Multi-band active antenna

Embodiments of the present invention provide a multi-band active antenna, including a broadband antenna, a combiner, and an active module, where a concave window is disposed on an enclosure frame of the broadband antenna, and a first port of the broadband antenna is disposed in the window; the combiner is removably connected to the window, and a first port of the combiner is connected to the first port of the broadband antenna; and a mounting kit is disposed on the enclosure frame of the broadband antenna, and the active module is removably connected to the mounting kit and a first port of the active module is connected to a second port of the combiner by a conducting wire.

TECHNICAL FIELD

The present invention relates to the field of mobile communications, and in particular, to a multi-band active antenna.

BACKGROUND

With the development of mobile communications, there are more application scenarios where multiple frequencies coexist in a base station subsystem. As frequency bands are increasing, the quantity of radio frequency modules and the quantity of antennas at a site are also gradually increased. As a result, the site becomes more crowded, and site deployment and installation become more difficult. Currently, equipment vendors and operators mainly use a scheme that combines a broadband antenna, an external combiner, and an external active module, where the combiner is connected to the external active module by a conducting wire to implement the sharing of an antenna system by multiple frequency bands. In this scheme, unit parts that form a whole antenna are dispersed, and site installation requires large space, making it difficult to perform site installation.

SUMMARY

In view of this, embodiments of the present invention provide a multi-band active antenna, which can reduce site installation space and facilitate site installation.

A first aspect provides a multi-band active antenna, including a broadband antenna, a combiner, and an active module, where a concave window is disposed on an enclosure frame of the broadband antenna, and a first port of the broadband antenna is disposed in the window; the combiner is removably connected to the window, and a first port of the combiner is connected to the first port of the broadband antenna; and a mounting kit is disposed on the enclosure frame of the broadband antenna, the active module is removably connected to the mounting kit and a first port of the active module is connected to a second port of the combiner by a conducting wire.

In a first possible implementation manner of the first aspect, an antenna port of the broadband antenna is also disposed on an external surface of the broadband antenna; the first port of the active module is connected to the antenna port by a conducting wire; and an intermediate port connected to the antenna port is also disposed in the window, where the intermediate port is connected to the second port of the combiner.

In a second possible implementation manner of the first aspect, the active module includes a first active module and a second active module, where the first active module is removably connected to a first mounting kit disposed on the enclosure frame of the broadband antenna, the second active module is removably connected to a second mounting kit disposed on the enclosure frame of the broadband antenna, and a first port of the first active module is connected to the second port of the combiner by a conducting wire; and a first port of the second active module is connected to an antenna port disposed on an external surface of the broadband antenna by a conducting wire, where the antenna port is connected to an intermediate port disposed in the window by a conducting wire, where the intermediate port is connected to a third port of the combiner.

In the foregoing technical solution, because a combiner is removably connected to a window of a broadband antenna and an active module is removably connected to a mounting kit of the broadband antenna, components of a whole multi-band active antenna is integrated into one, thereby reducing occupied site installation space and facilitating site installation.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

FIG. 1is a schematic structural diagram of a multi-band active antenna according to an embodiment of the present invention. As shown inFIG. 1, the multi-band active antenna includes a broadband antenna11, a combiner12, and an active module13, where a concave window16is disposed on an enclosure frame of the broadband antenna11, and a first port17of the broadband antenna11is disposed in the window; the combiner12is removably connected to the window16, and a first port18of the combiner11is connected to the first port17of the broadband antenna11; and a mounting kit19is disposed on the enclosure frame of the broadband antenna11, the active module13is removably connected to the mounting kit19and a first port131of the active module13is connected to a second port121of the combiner12by a conducting wire.

It should be noted that the foregoing ports, for example, the first port17of the broadband antenna11, the first port18of the combiner11, the first port of the active module132, and the second port121of the combiner11are bidirectional ports, which means that these ports can be configured to transmit signals and can also be configured to receive signals.

As an optional implementation manner, the active module13may be a single active module or multiple active modules. When the active module13is multiple active modules, for downlink signals, the active modules13amplify signals of multiple frequency bands and then transmit the amplified signals of the multiple frequency bands to the combiner12, and the combiner12synthesizes the signals of the multiple bands and transmits the synthesized signal to the broadband antenna11; for uplink signals, the broadband antenna11receives signals of the multiple frequency bands from user sides and transmits the signals of the multiple frequency bands to the combiner12, and the combiner12splits the signals and transmits the split signals to the active modules13. In this way, the sharing of an antenna system by multiple frequency bands is implemented.

Optionally, in this embodiment of the present invention, the combiner12is removably connected to the window16disposed on the broadband antenna11, and the active module13is removably connected to the mounting kit19of the broadband antenna11. In this way, components of a whole multi-band active antenna is integrated, that is, integrated into the broadband antenna11, so that the size of the multiband active antenna is very small, and the quantity of boxes at a site (for example, base stations) is also very small, thereby reducing occupied site installation space and facilitating site installation.

