Wide and narrow wave beam adjustable array antenna

Abstract

The invention provides a wide and narrow wave beam adjustable array antenna, which comprises at least two groups of sub-arrays, each group of sub-arrays comprises at least one high-frequency dual-channel antenna, the side edge of each high-frequency dual-channel antenna is provided with a reflection boundary, and the reflection boundary is driven by a lifting device to ascend and descend. The high-frequency dual-channel antenna works in a corresponding wave beam working mode under the condition that the reflection boundary is at a plurality of different heights; wherein the beam working mode comprises a wide beam mode, a first conventional antenna mode and a second conventional antenna mode, and the beam width of the first conventional antenna mode is different from that of the second conventional antenna mode. According to the invention, the beam width can be adjusted by adjusting the height of the reflection boundary, so that the requirements in different scenes are met.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, and in particular to a wide-narrow beam adjustable array antenna. Background Art

[0002] In 5G and future 6G communication systems, base station antennas serve as the critical front-end for wireless signal transmission. Their performance directly impacts the overall system coverage, capacity, and user experience. Traditional fixed-beamwidth antennas have gradually exposed problems such as insufficient flexibility and low resource utilization in complex and changing wireless environments. This is particularly true in typical scenarios with dynamically changing user density and uneven network load, making it difficult to achieve an optimal balance between communication quality and resource efficiency.

[0003] The prior art has the following problems:

[0004] 1. Existing multi-beam antennas typically use fixed beam widths and cannot be adjusted according to actual needs. In some scenarios, the coverage range may be too large or too small, resulting in poor system capacity utilization.

[0005] 2. In the existing technology, although methods such as changing the vibrator form, adjusting the vibrator's height from the reflector, or changing the reflector shape can change the beam width, they have defects such as affecting the input impedance and operating bandwidth and being only applicable to a certain frequency band, making it difficult to achieve flexible adjustment of the beam width within the ultra-wideband range.

[0006] 3. In the existing technology, the efficiency and accuracy of beamforming networks need to be further optimized.

[0007] 4. In the prior art, the radiation performance of the parasitic radiating unit needs to be improved so that it can more accurately change the beam width of the array radiating unit.

[0008] Therefore, there is an urgent need for a new type of array antenna with adjustable beam width, which can flexibly adjust the beam width within the ultra-wideband range according to actual needs, improve system capacity utilization, and avoid the defects of existing technologies. Summary of the Invention

[0009] In response to the above-mentioned defects, the purpose of the present invention is to provide an array antenna with adjustable wide and narrow beams, which adopts a design in which the side reflection boundary can be raised and lowered, and the beam width can be adjusted by adjusting the height of the reflection boundary to meet the needs of different scenarios.

[0010] In order to achieve the above-mentioned objectives, the present invention provides a wide-narrow beam adjustable array antenna, comprising at least two groups of subarrays, each group of the subarrays including at least one high-frequency dual-channel antenna, the side of the high-frequency dual-channel antenna is provided with a reflection boundary, and the reflection boundary is driven to rise and fall by a lifting device, and the high-frequency dual-channel antenna operates in corresponding beam working modes when the reflection boundary is at multiple different heights; wherein the beam working modes include a wide beam mode, a first conventional antenna mode and a second conventional antenna mode, and the beam widths of the first conventional antenna mode and the second conventional working mode are different.

[0011] Furthermore, when the reflection boundary is raised to 70 cm by the lifting device, the high-frequency dual-channel antenna is in the wide beam mode, and the beam width is 80 degrees.

[0012] Furthermore, when the reflection boundary is raised to 20 cm by the lifting device, the high-frequency dual-channel antenna is in the first conventional antenna mode, and the beam width is 65 degrees.

[0013] Furthermore, when the reflection boundary is lowered to 0 cm by the lifting device, the high-frequency dual-channel antenna is in the second conventional antenna mode, and the beam width is 50 degrees.

[0014] Optionally, the reflective boundary is made of a metal plate or a material with good reflective properties.

[0015] Optionally, the lifting device is electrically driven or hydraulically driven.

[0016] Optionally, the distance between the reflection boundary and the high-frequency dual-channel antenna is 20 cm.

