WO2016082137A1

WO2016082137A1 - Antenna assembly, antenna, and small-cell base station

Info

Publication number: WO2016082137A1
Application number: PCT/CN2014/092336
Authority: WO
Inventors: 赵书晨; 史荣涛; 邓长顺; 龙科
Original assignee: 华为技术有限公司
Priority date: 2014-11-27
Filing date: 2014-11-27
Publication date: 2016-06-02
Also published as: EP3214696B1; EP3214696A4; CN105900283B; CN105900283A; CA2969001C; EP3214696A1; CA2969001A1

Abstract

Embodiments of the present invention provide an antenna assembly, applicable to a small-cell base station. The antenna assembly comprises a radiating patch, a feeding structure, and at least two grounding structures, wherein the feeding structure and the grounding structures are located on the same side of the radiating patch. The grounding structures are symmetrically disposed on the radiating patch by using the feeding structure as a center. An antenna configured with the antenna assembly has small volume and uniform signal coverage, and the signal coverage effect of the small-cell base station can be improved.

Description

Antenna component, antenna and small station

Technical field

The present invention relates to wireless communication technologies, and in particular, to an antenna component, an antenna, and a small station.

Background technique

By flexibly arranging small-cell base station equipment, such as indoor small base station products, within the coverage of the macro base station, some blind spot areas and hotspot areas within the coverage of the macro base station can be seamlessly covered, and the macro base station edge coverage can be improved. Increase the network capacity of users in the area. The small station is different from the base station form of the macro base station, and needs to meet the requirements of miniaturization in terms of specifications, volume, weight, and the like.

In the prior art, indoor small base station products use the built-in antenna more and more, and it is desirable to achieve omnidirectional coverage on the coverage, and the circularity of the direction is relatively high. Due to the continuous reduction of the size of the base station, the traditional distributed antenna system (DAS) has been unable to meet the needs of miniaturization of the base station.

Summary of the invention

The embodiment of the invention provides an antenna component and an antenna, which have small volume and good signal coverage.

In a first aspect, an embodiment of the present invention provides an antenna component that is used in a small station, the antenna component includes a radiation piece, a feeding structure, and at least two grounding structures, and one end of the feeding structure The radiating sheets are connected, one end of each of the grounding structures is connected to the radiating sheet, and the feeding structure and the grounding structure are located on the same side of the radiating sheet; wherein the at least two grounding structures are Centered on the feed structure, symmetrically disposed on the radiation sheet.

In a first possible implementation manner of the first aspect, the feeding structure includes a first structure and a second structure, wherein one end of the first structure is connected to the radiation piece, and the second A structure is coupled to the other end of the first structure, the projected area of the first structure being greater than the projected area of the second structure.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation of the first aspect, the projected area of the first structure is N of the projected area of the second structure Times, N is an integer greater than one.

In conjunction with any of the above possible implementations, in a third possible implementation of the first aspect, the first structure is a metal cylinder, and the second structure is a metal cylinder or a rectangular metal foil.

In a fourth possible implementation manner of the foregoing aspect, the height of the ground structure is proportional to the working bandwidth of the antenna configuring the antenna component, and the antenna component is The height is greater than the height of the ground structure.

In a fifth possible implementation manner of the first aspect, the shape of the radiation piece is a central symmetric or axisymmetric figure.

In combination with any of the foregoing possible implementation manners, in a sixth possible implementation manner of the first aspect, the number of the ground structures is proportional to a working frequency band of an antenna configuring the antenna component.

With reference to any one of the foregoing possible implementation manners, in a seventh possible implementation manner of the first aspect, the feeding structure is located in a central area of the radiation piece, and the central area is at a center of the radiation piece In the center of the circle, one tenth of a wavelength is a region of a diameter, wherein the wavelength is an electromagnetic wave wavelength corresponding to an operating frequency band of an antenna in which the antenna component is disposed.

