WO2019011137A1

WO2019011137A1 - Low-frequency radiation unit gasket and dual-polarized base station antenna

Info

Publication number: WO2019011137A1
Application number: PCT/CN2018/093820
Authority: WO
Inventors: 李伯汝
Original assignee: 广州杰赛科技股份有限公司
Priority date: 2017-07-13
Filing date: 2018-06-29
Publication date: 2019-01-17
Also published as: CN107528114A; CN107528114B

Abstract

Disclosed in the present invention is a low-frequency radiation unit gasket applicable to connection between a bottom of a low-frequency radiation unit and a reflecting plate. The bottom of the low-frequency radiation unit is provided with a plurality of first lug bosses; each of the first lug bosses is provided with a first through hole through which a fastening piece passes; and the reflecting plate is provided with a plurality of third through holes. The low-frequency radiation unit gasket comprises an insulating body. The top of the insulating body is provided with a plurality of concave parts for nesting the first lug bosses; and the bottom of each of the concave parts is provided with a second through hole extending through the insulating body. The bottom of the insulating body is provided with third lug bosses corresponding to the concave parts; the third lug bosses are used for nesting in the third through holes; and the second through holes extend through the third lug bosses. The top of the insulating body is further provided with a low-frequency radiation unit connector for connecting the low-frequency radiation unit; and the top of the insulating body is further provided with a reflecting plate connector for connecting the reflecting plate. The invention is convenient to install, and has good insulating effect.

Description

Low frequency radiation unit gasket and dual polarization base station antenna

Technical field

The present invention relates to the field of dual-polarization base station antennas for mobile communication base stations, and in particular, to a low-frequency radiating element pad and a dual-polarized base station antenna.

Background technique

At present, the 800/900MHz low-frequency radiating element will be used in a large number of arrays inside the dual-polarized base station antenna, and the contact surface between the bottom flange of the low-frequency radiating element and the reflecting plate must be in close contact, and there should be no gap in the contact area, otherwise it will be serious. Affects the third-order intermodulation index of the dual-polarized base station antenna. However, due to the burr, unevenness, deformation, and uneven fastening caused by the low-frequency radiation unit manufacturing process, the close contact between the flange surface of the low-frequency radiation unit and the reflector is affected, so the bottom spacer is conventionally designed to make the low-frequency radiation unit An insulating layer is formed between the reflecting plates to prevent third-order intermodulation from being affected. Referring to FIG. 1 , the conventional low-frequency radiation unit gasket has a sheet shape and a single shape, and only separates the bottom flange of the low-frequency radiation unit from the reflection plate, which is inconvenient to install and has poor insulation.

Summary of the invention

The purpose of the embodiments of the present invention is to provide a low frequency radiation unit gasket and a dual polarization base station antenna, which are convenient to install and have good insulation.

In order to achieve the above object, an embodiment of the present invention provides a low frequency radiation unit gasket, wherein the low frequency radiation unit gasket is adapted to connect a bottom portion of a low frequency radiation unit and a reflection plate, and the bottom portion of the low frequency radiation unit is provided with a plurality of a protruding portion, the first protruding portion is provided with a first through hole for the fastener to pass through, and the reflecting plate is provided with a plurality of third through holes;

The low frequency radiation unit gasket includes an insulating body, a top portion of the insulating body is provided with a plurality of recesses for nesting the first convex portion, and a bottom portion of the concave portion is provided with a second through hole. a second through hole penetrating through the insulative housing; a bottom portion of the insulative housing is provided with a third protrusion portion corresponding to the recess portion, and the third protrusion portion is configured to be nested in the third through hole, The second through hole penetrates the third convex portion;

The top of the insulative housing is further provided with a low frequency radiating unit connector for connecting the low frequency radiating unit, and the bottom of the insulating body is further provided with a reflector connecting member for connecting the reflecting plate.

Compared with the prior art, a low frequency radiation unit gasket disclosed in the embodiment of the invention is used for nesting the first protrusion portion through the recess portion, so that the first through hole and the second through hole are aligned and aligned, and the third through hole is aligned. The protruding portion is nested with a third through hole for facilitating the installation of the fastener, and functions as an insulation protection fastener. In addition, the low frequency radiation unit is connected through the low frequency radiation unit connecting member, and is connected to the reflection plate through the reflector connection member. Before installing the fastener, the technical solution capable of preventing the low-frequency radiation unit from falling off solves the problem of inconvenient installation and lack of insulation protection in the prior art, and has the advantages of convenient installation and good insulation.

