Phased-array antenna array, phased-array antenna system, radar and movable platform

Abstract

The utility model relates to the technical field of antennas, and provides a phased-array antenna array, a phased-array antenna system, a radar and a movable platform, the phased-array antenna array comprises a plurality of antennas, each antenna comprises a feeding point and a plurality of oscillators, the plurality of oscillators are connected through feeder lines, and the feeder lines are connected with the phased-array antenna system. One feeding point is located between two adjacent arrays and is connected with the phased array chip, and the radiation power of each antenna and the phase difference between the antennas are adjusted through the phased array chip, so that beam aggregation and time division multiplexing of the phased array antenna array are realized. The phased-array antenna array comprises a plurality of antennas, and each antenna is connected with the phased-array chip only through one feeding point, so that the number of the phased-array chips can be greatly reduced, the antenna system can be simplified, and the cost and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a phased array antenna array, a phased array antenna system, a radar and a movable platform. Background Art

[0002] Phased array antenna arrays are commonly used in radar, communication, radio positioning and other fields, and can achieve fast and flexible signal control and processing.

[0003] In the prior art, a phased array antenna array is a square array or circular array formed by arranging multiple array elements, and each array element can independently control the phase and radiation power, thereby realizing the beamforming and directional radiation control of the signal. However, to achieve independent control of each array element, a large number of phased array chips are required, and usually each array element requires its own phased array chip, resulting in extremely high costs and complex antenna systems.

[0004] Therefore, currently phased array antenna arrays, due to their cost and system complexity, can generally only be used in equipment such as military radars and meteorological radars, and are difficult to be widely used in daily industrial fields. Utility Model Content

[0005] The purpose of the present application is to provide a phased array antenna array, a phased array antenna system, a radar and a movable platform to solve the problem that the existing phased array antenna array requires a large number of phased array chips for control, resulting in high cost and manufacturing cost, and complex antenna system.

[0006] In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0007] In a first aspect, an embodiment of the present application provides a phased array antenna array, wherein the phased array antenna array includes a plurality of antennas;

[0008] Each of the antennas comprises a feeding point and a plurality of arrays, the plurality of arrays are connected by a feeder line, and the feeding point is located between two adjacent arrays and connected to the phased array chip;

[0009] The phased array chip is used to adjust the radiation power of each antenna and the phase difference between the antennas to achieve beam aggregation and time-division multiplexing of the phased array antenna array.

[0010] Optionally, the multiple antennas are arranged at equal intervals, and a line connecting the same positions of the multiple antennas forms a straight line.

[0011] Optionally, a line connecting the same positions of the multiple antennas forms an angle with a horizontal direction or a vertical direction of an antenna substrate, and the antenna substrate is used to set the phased array antenna array.

[0012] Optionally, the angle is 45°.

[0013] Optionally, the distance between two adjacent antennas on the line connecting the same positions is Wherein, λ represents the wavelength of the electromagnetic wave in the working frequency band of the antenna.

[0014] Optionally, the number of the multiple antennas is an even number, and the number of the multiple arrays in each of the antennas is an even number.

[0015] Optionally, there is one phased array chip, and the feeding point of each antenna is connected to the phased array chip.

[0016] Optionally, there are multiple phased array chips, and each phased array chip is connected to the feeding points of one or more antennas.

[0017] Optionally, the antenna is symmetrical about the center, and the size of each array gradually decreases from the middle position to the two ends of the antenna; or,

[0018] The antenna is symmetrical about the center, and the sizes of the arrays are the same.

[0019] Optionally, the antenna is fed from the back.

[0020] In a second aspect, an embodiment of the present application further provides a phased array antenna system, which includes a phased array chip and the phased array antenna array in the above-mentioned first aspect.

[0021] In a third aspect, an embodiment of the present application further provides a radar, which includes the phased array antenna system in the above-mentioned second aspect.

[0022] In a fourth aspect, an embodiment of the present application further provides a movable platform, which includes the radar in the third aspect above.

