CN212542698U

CN212542698U - Electrically-tunable antenna reflecting plate and base station antenna

Info

Publication number: CN212542698U
Application number: CN202021691039.XU
Authority: CN
Inventors: 崔晓辉; 吴天昊; 陆智明
Original assignee: Jiangsu Leitong Communication Technology Co ltd
Current assignee: Jiangsu Leitong Communication Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-02-12
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses an electricity is transferred antenna reflecting plate and base station antenna relates to communication technology field, has solved the not enough technical problem of the vertical compressive strength of antenna reflecting plate, and its technical scheme main points are that this electricity is transferred antenna reflecting plate includes the bottom plate and is located two curb plates that the bottom plate both sides and be connected with the bottom plate, and the curb plate then includes interior plate and outer panel, and the interior plate is connected with the bottom plate, and interior plate and outer panel pass through connection structure and connect. The curb plate that interior plate, outer panel and connection structure are constituteed to the holistic vertical compressive strength greatly increased of electricity accent antenna reflecting plate, and the recess that interior plate, outer panel and connection structure are constituteed has the choke groove effect simultaneously, has very big improvement and improvement to the holistic front-to-back ratio of antenna.

Description

Electrically-tunable antenna reflecting plate and base station antenna

Technical Field

The utility model relates to the technical field of communication, especially, relate to an electricity accent antenna reflecting plate and base station antenna.

Background

With the rapid development of modern intelligent networking services, people have higher and higher coverage requirements on wireless networks. The number of the base station antennas used as the important components of the mobile communication system will be continuously increased, how to realize more efficient coverage in the limited space, the requirements on the addressing environment of the base station antennas and the size of the antennas are higher and higher, and the high-integration antenna supporting multi-band sharing becomes the mainstream direction of the base station antenna design in the new era.

The base station antenna consists of an antenna housing, a reflecting plate, a radiating unit, a phase shifter and a feed network, wherein the reflecting plate is a carrier for assembling and weighing the whole antenna component, is also an important factor influencing key indexes such as a directional diagram, a front-to-back ratio and the like, and is an important component of the antenna. Because the requirement of the high-integrated antenna shared by multiple frequency bands on the weight borne by the reflecting plate is higher and higher, the reflecting plate of the antenna can deform if the strength of the reflecting plate is not enough in the processes of transportation, vibration and falling impact of the whole base station antenna, and the electrical performance of the whole antenna can be further influenced.

For the above situation, the current design of the reflective plate has the following three ways:

(1) the mode of increasing the thickness is adopted, the mode is slightly changed, but the weight and the cost of the antenna are obviously increased;

(2) other materials with higher strength are adopted for replacement, the method is high in cost, and different materials are processed in different modes, so that adverse factors can be brought to the development and production maturity and the processing flexibility of the whole product;

(3) adopt the mode that increases the strengthening rib alone, this mode cost can not be too high, nevertheless need artifical equipment once more, and the material kind increases to make material management cost and artifical equipment cost all can increase, and the assembly piece probably brings the risk to antenna intermodulation, and this has not only prolonged production time, also can reduce the yield.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrically tunable antenna reflecting plate and base station antenna, its technical purpose is: the longitudinal compression strength of the antenna reflector plate is improved by using conventional materials without increasing the material thickness and labor cost.

The technical purpose of the present disclosure is achieved by the following technical solutions:

an electrically tunable antenna baffle, comprising:

a base plate;

the side plates comprise an inner side plate and an outer side plate, the inner side plate and the outer side plate are connected through a connecting structure, and the inner side plate is connected with the bottom plate.

Further, the inner side plate is formed by bending downwards from the side edge of the bottom plate, and the outer side plate is formed by bending upwards from the end part of the connecting structure.

Further, the connecting structure comprises a plane structure and an arc-shaped structure.

Further, the upper end of the outer side plate is bent upwards or vertically upwards.

Further, the corresponding positions of the outer side plate and the inner side plate are provided with holes, reinforcing plates are connected through the holes, and the reinforcing plates are arranged above the bottom plate.

Further, the apertures may be evenly or unevenly spaced apart in the outer side plate and the inner side plate.

Further, the bottom plate and the side plate are integrally formed.

A base station antenna comprises an antenna body and an electric tilt antenna reflection plate.

The beneficial effect of this disclosure lies in: electrically transfer antenna reflecting plate and base station antenna, this electrically transfer antenna reflecting plate include the bottom plate and be located the bottom plate both sides and with two curb plates of bottom plate connection, the curb plate then includes interior plate and outer panel, the interior plate is connected with the bottom plate, interior plate and outer panel pass through connection structure and connect. The curb plate that interior plate, outer panel and connection structure are constituteed to the holistic vertical compressive strength greatly increased of electricity accent antenna reflecting plate, and the recess that interior plate, outer panel and connection structure are constituteed has the choke groove effect simultaneously, has very big improvement and improvement to the holistic front-to-back ratio of antenna.

Drawings

Fig. 1 and 2 are schematic structural diagrams of the present disclosure;

FIG. 3 is a schematic view of a side panel structure;

FIG. 4 is a schematic front view of the present disclosure;

FIG. 5 is a schematic view of a side panel embodiment;

in the figure: 1-a bottom plate; 2-side plate; 3-an outer panel; 4-inner side plate; 5-a linking structure; 6-groove; 7-well; 8-reinforcing plate.

