CN202282872U - Active antenna system, base station and communication system - Google Patents

Abstract

The embodiment of the utility model discloses an active antenna system, a base station and a communication system, which enable an antenna and a radio remote unit to be integrated in one, simultaneously are convenient for rapid assembling and connection, and does not influence respective and independent authentication of the antenna and the radio remote unit. The active antenna system provided by the embodiment of the utility model comprises an antenna, a radio remote unit RRU and an internal connection unit, wherein the antenna and the radio remote unit are connected through the internal connection unit, the internal connection unit is used for realizing signal transmission between the antenna and the radio remote unit, the antenna and the radio remote unit are detachably connected, and the joint interface of the antenna and the radio remote unit are hermetically connected.

Description

An active antenna system, base station and communication system

technical field

The utility model relates to the technical field of antennas, in particular to an active antenna system, a base station and a communication system.

Background technique

With the development of wireless technology, the highly integrated design of antenna and remote radio unit (RRU, Radio Remote Unit) will become a new design trend in the future.

The active antenna system (AAS, Active Antenna System) in the prior art includes two units, the antenna part and the RRU part, which are independently designed, and the signal transmission is performed through the feeder connection between the two, as shown in Figure 1, the traditional Antennas and RRUs are arranged independently, and the two transmit signals through an external feeder. Apparently, the independent design scheme of antenna and RRU existing in the prior art cannot meet the requirements of the new design scheme of high integration of antenna and RRU. In addition, the certification test methods and related certification standards for antennas and RRUs in the prior art are still carried out separately for independent antennas and RRUs. Therefore, it is urgent to propose a design scheme that can make antennas and RRUs highly integrated to adapt to existing technologies. The source antenna system is developing in the direction of high power, miniaturization, high heat consumption, and low cost, while still being able to meet the separate certification test methods and related certification standards for antennas and RRUs.

Utility model content

The utility model provides an active antenna system, a base station and a communication system, which can integrate the antenna and the radio remote unit into one, and at the same time facilitate fast installation and connection without affecting the separate authentication of the antenna and the remote radio unit.

On the one hand, the utility model provides an active antenna system, including: an antenna, a remote radio unit RRU and an internal connection unit, wherein,

The antenna is connected to the inside of the remote radio unit through the internal connection unit, and the internal connection unit is used to realize signal transmission between the antenna and the remote radio unit;

The antenna is detachably connected to the remote radio unit;

The bonding interface between the antenna and the radio remote unit is in a sealed connection.

In an optional implementation manner, the radio remote unit includes: a radiator, a printed circuit board PCB, a shielding cover, and a filter;

The antenna includes: a feed network, a reflector, an antenna element, a radome and a transfer frame;

The filter is connected to one end of the internal connection unit, the feed network is connected to the other end of the internal connection unit, and the radome covers the feed network, the reflector and the The surfaces of the three antenna elements, the radiator and the radome are connected to the transfer enclosure, and the transfer enclosure is used to realize the connection between the antenna and the radio remote unit Detachable connection.

In another optional implementation manner, the radio remote unit includes: a radiator, a printed circuit board PCB, a shielding cover, and a filter;

The antenna includes: a feeding network, a reflector, an antenna element and a radome;

The filter is connected to one end of the internal connection unit, the feed network is connected to the other end of the internal connection unit, and the radome covers the feed network, the reflector, the The surfaces of the three antenna elements, the radome and the heat sink are detachably connected, so as to realize the detachable connection between the antenna and the radio remote unit.

Another aspect of the present invention provides a base station, including the above-mentioned active antenna system.

Another aspect of the present invention provides a communication system, including the above-mentioned base station.

As can be seen from the above technical solutions, the utility model embodiment has the following advantages:

In the embodiment of the utility model, the antenna of the active antenna system and the radio remote unit carry out signal transmission through the internal connection unit, realizing the integration of the antenna and the radio remote unit, and the antenna and the radio remote unit can be connected The disassembly connection is convenient for quick installation and connection, and can meet the separate certifications for antennas and radio remote units, and comply with their respective certification standards.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those skilled in the art can also obtain other drawings based on these drawings.

FIG. 1 is a schematic diagram of connection between an antenna and a remote radio unit in the prior art;

2 is a schematic cross-sectional view of an antenna and a remote radio unit in an active antenna system provided by an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of an antenna and a remote radio unit in another active antenna system provided by an embodiment of the present invention.

Detailed ways

The embodiment of the utility model provides an active antenna system, a base station, and a communication system, which can integrate the antenna and the RRU into one, and at the same time facilitate fast installation and connection without affecting the separate authentication of the antenna and the RRU.

In order to make the purpose, features and advantages of the utility model more obvious and understandable, the technical solutions in the utility model embodiment will be clearly and completely described below in conjunction with the accompanying drawings in the utility model embodiment, obviously , the embodiments described below are only some of the embodiments of the present utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art belong to the protection scope of the present utility model.