In conjunction with any one of the foregoing possible implementations, in an eighth possible implementation manner of the first aspect, the at least two ground structures are located in an edge region of the radiation sheet, and the edge region is a distance from the radiation sheet An edge of a tenth wavelength region, wherein the wavelength is an electromagnetic wave wavelength corresponding to an operating frequency band of an antenna configuring the antenna component.

In a second aspect, an embodiment of the present invention provides an antenna, which is used in a small station, and includes the antenna component of any one of the first aspect, and a reflector, wherein the ground structure of the antenna component is a reflector is connected, a gap exists between the feeding structure of the antenna component and the reflector, a projection area of the reflector is larger than a projection area of the radiation piece of the antenna component, and a projection area of the reflector includes a projection area of the radiation sheet.

In a first possible implementation manner of the second aspect, a gap between the feeding structure of the antenna component and the reflector is 0.5 mm or more and 1 mm or less.

In a third aspect, an embodiment of the present invention provides a small station, including the antenna provided by the second aspect.

Embodiments of the present invention provide an antenna component suitable for use in a small station. The antenna component includes a radiating sheet, a feeding structure on the same side of the radiating sheet, and at least two grounding structures, wherein the grounding structure is symmetrically disposed on the radiating sheet centering on the feeding structure. The embodiment of the invention further provides an antenna for configuring the antenna component and a small station. The antenna of the antenna component is small in size and uniform in signal coverage, which can improve the signal coverage of the small station.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are some of the present invention. For the embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

1 is a front elevational view of an antenna component according to an embodiment of the present invention;

2 is a top plan view of another antenna component according to an embodiment of the present invention;

3 is a top view of another antenna component according to an embodiment of the present invention;

4 is a front elevational view of another antenna component according to an embodiment of the present invention;

FIG. 5 is a front elevational view of an antenna according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a small station according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the 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.

The antenna component described in the embodiments of the present invention can be applied to various communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile Communications (GSM), general packet radio services ( GPRS (General Packet Radio Service) system, Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wideband Code Division Multiple Access (WCDMA) ), Worldwide Interoperability for Microwave Access (WIMAX) system, Long Term Evolution (LTE) system, and LTE subsequent evolution system.

The antenna component or antenna provided by the embodiment of the present invention can be applied to various communication devices that need to perform signal transmission and reception, and can be used, for example, in a base station device. The base station device in the embodiment of the present invention may be a base transceiver station (BTS, Base Transceiver Station) in a GSM system, a Node B (Node B) in a WCDMA system, and an evolved Node B (e-NodeB) in an LTE communication system. , evolved NodeB) or similar device in a LTE subsequently evolved communication system. Specifically, the antenna component or the antenna provided by the embodiment of the present invention can be used for transmitting and receiving radio frequency signals of a base station, for example, a device installed in a base station or a remote radio unit (RRU).

In particular, due to the small size, the antenna component or antenna provided by the embodiment of the present invention is suitable for use in a small station, for example, can be used in an internal antenna of an indoor small base station product.

FIG. 1 is a front elevational view of an antenna component according to an embodiment of the present invention. The antenna component can be used in a small station.

The antenna component 1 includes a radiating plate 11, a feeding structure 12, a first grounding structure 131, and a second grounding structure 132. As shown in FIG. 1, one end of the feeding structure 12 is connected to the radiating plate 11, and the first grounding structure 131 One end of the second grounding structure 132 is connected to the radiation piece, and the feeding structure 12 and the first grounding structure 131 and the second grounding structure 132 are located on the same side of the radiation piece.

The first ground structure 131 and the second ground structure 132 are symmetrically disposed on the radiation sheet 11 with the feed structure 12 as a center.

Optionally, the feeding structure 12, the first grounding structure 131, and the second grounding structure 132 may be parallel to each other; optionally, any one or more of the feeding structure 12, the first grounding structure 131, and the second grounding structure 132 The one may be slightly inclined or slightly curved or folded, and does not affect the performance of the antenna component 1 provided by the embodiment of the present invention.

