WO2021103032A1 - 一种天线系统及基站 - Google Patents

一种天线系统及基站 Download PDF

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Publication number
WO2021103032A1
WO2021103032A1 PCT/CN2019/122283 CN2019122283W WO2021103032A1 WO 2021103032 A1 WO2021103032 A1 WO 2021103032A1 CN 2019122283 W CN2019122283 W CN 2019122283W WO 2021103032 A1 WO2021103032 A1 WO 2021103032A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna array
antenna
radome
array
reflector
Prior art date
Application number
PCT/CN2019/122283
Other languages
English (en)
French (fr)
Inventor
肖伟宏
李建平
蒲涛
张润孝
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/122283 priority Critical patent/WO2021103032A1/zh
Priority to EP19954138.4A priority patent/EP4047749A4/en
Priority to CN201980102146.8A priority patent/CN114730990A/zh
Publication of WO2021103032A1 publication Critical patent/WO2021103032A1/zh
Priority to US17/827,727 priority patent/US20220285858A1/en

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    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • 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
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration

Definitions

  • This application relates to the field of communication technology, and in particular to an antenna system and a base station.
  • the requirements for the communication frequency band of base stations are getting higher and higher, and operators expect base stations to have more communication frequency bands.
  • the space resources of the operator's site are limited. Therefore, when setting up the base station, the multi-band antenna of the base station adopts nesting or stacking schemes to increase the working frequency band of the base station.
  • the prior art when antennas of different frequency bands are placed together in a nested or stacked manner, once the base station is built, it is difficult to add antennas of other frequency bands on the base station.
  • the present application provides an antenna system and a base station, which are used to improve the communication performance of the base station.
  • an antenna system in a first aspect, includes at least two antenna arrays working in different frequency bands: a first antenna array and a second antenna array; wherein, the first antenna array works in a first working frequency band, and the first antenna array works in a first working frequency band.
  • the two antenna arrays work in the second frequency band.
  • the first antenna in the example is a 5G antenna
  • the second antenna is a 2G, 3G, and 4G antenna.
  • the antenna system also includes a first reflector, the first antenna array and the second antenna array are stacked on the first reflector, and the first antenna array and the second antenna array share a first reflector.
  • the second antenna array can be an existing antenna on the base station in the prior art, and the first antenna array is an additional 5G antenna.
  • the first antenna array and the first reflector form a module, which is placed in the first antenna array.
  • the side of the two antenna arrays away from the radiation area, and the second antenna array and the first antenna array share the first reflector.
  • it further includes a second feeder network for feeding a second antenna array, and the second feeder network is arranged between the second antenna array and the first antenna array .
  • it further includes a radome; the first antenna array, the second antenna array, and the second feeder network are arranged in the radome.
  • the radome is provided to protect the first antenna array and the second antenna array, which improves the safety of the two antenna arrays.
  • the radome includes a first radome and a second radome, the first antenna array and the first reflector are arranged on the first radome; the second antenna The array and the second feeding network are arranged in the second radome. The first antenna array and the second antenna array are respectively protected by different radomes.
  • the first antenna array, the second feeding network, and the second antenna array are arranged in one radome.
  • the first antenna array and the second antenna array are integrally protected by a radome.
  • the second antenna array includes a first part of a second antenna and a second part of a second antenna; the first part of the second antenna and the first part An antenna array is laminated and arranged on the first reflector; the second antenna of the second part is arranged on the second reflector.
  • the first reflector and the second reflector are arranged in a second direction, the second direction is perpendicular to the first direction, and the first direction is the stack of the first antenna array and the second antenna array. direction.
  • the number of second antennas of the second antenna array is increased, and the second reflector is prevented from affecting the radiation effect of the first antenna array.
  • the first antenna array, the second antenna array, and the third antenna array are antenna arrays working in different frequency bands; wherein, the first antenna array The three-antenna array and the second antenna of the second part are stacked on the second reflector. Increase the communication coverage frequency band of the antenna system.
  • the radome includes a first radome and a second radome; the first antenna array and the first reflector are arranged on the first radome Inside; the second antenna array, the second feeder network, the third antenna array and the second reflector are arranged in the second radome.
  • the first antenna array, the second antenna array and the third antenna array are respectively protected by the first antenna cover and the second antenna cover.
  • the radome includes a first radome and a second radome; the second antenna of the first part, the second feeder network, the first antenna The antenna array and the first reflector are arranged in the first radome; the second antenna of the second part, the third antenna array and the second reflector are arranged in the second radome.
  • the first antenna array, the second antenna array and the third antenna array are respectively protected by the first antenna cover and the second antenna cover.
  • it further includes a phase shifter connected to the second feed network, the phase shifter is arranged in the second radome, and is located in the first radome
  • the second antenna of the first part is connected to the phase shifter through a jumper wire. Signals are sent to the second antenna through the phase shifter, and the second antennas located in different radomes are connected through jumpers.
  • it further includes a fourth antenna array; the first antenna array, the second antenna array, the third antenna array, and the fourth antenna array are antennas working in different frequency bands Array; the fourth antenna array, the second antenna array, and the third antenna array are stacked on the second reflector.
