Patent Publication Number: US-2023155276-A1

Title: Multi-standard integrated antenna

Description:
TECHNICAL FIELD 
     The present application relates to the field of communication technology, more specifically to a multi-standard integrated antenna. 
     BACKGROUND 
     The rapid growth of data service in mobile communication promotes the continuous development of communication technology. In order to reduce the cost of network construction, there is a common phenomenon at home and abroad that the second generation (2G), the third generation (3G) and the fourth generation (4G) network coexist. When using common narrow band antennas, many antennas are required to be arranged for one base station, which greatly increases the system complexity and property costs. 
     On the other hand, with the continuous development of mobile communication industry, the study on the fifth generation (5G) with Massive MIMO array (i.e. large-scale antenna array) has been launched. However, the applicant found that most of the current studies on 5G communication technology only involve 5G antenna itself. However, no matter for the above 2G antenna, 3G antenna, 4G antenna, or for the 5G antenna which is under key study at present, there are still some challenges, for example, it&#39;s not easy to change the structure and construction for the assembled products, and it&#39;s hard for maintenance, etc. In addition, since the investment of network construction is huge for the operators, maximization of the return on investment should to be considered. The 2G antenna, 3G antenna, 4G antenna and 5G antenna are bound to coexist for a long time. On the one hand, it will greatly increase the investment of the network construction and the use cost, and on the other hand, it will be more difficult for site selection for the network construction. 
     SUMMARY 
     The technical problem to be solved by the present application is to provide a multi-standard integrated antenna which is compatible with two or more antenna systems to realize an integrated design. 
     In order to solve the above technical problem, the technical schemes adopted by the multi-standard integrated array antenna of the present application are as follows: 
     A multi-standard integrated antenna comprises: 
     a first antenna system with a Massive MIMO array; 
     a second antenna system with an antenna array and operating in a set network standard, the second antenna system is a passive antenna system or an active antenna system, and the set network standard is at least one of the 4G network standard, 3G network standard and 2G network standard; 
     the first antenna system and the second antenna system share a radome. 
     Further, the multi-standard integrated antenna is a multi-standard integrated array antenna, and the second antenna system is a passive antenna system; or, 
     the multi-standard integrated antenna is a multi-standard integrated active antenna, and the second antenna system is an active antenna system. 
     Further, the Massive MIMO array includes: 
     a plurality of sub-arrays, which are arranged along a plurality of first reference axes to form a M×N array, wherein M and N are natural numbers which are ≥1; 
     if M is set as the number of columns and N is set as the number of rows, then: m≥4, n≥1; 
     the sub-array includes at least one first radiation unit which is arranged spaced along the corresponding first reference axis. 
     Further, in the Massive MIMO array, the number of the first radiation units of at least one of the sub-arrays is different from the number of the first radiation units of the rest sub-arrays. 
     Further, a distance between columns of the Massive MIMO array is 0.4-0.6λ; 
     a distance between rows of two adjacent first radiation units is 0.5-0.9λ; 
     wherein, λ is a wavelength corresponding to a center frequency of a operating frequency band of the first radiation unit. 
     Further, when the operating frequency band of the first radiation unit is &lt;1 GHz, the sub-array includes one first radiation unit; when the operating frequency band of the first radiation unit is ≥1 GHz, the sub-array includes at least two first radiation units. 
     Further, the distance between the first radiation unit and the radome is ≤¼λ, wherein λ is the wavelength corresponding to a center frequency of the operating frequency band of the first radiation unit. 
     Further, the antenna array is arranged into a column by a plurality of second radiation units which are spaced along a second reference axis; 
     or, the antenna array is arranged into two columns by a plurality of the second radiation units spaced along two third reference axes; 
     or, the antenna array is arranged into a column by a plurality of low-frequency radiation units and a plurality of high-frequency radiation units along a fourth reference axis, wherein a portion of the high-frequency radiation units and the low-frequency radiation units are coaxially nested; 
     or, the antenna array is arranged into two columns by a plurality of low-frequency radiation units and a plurality of high-frequency radiation units along the two fifth reference axes; wherein a portion of the high-frequency radiation units and the low-frequency radiation units are coaxial nested. 
     Further, the operating frequency band of the second radiation unit is 690-960 MHZ or 1.4-2.2 GHZ or 1.7-2.7 GHZ. 