Alternatively, the radiation sheet 11 may be a metal piece of a centrally symmetric or axisymmetric shape, or a metal piece of approximately central or axially symmetric shape, in which case the feed structure 12 may be disposed on the radiation piece 11 a center point or an area close to the center point. Alternatively, the center point may be a geometric center of the radiation sheet 11; optionally, the radiation sheet 11 may also be an irregularly shaped metal piece. In this case, the feed structure It may be placed at or near the geometric center of the irregularly shaped sheet metal.

In practical applications, the shape of the radiation piece can be appropriately cut according to the installation position of the antenna component, the volume requirement of the antenna, etc., without cutting the performance of the antenna, for example, cutting the circular radiation piece into a fan shape, etc. It is possible to maintain the radiant sheet in a symmetrical shape, which is advantageous for uniform coverage of the signal.

It can be understood that the geometric center includes a position in a mathematical sense such as a center of gravity, a center of gravity, an inner core, and an outer core. In the case where the radiation sheet is a regular pattern, such as an equilateral triangle, the above geometric centers are coincident, and those skilled in the art The feed structure 12 can be installed in the vicinity of the position or in the vicinity of the position. The embodiment of the present invention does not specifically limit this.

As shown in FIG. 1, the radiation sheet 11 may be a circular metal piece. The radiation sheet 11 may also be a metal sheet of any other shape, such as a triangle, a rectangle, or the like, which is not limited in this embodiment of the present invention.

Wherein, in one embodiment, the feed structure 12 is located in a central region 14 of the radiation sheet 11, the central region 14 being centered at a center point of the radiation sheet 11, one tenth of a wavelength (λ) being a diameter Area.

The wavelength refers to the wavelength of the electromagnetic wave corresponding to the operating frequency band of the antenna in which the antenna component is disposed.

It can be understood that the feeding structure 12 can be disposed at any position within the central region 14 described above, for example, can be installed at the center point of the radiation sheet 11, as shown in FIG. 1; or can be a non-central point and no more than twenty from the center point. In the position of one wavelength, that is, the position close to the center point, the embodiment of the present invention does not limit this.

It should be noted that the “symmetric setting” described in the embodiment of the present invention means that a plurality of grounding structures are centered on the feeding structure and are substantially uniformly distributed around the feeding structure. Wherein, the substantially uniform means that the relative position between each grounding structure and the feeding structure is allowed to have a certain deviation, including the distance of each grounding structure to the feeding structure is substantially equal, for example, allowing each grounding structure to the feeding structure The deviation between the distances may be less than 30%; and the angle between each two adjacent ground structures to the connection of the feed structure is substantially equal, for example, allowing each adjacent two ground structures to feed The deviation of the angle of the connection of the structure may be below 30°. It can be understood that any combination of the distance deviation and the angle deviation between the ground structure and the feed structure within the allowable range falls within the protection scope of the embodiment of the present invention, and the above-mentioned allowable distance deviation or the angle deviation is not The technical effect of the technical solution of the present invention is affected.

Optionally, as shown in FIG. 1 , the first ground structure 131 and the second ground structure 132 are respectively located on two sides of the feed structure 12 , and are in line with the feed structure 12 , and the first ground structure 131 and the second The distance a1, a2 of the ground structure 132 to the feed structure 12 is equal, the first ground structure 131, the second The angles A1 and A2 between the grounding structures 132 and the connecting lines of the feeding structure 12 are equal, and A1=A2=180°, that is, the first grounding structure 131 and the second grounding structure 132 have the feeding structure 12 as the axis of symmetry. Or a center of symmetry, which is distributed symmetrically or centrally symmetrically on the radiation sheet 11.

Optionally, the first ground structure 131 and the second ground structure 132 may be distributed in the edge region 15 of the radiation sheet 12, and the edge region 15 is a ring of the edge of the radiation sheet to a wavelength one tenth of the distance from the edge of the radiation sheet. region.

As shown in FIG. 1, the feed structure 12 can be a cylindrical metal structure, ie, a metal cylinder, or a metal structure that is nearly cylindrical. Alternatively, the diameter of the metal cylinder may take any value between [2 mm, 5 mm].

