CN219350659U - Radiating element and base station antenna - Google Patents

Abstract

The utility model relates to the technical field of communication, and discloses a radiation unit and a base station antenna, wherein the radiation unit comprises: a radiating element body and a director sheet assembly; the radiating unit main body comprises a dielectric substrate and a radiating surface arranged on the dielectric substrate, the guide piece assembly comprises a first guide piece, a second guide piece and a mounting bracket, the mounting bracket is connected above the dielectric substrate, the first guide piece and the second guide piece are respectively connected to the mounting bracket, and the first guide piece and the second guide piece are arranged in parallel up and down. According to the radiating unit and the base station antenna, the double-layer guide piece is arranged above the radiating surface, so that the bandwidth can be expanded, the number of the radiating units in the array is reduced, and the radiating performance of the radiating units is guaranteed; in addition, setting up the setting of first guide piece and second guide piece can be realized in the connection of setting up installing support accessible installing support and dielectric substrate, simple structure, and the installation is convenient, can be convenient for guide piece subassembly's installation setting.

Description

Radiating element and base station antenna

Technical Field

The present utility model relates to the field of communications technologies, and in particular, to a radiating element and a base station antenna.

Background

In recent decades, mobile communication technologies have been rapidly developed, and as a core device in a mobile communication network, the demands of a base station antenna for miniaturization, broadband and low cost of the antenna have become a major development trend. For conventional antennas, to meet the multi-frequency requirements of the market, more multi-band antenna elements are required to be combined together to form an array of different frequency bands.

As the communication demands of users increase, the number of antenna units to be arranged in a limited antenna installation space gradually increases, and as the arrays radiate mutually, the radiation performance of the antenna units, such as beam forming, gain, etc., can be seriously affected, and how to improve the radiation performance of the antenna units in the antenna array by a simple and convenient structure is particularly important.

Disclosure of Invention

The utility model provides a radiation unit and a base station antenna, which are used for solving the problem that the radiation performance of an antenna unit in the existing antenna array is to be improved.

The utility model provides a radiating element comprising: a radiating element body and a director sheet assembly; the radiating unit main body comprises a dielectric substrate and a radiating surface arranged on the dielectric substrate, the guide sheet assembly comprises a first guide sheet, a second guide sheet and a mounting bracket, the mounting bracket is connected above the dielectric substrate, the first guide sheet and the second guide sheet are respectively connected with the mounting bracket, and the first guide sheet and the second guide sheet are arranged in an up-down parallel mode.

According to the radiation unit provided by the utility model, the mounting bracket comprises a bracket body and a first clamping hook connected to the top of the bracket body, the first clamping hook protrudes out of the top of the bracket body, the first clamping hook is connected with the first guiding sheet in a clamping manner, and the first guiding sheet is supported on the top of the bracket body.

According to the radiation unit provided by the utility model, the bracket body is of a frame structure and comprises a top frame positioned at the top and a plurality of supporting legs connected below the top frame;

the mounting bracket further comprises a second clamping hook, the second clamping hook is connected below the top frame, the second clamping hook is connected with the second guiding piece in a clamping mode, and the second guiding piece is supported by the second clamping hook.

According to the radiation unit provided by the utility model, two first clamping hooks are arranged, and the two first clamping hooks are oppositely arranged on the bracket body along the first direction; two second hooks are arranged, and the two second hooks are oppositely arranged on the bracket body along a second direction; wherein the first direction and the second direction are perpendicular.

According to the radiation unit provided by the utility model, the area of the first guiding piece is larger than that of the second guiding piece.

According to the radiation unit provided by the utility model, the mounting bracket further comprises a plurality of third clamping hooks, the third clamping hooks are arranged at the bottom of the bracket body, and the third clamping hooks are connected with the dielectric substrate in a clamping manner.

According to the radiation unit provided by the utility model, the bottom of the mounting bracket is also provided with the supporting piece, and the supporting piece is supported above the dielectric substrate when the third clamping hook is in clamping connection with the dielectric substrate.

