Hybrid multi-beam antenna array structure

Abstract

The utility model discloses a hybrid multi-beam antenna array structure, and aims to solve the problems of complex layout, poor directional diagram indexes of two frequency bands, large number of arrays and high cost of the conventional antenna array. The structure comprises a reflecting plate, two columns of first intermediate frequency oscillator units, four columns of second intermediate frequency oscillator units and two columns of low frequency oscillator units are installed on the upper surface of the reflecting plate, and the two columns of first intermediate frequency oscillator units are located on the sides, away from each other, of the two columns of low frequency oscillator units. The four columns of second intermediate frequency oscillator units are located on the sides, close to each other, of the two columns of low frequency oscillator units. The hybrid multi-beam antenna array is concise in layout, adopts a Butler matrix mode, adopts four rows of parallel oscillators in parallel and horizontal staggered array formation for double beams, adopts bridge connection, has few cables and few welding spots, adopts PCB planar oscillators to be embedded in an intermediate-frequency array for low frequency, and meanwhile, two rows of conventional beams are arranged on two sides at 65 degrees, so that the array gain is improved, the number of the oscillators is reduced, and the cost is reduced. The production is easy and the cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model belongs to base station antenna technical field, concretely relates to a kind of hybrid multi-beam antenna array structure. BACKGROUND

[0002] With the high-speed development of mobile communication technology, antenna technology is also progressing, currently, electrically adjustable antenna has been widely applied in communication field.Electrically adjustable antenna is a kind of radio frequency transmitting and receiving device corresponding to mechanical antenna, can use electronic control to adjust the antenna down angle.Electrically adjustable antenna compared with mechanical antenna, with the characteristics of simple adjustment, high adjustment precision, since it does not need maintenance personnel to directly carry out mechanical operation, so it can also adjust the down angle of antenna in the working state of antenna, and multi-beam antenna array can work in two frequency bands even multiple frequency bands, since it has the advantages of relatively small size, sky sharing, low cost, low site requirement, so it becomes the first choice of most operators.

[0003] Currently, the hybrid multi-beam antenna array of 698-960MHz and 1710-2690MHz exists mutual influence between low frequency and medium frequency, which leads to the difference of directional diagram index of two frequency bands, the 698-960MHz frequency band is 65 degree lobe width, four medium frequency 1727MHz frequency bands are also 65 degree antenna, affected by high frequency array, horizontal plane wave width diverges wide, the 1710-2690MHz frequency band is 33 degree lobe width, and the beam pointing is 26 degrees, which leads to the use of multiple array elements and high cost. CONTENT OF THE UTILITY MODEL

[0004] (1) technical problem to be solved

[0005] In view of the deficiency of prior art, the purpose of the utility model is to provide a kind of hybrid multi-beam antenna array structure, which aims at solving the problems of existing antenna array, such as complex layout, the difference of directional diagram index of two frequency bands, the use of multiple array elements and high cost.

[0006] (2) technical scheme

[0007] In order to solve the above technical problems, the utility model provides a kind of hybrid multi-beam antenna array structure, which includes reflecting plate, the upper surface of reflecting plate is provided with two rows of first medium frequency vibrator units, four rows of second medium frequency vibrator units and two rows of low frequency vibrator units, two rows of first medium frequency vibrator units are located on the side far away from two rows of low frequency vibrator units, four rows of second medium frequency vibrator units are located on the side close to two rows of low frequency vibrator units, and first medium frequency vibrator unit, second medium frequency vibrator unit and low frequency vibrator unit are staggered distribution.

[0008] Preferably, the number of each column of first medium frequency vibrator unit and second medium frequency vibrator unit is thirty-two, and the number of each column of low frequency vibrator unit is eight.

[0009] Further, the distance between the left side of the reflecting plate and the first intermediate frequency vibrator unit is less than the distance between the right side of the reflecting plate and the first intermediate frequency vibrator unit, and the distance between the left side of the reflecting plate and the low frequency vibrator unit and the second intermediate frequency vibrator unit is greater than the distance between the right side of the reflecting plate and the low frequency vibrator unit and the second intermediate frequency vibrator unit.

