Active antenna device and base station
By setting the passive side and the active side inside the housing in the active antenna device, and using the housing sealing connection and cylindrical elastic shield, the problems of cumbersome assembly and poor sealing are solved, and high strength and low The failed sealing effect extends the service life of the device.
Patent Information
- Application Number
- CN201911360271.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2039-12-25
AI Technical Summary
The assembly process of existing active antenna devices is complicated, the sealing properties are poor, and the midframe adapter is prone to deform, resulting in high assembly quality risks, high seal failure probability, and insufficient structural strength.
An active antenna device is designed, in which both the passive side and the active side are arranged inside the housing, and are sealed and connected through the upper and lower housings of the housing, simplifying the sealing process and reducing sealing gaps. A cylindrical elastic shield and shield cover are used. Combined, it realizes radio frequency signal shielding and waterproofing effects.
An active antenna device with good sealing properties is realized, the assembly process is simplified, the probability of seal failure is reduced, the overall structural strength is improved, and the service life is extended.
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Figure CN113036422B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of communication equipment, and in particular, to an active antenna device and a base station including the active antenna device. Background Art
[0002] With the development of wireless communication technology, especially the development of 5G technology, the high integration of various units in wireless communication equipment has become a mainstream development trend, and active antenna devices have also entered the era of mass application. In related technologies, the active side and the passive side of the active antenna device of 5G equipment are usually integrated in the same device, and a middle frame adapter is set between the active side and the passive side. The middle frame adapter can shield the RF signal of the active side in some scenarios, and can also provide an installation and fixing interface for the components of the passive side in scenarios with larger antenna sizes.
[0003] However, the assembly process of existing active antenna devices is relatively complicated, and there are many parts on the device that need to be waterproof and sealed, which poses a high risk of waterproof failure. In addition, in large-size device applications, the middle frame adapter is usually a thin plate that is extremely easy to deform, which brings certain risks to the assembly quality of the entire machine.
[0004] Therefore, how to provide an active antenna device with good sealing performance, simple structure and high strength has become a technical problem to be solved urgently in the field. Summary of the invention
[0005] The present disclosure aims to provide an active antenna device and a base station, wherein the active antenna device has good sealing performance, a simple structure and high overall structural strength.
[0006] To achieve the above-mentioned purpose, as one aspect of the present disclosure, an active antenna device is provided, the active antenna device comprising a passive antenna component, an active radio frequency circuit component, a radio frequency connection component and a shielding cover, the active radio frequency circuit component is used to send a radio frequency signal to the passive antenna component through the radio frequency connection component, the passive antenna component is used to broadcast and send a wireless signal according to the radio frequency signal, wherein the active antenna device also comprises a shell, the passive antenna component, the active radio frequency circuit component, the radio frequency connection component and the shielding cover are all arranged inside the shell, the shielding cover is connected to the shell, and encloses a containing space with the inner wall of the shell, and the active radio frequency circuit component is located in the containing space;
[0007] The shell includes an upper shell and a lower shell, the upper shell is located on a side of the passive antenna assembly away from the active RF circuit assembly, the lower shell is located on a side of the active RF circuit assembly away from the passive antenna assembly, and the upper shell is sealed and connected to the lower shell.
[0008] Optionally, one end of the RF connection component is located in the accommodating space and connected to the active RF circuit component, and the other end of the RF connection component passes through a connection hole formed on the shielding cover and is connected to the passive antenna component.
[0009] Optionally, the shielding cover comprises a shielding cover plate and a shielding side plate, the shielding cover plate and the shielding side plate are connected to each other, and the connecting hole is formed on the shielding cover plate.
[0010] Optionally, the RF connection component includes an RF connection body and a shielding component, the RF connection body passes through the connection hole and electrically connects the active RF circuit component with the passive antenna component, the shielding component is arranged around the RF connection body, and the shielding component is connected to the shielding cover to close the gap between the connection hole and the RF connection body.
[0011] Optionally, the shielding member is cylindrical, and the area of the opening at one end of the shielding member is larger than the area of the opening at the other end, the end of the shielding member with a smaller opening area is arranged on the RF connection body and wraps the RF connection body, and the end of the shielding member with a larger opening area is in contact with the shielding cover and electrically connected.
