CN116759784A

CN116759784A - Antenna unit

Info

Publication number: CN116759784A
Application number: CN202310536448.4A
Authority: CN
Inventors: 谢晖; 周进; 程季
Original assignee: CICT Mobile Communication Technology Co Ltd
Current assignee: CICT Mobile Communication Technology Co Ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-09-15

Abstract

The invention provides an antenna unit comprising: the radiation element comprises a balun seat and a radiation surface arranged on the balun seat; the feeding card seat is arranged in the radiation element, the upper end face of the feeding card seat is flush with the upper end face of the radiation surface, the feeding card seat comprises a feeding element, and the feeding element is electrically connected with the balun seat; and the guide sheet supporting seat comprises a supporting seat and two clamping arms which are oppositely arranged on the supporting seat, the supporting seat is arranged on the feeding clamping seat and detachably connected with the feeding clamping seat, and a plurality of guide sheet mounting positions which are sequentially arranged along the extending direction of the two clamping arms are formed on the two clamping arms. The antenna unit provided by the invention aims to solve the problem that the use of the radiating element is interfered when the radiating element is arranged on the guide plate in the traditional technology.

Description

Antenna unit

Technical Field

The present invention relates to the field of mobile communication devices, and in particular, to an antenna unit.

Background

Currently, with the development of base station antennas, operators put more demands on antenna products, especially on the size of multi-system antennas, and the layouts of multiple frequency band radiating elements in the multi-system antennas often need to be compatible and cross. For example, the most used layout forms are nested or side-by-side, so that the mutual coupling between the radiating elements is strong, and the circuit and radiation performance of the multi-system antenna are poor. The problems of impedance mismatch, pattern distortion, etc. caused by mutual coupling between the radiating elements can be counteracted by adding a guide plate above the radiating elements. Therefore, adding a director chip is a necessary step to optimize the circuitry and radiation performance of the multi-system antenna.

The existing guide plate supporting mode of the multi-system base station antenna mainly adopts a plurality of plastic supporting columns as supports in the early stage of research and development, and is fixed on the radiation surface of the radiation element together with a plurality of plastic screws and nuts, so that the assembly mode is complex; meanwhile, the height is influenced by the fixed size of the plastic support column, the plastic support column needs to be repeatedly assembled and disassembled when the optimal height size is selected, and the complexity of the plastic support column seriously influences the research and development time of optimizing the antenna index; later-stage mass production and shaping multisystem antenna guide piece supporting pieces can be processed by adopting an injection molding process, but the height of the guide piece is fixed and not adjustable, so that the guide piece supporting pieces have high requirements for unsatisfied performance of the guide piece height in multisystem antennas of other styles of the same radiating element, and the universality is not strong. If the supporting development is needed, the guiding sheet support with the corresponding height is required to be opened, so that the same type of radiating element is required to be supported by a plurality of guiding sheets, and the cost is increased; meanwhile, the current fixing form of the guide plate support needs to be fixed on the radiation surface of the radiating element, and when a plurality of high-frequency radiating elements adopt a frame-shaped structure, the radiation surface of the radiating element is deformed due to the installation of the guide plate support, so that the electrical performance of the radiating element is seriously influenced.

Disclosure of Invention

The invention provides an antenna unit, which aims to solve the problem that the use of a radiating element is interfered when the radiating element is arranged on a guide plate in the prior art.

In view of the problems existing in the prior art, the present invention provides an antenna unit, including:

the radiation element comprises a balun seat and a radiation surface arranged on the balun seat;

the feeding card seat is arranged in the radiation element, the upper end face of the feeding card seat is flush with the upper end face of the radiation surface, the feeding card seat comprises a feeding element, and the feeding element is electrically connected with the balun seat; the method comprises the steps of,

the guide sheet supporting seat comprises a supporting seat and two clamping arms which are oppositely arranged on the supporting seat, wherein the supporting seat is arranged on the feeding clamping seat and detachably connected with the feeding clamping seat, and a plurality of guide sheet installation positions which are sequentially arranged along the extending direction of the two clamping arms are formed on the two clamping arms.

