Multi-standard fusion array antenna

Abstract

The present invention provides a multi-standard fusion array antenna, comprising: a first antenna system with a Massive MIMO array; a second antenna system with an antenna array and working in a set network standard, wherein the second antenna system is a passive antenna system, and the set network standard is at least one of a 4G network standard, a 3G network standard, and a 2G network standard; the first antenna system and the second antenna system share a common antenna cover. The multi-standard fusion array antenna realizes an integrated design of two or more antenna systems including a Massive MIMO array antenna system, and has a compact structure. It not only improves the compatibility of various communication systems, but also makes it easier to reuse existing base stations, simplify base station configuration, fully save antenna resources, reduce the difficulty of network planning, reduce the cost of operators, and improve the convenience of maintenance.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and more specifically, to a multi-standard fusion array antenna. Background Art

[0002] The rapid growth of data services in mobile communications has promoted the continuous development of communication technology. In order to reduce the cost of network construction, the second-generation mobile communication technology (2nd-generation, 2G), the third-generation mobile communication technology (3rd-generation, 3G) and the fourth-generation mobile communication technology (4th-generation, 4G) networks generally coexist at home and abroad. Using ordinary narrow-band antennas, one base station needs to be equipped with many sub-antennas, which greatly increases the system complexity and property costs.

[0003] On the other hand, with the continuous development of the mobile communications industry, research on the fifth-generation mobile communication technology (5th-generation, 5G) with Massive MIMO arrays (ie: large-scale antenna arrays) has been launched. However, the applicant found that most of the current research on 5G communication technology only involves the 5G antenna itself. However, whether it is the above-mentioned 2G antenna, 3G antenna, 4G antenna, or the 5G antenna that is currently the focus of research, there are still problems such as the structure and construction of the assembled products are not easy to change and maintenance is difficult. In addition, operators have huge investments in network construction, and they must consider maximizing investment returns. 2G antennas, 3G antennas, 4G antennas and 5G antennas are bound to coexist for a long time. On the one hand, it will greatly increase the investment and use costs of network construction, and on the other hand, the site selection for network construction will be more difficult. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an array antenna that is compatible with two or more antenna systems to achieve multi-standard fusion in an integrated design.

[0005] In order to solve the above technical problems, the technical solution adopted by the multi-standard fusion array antenna of the present invention is:

[0006] A multi-standard fusion array antenna, comprising:

[0007] The first antenna system with Massive MIMO array;

[0008] A second antenna system having an antenna array and working in a set network standard, wherein the second antenna system is a passive antenna system, and the set network standard is at least one of a 4G network standard, a 3G network standard, and a 2G network standard;

[0009] The first antenna system and the second antenna system share a common radome.

[0010] Furthermore, the Massive MIMO array includes:

[0011] A plurality of sub-arrays, wherein the plurality of sub-arrays are arranged along a plurality of first reference axes to form an M×N array, wherein M and N are both natural numbers ≥ 1;

[0012] If M is the number of columns and N is the number of rows, then: M ≥ 4, N ≥ 1;

[0013] The sub-array includes at least one first radiation unit arranged at intervals along the first reference axis.

[0014] Furthermore, in the Massive MIMO array, the number of first radiation units of at least one sub-array is different from the number of first radiation units of other sub-arrays.

[0015] Furthermore, the inter-column spacing of the Massive MIMO array is 0.4 to 0.6λ;

[0016] The row spacing between two adjacent first radiation units is 0.5-0.9λ;

[0017] Among them, λ is the wavelength corresponding to the center frequency of the working frequency band of the first radiation unit.

[0018] Furthermore, when the operating frequency band of the first radiation unit is less than 1 GHz, the subarray includes one first radiation unit; when the operating frequency band of the first radiation unit is greater than or equal to 1 GHz, the subarray includes at least two first radiation units.

[0019] Furthermore, the distance between the first radiation unit and the antenna cover is ≤1 / 4λ, wherein λ is the wavelength corresponding to the center frequency of the operating frequency band of the first radiation unit.