An active antenna system provided by an embodiment of the present invention may include: an antenna, a remote radio unit and an internal connection unit, wherein,

The antenna and the remote radio unit are connected through an internal connection unit, and the internal connection unit is used to realize signal transmission between the antenna and the remote radio unit;

The connection between the antenna and the remote radio unit is detachable;

The bonding interface between the antenna and the remote radio unit is a sealed connection.

In practical application, one possible way is that the joint interface between the antenna and the radio remote unit in the active antenna system provided by the embodiment of the present invention can be sealed and connected by at least one of adhesive tape and glue coating .

In practical applications, the internal connection unit can be at least one of connectors, cables, or jumpers. Of course, there are other devices that can be used as internal connection units in specific applications, as long as the antenna and remote radio unit can be realized. The signal transmission between them is enough. Among them, the internal connection unit can realize the detachment inside the active antenna system. For example, when the antenna and the radio remote unit need to be disassembled, the internal connection unit can be detached from the antenna and kept For the connection with the remote radio unit, the internal connection unit can also be disassembled from the remote radio unit while retaining the connection with the antenna. The internal connection unit can also be detached from the antenna and at the same time removed from the remote radio unit. The implementation method is determined by the specific scenario and is not limited here.

In practical applications, one possible way is that, as shown in Figure 2, the active antenna system is a cuboid, and the active antenna system is sectioned from top to bottom along the joint interface between the antenna and the remote radio unit As shown in Figure 2, it is assumed that the front is the antenna and the back is the remote radio unit. Turn the remote radio unit 180 degrees downward to obtain the cross-sectional view of the antenna and the remote radio unit as shown in Figure 2. The remote radio unit 201 may specifically include: a radiator 203, a printed circuit board 204 (PCB, Printed Circuit Board), a shielding cover 205, and a filter 206. The antenna 202 may specifically include: a feeding network 209 , a reflector 210 , an antenna element 211 , a radome 212 and a transfer enclosure 207 . in,

The filter 206 is connected to one end of the internal connection unit 208, the feed network 209 is connected to the other end of the internal connection unit 208, and the radome 212 covers the surfaces of the feed network 209, the reflection plate 210, and the antenna array 211. Both the radiator 203 and the radome 212 are connected to the transfer frame 207 , and the transfer frame 207 is used to realize the detachable connection between the antenna 202 and the remote radio unit 201 . Wherein, the shielding cover 205 and the filter 206 can be fixedly connected, the filter 206 can be fixed on the shielding cover 205, the antenna element 211 can be connected with the feeding network 209, the reflector 210, and the shielding cover 205 can be covered on the printed circuit board. On the board 204, it plays the role of shielding signals and protecting the printed circuit board 204. The radiator 203, the radome 212, and the transition frame 207 can jointly constitute the peripheral surface of the active antenna system provided in this embodiment, so that the active antenna system is an integrated structure of the antenna and the RRU.

It should be noted that two internal connection units are shown in FIG. 2 , which is just an example here. Of course, the number of internal connection units is determined by specific application scenarios, and will not be repeated here.

The transfer frame 207 in the embodiment of the utility model belongs to a part of the antenna 202, the transfer frame 207 is connected with the radome 212 in the antenna 202, and the transfer frame 207 is connected with the radiator in the radio frequency remote unit 201 203 are connected, the detachable connection of the antenna 202 and the remote radio unit 201 in the embodiment of the present invention is realized through the transfer frame 207, when the antenna 202 and the remote radio unit 201 need to be disassembled, the radiator 203 The antenna 202 can be separated from the remote radio unit 201 by detaching it from the transfer frame 207. When the antenna 202 and the remote radio unit 201 need to be combined, the radiator 203 is connected to the transfer frame 207 In this way, the antenna 202 and the remote radio unit 201 can be combined to realize integrated integration.

In practical applications, another achievable way is that, compared with the previous implementation way, there is no need to transfer the surrounding frame. As shown in Figure 3, the active antenna system is a cuboid, and the active antenna system along the Make a cross-sectional view from top to bottom according to the joint interface between the antenna and the remote radio unit. Assume that the front is the antenna and the remote radio unit is at the back. Turn the remote radio unit downward by 180 degrees to get the antenna shown in Figure 3 and a cross-sectional view of the remote radio unit, the remote radio unit 301 may specifically include: a radiator 303 , a printed circuit board 304 , a shielding cover 305 and a filter 306 . The antenna 302 may specifically include: a feeding network 309 , a reflector 310 , an antenna element 311 and a radome 312 . in,

The filter 306 is connected to one end of the internal connection unit 308, the feed network 309 is connected to the other end of the internal connection unit 308, and the radome 312 covers the surfaces of the feed network 309, the reflection plate 310 and the antenna element 311, The radome 312 is detachably connected to the radiator 303 to realize the detachable connection between the antenna 302 and the remote radio unit 301 .

