CN219123467U - Antenna assembly and base station - Google Patents

Abstract

The disclosure provides an antenna assembly and a base station, and belongs to the technical field of communication. The antenna assembly comprises a lower bracket, an upper bracket, an antenna, a central shaft and a locking piece, wherein the lower bracket supports the antenna, the central shaft is fixedly connected with the antenna and penetrates through the upper bracket, and the locking piece is in threaded connection with the top end of the central shaft. The antenna assembly has a first state and a second state, in the first state, the locking piece presses the upper bracket, the locking piece and the upper bracket are fixed, the positions of the central shaft and the antenna are locked, and the beam direction of the antenna is fixed. In the second state, the locking piece releases the upper bracket, so that the central shaft and the antenna can rotate together, and along with the rotation of the antenna, the beam direction of the antenna is correspondingly adjusted.

Description

Antenna assembly and base station

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an antenna assembly and a base station.

Background

With the development of communication technology, the requirements of a communication system on the beam pointing precision of an antenna are higher and higher. After the antenna is installed, if a coverage blind area exists, the beam direction of the antenna needs to be adjusted to a direction meeting the requirement.

Therefore, how to adjust the beam direction of the antenna is a key technical problem.

Disclosure of Invention

The present disclosure provides an antenna assembly and a base station, where the antenna assembly has a first state and a second state, in the first state, a position of an antenna in the antenna assembly is locked by a locking member, and in the second state, the locking member is unlocked, and the antenna can rotate with a central axis as a rotation axis, so that a beam direction of the antenna can be adjusted. The technical scheme of the antenna assembly and the base station is as follows:

in a first aspect, the present disclosure provides an antenna assembly including a lower bracket, an upper bracket, an antenna, a central shaft, and a locking member. The lower support and the upper support are used for being connected with the holding pole or the iron tower, and the lower support supports the antenna. The central shaft is fixedly connected with the antenna, penetrates through the upper bracket, and the locking piece is in threaded connection with the top end of the central shaft. The antenna assembly has a first state in which the locking member presses against the upper bracket and a second state in which the locking member releases the upper bracket.

Wherein, the lower bracket and the upper bracket can be collectively called as an antenna bracket and are used for connecting an antenna with a holding pole or an iron tower.

The antenna comprises a shell and an electric device positioned in the shell, wherein the shell has good electromagnetic wave penetration characteristics in terms of electric performance, and can withstand the influence of external severe environment in terms of mechanical performance, so that the electric device in the antenna can be protected from the influence of external environment.

The central shaft is fixedly connected with the antenna, so that the antenna and the central shaft can rotate together relative to the lower bracket and the upper bracket. The central axis may coincide with the central axis of the antenna.

The locking piece is in threaded connection with the central shaft and is used for pressing the upper bracket in a first state and loosening the upper bracket in a second state. In the first state, the locking piece and the upper bracket are fixed, the central shaft is fixed, the position of the antenna is locked, and the beam direction of the antenna is fixed. In the second state, the locking piece releases the upper bracket, so that the antenna and the central shaft can rotate relative to the lower bracket and the upper bracket, and the beam direction of the antenna is correspondingly adjusted in the rotating process.

According to the technical scheme, after the antenna is installed, if the beam direction of the antenna needs to be adjusted, firstly, the locking piece is loosened, so that the upper bracket is loosened by the locking piece, the antenna can be rotated, and a worker can rotate the antenna to a corresponding angle of the required beam direction. Then, the locking piece is screwed so that the locking piece presses the upper bracket, the position of the antenna is locked, and the beam pointing adjustment of the antenna is completed.

In one possible implementation, in the second state, the lower support is rotationally connected to the bottom of the antenna, and the axis about which the rotational connection is made coincides with the central axis. Thus, the antenna can be rotated more smoothly.

In one possible implementation, the lower bracket has two clamping arms and the side wall of the bottom of the antenna has two runners. The antenna assembly further comprises two sliding connecting pieces, wherein the two sliding connecting pieces are respectively connected with the two clamping arms and respectively extend into the two sliding grooves, so that the lower bracket is rotationally connected with the antenna.

