Base station antenna device with stamped reflector

Abstract

A base station antenna device with a stamped reflector plate comprises a feed plate, a reflector plate, and at least one radiating plate. The reflector plate is made by a stamping process, and at least one reflector plate reinforcing ridge is stamped on the reflector plate. When more than two reflector plate reinforcing ridges are stamped, the reflector plate reinforcing ridges are arranged parallel to each other. The reflector plate is fixedly mounted at the bottom of the feed plate. The reflector plate of the present invention is made by a stamping process, which can greatly reduce the thickness of the reflector plate and reduce the weight of the reflector plate compared to the prior art, thereby reducing the cost of the base station antenna device. In addition, the radiating plate is fixed by a snap-on structure, which is simple to install and has a stable structure, and can further reduce the product cost.

Description

Technical Field

[0001] The present invention relates to wireless communication equipment, and in particular to an antenna device used in wireless communication base station equipment. Background Art

[0002] The antenna device for wireless communication base station in the prior art is provided with a reflector, and the reflector in the prior art is mostly made of extruded profiles, and the thickness of the plate wall is relatively thick, so the weight of the reflector is relatively heavy, which increases the cost of the antenna device. In addition, the antenna device in the prior art also has the problem that the fixing method of the radiation plate is unstable and the cost is relatively high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to avoid the shortcomings of the prior art and to propose a base station antenna device which reduces the cost of the reflector.

[0004] The present invention can solve the technical problem by adopting the following technical solutions:

[0005] A base station antenna device with a stamped reflector is designed and manufactured, comprising a feed plate, a reflector, and at least one radiation plate. The reflector is made by a stamping process, and at least one reflector reinforcement ridge is stamped on the reflector. When more than two reflector reinforcement ridges are stamped, the reflector reinforcement ridges are arranged parallel to each other. The reflector is fixedly mounted at the bottom of the feed plate.

[0006] In order to further enhance the mechanical strength, at least one pit is punched on the reinforcing ridge of the reflector.

[0007] In order to enhance the mechanical strength of the feed board, at least one feed board reinforcement ridge is provided in the feed board, thereby dividing the feed board into at least two feed blocks. When more than two feed board reinforcement ridges are provided, each feed board reinforcement ridge is provided parallel to each other. Any reflector reinforcement ridge is parallel to any feed board reinforcement ridge.

[0008] To ensure consistency, the positions of the reinforcing ridges of the feeding plate correspond one to one with the positions of the reinforcing ridges of the reflecting plate.

[0009] In order to further enhance the mechanical strength of the feed board, a feed board edge ridge is provided on the edge of the feed board.

[0010] In order to provide a stable and reliable installation structure, the feed board is provided with support seats respectively configured for each radiation board, and the support seats and the feed board are integrally formed by injection molding. A feed network is laid on the feed board, and the port ends of the feed network are respectively arranged on the top surface of the support seat. At least two bayonet columns are connected to the top of the support seat. The bayonet column is processed with a bayonet recessed into the bayonet column, and the top end of the bayonet column is processed with a guide slope inclined toward the bayonet. The radiation board is processed with a bayonet column configured for the bayonet column.

[0011] The edge of the hole is elastically connected with a latching tongue. When installing the radiation board, the radiation board is pressed against the top of the support seat configured for the radiation board, and the top of the latching post is inserted into the hole of the radiation board. The latching tongue is guided to elastically deform and move toward the latch by means of the guiding inclined surface. With the help of the elastic restoring force, the latching tongue passes through the latch and extends into the latch. Thus, the radiation board is fixedly connected to the support seat by means of the latching tongue inserted into the latch, ensuring that the radiation board can be coupled with the port of the feeding network.

[0012] Specifically, the support seat includes two columnar support sub-columns. At least one bayonet column is arranged on each support sub-column. Around the axis of the support sub-column, the support sub-column includes a rectangular inner facade, a curved outer facade, and two rectangular side facades respectively connected between the inner facade and the outer facade. The inner facades of the two support sub-columns are arranged opposite to each other and are parallel to each other.