     Further, the operating frequency band of the low-frequency radiation unit is 690-960 MHZ, and the operating frequency band of the high-frequency radiation unit is 1.4-2.2 GHZ or 1.7-2.7 GHZ. 
     Further, the distance between the second radiation unit and the radome is ≤¼λ, wherein λ is the wavelength corresponding to a center frequency of the operating frequency band of the second radiation unit. 
     Further, the distance between the low-frequency radiation unit and the radome is ≤¼λ, wherein λ is the wavelength corresponding to a center frequency of the operating frequency band of the low-frequency radiation unit. 
     Further, when the multi-standard integrated antenna is a multi-standard integrated array antenna, the first antenna system further includes a first power divider network, a phase shifter and a calibration network which are connected to the Massive MIMO array, and includes a filter and a RF transceiver component of active system which are connected to the calibration network; the second antenna system further includes a second power divider network and a phase shifter which are connected to the antenna array; 
     or, when the multi-standard integrated antenna is a multi-standard integrated active antenna, the first antenna system further includes a first power divider network and a calibration network which are connected to the Massive MIMO array, and includes a filter and a RF transceiver component of active system which are connected to the calibration network; the active antenna system includes a second power divider network, a phase shifter and a RRU which are connected to the antenna array. 
     Further, the multi-standard integrated antenna further includes a first reflecting plate and a second reflecting plate which are arranged successively along the longitudinal direction of the radome; the Massive MIMO array is provided on the first reflecting plate and the antenna array is provided on the second reflecting plate. 
     Further, the first reflecting plate and the second reflecting plate can be detachably connected together; 
     or, the first reflecting plate and the second reflecting plate are integrally molded to form a shared reflecting plate. 
     Based on the above technical scheme, the multi-standard integrated antenna of the present application has at least the following beneficial effects compared with the prior art. 
     The multi-standard integrated antenna of the present application realizes an integrated design of two or more antenna systems including Massive MIMO array antenna system. The structure is compact. It not only improves the compatibility of various communication systems, but also makes it easier to reuse the existing base stations, thus it significantly simplifies the base station disposition. It is conducive to fully saving the resource of platform where the antennas are located, reducing the difficulty of network planning, reducing the construction cost of operators and improving the convenience of later maintenance. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG.  1    is a first structural schematic diagram of a multi-standard integrated antenna provided by an embodiment of the present application, where the multi-standard integrated antenna can be a multi-standard integrated array antenna or a multi-standard integrated active antenna; 
         FIG.  2    is a second structural schematic diagram of the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  3    is a third structural schematic diagram of the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  4    is a fourth structural schematic diagram of the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  5    is a first structural schematic diagram of a Massive MIMO array in the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  6    is a second structural schematic diagram of the Massive MIMO array in the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  7    is a third structural schematic diagram of the Massive MIMO array in the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  8    is a fourth structural schematic diagram of the Massive MIMO array in the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  9    is a fifth structural schematic diagram of the Massive MIMO array in the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  10    is a local structural schematic diagram of a position where the first antenna system is located in the multi-standard integrated antenna provided by an embodiment of the present application; 
         FIG.  11    is a local structural schematic diagram of a position where the second antenna system is located in the multi-standard integrated array antenna provided by an embodiment of the present application; 
         FIG.  12    is a local structural schematic diagram of the position where the second antenna system is located in the multi-standard integrated active antenna provided by an embodiment of the present application. 
     
    
    
     DESCRIPTION OF REFERENCE NUMERALS 
     
         
         
           
               100 : Radome,  110 : First sidewall,  120 : Second sidewall,  130 : Third sidewall,  140 : Fourth sidewall,  200 : First antenna system,  210 : First reflecting plate,  220 : Massive MIMO array,  221 : Sub-array,  221   a : First radiation unit,  230 : Calibration network,  240 : Filter,  250 : RF transceiver component of an active system,  300 : Second antenna system,  310 : Second reflecting plate,  320 : Antenna array,  321 : Second radiation unit,  322 : Low-frequency radiation unit,  323 : High-frequency radiation unit, d 1 : the distance between columns of Massive MIMO array, d 2 : the distance between rows of two adjacent first radiation units, d 3 : the distance between a first radiation unit and a radome, d 4 : the distance between a second radiation unit or low-frequency radiation unit and a radome,  330 : Phase shifter,  340 : RRU,  400 : Heat dissipation module. 