Optionally, because the combiner12and the active module13are both removably connected to the broadband antenna11, frequency band evolution of the antenna can be supported. Therefore, when the broadband antenna11undergoes frequency band evolution, for example, when the broadband antenna11evolves from a single-band active antenna to a dual-band active antenna, only the combiner12needs to be replaced, for example, a direct-through-connected combiner12is changed to a 2-in-1 combiner12, and meanwhile one active module13needs to be added on the basis of the original active module13installed on the enclosure frame of the broadband antenna11. In this way, a single-band active antenna can be evolved into a dual-band active antenna. The 2-in-1 combiner12updated from the direct-through-connected combiner12may be the same as the direct-through-connected combiner12in appearance. Similarly, a dual-band active antenna can be evolved into a three-band active antenna, and a three-band active antenna can be evolved into a multi-band active antenna.

Optionally, multiple mounting kits are pre-disposed on the enclosure frame of the broadband antenna11. In this way, an active module13can be added.

Optionally, because the combiner12is removably connected to the window16of the broadband antenna11and the active module13is removably connected to the mounting kit of the broadband antenna11, the combiner12and the active module13can be maintained independently, that is, the combiner12or the active module13can be independently removed for maintenance, which can reduce maintenance costs in a process of maintaining a site.

As an optional implementation manner, an antenna port211of the broadband antenna11is also disposed on an external surface of the broadband antenna11; the first port131of the active module13is connected to the antenna port211by a conducting wire; and an intermediate port15connected to the antenna port is also disposed in the window, where the intermediate port is connected to the second port121of the combiner12.

Optionally, an antenna port211may be disposed at a bottom or upper end of the broadband antenna11.

In this implementation manner, the first port131of the active module13is connected to the second port121of the combiner by the antenna port of the broadband antenna11.

In the foregoing technical solution, because a combiner is removably connected to a window of a broadband antenna, and an active module is removably connected to a mounting kit of the broadband antenna, components of a whole multi-band active antenna is integrated into the broadband antenna, which can reduce occupied site installation space and facilitate site installation.

FIG. 2is a schematic structural diagram of another multi-band active antenna according to an embodiment of the present invention. As shown inFIG. 2, the multi-band active antenna includes a broadband antenna21, a combiner22, a first active module23, and a second active module24, where a concave window16is disposed on an enclosure frame of the broadband antenna21, and an input port of the broadband antenna21is disposed in the window; the combiner22is removably connected to the window, and a first port18of the combiner22is connected to a first port17of the broadband antenna21; a first mounting kit191and a second mounting kit192are disposed on the enclosure frame of the broadband antenna21, an antenna port211is disposed on an external surface of the broadband antenna21, and an intermediate port15is disposed in the window16of the broadband antenna21; the first active module23is removably connected to the first mounting kit191, and the second active module24is removably connected to the second mounting kit192; and a first port231of the first active module23is connected to a second port221of the combiner22, and a first port240of the second active module24is connected to the antenna port211by a conducting wire, where the antenna port211is connected to the intermediate port15by a conducting wire, where the intermediate port15is connected to a third port181of the combiner22.

Optionally, the first active module23, the second active module24, and the combiner22are all installed on the broadband antenna21. In this way, a conducting wire connecting the first active module23and the combiner22is very short and a conducting wire connecting the second active module24and the antenna port211is also very short, thereby reducing power consumption caused by the conducting wires.

Optionally, the first mounting kit191and the second mounting kit192may be disposed on a rear side of the enclosure frame of the broadband antenna21, where the rear side of the enclosure frame refers to a side on which the window16is disposed; and the second port221is disposed on a front side of the combiner22, where the front side of the combiner22refers to a side of the combiner22located at an opening of the window16when the combiner22is connected to the window. In this way, the first port231of the first active module23connected to the first mounting kit191is easily connected to the second port221of the combiner22. The antenna port211may be disposed on the rear side (for example, at the bottom of the rear side) of the broadband antenna. In this way, the first port240of the second active module24connected to the second mounting kit can be easily connected to the antenna port211, where the antenna port211may be connected to the intermediate port15by a conducting wire inside the broadband antenna21. The third port181and the first port18of the combiner22may be disposed on the rear side of the combiner22, where the rear side of the combiner22is a side opposite to the front side of the combiner22. The first port17of the broadband antenna21may be disposed in a position that is inside the window16and matches the first port of the combiner22, that is, when the combiner22is connected to the window16, the input port14of the broadband antenna21is located in a position connected to the first port18of the combiner22. In this way, when the combiner22is connected to the window16, the first port18of the combiner22is connected to the first port17of the broadband antenna21. The intermediate port15of the broadband antenna21may be disposed in a position that is inside the window and matches the third port181of the combiner22, that is, when the combiner22is connected to the window16, the intermediate port15of the broadband antenna21is located in a position connected to the third port181of the combiner22. In this way, when the combiner22is connected to the window16, the third port181of the combiner22is connected to the intermediate port15of the broadband antenna21.

