CN212114010U

CN212114010U - Antenna structure

Info

Publication number: CN212114010U
Application number: CN202020987295.7U
Authority: CN
Inventors: 陈德智; 魏珂
Original assignee: Shanghai Amphenol Airwave Communication Electronics Co Ltd
Current assignee: Shanghai Amphenol Airwave Communication Electronics Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-12-08
Anticipated expiration: 2030-06-02

Abstract

The utility model provides an antenna structure, include: the antenna comprises a polymer bracket, a power distribution network and an antenna oscillator; the polymer bracket comprises a first polymer bracket and a second polymer bracket which are integrally formed by injection molding; the power distribution network is attached to the second polymer bracket in an electroplating or chemical plating mode; the antenna oscillator is arranged on the first side face of the polymer support. Compared with the prior art, the utility model has the advantages of with low costs, process are simple.

Description

Antenna structure

Technical Field

The utility model relates to a communication technology, concretely relates to antenna structure.

Background

At present, in the field of small base stations of base stations, the scheme of integrating an antenna oscillator and a power distribution network (power distribution network) on one product can be used for realizing modular production, improving the overall yield of the product and reducing the antenna assembly working hour and the yield. The existing integration scheme is 1. the power distribution network adopts a high-frequency PCB, and the antenna oscillator and the balun adopt the high-frequency PCB or FR4PCB, which has the defects that the high-frequency PCB is expensive in price ratio, more in assembly time, more in unit price of the whole product and low in yield; 2. the power distribution network adopts a high-frequency PCB, the antenna oscillator adopts a sheet metal scheme, and the antenna oscillator is welded on the PCB, so that the price is reduced to some extent compared with the first scheme. But the overall cost is not obviously reduced because the high-frequency PCB is still provided; 3. selective plating of plastic parts, such as LDS (LDSER DIRECT stuctrue) or LMP (laser MODIFIED plating), integrates a power distribution network and an antenna into one plastic part, and has the disadvantages that both LDS and LMP processes require laser pre-plating treatment, and thus, the process is complicated, the productivity is not high, and the yield is not high. The overall cost is high.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing an antenna structure. The technical scheme of the utility model as follows:

an antenna structure comprising: the antenna comprises a polymer bracket (100), a power distribution network (50) and an antenna oscillator (30); the polymer bracket (100) comprises a first polymer bracket (10) and a second polymer bracket (20) which are integrally formed by injection molding; the power distribution network (50) is attached to the second polymer bracket (20) in an electroplating or chemical plating mode; the antenna oscillator (30) is arranged on the first side face of the polymer support (100).

Optionally, the antenna element (30) is attached to the polymer support (100) by hot melting, gluing or insert injection molding.

Optionally, the antenna structure further comprises: and the reflecting plate (40), wherein the reflecting plate (40) is connected to the second side surface of the polymer bracket (100).

Optionally, the antenna structure further comprises a connector comprising a connector ground portion and a connector feed pin connected; the connector grounding part is connected with the reflecting plate, and the connector feed pin is connected with the power distribution network.

Optionally, the power distribution network is provided with a hole, and the connector feed pin is connected with the hole.

Optionally, the first polymer support (10) is not plated.

Compared with the prior art, the utility model discloses antenna structure's low in manufacturing cost, process are simple.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of an antenna structure according to an embodiment of the present invention;

FIG. 2 is a simplified schematic diagram of the formation of a polymer scaffold according to an embodiment of the present invention;

FIG. 3 is a schematic view of a second side of a polymer support according to an embodiment of the present invention;

fig. 4 is a schematic view of a first side of a polymer support according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the present embodiment discloses an antenna structure, including: the antenna comprises a polymer bracket 100, a power distribution network 50, an antenna oscillator 30 and a reflecting plate 40; the polymer bracket 100 comprises a first polymer bracket 10 and a second polymer bracket 20 which are integrally formed by injection molding; the power distribution network 50 is attached to the second polymer support 20 by electroplating or chemical plating; the first polymer scaffold 10 is not plated.

The antenna element 30 is attached to the first side of the polymer support 100 by hot melting, gluing or insert molding. The reflective plate 40 is connected to the second side of the polymer support 100.

A plurality of grooves 101 are formed in the second side surface of the polymer support 100; the power distribution network 50 is provided with a feeding point 501, and a plurality of U-shaped feeding pieces 502 are correspondingly arranged in each groove of the power distribution network.

A plurality of protrusions 102 are arranged on the first side surface of the polymer bracket 100, and each protrusion corresponds to one groove; each protrusion is provided with a plurality of hot melting points 1021 for mounting the antenna element.

Wherein the antenna structure further comprises a connector as a feeding component.

The connector comprises a connector grounding part and a connector feeding pin which are connected; the connector grounding part is connected with the reflecting plate, and the connector feed pin is connected with the power distribution network.

The power distribution network is provided with a hole, and the connector feed pin is connected with the hole.

In this embodiment, the power distribution network circuit is mounted on the polymer support by using a two-color injection molding method, and then the antenna element is fixed on the polymer support by using a hot melt or adhesive method. The antenna oscillator is fixed on the high-molecular (or insulating material) support by adopting a metal plate or PCB (printed Circuit Board), or FPC (Flexible printed Circuit), scheme hot melting, viscose or insert injection molding method.

Referring to fig. 2, a first polymer stent 10 is two-shot molded. And second injection molding the second polymer support 20. And then the second polymer support is coated with the power distribution network 50. The first shooting material can be PPS, PA, PC/ABS and other materials which are not easy to plate; the second shot material may be ABS, PC/ABS, PC, or other relatively easy to plate material. The melting temperature of the first shot material is higher than that of the second shot material.

And (4) carrying out chemical plating after injection molding, and carrying out power division networking plating on metal. The first shot is not plated with metal because the first shot is not plated easily. The plating metal can be first plating copper plating and then nickel plating; or the first plating layer is plated with copper and then plated with silver; or the first plating layer is plated with copper and then plated with nickel and then plated with gold; or the first plating layer is plated with copper and then plated with tin; or the first plating layer is nickel. The first plating layer is usually selectively plated, and the second third plating layer can be plated or electroplated. The power distribution network and the device interface can be connected by welding or contact.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. An antenna structure, comprising: the antenna comprises a polymer bracket (100), a power distribution network (50) and an antenna oscillator (30); the polymer bracket (100) comprises a first polymer bracket (10) and a second polymer bracket (20) which are integrally formed by injection molding; the power distribution network (50) is attached to the second polymer bracket (20) in an electroplating or chemical plating mode; the antenna oscillator (30) is arranged on the first side face of the polymer support (100).

2. The antenna structure according to claim 1, characterized in that the antenna element (30) is attached to the polymer support (100) by means of hot melt, glue or insert molding.

3. The antenna structure of claim 1, further comprising: and the reflecting plate (40), wherein the reflecting plate (40) is connected to the second side surface of the polymer bracket (100).

4. The antenna structure of claim 3, further comprising a connector including a connector ground and a connector feed pin connected; the connector grounding part is connected with the reflecting plate, and the connector feed pin is connected with the power distribution network.

5. An antenna structure according to claim 4, characterized in that the power dividing network is provided with a hole, to which the connector feed pin is connected.

6. The antenna structure according to claim 1, characterized in that the first polymer support (10) is not plated.