[0023] Compared with the prior art, the present application provides a phased array antenna array, a phased array antenna system, a radar and a movable platform, wherein the phased array antenna array includes multiple antennas, each antenna includes a feed point and multiple arrays, the multiple arrays are connected by feed lines, a feed point is located between two adjacent arrays and is connected to a phased array chip, and the radiation power of each antenna and the phase difference between each antenna are adjusted by the phased array chip, thereby realizing beam aggregation and time-division multiplexing of the phased array antenna array. Since the phased array antenna array includes multiple antennas, each antenna is connected to the phased array chip only by one feed point, which can greatly reduce the number of phased array chips, thereby simplifying the antenna system and reducing costs and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a square array of phased array antenna arrays provided by the prior art.

[0025] Figure 2 A schematic diagram of the structure of a circular array of phased array antenna arrays provided by the prior art.

[0026] Figure 3 A waveform diagram of a phased array antenna array provided by the prior art.

[0027] Figure 4 A schematic diagram of the structure of a phased array antenna array provided in an embodiment of the present application.

[0028] Figure 5 Another schematic diagram of the structure of the phased array antenna array provided in an embodiment of the present application.

[0029] Figure 6 A schematic diagram of another structure of a phased array antenna array provided in an embodiment of the present application.

[0030] Figure 7 The antenna pattern of a single antenna provided in an embodiment of the present application.

[0031] Figure 8 An antenna pattern of multiple antennas aggregated is provided in an embodiment of the present application.

[0032] Fig. 9 Another antenna pattern of multiple antenna aggregation provided in an embodiment of the present application.

[0033] Fig.10 Another antenna pattern of multiple antenna aggregation provided in an embodiment of the present application.

[0034] Icon: 100-phased array antenna array; 110-antenna; 111-array; 112-feeder. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0039] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042] Phased array antenna arrays are commonly used in radar, communication systems and other wireless communication applications. They can realize functions such as electronic scanning, beam forming and beam pointing of beams. Their advantages include fast beam adjustment, high-precision target positioning and strong anti-interference ability.

[0043] In the prior art, a phased array antenna array is an array composed of multiple array elements, usually Figure 1 The square array shown or Figure 2 The circular array, Figure 1 and Figure 2 The yellow boxes in the figure are array elements. These array elements can independently control the phase and amplitude to achieve beamforming and directional radiation control of the signal. For example, by controlling the phase difference of each array element, the direction of the waveform can be adjusted. Figure 3 shown.

[0044] However, to achieve independent control of each array element, a large number of phased array chips are required. Usually, each array element needs its own phased array chip, which leads to extremely high cost and complex antenna system. Therefore, due to its cost and system complexity, phased array antenna arrays can only be used in military radars and weather radars and other equipment, and are difficult to be widely used in daily industrial fields.

[0045] In order to solve the above problems existing in the existing phased array antenna array, the embodiment of the present application provides a phased array antenna array, which includes multiple antennas, each antenna is connected to the phased array chip through only one feeding point, thereby greatly reducing the number of phased array chips, thereby simplifying the antenna system and reducing costs and manufacturing costs. A detailed introduction is given below.

[0046] Please refer to Figure 4 The phased array antenna array 100 includes a plurality of antennas 110 , each antenna includes a feeding point (not shown in the figure) and a plurality of arrays 111 , and the plurality of arrays are connected via a feed line 112 .

[0047] A feeding point is located between two adjacent arrays 111, for example, between the first array 111 and the second array 111 from top to bottom, or between the second array 111 and the third array 111, etc. At the same time, the feeding point is connected to the phase-controlled chip (not shown in the figure).

[0048] The phased array chip is used to adjust the radiation power of each antenna and the phase difference between each antenna to achieve beam aggregation and time-division multiplexing of the phased array antenna array.

[0049] Optionally, the feed line 112 may be a straight line or a non-straight line, for example, an arc or a broken line, and this embodiment does not impose any limitation on this.

[0050] In this embodiment, the feeding mode of the antenna 110 is back-feeding, that is, the feeding point of the antenna 110 is set at the back of the antenna 110. Back-feeding can reduce radiation loss, reduce interference between the radiating element and the feeder, simplify the antenna structure, and improve the directivity and radiation efficiency of the antenna, thereby improving the performance and characteristics of the antenna to a certain extent.