According to the radiation unit provided by the utility model, the mounting bracket is of an integrated structure.

According to the radiating unit provided by the utility model, the radiating surface comprises four sub radiating surfaces which are distributed in a central symmetry manner, and the sub radiating surfaces are provided with grid-shaped gap structures;

and/or a loading column is arranged at the position, corresponding to the sub-radiation surface, below the dielectric substrate, and the sub-radiation surface extends to the loading column.

The utility model also provides a base station antenna comprising the radiation unit of any one of the above.

According to the radiating unit and the base station antenna, the double-layer guide plate is arranged above the radiating surface, so that the bandwidth can be expanded, the number of the radiating units in the array is reduced, the mutual radiation influence among the arrays is reduced, and the radiation performance of the radiating units is ensured; the guide plate is arranged to adjust and improve the radiation performance of the radiation unit, so that better radiation performance such as beam forming, gain and the like can be obtained; in addition, the mounting bracket is used for connecting the first guide piece and the second guide piece respectively, the first guide piece and the second guide piece can be arranged through connection of the mounting bracket and the medium substrate, the structure is simple, the installation is convenient, and the installation setting of the guide piece assembly can be facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall schematic of a radiation unit provided by the present utility model;

FIG. 2 is a schematic view of a guide vane assembly provided by the present utility model;

FIG. 3 is a schematic view of a mounting bracket according to the present utility model;

FIG. 4 is a schematic side view of a mounting bracket provided by the present utility model;

FIG. 5 is a schematic diagram of an arrangement of a dielectric substrate and a radiation surface provided by the present utility model;

FIG. 6 is a schematic diagram illustrating the arrangement of a side of a dielectric substrate facing away from a radiation surface;

FIG. 7 is a schematic view of the arrangement of the first support plate and the second support plate provided by the present utility model;

fig. 8 is a schematic diagram of feeder circuits on a first support plate and a second support plate provided by the present utility model.

Reference numerals:

1: a radiating unit body; 11: a dielectric substrate; 111: a first opening; 112: a second opening; 113: loading a column; 12: a radiation surface; 121: a first sub-radiating surface; 122: a second sub-radiating surface; 1211: a gate-shaped slit structure; 13: a reflection plate; 14: a first support plate; 15: a second support plate; 16: a feed line; 17: balun ground; 18: welding pins; 2: directing the sheet assembly; 21: a mounting bracket; 211: a bracket body; 2111: a top frame; 2112: a support leg; 212: a first hook; 213: a second hook; 214: a third hook; 215: a support; 2151: pins; 16: reinforcing ribs; 22: a first guide piece; 23: and a second guide tab.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The radiating element and the base station antenna of the present utility model are described below in connection with fig. 1-8.

Referring to fig. 1, the present embodiment provides a radiating element including: a radiating element body 1 and a guide sheet assembly 2; the radiation unit main body 1 comprises a dielectric substrate 11 and a radiation surface 12 arranged on the dielectric substrate 11, the guide sheet assembly 2 comprises a first guide sheet 22, a second guide sheet 23 and a mounting bracket 21, the mounting bracket 21 is connected above the dielectric substrate 11, the first guide sheet 22 and the second guide sheet 23 are respectively connected with the mounting bracket 21, and the first guide sheet 22 and the second guide sheet 23 are arranged in parallel up and down.

I.e. the present embodiment provides a guiding-patch assembly 2 above the radiating surface 12 of the radiating element for adjusting the radiation performance of the enhanced radiating element. The director sheet is above the radiating surface 12, and the radiating element body 1 can be spatially coupled to the director sheet assembly 2, corresponding to the creation of a new radiator, thereby enabling an expansion of the bandwidth.

