift the phase of the signal in the second polarization direction of the second beam signal, so as to shift the phase of the signal in the second polarization direction of the dual-polarized elements 210 of each row of the input element array 20, so that the down tilt of the synthesized beam of the dual-polarized elements 210 of each row of the dual-beam base station antenna can be adjusted by the first beam phase shifter element 410 and the second beam phase shifter element 420.
In the present embodiment, the second polarization dual-beam network 430 has five, two of the second polarization dual-beam networks 430 are respectively used for connecting the upper two rows of dual-polarized oscillators 210 and the lower two rows of dual-polarized oscillators 210 of the array structure of the array of four rows of oscillators 20 forming 4X7, three of the second polarization dual-beam networks 430 are respectively connected with the middle three rows of dual-polarized oscillators 210, so that the second polarization dual-beam networks 430 feed signals of the second polarization direction to the corresponding rows of dual-polarized oscillators 210.
The second polarization dual beam network 430 has a 90 degree bridge 431, two power splitters 432, and four phase compensation cables 433. The 90-degree bridge 431 is connected to the first beam phase shifter unit 410 and the second beam phase shifter unit 420, and is used for performing phase adjustment on signals input by the first beam phase shifter unit 410 and the second beam phase shifter unit 420. The two power dividers 432 are connected to the 90-degree bridge 431, and are configured to divide the signal with the second polarization direction output by the 90-degree bridge 431 into signals with power of 1: 4. Two of the four phase compensation cables 433 are connected to a power divider 432, and are used for performing phase compensation on signals output by the power divider 432. The four phase compensation cables 433 are also connected to the dual-polarized oscillators 210 of the corresponding row of the oscillator array 20, respectively.
The utility model discloses dual polarization dual beam network 330 of dual beam base station antenna makes the dual polarization oscillator 210 of the corresponding row of signal input of the first direction of polarization of first wave beam lead 90 degrees according to the preface through 90 degrees electric bridge 331 and phase compensation cable 333, the dual polarization oscillator 210 of the corresponding row of signal input of the first direction of polarization of messenger second wave beam lags 90 degrees according to the preface, thereby the dual polarization oscillator 210 of the corresponding row of signal input of the first direction of polarization of messenger first wave beam from left to right phase place be phi degree in proper order, phi +90 degree, phi +180 degree, phi +270 degree, the dual polarization oscillator 210 of the corresponding row of input of the first direction of polarization of messenger second wave beam signal from left to right phase place be phi degree in proper order, phi-90 degree, phi-180 degree, phi-270 degree. The utility model discloses dual polarization network 430 of dual beam base station antenna makes the dual polarization oscillator 210 of the corresponding row of signal input of the second polarization direction of first wave beam lead 90 degrees according to the preface through 90 degrees electric bridge 431 and phase compensation cable 433, the dual polarization oscillator 210 of the corresponding row of signal input of the second polarization direction of messenger second wave beam lags 90 degrees according to the preface, thereby the dual polarization oscillator 210 of the corresponding row of signal input of the second polarization direction of messenger first wave beam from left to right phase place be phi degree in proper order, phi +90 degree, phi +180 degree, phi +270 degree, the dual polarization oscillator 210 of the corresponding row of input of the second polarization direction of messenger second wave beam signal from left to right phase place be phi degree in proper order, phi-90 degree, phi-180 degree, phi-270 degree. Therefore, the utility model discloses dual-beam base station antenna's dipole array 20's four rows of dual polarized oscillators 210 synthesizes first wave beam and second wave beam signal.