[0051] As an optional implementation, there is one phased array chip, and the feeding point of each antenna 110 is connected to the phased array chip. The phased array chip is used to adjust the radiation power and phase of each antenna.

[0052] As another optional implementation, there are multiple phased array chips, each of which is connected to the feeding point of one or more antennas 110 , and the phased array chip is used to adjust the radiation power and phase of the one or more antennas 110 connected to itself.

[0053] It should be noted that the number of phased array chips and the connection method with the feeding point of each antenna 110 can be flexibly set according to actual needs, and this embodiment does not impose any restrictions on this. For example, if the radiation power and phase of a certain antenna 110 need to be controlled separately, a phased array chip is connected through the feeding point of the antenna 110. For another example, if the radiation power and phase of multiple antennas 110 need to be controlled simultaneously, the feeding points of multiple antennas 110 are connected to one phased array chip.

[0054] In the existing phased array antenna array, each array element requires its own phased array chip, resulting in extremely high cost and manufacturing cost, and a complex antenna system. The phased array antenna array 100 provided in the embodiment of the present application includes multiple antennas 110, each antenna 110 includes multiple arrays 111, and each antenna 110 is connected to the phased array chip only through one feeding point, thereby simplifying the control of the phase and radiation power of each array element in the prior art to control the radiation power of each antenna and the phase difference between each antenna, solving the problem that each array element of the existing phased array antenna array requires a phased array chip, thereby greatly reducing the number of phased array chips, and further simplifying the antenna system, reducing cost and manufacturing cost.

[0055] Optionally, in the phased array antenna array 100 , the number of the plurality of antennas 110 may be an even number, and the number of the plurality of array elements 111 in each antenna 110 may also be an even number.

[0056] It can be understood that there are an even number of arrays 111 in a single antenna 110 and an even number of antennas in the phased array antenna array 100, so that the phased array antenna array 100 can be arranged symmetrically. The symmetrically arranged antenna array can achieve a uniform distribution of radiation characteristics, while providing better spatial consistency and generally having better anti-interference performance, thereby improving the performance and reliability of the phased array antenna array 100.

[0057] At the same time, in order to further improve the performance and reliability of the phased array antenna array 100, each antenna 110 in the phased array antenna array 100 is usually designed to be symmetrical about the center.

[0058] In an optional implementation, Figure 4 As shown, each antenna 110 in the phased array antenna array 100 includes a plurality of array elements 111. The size of each array element 111 gradually decreases from the middle position to the two ends of the antenna 110, and the array elements 111 are symmetrical about the midline.

[0059] In practice, the antenna 110 may generate sidelobe levels during operation, affecting the performance and reliability of the phased array antenna array 100. By setting the multiple arrays 111 in the antenna 110 to gradually decrease in size from the middle to the two ends, the sidelobe level can be reduced.

[0060] Each antenna 110 in the phased array antenna array 100 includes multiple arrays 111. In addition to the above-mentioned setting method of gradually decreasing in size from the middle to the two ends, the sizes of the arrays 111 can also be set to be the same, and this embodiment does not impose any limitation on this.

[0061] In an optional implementation, in order to enhance the radiation efficiency of the phased array antenna array 100 and improve the effects of signal reception and transmission, multiple antennas 110 in the phased array antenna array 100 are arranged at equal intervals, and the same position connection line of the multiple antennas 110 forms an angle with the horizontal direction or the vertical direction of the antenna substrate, and the antenna substrate is used to set the phased array antenna array.

[0062] In practice, the phased array antenna array 100 is disposed on an antenna substrate, and multiple antennas 110 are arranged at equal intervals. They can be arranged at equal intervals in the reference direction (horizontal direction or vertical direction) of the antenna substrate, or they can be arranged at equal intervals on the same position connecting line of multiple antennas 110. This embodiment does not impose any restrictions on this.