Further, a top portion of the insulative housing is provided with a second protrusion portion, and the recess portion is disposed on the second protrusion portion.

Further, the bottom of the low frequency radiating unit is further provided with a second positioning member, wherein the top of the insulating body is provided with a first positioning member for mating connection with the second positioning member.

Further, the first positioning member is a positioning post, the second positioning member is a positioning hole, and the first positioning member is configured to pass through the second positioning member.

Further, the low frequency radiation unit connector and the reflector connector each include at least two.

Further, the low frequency radiating unit connecting member comprises a first cylindrical body, and a first protruding portion is disposed on a side of the first cylindrical body facing the center of the insulating body, and the first protruding portion is used for the first protruding portion The first bulging portion is provided with a first inclined surface for introducing the low frequency radiation unit.

Further, the reflector connection member includes a second cylindrical body, and a second protrusion is disposed on a side of the second cylindrical body facing away from a center of the insulating body, and the second protrusion is used for the second protrusion The second reflecting portion is provided with a second inclined surface for introducing the reflecting plate.

Further, the third convex portion has a ring shape.

Further, the insulating body is provided with a plurality of cable through holes, and the bottom of the insulating body is further provided with a fourth convex portion surrounding the cable through holes.

Correspondingly, the embodiment of the present invention further provides a dual-polarized base station antenna, including the low-frequency radiation unit gasket provided by the embodiment of the present invention, further comprising a low-frequency radiation unit, a reflector and a fastener, and the low-frequency radiation unit a bottom portion is provided with a plurality of first protrusions, the first protrusion portion is provided with a first through hole, and the reflection plate is provided with a third through hole; wherein the low frequency radiation unit pad is connected to the low frequency radiation a bottom of the unit and the reflector, the first protrusion is nested in the recess, the third protrusion is nested in the third through hole, and the fastener passes through the a third through hole, the second through hole and the first through hole;

The low frequency radiating unit connector is coupled to the low frequency radiating unit, and the reflector connector is coupled to the reflecting plate.

Compared with the prior art, a dual-polarized base station antenna disclosed in the embodiment of the present invention positions the first through hole and the second through hole by the recessed portion in the first protruding portion of the nest, facilitating the fastener. Installation, the third through hole is nested through the third convex portion to serve as an insulation protection fastener, and the low frequency radiation unit is connected through the low frequency radiation unit connection member, and the reflection plate is connected through the reflector connection member to prevent the low frequency radiation unit from falling off. The technical solution solves the problem of inconvenient installation and lack of insulation protection when the low-frequency radiation unit gasket is connected to the low-frequency radiation unit and the reflector in the prior art, and has the advantages of convenient installation and good insulation.

DRAWINGS

1 is a schematic structural view of a prior art low frequency radiation unit gasket;

2 is a schematic structural view of a top portion of a low frequency radiation unit gasket in Embodiment 1 of the present invention;

3 is a schematic structural view of a bottom portion of a low frequency radiation unit gasket in Embodiment 1 of the present invention;

4 is a schematic structural view of a low frequency radiation unit in Embodiment 2 of the present invention;

Figure 5 is a cross-sectional view showing a dual-polarized base station antenna in Embodiment 2 of the present invention;

Figure 6 is an enlarged view of the structure at the mark A in Figure 4.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a schematic structural view of a low frequency radiation unit gasket according to Embodiment 1 of the present invention. The low frequency radiating unit gasket is adapted to connect the bottom of the low frequency radiating unit and the reflecting plate, and the bottom of the low frequency radiating unit is provided with a plurality of first convex portions 21, and the first convex portion 21 is provided with the first for the fastener to pass through. a through hole 22, the reflector is provided with a plurality of third through holes 31;

The low frequency radiation unit gasket includes an insulative housing 11 . The top of the insulative housing 11 is provided with a plurality of recesses 12 for nesting the first protrusions 21 , and the bottom of the recesses 12 is provided with a second through hole 13 , the second pass The hole 13 extends through the insulative housing 11; the bottom of the insulative housing 11 is provided with a third protrusion 15 corresponding to the recess 12, and the third protrusion 15 is for nesting in the third through hole 31, and the second through hole 13 Through the third boss portion 15. Preferably, the third raised portion 15 is annular.

Preferably, the top of the insulative housing 11 is provided with a second raised portion 14 , and the recessed portion 12 is disposed on the second raised portion 14 ; the second raised portion 14 is annular.