In one possible implementation, the sliding connection comprises a locking screw and a locking nut, the locking screw passing through the clamping arm and the runner, the locking screw and the locking nut being threaded.

In the first state, the lock nut is screwed, so that the lock nut fixes the antenna and the lower bracket, and the antenna (or called a central shaft) and the upper bracket are fixed by combining the locking piece, so that the antenna is more stable in the first state. In the second state, the lock nut is loosened, and thus, the antenna and the lower bracket can rotate relatively.

In one possible implementation, the bottom end of the antenna has a convex annular edge, through which the chute extends radially. Like this, the both sides of spout all communicate with the outside of antenna for sliding connection spare can not stretch into the inside of the casing of antenna, is favorable to the staff to operate sliding connection spare.

In one possible implementation, the side wall of the antenna is provided with an angle indicator along the direction of the chute, the angle indicator being used to indicate the angle at which the antenna is located. When the sliding connection piece is opposite to a certain angle mark, the antenna is rotated to the angle corresponding to the angle mark.

In one possible implementation manner, the central shaft is fixedly connected with the top end and the bottom end of the antenna, so that the connection between the central shaft and the antenna is more stable, the central shaft can be better used as a bearing member to bear the antenna, and the strength of the antenna assembly is improved.

In one possible implementation, the central shaft is fixedly connected to the lower and upper end caps of the antenna.

In one possible implementation, the locking element is a ring nut or a ring screw, so that the operator can easily rotate the locking element. In the case of a ring nut, the top end of the central shaft has an external thread. In the case of a locking member being a eye screw, the top end of the central shaft has an internal thread.

In one possible implementation, the antenna assembly further includes a flexible spacer positioned between the upper bracket and the locking element. Therefore, the pressing effect of the locking piece pressing the upper bracket can be improved, the pressing force is increased, and the locking effect of the locking piece is improved.

In addition, the upper bracket can be prevented from being damaged by the locking piece. Wherein, the flexible gasket can be a plastic part.

In one possible implementation, the flexible gasket has a central collar and locating projections, and the upper bracket has a central shaft bore and a gasket locating hole. The central collar extends into the central shaft bore. The positioning protrusions extend into the gasket positioning holes, thereby limiting the rotation of the flexible gasket.

In one possible implementation, the positioning projections and the spacer positioning holes are two.

In one possible implementation, the end face of the bottom of the antenna has a plurality of first mounting holes arranged in a circumferential direction, and the antenna assembly further includes at least one first screw. In the first state, the first screw penetrates through the lower bracket and is screwed in part of the first mounting hole, so that the antenna and the lower bracket are fixedly connected. In the second state, the first screw is separated from the first mounting hole, so that the antenna and the lower bracket are not fixedly connected, and the antenna can rotate relative to the lower bracket.

In one possible implementation, the end face of the top of the antenna has a plurality of second mounting holes arranged in a circumferential direction, and the antenna assembly further includes at least one second screw. In the first state, the second screw penetrates through the upper bracket and is screwed in part of the second mounting hole, so that the fixed connection between the antenna and the upper bracket is more stable. In the second state, the second screw is disengaged from the second mounting hole, thereby avoiding the second screw from interfering with the rotation of the antenna.

In a second aspect, the present disclosure provides a base station comprising an antenna assembly according to any one of the first aspects.

The antenna assembly may include an antenna, which may be referred to as a base station antenna (Antenna of base station), and may be a multi-frequency, multi-array antenna.

A base station, which may also be referred to as an access network device, may be located in a base station subsystem (base btation bubsystem, BBS), a terrestrial radio access network (UMTS terrestrial radio access network, UTRAN), or an evolved terrestrial radio access network (evolved universal terrestrial radio access, E-UTRAN) for performing cell coverage of signals to enable communication between a terminal and a wireless network.