[0063] Optionally, the plurality of antennas 110 in the phased array antenna array 100 are arranged at equal intervals, and the interval between two adjacent antennas 110 in the reference direction (horizontal direction or vertical direction) of the antenna substrate may be: λ represents the wavelength of the electromagnetic wave in the operating frequency band of the antenna 110 .

[0064] The multiple antennas 110 in the phased array antenna array 100 are arranged at equal intervals. Firstly, it can ensure that the signal is evenly distributed in the coverage area, thereby maximizing the signal coverage range; secondly, it can reduce mutual interference between the antennas 110 and improve the performance and reliability of the communication system; thirdly, the layout of the antennas arranged at equal intervals is more neat and standardized, which can be more convenient and efficient during installation and maintenance.

[0065] The same position connection lines of multiple antennas 110 form a straight line. The same position connection line here can be a center connection line, an end connection line, a head end connection line, or a feeding point connection line, etc. This embodiment does not impose any limitation on this.

[0066] For example, see Figure 5 , multiple antennas 110 are arranged at equal intervals in the horizontal direction, and the interval between two adjacent antennas 110 in the horizontal direction (as shown by d1 in the figure) can be Furthermore, the ends of the plurality of antennas 110 are connected to form a straight line l.

[0067] The same position of multiple antennas 110 is connected to form a straight line, which forms an angle with the horizontal direction or the vertical direction of the antenna substrate, that is, the multiple antennas 110 are placed obliquely relative to the antenna substrate, and each antenna 110 includes multiple arrays 111, that is, the arrays 111 in the phased array antenna array 100 are placed obliquely. The radiation energy of the antenna is positively correlated with the length and width of the antenna array. Under the same number of arrays, the length and width of the antenna array with oblique arrays are longer or wider than those of the antenna array with square arrays and circular arrays, so that the array energy can be more effectively utilized and the number of arrays can be reduced to a minimum. That is, the arrays 111 in the phased array antenna array 100 are placed obliquely, and compared with the existing square arrays and circular arrays, the size of the phased array antenna array 100 can be maximized under the same number of arrays, so that the array energy can be more effectively utilized and the gain of the antenna can be improved.

[0068] Therefore, in order to make the size of the phased array antenna array 100 as large as possible without changing the number of arrays, the multiple antennas 110 in the phased array antenna array 100 are placed obliquely. That is, the same position connection line of the multiple antennas 110 forms an angle with the reference direction, and the reference direction can be the horizontal direction or the vertical direction of the antenna substrate used to set the phased array antenna array 100. In this way, the overall arrangement direction of the phased array antenna array 100 forms an angle with the horizontal direction or the vertical direction of the antenna substrate, so that a larger antenna array with a smaller number of antennas is formed, so as to achieve a larger antenna size with the same number of arrays, improve the gain of the antenna, and there is no interference between the multiple antennas 110.

[0069] For example, see Figure 6 , the end connecting line l of the plurality of antennas 110 forms an angle a with the horizontal direction.

[0070] It should be noted that there is no restriction on the angle formed by the line connecting the same positions of the plurality of antennas 110 and the reference direction, as long as it is ensured that the antennas 110 do not interfere with each other.

[0071] Considering that the spacing between adjacent antennas 110 is closer The greater the gain of the multiple antennas 110 after aggregation, otherwise the side lobes will increase and the maximum gain will decrease.

[0072] Therefore, in order to ensure that the spacing between adjacent antennas 110 is close The angle between the same position connecting line of multiple antennas 110 and the reference direction can be 45°. In this way, assuming that the distance between two adjacent antennas 110 in the phased array antenna array 100 in the reference direction is Then, since the angle between the connection line of the same position of the plurality of antennas 110 and the reference direction is 45°, the distance between two adjacent antennas 110 on the connection line of the same position can be as large as Close The gain of the multiple antennas 110 after aggregation can be increased as much as possible.

[0073] For example, see Figure 6 , assuming that the horizontal distance d1 between two adjacent antennas 110 is The angle a formed by the end connection line l of the plurality of antennas 110 and the horizontal direction is 45°, and the distance d2 between two adjacent antennas 110 on the end connection line l can be calculated to achieve

[0074] In addition, antenna theory shows that the gain of an antenna is proportional to the length and width of the antenna. By setting the angle between the lines connecting the same positions of multiple antennas 110 and the reference direction to 45°, the size of the phased array antenna array 100 can be maximized with the same number of arrays.