Specifically, two layers of guide sheets, namely a first guide sheet 22 and a second guide sheet 23, are arranged in the height direction of the radiating element, and the double layers of guide sheets are arranged to expand the bandwidth in a larger range, so that the radiating performance of the radiating element can be better regulated. Further, the mounting bracket 21 is provided for mounting and supporting two guide plates, namely, the first guide plate 22 and the second guide plate 23 are both arranged on the mounting bracket 21, the arrangement of the first guide plate 22 and the second guide plate 23 above the radiation surface can be realized through the connection of the mounting bracket 21 and the dielectric substrate 11, and the mounting bracket 21 is provided for being respectively connected with the first guide plate 22 and the second guide plate 23, so that the installation of the two guide plates above the radiation surface can be facilitated.

According to the radiation unit provided by the embodiment, the double-layer guide sheet is arranged above the radiation surface 12, so that the bandwidth can be expanded, the number of the radiation units in the array can be reduced, the mutual radiation influence among the arrays can be reduced, and the radiation performance of the radiation units can be ensured; the guide plate is arranged to adjust and improve the radiation performance of the radiation unit, so that better radiation performance such as beam forming, gain and the like can be obtained; in addition, the mounting bracket 21 is used for connecting the first guide piece 22 and the second guide piece 23 respectively, the first guide piece 22 and the second guide piece 23 can be arranged through the connection of the mounting bracket 21 and the medium substrate 11, the structure is simple, the installation is convenient, and the installation of the guide piece assembly 2 can be facilitated.

Further, the centers of the first guide piece 22, the second guide piece 23 and the radiation surface 12 are on a straight line; namely, the centers of the first guiding piece 22, the second guiding piece 23 and the radiation surface 12 can be correspondingly arranged up and down, so that the first guiding piece 22 and the second guiding piece 23 are respectively positioned right above the radiation surface 12, which is beneficial to better adjusting and improving the radiation performance.

Further, referring to fig. 2, the mounting bracket 21 includes a bracket body 211 and a first hook 212 connected to the top of the bracket body 211, the first hook 212 protrudes from the top of the bracket body 211, the first hook 212 is engaged with the first guiding piece 22, and the first guiding piece 22 is supported on the top of the bracket body 211.

In this embodiment, a first hook 212 is protruding from the top of the bracket body 211, and the first hook 212 is protruding from the top of the bracket body 211. An opening may be provided on the first guide plate 22, and the first hook 212 may pass through the opening on the first guide plate 22 and be engaged with the first guide plate 22, so as to mount the first guide plate 22. And the first guiding piece 22 is placed above the top of the bracket body 211, the bracket body 211 can support the first guiding piece 22, so that the top of the bracket body 211 and the first clamping hooks 212 are arranged on two sides of the first guiding piece 22, and limit fixation can be realized on the first guiding piece 22.

Further, referring to fig. 3, the stand body 211 has a frame structure, and the stand body 211 includes a top frame 2111 at the top and a plurality of legs 2112 connected below the top frame 2111; the top frame 2111 is a frame-shaped structure located on top of the holder body 211. That is, the bracket body 211 may be connected by the top frame 2111 and the leg 2112 to form a three-dimensional structure for connection with the dielectric substrate 11 and supporting and fixing the first guide piece 22 and the second guide piece 23. Each side of the holder body 211 may be open, and the holder body 211 is hollow, so that the first and second guide pieces 22 and 23 are conveniently mounted, and the weight of the mounting holder 21 is advantageously reduced.

Further, referring to fig. 3, the mounting bracket 21 further includes a second hook 213, the second hook 213 is connected below the top frame 2111, the second hook 213 is connected to the second guiding plate 23 in a clamping manner, and the second guiding plate 23 is supported by the second hook 213. An opening can be formed in the second guiding piece 23, the second guiding piece 23 can move upwards from the lower side of the second clamping hook 213, so that the second clamping hook 213 passes through the opening in the second guiding piece 23, the clamping connection between the second clamping hook 213 and the second guiding piece 23 is realized, and the clamping hook part of the second clamping hook 213 can play a role in supporting and fixing the second guiding piece 23 under the second guiding piece 23.