According to the antenna unit provided by the invention, the mounting cavity is arranged in the balun seat, the radiating surface is provided with the first through groove extending along the first direction, the balun seat is provided with the second through groove extending along the second direction, and the first through groove and the second through groove are communicated with the mounting cavity; the feed cassette comprises a first supporting arm extending along the first direction and a second supporting arm extending along the second direction, wherein the first supporting arm is clamped in the first through groove, and the second supporting arm is clamped in the second through groove.

According to the antenna unit provided by the invention, the edge of the first supporting arm is provided with the bending buckle, and the bending buckle is used for being clamped at the edge of the radiation surface.

According to the antenna unit provided by the invention, the second supporting arm is provided with the plurality of fastening holes, one side, close to the radiation surface, of the supporting seat is provided with the fastening arm, and the fastening arm is fastened in any fastening hole, so that the supporting seat is detachably connected with the feeding clamping seat.

According to the antenna unit provided by the invention, the second supporting arm is provided with the guide hole, one side of the supporting seat, which is close to the radiation surface, is also provided with the guide arm, and the guide arm is movably inserted into the guide hole.

According to the antenna unit provided by the invention, the feeding clamping seat comprises two first supporting arms which are arranged in a collinear manner and two second supporting arms which are arranged in parallel, the number of the clamping arms and the number of the guiding arms are correspondingly two, and the two clamping arms and the two guiding columns are respectively arranged oppositely.

According to the antenna unit provided by the invention, the clamping arms are provided with the plurality of elastic buckles, the elastic buckles are distributed at intervals along the extending direction of the corresponding clamping arms, and the two elastic buckles which are correspondingly arranged on the two clamping arms are used for fixing the two ends of the guide piece so as to form the guide piece installation position.

According to the antenna unit provided by the invention, each clamping arm comprises a first side wall and a second side wall which are arranged at an angle, each elastic buckle is arranged on the first side wall, a plurality of limiting grooves are formed in each second side wall, and the extending directions of the limiting grooves are parallel to the extending directions of the adjacent elastic buckles.

According to the antenna unit provided by the invention, the supporting seat is also provided with the guide post, and the guide post is positioned between the two clamping arms.

According to the antenna unit provided by the invention, the guide piece supporting seat further comprises a plurality of guide pieces, each guide piece comprises a guide piece main body and guide arms arranged at two ends of the guide piece main body, the guide piece main body is provided with mounting holes, the mounting holes are matched with the guide posts, and the width of each guide arm is equal to the distance between the spigot surface of the elastic buckle and the spigot surface of the adjacent limit groove.

According to the antenna unit provided by the invention, the detachably connected feed clamping seat is arranged on the radiating element, and the guide sheet supporting seat is detachably connected with the feed clamping seat, so that the guide sheet is far away from the radiating surface during installation, the electric influence on the antenna radiating element is avoided, and the use state of the radiating element is ensured; in addition, the guide piece support piece seat is synchronously provided with a plurality of groups of guide piece mounting positions, so that the debugging height of the guide piece is increased, and a plurality of groups of guide pieces can be mounted at the same time, thereby greatly meeting the design requirement of the antenna.

Drawings

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

Fig. 1 is a schematic perspective view of an antenna unit according to the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of FIG. 1 in a disassembled state;

FIG. 3 is a schematic diagram of a combination structure of the feeding card holder and the radiating element in FIG. 1;

FIG. 4 is a schematic diagram of a first perspective structure of the feeder card holder in FIG. 1;

FIG. 5 is a schematic diagram of a second perspective structure of the feeder card holder in FIG. 1;

FIG. 6 is a schematic perspective view of the guide plate support of FIG. 1;

FIG. 7 is a partial schematic view of the structure of FIG. 6;

FIG. 8 is a schematic view of the mounting structure of the guide tab of FIG. 1;

fig. 9 is a schematic view of the structure of the guide plate in fig. 8.