[0020] Further, the antenna array is composed of a plurality of second radiation units arranged in a row along a second reference axis;

[0021] Alternatively, the antenna array is composed of a plurality of the second radiation units arranged in two rows along two third reference axes;

[0022] Alternatively, the antenna array is composed of a plurality of low-frequency radiation units and a plurality of high-frequency radiation units arranged in a row along a fourth reference axis, wherein some of the high-frequency radiation units are coaxially nested with the low-frequency radiation units;

[0023] Alternatively, the antenna array is composed of a plurality of low-frequency radiating units and a plurality of high-frequency radiating units arranged in two rows along two fifth reference axes, wherein some of the high-frequency radiating units are coaxially nested with the low-frequency radiating units.

[0024] Furthermore, 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.

[0025] Furthermore, 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.

[0026] Furthermore, the distance between the second radiation unit and the antenna cover is ≤1 / 4λ, wherein λ is the wavelength corresponding to the center frequency of the operating frequency band of the second radiation unit.

[0027] Furthermore, the distance between the low-frequency radiation unit and the antenna cover is ≤1 / 4λ, wherein λ is the wavelength corresponding to the center frequency of the working frequency band of the low-frequency radiation unit.

[0028] Furthermore, the first antenna system also includes a first power division network, a phase shifter and a calibration network connected to the Massive MIMO array, and a filter and an active system RF receive / transmit component connected to the calibration network; the second antenna system also includes a second power division network and a phase shifter connected to the antenna array.

[0029] Furthermore, the multi-standard fusion array antenna also includes a first reflector and a second reflector which are sequentially arranged along the longitudinal direction of the antenna cover, the Massive MIMO array is arranged on the first reflector, and the antenna array is arranged on the second reflector.

[0030] Furthermore, the first reflective plate and the second reflective plate are detachably connected together;

[0031] Alternatively, the first reflective plate and the second reflective plate are integrally formed to form a common reflective plate.

[0032] Based on the above technical solution, the multi-standard fusion array antenna of the present invention has at least the following beneficial effects compared with the prior art:

[0033] The multi-standard fusion array antenna of the present invention realizes the integrated design of two or more antenna systems including the Massive MIMO array antenna system, and has a compact structure. It not only improves the compatibility of various communication systems, but also can easily reuse existing base stations, significantly simplifying the base station configuration, which is conducive to fully saving antenna resources, reducing the difficulty of network planning, reducing the construction cost of operators and improving the convenience of later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1A schematic diagram of the first structure of a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0035] Figure 2 A second structural schematic diagram of a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0036] Figure 3 A third structural schematic diagram of a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0037] Figure 4 A fourth structural schematic diagram of a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of a first structure of a Massive MIMO array in a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0039] Figure 6 A second structural diagram of a Massive MIMO array in a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0040] Figure 7 A third structural schematic diagram of a Massive MIMO array in a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0041] Figure 8 A fourth structural schematic diagram of a Massive MIMO array in a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0042] Fig. 9 A fifth structural diagram of a Massive MIMO array in a multi-standard fusion array antenna provided in an embodiment of the present invention;

[0043] Fig.10 A schematic diagram of the local structure of the location of the first antenna system in the multi-standard fusion array antenna provided in an embodiment of the present invention;

[0044] Fig.11 A schematic diagram of the local structure of the location of the second antenna system in the multi-standard fusion array antenna provided in an embodiment of the present invention;

[0045] Description of Figure Numbers:

[0046] 100-radome, 110-first side wall, 120-second side wall, 130-third side wall, 140-fourth side wall, 200-first antenna system, 210-first reflector, 220-Massive MIMO array, 221-subarray, 221a-first radiation unit, 230-calibration network, 240-filter, 250-active system RF receive / transmit component, 300-second antenna system, 310-second reflector, 320-antenna array, 321-second radiation unit, 322-low-frequency radiation unit, 323-high-frequency radiation unit, d1-column spacing of Massive MIMO array, d2-row spacing between two adjacent first radiation units; d3-spacing between the first radiation unit or the second radiation unit or the low-frequency radiation unit and the radome, h-lateral height of the radome, 330-phase shifter, 400-heat dissipation module. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] It should be noted that when a unit is referred to as being "fixed on" 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 as being "connected to" another unit, it may also be directly connected to the other unit or there may be an intermediate unit at the same time.