The base station may be a base transceiver station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile comunication, GSM) or (code division multiple access, CDMA) system, a node B (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved node B (eNB or eNodeB) in a long term evolution (long term evolution, LTE) system, or a radio controller in a cloud radio access network (cloud radio access network, CRAN) scenario. Or the base station may be a relay station, an access point, a vehicle-mounted device, a wearable device, a g node (gnob or gNB) in a New Radio (NR) system, an access network device in a future evolution network, or the like.

Drawings

Fig. 1 is a schematic diagram of a system architecture of a communication system provided in the present common embodiment;

fig. 2 is a schematic diagram of an application scenario of an antenna according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an internal device of an antenna according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an antenna assembly provided by an embodiment of the present disclosure;

fig. 5 is a schematic diagram of an antenna assembly provided by an embodiment of the present disclosure;

fig. 6 is an exploded view of an antenna assembly provided by an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a connection manner between a lower bracket and an antenna according to an embodiment of the disclosure;

fig. 8 is a cross-sectional view of an antenna provided by an embodiment of the present disclosure;

fig. 9 is a partial exploded view of an antenna provided by an embodiment of the present disclosure;

FIG. 10 is a schematic illustration of an upper bracket and flexible gasket provided by an embodiment of the present disclosure;

fig. 11 is a schematic diagram of an antenna assembly provided by an embodiment of the present disclosure;

fig. 12 is a bottom view of an antenna assembly provided by an embodiment of the present disclosure;

fig. 13 is a top view of an antenna assembly provided by an embodiment of the present disclosure.

Description of the drawings

100. The device comprises a holding pole, 200, a radio frequency processing unit, 300, a baseband processing unit, 400 and a transmission line;

1. a lower bracket 11, a lower bracket main body 111, clamping arms 12, a first clamping piece 13 and a first connecting piece;

2. the upper bracket, 21, the upper bracket main body, 211, the central shaft perforation, 212, the gasket positioning hole, 22, the second clamping piece, 23 and the second connecting piece;

3. the antenna, 301, the radiation unit, 302, the reflecting plate, 303, the feed network, 3031, the power divider, 3032, the combiner, 3033, the filter, 3034, the transmission component, 3035, the phase shifter, 3036 and the calibration network;

31. the antenna cover comprises an antenna housing 32, a lower end cover 320, an annular edge 321, a chute 322, a first mounting hole 33, an upper end cover 331 and a second mounting hole;

4. a central shaft 41, a first nut 42, a gasket 43, a first flange 44, a second flange 441, a supporting protrusion 45, and a second nut;

5. a locking member;

6. a sliding connector 61, a locking screw 62 and a locking nut;

7. a first screw;

8. a second screw;

9. flexible gasket, 91, central bulge loop, 92, location arch.

Detailed Description

The following describes an application scenario of the technical solution provided by the embodiments of the present disclosure:

fig. 1 schematically illustrates a system architecture of a communication system to which an embodiment of the present disclosure is applicable, where the system architecture includes a base station and a terminal, and wireless communication may be implemented between the base station and the terminal, as shown in fig. 1.

The base station, which may also be referred to as an access network device, may be located in a base station subsystem (base btation bubsystem, BBS), a terrestrial radio access network (UMTS terrestrial radio access network, UTRAN), or an evolved terrestrial radio access network (evolved universal terrestrial radio access, E-UTRAN) for performing cell coverage of signals to enable communication between the terminal and the wireless network.

Illustratively, the base station may be a base transceiver station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile comunication, GSM) or (code division multiple access, CDMA) system, a node B (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved node B (eNB or eNodeB) in a long term evolution (long term evolution, LTE) system, or a radio controller in a cloud radio access network (cloud radio access network, CRAN) scenario. Or the base station may be a relay station, an access point, a vehicle-mounted device, a wearable device, a g node (gnob or gNB) in a New Radio (NR) system, an access network device in a future evolution network, or the like, and the embodiments of the present disclosure are not limited.