           
         
       
    
     DETAILED DESCRIPTION 
     In order to make the technical problems to be solved, technical scheme and beneficial effects more clearly, the present application is further described in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present application and not intended to limit the present application. 
     It should be noted that when a unit is referred to be “fixed” or “provided” on another unit, it may be directly on the other unit or there may be an intermediate unit at the same time. When a unit is referred to be “connected to” another unit, it can also be connected directly to another unit, or there may be an intermediate unit at the same time. 
     In the description of the present application, it should be understood that the terms “first” and “second” are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of present application, “a plurality of” means two or more, unless otherwise specified. 
     In addition, the terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “lateral” and “longitudinal” are based on the relationship of orientation or position shown in the accompanying drawings for the purpose of describing the present application and simplifying the description, rather than indicating or implying that the device or unit in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. 
     Referring to  FIG.  1    to  FIG.  10   , the structures of a multi-standard integrated antenna provided by embodiments of the present application are schematically shown. The multi-standard integrated antenna can be a multi-standard integrated array antenna or a multi-standard integrated active antenna.  FIG.  11    shows a local structural schematic diagram of the position where the second antenna system is located in the multi-standard integrated array antenna provided by an embodiment of the present application.  FIG.  12    shows a local structural schematic diagram of the position where the second antenna system is located in the multi-standard integrated active antenna provided by an embodiment of the present application. As seen from the figures, the multi-standard integrated antenna system includes: a first antenna system  200  with a Massive MIMO array  220 ; a second antenna system  300  with an antenna array  320  and operating in a set network standard. The second antenna system  300  can be a passive antenna system when the multi-standard integrated antenna is a multi-standard integrated array antenna. The second antenna system  300  can be an active antenna system when the multi-standard integrated antenna is a multi-standard integrated active antenna system. The set network standard is at least one of the 4G network system, 3G network system and 2G network system. The first antenna system  200  and the second antenna system  300  share a radome  100 . 
     The second antenna system  300  includes several cases as following: 
     The first case: the second antenna system  300  is an antenna system operating in 4G network standard, or 3G network standard or 2G network standard. Then, the following can be implemented correspondingly by the multi-standard integrated array antenna or active antenna: being compatible with 5G and 4G network application scenarios so as to realize an integrated design of 5G and 4G antenna systems; or, being compatible with 5G and 3G network application scenarios to realize an integrated design of 5G and 3G antenna systems; or, being compatible with 5G and 2G network application scenarios to realize an integrated design of 5G and 2G antenna systems. That is, the multi-standard integrated antenna can be used in an integrated scheme which is compatible with two antenna systems for different network standards. The integration of two antenna systems can thus be achieved in a compact structure and the difficulty of network planning is reduced. Preferably, in the embodiment of multi-standard integrated array antenna, the above 4G antenna system, 3G antenna system and 2G antenna system are all passive antenna systems. Preferably, in the embodiment of multi-standard integrated active antenna, the above 4G antenna system, 3G antenna system and 2G antenna system are all active antenna systems. 
     The second case: the second antenna system  300  includes any two of the antenna systems which are operating in 4G network standard, 3G network standard and 2G network standard. Then the following can be implemented correspondingly by the multi-standard integrated array antenna or active antenna: being compatible with 5G, 4G and 3G network application scenarios to realize an integrated design of 5G, 4G and 3G antenna system; or, being compatible with 5G, 4G and 2G network application scenarios to realize an integrated design of 5G, 4G and 2G antenna system; or, being compatible with 5G, 3G and 2G network application scenarios to realize an integrated design of 5G, 3G and 2G antenna system. That is, the multi-standard integrated antenna can be used in an integrated scheme which is compatible with three antenna systems for different network standards. The integration of three antenna systems can thus be achieved with a compact structure and can be flexibly configured to meet the demand of different product combinations. Accordingly, it is easier to reuse the existing base station, so as to significantly simplify the base station disposition. So the resources are further saved and the investment and use cost are reduced. Preferably, in the embodiment of multi-standard integrated array antenna, at least one of the above 4G antenna system and 3G antenna system is a passive antenna system, or at least one of the above 4G antenna system and 2G antenna system is a passive antenna system, or at least one of the above 3G antenna system and 2G antenna system is a passive antenna system. Preferably, in the embodiment of multi-standard integrated active antenna, the above 4G antenna system and 3G antenna system are both active antenna systems, or the above 4G antenna system and 2G antenna system are both active antenna systems, or the above 3G antenna system and 2G antenna system are both active antenna systems. 