[0012] Optionally, the shielding member is elastic, and a plurality of notches are formed at one end of the shielding member connected to the shielding cover. The plurality of notches surround the axis of the shielding member, and the shielding member is in an elastically deformed state. The portion of the shielding member located between two adjacent notches fits with the shielding cover.
[0013] Optionally, the RF connection body includes a connecting column, an RF connector and an antenna connector, the RF connector is electrically connected to the active RF circuit component, the antenna connector is electrically connected to the passive antenna component, the connecting column electrically connects the RF connector to the antenna connector, a fixing flange is formed on the side of the RF connector facing the passive antenna component, the end of the shielding member with a smaller opening area is fixed on the fixing flange, and the distance between the fixing flange and the shielding cover is less than the axial length of the shielding member in an undeformed state.
[0014] Optionally, the active antenna device also includes a power supply component, the power supply component includes a power supply and a power supply shielding shell, the power supply is located in the power supply shielding shell, the power supply component is used to provide electrical energy to the active RF circuit component, and the power supply component is located inside the shell and outside the accommodating space.
[0015] Optionally, the active antenna device further includes a power supply, the power supply component is used to provide electrical energy to the active radio frequency circuit component, and the power supply is arranged in the accommodating space.
[0016] As a second aspect of the present disclosure, a base station is provided, wherein the base station includes the active antenna device mentioned above.
[0017] In the antenna device and base station provided by the present disclosure, both the active side and the passive side are arranged inside the housing, and no matter whether the size of the passive side is the same as that of the active side, there is no need to add a switching structure and a waterproof surface, and only the housing needs to be waterproofed and sealed to protect the active side and the passive side at the same time. The antenna device as a whole has fewer gaps that need to be sealed, which simplifies the sealing process and reduces the probability of sealing failure on the active antenna device. It also improves the overall structural strength and prolongs the service life of the antenna device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0019] Figure 1 is a schematic structural diagram of an active antenna device provided by an embodiment of the present disclosure;
[0020] Figure 2 is a schematic diagram of a connection relationship of some structures in the active antenna device provided by an embodiment of the present disclosure;
[0021] Figure 3 is a schematic diagram of another connection relationship of some structures in the active antenna device provided by an embodiment of the present disclosure;
[0022] Figure 4 is a schematic diagram of a partial structure of an active antenna device provided in an embodiment of the present disclosure;
[0023] Figure 5 It is a schematic diagram of a connection method between an active side and a passive side in an active antenna device in the related art.
[0024] Description of Reference Numerals
[0025] 10: Passive antenna components 20: Active RF circuit components
[0026] 30: RF connection components 31: Shielding components
[0027] 32: Connecting column 33: RF connector
[0028] 34: Antenna connector 35: Connector
[0029] 36: Elastic connector 40: Shielding cover
[0030] 41: Shielding cover 42: Shielding side plate
[0031] 43: Shielding rib 46: Shielding plate
[0032] 50: Shell 51: Upper shell
[0033] 52: Lower housing 60: Power supply
[0034] 70: Power shield shell 71: Power shield upper shell
[0035] 72: Power shield lower shell DETAILED DESCRIPTION
[0036] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0037] In the related art, the passive side of the active antenna device generally includes a passive antenna component and a radome, and the active side generally includes an active radio frequency circuit component and a power supply component for supplying power to the active radio frequency circuit component. When the active side and the passive side are integrated, a shielding plate is generally provided between the active side and the passive side to shield the radio frequency signal between the active side and the passive side, and the active side, the passive side and the shielding plate are connected together.
[0038] However, in an active antenna device, the size of the passive side (including the antenna cover) is usually larger than that of the active side. Therefore, in the related art, a middle frame adapter is often provided at the shielding plate. The size of the middle frame adapter is equivalent to that of the passive side. One side of the middle frame adapter is connected to the passive side, and the other side is connected to the active side to connect the passive side and the active side of different sizes together. Finally, a waterproof seal is made between the edge of the antenna cover and the middle frame adapter to prevent water vapor from entering the antenna cover and corroding the passive antenna component. Then, a waterproof seal is made between the base corresponding to the active side and the middle frame adapter to prevent water vapor from damaging the active RF circuit component or the power supply component.