[0010] Further, the first intermediate frequency vibrator unit and the second intermediate frequency vibrator unit are smaller than the height of the low frequency vibrator unit.

[0011] Further, the first intermediate frequency vibrator unit and the second intermediate frequency vibrator unit are smaller than the height of the low frequency vibrator unit.

[0012] Further, the first intermediate frequency vibrator unit and the second intermediate frequency vibrator unit are smaller than the height of the low frequency vibrator unit.

[0013] Further, the first intermediate frequency vibrator unit and the second intermediate frequency vibrator unit are smaller than the height of the low frequency vibrator unit.

[0014] (3) Advantageous effects

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The mixed multi-beam antenna array layout of the utility model is simple, adopts a Butler matrix mode, four columns of vibrators are arranged side by side for double beams, horizontal staggered array, through bridge connection, less cable, less welding point, realizing that left and right beams share left and right four groups of vibrators arranged side by side, through phase compensation, this can realize both narrow beam lobe width and beam deviation, low frequency adopts PCB planar array sub-embedded in the intermediate frequency array, at the same time, two columns of conventional beams are arranged on both sides at 65 degrees, improving array gain, reducing the amount of array sub, easy to produce, and lower cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0018] Figure 2 It is the overhead structure schematic diagram of the utility model.

[0019] The marks in the drawings are: 1, reflecting plate;2, first intermediate frequency vibrator unit;3, second intermediate frequency vibrator unit;4, low frequency vibrator unit;5, isolation wall. DETAILED DESCRIPTION

[0020] The embodiment is a kind of hybrid multi-beam antenna array structure, and its structural schematic diagram is as shown in Figures 1-2 The structure includes reflecting plate 1, the upper surface of reflecting plate 1 is provided with two rows of first intermediate frequency transducer units 2, four rows of second intermediate frequency transducer units 3 and two rows of low-frequency transducer units 4, the two rows of first intermediate frequency transducer units 2 are located on the side away from the two rows of low-frequency transducer units 4, the four rows of second intermediate frequency transducer units 3 are located on the side close to the two rows of low-frequency transducer units 4, and the first intermediate frequency transducer units 2, the second intermediate frequency transducer units 3 and the low-frequency transducer units 4 are staggered.

[0021] As shown in Figure 1 and Figure 2 In the embodiment, the number of each row of first intermediate frequency transducer units 2 and second intermediate frequency transducer units 3 is thirty-two, and the number of each row of low-frequency transducer units 4 is eight.

[0022] Specifically, the total number of first intermediate frequency transducer units 2 is thirty-two, every eight intermediate frequency 1727 transducers form a 65-degree conventional array antenna, the total number of second intermediate frequency transducer units 3 is sixty-four, every thirty-two intermediate frequency 1727 transducers form a 33-degree double-beam antenna array, and the total number of low-frequency transducer units 4 is sixteen, every eight low-frequency band filter transducers form a 65-degree conventional 0609 array antenna. By mixing the mixed beam antenna, a small and compact array structure layout is formed.

[0023] As shown in Figure 2 In the embodiment, the distance between the left side of reflecting plate 1 and the first intermediate frequency transducer units 2 is less than the distance between the right side of reflecting plate 1 and the first intermediate frequency transducer units 2, and the distance between the left side of reflecting plate 1 and the low-frequency transducer units 4 and the second intermediate frequency transducer units 3 is greater than the distance between the right side of reflecting plate 1 and the low-frequency transducer units 4 and the second intermediate frequency transducer units 3.

[0024] As shown in Figure 1 In the embodiment, the height of the first intermediate frequency transducer units 2 and the second intermediate frequency transducer units 3 is less than that of the low-frequency transducer units 4, so that they can be inlaid together to reduce the overall volume.

[0025] As shown in Figure 1 and Figure 2 In the embodiment, the non-adjacent first intermediate frequency transducer units 2 are located on the side of the low-frequency transducer units 4, the four rows of second intermediate frequency transducer units 3 are divided into eight groups, the front and back of each group of second intermediate frequency transducer units 3 are staggered between the two low-frequency transducer units 4, one side of each group of second intermediate frequency transducer units 3 is located on the side of the low-frequency transducer units 4, and the other side of each group of second intermediate frequency transducer units 3 is located at the corner of the low-frequency transducer units 4.

