5G wireless communication base station

Abstract

The present invention relates to a 5G wireless communication base station, comprising an outer cover, an antenna array, a filter, a shielding cover, a PCB board and a radiator arranged in sequence; the external connection pins of the filter are respectively connected to the cover plate of the filter and the bottom of the filter housing; one external connection pin of the filter is connected to the antenna, and the other external connection pin is connected to the PCB board through the shielding cover. The present invention has a compact structure, is small and light.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a 5G wireless communication base station. Background Art

[0002] A wireless communication base station refers to a radio transceiver station that transmits information to wireless terminals through a wireless communication exchange center in a certain radio coverage area. The receiving mode of the base station is that the antenna receives the signal, and the signal is transmitted to the PCB board through the filter, and then to the core network through the low noise amplifier circuit, digital intermediate frequency module and optical module in turn through the optical fiber. The transmitting mode of the base station is that the data of the core network is transmitted to the PCB board through the optical fiber, and then to the antenna end through the filter for transmission.

[0003] The filters used in mobile communication base stations can effectively suppress useless signals and play the role of selecting signals, attenuating noise, filtering out interference, etc. For 5G wireless communication base stations, dozens of filters are needed. With the promotion of green energy and the increasing demand for cost reduction, the demand for low-cost filters is increasing. At the same time, with the development of small and lightweight mobile base stations, the filters used in them are also required to adapt to the narrow assembly space inside the 5G base and meet the needs of smaller structure and better performance. However, the filters used in mobile communication equipment in the existing technology are mostly standard parts with fixed shapes, which cannot meet the needs of 5G wireless communication base stations requiring smaller structures. Summary of the invention

[0004] The technical problem to be solved by the present invention is to propose a 5G wireless communication base station in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A 5G wireless communication base station is provided, comprising an outer cover, an antenna array, a filter, a shielding cover, a PCB board and a radiator arranged in sequence; the external connection pins of the filter are respectively connected to the cover plate of the filter and the bottom of the filter housing; one external connection pin of the filter is connected to the antenna, and the other external connection pin is connected to the PCB board through the shielding cover.

[0007] Further:

[0008] The filter housing is formed in one piece by arranging three or more resonant cavities in a honeycomb shape, and the resonator is located at the central axis of each resonant cavity.

[0009] Each resonant cavity is a regular cylindrical cavity.

[0010] The cylindrical cavity is a cylinder or a regular polygonal cylinder.

[0011] When there are two or more filters, the number of resonators in each filter may be the same or different.

[0012] The filter and the shielding cover are integrally formed.

[0013] Screw holes are provided at the places where three or more resonant cavities are connected.

[0014] The resonator can be rotatably mounted on the cover plate around its axis and suspended in the resonator cavity; the resonator coupling surface at the bottom of the resonator is opposite to the cavity coupling surface at the bottom of the resonator cavity; when the resonator is rotated, the distance between the resonator coupling surface and the cavity coupling surface remains unchanged, and the effective coupling areas of the two coupling surfaces change accordingly.

[0015] Compared with the prior art, the filter in the present invention has a compact structure, a small size, and good resonant cavity consistency, and is more suitable for the miniaturization requirements of 5G wireless communication base stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a 5G wireless communication base station of the present invention;

[0017] Figure 2 A schematic diagram of the axonometric projection of the filter in the present invention;

[0018] Figure 3 A schematic diagram of the axonometric projection of the filter of the present invention when it is moved away from the cover plate;

[0019] Figure 4 A schematic diagram of an orthographic projection front view of the filter in the present invention;

[0020] Figure 5 A schematic diagram of an orthographic top view of the filter of the present invention;

[0021] Figure 6 The resonant cavity of the filter in the present invention is a schematic diagram of an orthographic top view of a regular-sided cylinder;

[0022] Figure 7 The resonant cavity of the filter in the present invention is a schematic diagram of an orthographic top view of a cylinder;

[0023] Figure 8 A schematic cross-sectional view of the orthographic projection of the components in the resonant cavity of the filter of the present invention;

[0024] Fig. 9 A schematic diagram of the effective coupling of two coupling surfaces of the resonant cavity of the filter in the present invention when viewed from above;

[0025] Fig.10 A schematic diagram of an axonometric projection of a resonator of a filter in the present invention. DETAILED DESCRIPTION

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] like Figure 1 As shown, a 5G wireless communication base station is a cube, comprising an outer cover 1, an antenna array 2, a filter 3, a shielding cover 4, a PCB board 5 and a radiator 6 arranged in sequence.