     The third case: the second antenna system  300  includes an antenna system operating in 4G network standard, an antenna system operating in 3G network standard and an antenna system operating in 2G network standard. Then the multi-standard integrated array antenna or active antenna can be compatible with 5G, 4G, 3G and 2G network application scenarios to realize an integrated design of 5G, 4G, 3G and 2G antenna systems. Such integrated scheme which is compatible with four network antenna systems can achieve the integration of four antenna systems in a compact structure. With such integrated scheme, the quantity of antennas used for base stations can be greatly reduced, so that the resources are saved, the cost of station deployment is reduced, and the convenience of operation and maintenance is improved. Preferably, in the embodiment of multi-standard integrated array antenna, at least one of the above 4G antenna system, 3G antenna system and 2G antenna system is a passive antenna system. Preferably, in the embodiment of multi-standard integrated active antenna, the above 4G antenna system, 3G antenna system and 2G antenna system are all active antenna systems. 
     The multi-standard integrated antenna can realize an integrated design of two or more antenna systems including Massive MIMO array antenna system. The structure is compact. It not only improves the compatibility of various communication systems, but also makes it easier to reuse existing base stations, so as to significantly simplify the base station disposition. It is conducive to fully saving the resource of platform where the antennas are located, reducing the difficulty of network planning, reducing the construction cost of operators and improving the convenience of later maintenance. 
     As a preferred embodiment of the present application, the Massive MIMO array  220  includes: a plurality of sub-arrays  221 , which are arranged along several first reference axes (not shown) to form a M×N array, where M and N are natural numbers which are ≥1. If M is set as the number of columns and N is set as the number of rows, then: M≥4, N≥1. The sub-array  221  includes at least one first radiation unit  221   a  which is arranged spaced along the corresponding first reference axis. 
     A variety of preferred arraying patterns of Massive MIMO array  220  are described in detail as below. 
     The sub-array  221  preferably includes 2, 3, 6 or 12 first radiation units  221   a  which are arranged spaced along the corresponding first reference axis. Specifically, the following four arraying patterns are included. 
     The first arraying pattern: referring to  FIG.  5   , a sub-array  221  is formed by two first radiation units  221   a  arranged spaced along a first reference axis (not shown), and a plurality of sub-arrays  221  are arranged into a M×N Massive MIMO array  220 . Specifically, in the embodiment shown in  FIG.  5   , M is 8 and N is 4. The first antenna system  200  with this arraying pattern can form 64 channels to realize horizontal and vertical beam scanning. 
     The second arraying pattern: referring to  FIG.  1    to  FIG.  4   , a sub-array  221  is formed by three first radiation units  221   a  which are arranged spaced along a first reference axis, and a plurality of sub-arrays  221  are arranged into a M×N Massive MIMO array  220 . Specifically, in the embodiments shown in  FIG.  1    to  FIG.  4   , M is 8 and N is 4. The first antenna system  200  of the arraying pattern can also form 64 channels, which can realize horizontal and vertical beam scanning with higher gain than the first arraying pattern. 
     The third arraying pattern: referring to  FIG.  6   , a sub-array  221  is formed by six first radiation units  221   a  which are arranged spaced along a first reference axis, and a plurality of sub-arrays  221  are arranged into a M×N Massive MIMO array  220 . Specifically, in the embodiment shown in  FIG.  6   , M is 8 and N is 2. The first antenna system  200  of the arraying pattern can form 32 channels to realize horizontal and vertical beam scanning. 
     The fourth arraying pattern: referring to  FIG.  7   , a sub-array  221  is formed by twelve first radiation units  221   a  which are arranged spaced along a first reference axis, and a plurality of sub-arrays  221  are arranged into a M×N Massive MIMO array  220 . Specifically, in the embodiment shown in  FIG.  7   , M is 8 and N is 1. The first antenna system  200  in the arraying pattern can form 16 channels to realize horizontal beam scanning. 
     In the embodiments of the present application, it is preferred that when the operating frequency band of the first radiation unit is ≥1 GHz, the sub-array includes at least two first radiation units; when the operating frequency band of the first radiation unit is &lt;1 GHz, the above sub-array preferably includes only one radiation unit, so as to better apply to the corresponding signal coverage requirements. 