[0026] Thus, the left and right beams share the left and right four groups of side-by-side vibrators, and through phase compensation, both narrow beam lobe width and beam deviation can be achieved.

[0027] As shown in Figure 1 In the embodiment, an isolation wall 5 is arranged between each column of the first and second intermediate frequency vibrator units 2 and 3, and the bottom of the isolation wall 5 is fixedly connected to the upper surface of the reflecting plate 1.

[0028] The isolation wall 5 is greater than the height of the first and second intermediate frequency vibrator units 2 and 3, and the main purpose is to reduce or eliminate the interference between the vibrator units, ensure that each vibrator unit can work independently, and thus improve the performance of the entire system.

[0029] Working principle: the mixed multi-beam antenna array layout is simple, adopts a Butler matrix mode, four columns of vibrators are arranged side by side and horizontally staggered to form an array, are connected through a bridge, have less cables and welding points, left and right beams share the left and right four groups of side-by-side vibrators, through phase compensation, both narrow beam lobe width and beam deviation can be achieved, the low-frequency PCB planar array is embedded in the intermediate frequency array, and two columns of conventional beams are arranged on both sides at an angle of 65 degrees, thereby improving the array gain, reducing the amount of array, being easy to produce, and being lower in cost.

[0030] All the technical features in the embodiment can be freely combined according to actual needs.

[0031] The above embodiment is a preferred implementation scheme of the utility model, and the utility model can also be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A hybrid multi-beam antenna array structure comprising a reflector plate (1), characterized in that: The upper surface of the reflecting plate (1) is provided with two rows of first mid-frequency vibrator units (2), four rows of second mid-frequency vibrator units (3) and two rows of low-frequency vibrator units (4), the two rows of first mid-frequency vibrator units (2) are located on the side away from the two rows of low-frequency vibrator units (4), the four rows of second mid-frequency vibrator units (3) are located on the side close to the two rows of low-frequency vibrator units (4), and the first mid-frequency vibrator units (2), the second mid-frequency vibrator units (3) and the low-frequency vibrator units (4) are staggered.

2. The hybrid multi-beam antenna array structure of claim 1, wherein, The number of the first mid-frequency vibrator units (2) and the second mid-frequency vibrator units (3) in each row is thirty-two, and the number of the low-frequency vibrator units (4) in each row is eight.

3. The hybrid multi-beam antenna array structure of claim 2, wherein, The distance between the left side of the reflecting plate (1) and the first mid-frequency vibrator units (2) is less than the distance between the right side of the reflecting plate (1) and the first mid-frequency vibrator units (2), and the distance between the left side of the reflecting plate (1) and the low-frequency vibrator units (4) and the second mid-frequency vibrator units (3) is greater than the distance between the right side of the reflecting plate (1) and the low-frequency vibrator units (4) and the second mid-frequency vibrator units (3).

4. The hybrid multi-beam antenna array structure of claim 3, wherein, The height of the first mid-frequency vibrator units (2) and the second mid-frequency vibrator units (3) is less than that of the low-frequency vibrator units (4).

5. The hybrid multi-beam antenna array structure of claim 4, wherein, The non-adjacent first mid-frequency vibrator units (2) are located on the side of the low-frequency vibrator units (4), and the four rows of second mid-frequency vibrator units (3) are divided into eight groups, and the second mid-frequency vibrator units (3) in each group are staggered and distributed between two low-frequency vibrator units (4).

6. The hybrid multi-beam antenna array structure of claim 5, wherein, One side of the second mid-frequency vibrator units (3) in each group is located on the side of the low-frequency vibrator units (4), and the other side of the second mid-frequency vibrator units (3) in each group is located at the corner of the low-frequency vibrator units (4).

7. The hybrid multi-beam antenna array structure of claim 6, wherein, An isolation wall (5) is arranged between each row of first mid-frequency vibrator units (2) and second mid-frequency vibrator units (3), and the bottom of the isolation wall (5) is fixedly connected with the upper surface of the reflecting plate (1).

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