Dual-frequency antenna array unit

Abstract

The invention discloses a dual-frequency antenna array unit, which comprises a feeder plate, a balun plate, a first oscillator, at least two second oscillators, a plurality of isolation support plates and a plurality of isolation pieces, and is characterized in that the working frequency band of the first oscillator is different from that of the second oscillators; the lower end of the balun plate is connected to the feeder plate; the first oscillator is connected to the upper end of the Balun plate and is used for receiving signals; the isolation support plate is connected between the feeder plate and the first oscillator so as to form a plurality of radiation areas at intervals, and the feeder plate, the isolation sheet and the isolation support plate enclose to form the radiation areas; the second oscillator is arranged on the feeder line plate and located in the radiation area, the height of the second oscillator is lower than that of the first oscillator, and the second oscillator is used for transmitting signals; through the above structure, the structure of the radiation unit is simple, the oscillators are distributed and arranged to the maximum extent, the weight of the antenna is reduced, and the use requirements of specific scenes are met.

Description

Technical Field

[0001] The present invention relates to the field of antennas, and particularly to a dual-frequency antenna array unit. Background Art

[0002] As an important component in an antenna, the gain of a radiation element directly affects the performance of the antenna, and the performance of the antenna is also affected by the number of radiation elements. In a specific usage environment, it is required that the antenna be lightweight and that the maximum number of transmitting and receiving elements be distributed within a limited space to improve the antenna performance. Therefore, there is an urgent need for a dual-frequency antenna array unit to solve the above problems. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a dual-frequency antenna array unit.

[0004] An embodiment of the present invention solves the technical problem by adopting the following technical solution: A dual-frequency antenna array unit includes a feeder board, a balun board, a first oscillator, at least two second oscillators, and a plurality of isolation support plates. The operating frequency bands of the first oscillator and the second oscillator are different;

[0005] The lower end of the balun board is connected to the feeder board;

[0006] The first oscillator is connected to the upper end of the balun board and is used for receiving signals;

[0007] The isolation support plates are connected between the feeder board and the first oscillator to partition a plurality of radiation regions;

[0008] It further includes a plurality of isolation sheets disposed on the feeder board. The feeder board, the isolation sheets, and the isolation support plates enclose the radiation regions;

[0009] The second oscillator is disposed on the feeder board and within the radiation regions. The height of the second oscillator is lower than that of the first oscillator, and it is used for transmitting signals.

[0010] As one of the preferred embodiments of the present invention, the first oscillator includes 4 radiation arms in a cross structure. The isolation support plates are provided with 4 and are respectively connected between the radiation arms and the feeder board to partition 4 radiation regions. The second oscillators are provided with 4 and correspond to the radiation regions one by one.

[0011] As one of the preferred embodiments of the present invention, a plurality of first slots are provided on the first oscillator, a plurality of second slots are provided on the feeder board, and the upper ends of the isolation support plates are inserted into the first slots and the lower ends are inserted into the second slots.

[0012] As one of the preferred embodiments of the present invention, a plurality of third slots are provided on the feeder board, and the second oscillators are inserted into the third slots.

[0013] As one of the preferred embodiments of the present invention, the isolation support plate and the balun plate are integrally formed.

[0014] As one of the preferred embodiments of the present invention, the feeder board, the balun board, the isolation support plate and / or the first oscillator are made of hydrocarbon plates.

[0015] As one of the preferred embodiments of the present invention, the second oscillator is made of aluminum alloy.

[0016] As one of the preferred embodiments of the present invention, the first oscillator is set as an S-band oscillator, and the second oscillator is set as a C-band oscillator.