     In some embodiments, the operating frequency band of the first radiation unit  221   a  above mentioned can be 2.3-2.7 GHz or 3.2-4.2 GHz or 4.6-5.2 GHz; the operating frequency band of the first radiation unit  221   a  can be further selected as 2.5-2.7 GHz or 3.3-3.8 GHz or 4.8-5.0 GHz, to achieve the required signal coverage. 
     In addition, as a preferred embodiment of the present application, in the Massive MIMO array  220 , the number of the first radiation units  221   a  of at least one sub-array  221  is different from the number of the first radiation units  221   a  of the rest sub-arrays  221 , so as to form a hybrid arraying pattern, which may adapt to more application scenarios with better electrical performance. That is, in the same column of the Massive MIMO array  220 , sub-arrays  221  with at least two numbers of first radiation units  221   a  may be included; between different columns of the Massive MIMO array  220 , sub-arrays  221  with at least two numbers of first radiation units  221   a  may also be included. Specifically, referring to  FIG.  8   , in the same column of Massive MIMO array  220 , there is not only a sub-array  221  formed by two first radiation units  221   a , but also a sub-array  221  formed by six first radiation units  221   a . Referring to  FIG.  9   , between the different columns of the Massive MIMO array  220 , there is not only a sub-array  221  formed by three first radiation units  221   a , but also a sub-array  221  formed by six first radiation units  221   a . It should be understood that the number of the first radiation units  221   a  in the sub-array  221  can be selected according to the actual needs, which is not restrained herein. 
     In  FIG.  1    to  FIG.  9   , a sub-array  221  is formed by the first radiation units  221   a  in each dashed frame. 
     It should be understood that according to different actual situations, the above number of columns M and the number of rows N can be selected, which is not restrained herein. The first reference axes as mentioned above refer to a plurality of reference axes set side by side in parallel. 
     As a preferred embodiment of the present application, referring to  FIG.  1    to  FIG.  4   , the distance d 1  between columns of the Massive MIMO array  220  as above is 0.4-0.6λ, and the distance d 1  between columns is further preferably 0.52. The distance d 2  between rows of two adjacent first radiation units  221   a  is 0.5-0.9λ, and is further preferably 0.6-0.8λ, and the distance d 2  between rows is further preferably 0.7λ. In this embodiment, λ is the wavelength corresponding to a center frequency of operating frequency band of the first radiation unit  221   a . Employing the distance setting as above mentioned is conducive to better electrical performance and compact structure design. It should be understood that the arraying patterns shown in  FIG.  5    to  FIG.  9    are also preferred to use the above distance d 1  between columns and distance d 2  between rows. 
     As a preferred embodiment of the present application, referring to  FIG.  10   , the distance d 3  between the first radiation unit  221   a  and the radome  100  is ≤¼λ, where λ is the wavelength corresponding to a center frequency of operating frequency band of the first radiation unit  221   a . With this distance, the height of where the first radiation unit  221   a  of the Massive MIMO array  220  locates can be similar to the height of where the radiation unit (specifically, the second radiation unit  321 /low-frequency radiation unit  322  described below) of the antenna array  320  of the second antenna system  300  locates, which is conducive to reducing the transverse height of the radome  100  and realizing the antenna miniaturization. 
     As a preferred embodiment of the present application, the antenna array  320  of the second antenna system  300  includes the following arraying patterns: 
     The first arraying pattern: referring to  FIG.  1   , the antenna array  320  is formed into a column by a plurality of second radiation units  321  spaced along a second reference axis (not shown). Of course, a plurality of second radiation units  321  in the antenna array  320  can also be arranged staggered along a second reference axis. In this way, it not only has better electrical performance, but also helps to reduce the transverse width and the structure size is more compact. 
     The second arraying pattern: referring to  FIG.  2   , the antenna array  320  is formed into two columns by a plurality of second radiation units  321  spaced along two third reference axes (not shown). Of course, a plurality of second radiation units  321  in the antenna array  320  may also be arranged staggered along the second reference axes. In addition, the two columns in the antenna array  320  can be arranged interlacing with each other. In this way, it not only has better electrical performance, but also helps to reduce the transverse width and the structure size is more compact. 