When the low frequency radiation unit gasket is mounted on the low frequency radiation unit, the low frequency radiation unit gasket can be positioned by the first convex portion 21 of the low frequency radiation unit by providing the recess portion 12, and the first convex portion 21 can be positioned, the second through hole 13 is fixedly aligned with the first through hole 22; when the low frequency radiation unit gasket and the low frequency radiation unit are mounted and then connected to the reflection plate, the third convex portion 15 of the low frequency radiation unit gasket is nested in the third through hole 31, The fasteners are sequentially passed through the third through hole 31, the second through hole 13 and the first through hole 22 to realize connection of the reflector, the low frequency radiation unit gasket and the low frequency radiation unit; no need to adjust the spacer to align The through hole for the fastener to pass through is convenient and quick to install. In addition, when the fastener passes through the third through hole 31 of the reflector, it is wrapped by the third protrusion 15 that is nested in the third through hole 31, thereby avoiding direct contact between the fastener and the reflector. Short circuit, play the role of insulation protection.

Preferably, the bottom of the third convex portion 15 is provided with a first convex portion 151 protruding downward.

The top of the insulative housing 11 is further provided with a low-frequency radiation unit connector 16 for connecting the low-frequency radiation unit, and the bottom of the insulative housing 11 is further provided with a reflector connection 17 for connecting the reflector.

The use of the low-frequency radiating unit connecting member 16 and the reflecting plate connecting member 17 can avoid the damage caused by the falling of the low-frequency radiating unit during installation, and save the manual and the tooling step of clamping the low-frequency radiating unit.

The bottom of the applicable low frequency radiating unit is further provided with a second positioning member, and the top of the insulating body 11 is provided with a first positioning member 18 for mating connection with the second positioning member. By designing the first positioning member 18, the direction of the low frequency radiation unit gasket is maintained when it is mounted to the low frequency radiation unit.

The first positioning member 18 used in FIG. 1 is a positioning post, the second positioning member is a positioning hole, and the first positioning member 18 is used to pass through the second positioning member. Or, the first positioning member 18 is a positioning hole, the second positioning member is a positioning post, and the first positioning member 18 is used for the second positioning member to pass through.

The low frequency radiation unit connector 16 and the reflector connection 17 each include at least two.

The low frequency radiating unit connector 16 includes a first cylindrical body 161, and a first protruding portion 162 is disposed on a side of the first cylindrical body 161 facing the center of the insulating body 11, and the first protruding portion 162 is used for engaging low frequency radiation. The unit, the top of the first projection 162 is provided with a first inclined surface 163 for introducing the low frequency radiation unit. Referring to FIG. 4, when the low frequency radiation unit gasket is mounted on the low frequency radiation unit, the bottom of the low frequency radiation unit is a flange, and the first protruding portion 162 is snapped on the top of the flange to realize the low frequency radiation unit. The gasket is attached to the low frequency radiating element.

The reflector connector 17 includes a second cylindrical body 171. The second cylindrical body 171 is provided with a second protrusion 172 on a side facing away from the center of the insulative housing 11, and the second protrusion 172 is used to engage the reflector. The top of the second projection 172 is provided with a second inclined surface 173 for introducing the reflection plate. The reflector is provided with an opening, and the second cylindrical body 171 passes through the opening to engage the second protrusion 172 on the reflector, so that the low frequency radiation unit gasket is fixed on the reflector. Generally, when the low-frequency radiation unit of the installed low-frequency radiation unit gasket is mounted on the reflector, it is often necessary to invert the reflector to install the fastener, and the reflector connector 17 is provided to fix the low-frequency radiation unit without manual clamping. The low frequency radiating element can prevent the low frequency radiating element from falling off.

2 is preferably provided with two low-frequency radiation unit connectors 16 at the top of the low-frequency radiation unit gasket, which can ensure that the low-frequency radiation unit gasket can be stably fixed on the low-frequency radiation unit during installation, and saves material. Similarly, in FIG. 3, two reflector connection members 17 of symmetrical position are preferably disposed at the bottom of the low frequency radiation unit spacer.

In addition, the insulative housing 11 is provided with a plurality of cable through holes, the cable through holes are used for the cables to pass through, and the bottom of the insulative housing 11 is further provided with a fourth protrusion 19 surrounding the cable through holes. The four raised portions 19 are for nesting in the cable openings reserved on the reflector, and the cable openings are for the cables to pass through the reflector. The fourth raised portion 19 is preferably annular. Since the fourth protrusion 19 is nested in the cable opening of the reflector, the cable is wrapped by the fourth protrusion 19 when passing through the reflector to prevent the cable from being scratched and to protect the cable.