[0039] However, the inventors of the present invention discovered in experiments that when the size of the active antenna device is large, the connecting components in the device, especially the middle frame adapter, are prone to deformation, and when the connecting components are deformed, water leakage often occurs in multiple sealing parts at the same time, resulting in a short service life of the active antenna device and high maintenance costs.
[0040] To solve the above technical problems, as one aspect of the present disclosure, an active antenna device is provided, such as Figure 1As shown, the active antenna device includes a passive antenna assembly 10, an active RF circuit assembly 20, an RF connection assembly 30 and a shielding cover 40. The active RF circuit assembly 20 is used to send a RF signal to the passive antenna assembly 10 through the RF connection assembly 30. The passive antenna assembly 10 is used to broadcast and send a wireless signal according to the RF signal. The active antenna device also includes a housing 50. The passive antenna assembly 10, the active RF circuit assembly 20, the RF connection assembly 30 and the shielding cover 40 are all arranged inside the housing 50. The shielding cover 40 is connected to the housing 50 and encloses a storage space with the inner wall of the housing 50. The active RF circuit assembly 20 is located in the storage space.
[0041] The shell 50 includes an upper shell 51 and a lower shell 52. The upper shell 51 is located on the side of the passive antenna assembly 10 away from the active RF circuit assembly 20, and the lower shell 52 is located on the side of the active RF circuit assembly 20 away from the passive antenna assembly 10. The upper shell 51 and the lower shell 52 are sealed and connected.
[0042] In the active antenna device provided by the present disclosure, the passive antenna assembly 10, the active RF circuit assembly 20, the RF connection assembly 30 and the shielding cover 40 are all arranged inside the housing 50. Even if the size of the passive side (including at least the passive antenna assembly 10) is larger than the size of the active side (including at least the active RF circuit assembly 20), there is no need to add a switching structure and a waterproof surface. It is only necessary to perform a waterproof sealing treatment between the upper housing 51 and the lower housing 52 of the housing 50 ( Figure 1 Area A in the middle is the waterproof sealing treatment area), which can protect the active side and the passive side from water vapor erosion at the same time, thereby reducing the number of gaps that need to be sealed on the active antenna device, simplifying the sealing process, and reducing the probability of sealing failure on the active antenna device.
[0043] Furthermore, in the active antenna device provided by the present invention, the assembly preload force required for each plate-like component is maintained only by the shell 50. Compared with the solution in the related art of connecting the active side and the passive side together using a middle frame adapter, the number of connecting gaps on the outer shell of the active antenna device is reduced, thereby reducing the probability of deformation, breakage and other problems of each component in the active antenna device under long-term use, improving the overall structural strength of the active antenna device, and extending the service life of the active antenna device.
[0044] In the present disclosure, the size of the passive antenna component is larger than the size of the active radio frequency circuit component.
[0045] In the present disclosure, there is no particular limitation on how to use the RF connection component 30 to electrically connect the active RF circuit component to the passive antenna component 10. In order to reduce the volume of the RF connection component 30 and simplify the device structure, preferably, as shown in FIG. Figures 1 to 4As shown, a connection hole is formed on the shielding cover 40, and the RF connection component 30 passes through the connection hole to electrically connect the active RF circuit component 20 with the passive antenna component 10. That is, one end of the RF connection component 30 is located in the accommodating space and is electrically connected to the active RF circuit component 20, and the other end of the RF component 30 passes through the connection hole formed on the shielding cover 40 and is electrically connected to the passive antenna component 10.
[0046] That is, in the embodiment of the present disclosure, the RF connection component 30 can directly pass through the connection hole on the shielding cover 40 to connect the active RF circuit board 20 and the passive antenna component 10 via the shortest path, thereby simplifying the structure of the active antenna device.
[0047] In order to improve the shielding effect of the shielding cover 40 on the radio frequency signal between the passive antenna component 10 and the active radio frequency circuit component 20, preferably, as Figure 1 , Figure 4 As shown, the shielding cover 40 includes a shielding cover plate 41 and a shielding side plate 42 . The shielding cover plate 41 and the shielding side plate 42 are connected to each other, and the connecting hole is formed on the shielding cover plate 41 .
[0048] The present disclosure does not specifically limit the shape and size of the upper shell 51 and the lower shell 52. For example, in order to reduce the volume of the device and improve the compactness of the device structure, preferably, Figure 1 As shown, at least a portion of the shape of the upper housing 51 matches the passive antenna assembly 10 (the upper housing 51 is also used as a radome), and at least a portion of the shape of the lower housing 52 matches the active RF circuit assembly 20 .