The base station is equipped with an antenna to enable transmission of signals in space. Fig. 2 shows a schematic diagram of an application scenario of the antenna provided by the base station shown in fig. 1. Fig. 2 shows the structure of antenna 3 and pole 100. The antenna 3 may be mounted on the pole 100 or the tower through a bracket, so that the antenna 3 may receive or transmit signals. Wherein the antenna 3 and the holder may be collectively referred to as an antenna assembly.

In addition, the base station may further include a radio frequency processing unit 200 and a baseband processing unit 300. As shown in fig. 2, the baseband processing unit 300 may be connected to the antenna 3 through the radio frequency processing unit 200. In some examples, the radio frequency processing unit 200 may also be referred to as a remote radio unit (remote radio unit, RRU), and the baseband processing unit 300 may also be referred to as a baseband unit (BBU).

In some examples, as shown in fig. 2, the radio frequency processing unit 200 may be integrally disposed with the antenna 3, and the baseband processing unit 300 is located at a far end of the antenna 3, and in this case, the radio frequency processing unit 200 may be collectively referred to as an active antenna unit (active antenna unit, AAU) with the antenna 3. Fig. 2 is only one example of the positional relationship between the rf processing unit 200 and the antenna 3. In other examples, the radio frequency processing unit 200 and the baseband processing unit 300 may also be located at the distal end of the antenna 3 at the same time. The radio frequency processing unit 200 and the baseband processing unit 300 may be connected through a transmission line 400.

Further, fig. 3 is a schematic diagram of the internal components of the antenna 3 according to one possible embodiment of the present disclosure. As shown in fig. 3, the antenna 3 may include a radiating element 301, a Reflecting Plate 302, and a feed network 303.

The radiating element 301 may also be referred to as an antenna element, a dipole, an antenna element, or the like, and the radiating element 301 is a unit that forms a basic structure of an antenna array and is capable of effectively radiating or receiving an antenna signal. The frequencies of the different radiating elements 301 may be the same or different. The reflection plate 302 may also be called a chassis, an antenna panel, a metal reflection surface, or the like, and the reflection plate 302 may reflect and collect a received signal at a receiving point. The radiation unit 301 is typically disposed on one side of the reflection plate 302, which not only greatly enhances the signal receiving or transmitting capability, but also serves to block and shield interference signals from the back side of the reflection plate 302 (the back side of the reflection plate 302 in the embodiment of the present disclosure refers to the side opposite to the side of the reflection plate 302 on which the radiation unit 301 is disposed).

The feed network 303 is located between the radiating element 301 and the power amplifier of the radio frequency processing unit 200. The feed network 303 may provide specific power and phase to the radiating element 301. For example, the feed network 303 may include a power divider 3031 (or a combiner 3032) that may be used in either a forward direction or a reverse direction for dividing a signal into multiple signals or combining multiple signals into a single. The feed network 303 may also include a filter 3033 for filtering out interfering signals. For electrically tunable antennas, the feed network 303 may further comprise a transmission component 3034 to achieve different radiation beam orientations, the phase shifter 3035 changing the maximum direction of the signal radiation. In some cases, the phase shifter 3035 also has the function of the power divider 3031 (or the combiner 3032), and the power divider 3031 (or the combiner 3032) may be omitted in the feed network 303. In some examples, the feed network 303 may also include a calibration network 3036 to obtain a desired calibration signal. The different devices included in the feed network 303 may be connected by transmission lines and connectors.

With the development of wireless communication technology, the multi-frequency multi-array antenna technology has become a mainstream form of base station antennas, and the requirements of wireless communication systems on beam pointing accuracy of the antennas are higher and higher. After the conventional base station antenna hanging tower is installed, the beam pointing direction of the antenna is fixed, and if a coverage blind area exists, the beam pointing direction of the antenna needs to be adjusted to move to an area or a direction meeting the requirements.

Typically, the adjustment of the beam direction of the base station antenna is achieved by the internal transmission component 3034 and the phase shifter 3035 of the antenna, however, the angle range of adjusting the antenna beam in this way is smaller, which may not meet the angle adjustment requirement of the antenna beam direction. Where beam pointing refers to the pointing of the maximum radiation beam of the antenna.