     In the above first and second arraying patterns, when the second radiation unit  321  is a low-frequency radiation unit  322 , its operating frequency range is 690-960 MHz; when the second radiation unit  321  is a high-frequency radiation unit  323 , its operating frequency range is 1.4-2.2 GHz or 1.7-2.7 GHz, so as to achieve the corresponding signal coverage. 
     In the first and second arraying patterns, referring to  FIG.  11    and  FIG.  12   , a preferred embodiment is that the distance d 4  between the second radiation unit  321 /low-frequency radiation unit  322  and the radome  100  is ≤¼λ, where λ is the wavelength corresponding to a center frequency of the operating frequency band of the second radiation unit  321 . With this distance, the height of where the first radiation unit  221   a  of the Massive MIMO array  220  locates can be similar to the height of where the second radiation unit  321 /low-frequency radiation unit  322  of the antenna array  320  of the second antenna system  300  locates, which is conducive to reducing the transverse height of the radome  100  and realizing the antenna miniaturization. Preferably, d 3  is equal to d 4 . 
     The third arraying pattern: referring to  FIG.  3   , the above antenna array  320  is arranged into a column along a fourth reference axis (not shown) by a plurality of low-frequency radiation units  322  and a plurality of high-frequency radiation units  323 , where a portion of high-frequency radiation units  323  and low-frequency radiation units  322  are coaxial nested. 
     The fourth arraying pattern: referring to  FIG.  4   , the antenna array  320  is arranged into two columns along two fifth reference axes (not shown) by a plurality of low-frequency radiation units  322  and a plurality of high-frequency radiation units  323 , where a portion of high-frequency radiation units  323  and low-frequency radiation units  322  are coaxial nested. Of course, the two columns in the antenna array  320  may be arranged interlacing with each other. In this way, it not only has better electrical performance, but also helps to reduce the transverse width and the structure size is more compact. 
     In the third and fourth arraying patterns mentioned above, the operating frequency band of low-frequency radiation unit  322  is 690-960 MHz, and the operating frequency band of high-frequency radiation unit  323  is 1.4-2.2 GHz or 1.7-2.7 GHz. A signal coverage for different communication network standards of 4G/3G/2G can be achieved, and it is compatible with the multi-frequency band array antennas with all the standards of 2G, 3G and 4G in mobile communication. It is conducive to the miniaturization of the antenna and the huge expansion of the application scenarios. It can reduce the number of antennas used for the base station and reduce the cost of station deployment and the cost of operation and maintenance. 
     In the third and fourth arraying patterns mentioned above, referring to  FIG.  11    and  FIG.  12   , the distance d 4  between the low-frequency radiation unit  322  and the radome  100  is ≤¼λ, where λ is the wavelength corresponding to a center frequency of the operating frequency band of the low-frequency radiation unit  322 . With this distance, the height of where the first radiation unit  221   a  of the Massive MIMO array  220  locates can be similar to the height of where the second radiation unit  321 /low-frequency radiation unit  322  of the antenna array  320  of the second antenna system  300  locates, which is conducive to reducing the transverse height of the radome  100  and realizing the antenna miniaturization. Preferably, d 3  is equal to d 4 . 
     It should be noted that in each antenna array  320  of the second antenna system  300 , the distance between adjacent second radiation units  321 , the distance between adjacent low-frequency radiation unit  322  and high-frequency radiation unit  323 , the distance between adjacent low-frequency radiation units  322 , the distance between adjacent high-frequency radiation units  323  and the distance between two columns can be designed according to actual needs. Any adjacent radiation units do not interfere with each other, which will not be described in detail herein. 
     It should be noted that the above antenna array  320  can also adopt other existing arraying patterns, or even the existing arraying patterns of other intelligent antennas, which will not restrain herein. 
     It should be noted that all the above reference axes are the reference lines in virtual setting. 
     Preferably, referring to  FIG.  10   , the first antenna system  200  includes a first power divider network (not shown) and a calibration network  230  which are connected to the above Massive MIMO array  220 , and includes a filter  240  and a RF transceiver component of active system  250  (i.e., a transceiver component known in the art) which are connected to the calibration network  230 . In combination with the multi-standard integrated array antenna shown with reference to  FIG.  11   , the second antenna system  300  includes a second power divider network (not shown) and a phase shifter  330  which are connected to the antenna array  320 . In practical application, an existing heat dissipation module  400  is further provided on the side of the RF transceiver component of active system  250  away from the Massive MIMO array  220  in the multi-standard integrated array antenna. In combination with the multi-standard integrated active antenna shown with reference to  FIG.  12   , the second antenna system  300  (i.e., the active antenna system) includes a second power divider network (not shown), a phase shifter  330  and a RRU  340  (i.e., a Remote Radio Unit) which are connected to the antenna array  320 . In practical application, heat dissipation modules  400  are provided on the side of RRU  340  away from phase shifter  330  and on the side of RF transceiver component of active system  250  away from the Massive MIMO array  220  in the multi-standard integrated active antenna. 