[0075] The phased array antenna array 100 provided in the embodiment of the present application can maximize the gain of the antennas 110 after aggregation by obliquely placing the multiple antennas 110 in the phased array antenna array 100 and making the angle formed by the connecting line of the same position of the multiple antennas 110 and the reference direction (horizontal direction or vertical direction) of the antenna substrate be 45°. On the one hand, it can also maximize the size of the phased array antenna array 100 with the same number of arrays.

[0076] It should be pointed out that in this embodiment Figures 4 to 6The phased array antenna array 100 shown is only an example. In practice, the number of multiple antennas 110 in the phased array antenna array 100, the number of multiple arrays 111 in a single antenna 110, and the arrangement direction of the multiple antennas 110 can all be flexibly set, and this embodiment does not impose any restrictions on this.

[0077] The following is the above Figure 6 The phased array antenna array 100 shown (ie, 6 array elements 111 , 6 antennas 110 , and antennas 110 arranged at an angle of 45°) is subjected to simulation testing.

[0078] First, for the above Figure 6 A single antenna 110 in the phased array antenna array 100 is simulated and tested, and the antenna pattern of the antenna 110 is obtained as shown in FIG. Figure 7 As shown in the figure, the dark line is the E-plane radiation pattern, the light line is the H-plane radiation pattern, the E-plane beam width of a single antenna 110 is about 17°, the H-plane beam width is about 100°, and the maximum gain is about 14.18 dBi.

[0079] For an antenna 110 including a plurality of elements 111, its beam width can also be calculated using the following formula:

[0080]

[0081] Where BW is the beam width, N is the number of arrays, and d is the distance between two adjacent arrays, which is usually φ m Represents the antenna phase angle, usually 0.

[0082] Since the E plane refers to the electric field surface, which is perpendicular to the current direction of the antenna 110, and the H plane is the magnetic field surface, which is parallel to the current direction of the antenna 110, Figure 6 For the single antenna shown, when the E-plane beamwidth and H-plane beamwidth are calculated using the above formula, the array number N is 1 and 6 respectively.

[0083] At the same time, the maximum gain can be calculated by the following formula:

[0084] Maximum gain = unit gain + 10*lg(M)

[0085] The unit gain refers to the gain of a single antenna 110, which is usually 7-8 dBi; and M is the number of antennas.

[0086] Next, for the above Figure 6 The six antennas in the phased array antenna array 100 shown are used to perform a simulation test of beam aggregation, and different antenna radiation patterns are achieved by using different phase differences between antennas in different modes.

[0087] When the six antennas 110 radiate 1W of power at the same time and the phase difference of each antenna 110 is 0°, the antenna beams are aggregated to obtain the antenna pattern as shown in FIG. Figure 8 As shown in the figure, the dark line is the E-plane radiation pattern, the light line is the H-plane radiation pattern, the E-plane beam width is about 17°, the H-plane beam width is about 17°, and the maximum gain is about 21.95dBi.

[0088] When the phase difference of each antenna 110 is -60°, the six antenna beams are aggregated to obtain the antenna pattern as shown below: Fig. 9 As shown in the figure, the dark line is the E-plane radiation pattern, and the light line is the H-plane radiation pattern. The E-plane beam has a trough, the H-plane beam width is about 17°, and the peak angle shifts 13° to the left.

[0089] When the phase difference of each antenna 110 is 60°, the six antenna beams are aggregated to obtain the antenna pattern as shown below: Fig.10 As shown in the figure, the dark line is the E-plane radiation pattern, and the light line is the H-plane radiation pattern. The E-plane beam has a trough, the H-plane beam width is 17°, and the peak angle is shifted to the right by 13°.

[0090] Similarly, Figure 8 to Figure 10 The beam width and maximum gain in the antenna radiation pattern shown can also be calculated according to the beam width formula and maximum gain formula introduced above.