[0017] Advantages of the present invention: A dual-band antenna array unit includes a feeder board, a balun board, a first oscillator, at least two second oscillators, a plurality of isolation support plates and a plurality of isolation sheets. The operating frequency bands of the first oscillator and the second oscillator are different; the lower end of the balun board is connected to the feeder board; the first oscillator is connected to the upper end of the balun board for receiving signals; the isolation support plate is connected between the feeder board and the first oscillator to separate a plurality of radiation regions, and the feeder board, the isolation sheet and the isolation support plate enclose the radiation regions; the second oscillator is arranged on the feeder board and within the radiation regions, and the height of the second oscillator is lower than that of the first oscillator for transmitting signals; through the above structure, the structure of the radiation unit can be made simple, and the oscillators can be arranged in the maximum distribution and arrangement, and the weight of the antenna can be reduced to meet the use requirements of specific scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of a dual-band antenna array unit;

[0020] Figure 2 is a schematic structural diagram of the feeder board;

[0021] Figure 3 is a schematic structural diagram of the first oscillator, the balun board and the isolation support plate;

[0022] Figure 4 is a schematic structural diagram of the first oscillator;

[0023] Figure 5 is a schematic structural diagram of the second oscillator;

[0024] Figure 6 is a schematic structural diagram of the isolation support plate;

[0025] Figure 7 is a schematic structural diagram of the balun board;

[0026] Figure 8 It is a schematic structural diagram of the isolation sheet. Specific embodiments

[0027] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0028] In the description of the present invention, the meaning of "a plurality" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the present number, and understandings such as "above", "below", and "within" include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0029] In the description of the present invention, it should be understood that regarding the orientation description, such as the orientation or positional relationship indicated by "up", "down", "front", "back", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly defined, words such as "arrangement", "installation", and "connection" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, and can also be integrally formed; they can be mechanically connected; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0031] Refer to Figures 1 to 8 , a dual - frequency antenna array unit, comprising a feeder board 10, a balun board 20, a first oscillator 30, at least two second oscillators 40, and a plurality of isolation support plates 50. The operating frequency band of the first oscillator 30 is different from that of the second oscillator 40;

[0032] The lower end of the balun board 20 is connected to the feeder board 10;

[0033] The first oscillator 30 is connected to the upper end of the balun board 20 for receiving signals;

[0034] The isolation support plate 50 is connected between the feeder board 10 and the first oscillator 30 to partition a plurality of radiation regions 60;

[0035] The second oscillator 40 is disposed on the feeder board 10 and within the radiation area 60, and the height of the second oscillator 40 is lower than that of the first oscillator 30 for transmitting signals.

[0036] Referring to Figure 1 , in the present invention, preferably, the first oscillator 30 includes 4 radiation arms 31 in a cross structure, and 4 isolation support plates 50 are provided and are respectively connected between the radiation arms 31 and the feeder board 10 to partition 4 radiation areas 60, and 4 second oscillators 40 are provided and correspond to the radiation areas 60 one by one.

[0037] Specifically, the 4 radiation arms 31 form the dual-polarized first oscillator 30. A plurality of hole positions are prefabricated on the feeder board 10. During assembly, the 4 isolation support plates 50 are installed in the corresponding hole positions on the feeder board 10 so that 4 radiation areas 60 are partitioned on the feeder board 10, and the balun board 20 is installed in the corresponding hole positions on the feeder board 10. Then, the 4 second oscillators 40 are installed within the radiation areas 60 on the feeder board 10, and then the first oscillator 30 is connected to the balun board 20 and the isolation support plates 50. Among them, an isolation circuit 51 is provided on the isolation support plates 50, so that the isolation support plates 50 not only play a role in supporting and elevating the first oscillator 30, but also play a role in signal isolation between the second oscillators 40. By designing the support piece of the first oscillator 30 and the isolation piece between the second oscillators 40 into one body, space can be saved, which is not only beneficial to the antenna layout, but also can reduce the weight of the antenna; the isolation support plates 50 are connected between the first oscillator 30 and the feeder board 10, so that the height of the first oscillator 30 is higher than that of the second oscillator 40, thereby reducing the mutual interference between the signal reception of the first oscillator 30 and the signal transmission of the second oscillator 40.

[0038] Referring to Figures 1 - 6 , in some embodiments, the second oscillator 40 is made of aluminum alloy. The second oscillator 40 uses aluminum alloy material and is processed by a sheet metal stamping process, with surface electroplating, and welding between components can be performed; the welded feeder board 10, balun board 20, isolation support plates 50 and / or the first oscillator 30 are made of hydrocarbon board, with copper plating on the surface, and welding between components can be performed. The aluminum alloy and hydrocarbon board have low density, which is beneficial to reducing the weight of the antenna.