[0049] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] In addition, the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "lateral", and "longitudinal" are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0051] Reference Figures 1 to 11As shown, an embodiment of the present invention provides a multi-standard fusion array antenna, including: a first antenna system 200 having a Massive MIMO array 220; a second antenna system 300 having an antenna array 320 and working in a set network standard, the second antenna system 300 is a passive antenna system, and the set network standard is at least one of the 4G network standard, the 3G network standard and the 2G network standard; the first antenna system 200 and the second antenna system 300 share a antenna cover 100.

[0052] The second antenna system 300 includes the following situations:

[0053] The first case is: the second antenna system 300 is an antenna system working in the 4G network standard, or an antenna system working in the 3G network standard, or an antenna system working in the 2G network standard. At this time, the multi-standard fusion array antenna can be correspondingly realized: compatible with 5G and 4G network application scenarios, realizing the integrated design of 5G and 4G antenna systems; or, compatible with 5G and 3G network application scenarios, realizing the integrated design of 5G and 3G antenna systems; or, compatible with 5G and 2G network application scenarios, realizing the integrated design of 5G and 2G antenna systems; that is, the array antenna can be used to be compatible with the common solution of two different network standard antenna systems, realizing the integration of the two antenna systems, with a compact structure, and reducing the difficulty of network planning. Specifically in this embodiment, the above-mentioned 4G antenna system, 3G antenna system and 2G antenna system are all passive antenna systems.

[0054] The second situation is: the second antenna system 300 includes any two of the antenna systems working in the 4G network standard, the antenna systems working in the 3G network standard, and the antenna systems working in the 2G network standard. At this time, the array antenna can be correspondingly realized: compatible with 5G, 4G and 3G network application scenarios, realizing the integrated design of 5G, 4G and 3G antenna systems; or, compatible with 5G, 4G and 2G network application scenarios, realizing the integrated design of 5G, 4G and 2G antenna systems; or, compatible with 5G, 3G and 2G network application scenarios, realizing the integrated design of 5G, 3G and 2G antenna systems; that is, the array antenna can be used for a common solution compatible with three different network standard antenna systems, realizing the integration of the three antenna systems, with a compact structure, and can be flexibly configured to meet the needs of different product combinations, and can easily reuse existing base stations to significantly simplify base station configuration, further saving resources, and reducing investment and use costs. Specifically in this embodiment, at least one of the above-mentioned 4G antenna system and the 3G antenna system is a passive antenna system, or at least one of the above-mentioned 4G antenna system and the 2G antenna system is a passive antenna system, or at least one of the above-mentioned 3G antenna system and the 2G antenna system is a passive antenna system.

[0055] The third situation is that the second antenna system 300 includes an antenna system working in the 4G network standard, an antenna system working in the 3G network standard, and an antenna system working in the 2G network standard. At this time, the array antenna can be compatible with 5G, 4G, 3G and 2G network application scenarios, realizing the integrated design of 5G, 4G, 3G and 2G antenna systems. This common solution compatible with four network standard antenna systems realizes the integration of four antenna systems, has a compact structure, can greatly reduce the number of antennas used in base stations, saves resources, reduces station deployment costs, and improves the convenience of operation and maintenance. Specifically in this embodiment, at least one of the above-mentioned 4G antenna system, 3G antenna system and 2G antenna system is a passive antenna system.

[0056] This multi-standard fusion array antenna realizes the integrated design of two or more antenna systems including the Massive MIMO array antenna system. It has a compact structure, which not only improves the compatibility of various communication systems, but also makes it easier to reuse existing base stations, significantly simplifying base station configuration, which is conducive to fully saving antenna resources, reducing the difficulty of network planning, reducing the construction cost of operators and improving the convenience of later maintenance.