Reference numerals: 10: an antenna unit; 100: a radiating element; 110: a balun seat; 111: a mounting cavity; 112: a second through slot; 120: a radiation surface; 121: a first through groove; 200: a feed cassette; 210: a feeding element; 220: a first support arm; 221: bending buckle; 222: a guide hole; 230: a second support arm; 231: a snap hole; 300: guiding to a sheet supporting seat; 310: a clamping arm; 320: an elastic buckle; 330: a first sidewall; 340: a second sidewall; 350: a limit groove; 360: a guide post; 370: a support base; 380: a clasp arm; 390: a guide arm; 400: guiding the sheet; 410: leading to the sheet body; 411: a mounting hole; 420: leading to the arm.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention 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 invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The following describes an antenna unit 10 provided by the present invention with reference to fig. 1 to 9.

The guiding of the conventional technology to the patch mounting radiating element can cause interference to the use of the radiating element. In view of the above, the present invention provides an antenna unit 10 including a radiating element 100, a feeding card holder 200, and a guide sheet support holder 300. A radiating element 100 including a balun seat 110 and a radiating surface 120 disposed on the balun seat 110; the feeding card seat 200 is arranged in the radiating element 100, the upper end surface of the feeding card seat 200 is flush with the upper end surface of the radiating surface 120, the feeding card seat 200 comprises a feeding element 210, and the feeding element 210 is electrically connected with the balun seat 110; the guide plate supporting seat 300 comprises a supporting seat 370 and two clamping arms 310 which are oppositely arranged on the supporting seat 370, wherein the supporting seat 370 is arranged on the feeding clamping seat 200 and detachably connected with the feeding clamping seat 200, and a plurality of guide plate mounting positions which are sequentially arranged along the extending direction of the two clamping arms 310 are formed on the two clamping arms.

According to the antenna unit 10 provided by the invention, the detachably connected feed clamping seat 200 is arranged on the radiating element 100, and the guide sheet supporting seat 300 is detachably connected with the feed clamping seat 200, so that the guide sheet 400 is far away from the radiating surface 120 during installation, the electric influence on the antenna radiating element 100 is avoided, and the use state of the radiating element 100 is ensured; in addition, the guide piece 400 support piece seat is synchronously provided with a plurality of groups of guide piece mounting positions, so that the debugging height of the guide piece 400 is increased, and a plurality of groups of guide pieces 400 can be mounted at the same time, thereby greatly meeting the design requirement of the antenna.

Specifically, the balun seat 110 is internally provided with a mounting cavity 111, the radiating surface 120 is provided with a first through groove 121 extending along a first direction, the balun seat 110 is provided with a second through groove 112 extending along a second direction, and the first through groove 121 and the second through groove 112 are communicated with the mounting cavity 111; correspondingly, the feeder card holder 200 includes a first support arm 220 extending along a first direction and a second support arm 230 extending along a second direction, where the first support arm 220 is clamped in the first through slot 121, and the second support arm 230 is clamped in the second through slot 112. Referring to fig. 1, in the present embodiment, the first direction extends along a transverse direction, the second direction extends along a longitudinal direction, the first direction and the second direction are disposed in parallel, and in other alternative embodiments, the first direction and the second direction may be selected from other directions, the first direction and the second direction may be selected mainly according to the structural configuration of the radiating element 100, the shapes of the corresponding first support arm 220 and the second support arm 230 depend on the shapes of the first through slot 121 and the second through slot 112, and the shape of the main body of the feeder card socket 200 also depends on the shape of the mounting cavity 111, which is not limited in the present invention. It should be noted that, in the present embodiment, the feeding element 210 is configured as a feeding arm, and is fixed by a buckle in the feeding card holder 200, and the feeding arm is electrically connected to the balun seat 110 when the feeding card holder 200 is mounted on the radiating element 100. In addition, in order to ensure the connection between the feeding card holder 200 and the radiating element 100, referring to fig. 3 to 5, in the technical solution provided by the present invention, the edge of the first supporting arm 220 is provided with a bending buckle 221, the bending buckle 221 is used to be clamped at the edge of the radiating surface 120, and the shape of the bending buckle 221 can be set according to the specific shape of the radiating surface 120, which is not limited in the present invention.