Further, the hook portion of the second hook 213 and the top frame 2111 may be located at two sides of the second guiding piece 23, and play a role in limiting and fixing the second guiding piece 23. The second guide piece 23 can be mounted from below the second hook 213. The first hook 212 is located above the top frame 2111. The first guide piece 22 can be mounted from above the first hook 212. The mounting bracket 21 can simultaneously realize the mounting and fixing of the first guide piece 22 and the second guide piece 23, and the guide piece assembly 2 can be conveniently arranged.

Further, referring to fig. 3, two first hooks 212 are provided, and the two first hooks 212 are oppositely disposed on the bracket body 211 along the first direction; two first hooks 212 are provided to be respectively engaged with the first guiding piece 22, which is beneficial to improving the stability of connection. Two second hooks 213 are provided, and the two second hooks 213 are oppositely disposed on the bracket body 211 along the second direction; two second hooks 213 are provided to be respectively engaged with the second guiding piece 23, which is beneficial to improving the stability of connection.

Further, the first direction and the second direction are perpendicular. Therefore, the two first clamping hooks 212 and the first guiding piece 22 can be clamped along the first direction to be connected in a clamping way, the two second clamping hooks 213 and the second guiding piece 23 can be clamped along the second direction to be connected in a clamping way, so that mutual interference during installation of the first guiding piece 22 and the second guiding piece 23 is reduced, and installation of the first guiding piece 22 and the second guiding piece 23 can be facilitated.

Further, on the basis of the above embodiment, the area of the first guide piece 22 is larger than the area of the second guide piece 23. The first guiding piece 22 is located above the second guiding piece 23, and the first guiding piece 22 is connected with the first hook 212 protruding from the top of the bracket body 211, so that a larger area can be provided. The second guide piece 23 is connected to the second hook 213 located below the top frame 2111 of the bracket body 211, and may be provided with a small area for easy installation.

Further, referring to fig. 2 and 3, the mounting bracket 21 further includes a plurality of third hooks 214, the third hooks 214 are disposed at the bottom of the bracket body 211, and the third hooks 214 are in snap connection with the dielectric substrate 11. A plurality of third hooks 214 can be arranged at the bottom of the bracket body 211 to be clamped and connected with the medium substrate 11, so that the connecting structure of the mounting bracket 21 and the medium substrate 11 is simple, the arrangement is convenient, and the convenience of the arrangement of the guide piece assembly 2 is improved.

Specifically, the third hooks 214 may be respectively disposed at four corners of the bottom of the support body 211, so that the support body 211 is provided with four third hooks 214 at four corners, which is beneficial to improving the stability of the setting of the mounting support 21, and further improving the stability of the setting of the first guiding piece 22 and the second guiding piece 23.

Further, referring to fig. 3 and 4, a supporting member 215 is further provided at the bottom of the mounting bracket 21, and the supporting member 215 is supported above the dielectric substrate 11 when the third hook 214 is engaged with and connected to the dielectric substrate 11. That is, when the third hook 214 passes through the dielectric substrate 11 from above the dielectric substrate 11 to be engaged with the dielectric substrate 11, the supporting member 215 at the bottom of the bracket body 211 may be located above the dielectric substrate 11, so that the hook portion of the third hook 214 and the supporting member 215 are located at two sides of the dielectric substrate 11, and firm and stable installation of the mounting bracket 21 may be realized.

Specifically, the third hook 214 is disposed at the bottom of the leg 2112; the support 215 may also be connected to the legs 2112. The support 215 may be connected between two adjacent legs 2112. Therefore, when the third hooks 214 at the bottoms of the supporting legs 2112 are engaged with the dielectric substrate 11, the supporting piece 215 is located above the dielectric substrate 11 and can play a role in limiting and fixing the mounting bracket 21.

Further, referring to fig. 3, supporting members 215 may be disposed at opposite sides of the bottom of the bracket body 211, respectively, so as to facilitate the stability of the connection between the mounting bracket 21 and the dielectric substrate 11. The bottom of the bracket body 211 may be connected to the reinforcing rib 16 at the other side than the support 215. The reinforcing rib 16 may be connected between adjacent two of the legs 2112 for enhancing the structural strength of the mounting bracket 21.