Preferably, the fourth protrusion 19 has an annular protrusion, and the bottom of the fourth protrusion 19 is provided with a second protrusion 191 protruding downward.

In a specific implementation, when the low frequency radiation unit gasket is connected to the low frequency radiation unit and the reflection plate, the first inclined surface 163 is introduced into the bottom of the low frequency radiation unit, and the low frequency radiation unit connection member 16 is coupled to the low frequency radiation unit, and the first positioning member 18 is used for a second positioning member connecting the low-frequency radiation unit, the recess portion 12 is for nesting the first convex portion 21, and the first through hole 22 and the second through hole 13 are connected; then, the second inclined surface 173 is used for introducing the reflection The plate, the reflector connector 17 is coupled to the reflector, the third boss 15 is nested in the third through hole 31, and the fourth boss 19 is nested in the cable opening.

Compared with the prior art, the embodiment has good insulation, convenient installation, anti-drop design and anti-adhesive assembly design, and can prevent the cable from being scratched by the reflector.

Embodiment 2 of the present invention further provides a dual-polarized base station antenna, see FIG. 5 and FIG. 6, FIG. 5 is a cross-sectional view of the third embodiment, and FIG. 6 is an enlarged view of the portion A in FIG. The second embodiment includes a low frequency radiation unit gasket provided by the first embodiment of the present invention. The specific structure of the low frequency radiation unit gasket is not described herein. In addition, the second embodiment further includes a low frequency radiating unit 2, a reflecting plate 3, and a fastener.

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of the low frequency radiating unit 2 included in the embodiment. The bottom of the low frequency radiating unit 2 is provided with a plurality of first protruding portions 21, and the first protruding portion 21 is provided with a first through hole. twenty two.

Referring to FIG. 5, the reflecting plate 3 is provided with a third through hole 31.

The low frequency radiation unit spacer 1 is connected to the bottom of the low frequency radiation unit 2 and the reflection plate 3, wherein the first protrusion portion 21 is nested in the recess portion 12, and the third protrusion portion 15 is nested in the third through hole 31.

The fastener passes through the third through hole 31, the second through hole 13 and the first through hole 22; specifically, when the fastener passes through the third through hole 31, is nested in the third through hole 31 The third raised portion 15 is wrapped. The schematic structure of the fastener is not shown in FIG.

The low frequency radiating unit connector 16 is connected to the low frequency radiating unit 2, and the reflecting plate connecting member 17 is connected to the reflecting plate 3.

In general, when the low-frequency radiating unit 2 of the mounted low-frequency radiating unit spacer 1 is mounted on the reflecting plate 3, it is often necessary to invert the reflecting plate 3 to mount the fastener. The low frequency radiating unit 2 is fixed to the reflecting plate 3 based on the low frequency radiating unit connecting member 16 being coupled to the low frequency radiating unit 2, and the reflecting plate 3 is coupled to the reflecting plate 3, so that the manual fastener is not required when installing the fastener. The low frequency radiation unit 2 can be prevented from falling off.

Further, the reflector 3 is provided with a slot, and the reflector connector 17 is snapped into the slot to engage the reflector 3, thereby fixing the low frequency radiating element spacer 1 to the reflector 3.

Preferably, the bottom of the low frequency radiating unit 2 is further provided with a second positioning member 23, and the second positioning member 23 and the first positioning member 18 are connected in a pair.

Preferably, as shown in FIG. 2 and FIG. 4 , the first positioning member 18 is used as a positioning post, and the second positioning member 23 is a positioning hole, and the first positioning member 18 is configured to pass through the second positioning member 23 . Or, the first positioning member 18 is a positioning hole, the second positioning member 23 is a positioning post, and the first positioning member 18 is used for the second positioning member 23 to pass through.

The reflector plate 3 is provided with a plurality of cable openings; the fourth boss portion 19 is for nesting in the cable opening. When the cable passes through the reflector 3, it is wrapped by the fourth boss 19 to prevent the cable from being scratched and to protect the cable.