  • the communication coverage frequency band of the antenna system is improved.
  • a base station in a second aspect, includes the antenna system described in any one of the above and a digital phase shifter connected to the antenna system. Through the antenna system, different modules can be added as needed to improve the communication performance of the existing base station, which reduces the cost of base station modification.
  • FIG. 1 is a structural block diagram of an antenna system provided by an embodiment of the application.
  • FIG. 2 is a structural block diagram of another antenna system provided by an embodiment of this application.
  • FIG. 3 is a structural block diagram of another antenna system provided by an embodiment of this application.
  • FIG. 4 is a structural block diagram of another antenna system provided by an embodiment of this application.
  • FIG. 5 is a structural block diagram of another antenna system provided by an embodiment of this application.
  • FIG. 6 is a structural block diagram of another antenna system provided by an embodiment of this application.
  • FIG. 7 is a structural block diagram of another antenna system provided by an embodiment of this application.
  • the antenna system provided by the example of the present application is applied to a base station.
  • the construction of base stations is an important part of the investment of mobile communication operators.
  • the construction of base stations is generally carried out around factors such as coverage, call quality, investment benefits, ease of construction, and ease of maintenance.
  • With the development of mobile communication network services in the direction of dataization and packetization the development trend of mobile communication base stations is bound to be broadband and large-coverage construction.
  • the embodiment of the present application provides an antenna system including at least two antenna arrays, and each antenna array includes a plurality of antennas arranged in an array.
  • the working frequency bands of any antenna array are different. For example, if the antenna system includes a first antenna array and a second antenna array, the first antenna array and the second antenna array work in two different working frequency bands; the antenna system includes the first antenna array and the second antenna array.
  • An antenna array, a second antenna array, and a third antenna array, the first antenna array, the second antenna array, and the third antenna array are all in different working frequency bands.
  • the antenna system shown in the accompanying drawings is only a specific implementation for the convenience of illustrating the example of the antenna system.
  • the antenna provided by the embodiment of the present application
  • the system can set different antenna arrays according to the layout shown in the figure according to the needs, not limited to the setting scheme shown in the figure.
  • FIG. 1 illustrates an antenna system provided by an embodiment of the present application.
  • the antenna system includes a first antenna array 20 and a second antenna array 10, and the first antenna array 20 and the second antenna array 10 are Antennas working in different working frequency bands, for example, the first antenna array 20 is a 5G antenna, and the second antenna array 10 is a 2G, 3G, or 4G antenna. Or the first antenna array 20 is a 2G, 3G or 4G antenna, and the second antenna array 10 is a 5G antenna.
  • the first antenna array 20 includes a plurality of first antennas 21 arranged in an array. In FIG. 1, only one column of the first antenna is illustrated, but it should be understood that the column of the first antenna 21 is not limited in the embodiment of the present application.
  • the number of first antennas 21 can be selectively set according to needs. For example, there are two, three, or four rows of first antennas 21 with different numbers.
  • the first antenna array 20 feeds the first antenna array 20 through the first feeder grid (not shown in the figure).
  • the second antenna array 10 includes a plurality of second antennas 11 arranged in an array. In FIG. 1, only one column of the second antennas 11 is illustrated, but the number of the second antennas 11 is not specifically limited in the embodiment of the present application. Multiple columns of second antennas 11 may be provided as needed, for example, two columns, three columns, four columns, and other columns of different numbers of second antennas 11 may be provided.
  • the second antenna array 10 is working, the second antenna array is fed through the second feed network 12, and the second feed network 12 is connected to a plurality of second antennas.
  • the antenna system further includes a first reflector 30, and the first antenna array 20 and the second antenna array 10 are stacked on the first reflector 30 along the first direction.
  • the direction indicated by the arrow is the first direction
  • the first direction is the direction perpendicular to the reflection surface of the first reflection plate 30.
  • the first antenna 21 of the first antenna array 20 is fixedly arranged on the reflecting surface of the first reflecting plate 30, and the first feeding network is arranged on the side of the first reflecting plate 30 away from the reflecting surface.
  • the second antenna 11 and the second feeder network 12 of the second antenna array 10 are arranged at a position away from the first reflector 30.
  • the second feeder network 12 is arranged on the second antenna array 10 and the first reflector 30. Between an antenna array 20.
  • the first antenna array 20 and the first reflector 30 are arranged as a whole, so it can be used as a module, and the second antenna array 10 is connected with the first antenna array 20 and the second antenna array 20.
  • a reflecting plate 30 is arranged separately.
  • an antenna array is provided on an existing base station. When the first antenna array 20 needs to be added, the reflector of the existing antenna array is removed, and the existing antenna array (such as a radome or support frame) is used to reinforce the antenna array.
  • the antenna in the antenna array is fixed, and then the module composed of the increased antenna array and the reflector is added to the side of the existing antenna array away from the first direction to form the structure shown in Figure 1; wherein, the first antenna array 20 is an existing antenna array, and the second antenna array 10 is an additional antenna array.
  • the added antenna array is directly arranged in front of the existing antenna array (the side to which the first direction points) to form the structure shown in Fig. 1; wherein, the existing antenna array may be the first antenna in Fig. 1 Array 20, the added antenna array may be the second antenna array 10.