[0057] As a preferred embodiment of the present invention, the above-mentioned Massive MIMO array 220 includes: a plurality of sub-arrays 221, wherein the plurality of sub-arrays 221 are arranged along a plurality of first reference axes (not shown) to form an M×N array, wherein M and N are both natural numbers ≥1; if M is the number of columns and N is the number of rows, then: M≥4, N≥1; the sub-array 221 includes at least one first radiation unit 221a arranged at intervals along the corresponding first reference axis.

[0058] The following describes in detail various preferred array configurations of the Massive MIMO array 220:

[0059] The above sub-array 221 preferably includes 2, 3, 6 or 12 first radiation units 221a arranged at intervals along the corresponding first reference axis. Specifically, it includes the following four array forms:

[0060] The first form of formation is: Figure 5 , two first radiating units 221a arranged at intervals along a first reference axis (not shown) constitute a subarray 221, and multiple subarrays 221 are arranged to form an M×N Massive MIMO array 220. Specifically in this embodiment, M is 8 and N is 4. The first antenna system 200 in the form of an array can form 64 channels to achieve horizontal and vertical beam scanning.

[0061] The second formation form is: Figures 1 to 4, three first radiation units 221a arranged at intervals along the first reference axis form a subarray 221, and multiple subarrays 221 are arranged to form an M×N Massive MIMO array 220. Specifically in this embodiment, M is 8 and N is 4. The first antenna system 200 in the array form can also form 64 channels, achieving higher gain horizontal scanning and vertical scanning of the beam than the first array form.

[0062] The third formation form is: Figure 6 , six first radiation units 221a arranged at intervals along the first reference axis form a subarray 221, and multiple subarrays 221 are arranged to form an M×N Massive MIMO array 220. Specifically in this embodiment, M is 8 and N is 2. The first antenna system 200 in the form of an array can form 32 channels to achieve horizontal and vertical beam scanning.

[0063] The fourth array form is: refer to Figure 7 , 12 first radiation units 221a arranged at intervals along the first reference axis constitute a sub-array 221, and multiple sub-arrays 221 are arranged to form an M×N Massive MIMO array 220. Specifically in this embodiment, M is 8 and N is 1. The first antenna array 320 in the form of an array can form 16 channels to achieve horizontal beam scanning.

[0064] Specifically in this embodiment, when the operating frequency band of the first radiation unit is ≥1 GHz, the subarray includes at least two of the first radiation units; and when the operating frequency band of the first radiation unit is <1 GHz, the subarray preferably includes only one radiation unit to better meet the corresponding signal coverage requirements.

[0065] In some embodiments, the operating frequency band of each of the above-mentioned first radiation units 221a can be 2.3~2.7GHz or 3.2~4.2GHz or 4.6~5.2GHz; the operating frequency band of the first radiation unit 221a can also be selected as 2.5~2.7GHz or 3.3~3.8GHz or 4.8~5.0GHz to achieve the required signal coverage.

[0066] In addition, as a preferred embodiment of the present invention, at least one sub-array 221 in the Massive MIMO array 220 has a different number of first radiation units 221a from the other sub-arrays 221, so as to form a hybrid array form, adapt to more application scenarios, and have better electrical performance. That is, in the same column of the Massive MIMO array 220, a sub-array 221 with at least two numbers of first radiation units 221a may be included; between different columns of the Massive MIMO array 220, a sub-array 221 with at least two numbers of first radiation units 221a may also be included. Specifically in this embodiment, refer to Figure 8 As shown, in the same column of the Massive MIMO array 220, there is a sub-array 221 composed of two first radiation units 221a and a sub-array 221 composed of six first radiation units 221a; Fig. 9 , between different columns of the MassiveMIMO array 220, there are both sub-arrays 221 consisting of two first radiation units 221a and sub-arrays 221 consisting of six first radiation units 221a. It should be understood that the number of the first radiation units 221a in the above sub-arrays 221 can be selected according to actual needs and is not limited thereto.

[0067] Figures 1 to 9 In the figure, the first radiation units 221a in each dotted frame form a sub-array 221.

[0068] It should be understood that the number of columns M and the number of rows N can be selected according to different actual conditions, and are not limited here. The first reference axes refer to reference axes arranged side by side in parallel.

