CN-121983776-A - Wide-beam antenna system and base station equipment

CN121983776ACN 121983776 ACN121983776 ACN 121983776ACN-121983776-A

Abstract

The present application relates to a wide beam antenna system and a base station apparatus. The wide-beam antenna system comprises a radio frequency input port, an adjustable power division network, a first antenna radiator, a second antenna radiator and base station equipment, wherein the adjustable power division network is provided with an input end, a first output end and a second output end, the input end is connected with the radio frequency input port, the adjustable power division network is used for switching or adjusting between at least two preset power distribution ratios according to an external control instruction so as to form a target power distribution ratio between the first output end and the second output end, the first antenna radiator is connected with the first output end through a radio frequency total input end, the second antenna radiator is connected with the second output end through a radio frequency total input end and is arranged with the first antenna radiator in a fixed included angle in the horizontal direction, and the base station equipment comprises the wide-beam antenna system and a radio frequency processing unit connected with the radio frequency input port.

Inventors

HU MAOBING
LI SHU
YU ZONGHONG
SUN JIAN
Wang Tushun
GUO JIANJIANG
XU WEIBIAO
CHEN HUIJUAN

Assignees

江苏亨鑫科技有限公司
江苏亨鑫无线技术有限公司

Dates

Publication Date: 20260505
Application Date: 20260403

Claims (10)

1. A wide beam antenna system, comprising: A radio frequency input port; The adjustable power division network is provided with an input end, a first output end and a second output end, wherein the input end is connected with the radio frequency input port, the adjustable power division network is switched or adjusted between at least two preset power distribution ratios according to an external control instruction so as to form a target power distribution ratio between the first output end and the second output end, a first antenna radiator is connected with the first output end through a radio frequency total input end, and a second antenna radiator is connected with the second output end through a radio frequency total input end and is arranged with the first antenna radiator in a fixed included angle in the horizontal direction.
2. The wide beam antenna system of claim 1 wherein the tunable power divider network comprises a switch switching module and a power divider array, the power divider array comprising at least two power divider units of different preset power division ratios, each power divider unit having an input, a first output and a second output, the switch switching module being configured to selectively communicate the radio frequency input port with the input of a target power divider unit in the power divider array under external control instructions and to connect a first output of a target power divider unit with a first antenna radiator and a second output thereof with a second antenna radiator, wherein the first output of the tunable power divider network is provided by the first output of the target power divider unit and the second output of the tunable power divider network is provided by the second output of the target power divider unit.
3. The wide beam antenna system of claim 2 wherein the switch switching module comprises a single pole multiple throw input switch, at least two sets of single pole multiple throw output switches, the single pole multiple throw input switch, two sets of single pole multiple throw output switches synchronously gating the radio frequency input port with the input of the target power dividing unit, and a first output of the target power dividing unit with the first antenna radiator, a second output of the target power dividing unit with the second antenna radiator under the drive of the external control command.
4. A wide beam antenna system according to claim 2 or 3, wherein the power dividing unit is a fixed passive power divider.
5. The wide beam antenna system of claim 4 wherein the fixed passive power divider and the switching module are integrated on the same dielectric plate.
6. The wide beam antenna system of claim 2, wherein the power divider array comprises three fixed passive power dividers having power division ratios of 1:1, 2:1, and 1:2, respectively.
7. The wide beam antenna system of claim 2, wherein the tunable power distribution network further comprises a switch driving and controlling unit, the switch driving and controlling unit being connected to the switch switching module, for receiving the external control command and driving the switch switching module to switch or adjust.
8. The wide beam antenna system of claim 7, wherein the switch drive and control unit comprises an AISG interface that receives the external control instructions from an external network management system via an AISG protocol.
9. The wide beam antenna system of claim 1 or 7, wherein the first antenna radiator and the second antenna radiator are disposed back-to-back in the housing at the fixed angle, the fixed angle ranging from 50 ° to 90 °.
10. A base station apparatus comprising the wide beam antenna system according to any one of claims 1 to 9 and a radio frequency processing unit connected to the radio frequency input port.

Description

Wide-beam antenna system and base station equipment Technical Field The present application relates to a wide beam antenna system and a base station apparatus. Background In the linear coverage (such as high-speed rail, highway and the like) scene of mobile communication, the traditional scheme adopts two independent antennae to be deployed back to back, and has the inherent defects of high cost and complex deployment although the flexibility is high. In order to remarkably reduce the cost and increase the efficiency, the industry proposes a solution of a wide-beam antenna (a dual-beam antenna), and the core of the solution is that two pairs of antenna bodies are spliced at a fixed included angle and integrated into a fixed equal-power distributor (1:1 power distributor), so that a pair of fixed beams can be formed only by single-port driving. The scheme effectively realizes win-win of communication quality and network distribution cost, and becomes the main stream selection in a symmetrical scene. However, such wide beam antennas, because of their fully cured power distribution pattern, expose fundamental application limitations, whose application model relies strictly on the ideal assumption that the "site is precisely located at the axis in the coverage area". However, in actual engineering, due to the fact that the topography and resources are limited, a large number of sites are offset, path loss imbalance at two sides is caused, so that fixed equal power division cannot dynamically allocate power, near-end signals are too strong, far-end coverage is insufficient, performance is seriously deteriorated, and network construction is forced to yield to a traditional high-cost scheme or be compromised in low-quality coverage. And even at an ideal site, the design cannot respond to uneven traffic on two sides or fine adjustment of channels, and the fine optimization capability is lacking. Thus, the prior art presents a significant contradiction in that conventional schemes are flexible but costly, while existing wide beam antennas are low cost but stiff. Disclosure of Invention The invention aims to provide a wide beam antenna system capable of realizing variable power distribution network, which can realize high-performance and self-adaptive coverage under various actual site conditions such as symmetry, asymmetry and the like. In order to achieve the above purpose, the present invention provides a wide beam antenna system, comprising: A radio frequency input port; The adjustable power division network is provided with an input end, a first output end and a second output end, wherein the input end is connected with the radio frequency input port, the adjustable power division network is switched or adjusted between at least two preset power distribution ratios according to an external control instruction so as to form a target power distribution ratio between the first output end and the second output end, a first antenna radiator is provided with a radio frequency total input end connected with the first output end, and a second antenna radiator is provided with a radio frequency total input end connected with the second output end and is arranged with the first antenna radiator in a fixed included angle in the horizontal direction. The power dividing network comprises a power dividing network array, a switching module and a power dividing array, wherein the power dividing network comprises at least two preset power dividing units with different power dividing ratios, each power dividing unit is provided with an input end, a first output end and a second output end, the switching module is used for selectively communicating the radio frequency input port with the input end of a target power dividing unit in the power dividing network under an external control instruction, and connecting the first output end of the target power dividing unit with a first antenna radiator and the second output end of the target power dividing network with a second antenna radiator, wherein the first output end of the adjustable power dividing network is provided by the first output end of the target power dividing unit, and the second output end of the adjustable power dividing network is provided by the second output end of the target power dividing unit. Further, the switch switching module comprises a single-pole multi-throw input switch and at least two groups of single-pole multi-throw output switches, and under the drive of the external control instruction, the single-pole multi-throw input switch and the two groups of single-pole multi-throw output switches synchronously gate the radio frequency input port and the input end of the target power dividing unit, and the first output end of the target power dividing unit and the first antenna radiator, and the second output end of the target power dividing unit and the second antenna radiator. Further, the power dividing unit is a fixed passive power divider. Further, the