Further, on the basis of the above embodiment, the mounting bracket 21 is of an integral structure. Namely, the bracket body 211, the first hook 212, the second hook 213 and the third hook 214 may be an integral structure. Specifically, the top frame 2111, the leg 2112, the support 215, and the reinforcing rib 16 of the bracket body 211 may also be an integral structure, which is convenient to provide and is advantageous for improving structural strength.

Further, referring to fig. 5, a first opening 111 is provided on the dielectric substrate 11 corresponding to the third hook 214, for the third hook 214 to pass through and engage with each other. The first hook 212, the second hook 213 and the third hook 214 may be respectively elastic hook structures, and may be respectively plastic hook members. The first guide piece 22 and the second guide piece 23 may be of a sheet metal structure to enable adjustment and improvement of the radiation performance of the radiation unit.

Further, referring to fig. 4, the bottom of the supporting member 215 may further be provided with a pin 2151, and an opening may be provided on the dielectric substrate 11 at a position corresponding to the pin 2151, where the pin 2151 may pass through the opening to enable the supporting member 215 to be stably supported on the dielectric substrate 11, which is beneficial to improving the connection stability of the mounting bracket 21 and the dielectric substrate 11.

Further, with reference to fig. 5, the radiation surface 12 includes four sub radiation surfaces symmetrically distributed in the center, and the sub radiation surfaces are provided with grid-shaped slit structures 1211; and/or a loading column 113 is arranged below the dielectric substrate 11 and corresponding to the sub-radiation surface, and the sub-radiation surface extends to the loading column 113.

The present embodiment describes a specific arrangement of the radiation surface 12. The radiation surface 12 is disposed on the upper surface of the dielectric substrate 11, the dielectric substrate 11 is a support plate of the radiation surface 12, the radiation surface 12 may be a Printed Circuit (PCB) structure, that is, a radiation circuit structure, and the radiation surface 12 is electroplated on the upper surface of the dielectric substrate 11, and is used for receiving and transmitting signals. The radiation surface 12 may include four sub-radiation surfaces distributed on the dielectric substrate 11 in a central symmetry manner, and the four sub-radiation surfaces may include two first sub-radiation surfaces 121 disposed along a third direction and two second sub-radiation surfaces 122 disposed along a fourth direction, wherein the third direction and the fourth direction are perpendicular, so as to form a dual polarized radiation structure.

Further, the sub-radiating surfaces are provided with grid-shaped slits; the grating slit structure 1211 may include a plurality of slits disposed on the sub-radiation surface, at least two of the plurality of slits constituting the grating structure, i.e., at least two of the plurality of slits are parallel to each other. By providing the grid-shaped slit structures 1211 at the first and second sub-radiation surfaces 121 and 122, respectively, current paths can be enriched and the operating band of the radiation unit can be widened. The grating slit structures 1211 on the plurality of sub-radiation surfaces may communicate with each other at the central portion of the dielectric substrate 11. Specifically, the specific number and arrangement of the slits in the gate slit structure 1211 are not limited.

Further, referring to fig. 1 and 6, a loading column 113 may be further disposed below the dielectric substrate 11, where the loading column 113 is used to implement loading, which is advantageous for implementing miniaturization of the radiation unit. A loading column 113 may be disposed on the lower surface of the dielectric substrate 11 corresponding to each sub-radiation surface. The dielectric substrate 11 may be provided with a second opening 112 at a position corresponding to the loading post 113, the second opening 112 penetrates through the dielectric substrate 11, and the sub-radiation surface may extend to the surface of the loading post 113 through the dielectric substrate 11 through the second opening 112, that is, the surface of the loading post 113 is also provided with a radiation circuit, and the radiation circuit on the surface of the loading post 113 is connected with the sub-radiation surface portion of the upper surface of the dielectric substrate 11 into a whole. The sub-radiating surface extends through the dielectric substrate 11 to the surface of the loading post 113. The second opening 112 may be located at one side of the loading post 113 as shown in fig. 5 and 6.