Further, the second support arm 230 is provided with a plurality of fastening holes 231, and a fastening arm 380 is disposed on a side of the support seat 370 adjacent to the radiating surface 120, and the fastening arm 380 is fastened in any fastening hole 231, so that the support seat 370 is detachably connected with the feeding card seat 200. It should be noted that, the fastening holes 231 on the second support arm 230 may be arranged at equal intervals or in a certain linear relationship, and may be specifically set according to electrical requirements, and the guide plate support base 300 may be installed on different height positions of the radiation surface 120 by adjusting the corresponding fastening holes 231, so that the installation height of the guide plate 400 is increased, and the adjustment scheme of the guide plate 400 may be further increased. In order to facilitate installation of the guide plate support base 300, in the technical scheme provided by the invention, the second support arm 230 is provided with a guide hole 222, one side of the support base 370 close to the radiation surface 120 is also provided with a guide arm 390, and the guide arm 390 is movably inserted into the guide hole 222 so as to guide the installation of the guide plate support base 300.

It should be noted that the number of the first support arms 220 and the second support arms 230 may be one or more, which is not limited in the present invention. In an alternative embodiment, the feeding card holder 200 includes two first support arms 220 arranged in a line and two second support arms 230 arranged in parallel, two snap arms 380 are arranged corresponding to the guide arms 390, and the two snap arms 380 are respectively arranged opposite to the two guide posts 360. Referring to fig. 2, in the case that the feeder card holder 200 is mounted on the radiating element 100 in place, the guide sheet support holder 300 first aligns the guide arm 390 with the guide hole 222 on the first support arm 220 and passes downward; meanwhile, in the downward installation process of the two fastening arms 380 of the guide piece support base 300, the fastening holes 231 on the second support arms 230 on both sides of the feeding card base 200 are fixed according to the electrical debugging requirement, so that the installation of the guide piece support base 300 is completed.

Further, referring to fig. 6-9, a plurality of elastic buckles 320 are disposed on the latch arms 310, each elastic buckle 320 is distributed at intervals along the extending direction of the corresponding latch arm 310, and two elastic buckles 320 disposed on the two latch arms 310 are used for fixing two ends of the guide piece 400 to form a guide piece mounting position. It should be noted that, the elastic buckle 320 facilitates the installation of the guide plate 400, and the plurality of guide plate installation positions that are sequentially arranged can be provided with a plurality of groups of guide plates 400 on one hand, and can also be provided with guide plates 400 with different heights on the other hand, so that the electrical design scheme of the guide plates 400 is further increased.

Further, the retaining arm 310 includes a first side wall 330 and a second side wall 340 disposed at an angle, the elastic buckle 320 is disposed on the first side wall 330, each second side wall 340 is provided with a plurality of limiting grooves 350, and the extending direction of the limiting grooves 350 is parallel to the extending direction of the adjacent elastic buckle 320. It should be noted that, the first side wall 330 and the second side wall 340 may be perpendicular to each other, or may be arranged at a certain angle, or may be arranged in a disconnected form, and only the elastic buckle 320 and the limiting groove 350 are correspondingly distributed, so that the guiding sheet 400 is convenient to install. In addition, the support seat 370 is further provided with a guide post 360, and the guide post 360 is located between the two clamping arms 310.