In view of the above technical problems, the embodiments of the present disclosure provide an antenna assembly, where the antenna assembly includes an antenna 3 and a corresponding structural member, and the antenna 3 can conveniently adjust beam pointing within a larger angle range.

The following is an exemplary description of an antenna assembly provided in an embodiment of the present disclosure:

as shown in fig. 4 to 6, the antenna assembly includes a lower bracket 1, an upper bracket 2, an antenna 3, a center shaft 4, and a locking member 5. The lower bracket 1 and the upper bracket 2 are used for being connected with a pole 100 or an iron tower, and the lower bracket 1 supports an antenna 3. The central shaft 4 is fixedly connected with the antenna 3, the central shaft 4 penetrates through the upper bracket 2, and the locking piece 5 is in threaded connection with the top end of the central shaft 4. The antenna assembly has a first state in which the locking member 5 is pressed against the upper bracket 2 and a second state in which the locking member 5 is released from the upper bracket 2, e.g. the locking member 5 is separated from the upper bracket 2.

Wherein the lower bracket 1 and the upper bracket 2 may be collectively referred to as an antenna bracket for connecting the antenna 3 with the pole 100 or the tower.

The antenna 3 includes a housing having good electromagnetic wave transmission characteristics in terms of electrical performance and being able to withstand the influence of an external severe environment in terms of mechanical performance, and an electric device located inside the housing, thereby functioning to protect the electric device inside the antenna from the external environment. In some examples, as shown in fig. 6, the housing includes a radome 31, a lower end cover 32, and an upper end cover 33, the lower end cover 32 and the upper end cover 33 closing openings at both ends of the radome 31. For the relevant contents of the electrical devices inside the housing, reference may be made to fig. 3 and the relevant contents above, and will not be repeated here.

The central shaft 4 is fixedly connected with the antenna 3, and the antenna 3 and the central shaft 4 can rotate together relative to the lower bracket 1 and the upper bracket 2. The central axis 4 may coincide with the central axis of the antenna 3.

The locking member 5 is screwed to the central shaft 4 and is adapted to press the upper bracket 2 in a first state and to release the upper bracket 2 in a second state. In the first state, the locking member 5 and the upper bracket 2 are fixed, and the central shaft 4 is fixed, the position of the antenna 3 is locked, and the beam direction of the antenna 3 is fixed. In the second state, the locking element 5 releases the upper bracket 2, e.g. the locking element 5 is separated from the upper bracket 2, and the antenna 3 and the central shaft 4 can be rotated relative to the lower bracket 1 and the upper bracket 2, during which rotation the beam of the antenna 3 is directed to be adjusted accordingly.

To facilitate the rotation of the locking element 5 by the staff, the locking element 5 is in some examples a ring nut, the top end of the central shaft 4 being provided with an external thread. In other examples, the locking member 5 is a flying screw, and the top end of the central shaft 4 has an internal thread.

According to the technical scheme provided by the embodiment of the disclosure, after the antenna 3 is installed, if the beam direction of the antenna 3 needs to be adjusted, firstly, the locking piece 5 is unscrewed, so that the locking piece 5 releases the upper bracket 2, the antenna 3 can rotate, and a worker can rotate the antenna 3 to a corresponding angle of the required beam direction. Then, the locking member 5 is screwed so that the locking member 5 presses the upper bracket 2, and the position of the antenna 3 is locked, and the beam pointing adjustment of the antenna 3 is completed.

The implementation of the lower bracket 1 and the upper bracket 2 is exemplarily described below:

in some examples, as shown in fig. 5 and 6, the lower bracket 1 includes a lower bracket body 11, a first clamping member 12, and a first connecting member 13, the lower bracket body 11 and the first clamping member 12 clamping the holding pole 100, the first connecting member 13 connecting the lower bracket body 11 and the first clamping member 12. Wherein the first connection member 13 may comprise a bolt and a nut.

In some examples, as shown in fig. 5 and 6, the upper bracket 2 includes an upper bracket body 21, a second clamping member 22, and a second connecting member 23, the upper bracket body 21 and the second clamping member 22 clamping the holding pole 100, the second connecting member 23 connecting the upper bracket body 21 and the second clamping member 22. The second connection member 23 may include a bolt and a nut, among others.