[0013] More specifically, four bayonet posts are arranged around the axial direction of the support seat, the bayonet posts of which are all oriented toward the outside of the support seat, and the bayonet posts of adjacent bayonet posts are oriented perpendicularly to each other.

[0014] Furthermore, the ports of the feeding network arranged on the support base are two groups of mutually orthogonal microstrip balun ports.

[0015] Compared with the prior art, the technical effect of the "base station antenna device with a stamped reflector" of the present invention is:

[0016] The reflector is made by a stamping process, which can greatly reduce the thickness of the reflector and reduce the weight of the reflector compared to the prior art, thereby reducing the cost of the base station antenna device; the reinforced ridges of the reflector not only enhance the mechanical strength of the reflector, but also fit the structural design of the feed plate, which is conducive to the lightweight design of the base station equipment. In addition, the radiation plate is fixed by a snap-on structure, which is simple to install and has a stable structure, which can further reduce the product cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of an axonometric projection of a preferred embodiment of the present invention in an exploded state;

[0018] Figure 2 is a schematic diagram of an axonometric projection of an antenna unit in a decomposed state in the preferred embodiment;

[0019] Figure 3 is an axonometric projection schematic diagram of a support base 22, a bayonet column 23 and a part of a feed network 24 of the antenna unit of the preferred embodiment;

[0020] Figure 4 is a schematic diagram of an orthographic top view of the radiation plate 21 of the preferred embodiment;

[0021] Figure 5It is a schematic cross-sectional view in the main viewing direction of the orthographic projection of the preferred embodiment. DETAILED DESCRIPTION

[0022] The preferred embodiments are further described below in conjunction with the accompanying drawings.

[0023] The present invention provides a base station antenna device with a stamped reflector, such as Figure 1 As shown, it includes a feeding plate 25, a reflecting plate 26, and at least one radiating plate 21. The reflecting plate 26 is made by a stamping process, and at least one reflecting plate reinforcing ridge 263 is stamped on the reflecting plate 26. When there are more than two reflecting plate reinforcing ridges 263, the preferred embodiment of the present invention is as follows: Figure 1 As shown, five reflector reinforcement ridges 263 are provided, and the reflector reinforcement ridges 263 are arranged parallel to each other. The reflector 26 is fixedly installed at the bottom of the feeding board 25.

[0024] The reflector 26 is made by stamping, which can greatly reduce the thickness of the reflector and the weight of the reflector 26 compared with the prior art, thereby reducing the cost of the base station antenna device. The parallel reflector reinforcement ridges 263 enhance the overall mechanical strength of the reflector 26.

[0025] To further enhance the mechanical strength, the preferred embodiment of the present invention is as follows: Figure 1 As shown, at least one concave pit 264 is punched on the reflector reinforcement ridge 263, so that the reflector 26 is not easily deformed.

[0026] The preferred embodiment of the present invention is as follows Figure 1 As shown, at least one feed plate reinforcement ridge 252 is provided in the feed plate 25, so as to divide the feed plate 25 into at least two feed blocks. When more than two feed plate reinforcement ridges 252 are provided, each feed plate reinforcement ridge 252 is provided parallel to each other. Any reflector reinforcement ridge 263 is parallel to any feed plate reinforcement ridge 252.

[0027] The preferred embodiment of the present invention is as follows Figure 1 As shown, three feed plate reinforcement ridges 252 are arranged in the feed plate 25, and the positions of the three feed plate reinforcement ridges 252 correspond one by one to the positions of the three reflector plate reinforcement ridges 263 in the reflector 26, thereby enhancing the consistency of the product structure, contributing to improving the performance of the base station antenna device, and also enabling the reflector plate to fit the structural design of the feed plate, contributing to the lightweight design of the base station equipment.