[0049] In order to further improve the structural strength and waterproof performance of the device as a whole, preferably, Figure 1 As shown, the sealed parts of the upper shell 51 and the lower shell 52 are located in the same plane. In the embodiment of the present disclosure, the lower shell 52 is extended toward one side of the upper shell 51, and is connected and sealed with the upper shell 51 on the same plane, so that the waterproof surface of the entire device is positioned on the same plane, improving the overall structural strength and waterproof performance of the entire device.
[0050] The disclosed embodiment does not specifically limit how the passive antenna assembly 10, the active RF circuit assembly 20, the shielding cover 40 and the housing 50 are fixedly connected. For example, they may be connected by blind plugging, or they may be fixedly connected by fasteners, snaps or other hard connection methods.
[0051] like Figure 5As shown, in the related art, in order to shield the radio frequency signal between the two circuit board assemblies while reducing the connection path of the radio frequency connection assembly connecting the two circuit board assemblies, the shielding plate 46 is formed with shielding ribs 43 in the direction toward the two circuit board assemblies, and a glue point (the material shown in the triangular pattern in the figure) is arranged between the shielding ribs 43 and the passive antenna assembly 10 and between the shielding ribs 43 and the active radio frequency circuit assembly 20 to shield the radio frequency connection assembly. At this time, the radio frequency connection assembly generally includes a connector 35 and elastic connectors 36 arranged at both ends of the connector 35. In this related technical solution, the shielding plate 46 has a complex structure and a large weight, and the passive antenna assembly 10 and the active radio frequency circuit assembly 20 are not only affected by the elastic force of the elastic connector 36, but also by the elastic force of the shielding ribs 43 and the glue point. The overall rebound force of the structure is relatively large, and there is a risk of not being pressed tightly.
[0052] In the embodiment of the present disclosure, in order to simplify the signal shielding structure of the connecting hole, preferably, as Figure 2 , Figure 3 As shown, the RF connection component 30 includes an RF connection body and a shielding member 31. The RF connection body is used to pass through the connection hole and electrically connect the active RF circuit component 20 with the passive antenna component 10. The shielding member 31 is arranged around the RF connection body and the shielding member 31 is electrically connected to the shielding cover 40 to close the gap between the connection hole and the RF connection body.
[0053] In the embodiment of the present disclosure, the RF connection component 30 includes a shielding member 31, and the shielding member 31 is electrically connected to the shielding cover 40, thereby forming a complete shielding surface with the shielding cover 40 and the lower shell 52, thereby improving the shielding effect of the shielding cover 40 on the RF signal between the active RF circuit component 20 and the passive antenna component 10. In addition, compared with the scheme of forming shielding by shielding ribs 43 and glue in the prior art, the overall structure of the device in the connection scheme of the RF connection component 30 provided in the embodiment of the present disclosure is simpler and the cost is lower, and the stress borne by each plate group is smaller, thereby improving the overall structural strength of the active antenna device.
[0054] The embodiment of the present disclosure does not specifically limit the number of RF connection components 30. For example, the number of RF connection components 30 in the active antenna device may be 8, 16, 32, 64, 128, and so on.
[0055] The present disclosure embodiment does not specifically limit the structure of the shielding member 31. For example, as a preferred embodiment of the present disclosure, Figure 2 , Figure 3As shown, the shielding member 31 is cylindrical in shape, and the area of the opening at one end of the shielding member 31 is larger than the area of the opening at the other end. The end of the shielding member 31 with a smaller opening area is arranged on the RF connection body and wraps the RF connection body, and the end of the shielding member 31 with a larger opening area is in contact with the shielding cover 40 and is electrically connected.
[0056] In the embodiment of the present disclosure, the end of the cylindrical shielding member 31 with a larger opening area is buckled on the shielding cover 40 and electrically connected to the shielding cover 40, thereby forming a complete signal shielding surface with the shielding cover 40, thereby effectively shielding the RF signal between the active RF circuit component 20 and the passive antenna component 10.