  • the antenna system shown in FIG. 2 includes a first antenna cover 40a and a second antenna cover 50a in addition to the first antenna array and the second antenna array shown in FIG. 1.
  • the first radome 40a and the second radome 50a are arranged along the first direction, and the second antenna 11 and the second feeder network 12 of the second antenna array are both arranged in the second radome 50a.
  • the above-mentioned first antenna array and the first reflector 30 are arranged in the first radome 40a.
  • Fig. 2 also shows the first phase shifter 22 of the first antenna array.
  • the first phase shifter 22 is arranged in the first radome 40a, and the first phase shifter 22 is connected to a plurality of The first antenna 21 is connected and transmits signals to the first antenna 21.
  • the first antenna array and the first reflector 30 form a module through the first radome 40a.
  • the first radome 40a can be directly placed on the second radome 50a away from the first direction during assembly. side.
  • FIG. 3 is a modification of the antenna system shown in FIG.
  • the first antenna array and the second antenna array are the same as the first antenna array and the second antenna array in FIG. 2.
  • the difference is that only one first radome 40b is provided in FIG. 3, and the second antenna array, the second feeder network 12, the first antenna array, and the first reflector 30 are arranged in order along the first reverse direction, and they are all arranged in Inside the same radome (first radome 40b).
  • the antenna systems illustrated in Figures 2 and 3 can be selectively set according to actual conditions. Different antenna arrays can be set in different radomes or in the same radome. There is no specific limitation in the application examples.
  • Fig. 4 illustrates a specific implementation in which the antenna system includes three antenna arrays.
  • the same reference numerals in FIG. 4 can refer to the same reference numerals in FIG. 1.
  • the antenna system shown in FIG. 4 includes a first antenna array, a second antenna array, and a third antenna array.
  • the first antenna 21 of the first antenna array is arranged on the first reflector 30, and is connected to the first phase shifter 22 through the first feeding network.
  • the first antenna array, the first reflector 30 and the first phase shifter 22 are arranged in the first radome 40c.
  • the multiple second antennas 11 of the second antenna array are divided into two parts, namely the first part of the second antenna 11a and the second part of the second antenna 11b, wherein the first part of the second antenna 11a includes a plurality of second antennas.
  • the antenna 11a, the second antenna 11b of the second part includes a plurality of second antennas 11b.
  • the second antenna 11a of the first part and its corresponding second feeder network 12 are arranged on the second radome 50c.
  • the third antenna array includes a plurality of third antennas 61, and the third antenna array is fed through a third feeding network.
  • the second antenna 11b and the third antenna array of the second part are arranged on the second reflector 70, and the second antenna 11b, the third antenna array and the second reflector 70 of the second part are arranged along the first direction.
  • the second antenna 11 b of the second part, the third antenna array and the second reflector 70 are arranged in the third radome 90.
  • the antenna system shown in FIG. 4 also shows a second phase shifter 13 and a third phase shifter 62.
  • the second phase shifter 13 and the third phase shifter 62 are arranged in the third antenna along the first direction. Inside the hood 90.
  • the second phase shifter 13 is connected to the second phase shifter 13 through the second feeder network corresponding to the second antenna 11b of the second part, and the second feeder network 12 corresponding to the second antenna 11a of the first part passes through the second antenna
  • the jumper 100 between the cover 50c and the third radome 90 is connected to the second phase shifter 13.
  • the third antenna array is connected to the third phase shifter 62 through a third feed network.
  • the first radome 40c and the second radome 50c are arranged along the first direction, and the first radome 40c and the second radome 50c are arranged along the second direction with the third radome 90.
  • the second direction is a direction perpendicular to the first direction.
  • the first reflector 30 and the second reflector 70 are also arranged in the second direction, so that the second reflector 70 and the first antenna array are spatially misaligned, that is, the second reflector 70 It is located in the non-overlapping area of the multiple first antennas 21 to prevent the second reflector 70 from blocking the signal radiation to the first antenna 21 and reduce the influence of the second reflector 70 on the first antenna 21.
  • the radome provided by the embodiment of the application is not limited to the manner shown in FIG. 4, and when the first antenna array, the second antenna array, and the third antenna array are arranged in the manner shown in FIG.
  • the radome shown in 3 is used in Fig. 4 to form the antenna system shown in Fig. 5.
  • the first radome 40c and the second radome 50c in Fig. 4 can be combined into a first radome 40d, and another antenna
  • the cover is a second radome 50d, and the first radome 40d and the second radome 50d are arranged side by side along the second direction.
  • the second antenna 11a, the first antenna array and the first reflector 30 of the first part are arranged in the first radome; and the second antenna 11b of the second part, the second reflector 70 and the first antenna of the second antenna array
  • the two phase shifters 13 are arranged in the second radome.
  • FIG. 6 illustrates another specific implementation manner in which the antenna system includes three antenna arrays.
  • the same reference numerals in FIG. 6 can refer to the same reference numerals in FIG. 4.
  • the antenna system shown in FIG. 6 includes a first antenna array, a second antenna array, and a third antenna array.
  • the structure of the three antenna arrays is the same as the structure shown in FIG. 4, which will not be repeated here.