[0028] like Figures 2 to 7 As shown, the filter can be one or more than one, each filter includes N resonators 35, and the filter housing 30 of the filter is composed of N resonant cavities 31 arranged in a honeycomb shape, so that the resonant cavities are arranged more compactly, effectively reducing the overall volume of the filter housing 30; the resonators 35 are arranged one by one on the central axis of each resonant cavity 31, one external connection pin 32 of the filter is connected to the antenna, and the other external connection pin 33 passes through the shielding cover and is connected to the PCB board, where N is greater than or equal to 3. At the connection of three or three resonant cavities, screw holes for fixed installation are set as connectors, so that the connector does not increase the volume of the filter, making the filter light and small.

[0029] When there are more than two filters used in a 5G wireless communication base station, the number of resonators of each filter can be the same or different. For example, in this embodiment, two groups of filters are configured, one group of filters has four filters, and each group of filters can be integrally die-cast, or can be die-cast separately, or integrally molded with a shield.

[0030] like Figure 6 and Figure 7 As shown, each resonant cavity 31 is a cylindrical cavity, which can be a cylinder or a regular polygonal cylinder. From a top view, the resonant cavity is circular or regular polygonal. In this embodiment, a regular hexahedron is shown. In other embodiments, other regular polyhedrons such as regular octahedrons can be used. Since the shape of each resonant cavity is regular and non-special, the performance of the filter is guaranteed to be excellent.

[0031] like Figures 8 to 10 As shown in the figure, the resonator 35 of the filter is riveted onto the cover plate 34 through an elastic device 37, such as a disc spring, and is suspended in the resonance cavity. The elastic element 37 can ensure that the resonator is in close contact with the cover plate surface without being riveted to the point that the resonator cannot rotate.

[0032] The bottom surface of the resonant cavity 31 has a small circular boss that is not coaxial with the axis of the resonator, and the top surface of the boss forms a cavity coupling surface 301, which is opposite to the resonator coupling surface 300 located on the bottom surface of the resonator 35 on the cover plate. The coupling surface of the resonator and the coupling surface of the cavity are any shape except a circle with the axis of the resonator as the center; the coupling amount of the filter depends on the distance between the two coupling surfaces and the effective coupling area of ​​the two coupling surfaces; the coupling amount is inversely proportional to the distance and directly proportional to the area; after the resonator and the cover plate are riveted, the distance between the coupling surface of the resonator and the coupling surface of the cavity is fixed.

[0033] See Fig. 9 When the direction of the resonator is adjusted, the effective coupling area between the resonator coupling surface and the cavity coupling surface can be changed, thereby achieving the function of adjusting the coupling amount. This effectively eliminates the adjustment screw extending outside the resonant cavity of the traditional filter, effectively reduces the height of the filter, miniaturizes it, reduces the installation space, and reduces the manufacturing cost, which is more suitable for the miniaturization of 5G wireless communication base stations.

[0034] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and these modifications and replacements should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A 5G wireless communication base station, characterized in that: The invention comprises an outer cover, an antenna array, a filter, a shielding cover, a PCB board and a radiator arranged in sequence; the external connection pins of the filter are respectively connected to the cover plate of the filter and the bottom of the filter housing; one external connection pin of the filter is connected to the antenna, and the other external connection pin is connected to the PCB board through the shielding cover; The filter housing is formed in one piece by three or more resonant cavities arranged in a honeycomb shape, and the resonator is located at the central axis of each resonant cavity; The resonator of the filter is riveted on the cover plate by an elastic device, and can be suspended in the resonant cavity rotatably around its axis; the bottom surface of the resonant cavity has a small circular boss that is not coaxial with the axis of the resonator, and the top surface of the boss forms a cavity coupling surface, which is opposite to the resonator coupling surface located on the bottom surface of the resonator on the cover plate, and the shape of the resonator coupling surface and the cavity coupling surface is any shape except a circle with the axis of the resonator as the center; When the resonator is rotated, the distance between the resonator coupling surface and the cavity coupling surface remains unchanged, and the effective coupling areas of the two coupling surfaces change accordingly.

2. The 5G wireless communication base station according to claim 1, characterized in that: Each resonant cavity is a regular cylindrical cavity.

3. The 5G wireless communication base station according to claim 2, characterized in that: The cylindrical cavity is a cylinder or a regular polygonal cylinder.

4. The 5G wireless communication base station according to claim 1, characterized in that: When there are two or more filters, the number of resonators in each filter is the same or different.

5. The 5G wireless communication base station according to claim 1, characterized in that: The filter and the shielding cover are integrally formed.

6. The 5G wireless communication base station according to claim 1, characterized in that: Screw holes for external fixation are provided at the connection points of three or more resonant cavities.

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