     It should be noted that, taking a multi-standard integrated array antenna including a first antenna system  200 , 4G antenna system, 3G antenna system and 2G antenna system as an example, it should also be understood that the antenna array  320  is a general term for the antenna array of 4G antenna system, 3G antenna system and 2G antenna system. The antenna array  320  can form different antennas systems by connecting with different network systems, so as to apply to the corresponding network standard. 
     In addition, it should be noted that, taking the multi-standard integrated active antenna including a first antenna system  200 , 4G antenna system, 3G antenna system and 2G antenna system as an example, it should be understood that 4G antenna system, 3G antenna system and 2G antenna system are all active antenna systems, that is, a RRU (i.e. Remote Radio Unit) should be integrated therein so as to form a RRU integrated active antenna system. Similarly, taking the multi-standard integrated active antenna including a first antenna system  200 , 4G antenna system, 3G antenna system and 2G antenna system as an example, the antenna array  320  is a general term for the antenna array of 4G antenna system, 3G antenna system and 2G antenna system. It should be understood that antenna array  320  can form different antenna systems by connecting with different network systems, so as to apply to corresponding network standard. 
     Preferably, referring to  FIG.  1    to  FIG.  4   , the multi-standard integrated antenna further includes a first reflecting plate  210  and a second reflecting plate  310  successively arranged in a longitudinal direction of the radome  100 . The Massive MIMO array  220  is provided on the first reflecting plate  210 , and the antenna array  320  is provided on the second reflecting plate  310 . 
     As a preferred embodiment of the present application, when the multi-standard integrated antenna is used to realize the integration of two or more different antenna systems, there may be no multiplexing portion between the Massive MIMO array  220  of the first antenna system  200  and the second antenna array  320 . The first reflecting plate  210  and the second reflecting plate  310  are preferably arranged side by side from up to down as shown in  FIG.  1    to  FIG.  4   , so as to better utilize the installation space of the radome  100 . It should be understood that in this embodiment, there should be a certain distance between the Massive MIMO array  220  of the first antenna system  200  and the antenna array  320  of the second antenna system  300 . 
     As a preferred embodiment of the present application, the first reflecting plate  210  and the second reflecting plate  310  can be detachably connected together. This can further facilitate the flexible configuration for different antenna systems according to the actual needs, so as to meet the requirements of different product combinations. After applied to any application scenarios compatible with two or more network including Massive MIMO array  220  antenna system, the reverse structure changes can be made to the assembled multi-standard integrated antenna to adapt to other application scenarios compatible with corresponding network. It greatly improves the convenience of maintenance for the multi-standard integrated antenna and the flexibility of using. It can be easier to reuse the existing base station, so as to significantly simplify the base station disposition. The resources are further saved, the difficulty of network planning is reduced, and the investment and use cost of operators are reduced. Preferably, the first reflecting plate  210  and the second reflecting plate  310  can be detectable connected by an existing connecting element. The connecting element can be an existing clamp structure, a hinge structure or other existing connection structure. 
     As a preferred embodiment of the present application, referring to  FIG.  1    to  FIG.  4   , the first reflecting plate  210  and the second reflecting plate  310  are integrally molded to form a shared reflecting plate. That is, the shared reflecting plate serves as the common reflector of the Massive MIMO array  220  of the first antenna system  200  and the second antenna array  320 . Such structure is more compact under the premise of ensuring the performance index, and is more convenient to manufacture and install. It is preferred that the shared reflecting plate can be designed as a rectangle to maximize the utilization of the shared reflecting plate. 
     As a preferred embodiment of the present application, referring to  FIG.  11    and  FIG.  12   , the radome  100  is surrounded by a first sidewall  110 , a second sidewall  120 , a third sidewall  130  and a fourth sidewall  140  which are arranged successively along the circumference. 