Further, the radiating element main body 1 further includes a first support plate 14 and a second support plate 15 that are cross-connected, the first support plate 14 and the second support plate 15 are vertically connected below the dielectric substrate 11, and a feeding line 16 and a balun 17 matched with the radiating surface are disposed on the first support plate 14 and the second support plate 15.

Referring to fig. 1 and 7, in this embodiment, the first support plate 14 and the second support plate 15 are support portions of the dielectric substrate 11, the first support plate 14 and the second support plate 15 may vertically intersect, and the first support plate 14 and the second support plate 15 are vertically connected to the dielectric substrate 11, respectively. The first support plate 14 and the second support plate 15 are disposed to intersect to stably support the dielectric substrate 11. The first support plate 14 and the second support plate 15 are also used for providing a feed part of the radiating element, which feed part comprises a feed line 16, and a balun part, which balun part comprises a balun ground 17, i.e. a ground line. The feed line 16 forms a coupling feed with the radiating plane.

Specifically, the balun 17 includes two first balun faces provided on the first side face of the first support plate 14 and located on both sides of the second support plate 15, and two second balun faces provided on the first side face of the second support plate 15 and located on both sides of the first support plate 14 (i.e., the balun 17 shown in fig. 7). Because the first support plate 14 and the second support plate 15 are disposed to intersect, the first side of the first support plate 14 is divided into two parts by the second support plate 15, that is, one part of the first side of the first support plate 14 is located on one side of the second support plate 15 and the other part is located on the other side of the second support plate 15. A first balun face is provided on each of the two portions of the first side face of the first support plate 14. The two first balun faces are located below the two first sub-radiating faces 121.

Likewise, the first side of the second support plate 15 is divided into two parts by the first support plate 14, i.e., the first side of the second support plate 15 is partially located on one side of the first support plate 14 and partially located on the other side of the first support plate 14. Second balun surfaces are provided at two portions of the first side surface of the second supporting plate 15, respectively. The two second balun faces are located below the two second sub-radiating faces 122. The balun 17 is connected to the radiating surface 12 to ground the radiating surface.

The feeding portion includes a first feeding surface (i.e., the feeding line 16 as shown in fig. 7) provided on the second side surface of the first support plate 14, and a second feeding surface provided on the second side surface of the second support plate 15. Referring to fig. 7 and 8, the portions of the second support plate 15 and the first and second feeding surfaces are provided with openings, respectively. The first feeding surface will cross the second support plate 15 on the second side of the first support plate 14. An opening is provided at the intersection of the second support plate 15 and the first feeding surface, so that the first feeding surface passes through the opening, and no contact is made between the first feeding surface and the second support plate 15.

The second feeding surface will cross the first support plate 14 on the second side of the second support plate 15. An opening is provided at the intersection of the first support plate 14 and the second feeding surface so that the second feeding surface passes through the opening, and there is no contact between the second feeding surface and the first support plate 14.

Further, the first feeding surface and the second feeding surface can be of a winding structure, and the widths of the first feeding surface and the second feeding surface are flexibly set according to actual needs.

Further, as shown in fig. 7, the bottom of the first support plate 14 and the bottom of the second support plate 15 are respectively provided with a soldering foot 18, and the first balun face and the second balun face extend to the surface of the soldering foot 18. The first balun face extends to the surface of the welding foot 18 at the bottom of the first support plate 14 and the second balun face extends to the surface of the welding foot 18 at the bottom of the second support plate 15.

Further, referring to fig. 6 and 7, the first and second feeding surfaces extend to the surface of the solder foot 18, respectively. The first feeding surface extends to the surface of the solder leg 18 at the bottom of the first support plate 14, and the second feeding surface extends to the surface of the solder leg 18 at the bottom of the second support plate 15.

That is, four welding pins 18 are provided at the bottoms of the first support plate 14 and the second support plate 15, and two welding pins 18 are located at the bottom of the first support plate 14 and the other two are located at the bottom of the second support plate 15. The four welding legs 18 form a welding portion of the radiating element body 1. The bottoms of the two feeding surfaces extend to the surface of the welding pin 18 and are used for being electrically connected with a power division network port so as to realize signal excitation, the bottoms of the two first balun surfaces and the two second balun surfaces extend to the surface of the welding pin 18, and the supporting parts form a balun for inhibiting the generation of surrounding surface currents.