  • the antenna system shown in FIG. 6 includes two radomes, namely a first radome 40e and a second radome 50e.
  • the second radome 50e is an L-shaped cover with a gap in the upper right corner (taking the placement direction of the antenna system in Fig.
  • the first radome 40e is arranged on the second radome.
  • the notch position of the radome 50e Continuing to refer to FIG. 6, the plurality of first antennas 21, the first reflector 30 and the first phase shifter 22 are arranged in the first radome 40e along the first direction.
  • the second radome 50e is an L-shaped structure, and the first radome 40e is located at the notch position of the second radome 50e.
  • the second antenna 11a of the first part is located in the second radome 50e and is stacked with the first antenna 21 and the first reflector 30 along the first direction; the second antenna 11b of the second part, the third antenna array, and the second antenna
  • the reflector 70, the third phase shifter 62, and the second phase shifter 13 are stacked in the second radome 50e along the first direction.
  • Figure 7 illustrates another structure of the antenna system.
  • the numbers in Figure 7 can refer to the same numbers in Figure 6.
  • the difference between the antenna system shown in Figure 7 and the antenna system shown in Figure 6 is The antenna system shown in FIG. 7 adds a fourth antenna array, where the first antenna array, the second antenna array, the third antenna array, and the fourth antenna array are antenna arrays working in different frequency bands; for example, the first antenna array
  • the working frequency band of the antenna array is 5G
  • the working frequency band of the second antenna array is 4G
  • the working frequency band of the third antenna array is 3G
  • the working frequency band of the fourth antenna array is 2G.
  • the arrangement of the first antenna array, the second antenna array and the third antenna array is the same as that of FIG.
  • the fourth antenna array When the fourth antenna array is installed, the second antenna array and the third antenna array are stacked on the second reflector 70.
  • the fourth antenna array includes a plurality of fourth antennas 81, and the fourth phase shifter 82 feeds the fourth antenna array through the fourth feed network.
  • the fourth antenna array and the third antenna array are located on the same side of the second reflector 70, and the fourth antenna array is fixedly arranged on the second reflector 70, and the fourth phase shifter 82 and the fourth The antennas 81 are arranged on both sides of the second reflecting plate 70 respectively.
