Compact electrically tunable antenna array structure
By designing a compact electrically tunable antenna array structure, staggered distribution, and the introduction of isolation walls and phase guides, the performance impact of adjacent elements in the antenna array was solved, achieving small size, high gain, and sufficient channel capacity.
Patent Information
- Application Number
- CN202423307100.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing antenna arrays, the performance of adjacent antenna elements is greatly affected, resulting in low gain, poor isolation, and problems such as mutual interference and insufficient channel capacity.
A compact electrically tunable antenna array structure is adopted, which uses staggered first high-frequency dipole elements, second high-frequency dipole elements and low-frequency dipole elements, and sets isolation walls and phase guides between high-frequency dipole elements to reduce mutual coupling effects. The narrow-spacing staggered arrangement is used to narrow the lobe width and reduce the array layout size.
It achieves small size and high gain, reduces costs, avoids mutual interference, and improves channel capacity.
Smart Images
Figure CN223612697U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of base station antenna, concretely relates to a compact electrically adjustable antenna array structure. BACKGROUND
[0002] With the high speed development of mobile communication technology, antenna technology is also progressing, at present, 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 the way of electronic control to adjust the antenna downtilt angle. Compared with mechanical antenna, electrically adjustable antenna has the characteristics of simple adjustment and high adjustment precision, since it does not need maintenance personnel to directly carry out mechanical operation, so the downtilt angle of antenna can be adjusted in the working state of antenna, and multi-beam antenna array can work in two frequency bands or even multiple frequency bands, since it has the advantages of relatively small size, sky sharing, low cost, low site requirement, etc., so it becomes the first choice of most operators.
[0003] In order to improve the performance of mobile communication system, antenna array generally adopts the scheme of two columns of same dual-polarized antenna array in parallel, the distance between adjacent antenna units in two columns of dual-polarized antenna array is set far, then the volume of the whole antenna increases, and it occupies large space, if the distance between two columns of dual-polarized antenna array is set too close, the performance between adjacent antenna units is greatly affected, such as low gain and poor isolation, thereby leading to the problems of mutual interference of dual-frequency antenna equipment, insufficient channel capacity and the like. CONTENT OF THE UTILITY MODEL
[0004] (1) technical problem to be solved
[0005] In view of the defects of prior art, the purpose of the utility model is to provide a compact electrically adjustable antenna array structure, which aims at solving the problem that the performance between adjacent antenna units in the existing antenna array is greatly affected, such as low gain and poor isolation, thereby leading to the problems of mutual interference of dual-frequency antenna equipment and insufficient channel capacity.
[0006] (2) technical scheme
[0007] In order to solve the above technical problems, the utility model provides a compact electrically adjustable antenna array structure, this structure includes the reflector plate, the upper surface of reflector plate installs two first high frequency oscillator unit, two second high frequency oscillator unit and two low frequency oscillator unit, two first high frequency oscillator unit is located in the left side of reflector plate and extends to the middle part, two second high frequency oscillator unit is located in the right side of reflector plate and extends to the middle part, two first high frequency oscillator unit is located in the side of two low frequency oscillator unit far away, two second high frequency oscillator unit is located in the side of two low frequency oscillator unit close, first high frequency oscillator unit, second high frequency oscillator unit and low frequency oscillator unit staggered distribution are provided with the leading phase photo between first high frequency oscillator unit and second high frequency oscillator unit and low frequency oscillator unit.
[0008] Preferably, the number of each column of first high frequency oscillator unit and second high frequency oscillator unit is ten, and the number of each column of low frequency oscillator unit is eight.
[0009] Further, the first high frequency oscillator unit corresponds to the left eight low frequency oscillator units, and the second high frequency oscillator unit corresponds to the right eight low frequency oscillator units.
[0010] Further, the first high frequency oscillator unit and the second high frequency oscillator unit are smaller than the height of the low frequency oscillator unit.
[0011] Further, the left one first high frequency oscillator unit is located at the side of the left low frequency oscillator unit, the right nine first high frequency oscillator units are located at the corner of the low frequency oscillator unit, the ten second high frequency oscillator units are located at the corner of the right low frequency oscillator unit, and the distance between the right two second high frequency oscillator units is greater than the distance between the left two second high frequency oscillator units.