Detailed Description

The technical scheme of the disclosure will be described in detail with reference to the accompanying drawings. In the description of the present disclosure, it is to be understood that the terms "sides," "bottom," "sides," "ends," "up," "down," "upper," "vertical," "bends," "over," "spaced," "uniform," "planar," "curved," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present disclosure. The term "inside" and "outside" refer to the inside and the outside of the contour of each member itself.

In addition, unless expressly stated or limited otherwise, the terms "connected" and "attached" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those skilled in the art.

Fig. 1 and 2 are schematic structural diagrams of the present disclosure, and as can be seen from fig. 1 and 2, the electrically tunable antenna reflection plate includes a bottom plate and two side plates located at two sides of the bottom plate and connected to the bottom plate. As can be seen from fig. 3, the side plates include an inner side plate and an outer side plate, the inner side plate is connected to the bottom plate, the inner side plate and the outer side plate are connected by a connecting structure, wherein the inner side plate is formed by bending downward from the side edge of the bottom plate, and the outer side plate is formed by bending upward from the end portion of the connecting structure. The side plates on the two sides have a reinforcing effect on the vertical compression resistance of the whole bottom plate, and through actual modeling comparative analysis, when 1800N of pressure is applied to the bottom plates of two antenna reflection plates which are made of the same material and have the same thickness and different bending modes, the stress condition of the material in a common mode exceeds the yield strength of the material, the maximum displacement is 13mm, and the safety factor is only 0.68; the stress of the reflecting plate adopting the bending mode is still within the yield strength of the material, the maximum displacement is 6.9mm, the safety factor is 1.18, and the actual strength advantage brought by the structure of the side plate disclosed by the invention can be seen by referring to tables 1, 2, 3, 4, 5 and 6 in specific comparison effects. In addition, the bottom plate and the side plate are integrally formed, so that the management of various materials and the assembly cost of workers are avoided, meanwhile, the P I M source which is deteriorated due to the assembly of the workers is also avoided in an integrally formed mode, and the debugging time of product inter-modulation is shortened to a certain extent.

The corresponding position department of outer panel and interior plate all is equipped with the hole, and the reinforcing plate can be connected through this hole to even or inhomogeneous interval setting in hole, reinforcing plate in the bottom plate top, the reinforcing plate is shown as figure 1, and the reinforcing plate can further increase the intensity of antenna, and the twisting resistance performance of whole antenna face also obtains strengthening simultaneously.

Fig. 4 is a schematic front view of the present disclosure, and as can be seen from fig. 4, the inner plate, the outer plate and the connecting structure form a groove, and the groove has a choke groove effect, which greatly improves the front-to-back ratio of the whole antenna.

Fig. 5 is a schematic view of a specific embodiment of the side plate, wherein the connecting structure comprises a plane structure and a cambered surface structure, and the upper end of the outer side plate is bent upwards or vertically upwards. When the connection structure is a planar structure, the connection structure is displayed as a horizontal straight line from the main view direction, and when the connection structure is a curved surface structure, the connection structure is displayed as an arc line from the main view direction. The connecting structure of the reflecting plate and the structure of the outer side plate can be selected according to the practical application condition.

The following were used: table 1 shows the stress analysis of a normal reflector, when a pressure of 1800N is applied to the bottom plate of the normal reflector, the maximum stress of the normal reflector is 2.86199e +008N/m 2, and the yield strength of the normal 5052 aluminum plate is 1.95e +008N/m 2, and the maximum stress exceeds the yield strength of the material. As can be seen from Table 4, the maximum stress of the reflective plate of the present invention, in which the base plate is subjected to the same pressure, is 1.64969e +008N/m ^2, which is far lower than that of the conventional reflective plate and is within the yield strength of the material.

Table 2 shows the displacement analysis of the general reflective plate, the maximum displacement of which is 13.0287mm, and the maximum displacement of the reflective plate described in the present application in table 5 is 6.89735mm, which is much lower than that of the general reflective plate. Table 3 shows the safety factor results of the conventional reflective plate, which is 0.681343 minimum, and table 6 shows that the reflective plate of the present application has 1.18204 minimum safety factor, which is much higher than that of the conventional reflective plate.

TABLE 1

TABLE 2

TABLE 3

TABLE 4

TABLE 5

TABLE 6

The foregoing is an exemplary embodiment of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. The utility model provides an electrically tunable antenna reflecting plate which characterized in that includes:

a base plate;

2. An electrically tunable antenna reflector plate according to claim 1, wherein the inner side plate is bent downward from the side of the bottom plate, and the outer side plate is bent upward from the end of the connecting structure.

3. An electrically tunable antenna reflector plate according to claim 2, wherein the connection structure includes a planar structure and an arc-shaped structure.

4. An electrically tunable antenna reflector plate according to claim 3, wherein the upper end of the outer panel is bent upward or vertically upward.

5. An electrically tunable antenna reflector plate according to claim 4, wherein the outer plate and the inner plate are provided with holes at corresponding positions, and a reinforcing plate is connected to the holes and above the bottom plate.

6. An electrically tunable antenna reflector plate according to claim 5, wherein the holes are evenly or unevenly spaced apart in the outer side plate and the inner side plate.

7. An electrically tunable antenna reflector plate according to any one of claims 1-6, wherein the bottom plate and the side plates are integrally formed.

8. A base station antenna, characterized by comprising an antenna body and an electrically tunable antenna reflection plate according to any one of claims 1 to 7.