[0069] As a preferred embodiment of the present invention, refer to Figures 1 to 4 , the inter-column spacing d1 of the Massive MIMO array 220 is 0.4-0.6λ, and the inter-column spacing d1 is further preferably 0.5λ; the inter-row spacing d2 between two adjacent first radiation units 221a is 0.5-0.9λ, and is further preferably 0.6-0.8λ, and the inter-row spacing d2 is further preferably 0.7λ; specifically in this embodiment, λ is the wavelength corresponding to the center frequency of the working frequency band of the first radiation unit 221a. The above spacing setting is conducive to achieving better electrical performance and compact structural design. It should be understood that, Figures 5 to 9 The array shown also preferably adopts the above-mentioned inter-column spacing d1 and inter-row spacing d2.

[0070] As a preferred embodiment of the present invention, refer to Fig.10, the spacing d3 between the first radiation unit 221a and the antenna cover 100 is ≤ 1 / 4λ, where λ is the wavelength corresponding to the center frequency of the working frequency band of the first radiation unit 221a. This spacing can make the height of the first radiation unit 221a of the Massive MIMO array 220 and the radiation unit of the antenna array 320 of the second antenna system 300 (specifically the second radiation unit 321 / low-frequency radiation unit 322 described below) close, which is conducive to reducing the lateral height h of the antenna cover 100, thereby realizing the miniaturization of the antenna.

[0071] As a preferred embodiment of the present invention, the antenna array 320 of the second antenna system 300 includes the following array forms:

[0072] The first form of formation is: Figure 1 The antenna array 320 is composed of a plurality of second radiating units 321 arranged in a row along a second reference axis (not shown). Of course, the plurality of second radiating units 321 in the antenna array 320 can also be arranged in a staggered manner along the second reference axis, which not only has better electrical performance, but also helps to reduce the lateral width and has a more compact structural size.

[0073] The second formation form is: Figure 2 The antenna array 320 is composed of a plurality of second radiation units 321 arranged in two rows along two third reference axes (not shown). Of course, the plurality of second radiation units 321 in the antenna array 320 can also be arranged in a staggered manner along the second reference axis; in addition, the two rows in the antenna array 320 can be arranged in a staggered manner; in addition to having better electrical performance, it is also beneficial to reduce the lateral width and have a more compact structural size.

[0074] In the above-mentioned first and second array forms, when the second radiation unit 321 is a low-frequency radiation unit 322, its operating frequency band is 690~960MHz; and when the second radiation unit 321 is a high-frequency radiation unit 323, its operating frequency band is 1.4~2.2GHz or 1.7~2.7GHz, so as to achieve corresponding signal coverage.

[0075] In the above-mentioned first and second array forms, refer to Fig.11 A preferred embodiment is that the spacing d3 between the second radiation unit 321 and the antenna cover 100 is ≤ 1 / 4λ, where λ is the wavelength corresponding to the center frequency of the working frequency band of the second radiation unit 321. This spacing can make the height of the first radiation unit 221a of the Massive MIMO array 220 and the second radiation unit 321 / low-frequency radiation unit 322 of the antenna array 320 of the second antenna system 300 close to each other, which is beneficial to reduce the lateral height h of the antenna cover 100, thereby realizing the miniaturization of the antenna.

[0076] The third formation form is: Figure 3 The antenna array 320 is composed of a plurality of low-frequency radiation units 322 and a plurality of high-frequency radiation units 323 arranged in a row along a fourth reference axis (not shown), wherein some of the high-frequency radiation units 323 are coaxially nested with the low-frequency radiation units 322.

[0077] The fourth array form is: refer to Figure 4 The antenna array 320 is composed of a plurality of low-frequency radiation units 322 and a plurality of high-frequency radiation units 323 arranged in two rows along two fifth reference axes (not shown), wherein some high-frequency radiation units 323 are coaxially nested with the low-frequency radiation units 322. Of course, the two rows in the antenna array 320 can be arranged in a staggered manner; in addition to having better electrical performance, it is also beneficial to reduce the lateral width and have a more compact structural size.