     An optional structure is that the third side wall  130  includes a first wall body (not shown) and a second wall body (not shown), the first wall body is connected with the second side wall  120 , the second wall body is arranged spaced with the first wall body and is connected with the fourth side wall  140 , the first reflecting plate  210  and the second reflecting plate  310  each can be detachably connected between the first wall body and the second wall body. Such structure is more convenient to reconstruct the multi-standard integrated antenna according to the actual needs to meet the requirements of different network standards. 
     Of course, referring to  FIG.  10   , the radome  100  may only include a first sidewall  110 , a second sidewall  120 , and a fourth sidewall  140 . The first reflecting plate  210  may include a bottom wall (not shown) for setting a Massive MIMO array  220 , and two sidewalls (not shown) bending along the lateral two sides of the bottom wall. Referring to  FIG.  11    and  FIG.  12   , the second reflecting plate  310  may include a bottom wall (not shown) for setting the second antenna array  320 , and two side walls (not shown) bending along the lateral two sides of the bottom wall. The above two side walls correspond to the second side wall  120  and the fourth side wall  140 , respectively, and are fixed by connecting with each other. 
     The distance d 3  between the first radiation unit  221   a  and the radome  100  specifically refers to the distance d 3  between the first radiation unit  221   a  and the first side wall  110  of the radome  100 . The distance d 4  between the second radiation unit  321  and the radome  100  refers to the distance d 4  between the second radiation unit  321  and the first side wall  110  of the radome  100 . The distance d 4  between the low-frequency radiation unit  322  and the radome  100  specifically refers to the distance d 4  between the low-frequency radiation unit  322  and the first side wall  110  of the radome  100 . 
     The first radiation unit  221   a , the second radiation unit  321 , the high-frequency radiation unit  323  and the low-frequency radiation unit  322  all preferably adopt a dual polarization radiation unit, so as to improve the stability of the communication performance. Specifically, in this embodiment, the dual polarization radiation unit can be a usual ±45° polarization unit or a vertical/horizontal polarization unit, which will not be limited herein. 
     The first radiation unit  221   a , the second radiation unit  321 , the high-frequency radiation unit  323  and the low-frequency radiation unit  322  can be configured with three-dimensional space structure, and can also adopt an existing planar printing radiation unit (such as microstrip oscillator), patch oscillator or half wave oscillator or the like, and can also be a combination of any of the above antenna oscillators. When the three-dimensional space structure is adopted, the shapes of the high-frequency radiation unit  323  and the low-frequency radiation unit  322  can be rectangle shaped, diamond shaped, circular shaped, elliptical shaped, cross shaped, etc., which can be flexibly selected according to the actual needs. 
     It should be noted that ways of connections between the Massive MIMO array  220 , the first power divider network, the calibration network  230 , the filter  240  and the RF transceiver component  250  of the multi-standard integrated array system can make refernece to the prior art. Ways of connections between the second antenna array  320 , the second power divider network and the phase shifter  330  can make reference to the prior art. It should also be understood that for the multi-standard integrated array antenna, the first antenna system  200  shall also include the existing structures such as heat dissipation module  400  and the like. Ways of connection of the above-mentioned first power divider network, the calibration network  230 , the filter  240 , the RF transceiver component  250  of the active system, the second power divider network, the phase shifter  330  and the structure such as the heat dissipation module  400  and the like or ways for connection between the structures can make reference to the prior art, which will not be described in detail herein. 
     It should be noted that ways of connections between the Massive MIMO array  220 , the first power divider network, the calibration network  230 , the filter  240  and the RF transceiver component  250  of the multi-standard integrated active system can make reference to the prior art. Ways of connections between the second antenna array  320 , the second power divider network, the phase shifter  330  and RRU  340  can make reference to the prior art. It should also be understood that for the multi-standard integrated active antenna, the existing structures such as heat dissipation module  400  and the like can be included. Ways of connections between the above-mentioned first power divider network, the calibration network  230 , the filter  240 , the RF transceiver component  250  of the active system, the second power divider network, the phase shifter  330 , the RRU  340  and the structures such as the heat dissipation module  400  or ways of connections between the structures can make reference to the prior art, which will not be described in detail herein. 
     The embodiments as described above are not used to limit the present application but better embodiments of the present application. Any modification, equivalent replacement and improvement made within the spirit and principles of the application shall be included in the scope of protection of the present application.