Wherein, the shielding cover 305 and the filter 306 can be fixedly connected, the filter 306 is fixed on the shielding cover 305, the antenna element 311 can be connected with the feeding network 309, the reflector 310, and the shielding cover 305 can be covered on the printed circuit board 304, it plays the role of shielding signals and protecting the printed circuit board 304. It should be noted that in the embodiment of the present invention, the radome 312 is connected to the radiator 303 and can be disassembled. When the antenna 302 and the radio remote unit 301 need to be disassembled, the radiator 303 and the radome 312 are disassembled, that is, The antenna 302 can be separated from the radio remote unit 301. When the antenna 302 and the radio remote unit 301 need to be combined, the radiator 303 and the radome 312 can be connected together to connect the antenna 302 and the radio remote unit. 301 are combined together to realize integrated integration. That is to say, the radiator 303 and the radome 312 can jointly constitute the peripheral surface of the active antenna system provided in this embodiment, so that the active antenna system is an integrated structure of the antenna and the RRU.

It should be noted that two internal connection units are shown in FIG. 3 , which is just an example here. Of course, the number of internal connection units is determined by specific application scenarios, and will not be repeated here.

In the embodiment of the utility model, the antenna of the active antenna system and the radio remote unit carry out signal transmission through the internal connection unit, which realizes the integration of the antenna and the RRU, and the antenna and the radio remote unit are detachably connected. It is convenient for fast installation and connection, and can meet the separate certifications for antennas and RRUs, and comply with relevant certification standards.

The embodiment of the present invention also provides a base station, including any one of the above-mentioned active antenna systems. The active antenna system included in the base station may specifically include: the antenna is connected to the inside of the remote radio unit through an internal connection unit, The internal connection unit is used to realize signal transmission between the antenna and the remote radio unit; the antenna and the remote radio unit are detachably connected; the joint interface between the antenna and the remote radio unit is a sealed connection. In practical applications, the active antenna system included in the base station may be specifically shown in FIG. 2 and FIG. 3 , which will not be repeated here.

The embodiment of the present invention also provides a communication system, including the above-mentioned base station, and the base station includes any one of the above-mentioned active antenna systems, and the active antenna system included in the base station may specifically include: Connected through the internal connection unit, the internal connection unit is used to realize the signal transmission between the antenna and the remote radio unit; the antenna and the remote radio unit are detachably connected; the joint interface between the antenna and the remote radio unit is a sealed connection . In practical applications, the active antenna system included in the base station may be specifically shown in FIG. 2 and FIG. 3 , which will not be repeated here.

An active antenna system, a base station and a communication system provided by the utility model have been introduced in detail above. For those of ordinary skill in the art, according to the idea of the utility model embodiment, both the specific implementation method and the scope of application will understand There are changes, and in summary, the content of this specification should not be construed as limiting the utility model.

Claims (7)

1. An active antenna system, comprising: an antenna, a radio remote unit RRU and an internal connection unit, wherein,

the antenna is connected with the inside of the radio remote unit through the internal connection unit, and the internal connection unit is used for realizing signal transmission between the antenna and the radio remote unit;

the antenna is detachably connected with the remote radio unit;

the joint interface of the antenna and the radio remote unit is in sealing connection.

2. The active antenna system of claim 1,

the remote radio unit comprises: the device comprises a radiator, a Printed Circuit Board (PCB), a shielding cover and a filter;

the antenna includes: the antenna comprises a feed network, a reflecting plate, an antenna array, an antenna housing and a switching enclosure frame;

the wave filter with the one end of internal connection unit is connected, the feed network with the other end of internal connection unit is connected, the antenna house covers the feed network, the reflecting plate with the surface of antenna array three, the radiator with the antenna house is all connected on the frame is enclosed in the switching, the frame is enclosed in the switching is used for realizing the antenna with the dismantled connection between the unit of zooming out in the radio frequency.

3. The active antenna system of claim 1,

the remote radio unit comprises: the device comprises a radiator, a Printed Circuit Board (PCB), a shielding cover and a filter;

the antenna includes: the antenna comprises a feed network, a reflecting plate, an antenna array and an antenna housing;

the filter is connected with one end of the internal connection unit, the feed network is connected with the other end of the internal connection unit, and the antenna housing is detachably connected with the radiator to realize detachable connection between the antenna and the radio remote unit.

4. The active antenna system according to any one of claims 1 to 3, wherein the joint interface of the antenna and the RRU is hermetically connected by at least one of glue and glue.

5. Active antenna system according to any of claims 1 to 3, characterized in that the internal connection unit comprises: at least one of a connector, a cable, and a jumper.

6. A base station, characterized in that it comprises an active antenna system according to any one of claims 1 to 5.

7. A communication system comprising a base station according to claim 6.

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