Alternatively, in another embodiment of the invention, the feed structure 12 may also be a rectangular metal foil, or a nearly rectangular metal foil. Alternatively, the width of the rectangular metal foil may take any value between [2 mm, 5 mm].

As shown in FIG. 1, the first ground structure 131 and the second ground structure 132 may be metal cylinders or metal structures close to a cylinder. Alternatively, the diameter of the metal cylinder may be any value between [2 mm, 5 mm].

Optionally, in another embodiment of the present invention, the first ground structure 131 or the second ground structure 132 may also be a rectangular metal foil, or a nearly rectangular metal foil. Optionally, the width of the rectangular metal foil may be It is any value between [2mm, 5mm].

Optionally, the height of the antenna component 1 of the first ground structure 131 or the second ground structure 132 may be determined according to a bandwidth and an operating frequency band of an antenna configuring the antenna component 1. Optionally, the first ground structure 131 or the second ground structure The height of the 132 antenna component 1 is proportional to the bandwidth of the antenna. The height of the antenna component 1 is greater than the height of the ground structure, which is the sum of the height of the ground structure and the thickness of the radiation piece. Since the radiation piece 11 is a metal foil, the height of the antenna component 1 can be the first ground structure 131 and the second ground. The height of the structure 132 is determined, that is, the height of the antenna component is consistent with the height of the ground structure. Therefore, the height of the ground structure can be determined according to the antenna bandwidth and the operating frequency band. This hair The height of the antenna component 1 is not particularly limited. For example, the first ground structure 131 and the second ground structure 132 may be set to 10 mm. Since the feed structure 12 cannot be directly grounded, it may be set to be shorter than the ground structure by 0.5. Between mm and 1 mm, for example, it can be set to 9.5 mm.

It can be understood that the first ground structure 131 and the second ground structure 132 can be of equal height.

It can be understood that the first ground structure 131 and the second ground structure 132 may be metal structures of the same shape, for example, all metal cylinders or rectangular metal foils; or metal structures of different shapes, for example, one is a metal cylinder, and the other is a metal cylinder. One embodiment is a rectangular metal foil, that is, the height of the two grounding structures is substantially the same, and the distribution is symmetrically distributed. It can be understood that the first ground structure 131 or the second ground structure 132 may also be a shape close to a cylinder or a rectangle, and a slightly irregular shape setting does not affect the performance of the antenna component 1 provided by the embodiment of the present invention.

Alternatively, as another embodiment of the present invention, the antenna component 1 may include more than three ground structures. As shown in Fig. 2, a first ground structure 131', a second ground structure 132', and a third ground structure 133' are symmetrically disposed on the radiation sheet 11 centering on the feed structure 12.

As shown in FIG. 2, the first ground structure 131', the second ground structure 132', and the third ground structure 133' are evenly distributed within the edge region 15, and the feed structure 12 is located within the central region 14. The distances from the first ground structure 131', the second ground structure 132', and the third ground structure 133' to the feed structure 12 are b1, b2, b3, respectively, and satisfy b1 = b2 = b3, the first ground structure 131', The angle between the second grounding structure 132' and the third grounding structure 133' to the connecting line of the feeding structure 12 is B1, B2, B3, respectively, and B1 = B2 = B3 = 120° is satisfied. That is, the connecting lines between the three ground structures may constitute an equilateral triangle.

Optionally, in other embodiments of the present invention, the connection lines of the first ground structure 131', the second ground structure 132', and the third ground structure 133' may also form an approximate equilateral triangle, that is, allow b1≈ B2≈b3, B1≈B2≈B3, for details, refer to the related description of the embodiment shown in FIG. 1, and no further details are provided herein.

In this embodiment, the projection point of the feed structure 12 can be located near the center point or center point of the equilateral triangle.