[0028] In order to ensure the overall strength of the feed board, the preferred embodiment of the present invention is as follows: Figure 1As shown, a feed board edge ridge 251 is provided at the edge of the feed board 25, so that the feed board edge ridge 251 surrounds the feed board 25 as a whole, further enhancing the mechanical strength of the feed board 25 and making it less likely to deform.

[0029] In order to optimize the installation reliability of the base station antenna device and simplify the installation operation, a preferred embodiment of the present invention is as follows: Figures 2 to 5 As shown, the feed plate 25 is provided with support seats 22 respectively configured for each radiation plate 21, and the support seats 22 and the feed plate 25 are integrally formed by injection molding. Each support seat 22 is used to construct a base station antenna unit. In the preferred embodiment of the present invention, the support seats 22 are arranged in an array to form a base station antenna array. The feed plate 25 is provided with a feed network 24 by a selective plastic electroplating process, and the port ends A, B, C, and D of the feed network 24 are respectively arranged on the top surface of the support seat 22. At least two bayonet columns 23 are connected to the top of the support seat 22. The bayonet column 23 is processed with a bayonet 231 recessed into the bayonet column 23, and the top end of the bayonet column 23 is processed with a guide inclined surface 232 inclined toward the bayonet 231. The radiation plate 21 is processed with a clamping hole 211 configured for the bayonet column 23. The edge of the clamping hole 211 is elastically connected with a clamping tongue piece 212. When installing the radiation plate 21, the radiation plate 21 is pressed against the top of the support base 22 configured for the radiation plate 21, and the top end of the bayonet column 23 is inserted into the bayonet hole 211 of the radiation plate 21. The guide slope 232 is used to guide the tongue piece 212 to elastically deform and move toward the bayonet 231. With the help of elastic restoring force, the tongue piece 212 passing through the bayonet 231 extends into the bayonet 231, so that the radiation plate 21 is fixedly connected to the support base 22 by means of the tongue piece 212 engaged in the bayonet 231, ensuring that the radiation plate 21 can be coupled with the port of the feeding network 24.

[0030] The feed plate 25 and the support base 22 of the present invention are integrally formed, with simple process and structure and low cost. The radiation plate 21 is mounted on the support base 22 by a snap-fit ​​structure, the fixing structure is firm, the whole antenna unit assembly process is free of welding, high consistency, simple assembly, improved production efficiency, increased product yield, and reduced product cost.

[0031] The preferred embodiment of the present invention is as follows Figures 2 to 5As shown, the support base 22 includes two columnar support sub-columns 221. At least one bayonet column 23 is arranged on each support sub-column 221. The support base 22 takes the straight line O1O2 as the axis. The two support sub-columns 221 are symmetrically arranged with the axis O1O2 of the support base 22 as the symmetry axis. The two support sub-columns 221 take the straight line P1P2 and the straight line P3P4 as their own axes respectively. Surrounding the axis of the support sub-column 221, the support sub-column 221 includes a rectangular inner facade 2211, a curved outer facade 2212, and two rectangular side facades 2213 respectively connected between the inner facade 2211 and the outer facade 2212. The inner facades 2211 of the two support sub-columns 221 are arranged opposite to each other and parallel to each other. The structure of the support base 22 of the preferred embodiment cooperates with the orthogonal port AB and port CD of the feed network 24 to realize the supporting function of the support base 22 on the radiation plate 21 with a simple structure, and provide port support for the feed network 24.

[0032] The preferred embodiment of the present invention is as follows Figures 2 to 5 As shown, four bayonet columns 23 are arranged around the axial direction O1O2 of the support seat 22. The bayonet 231 of the bayonet column 23 is facing the outside of the support seat 22, and the bayonet 231 of adjacent bayonet columns 23 are perpendicular to each other. Figure 3 As shown, the directions Q1Q2 and Q3Q4 of the bayonet 231 of the two opposite bayonet columns 23 are parallel to each other. The bayonet 231 of the adjacent bayonet columns 23 are perpendicular to each other around the axis O1O2 of the support base 22, which is beneficial to the line setting of the feed network 24 and helps to form a feed signal structure that can suppress interference.