[0078] In the third and fourth array forms mentioned above, the working frequency band of the low-frequency radiation unit 322 is 690~960MHz, and the working frequency band of the high-frequency radiation unit 323 is 1.4~2.2GHz or 1.7~2.7GHz, which can achieve signal coverage of different communication network standards of 4G / 3G / 2G, and is compatible with multi-band array antennas of all standards of 2G, 3G and 4G in mobile communications, which is conducive to the miniaturization of antennas, greatly broadens the application scenarios, can reduce the number of antennas used in base stations, and reduce station deployment costs and operation and maintenance costs.

[0079] In the third and fourth array forms mentioned above, refer to Fig.10 , the spacing d3 between the low-frequency radiation unit 322 and the antenna cover 100 is ≤ 1 / 4λ, where λ is the wavelength corresponding to the center frequency of the working frequency band of the low-frequency radiation unit 322. This spacing can make the first radiation unit 221a of the Massive MIMO array 220 and the second radiation unit 321 / low-frequency radiation unit 322 of the antenna array 320 of the second antenna system 300 at a similar height, which is beneficial to reducing the lateral height h of the antenna cover 100, thereby realizing the miniaturization of the antenna.

[0080] It should be noted that, in each antenna array 320 of the above-mentioned second antenna system 300, the spacing between adjacent second radiating units 321, the spacing between adjacent low-frequency radiating units 322 and high-frequency radiating units 323, the spacing between adjacent low-frequency radiating units 322, the spacing between adjacent high-frequency radiating units 323, and the spacing between two columns can all be designed according to actual needs, and any adjacent radiating units do not interfere with each other, which will not be described in detail here.

[0081] It should be noted that the antenna array 320 may also adopt other existing array forms, and may even adopt other existing smart antenna array forms, which is not limited here.

[0082] It should be noted that the above-mentioned reference axes are all imaginary reference lines.

[0083] Specifically in this embodiment, refer to Fig.10 The first antenna system 200 includes a first power division network (not shown) and a calibration network 230 connected to the Massive MIMO array 220, as well as a filter 240 and an active system RF transceiver / transmitter component 250 (i.e., a T / R component known in the art) connected to the calibration network 230; Fig.11 The second antenna system 300 includes a second power division network (not shown) connected to the antenna array 320 and a phase shifter 330. In practical applications, the active system RF transceiver 250 is further provided with an existing heat dissipation module 400 on the side away from the Massive MIMO array 220.

[0084] It should be noted that, taking the multi-standard fusion array antenna including the first antenna system 200, the 4G antenna system, the 3G antenna system and the 2G antenna system as an example, it should also be understood that the above-mentioned antenna array 320 is a general term for the antenna arrays of the 4G antenna system, the 3G antenna system and the 2G antenna system. The antenna array 320 can be connected to different network systems to form different antenna systems, thereby being applied to the corresponding network standards.

[0085] Specifically in this embodiment, refer to Figures 1 to 4 The multi-standard fusion array antenna also includes a first reflector 210 and a second reflector 310 arranged in sequence along the longitudinal direction of the antenna cover 100, the Massive MIMO array 220 is arranged on the first reflector 210, and the antenna array 320 is arranged on the second reflector 310.

[0086] As a preferred embodiment of the present invention, when the multi-standard fusion array antenna is used to realize the integration of two or more different antenna systems, there may be no reused parts between the first antenna array 320 and the second antenna array 320. The first reflector 210 and the second reflector 310 are preferably as shown in the attached Figures 1 to 4 As shown, they are arranged side by side up and down to better utilize the installation space of the antenna cover 100. It should be understood that in this embodiment, the Massive MIMO array 220 of the first antenna system 200 and the antenna array 320 of the second antenna system 300 should be at a certain distance.

[0087] As a preferred embodiment of the present invention, the first reflector 210 and the second reflector 310 are detachably connected together. This can further facilitate the flexible configuration of different antenna systems according to actual needs to meet the needs of different product combinations. It is also possible to reversely change the structure of the assembled multi-standard fusion array antenna after applying any application scenario compatible with two or more networks, including the Massive MIMO array 220 antenna system, to adapt to other application scenarios compatible with the corresponding networks, greatly improving the convenience of maintenance and flexibility of the multi-standard fusion array antenna, and making it easier to reuse existing base stations to significantly simplify base station configuration, further saving resources, reducing the difficulty of network planning, and reducing the investment and use costs of operators. Specifically in this embodiment, the first reflector 210 and the second reflector 310 can be detachably connected together through an existing connecting component. The connecting component can be an existing clamp structure, a hinge structure or other existing connecting structure.