  • the antenna array included in the antenna system shown in FIGS. 4 to 7 is only an example, and the number of antenna arrays and specific combinations are not limited in the embodiment of the present application.
  • the antenna system provided by the embodiment of the present application may adopt the second antenna array and the third antenna array shown in FIG. 6 to be arranged in one radome, and the first antenna array to be arranged in another radome, or
  • the second antenna array may be separately arranged in a radome, while the first antenna array and the third antenna array are arranged in one radome, and the first antenna array and the second antenna array may also be arranged in the same radome.
  • the third antenna array is separately arranged in a radome and other different situations.
  • the first antenna array, the second antenna array, and the third antenna array can be arranged and set arbitrarily according to needs, and the corresponding radome can also be set according to the setting of the first antenna array, the second antenna array, and the third antenna array. ⁇ assembly.
  • An embodiment of the present application also provides a base station, which includes the antenna system of any one of the foregoing, and a digital phase shifter connected to the antenna system. It can be seen from the above-mentioned antenna system that the base station provided by the embodiment of the present application can add different modules to the antenna system as required, so as to improve the communication performance of the existing base station and reduce the cost of base station modification.

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Abstract

本申请提供了一种天线系统及基站，天线系统包括第一天线阵列及第二天线阵列；第一天线阵列工作在第一工作频段，第二天线阵列工作在第二频段。天线系统还包括一个第一反射板，第一天线阵列、第二天线阵列层叠设置在第一反射板上，且第一天线阵列与第二天线阵列共用一个第一反射板。在装配时，第二天线阵列可以为现有技术中基站上已有的天线，而第一天线阵列为增设的5G天线，第一天线阵列与第一反射板组成一个模块，该模块放置在第二天线阵列背离辐射区域的一侧，第一天线阵列与第二天线阵列共同使用第一反射板。由上述描述可以看出，本申请实施例提供的天线系统可以根据需要增设不同的模块对已有的基站进行通信性能改善，降低了基站改装的成本。

Description

一种天线系统及基站 技术领域
本申请涉及通信技术领域，尤其涉及到一种天线系统及基站。
背景技术
随着通信行业的发展，对基站的通信频段要求越来越高，运营商期望基站具有更多的通信频段。而运营商站点天面空间资源有限，因此在设置基站时，基站的多频段天线采用嵌套或者堆叠等方案，以增加基站的工作频段。但是现有技术中，不同频段天线采用嵌套或者堆叠的方式放置在一起时，一旦基站建造好后，在基站上增设其他频段的天线比较困难。
发明内容
本申请提供了一种天线系统及基站，用于改善基站的通信性能。
第一方面，提供了一种天线系统，该天线系统至少包括两个工作在不同频段的天线阵列：第一天线阵列及第二天线阵列；其中，第一天线阵列工作在第一工作频段，第二天线阵列工作在第二频段，示例的第一天线为5G天线，第二天线为2G、3G、4G天线。天线系统还包括一个第一反射板，第一天线阵列、第二天线阵列层叠设置在第一反射板上，且第一天线阵列与第二天线阵列共用一个第一反射板。在装配时，第二天线阵列可以为现有技术中基站上已有的天线，而第一天线阵列为增设的5G天线，第一天线阵列与第一反射板组成一个模块，该模块放置在第二天线阵列背离辐射区域的一侧，第二天线阵列与第一天线阵列共同使用第一反射板。由上述描述可以看出，本申请实施例提供的天线系统可以根据需要增设不同的模块对已有的基站进行通信性能改善，降低了基站改装的成本。
在一个具体的可实施方案中，还包括给第二天线阵列馈电的第二馈电网络，且所述第二馈电网络设置在所述第二天线阵列与所述第一天线阵列之间。通过将第二馈电网络设置在第一天线阵列与第二天线阵列之间，方便了第一天线阵列及第一反射板的设置。