Similarly, as shown in FIG. 3, when the antenna component 1 includes four ground structures 16, the connection lines of the four ground structures 16 form a square; alternatively, the connection lines of the four ground structures 16 may also Form an approximate square. The projection point of the feed structure 12 is located near the center point or center point of the square. For details, refer to the related description in other embodiments of the present invention, and no further details are provided herein.

In the embodiment of the present invention, the area of the radiation sheet 11 is related to the antenna operating frequency band. Specifically, the area of the radiation sheet 11 is proportional to the wavelength of the signal, and the wavelength is inversely proportional to the frequency. Therefore, the higher the antenna operating frequency band, the smaller the area of the radiation sheet 11 can be. For example, when the antenna using the antenna component 11 operates in a frequency band of 1.7 G to 2.1 G, the diameter of the radiation piece 11 can be selected between [30 mm, 40 mm]; when the antenna operates in a frequency band of 2.3 G to 2.6 G, The diameter of the radiation sheet 11 can be selected between [20 mm, 30 mm], and a person skilled in the art can set a suitable area of the radiation sheet according to the actual requirements of the antenna performance, which is not limited in the embodiment of the present invention.

It should be noted that the number of ground structures is related to the operating frequency band of the antenna in which the antenna component is disposed. Optionally, when the number of ground structures is larger, the working frequency band of the antenna configuring the antenna component will be biased toward the high frequency portion, that is, the number of ground structures is proportional to the operating frequency band of the antenna. In combination with the inverse proportional relationship between the area of the radiation patch and the operating frequency band of the antenna, in the case of a large number of grounding structures, in order to ensure that the antenna can work normally in a specific lower frequency band, it is necessary to increase the area of the radiation sheet. Therefore, the number of grounding structures can be determined according to the actual performance requirements of the antenna components. Considering the miniaturization requirements of the antennas, the number of grounding structures can be configured as two, three or four.

The application effect of the antenna component provided by the embodiment of the present invention will be exemplified below. In this example, the diameter of the circular radiating piece of the antenna member is 35 mm, the height of the grounding structure is 10 mm, the height of the feeding structure is 9.5 mm, and the grounding structure and the feeding structure are both made of a 1 mm metal cylinder. After the gain test, the antenna using the antenna component has a VSWR of less than 2.5 and a relative bandwidth of 12% and a gain of 2 dB. Left and right, the antenna pattern roundness is 3.4 dB. The antenna can achieve good emission effects in the 1.8G or 1.9G or 2.1G or 2.3G or 2.6G frequency bands.

The antenna component provided by the embodiment of the present invention is applicable to a small station, the antenna component includes a radiation piece, a feeding structure on the same side of the radiation piece, and at least two grounding structures, wherein the grounding structure is centered on the feeding structure. Symmetrically disposed on the radiation sheet, the antenna component of the antenna component provided in this embodiment is small in size and uniform in signal coverage, and can improve the signal coverage effect of the small station.

4 is a front elevational view of another antenna component according to an embodiment of the present invention. The antenna component can be used in a small station.

The antenna component 2 includes a radiating plate 21, a feeding structure 22, a first grounding structure 231, a second grounding structure 232, a feeding structure 22 connected to the radiating plate 21, a first grounding structure 231, and a second grounding structure 232 respectively The radiation sheets 21 are connected. The feed structure 22 is located in the central region 24 of the radiation sheet 21.

For the arrangement of the components and the connection relationship between the components, reference may be made to the description of the embodiment shown in FIG. 1 , and details are not described herein.

As shown in FIG. 3, the feed structure 22 in the antenna component 2 includes a first structure 221 and a second structure 222, wherein the first structure 221 is connected to the radiation sheet 21, and the second structure 222 is connected to the first structure 222. The projected area of the first structure 221 is larger than the projected area of the second structure 222.

It can be understood that the shape of the first structure 221 or the second structure 222 is not limited in any embodiment of the present invention. The first structure 221 may be a regular shape such as a cylinder, a rectangular parallelepiped or a square, and the second structure 222 may be a cylinder. Or a regular shape structure such as a rectangular piece. Alternatively, the first structure 221 or the second structure 222 may also be other structures that approximate the regular shape described above. The first structure 221 and the second structure 222 are both metallic materials.