Because the utility model discloses dual-beam base station antenna realizes radiating first wave beam and second wave beam signal through each dual polarization oscillator 210 sharing of corresponding row, consequently can reduce the interference between the wave beam, improve the uniformity of wave beam bandwidth.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. A dual beam base station antenna, comprising:
a reflective plate;
the oscillator array is provided with dual-polarized oscillators which are arranged into a plurality of rows and a plurality of columns, and the dual-polarized oscillators are fixed on the reflecting plate;
the first polarization feed network is provided with a first beam phase shifter unit for shifting the phase of a signal in the first polarization direction of a first beam, a second beam phase shifter unit for shifting the phase of a signal in the first polarization direction of a second beam and a plurality of first polarization dual-beam networks; the first polarization dual-beam networks are respectively connected with the corresponding rows of dual-polarized oscillators, each first polarization dual-beam network is provided with a 90-degree electric bridge, a power divider and a row of phase compensation cables with the same quantity as the dual-polarized oscillators, the 90-degree electric bridge of the first polarization feed network is connected with a first beam phase shifter unit and a second beam phase shifter unit of the first polarization feed network and is used for carrying out phase adjustment on signals in a first polarization direction input by the first beam phase shifter unit and the second beam phase shifter unit, the power divider of the first polarization feed network is connected with the 90-degree electric bridge of the first polarization feed network, one end of each phase compensation cable of the first polarization feed network is connected with the power divider of the first polarization feed network, and the other end of each phase compensation cable of the first polarization feed network is respectively connected with the corresponding rows of dual-polarized oscillators in sequence, the 90-degree electric bridge of the first polarization feed network and each phase compensation cable of the first polarization feed network are used for leading the first polarization square signals output by the first beam phase shifter unit by 90 degrees in sequence and inputting the first polarization square signals into each dual-polarized oscillator of the corresponding row, and lagging the first polarization square signals output by the second beam phase shifter unit by 90 degrees in sequence and inputting the first polarization square signals into each dual-polarized oscillator of the corresponding row; and
a second polarization feed network having a first beam phase shifter element for shifting a phase of a signal in a second polarization direction of the first beam, a second beam phase shifter element for shifting a phase of a signal in a second polarization direction of the second beam, and a plurality of second polarization dual beam networks; a plurality of second polarization dual-beam networks are respectively connected with the corresponding rows of dual-polarized oscillators, each second polarization dual-beam network is provided with a 90-degree electric bridge, a power divider and a phase compensation cable with the same quantity as a row of dual-polarized oscillators, the 90-degree electric bridge of the second polarization feed network is connected with a first beam phase shifter unit of the second polarization feed network and a second beam phase shifter unit of the second polarization feed network and is used for carrying out phase adjustment on signals in a second polarization direction input by the first beam phase shifter unit and the second beam phase shifter unit, the power divider of the second polarization feed network is connected with the 90-degree electric bridge of the second polarization feed network, one end of each phase compensation cable of the second polarization feed network is connected with the power divider of the second polarization feed network, the other end of each phase compensation cable of the second polarization feed network is respectively connected with each dual-polarized oscillator of the corresponding row in sequence, the 90-degree electric bridge of the second polarization feed network and each phase compensation cable of the second polarization feed network are used for leading the signal of the second polarization square output by the first beam phase shifter unit of the second polarization feed network by 90 degrees in sequence and inputting the signal of the second polarization square output by the second beam phase shifter unit of the second polarization feed network into each dual-polarized oscillator of the corresponding row, and lagging the signal of the second polarization square output by the second beam phase shifter unit of the second polarization feed network by 90 degrees in sequence and inputting the signal of the second polarization square into each dual-polarized oscillator of the corresponding row.
2. The dual-beam base station antenna of claim 1, wherein the array of elements has four columns and seven rows of dual polarized elements.
3. The dual-beam base station antenna of claim 2, wherein said first polarized dual-beam network has five, two of which are for connection to the upper two rows of dual-polarized elements and two of which are for connection to the lower two rows of dual-polarized elements, respectively, and three of which are for connection to the middle three rows of dual-polarized elements, respectively; the number of the second polarization dual-beam networks is five, wherein two second polarization dual-beam networks are respectively used for being connected with two rows of dual-polarized oscillators above and two rows of dual-polarized oscillators below, and three second polarization dual-beam networks are respectively connected with three middle rows of dual-polarized oscillators.
4. The dual-beam base station antenna of claim 3, wherein the first polarization dual-beam network has two power splitters and four phase compensation cables, the two power splitters of the first polarization dual-beam network are connected to the 90-degree bridge of the first polarization dual-beam network for respectively splitting the signal output by the 90-degree bridge into signals with power of 1: 4, two of the four phase compensation cables of the first polarization dual-beam network are connected with a power divider of the first polarization dual-beam network; the second polarization dual-beam network is provided with two power dividers and four phase compensation cables, the two power dividers of the second polarization dual-beam network are connected with a 90-degree electric bridge of the second polarization dual-beam network, and the two power dividers are respectively used for dividing signals output by the 90-degree electric bridge into signals with power of 1: 4, two of the four phase compensation cables of the second polarization dual-beam network are connected with a power divider of the second polarization dual-beam network.
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| CN201922452932.0U CN211126047U (en) | 2019-12-30 | 2019-12-30 | Dual-beam base station antenna |
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| CN201922452932.0U CN211126047U (en) | 2019-12-30 | 2019-12-30 | Dual-beam base station antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023016116A1 (en) * | 2021-08-12 | 2023-02-16 | 华为技术有限公司 | Signal processing method and related apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023016116A1 (en) * | 2021-08-12 | 2023-02-16 | 华为技术有限公司 | Signal processing method and related apparatus |
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