On the basis of the above embodiments, further, this embodiment provides a base station antenna, which includes the radiation unit according to any one of the above embodiments.

Based on the above embodiments, further, the present embodiment is based on the current situation that the combination of adjacent arrays in the antenna array has strong mutual coupling, which not only increases the research and development difficulty, but also causes serious influence on beamforming, gain, etc. due to the mutual radiation of the arrays, it is important to propose to improve the current situation, design the broadband unit to reduce the antenna array, and improve the performance of the radiation unit.

The present embodiment specifically provides a radiation unit, referring to fig. 1, the radiation unit is disposed on a reflection plate 13, the radiation unit includes a dielectric substrate, a metal circuit and a metal guiding sheet assembly 2, the dielectric substrate includes a dielectric substrate 11, a supporting portion and a loading portion, that is, a loading column 113, and the dielectric substrate may be an integral structure. I.e., the support portion, the dielectric substrate 11, and the loading post 113 are integrally formed, and the support portion and the loading portion are respectively connected to the lower surface of the dielectric substrate 11. The metal circuit comprises a radiation part, a feed part and a balun part; the radiation portion includes a radiation surface 12, which is electroplated on the upper surface of the dielectric substrate 11, and extends through the dielectric substrate 11 to the surface of the loading post 113. The feeding portion and the balun portion are galvanically provided on the surface of the supporting portion. The mounting bracket 21 of the metal guide plate assembly 2 is of an integral structure, the metal guide plate mounting bracket 21 comprises a bracket body 211, a first clamping hook 212, a second clamping hook 213 and a third clamping hook 214 which are arranged on the bracket body 211, and the metal guide plate comprises an upper layer first guide plate 22 and a lower layer second guide plate 23.

The dielectric substrate is of an integral structure, and specifically, the dielectric substrate can be integrally injection molded. Can be conveniently manufactured in large scale, and improves the consistency of the medium base material. The support portion is for supporting the dielectric substrate 11 and facilitates the provision of the feeding portion. The radiating portion includes two first sub-radiating surfaces 121 disposed in the third direction and two second sub-radiating surfaces 122 disposed in the fourth direction, and a central portion of the supporting portion corresponds to a central portion of the radiating portion.

Further, referring to fig. 5, the first sub-radiation surface 121 and the second sub-radiation surface 122 are each of polygonal structures; the two first sub-radiating surfaces 121 and the two second sub-radiating surfaces 122 are provided with a grid-shaped slit structure 1211, enrich current paths, and widen the operating frequency band of the radiating unit. The loading part comprises a loading column 113 which is arranged corresponding to the corner part of the radiation surface, and a second opening 112 is arranged on the medium substrate 11 corresponding to the loading column 113, and the second opening 112 is positioned at one side of the loading column 113. The top ends of the loading posts 113 are connected to the lower surface of the dielectric substrate 11. The radiation surface 12 extends through the dielectric substrate 11 to the surface of the loading post 113 through the second opening 112.

The loading column 113 is arranged at a position corresponding to the corner part of the radiating surface 12, so as to realize the loading of the outer ring of the radiating circuit. The specific number of the loading posts 113 can be flexibly set according to practical situations, and is not limited. Specifically, when the radiation surface 12 includes two first sub-radiation surfaces 121 and two second sub-radiation surfaces 122, four loading posts 113 may be correspondingly disposed, and the four loading posts 113 are correspondingly disposed at four corners of the four sub-radiation surfaces.