The size of the projected area of the first structure 221 is not particularly limited as long as the projected area of the first structure 221 is larger than the projected area of the second structure 222. Alternatively, the projected area of the first structure 221 may be N times the projected area of the second structure 222 (N is an integer greater than 1). The higher the difference in the projected area between the two structures, the stronger the capacitive and inductive between the first structure 221 and the reference ground, that is, the reflector of the antenna in which the antenna component is disposed, and at the same time, the antenna component 2 needs to be considered. The operating frequency band and bandwidth of the antenna are such that the projected area of the first structure 221 is reasonably determined.

For example, the first structure 221 may be a metal cylinder having a diameter of 10 mm or more and 17 mm or less, the second structure 222 may be a metal cylinder having a diameter of 1 mm or more and 3 mm or less, or the second structure 222 may have a width of 2 mm. The rectangular metal foil above and below 5 mm.

The heights of the first structure 221 and the second structure 222 are not particularly limited in the embodiment of the present invention. The first structure 221 and the second structure 222 can be equal in height, that is, 1/2 of the overall height of the feed structure 22.

The actual effect of the antenna component provided by the embodiment of the present invention will be exemplified below. In this example, the diameter of the circular radiating piece of the antenna component is 35 mm, the height of the grounding structure is 15 mm, the overall height of the feeding structure is 14.5 mm, and the grounding structure adopts a metal cylinder of 1 mm diameter, and the feeding structure is The first structure to which the radiating sheets are joined is a metal cylinder having a diameter of 10 mm, and the second structure in the feeding structure is a metal cylinder having a diameter of 1 mm. After gain testing, the antenna using the antenna component has a relative bandwidth of 23% with a standing wave ratio of less than 2.5. In the case of relatively large broadband, the circularity of the pattern of the antenna changes little with frequency, and is less than 3.5 dB in the 1.7-2.2G frequency band. The antenna can achieve good emission effects in the frequency range of 1.7G to 2.1G or 2.3G to 2.6G.

Optionally, in this embodiment, the number of the grounding structures may be more than two. The manner of setting the grounding structure may refer to related descriptions in other embodiments of the present invention, and details are not described herein.

By using the antenna component provided by the embodiment of the invention, the capacitance and the inductance between the feed structure and the reference ground are enhanced by increasing the contact area between the feed structure and the radiation plate, and the bandwidth range of the antenna is expanded, and the bandwidth is wider. Good signal coverage can be achieved within the bandwidth range.

FIG. 5 is a front elevational view of an antenna according to an embodiment of the present invention. This antenna can be used in a small station.

As shown in FIG. 5, the antenna 3 includes an antenna member 31 and a reflection plate 32. The antenna member 31 may be the antenna member shown in any of the embodiments of Figs. Not shown in Fig. 5, the antenna member 31 may be the antenna member shown in the embodiment of Fig. 4.

The antenna component 31 is connected to the reflector 32 through the grounding structure 311. There is a gap between the feeding structure 312 of the antenna component 31 and the reflector 32. The projected area of the reflector 32 is larger than the projected area of the radiating patch 313 of the antenna component 31. And the projection area of the reflection plate 32 contains the projection area of the radiation piece 313.

The shape of the reflecting plate 32 is not limited, and may be, for example, a rectangle or a circle or other regular or irregular pattern; the material of the reflecting plate is a metal material.

Specifically, one end of the ground structure 312 of the antenna member 31 is connected to the radiation plate 313 of the antenna member 31, and the other end is connected to the reflection plate 32. One end of the feeding structure 312 is connected to the radiation plate 313 of the antenna member 31, and there is a gap between the other end and the reflecting plate 32. For example, the gap is 0.5 mm or more and less than 1 mm, that is, the height of the feeding structure 312 is higher than the grounding. Structure 312 is short 0.5 mm to 1 mm.