[0033] In order to ensure balanced signal output, the preferred embodiment of the present invention is as follows: Figure 3 As shown, the port AB and the port CD of the feeding network 24 disposed on the support base 22 are two sets of mutually orthogonal microstrip balun ports. The feeding line of the feeding network 24 smoothly transitions along the surface of the support base 22 without sharp corners, which is beneficial to the feedback of the antenna signal.

Claims

1. A base station antenna device with a stamped reflector, comprising a feed plate, a reflector, and at least one radiation plate, characterized in that: The reflector is made by a stamping process, and at least one reflector reinforcement ridge is stamped on the reflector; When there are more than two reflector reinforcement ridges, the reflector reinforcement ridges are arranged parallel to each other. The reflector is fixedly mounted on the bottom of the feeder plate; The feed board is provided with support seats respectively configured for each radiation board, and the support seats and the feed board are integrally formed by an injection molding process; The support base comprises two columnar support sub-columns; each support sub-column is provided with at least one bayonet column; Around the axis of the supporting sub-column, the supporting sub-column includes a rectangular inner facade, a curved outer facade, and two rectangular side facades respectively connected between the inner facade and the outer facade; The inner facades of the two supporting sub-columns are arranged opposite to each other and parallel to each other; A feeding network is laid on the feeding board, and the port ends of the feeding network are respectively arranged on the top surface of the supporting seat; At least one pit is punched on the reinforcing ridge of the reflector plate.

2. The base station antenna device with a stamped reflector according to claim 1, characterized in that: At least one feed board reinforcement ridge is arranged in the feed board, so as to divide the feed board into at least two feed blocks; When there are two or more feed board reinforcement ridges, the feed board reinforcement ridges are arranged parallel to each other; Any one of the reflection plate reinforcement ridges and any one of the feeding plate reinforcement ridges are parallel to each other.

3. The base station antenna device with a stamped reflector according to claim 2, characterized in that: The positions of the reinforcing ridges of the feeding plate correspond one to one with the positions of the reinforcing ridges of the reflecting plate.

4. The base station antenna device with a stamped reflector according to claim 2, characterized in that: A feed board edge ridge is arranged on the edge of the feed board.

5. The base station antenna device with a stamped reflector according to claim 1, characterized in that: At least two bayonet columns are connected to the top of the support seat; the bayonet columns are processed with bayonet recessed into the bayonet columns, and the top of the bayonet column is processed with a guide slope inclined toward the bayonet; The radiation plate is processed with a clamping hole configured for the bayonet column; the edge of the clamping hole is elastically connected with a clamping tongue piece; When installing the radiation board, the radiation board is pressed against the top of the support base configured for the radiation board, and the top of the bayonet column is inserted into the bayonet hole of the radiation board. The guide bevel is used to guide the elastic deformation of the latch piece to move toward the bayonet, and the latch piece passing through the bayonet is extended into the bayonet by means of the elastic restoring force, so that the radiation board is fixedly connected to the support base by means of the latch piece inserted into the bayonet, ensuring that the radiation board can be coupled with the port of the feeding network.

6. The base station antenna device with a stamped reflector according to claim 5, characterized in that: Four bayonet columns are arranged around the axial direction of the support seat; The bayonet holes of the bayonet holes columns are all oriented toward the outside of the support seat, and the bayonet holes of adjacent bayonet holes columns are oriented perpendicularly to each other.

7. The base station antenna device with a stamped reflector according to claim 5, characterized in that: The ports of the feeding network arranged on the support base are two groups of mutually orthogonal microstrip balun ports.

8. The base station antenna device with a stamped reflector according to claim 1, characterized in that: A layer of metal film is plated on the back of the feed plate to form a reflective film.

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