The following describes an exemplary connection manner between the lower bracket 1 and the antenna 3:

in some examples, as shown in fig. 4-7, the lower bracket 1 is rotatably connected to the bottom of the antenna 3, and the axis about which the rotational connection is about coincides with the central axis 4. Thus, the antenna 3 can be rotated more smoothly.

In some examples, as shown in fig. 7, the lower bracket 1 (lower bracket body 11) has two clamp arms 111, and the side wall of the bottom of the antenna 3 has two slide grooves 321. The antenna assembly further comprises two sliding connectors 6, wherein the two sliding connectors 6 are respectively connected with the two clamping arms 111 and respectively extend into the two sliding grooves 321. Thereby, a rotational connection of the subframe 1 with the antenna 3 is achieved.

In some examples, to improve stability of the antenna 3 in the first state, as shown in fig. 7, the sliding connector 6 includes a locking screw 61 and a locking nut 62, the locking screw 61 passing through the clamp arm 111 and the slide groove 321, the locking screw 61 and the locking nut 62 being screw-coupled.

In the first state, when the lock nut 62 is screwed, the lock nut 62 fixes the antenna 3 and the lower bracket 1, and the antenna 3 (or referred to as the center shaft 4) and the upper bracket 2 are fixed in combination with the locking member 5, so that the antenna 3 is more stable in the first state. In the second state, the lock nut 62 is loosened, and thus, the antenna 3 and the lower bracket 1 can be rotated relatively.

Next, a procedure of adjusting the beam pointing direction of the antenna 3 is exemplarily described:

first, the locking piece 5 is unscrewed, so that the locking piece 5 releases the upper bracket 2, and the lock nut 62 is unscrewed, so that the antenna 3 is unlocked from the lower bracket 1. Then, the antenna 3 is rotated to the desired beam pointing at the corresponding angle. Finally, the locking member 5 and the lock nut 62 are screwed so that the antenna 3 is fixed at the current position, and the beam pointing adjustment of the antenna is completed.

In some examples, the bottom end of the antenna 3 has a convex annular edge 320, and the runner 321 extends through the annular edge 320. Through setting up spout 321 on annular edge 320 for spout 321's both sides all communicate with the outside of antenna 3's casing, make sliding connection spare 6 can not stretch into the inside to antenna 3's casing, the staff of being convenient for operates sliding connection spare 6.

In some examples, as shown in fig. 7, the annular rim 320 is located on the lower end cap 32, which lower end cap 32 may also be referred to as an end cap flange.

In some examples, as shown in fig. 7, the lock nut 62 is located outside of the annular rim 320, thereby facilitating the operation of the lock nut 62 by a worker.

In some examples, to facilitate the operator in determining the corresponding angular position of the antenna 3, a corresponding angular identifier may be set for the operator to observe. For example, an angle mark may be disposed along the sliding slot 321, and when the sliding connection 6 is opposite to a certain angle mark, it indicates that the antenna 3 rotates to an angle corresponding to the angle mark.

In the following, an exemplary implementation of the fixed connection of the central axis 4 to the antenna 3 is described:

in some examples, as shown in fig. 8 and 9, the central shaft 4 is fixedly connected to both the top end and the bottom end of the antenna 3, so that the connection between the central shaft 4 and the antenna 3 is more stable, and the central shaft 4 can better serve as a bearing member to bear the antenna 3.

As shown in fig. 8 and 9, the center shaft 4 is fixedly connected to the lower end cap 32 and the upper end cap 33 of the antenna 3, for example.

In some examples, as shown in fig. 8 and 9, the lower end of the central shaft 4 passes through the lower end cap 32, and the lower end of the central shaft 4 has a shoulder that abuts against the inside of the lower end cap 32. The portion of the central shaft 4 passing through the lower end cap 32 has an external thread, and the first nut 41 is screwed with the lower end of the central shaft 4 and presses the lower end cap 32. Thereby, a fixed connection of the central shaft 4 with the lower end cap 32 is achieved. In some examples, as shown in fig. 8 and 9, a spacer 42 may be added between the first nut 41 and the lower end cap 32.