Referring to fig. 8-9, the present invention further provides a guide plate 400 adapted to the guide plate support base 300, where the guide plate 400 includes a guide plate main body 410 and guide arms 420 disposed at two ends of the guide plate main body 410, the guide plate main body 410 is provided with mounting holes 411, the mounting holes 411 are adapted to the guide posts 360, and a width of each guide arm 420 is equal to a distance between a spigot surface of the elastic buckle 320 and a spigot surface of an adjacent limit slot 350. It should be noted that, the shape of the guide sheet body 410 is not limited by design, and the shape thereof only needs to not affect the limitation of the installation space of the guide sheet 400; when the installation of the guide plate 400 is concerned, the guide hole 222 of the guide plate 400 is sleeved into the guide column 360 of the guide plate support seat 300, the guide plate 400 moves up and down on the guide column 360, when the guide plate 400 reaches a designated height, the guide plate 400 rotates around the guide column 360, the guide arms 420 which are symmetrical on both sides firstly enter the limit grooves 350 on the two clamping arms 310, after the guide arms 420 completely enter, the guide arms 420 are exactly clamped into the elastic buckles 320, and the stop mouth of the elastic buckles 320 limit the movement of the guide arms 420, so that the installation of the guide plate 400 is completed.

The antenna unit 10 provided by the invention has the advantages that the guide piece supporting seat 300 is directly arranged on the feeding card seat 200, and has no direct assembly relation with the radiating element 100, so that the stability of the electrical index of the radiating element 100 is not affected; meanwhile, the guide sheet supporting seat 300 can also be installed at different positions on the feeding card seat 200, so that various debugging heights of the guide sheet 400 are increased; in addition, the guide plate supporting seat 300 is synchronously provided with a plurality of groups of buckle layouts with different heights, the debugging height of the guide plate 400 is further increased, and meanwhile, a plurality of groups of guide plates 400 can be installed, so that the electric design requirements of different antennas are greatly met; meanwhile, the guide piece 400 is rotationally assembled, the buckle is fixed, the installation is convenient and concise, and the manual assembly difficulty is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention 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 invention.

Claims

1. An antenna unit, comprising:

2. The antenna unit of claim 1, wherein a mounting cavity is provided in the balun seat, the radiating surface has a first through slot extending in a first direction, the balun seat has a second through slot extending in a second direction, and both the first through slot and the second through slot are in communication with the mounting cavity; the feed cassette comprises a first supporting arm extending along the first direction and a second supporting arm extending along the second direction, wherein the first supporting arm is clamped in the first through groove, and the second supporting arm is clamped in the second through groove.

3. The antenna unit of claim 2, wherein an edge of the first support arm is provided with a bending buckle, and the bending buckle is used for being clamped at an edge of the radiating surface.

4. The antenna unit according to claim 2, wherein a plurality of fastening holes are formed in the second support arm, a fastening arm is disposed on a side, close to the radiating surface, of the support base, and the fastening arm is fastened to any one of the fastening holes, so that the support base is detachably connected to the feeding card base.

5. The antenna unit of claim 4, wherein the second support arm is provided with a guide hole, and a guide arm is further provided on a side of the support base near the radiation surface, and the guide arm is movably inserted into the guide hole.

6. The antenna unit according to claim 5, wherein the feeding socket comprises two first support arms arranged in a line and two second support arms arranged in parallel, the two fastening arms are arranged corresponding to the guide arms, and the two fastening arms are arranged opposite to the two guide posts respectively.

7. The antenna unit according to claim 1, wherein a plurality of elastic buckles are provided on each of the latch arms, each of the elastic buckles is distributed at intervals along the extending direction of the corresponding latch arm, and two elastic buckles provided on two of the latch arms are used for fixing two ends of the guide piece to form one guide piece mounting position.

8. The antenna unit of claim 7, wherein each of the retaining arms includes a first side wall and a second side wall disposed at an angle to each other, each of the elastic buckles is disposed on the first side wall, each of the second side walls is provided with a plurality of limiting grooves, and an extending direction of each of the limiting grooves is parallel to an extending direction of an adjacent elastic buckle.

9. The antenna unit of claim 8, wherein the support base is further provided with a guide post, and the guide post is located between the two detent arms.

10. The antenna unit of claim 9, wherein the guide piece supporting seat further comprises a plurality of guide pieces, each guide piece comprises a guide piece main body and guide arms arranged at two ends of the guide piece main body, the guide piece main body is provided with a mounting hole, the mounting hole is matched with the guide post, and the width of each guide arm is equal to the distance between the spigot surface of the elastic buckle and the spigot surface of the adjacent limit groove.