[0039] Referring to Figures 1 - 4 、 Figure 6, in some embodiments, a plurality of first slots 71 are provided on the first oscillator 30, and a plurality of second slots 72 are provided on the feeder board 10. The first pins 52 at the upper end of the isolation support board 50 are inserted into the first slots 71, and the lower ends are inserted into the second slots 72. A plurality of third slots 73 are provided on the feeder board 10, and the second pins 41 at the lower end of the second oscillator 40 are inserted into the third slots 73. Preferably, the second pins 41 are formed by stamping and then bending the sheet metal of the second oscillator 40, which can improve production efficiency and reduce production costs at the same time. In a further embodiment, a fourth slot 74 is provided on the feeder board 10, and the lower end of the balun board 20 is inserted into the fourth slot 74. A fifth slot 75 is provided in the middle of the first oscillator 30, and the third pins 21 at the upper end of the balun board 20 are inserted into the fifth slot 75.

[0040] In some embodiments, the isolation support board 50 and the balun board 20 are integrally formed.

[0041] In some embodiments, a dual-frequency antenna array unit further includes a plurality of isolation sheets 80 provided on the feeder board 10. The feeder board 10, the isolation sheets 80, and the isolation support board 50 enclose a radiation area 60. By providing the isolation sheets 80, the isolation degree of the radiation area 60 where the second oscillator 40 is located is further improved.

[0042] In some embodiments, the first oscillator 30 is set as an S-band oscillator, and the second oscillator 40 is set as a C-band oscillator.

[0043] The advantages of the present invention are as follows: Through the above structure, the structure of the radiation unit can be made simple, and the oscillators can be arranged in a distributed manner to the maximum extent, and the weight of the antenna can be reduced to meet the use requirements of specific scenarios.

[0044] Of course, the present invention is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dual-band antenna array unit, characterized in that: It includes a feeder board (10), a balun board (20), a first oscillator (30), at least two second oscillators (40), and several isolation support plates (50). The operating frequency band of the first oscillator (30) is different from that of the second oscillator (40). The lower end of the balun board (20) is connected to the feeder board (10). The first oscillator (30) is connected to the upper end of the balun board (20) and is used to receive signals. The isolation support plates (50) are connected between the feeder board (10) and the first oscillator (30) to partition several radiation regions (60). It further includes several isolation sheets (80) provided on the feeder board (10). The feeder board (10), the isolation sheets (80), and the isolation support plates (50) enclose the radiation regions (60). The second oscillator (40) is provided on the feeder board (10) and is located within the radiation regions (60). The height of the second oscillator (40) is lower than that of the first oscillator (30), and it is used to transmit signals.

2. The dual-band antenna array unit according to claim 1, characterized in that: The first oscillator (30) includes 4 radiation arms (31) in a cross structure. The isolation support plates (50) are provided in 4 numbers and are respectively connected between the radiation arms (31) and the feeder board (10) to partition 4 of the radiation regions (60). The second oscillators (40) are provided in 4 numbers and correspond to the radiation regions (60) one by one.

3. A dual-band antenna array unit according to claim 1, characterized in that: Several first slots (71) are provided on the first oscillator (30), and several second slots (72) are provided on the feeder board (10). The upper ends of the isolation support plates (50) are inserted into the first slots (71), and the lower ends are inserted into the second slots (72).

4. A dual-frequency antenna array unit according to claim 1, characterized in that: Several third slots (73) are provided on the feeder board (10), and the second oscillators (40) are inserted into the third slots (73).

5. A dual-frequency antenna array unit according to claim 1, characterized in that: The isolation support plates (50) and the balun board (20) are integrally formed.

6. The dual-band antenna array unit according to claim 1, characterized in that: The feeder board (10), the balun board (20), the isolation support plates (50), and / or the first oscillator (30) are made of hydrocarbon plates.

7. A dual-band antenna array unit according to claim 1, characterized in that: The second oscillator (40) is made of aluminum alloy.

8. A dual-band antenna array unit according to claim 1, characterized in that: The first oscillator (30) is set as an S-band oscillator, and the second oscillator (40) is set as a C-band oscillator.

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