[0012] Further, an isolation wall is arranged between each adjacent first high frequency oscillator unit and second high frequency oscillator unit, and the bottom of the isolation wall is fixedly connected with the upper surface of the reflector plate.
[0013] Further, the front and rear sides of the lower surface of the reflector plate are fixedly connected with shielding side walls.
[0014] (3) Advantageous effects
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] The utility model discloses, adopt low frequency band to filter wave vibrator insert flower type group array, reduce the mutual influence between first high frequency vibrator unit, second high frequency vibrator unit and low frequency vibrator unit, and high frequency vibrator unit adopts narrow interval front and back staggered mode narrow petal width, reduces antenna array layout size, to reach small size high gain, reduce the requirement of cost, and first high frequency vibrator unit and second high frequency vibrator unit all are provided with the phase leading photo between low frequency vibrator unit, has the structure layout of promotion gain, is not influenced by low frequency array, avoids the situation of mutual interference, and channel capacity is more sufficient. 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 mark in the drawing is: 1, reflector plate;2, first high frequency vibrator unit;3, second high frequency vibrator unit;4, low frequency vibrator unit;5, isolation wall;6, shield side wall;7, phase leading photo. DETAILED DESCRIPTION
[0020] The specific embodiment is a compact electrically adjustable antenna array structure, and its structural schematic diagram is as shown in Figures 1-2 The structure includes reflector plate 1, the upper surface of reflector plate 1 is equipped with two columns first high frequency vibrator unit 2, two columns second high frequency vibrator unit 3 and two columns low frequency vibrator unit 4, two columns first high frequency vibrator unit 2 are located at the left side of reflector plate 1 and extend to the middle part, two columns second high frequency vibrator unit 3 are located at the right side of reflector plate 1 and extend to the middle part, two columns first high frequency vibrator unit 2 are located at the side far away from two columns low frequency vibrator unit 4, two columns second high frequency vibrator unit 3 are located at the side close to two columns low frequency vibrator unit 4, first high frequency vibrator unit 2, second high frequency vibrator unit 3 and low frequency vibrator unit 4 are staggered distribution, and first high frequency vibrator unit 2 and second high frequency vibrator unit 3 are provided with phase leading photo 7 between low frequency vibrator unit 4.
[0021] As shown in Figure 2 In the embodiment, the number of each column first high frequency vibrator unit 2 and second high frequency vibrator unit 3 is ten, and the number of each column low frequency vibrator unit 4 is eight.
[0022] Specifically, the total number of first high frequency vibrator unit 2 and second high frequency vibrator unit 3 is forty, uses 1727MHz array structure layout, equivalent to 4 1727 antennas, and the total number of low frequency vibrator unit 4 is sixteen, uses 6090MHz array structure layout, equivalent to 2 6090 antennas.
[0023] As shown in Figure 1As shown in the figure: in this embodiment, the first high-frequency vibrator unit 2 corresponds to the left eight low-frequency vibrator units 4, and the second high-frequency vibrator unit 3 corresponds to the right eight low-frequency vibrator units 4. The first high-frequency vibrator unit 2 and the second high-frequency vibrator unit 3 are smaller than the height of the low-frequency vibrator unit 4, so they can be inlaid together to reduce the overall volume.
[0024] As shown in the figure: Figure 2 As shown in the figure: in this embodiment, the left one first high-frequency vibrator unit 2 is located at the side of the left low-frequency vibrator unit 4, and the right nine first high-frequency vibrator units 2 are located at the corner of the low-frequency vibrator unit 4. The ten second high-frequency vibrator units 3 are located at the corner of the right low-frequency vibrator unit 4. The distance between the two second high-frequency vibrator units 3 on the right is greater than the distance between the two second high-frequency vibrator units 3 on the left.
[0025] As shown in the figure: Figure 1 As shown in the figure: Figure 2 As shown in the figure: in this embodiment, a partition wall 5 is arranged between each column of first high-frequency vibrator units 2 and second high-frequency vibrator units 3. The bottom of the partition wall 5 is fixedly connected to the upper surface of the reflecting plate 1.