[0017] Optionally, there are two groups of sub-arrays distributed on the left and right, each group of sub-arrays includes four high-frequency dual-channel antennas, and the left and right sides of each group of sub-arrays are provided with the reflection boundaries.

[0018] The wide and narrow beam adjustable array antenna described in the present invention realizes flexible adjustment of the beam width within the ultra-wideband range through the design of the side reflection boundary that can be raised and lowered. The beam width can be adjusted according to actual needs, avoiding the problem of excessive or insufficient coverage of existing fixed beam width multi-beam antennas in certain scenarios, thereby improving the system capacity utilization rate; compared with existing methods such as changing the vibrator form, adjusting the vibrator height from the reflection plate, or changing the reflection plate shape, the present invention does not affect the input impedance and working bandwidth, is not limited to a certain frequency band, and can realize beam width adjustment within the ultra-wideband range; the invention can realize beam width adjustment through simple adjustment of the reflection boundary height, has a simple structure, low cost, and is easy to implement; and can realize multiple beam modes such as wide beam mode and conventional beam mode, meeting the needs in different scenarios, and improving the applicability and flexibility of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of the first height of the reflection boundary of the wide-narrow beam adjustable array antenna provided in one embodiment of the present invention;

[0020] Figure 2 A schematic structural diagram of the second height of the reflection boundary of the wide and narrow beam adjustable array antenna provided in one embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of the third height of the reflection boundary of the wide-narrow beam adjustable array antenna provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that references to "one embodiment," "an embodiment," "an example embodiment," etc., in this specification indicate that the described embodiment may include specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such references do not necessarily refer to the same embodiment. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, whether or not explicitly described, it is understood that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0024] Currently, most mainstream macro base station antennas use fixed-beam structures, which make it difficult to achieve optimal radiation distribution under varying traffic densities and interference scenarios. This invention aims to overcome the limitations of traditional fixed antenna beams by developing an intelligent array antenna system with adjustable wide / narrow beams and environmental awareness. This solution will help operators achieve key capabilities such as on-demand capacity allocation, active interference suppression, and dynamic energy efficiency adjustment while ensuring wide coverage, thereby improving overall network service quality and resource utilization.

[0025] Figures 1 to 3 An embodiment of the present invention provides an adjustable wide-narrow beam array antenna. The antenna comprises at least two subarrays, each of which includes at least one high-frequency dual-channel antenna 10. Sides of the high-frequency dual-channel antenna 10 are provided with reflective boundaries 20, which are raised and lowered by a lifting mechanism. The high-frequency dual-channel antenna 10 operates in corresponding beam operating modes when the reflective boundary 20 is at multiple different heights. The beam operating modes include a wide-beam mode, a first conventional antenna mode, and a second conventional antenna mode. The first and second conventional antenna modes have different beam widths. Specifically, the antenna beam width is adjusted by adjusting the elevation height of the reflective boundary 20, thereby placing the high-frequency dual-channel antenna 10 in the corresponding beam operating mode.

[0026] This embodiment specifically includes two groups of subarrays distributed left and right, each group of subarrays including four high-frequency dual-channel antennas 10, and the left and right sides of each group of subarrays are provided with the reflective boundaries 20. In other examples, the wide- and narrow-beam adjustable array antenna may include more than two subarrays, each group of subarrays including multiple high-frequency dual-channel antennas 10, and adjacent subarrays are isolated by reflective boundaries 20 provided on the sides. The height of the reflective boundaries 20 is driven by a lifting device to adjust the beam width to meet the needs of different scenarios.

[0027] See also Figure 1 In one embodiment, when the reflective boundary 20 is raised to 70 cm by the lifting device, the high-frequency dual-channel antenna 10 is in wide-beam mode with a beamwidth of 80 degrees. As shown in the figure, the reflective boundary 20 can be raised or lowered relative to the working surface. When the top of the reflective boundary 20 rises to a height of 70 cm from the working surface, the beamwidth of the high-frequency dual-channel antenna 10 reaches 80 degrees, indicating wide-beam mode. The working surface specifically refers to the mounting surface of the high-frequency dual-channel antenna 10.

