Antenna feeder attitude adjusting device suitable for linear coverage scene

Abstract

An antenna feeder posture adjusting device suitable for a linear coverage scene is characterized in that a front baffle (7) is fixed to the upper end and the lower end of the back of an antenna feeder (13) through fixing bolts (6), a clamping strip (5) is fixed to one end of the front baffle (7), and a rear baffle (4) is fixed to the other end of the front baffle (7) and the bottom of the clamping strip (5); the upper hoop (1) is hinged with a support arm (3), and the tail end of the support arm (3) is hinged with a rear baffle plate (4); and the lower hoop (2) is hinged with a rear baffle plate (4). According to the utility model, the azimuth angle, the downward inclination angle and the roll angle of the antenna feeder can be flexibly adjusted according to the actual application environment, thereby adapting to the coverage requirements of linear scenes.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, specifically to an antenna attitude adjustment device suitable for linear coverage scenarios. Background Technology

[0002] For typical linear coverage scenarios such as high-speed rail, highways, and rivers, the demand for antenna downtilt angle at the near point of coverage is greater than that at the far point. Whether the beamform of the antenna can accommodate the difference in downtilt angle between the near and far points is a key factor affecting whether the line can provide continuous coverage.

[0003] Routine network optimization work involves adjusting the downtilt and azimuth angles of the antenna feeder. This results in an angle between the antenna feeder's main beam projection on the ground and the linear coverage scenario, making it difficult to achieve continuous coverage from near to far within the pre-coverage area. To reduce this angle, the antenna feeder's deployment orientation can be adjusted. By adjusting the downtilt and azimuth angles, the antenna feeder's normal direction (assuming it's the direction of maximum gain) is aligned with the pre-coverage line. The intersection of the antenna feeder's normal and the pre-coverage line is defined as the pivot point. Using this normal direction as the axis, the antenna feeder is rotated within the downtilt plane, causing the beam projection on the ground to rotate around the pivot point, ultimately aligning with the pre-coverage line. By adjusting the azimuth, downtilt, and roll angles, the base station antenna feeder's beam projection is optimized, ensuring perfect alignment between the antenna feeder beam and the pre-coverage line.

[0004] However, traditional antenna installation methods do not support roll angle adjustment, making this method difficult to implement in practical linear coverage scenarios. Utility Model Content

[0005] The purpose of this invention is to provide an antenna feed 13 attitude adjustment device suitable for linear coverage scenarios based on a three-dimensional coverage model of the linear coverage scenario, so that the beam projection of the antenna feed 13 can continuously cover the linear coverage scenario.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An antenna feeder 13 attitude adjustment device suitable for linear coverage scenarios, wherein the upper and lower ends of the back of the antenna feeder 13 are fixed with a front baffle 7 by fixing bolts 6, one end of the front baffle 7 is fixed with a retaining strip 5, and the other end of the front baffle 7 and the bottom of the retaining strip 5 are fixed with a rear baffle 4; the upper clamp 1 is hinged to a support arm 3, and the end of the support arm 3 is hinged to the rear baffle 4; the lower clamp 2 is hinged to the rear baffle 4.

[0008] This utility model also has the following additional technical features:

[0009] As a further specific optimization of the technical solution of this utility model: the upper clamp 1 and the lower clamp 2 are respectively installed and fixed on the clamping rod 12.

[0010] As a further specific optimization of the technical solution of this utility model: the upper and lower ends of the back of the antenna feeder 13 are fixed with front baffles 7 by fixing bolts 6.

[0011] As a further specific optimization of the technical solution of this utility model: one end of the front baffle 7 is fixed with a retaining strip 5 by a short shaft 10 and a nut 11, and the other end of the front baffle 7 and the bottom of the retaining strip 5 are fixed with a rear baffle 4 by a washer 8, a long bolt 9 and a nut 11.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] The beneficial effects of this utility model are: when this utility model is applied to linear scene coverage, the beam projection of the base station antenna feeder 13 can be optimized by adjusting the three parameters of azimuth angle, downtilt angle and roll angle, so that the antenna feeder (13) beam is perfectly aligned with the straight track lines such as highways, high-speed railways, rivers, and long bridges, thereby improving the coverage effect of wireless signals. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the angular relationship structure of this utility model;

[0017] Explanation of reference numerals in the attached diagram: 1 Upper clamp, 2 Lower clamp, 3 Support arm, 4 Rear baffle, 5 Clamping strip, 6 Fixing bolt, 7 Front baffle, 8 Washer, 9 Long bolt, 10 Short shaft, 11 Nut, 12 Mounting rod, 13 Antenna feeder. Detailed Implementation

[0018] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0019] An antenna feeder 13 attitude adjustment device suitable for linear coverage scenarios includes an upper clamp 1, a lower clamp 2, a support arm 3, a rear baffle 4, a locking strip 5, a fixing bolt 6, a front baffle 7, a gasket 8, a long bolt 9, a short shaft 10, a nut 11, a support rod 12, and an antenna feeder 13.