Further, on the basis of the above embodiment, the metal guide plate assembly 2 is provided above the radiation unit, and the metal guide plate is provided on the upper and lower layers of the metal guide plate mounting bracket 21. Referring to fig. 2 and 3, the mounting bracket 21 of the metal guide plate assembly 2 is an integral injection molding structure, and includes a first hook 212, a second hook 213, a bracket body 211 and a third hook 214. The metal guide tabs comprise a first guide tab 22 and a second guide tab 23. The first guide piece 22 is disposed on the first hook 212, the second guide piece 23 is disposed on the second hook 213, the first guide piece 22 has a larger area than the second guide piece 23, the dielectric substrate 11 and the metal guide piece mounting bracket 21 are correspondingly provided with a first opening 111, and the first opening 111 is connected with a third hook 214. The radiation surface may be provided with a relief groove at a position corresponding to the first opening 111. Further, the connection lines of the two first hooks 212 and the connection lines of the two second hooks 213 are perpendicular to each other.

Through the design, the miniaturized double-layer guiding ultra-wideband molding interconnection radiating unit is finally realized. Based on the integrally formed dielectric substrate, the radiating part and the feeding part are arranged on the dielectric substrate, and the radiating unit is used as a single component to realize the function of a vibrator, so that the vibrator structure can be simplified, the installation is convenient, the consistency is good, the electroplating setting precision of a metal circuit is high, and the index consistency is good; the loading part is arranged, the radiation part can realize loading, and the miniaturization of the radiation unit is facilitated; and the radiating part is provided with a grid-shaped gap structure 1211, enriches current paths, and is provided with a double-layer guide sheet to further widen the working frequency band of the radiating unit. The antenna can be applied to a large-scale ultra-wideband array antenna, has the advantages of light weight, low profile, wide working frequency band, simple structure and convenient installation, is very suitable for large-scale manufacture and automatic production, and has wide application prospect in the large-scale array antenna.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A radiating element, comprising: a radiating element body and a director sheet assembly; the radiating unit main body comprises a dielectric substrate and a radiating surface arranged on the dielectric substrate, the guide sheet assembly comprises a first guide sheet, a second guide sheet and a mounting bracket, the mounting bracket is connected above the dielectric substrate, the first guide sheet and the second guide sheet are respectively connected with the mounting bracket, and the first guide sheet and the second guide sheet are arranged in an up-down parallel mode.

2. The radiating element of claim 1, wherein the mounting bracket comprises a bracket body and a first hook connected to the top of the bracket body, the first hook protrudes from the top of the bracket body, the first hook is connected with the first guiding sheet in a clamping manner, and the first guiding sheet is supported on the top of the bracket body.

3. The radiating element of claim 2, wherein the bracket body is a frame structure, the bracket body including a top frame at a top and a plurality of legs connected below the top frame;

the mounting bracket further comprises a second clamping hook, the second clamping hook is connected below the top frame, the second clamping hook is connected with the second guiding piece in a clamping mode, and the second guiding piece is supported by the second clamping hook.

4. The radiating element of claim 3, wherein two of the first hooks are disposed opposite to the bracket body along a first direction; two second hooks are arranged, and the two second hooks are oppositely arranged on the bracket body along a second direction; wherein the first direction and the second direction are perpendicular.

5. A radiation unit according to claim 3, characterized in that the area of the first director sheet is larger than the area of the second director sheet.

6. The radiating element of claim 2, wherein the mounting bracket further comprises a plurality of third hooks, the third hooks being disposed at the bottom of the bracket body, the third hooks being in snap connection with the dielectric substrate.

7. The radiating element of claim 6, wherein a support is further provided at a bottom of the mounting bracket, and the support is supported above the dielectric substrate when the third hook is engaged with the dielectric substrate.

8. The radiating element of any of claims 1-7, wherein the mounting bracket is a unitary structure.

9. The radiating element of any of claims 1-7, wherein the radiating surface comprises four sub-radiating surfaces distributed in central symmetry, and wherein a grid-shaped slit structure is arranged on the sub-radiating surfaces;

and/or a loading column is arranged at the position, corresponding to the sub-radiation surface, below the dielectric substrate, and the sub-radiation surface extends to the loading column.

10. A base station antenna, characterized by comprising a radiating element according to any of the preceding claims 1-9.

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