在一个具体的可实施方案中，还包括天线罩；所述第一天线阵列、所述第二天线阵列及所述第二馈电网络设置在所述天线罩内。通过设置的天线罩保护第一天线阵列及第二天线阵列，提高了两个天线阵列的安全性。
在一个具体的可实施方案中，所述天线罩的包括第一天线罩及第二天线罩，所述第一天线阵列及所述第一反射板设置在第一天线罩；所述第二天线阵列及所述第二馈电网络设置在第二天线罩。通过不同的天线罩分别保护第一天线阵列及第二天线阵列。
在一个具体的可实施方案中，所述天线罩为一个，第一天线阵列、第二馈电网络及第二天线阵列设置在一个天线罩内。通过一个天线罩整体保护第一天线阵列及第二天线阵列。
在一个具体的可实施方案中，还包括第二反射板；所述第二天线阵列包含第一部分的第二天线及第二部分的第二天线；所述第一部分的第二天线与所述第一天线阵列层叠设置在所述第一反射板；所述第二部分的第二天线设置在所述第二反射板。通过设置第二反射板反射第二天线阵列的部分信号，增大了第二天线阵列中第二天线的个数。
在一个具体的可实施方案中，第一反射板与第二反射板沿第二方向排列，第二方向垂直与第一方向，其中，第一方向为第一天线阵列与第二天线阵列层叠的方向。增大了第二天线阵列的第二天线个数，避免了第二反射板影响第一天线阵列的辐射效果。
在一个具体的可实施方案中，还包括第三天线阵列，所述第一天线阵列、所述第二天线阵列及所述第三天线阵列为工作在不同频段的天线阵列；其中，所述第三天线阵列与所述第二部分的第二天线层叠设置在所述第二反射板。增加了天线系统的通信覆盖频段。
在一个具体的可实施方案中，还包括天线罩，所述天线罩包括第一天线罩及第二天线罩；所述第一天线阵列及所述第一反射板设置在所述第一天线罩内；所述第二天线阵列、第二馈电网络、所述第三天线阵列及所述第二反射板设置在所述第二天线罩内。通过第一天线罩及第二天线罩分别保护第一天线阵列、第二天线阵列及第三天线阵列。
在一个具体的可实施方案中，还包括天线罩，所述天线罩包括第一天线罩及第二天线罩；所述第一部分的第二天线、所述第二馈电网络、所述第一天线阵列及所述第一反射板设置在所述第一天线罩内；所述第二部分的第二天线、所述第三天线阵列及所述第二反射板设置在第二天线罩内。通过第一天线罩及第二天线罩分别保护第一天线阵列、第二天线阵列及第三天线阵列。
在一个具体的可实施方案中，还包括与所述第二馈电网络连接的移相器，所述移相器设置在所述第二天线罩内，且位于所述第一天线罩内的所述第一部分的第二天线通过跳线与所述移相器连接。通过移相器给第二天线发送信号，并通过跳线连接位于不同天线罩内的第二天线。
在一个具体的可实施方案中，还包括第四天线阵列；所述第一天线阵列、所述第二天线阵列、所述第三天线阵列及所述第四天线阵列为工作在不同频段的天线阵列；所述第四天线阵列与所述第二天线阵列、所述第三天线阵列层叠设置在所述第二反射板。提高了天线系统的通信覆盖频段。
第二方面，提供了一种基站，基站包括上述任一项所述的天线系统，以及与所述天线系统连接的数字移相器。通过天线系统可以根据需要增设不同的模块对已有的基站进行通信性能改善，降低了基站改装的成本。
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图1为本申请实施例提供的天线系统的结构框图；
图2为本申请实施例提供的另一种天线系统的结构框图；
图3为本申请实施例提供的另一种天线系统的结构框图；
图4为本申请实施例提供的另一种天线系统的结构框图；
图5为本申请实施例提供的另一种天线系统的结构框图；
图6为本申请实施例提供的另一种天线系统的结构框图；
图7为本申请实施例提供的另一种天线系统的结构框图。
具体实施方式
为方便理解本申请实施例提供的天线系统，首先说明一下本申请实施例提供的天线系 统的应用场景，本申请示例提供的天线系统应用于基站中。基站的建设是移动通信运营商投资的重要部分，基站的建设一般都是围绕覆盖面、通话质量、投资效益、建设难易、维护方便等要素进行。随着移动通信网络业务向数据化、分组化方向发展，移动通信基站的发展趋势也必然是宽带化、大覆盖面建设。而现有技术中的基站一旦建成，无法增设其他天线频段的天线，或者需要花费较大的费用才能对基站进行改善。为此本申请实施例提供了一种天线系统，用于方便改善基站的频段，提高基站的通信性能。
本申请实施例提供天线系统至少包括两个天线阵列，每个天线阵列中包含多个阵列排列的天线。任意天线阵列的工作频段均不相同，示例性的，天线系统包括第一天线阵列、第二天线阵列，则第一天线阵列及第二天线阵列工作在两个不同的工作频段；天线系统包括第一天线阵列、第二天线阵列及第三天线阵列，则第一天线阵列、第二天线阵列及第三天线阵列均处于不同的工作频段。下面结合具体的附图详细说明本申请实施例提供的天线系统，但是应当理解的是，附图中示出的天线系统仅为方便说明天线系统示例的具体实施方式，本申请实施例提供的天线系统可以根据需要将不同天线阵列按照附图中所示的布局方式进行设置，不仅限与图示的设置方案。
如图1所示，图1示例出了本申请实施例提供的一种天线系统，该天线系统包括第一天线阵列20及第二天线阵列10，第一天线阵列20及第二天线阵列10为工作在不同工作频段的天线，示例性的，第一天线阵列20为5G天线，第二天线阵列10为2G、3G或4G天线。或者第一天线阵列20为2G、3G或4G天线，第二天线阵列10为5G天线。
第一天线阵列20包括多个阵列排列的第一天线21，在图1中仅示例出了一列第一天线，但是应当理解的是，在本申请实施例中并不限定第一天线21的列数，可以根据需要选择性的设置多列第一天线21，示例性的，如两列、三列、四列等不同列数的第一天线21。在第一天线阵列20工作时，第一天线阵列20通过第一馈电网(图中未示出)给第一天线阵列20馈电。
第二天线阵列10包括多个阵列排列的第二天线11，在图1中也仅示例了一列第二天线11，但是对于第二天线11的个数在本申请实施例中并不具体限定，可以根据需要设置多列第二天线11，示例性的，如设置两列、三列、四列等不同列数的第二天线11。在第二天线阵列10工作时，通过第二馈电网络12给第二天线阵列馈电，第二馈电网络12与多个第二天线连接。