[0020] The upper and lower ends of the back of the antenna feeder 13 are fixed with a front baffle 7 by fixing bolts 6. One end of the front baffle 7 is fixed with a retaining strip 5 by a short shaft 10 and a nut 11. The other end of the front baffle 7 and the bottom of the retaining strip 5 are fixed with a rear baffle 4 by a washer 8, a long bolt 9 and a nut 11.

[0021] The upper clamp 1 and the lower clamp 2 are respectively installed and fixed on the support rod 12. The upper clamp 1 is hinged to the support arm 3, and the end of the support arm 3 is hinged to the rear baffle 4; the lower clamp 2 is hinged to the rear baffle 4.

[0022] The principle of the Antenna-Feeder 13 attitude adjustment device suitable for linear coverage scenarios:

[0023] It includes an upper clamp 1 and a lower clamp 2. The upper clamp 1 is connected to the support arm 3, and the front end of the support arm 3 is hinged to the rear baffle 4. The lower clamp 2 is directly hinged to the rear baffle 4. Extending or retracting the support arm 3 can adjust the downward tilt angle of the antenna feeder 13. The top front baffle 7 is shorter, and the antenna feeder 13 is fixed to the front baffle 7 by short bolts. The bottom front baffle 7 is longer and is kept horizontal during installation. The top and bottom front baffles 7 are connected by a short shaft 10 and a retaining strip 5. Adjusting the length and installation position of the retaining strip 5 can make a certain angle between the top and bottom front baffles 7, thereby giving the antenna feeder 13 a roll angle, and it is fixed with matching shims 8, long bolts 9 and nuts 11.

[0024] Practical application of the Antenna-Feeder 13 attitude adjustment device in linear coverage scenarios:

[0025] This technical solution allows for flexible adjustment of the azimuth, downtilt, and roll angle of the antenna feeder 13 according to the actual coverage environment. The azimuth angle is adjusted by simultaneously rotating the upper and lower clamps around the support pole 12, with true north as 0 degrees and the rotation angle counted clockwise. The downtilt angle is adjusted by raising or lowering the upper support arm 3 to move the antenna feeder 13, controlling the coverage distance of the wireless signal. The roll angle refers to the angle between the horizontal axis of the antenna feeder 13 and the horizontal line; the roll angle is positive when the antenna feeder 13 is tilted to the right (rear view) and negative when tilted to the left (rear view). The two front baffles 7 are fixed to the back of the antenna feeder 13 by four fixing bolts 6. The front baffles 7 have large-diameter openings in the middle of both ends and small-diameter perforations along the lower edge. The two rear baffles are fixed to the support arm 3 and the lower clamp 2, respectively, with a row of small-diameter openings and a row of large-diameter openings along the upper edge. Based on the roll angle requirements of the coverage scenario, select appropriate openings (large diameter) at one end of the upper and lower front and rear baffles. Use long bolts 9 to pass through the gasket 8, front baffle 7, short shaft 10, and rear baffle 4, then secure them with gaskets 8 and nuts 11. This keeps the rear baffle 4 horizontal, while the upper and lower front baffles 7 can simultaneously rotate around the short shaft 10 at a certain angle, causing the antenna feeder 13 to tilt at a specific roll angle. The roll angle is locked by a retaining strip 5, which has a row of small diameter openings. One end connects to the rear baffle 4, and the other end connects to the front baffle 7. The length is adjustable and it is secured by fixing bolts 6.

[0026] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A device for adjusting the posture of a feed antenna suitable for linear coverage scenarios, characterized in that it comprises: The upper end and the lower end of the back of the antenna feeder (13) are fixed with the front baffle (7) through the fixing bolt (6), one end of the front baffle (7) is fixed with the clamping strip (5), the other end of the front baffle (7) and the bottom of the clamping strip (5) are fixed with the rear baffle (4); the upper clamping hoop (1) is hingedly connected with the supporting arm (3), the terminal end of the supporting arm (3) is hingedly connected with the rear baffle (4); the lower clamping hoop (2) is hingedly connected with the rear baffle (4). 2.The device for adjusting the posture of a feed antenna according to claim 1, wherein: The upper clamping hoop (1) and the lower clamping hoop (2) are respectively installed and fixed on the holding rod (12). 3.The device for adjusting the posture of a feed antenna according to claim 1, wherein: The upper end and the lower end of the back of the antenna feeder (13) are fixed with the front baffle (7) through the fixing bolt (6).

4. The device for adjusting the posture of a feed antenna according to claim 1, wherein: One end of the front baffle (7) is fixed with the clamping strip (5) through the short shaft (10) and the nut (11), the other end of the front baffle (7) and the bottom of the clamping strip (5) are fixed with the rear baffle (4) through the gasket (8), the long bolt (9) and the nut (11).

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