[0028] See also Figure 2In one embodiment, when the reflective boundary 20 is raised to 20 cm by the lifting device, the high-frequency dual-channel antenna 10 is in the first normal antenna mode with a beamwidth of 65 degrees. Specifically, when the reflective boundary 20 is lowered by the lifting device to a height of 20 cm from the top of the reflective boundary 20 to the working surface, the high-frequency dual-channel antenna 10 is in the first normal antenna mode with a beamwidth of 65 degrees.

[0029] See also Figure 3 In one embodiment, when the reflective boundary 20 is lowered to 0 cm by the lifting device, the high-frequency dual-channel antenna 10 is in the second normal antenna mode with a beamwidth of 50 degrees. Specifically, when the reflective boundary 20 is lowered by the lifting device until its top is flush with the working surface, the high-frequency dual-channel antenna 10 is in the second normal antenna mode with a beamwidth of 50 degrees.

[0030] Of course, in other optional examples, the height of the reflection boundary can be adjusted according to actual needs, thereby achieving flexible adjustment of the beam width.

[0031] The reflective boundary 20 can be made of a metal plate or other material with excellent reflective properties. In this embodiment, aluminum alloy is preferably used for the reflective boundary 20. Specifically, the reflective boundary 20 has a plate-like structure, is 1 meter long, and has an adjustable height range of 0-70 cm. This embodiment does not impose any restrictions on the height adjustment range of the reflective boundary 20. Furthermore, the distance between the reflective boundary 20 and the high-frequency dual-channel antenna 10 is 20 cm.

[0032] A through hole for the reflective boundary 20 to penetrate and connect is provided in the corresponding area on the working surface. The reflective boundary 20 is installed on the through hole and is driven to be raised and lowered by the lifting device.

[0033] The lifting device is electrically driven or hydraulically driven, and the reflective boundary 20 can also be lifted and lowered by a mechanical device.

[0034] To sum up, the wide and narrow beam adjustable array antenna provided in this embodiment realizes flexible adjustment of the beam width through the side liftable reflection boundary, and combines technical solutions such as high-frequency dual-channel antenna, multi-beam antenna structure and parasitic radiation unit, so as to realize precise adjustment of the beam width within the ultra-wideband range, improve the system capacity utilization and avoid the defects of the existing technology.

[0035] The present invention provides a wide- and narrow-beam adjustable array antenna with dynamically adjustable beam width, flexible control of radiation direction, and intelligent optimization of system energy efficiency. Aiming at the core requirements of next-generation wireless communications for high capacity, high flexibility, and high reliability, this antenna promotes the intelligent evolution of antennas and provides operators with more forward-looking infrastructure solutions.

[0036] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A wide-narrow beam adjustable array antenna, characterized in that: The invention comprises at least two groups of subarrays, each group of the subarrays comprises at least one high-frequency dual-channel antenna, the side of the high-frequency dual-channel antenna is provided with a reflection boundary, the reflection boundary is driven to rise and fall by a lifting device, and the high-frequency dual-channel antenna operates in corresponding beam working modes when the reflection boundary is at multiple different heights; wherein the beam working modes include a wide beam mode, a first conventional antenna mode and a second conventional antenna mode, and the beam widths of the first conventional antenna mode and the second conventional working mode are different.

2. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: When the reflection boundary is raised to 70 cm by the lifting device, the high-frequency dual-channel antenna is in the wide beam mode, and the beam width is 80 degrees.

3. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: When the reflection boundary is raised to 20 cm by the lifting device, the high-frequency dual-channel antenna is in the first conventional antenna mode, and the beam width is 65 degrees.

4. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: When the reflection boundary is lowered to 0 cm by the lifting device, the high-frequency dual-channel antenna is in the second conventional antenna mode, and the beam width is 50 degrees.

5. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: The reflective boundary is made of a metal plate or a material with good reflective performance.

6. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: The lifting device is electrically driven or hydraulically driven.

7. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: The distance between the reflection boundary and the high-frequency dual-channel antenna is 20 cm.

8. The wide-narrow beam adjustable array antenna according to claim 1, characterized in that: It comprises two groups of sub-arrays distributed on the left and right, each group of sub-arrays comprises four high-frequency dual-channel antennas, and the left and right sides of each group of sub-arrays are provided with the reflection boundaries.

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