[0091] From the above Figure 7 to Figure 10 It can be clearly seen from the antenna radiation pattern shown that the phased array antenna array 100 provided in this embodiment can achieve beam aggregation and time-division multiplexing of the phased array antenna array by adjusting the radiation power of each antenna and the phase difference between each antenna.

[0092] Based on the above implementation method, an embodiment of the present application also provides a phased array antenna system, which includes a phased array chip and the above-mentioned phased array antenna array 100, and the feeding point of each antenna 110 in the phased array antenna array 100 is connected to the phased array chip through only one feeding point.

[0093] The phased array antenna system may further include an antenna substrate, and the phased array antenna array 100 is disposed on the antenna substrate. This embodiment does not limit the size of the antenna substrate.

[0094] Based on the above implementation, an embodiment of the present application further provides a radar, which includes the above phased array antenna system.

[0095] Based on the above implementation method, the present application also provides a movable platform, which includes the above-mentioned radar. The radar can be unmanned equipment such as drones, unmanned vehicles, unmanned ships, etc., or any other equipment that requires a radar detection function, such as a vehicle with an automatic driving function, a ship with a radar detection function, and other equipment.

[0096] In summary, the present application provides a phased array antenna array, a phased array antenna system, a radar and a movable platform, wherein the phased array antenna array includes multiple antennas, each antenna includes a feed point and multiple arrays, the multiple arrays are connected by feed lines, a feed point is located between two adjacent arrays and is connected to a phased array chip, and the radiation power of each antenna and the phase difference between each antenna are adjusted by the phased array chip, thereby realizing beam aggregation and time-division multiplexing of the phased array antenna array. Since the phased array antenna array includes multiple antennas, each antenna is connected to the phased array chip only by one feed point, which can greatly reduce the number of phased array chips, thereby simplifying the antenna system and reducing costs and manufacturing costs.

[0097] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0098] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A phased array antenna array, characterized in that: The phased array antenna array includes a plurality of antennas; Each of the antennas comprises a feeding point and a plurality of arrays, the plurality of arrays are connected by a feeder line, and the feeding point is located between two adjacent arrays and connected to the phased array chip; The phased array chip is used to adjust the radiation power of each antenna and the phase difference between the antennas to achieve beam aggregation and time-division multiplexing of the phased array antenna array.

2. The phased array antenna array according to claim 1, characterized in that: The multiple antennas are arranged at equal intervals, and a line connecting the same positions of the multiple antennas forms a straight line.

3. The phased array antenna array according to claim 2, characterized in that: The same position connecting line of the multiple antennas forms an angle with the horizontal direction or the vertical direction of the antenna substrate, and the antenna substrate is used to set the phased array antenna array.

4. The phased array antenna array according to claim 3, characterized in that: The angle is 45°.

5. The phased array antenna array according to claim 4, characterized in that: The distance between two adjacent antennas on the line connecting the same positions is Wherein, λ represents the wavelength of the electromagnetic wave in the working frequency band of the antenna.

6. The phased array antenna array according to claim 1, characterized in that: The number of the multiple antennas is an even number, and the number of the multiple elements in each of the antennas is an even number.

7. The phased array antenna array according to claim 1, characterized in that: There is one phased array chip, and the feeding point of each antenna is connected to the phased array chip.

8. The phased array antenna array according to claim 1, characterized in that: There are multiple phased array chips, and each of the phased array chips is connected to the feeding points of one or more antennas.

9. The phased array antenna array according to claim 1, characterized in that: The antenna is symmetrical about the center, and the size of each array gradually decreases from the middle position to the two ends of the antenna; or, The antenna is symmetrical about the center, and the sizes of the arrays are the same.

10. The phased array antenna array according to claim 1, characterized in that: The antenna is fed in a back-side manner.

11. A phased array antenna system, characterized in that: The phased array antenna system comprises a phased array chip and the phased array antenna array according to any one of claims 1 to 10.

12. A radar, characterized in that: The radar comprises the phased array antenna system of claim 11.

13. A movable platform, characterized in that: The movable platform includes the radar of claim 12.

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