[0057] In order to improve the contact effect between the shielding member 31 and the shielding cover 40, preferably, the material of the shielding member 31 is a metal material. The thin sheet of metal material generally has a certain elastic force. When the shielding member 31 is subjected to force and buckled on the shielding cover 40, it can undergo a certain deformation, so that the shielding member 31 and the shielding cover 40 are in closer contact, thereby avoiding the use of processing methods such as dispensing and shielding ribs that damage the integrity of the shielding cover 40, reducing the stress concentration points on the shielding cover 40, and improving the strength of the shielding cover 40. Further preferably, the material of the shielding member 31 is spring steel.
[0058] To ensure that the shielding member 31 can close the gap between the connection hole and the RF connector and achieve a better shielding effect, preferably, Figure 2 and 3 As shown, a plurality of notches are formed at one end of the shielding member 31 connected to the shielding cover 40 . The plurality of notches surround the axis of the shielding member 31 , and the shielding member 31 is in an elastically deformed state. The portion of the shielding member 31 between two adjacent notches fits the shielding cover 40 .
[0059] In the embodiment of the present disclosure, the end of the shielding member 31 with a larger opening area is formed into a serrated shape. When the shielding member 31 is buckled on the shielding cover 40, the end is deformed so that each serration on the shielding member 31 is in full contact with the shielding cover 40 and completely closes the gap, thereby improving the shielding effect on the radio frequency signal.
[0060] In order to prevent the shielding member 31 from deforming too much and being unable to rebound, preferably, Figure 3 As shown, the shielding cover 40 is further formed with shielding ribs 43 on the side facing the shielding member 31, so that after the shielding member 31 is deformed to a certain extent, the shielding ribs 43 can replace the shielding member 31 to bear the excess pressure and maintain the distance between the shielding cover 40 and other plate groups.
[0061] The present disclosure does not specifically limit the structure of the radio frequency connection body. For example, Figure 2 , Figure 3As shown, the RF connection body may include a connecting column 32, an RF connector 33 and an antenna connector 34, the RF connector 33 is electrically connected to the active RF circuit component 20, the antenna connector 34 is electrically connected to the passive antenna component 10, and the connecting column 32 electrically connects the RF connector 33 and the antenna connector 34.
[0062] The present disclosure does not specifically limit on which side the shielding member 31 is located. When the shielding member 31 is located on the side of the shielding member 40 facing the active RF circuit component 20, preferably, as shown in FIG. Figure 3 As shown, a fixing flange is formed on the side of the RF connector 33 facing the passive antenna assembly 10, and the end of the shielding member 31 with a smaller opening area is fixed on the fixing flange. The distance between the fixing flange and the shielding cover 40 is less than the axial length of the shielding member 31 in an undeformed state.
[0063] In the embodiment of the present disclosure, the RF connector 33 is pressed against the end of the shielding member 31 with a smaller opening area, and the shielding member 31 is pressed against the shielding cover 40 when the active antenna device is installed. The gap at the end of the shielding member 31 with a larger opening area expands with the elastic deformation of the material, and the elastic force is used to maintain the integrity of the signal shielding surface.
[0064] The fixing flange can be provided to achieve blind insertion, that is, the portion of the shielding member 31 between two adjacent notches can be fitted with the shielding cover 40 without specially setting the length of the shielding cover 40 .
[0065] The present disclosure does not specifically limit how to supply power to the active RF circuit component 20. For example, to simplify the device structure, as another preferred embodiment of the present disclosure, the active antenna device also includes a power supply, and the power supply component is used to provide power to the active RF circuit component, and the power supply is arranged in the accommodation space. In the active antenna device provided by the present disclosure, the power supply can be blindly plugged into the active RF circuit component 20, and the shielding cover 40 simultaneously completes the RF signal shielding of the power supply and the active RF circuit component 20.
[0066] In order to improve the safety of the power supply, as another preferred embodiment of the present disclosure, as Figure 4 As shown, the active antenna device further includes a power supply component, the power supply component includes a power supply 60 and a power supply shielding shell 70, the power supply 60 is located in the power supply shielding shell 70, the power supply component is used to provide power to the active RF circuit component 20, and the power supply component is located in the housing 50 and outside the accommodation space. In the embodiment of the present disclosure, the power supply shielding shell 70 is directly used to independently perform signal shielding on the power supply 60, thereby improving the safety of the power supply 60.