Optionally, the antenna 3 may be connected to the radio frequency portion of the small station through a coaxial cable or a microstrip line for transmitting a radio frequency signal, and the outer conductor of the coaxial cable or the microstrip line may be soldered on the reflector 32. The conductor can be connected to the antenna member 31 by soldering.

Alternatively, the antenna 3 may be an omnidirectional antenna.

The antenna provided by the embodiment of the present invention is applicable to a small station, wherein a grounding structure centered on the feeding structure and symmetrically disposed on the radiation piece is disposed, and the antenna has a small volume and uniform signal coverage, and can improve the signal coverage effect of the small station.

The station 4 includes a built-in antenna 41, which may be the antenna shown in FIG.

The station may also include a radio frequency unit 42 coupled to the internal antenna 41 for transmitting radio frequency signals to the internal antenna 41.

Alternatively, the internal antenna 41 can be connected to the radio frequency unit 42 via a coaxial cable or a microstrip line.

The small station may be a micro cell base station; or a pico cell base station; or an access point (AP) device, which is not limited in this embodiment of the present invention.

According to the small station provided by the embodiment of the present invention, a grounding structure centered on the feeding structure and symmetrically disposed on the radiation piece is disposed in the built-in antenna of the small station, and the antenna has small volume and uniform signal coverage, which can improve the signal coverage effect of the small station. .

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

An antenna component characterized by being used in a small station, the antenna component comprising a radiating sheet, a feeding structure, and at least two grounding structures,

One end of the feeding structure is connected to the radiation piece, and one end of each of the grounding structures is connected to the radiation piece, and the feeding structure and the grounding structure are located on the same side of the radiation piece;

The at least two ground structures are symmetrically disposed on the radiation piece centering on the feed structure.
The antenna component according to claim 1, wherein the feed structure comprises a first structure and a second structure, wherein one end of the first structure is connected to the radiation piece, and the second structure Connected to the other end of the first structure, the projected area of the first structure is larger than the projected area of the second structure.
The antenna component according to claim 2, wherein a projected area of the first structure is N times a projected area of the second structure, and N is an integer greater than 1.
The antenna component according to claim 2 or 3, wherein the first structure is a metal cylinder, and the second structure is a metal cylinder or a rectangular metal foil.
The antenna component according to any one of claims 1 to 4, wherein a height of the ground structure is proportional to an operating bandwidth of an antenna configuring the antenna component, and a height of the antenna component is greater than the ground structure the height of.
The antenna component according to any one of claims 1 to 5, wherein the shape of the radiation sheet is a centrally symmetrical or axisymmetric pattern.
The antenna component according to any one of claims 1 to 6, wherein the number of the ground structures is proportional to a working frequency band of an antenna in which the antenna component is disposed.
The antenna component according to any one of claims 1 to 7, wherein

The feeding structure is located in a central area of the radiation piece, the central area is an area centered on a center of the radiation piece, and one tenth of a wavelength is a diameter, wherein the wavelength is configured The wavelength of the electromagnetic wave corresponding to the operating frequency band of the antenna of the antenna component.
The antenna component according to any one of claims 1-8, characterized in that

The at least two ground structures are located at an edge region of the radiation sheet, the edge region being a region one tenth of a wavelength from an edge of the radiation sheet, wherein the wavelength is an antenna configuring the antenna component The wavelength of the electromagnetic wave corresponding to the working frequency band.
An antenna characterized by being used in a small station, comprising the antenna component according to any one of claims 1-9, and a reflector, wherein

a grounding structure of the antenna component is connected to the reflector, a gap exists between a feeding structure of the antenna component and the reflector, and a projected area of the reflector is larger than a projected area of the radiating piece of the antenna component And a projection area of the reflector includes a projection area of the radiation sheet.
The antenna according to claim 10, wherein a gap between the feeding structure of the antenna member and the reflecting plate is 0.5 mm or more and 1 mm or less.
A small station, comprising the antenna of claim 10 or 11.