In some examples, as shown in fig. 8 and 9, the upper end of the central shaft 4 passes through the first flange 43, and the first flange 43 abuts against a shoulder of the central shaft 4, and the second nut 45 is screwed with the central shaft 4 and abuts against the first flange 43, thereby fixing the first flange 43 on the central shaft 4. The first flange 43 is located at the inner side of the upper end cap 33, the second flange 44 is located at the outer side of the upper end cap 33, and the first flange 43 and the second flange 44 may be fixedly connected by bolts or screws. Thereby, a fixed connection of the central shaft 4 and the upper end cap 33 is achieved.

In some examples, as shown in fig. 8, the second flange 44 has a supporting projection 441 for abutting against the upper bracket 2 in the first state to limit the amount of deformation of the lower upper bracket 2 when the locking member 5 is screwed. In the second state, the supporting projection 441 may be separated from the upper bracket 2 to avoid affecting the rotation of the center shaft 4 and the antenna 3.

In some examples, to enhance the locking effect of the locking element 5, the antenna assembly further comprises a flexible spacer 9, as shown in fig. 10, the central shaft 4 passing through the flexible spacer 9, and the flexible spacer 9 being located between the upper bracket 2 and the locking element 5. Thereby, the pressing effect of the locking piece 5 pressing the upper bracket 2 can be improved, the pressing force can be increased, and the locking piece 5 can be prevented from damaging the upper bracket 2.

Wherein the flexible pad 9 may be a plastic part.

In some examples, as shown in fig. 10, the flexible gasket 9 has a central collar 91 and a positioning boss 92, and the upper bracket 2 (upper bracket body 21) has a central shaft through hole 211 and a gasket positioning hole 212. The central collar 91 extends into the central shaft bore 211. The positioning projections 92 protrude into the spacer positioning holes 212, thereby restricting the rotation of the flexible spacer 9.

In some examples, as shown in fig. 10, the locating boss 92 and the spacer locating hole 212 are two.

In addition to the solution shown in fig. 4-7, in which the sub-mount 1 is rotatably connected to the antenna 3, in other examples, as shown in fig. 11 and 12, the sub-mount 1 may also be fixedly connected to the bottom end of the antenna 3 by means of a first screw 7.

In some examples, as shown in fig. 11 and 12, the end face (lower end cover 32) of the bottom of the antenna 3 has a plurality of first mounting holes 322 arranged in the circumferential direction. The antenna assembly further comprises at least one first screw 7 (e.g. two) in a first state in which the at least one first screw 7 passes through the sub-mount 1 and is screwed into a part of the first mounting hole 322, and in a second state in which the at least one first screw 7 is disengaged from the first mounting hole 322.

Wherein the first mounting holes 322 may be uniformly distributed in the circumferential direction. In some examples, the number of first mounting holes 322 is greater than 8, for example, may be 12.

In some examples, as shown in fig. 11 and 13, an end face (upper end cap 33) of the top of the antenna 3 has a plurality of second mounting holes 331 arranged in the circumferential direction. The antenna assembly further comprises at least one second screw 8 (e.g. two) in a first state in which the at least one second screw 8 passes through the upper bracket 2 and is screwed into a portion of the second mounting hole 331, and in a second state in which the at least one second screw 8 is disengaged from the second mounting hole 331.

Wherein, the second mounting holes 331 may be uniformly distributed in the circumferential direction. In some examples, the number of second mounting holes 331 is greater than 8, for example, may be 12.