[0088] As a preferred embodiment of the present invention, refer to Figures 1 to 4 The first reflector 210 and the second reflector 310 are integrally formed to form a common reflector. That is, the common reflector serves as a common reflector for the first antenna array 320 and the second antenna array 320. Such a structure has better structural compactness while ensuring performance indicators, and is relatively easy to manufacture and install. The above-mentioned common reflector is preferably designed to be rectangular so as to maximize the use of the space of the common reflector.

[0089] As a preferred embodiment of the present invention, refer to Fig.11 The radome 100 is surrounded by a first side wall 110 , a second side wall 120 , a third side wall 130 and a fourth side wall 140 which are sequentially arranged along the circumferential direction.

[0090] 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 to the second side wall 120, the second wall body is spaced apart from the first wall body and connected to the fourth side wall 140, and the first reflector 210 and the second reflector 310 are both detachably connected between the first wall body and the second wall body. Such a structure is more convenient for reconfiguring the multi-standard fusion array antenna according to actual needs to be applied to different network requirements.

[0091] Of course, refer to Fig.10 The antenna cover 100 may also include only the first side wall 110, the second side wall 120 and the fourth side wall 140, and the first reflector 210 may include a bottom wall (not shown) for arranging the Massive MIMO array 220 and two side walls (not shown) extending along the lateral sides of the bottom wall. Fig.11The second reflective plate 310 may also include a bottom wall (not shown) for setting the antenna array 320 and two side walls (not shown) bent and extended along the lateral sides of the bottom wall, and the above-mentioned two side walls respectively correspond to the second side wall 120 and the fourth side wall 140 and are connected and fixed to each other.

[0092] The above-mentioned spacing d3 between the first radiation unit 221a and the antenna cover 100 specifically refers to the spacing d3 between the first radiation unit 221a and the first side wall 110 of the antenna cover 100; the above-mentioned spacing d3 between the second radiation unit 321 and the antenna cover 100 refers to the spacing d3 between the second radiation unit 321 and the first side wall 110 of the antenna cover 100; the above-mentioned spacing d3 between the low-frequency radiation unit 322 and the antenna cover 100 specifically refers to the spacing d3 between the low-frequency radiation unit 322 and the first side wall 110 of the antenna cover 100.

[0093] The first radiation unit 221a, the second radiation unit 321, the high frequency radiation unit 323 and the low frequency radiation unit 322 are preferably dual polarization radiation units to improve the stability of communication performance. Specifically in this embodiment, the dual polarization radiation unit can be a common ±45° polarization unit or a vertical / horizontal polarization unit, which is not limited here.

[0094] The first radiation unit 221a, the second radiation unit 321, the high-frequency radiation unit 323 and the low-frequency radiation unit 322 may be arranged in a three-dimensional spatial structure, or may adopt an existing planar printed radiation unit (such as a microstrip dipole), a patch dipole or a half-wave dipole, etc.; or may be a combination of any of the above-mentioned types of antenna dipoles. When a three-dimensional spatial structure is adopted, the shapes of the high-frequency radiation unit 323 and the low-frequency radiation unit 322 may be square, diamond, circular, elliptical, cross-shaped, etc., which can be flexibly selected according to actual needs.

[0095] It should be noted that the connection method between the Massive MIMO array 220, the first power division network, the calibration network 230, the filter 240 and the active system RF receive / transmit component 250 in the above-mentioned multi-standard fusion array antenna can refer to the existing technology; the connection method between the antenna array 320, the second power division network and the phase shifter 330 can refer to the existing technology; and it should be understood that for the above-mentioned multi-standard fusion array antenna, its first antenna system 200 should also include the existing heat dissipation module 400 and other structures, and the above-mentioned first power division network, calibration network 230, filter 240 and active system RF receive / transmit component 250, second power division network, phase shifter 330 and heat dissipation module 400 and other structures or the connection method between structures can refer to the existing technology, so they are not described in detail.