继续参考图1，天线系统还包括第一反射板30，第一天线阵列20及第二天线阵列10沿第一方向层叠设置在第一反射板30上。在图1中，箭头所示的方向为第一方向，第一方向为垂直于第一反射板30的反射面方向。如图1中所示，第一天线阵列20的第一天线21固定设置在第一反射板30的反射面，第一馈电网络设置在第一反射板30背离反射面的一侧。第二天线阵列10的第二天线11及第二馈电网络12设置在远离第一反射板30的位置，如图1中所示，第二馈电网络12设置在第二天线阵列10与第一天线阵列20之间。
继续参考图1，由图1可以看出，第一天线阵列20与第一反射板30作为一个整体设置，因此可以将其作为一个模块，而第二天线阵列10与第一天线阵列20及第一反射板30之间分隔设置。示例性的，已有的基站上设置有一个天线阵列，在需要增设第一天线阵列20时，将已有的天线阵列的反射板去掉，并通过加固结构(如天线罩或支撑架)将已有天线阵列中的天线固定，然后将增加的天线阵列与反射板组成的模块增加到已有天线阵列背离第一方向的一侧，形成如图1中所示的结构；其中，第一天线阵列20为已有天线阵列， 第二天线阵列10为增加的天线阵列。或者，将增加的天线阵列直接设置在已有天线阵列的前方(第一方向指向的一侧)，形成如图1所示的结构；其中，已有天线阵列可以为图1中的第一天线阵列20，增加的天线阵列可以为第二天线阵列10。采用上述方式，无需对基站进行大规模的改装，方便增加基站通信频段，改善基站的通信效果。
参考图2，图2中示出了天线系统的另一具体实施方案，图2中的相同标号可以参考图1中的标号。图2中所示的第一天线阵列及第二天线阵列可以参考图1中第一天线阵列及第二天线阵列的相关描述。继续参考图2，图2中所示的天线系统除了包含图1中所示的第一天线阵列及第二天线阵列外，还包括第一天线罩40a及第二天线罩50a。第一天线罩40a及第二天线罩50a沿第一方向排列，上述第二天线阵列的第二天线11及第二馈电网络12均设置在第二天线罩50a内。上述的第一天线阵列及第一反射板30设置在第一天线罩40a内。图2中还示出了第一天线阵列的第一移相器22，第一移相器22设置在第一天线罩40a中，且第一移相器22通过第一馈电网络与多个第一天线21连接并将信号发射到第一天线21。由图2可以看出，第一天线阵列、第一反射板30通过第一天线罩40a组成一个模块，在装配时第一天线罩40a可以直接放置在第二天线罩50a背离第一方向的一侧。
如图3中所示，图3为图2所示的天线系统的一个变形方式。在图3所示的天线系统中第一天线阵列及第二天线阵列与图2中的第一天线阵列及第二天线阵列相同。区别在于图3中只设置了一个第一天线罩40b，第二天线阵列、第二馈电网络12、第一天线阵列及以及第一反射板30沿第一反向依次排列，并且都设置在同一个天线罩(第一天线罩40b)内。应当理解的是，图2及图3示例的天线系统可以根据实际的情况选择性设置，既可以将不同的天线阵列设置在不同的天线罩内，也可以设置在同一个天线罩内，在本申请实施例中并不做具体的限定。
如图4所示，图4中示例出了天线系统包含三个天线阵列的一种具体的实施方式。图4中的相同标号可以参考图1中的相同标号。在图4中所示的天线系统包括第一天线阵列、第二天线阵列及第三天线阵列。如图4中所示，第一天线阵列的第一天线21设置在第一反射板30上，并通过第一馈电网络与第一移相器22连接。而第一天线阵列、第一反射板30及第一移相器22设置在第一天线罩40c内。第二天线阵列的多个第二天线11被划分成两部分，分别为第一部分的第二天线11a及第二部分的第二天线11b，其中，第一部分的第二天线11a包含多个第二天线11a，第二部分的第二天线11b包含多个第二天线11b。第一部分的第二天线11a及其对应连接的第二馈电网络12设置在了第二天线罩50c。继续参考图4，第三天线阵列包括多个第三天线61，第三天线阵列通过第三馈电网络馈电。第二部分的第二天线11b与第三天线阵列设置在第二反射板70上，且第二部分的第二天线11b、第三天线阵列及第二反射板70沿第一方向排列。第二部分的第二天线11b、第三天线阵列以及第二反射板70设置在第三天线罩90内。在图4所示的天线系统中还示出了第二移相器13及第三移相器62，第二移相器13及第三移相器62沿第一方向排列设置在第三天线罩90内。第二移相器13通过第二部分的第二天线11b对应的第二馈电网络与第二移相器13连接，第一部分的第二天线11a对应的第二馈电网络12通过第二天线罩50c及第三天线罩90之间的跳线100与第二移相器13连接。第三天线阵列通过第三馈电网络与第三移相器62连接。
继续参考图4，第一天线罩40c及第二天线罩50c沿第一方向排列，且第一天线罩40c及第二天线罩50c沿第二方向与第三天线罩90排列。如图4中箭头所示的方向，第二方向 为垂直于第一方向的方向。在图4所示的天线系统中，第一反射板30与第二反射板70也沿第二方向排列，使得第二反射板70与第一天线阵列在空间上错位，即第二反射板70位于多个第一天线21的非重叠区，避免第二反射板70遮挡到第一天线21的信号辐射，减少设置的第二反射板70对第一天线21的影响。
本申请实施例提供的天线罩的设置方式不仅限于图4中所示的方式，在第一天线阵列、第二天线阵列及第三天线阵列采用图4所示的方式排列时，还可以将图3中所示的天线罩应用在图4中，形成如图5所示的天线系统，图4中的第一天线罩40c与第二天线罩50c可以合并成第一天线罩40d，另一个天线罩为第二天线罩50d，第一天线罩40d与第二天线罩50d沿第二方向排列设置。第一部分的第二天线11a、第一天线阵列及第一反射板30设置在所述第一天线罩内；而第二部分的第二天线11b、第二反射板70及第二天线阵列的第二移相器13设置在第二天线罩内。
如图6所示，图6示例出了天线系统包含三个天线阵列的另一种具体的实施方式。图6中的相同标号可以参考图4中的相同标号。图6中所示的天线系统包括第一天线阵列、第二天线阵列及第三天线阵列，三个天线阵列的结构与图4中所示的结构相同，在此不再赘述。在图6所示的天线系统中包含了两个天线罩，分别为第一天线罩40e及第二天线罩50e。如图6中所示，第二天线罩50e为一个L形的罩体，其右上角具有一个缺口(以图6中天线系统的放置方向为参考方向)，第一天线罩40e设置在第二天线罩50e的缺口位置。继续参考图6，多个第一天线21、第一反射板30及第一移相器22沿第一方向排列在第一天线罩40e内。第二天线罩50e为一个L形结构，第一天线罩40e位于第二天线罩50e的缺口位置。第一部分的第二天线11a位于第二天线罩50e内，并沿第一方向与第一天线21、第一反射板30层叠设置；第二部分的第二天线11b、第三天线阵列、第二反射板70及第三移相器62、第二移相器13沿第一方向层叠设置在第二天线罩50e内。