Next, a procedure of adjusting the beam pointing direction of the antenna 3 is exemplarily described:

first, the locking piece 5 is unscrewed, and the first screw 7 and the second screw 8 are unscrewed, so that the antenna 3 is unlocked from both the lower bracket 1 and the upper bracket 2. Then, the antenna 3 is rotated to a corresponding angle to which the desired beam is directed (when the antenna 3 is rotated, the first mounting hole 322 needs to be opposite to the mounting hole on the lower bracket 1, and the second mounting hole 331 needs to be opposite to the counter hole on the upper bracket 2). Finally, the locking piece 5, the first screw 7 and the second screw 8 are screwed, the antenna 3 is fixed at the current position, and the beam pointing adjustment of the antenna is completed.

Due to the presence of the first mounting hole 322 and the second mounting hole 331, the angle at which the antenna 3 can rotate is a fixed value for this solution.

The embodiment of the disclosure provides a base station, which comprises the antenna assembly.

For details of the base station, reference may be made to the foregoing description of the base station, which is not repeated herein.

The terminology used in the description of the embodiments of the disclosure is for the purpose of describing the embodiments of the disclosure only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used in the embodiments of the present disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly. "plurality" means two or more, unless expressly defined otherwise.

The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the disclosure.

Claims (11)

1. An antenna assembly, characterized in that the antenna assembly comprises a lower bracket (1), an upper bracket (2), an antenna (3), a central shaft (4) and a locking piece (5);

the lower bracket (1) and the upper bracket (2) are used for being connected with the holding pole (100), and the lower bracket (1) supports the antenna (3);

the central shaft (4) is fixedly connected with the antenna (3), the central shaft (4) penetrates through the upper bracket (2), and the locking piece (5) is in threaded connection with the top end of the central shaft (4);

the antenna assembly has a first state in which the locking member (5) presses against the upper bracket (2) and a second state in which the locking member (5) releases the upper bracket (2).

2. An antenna assembly according to claim 1, characterized in that in the second state the lower bracket (1) is in rotational connection with the bottom of the antenna (3) and the axis about which the rotational connection is around coincides with the central axis (4).

3. The antenna assembly according to claim 2, characterized in that the lower bracket (1) has two clamping arms (111), the side wall of the bottom of the antenna (3) having two sliding grooves (321);

the antenna assembly further comprises two sliding connectors (6), wherein the two sliding connectors (6) are respectively connected with the two clamping arms (111) and respectively extend into the two sliding grooves (321).

4. An antenna assembly according to claim 3, characterized in that the sliding connection (6) comprises a locking screw (61) and a locking nut (62);

the locking screw (61) passes through the clamping arm (111) and the sliding groove (321), and the locking screw (61) is in threaded connection with the locking nut (62);

in the first state, the lock nut (62) is tightened, and in the second state, the lock nut (62) is loosened.

5. An antenna assembly according to claim 3, characterized in that the bottom end of the antenna (3) has a protruding annular rim (320), the runner (321) extending radially through the annular rim (320).

6. The antenna assembly according to claim 1, characterized in that the end face of the bottom of the antenna (3) has a plurality of first mounting holes (322) arranged circumferentially;

the antenna assembly further comprises at least one first screw (7), in the first state the at least one first screw (7) passes through the lower bracket (1) and is screwed in part of the first mounting hole (322), in the second state the at least one first screw (7) is disengaged from the first mounting hole (322).

7. The antenna assembly according to any of claims 1-6, characterized in that the end face of the top of the antenna (3) has a plurality of second mounting holes (331) arranged in the circumferential direction;

the antenna assembly further comprises at least one second screw (8), in the first state the at least one second screw (8) passes through the upper bracket (2) and is screwed in a part of the second mounting hole (331), in the second state the at least one second screw (8) is disengaged from the second mounting hole (331).

8. An antenna assembly according to any of claims 1-6, characterized in that the central axis (4) is fixedly connected to both the top and bottom ends of the antenna (3).

9. An antenna assembly according to any one of claims 1-6, characterized in that the locking element (5) is a ring nut or a ring screw.

10. The antenna assembly according to any of claims 1-6, characterized in that the antenna assembly further comprises a flexible spacer (9), the flexible spacer (9) being located between the upper bracket (2) and the locking element (5).

11. A base station, characterized in that it comprises an antenna according to any of claims 1-10.

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