[0096] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-standard fusion array antenna, It is characterized in that include: The first antenna system with Massive MIMO array; A second antenna system having an antenna array and working in a set network standard, wherein the second antenna system is a passive antenna system, and the set network standard is at least one of a 4G network standard, a 3G network standard, and a 2G network standard; The first antenna system and the second antenna system share a common radome; The Massive MIMO array includes: A plurality of sub-arrays, wherein the plurality of sub-arrays are arranged along a plurality of first reference axes to form an M×N array, wherein M and N are both natural numbers ≥ 1; If M is the number of columns and N is the number of rows, then: M ≥ 4, N ≥ 1; The sub-array comprises at least one first radiation unit arranged at intervals along the first reference axis; the number of first radiation units of at least one of the sub-arrays is different from the number of first radiation units of the remaining sub-arrays; When the operating frequency band of the first radiation unit is greater than 1 GHz, the sub-array includes at least two of the first radiation units; and when the operating frequency band of the first radiation unit is less than 1 GHz, the sub-array includes one of the first radiation units; The distance between the first radiation unit and the antenna cover is ≤1 / 4λ, wherein λ is the wavelength corresponding to the center frequency of the working frequency band of the first radiation unit.

2. The multi-standard fusion array antenna according to claim 1, It is characterized in that The inter-column spacing of the Massive MIMO array is 0.4-0.6λ; The row spacing between two adjacent first radiation units is 0.5-0.9λ; Among them, λ is the wavelength corresponding to the center frequency of the working frequency band of the first radiation unit.

3. The multi-standard fusion array antenna according to claim 1, It is characterized in that The antenna array comprises a plurality of second radiation units arranged in a row along a second reference axis; Alternatively, the antenna array is composed of a plurality of the second radiation units arranged in two rows along two third reference axes; Alternatively, the antenna array is composed of a plurality of low-frequency radiation units and a plurality of high-frequency radiation units arranged in a row along a fourth reference axis, wherein some of the high-frequency radiation units are coaxially nested with the low-frequency radiation units; Alternatively, the antenna array is composed of a plurality of low-frequency radiating units and a plurality of high-frequency radiating units arranged in two rows along two fifth reference axes, wherein some of the high-frequency radiating units are coaxially nested with the low-frequency radiating units.

4. The multi-standard fusion array antenna according to claim 3, It is characterized in that 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.

5. The multi-standard fusion array antenna according to claim 3, It is characterized in that The working frequency band of the low-frequency radiation unit is 690-960 MHz, and the working frequency band of the high-frequency radiation unit is 1.4-2.2 GHz or 1.7-2.7 GHz.

6. The multi-standard fusion array antenna according to claim 3, It is characterized in that The distance between the second radiation unit and the radome ≤ 1 / 4λ, where λ is the wavelength corresponding to the center frequency of the operating frequency band of the second radiation unit.

7. The multi-mode fusion array antenna according to claim 3, wherein, The distance between the low-frequency radiation unit and the radome ≤ 1 / 4λ, where λ is the wavelength corresponding to the center frequency of the operating frequency band of the low-frequency radiation unit.

8. The multi-mode fusion array antenna according to claim 1, wherein, The first antenna system further includes a first power distribution network and a calibration network connected to the Massive MIMO array, and a filter and an active system radio frequency transceiver component connected to the calibration network; the second antenna system further includes a second power distribution network and a phase shifter connected to the antenna array.

9. The multi-mode fusion array antenna according to any one of claims 1 to 8, wherein, The multi-mode fusion array antenna further includes a first reflector and a second reflector arranged in sequence along the longitudinal length of the radome, the Massive MIMO array is arranged on the first reflector, and the antenna array is arranged on the second reflector.

10. The multi-mode fusion array antenna according to claim 9, wherein, The first reflector and the second reflector are detachably connected together; Alternatively, the first reflector and the second reflector are integrally formed to form a common reflector.

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