[0026] The specific partition wall 5 is greater than the height of the first high-frequency vibrator unit 2 and the second high-frequency vibrator unit 3. Its 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.
[0027] As shown in the figure: Figure 1 As shown in the figure: in this embodiment, the front and rear sides of the lower surface of the reflecting plate 1 are fixedly connected with shielding side walls 6. The shielding side walls 6 are made of materials with shielding properties, such as metal or special electromagnetic shielding materials, which can prevent external interference signals from entering and reduce the impact on the array antenna.
[0028] Working principle: by using low-frequency band wave filter vibrator insertion type array, the mutual interference between the first high-frequency vibrator unit 2, the second high-frequency vibrator unit 3 and the low-frequency vibrator unit 4 is reduced. The high-frequency vibrator unit adopts a narrow spacing front and rear staggered mode to narrow the lobe width and reduce the size of the antenna array layout, thereby achieving the requirements of small size, high gain and low cost. At the same time, the first high-frequency vibrator unit 2 and the second high-frequency vibrator unit 3 are provided with phase leading sheets between them and the low-frequency vibrator unit 4, which has a structure layout that improves the gain and is not affected by the low-frequency array, avoiding mutual interference and having more sufficient channel capacity.
[0029] All technical features in this embodiment can be freely combined according to actual needs.
[0030] The above embodiment is a preferred implementation scheme of the present application, in addition to this, the present application can be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the present application.
Claims
1. A compact electrically steerable 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 high-frequency vibrator units (2), two rows of second high-frequency vibrator units (3) and two rows of low-frequency vibrator units (4), the two rows of first high-frequency vibrator units (2) are located on the left side of the reflecting plate (1) and extend to the middle part, the two rows of second high-frequency vibrator units (3) are located on the right side of the reflecting plate (1) and extend to the middle part, the two rows of first high-frequency vibrator units (2) are located on the side away from the two rows of low-frequency vibrator units (4), the two rows of second high-frequency vibrator units (3) are located on the side close to the two rows of low-frequency vibrator units (4), the first high-frequency vibrator units (2), the second high-frequency vibrator units (3) and the low-frequency vibrator units (4) are staggered, and the first high-frequency vibrator units (2) and the second high-frequency vibrator units (3) are provided with phase leading sheets (7) between the low-frequency vibrator units (4).
2. The compact electrical tilt antenna array structure of claim 1, wherein, The number of the first high-frequency vibrator units (2) and the second high-frequency vibrator units (3) in each row is ten, and the number of the low-frequency vibrator units (4) in each row is eight.
3. The compact electrical tilt antenna array structure of claim 2, wherein, The first high-frequency vibrator units (2) correspond to the eight low-frequency vibrator units (4) on the left side, and the second high-frequency vibrator units (3) correspond to the eight low-frequency vibrator units (4) on the right side.
4. The compact electrical tilt antenna array structure of claim 3, wherein, The first high-frequency vibrator units (2) and the second high-frequency vibrator units (3) are smaller than the height of the low-frequency vibrator units (4).
5. The compact electrical tilt antenna array structure of claim 4, wherein, One of the first high-frequency vibrator units (2) on the left side is located on the side edge of the low-frequency vibrator unit (4) on the left side, nine of the first high-frequency vibrator units (2) on the right side are located on the corner of the low-frequency vibrator unit (4), ten of the second high-frequency vibrator units (3) are located on the corner of the low-frequency vibrator unit (4) on the right side, and the distance between the two second high-frequency vibrator units (3) on the right side is greater than the distance between the two second high-frequency vibrator units (3) on the left side.
6. The compact electrical tilt antenna array structure of claim 5, wherein, An isolation wall (5) is arranged between adjacent first high-frequency vibrator units (2) and second high-frequency vibrator units (3) in each row, and the bottom of the isolation wall (5) is fixedly connected with the upper surface of the reflecting plate (1).
7. The compact electrical tilt antenna array structure of claim 6, wherein, The lower surface of the reflecting plate (1) is fixedly connected with a shielding side wall (6) on the front and rear sides.