[0067] The present disclosure does not specifically limit the structure of the power shielding shell 70. For example, as an easily implemented implementation, Figure 4 As shown, the power shield shell 70 includes a power shield upper shell 71 and a power shield lower shell 72 .
[0068] The embodiment of the present disclosure does not specifically limit the broadcast type of the passive antenna component 10. For example, the passive antenna component 10 may be a 5G antenna.
[0069] The embodiments of the present disclosure do not specifically limit the application of the active antenna device. For example, the active antenna device can be applied in a base station or a wireless communication system.
[0070] As a second aspect of the present disclosure, a base station is provided, wherein the base station includes the active antenna device described in the foregoing embodiment.
[0071] In the base station provided by the present disclosure, the active side and the passive side of the active antenna device are both arranged inside the shell 50. The active antenna device as a whole has fewer gaps that need to be sealed, which simplifies the sealing process, improves the overall structural strength of the device, and extends the service life of the device.
[0072] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.
Claims
1. An active antenna device, comprising a passive antenna component, an active radio frequency circuit component, a radio frequency connection component and a shielding cover, wherein the active radio frequency circuit component is used to send a radio frequency signal to the passive antenna component through the radio frequency connection component, and the passive antenna component is used to broadcast and send a wireless signal according to the radio frequency signal, characterized in that: The active antenna device further comprises a housing, wherein the passive antenna component, the active RF circuit component, the RF connection component and the shielding cover are all arranged inside the housing, the shielding cover is connected to the housing and forms a containing space with the inner wall of the housing, and the active RF circuit component is located in the containing space; The housing comprises an upper housing and a lower housing, wherein the upper housing is located on a side of the passive antenna assembly facing away from the active radio frequency circuit assembly, and the lower housing is located on a side of the active radio frequency circuit assembly facing away from the passive antenna assembly, and the upper housing is sealedly connected to the lower housing; One end of the RF connection component is located in the accommodating space and is connected to the active RF circuit component, and the other end of the RF connection component passes through a connection hole formed on the shielding cover and is connected to the passive antenna component; The RF connection assembly includes an RF connection body and a shielding member, wherein the RF connection body passes through the connection hole and electrically connects the active RF circuit assembly with the passive antenna assembly, and the shielding member is disposed around the RF connection body and connected to the shielding cover to close a gap between the connection hole and the RF connection body; The shielding member is cylindrical, and the area of the opening at one end of the shielding member is larger than the area of the opening at the other end. The end of the shielding member with a smaller opening area is arranged on the RF connection body and wraps the RF connection body. The end of the shielding member with a larger opening area contacts with the shielding cover and is electrically connected. The shielding member is elastic, and a plurality of notches are formed on one end of the shielding member connected to the shielding cover. The plurality of notches surround the axis of the shielding member, and the shielding member is in an elastically deformed state. The portion of the shielding member located between two adjacent notches fits with the shielding cover.
2. The active antenna device according to claim 1, characterized in that: The shielding cover comprises a shielding cover plate and a shielding side plate, the shielding cover plate and the shielding side plate are connected to each other, and the connecting hole is formed on the shielding cover plate.
3. The active antenna device according to claim 1, characterized in that: The RF connection body includes a connecting column, an RF connector and an antenna connector. The RF connector is electrically connected to the active RF circuit component, and the antenna connector is electrically connected to the passive antenna component. The connecting column electrically connects the RF connector to the antenna connector. A fixing flange is formed on the side of the RF connector facing the passive antenna component. The end of the shielding member with a smaller opening area is fixed on the fixing flange. The distance between the fixing flange and the shielding cover is less than the axial length of the shielding member in an undeformed state.
4. The active antenna device according to any one of claims 1 to 3, characterized in that: The active antenna device also includes a power supply component, which includes a power supply and a power supply shielding shell. The power supply is located in the power supply shielding shell. The power supply component is used to provide electrical energy to the active RF circuit component, and the power supply component is located inside the shell and outside the accommodating space.
5. The active antenna device according to any one of claims 1 to 3, characterized in that: The active antenna device also includes a power supply, which is used to provide electrical energy to the active radio frequency circuit component, and the power supply is arranged in the accommodating space.
6. A base station, characterized in that: The base station comprises the active antenna device according to any one of claims 1 to 5.