如图7所示，图7示例出了天线系统的另一个结构，图7中的标号可以参考图6中的相同标号，图7所示的天线系统与图6所示的天线系统的区别在于图7所示的天线系统增加了一个第四天线阵列，其中第一天线阵列、第二天线阵列、第三天线阵列及第四天线阵列为工作在不同频段的天线阵列；示例性的，第一天线阵列的工作频段为5G、第二天线阵列的工作频段为4G、第三天线阵列的工作频段为3G、第四天线阵列的工作频段为2G。继续参考图7，第一天线阵列、第二天线阵列及第三天线阵列的设置方式与图6相同，在此不再赘述。第四天线阵列设置时与第二天线阵列、第三天线阵列层叠设置在第二反射板70。示例的，第四天线阵列包括多个第四天线81，第四移相器82通过第四馈电网络给第四天线阵列馈电。在设置第四天线阵列时，第四天线阵列与第三天线阵列位于第二反射板70的同一侧，且第四天线阵列固定设置在第二反射板70，第四移相器82与第四天线81分列在第二反射板70的两侧。
应当理解的是，图4～图7中所示的天线系统包含的天线阵列仅仅为一个示例，在本申请实施例中并不限定天线阵列的个数，以及具体的组合方式。示例性的，本申请实施例提供的天线系统既可以采用图6中所示的第二天线阵列与第三天线阵列设置在一个天线罩内，第一天线阵列设置在另一个天线罩内，也可以采用第二天线阵列单独设置在一个天线罩内，而第一天线阵列与第三天线阵列设置在一个天线罩内，还可以采用第一天线阵列与第二天线阵列设置在一个天线罩内，第三天线阵列单独设置在一个天线罩内等不同的情况。第一天线阵列、第二天线阵列、第三天线阵列可以根据需要进行任意的排列设置，对 应设置的天线罩也可以根据第一天线阵列、第二天线阵列及第三天线阵列的设置方式进行对应的装配。
本申请实施例还提供了一种基站，该基站包括上述任一项的天线系统，以及与天线系统连接的数字移相器。由上述的天线系统可以看出，本申请实施例提供的基站可以根据需要对天线系统增设不同的模块，从而达到对已有的基站进行通信性能改善，降低了基站改装的成本。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (11)

  1. 一种天线系统，其特征在于，包括：第一天线阵列、第二天线阵列及第一反射板；其中，所述第一天线阵列与所述第二天线阵列为工作在不同频段的天线阵列；
    所述第一天线阵列及所述第二阵列层叠设置在第一反射板；且所述第一天线阵列及所述第二天线阵列共用所述第一反射板。
  2. 如权利要求1所述的天线系统，其特征在于，还包括给所述第二天线阵列馈电的第二馈电网络，且所述第二馈电网络设置在所述第二天线阵列与所述第一天线阵列之间。
  3. 如权利要求1或2所述的天线系统，其特征在于，还包括天线罩；所述第一天线阵列、所述第二天线阵列及所述第二馈电网络设置在所述天线罩内。
  4. 如权利要求3所述的天线系统，其特征在于，所述天线罩的包括第一天线罩及第二天线罩，所述第一天线阵列及所述第一反射板设置在第一天线罩；所述第二天线阵列及所述第二馈电网络设置在第二天线罩。
  5. 如权利要求1或2所述的天线系统，其特征在于，还包括第二反射板；
    所述第二天线阵列包含第一部分的第二天线及第二部分的第二天线；
    所述第一部分的第二天线与所述第一天线阵列层叠设置在所述第一反射板；
    所述第二部分的第二天线设置在所述第二反射板。
  6. 如权利要求5所述的天线系统，其特征在于，还包括第三天线阵列，所述第一天线阵列、所述第二天线阵列及所述第三天线阵列为工作在不同频段的天线阵列；
    所述第三天线阵列与所述第二部分的第二天线层叠设置在所述第二反射板。
  7. 如权利要求6所述的天线系统，其特征在于，还包括天线罩，所述天线罩包括第一天线罩及第二天线罩；
    所述第一天线阵列及所述第一反射板设置在所述第一天线罩内；
    所述第二天线阵列、所述第二馈电网络、所述第三天线阵列及所述第二反射板设置在所述第二天线罩内。
  8. 如权利要求6所述的天线系统，其特征在于，还包括天线罩，所述天线罩包括第一天线罩及第二天线罩；
    所述第一部分的第二天线、所述第二馈电网络、所述第一天线阵列及所述第一反射板设置在所述第一天线罩内；
    所述第二部分的第二天线、所述第三天线阵列及所述第二反射板设置在第二天线罩内。
  9. 如权利要求8所述的天线系统，其特征在于，还包括与所述第二馈电网络连接的移相器，所述移相器设置在所述第二天线罩内，且位于所述第一天线罩内的所述第一部分的第二天线通过跳线与所述移相器连接。
  10. 如权利要求6～8任一项所述的天线系统，其特征在于，还包括第四天线阵列；所述第一天线阵列、所述第二天线阵列、所述第三天线阵列及所述第四天线阵列为工作在不同频段的天线阵列；
    所述第四天线阵列与所述第二天线阵列、所述第三天线阵列层叠设置在所述第二反射板。
  11. 一种基站，其特征在于，包括如权利要求1～10任一项所述的天线系统，以及与 所述天线系统连接的数字移相器。
PCT/CN2019/122283 2019-11-30 2019-11-30 一种天线系统及基站 WO2021103032A1 (zh)

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EP19954138.4A EP4047749A4 (en) 2019-11-30 2019-11-30 ANTENNA SYSTEM AND BASE STATION
CN201980102146.8A CN114730990A (zh) 2019-11-30 2019-11-30 一种天线系统及基站
US17/827,727 US20220285858A1 (en) 2019-11-30 2022-05-29 Antenna system and base station

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