In a specific implementation, the low frequency radiating unit pad 1 is connected to the low frequency radiating unit 2 and the reflecting plate 3, the low frequency radiating unit connecting member 16 is coupled to the low frequency radiating unit 2, and the first positioning member 18 is connected to the second positioning member 23 of the low frequency radiating unit 2, The recessed portion 12 is nested with the first raised portion 21, and the first through hole 22 and the second through hole 13 are in communication; the reflector connection member 17 is coupled to the reflective plate 3, and the third raised portion 15 is nested in the third through hole 31. The fourth protruding portion 19 is nested in the cable opening, and the fastener sequentially passes through the third through hole 31, the second through hole 13 and the first through hole 22, so that the low frequency radiation unit pad 1 is connected to the low frequency radiation. Unit 2 and reflector 3.

Compared with the prior art, the present embodiment provides good insulation and positioning functions, convenient installation, anti-drop design and anti-adhesive assembly design, and can avoid the cable being scratched by the reflector; the overall improvement of the dual-polarized base station antenna Order intermodulation performance.

The orientation descriptions for the low frequency radiating element pads, the low frequency radiating elements, the reflecting plates, and the dual polarized base station antennas in all embodiments of the present invention are referenced to the placement orientations shown in Figures 2 and 4.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A low frequency radiation unit gasket, wherein the low frequency radiation unit gasket is adapted to connect a bottom portion of a low frequency radiation unit and a reflection plate, and a bottom portion of the low frequency radiation unit is provided with a plurality of first convex portions, The first protrusion is provided with a first through hole for the fastener to pass through, and the reflection plate is provided with a plurality of third through holes;

The low frequency radiation unit gasket includes an insulating body, a top portion of the insulating body is provided with a plurality of recesses for nesting the first convex portion, and a bottom portion of the concave portion is provided with a second through hole. a second through hole penetrating through the insulative housing; a bottom portion of the insulative housing is provided with a third protrusion portion corresponding to the recess portion, and the third protrusion portion is configured to be nested in the third through hole, The second through hole penetrates the third convex portion;

The top of the insulative housing is further provided with a low frequency radiating unit connector for connecting the low frequency radiating unit, and the bottom of the insulating body is further provided with a reflector connecting member for connecting the reflecting plate.
The low frequency radiation unit gasket according to claim 1, wherein a top portion of the insulating body is provided with a second convex portion, and the concave portion is disposed on the second convex portion.
The low frequency radiation unit gasket according to claim 2, wherein the bottom of the low frequency radiation unit is further provided with a second positioning member, wherein a top portion of the insulating body is provided for the second positioning member The first positioning member of the mating connection.
The low frequency radiation unit gasket according to claim 1, wherein the first positioning member is a positioning post, the second positioning member is a positioning hole, and the first positioning member is configured to pass through the first Two positioning parts.
A low frequency radiating element spacer according to claim 1, wherein said low frequency radiating unit connection member and said reflecting plate connecting member each comprise at least two.
A low frequency radiation unit gasket according to claim 1, wherein said low frequency radiation unit connector comprises a first cylindrical body, and said first cylindrical body is provided on a side facing a center of said insulating body a first protruding portion for engaging the low frequency radiating unit, and a top portion of the first protruding portion is provided with a first inclined surface for introducing the low frequency radiating unit.
A low frequency radiating element spacer according to claim 1, wherein said reflecting plate connecting member comprises a second cylindrical body, and said second cylindrical body is provided on a side facing away from a center of said insulating body a second protruding portion for engaging the reflecting plate, and a top portion of the second protruding portion is provided with a second inclined surface for introducing the reflecting plate.
The low frequency radiating element spacer of claim 1 wherein said third raised portion is annular.
The low frequency radiation unit gasket according to claim 1, wherein the insulating body is provided with a plurality of cable through holes, and the bottom of the insulating body is further provided with a fourth surrounding the cable through holes. Raised portion.
A dual-polarized base station antenna, comprising the low-frequency radiating element spacer according to any one of claims 1 to 9, further comprising a low-frequency radiating unit, a reflecting plate and a fastener, wherein the bottom of the low-frequency radiating unit is provided a first protrusion, the first protrusion is provided with a first through hole, and the reflector is provided with a third through hole; wherein the low frequency radiation unit pad is connected to the bottom of the low frequency radiation unit and In the reflector, the first protrusion is nested in the recess, the third protrusion is nested in the third through hole, and the fastener passes through the third pass a hole, the second through hole and the first through hole;

The low frequency radiating unit connector is coupled to the low frequency radiating unit, and the reflector connector is coupled to the reflecting plate.