As an optional implementation manner, the first active module23may be multiple active modules, the first mounting kit191may be multiple mounting kits, and the second port221of the combiner22may be multiple ports; the second active module24may be multiple active modules, the second mounting kit192may be multiple mounting kits, the antenna port211may be multiple groups of antenna ports, the intermediate port15may be multiple intermediate ports, and the third port181of the combiner22may be multiple ports. The foregoing “first” and “second” may be understood as a first type and a second type. For example, the first active module23may be understood as a first type of active module, and the second active module24may be a second type of active module. Similarly, the second port221may be a first type of port, and the third port181may be a second type of port.

Optionally, when the first active module23and the second active module24are both one active module, the sharing of an antenna system by dual frequency bands is implemented.

For the convenience of description, in this embodiment of the present invention, multiple active modules included in the first active module23and multiple active modules included in the second active module24are defined as active sub-modules, multiple input ports included in the second port221and third port181are defined as sub-ports, and multiple mounting kits included in the first mounting kit191and second mounting kit192may be defined as sub-mounting kits.

Optionally, the second active module24includes at least one active sub-module; the second mounting kit192disposed on the enclosure frame of the broadband antenna21includes at least one sub-mounting kit; the antenna port211disposed on the external surface of the broadband antenna21includes at least one group of antenna ports; the intermediate port15disposed in the window includes at least one intermediate port; and the third port181of the combiner22includes at least one input sub-port1811.

Optionally, the at least one active sub-module is installed on the at least one sub-mounting kit in a one-to-one manner; a first port of the at least one active sub-module is connected to the at least one group of antenna ports in a one-to-one manner by a conducting wire; the at least one group of antenna ports is connected to the at least one intermediate port in a one-to-one manner by a conducting wire; and the at least one intermediate port is connected to the at least one input sub-port in a one-to-one manner.

As an optional implementation manner, as shown inFIG. 3, the second active module24may include: a first active sub-module241and a second active sub-module242, where: the first active sub-module241is removably connected to a first sub-mounting kit193of the second mounting kit192disposed on the enclosure frame of the broadband antenna21; a first port2411of the first active sub-module241is connected to a first group of antenna ports2111disposed on the external surface of the broadband antenna21by a conducting wire, where the first group of antenna ports2111is connected to a first intermediate port151disposed in the window16by a conducting wire, where the first intermediate port151is connected to a first sub-port182of the third port181of the combiner22; and the second active sub-module242is removably connected to a second sub-mounting kit194of the second mounting kit192disposed on the enclosure frame of the broadband antenna21; a first port2421of the second active sub-module242is connected to a second group of antenna ports2112disposed on the external surface of the broadband antenna21by a conducting wire, where the second group of antenna ports2112is connected to a second intermediate port152disposed in the window by a conducting wire, where the second intermediate port152is connected to a second sub-port183of the third port181of the combiner22.

Optionally, as shown inFIG. 3, the window16may be disposed in an intermediate position of the rear side of the enclosure frame of the broadband antenna21; and the first mounting kit191may be disposed in a lower position of the upper half part of the rear side of the enclosure frame. In this way, the first port231of the first active module23connected to the first mounting kit is easily connected to the second port221of the combiner22. The first sub-mounting kit193may be disposed in the lower half part of the rear side of the enclosure frame, and the first group of antenna ports2111may be disposed at the bottom of the rear side of the enclosure frame. In this way, the first port2411of the first active sub-module241connected to the first sub-mounting kit193is easily connected to the first group of antenna ports2111. The second sub-mounting kit194may be disposed in an upper position of the upper half part of the rear side of the enclosure frame, and the second group of antenna ports2112may be disposed at the upper end of the rear side of the enclosure frame. In this way, the first port2421of the second active sub-module242connected to the second sub-mounting kit194is easily connected to the second group of antenna ports2112.

In this implementation manner, the sharing of an antenna system by three frequency bands is implemented.

As an optional implementation manner, as shown inFIG. 4, the multi-band active module may further include: a third active module25, where: the third active module25is connected to a fourth port222of the combiner22by a conducting wire.

Optionally, this implementation manner can apply to a scenario where the enclosure frame of the broadband antenna has insufficient space to install multiple active modules, so that an active module can be disposed externally, for example, the third active module25. When a site is deployed and installed, the third active module25may be fastened to a structure used to install a multi-band active antenna.

Optionally, like the first active module23and the second active module24, there may be multiple third active modules25.

Optionally, as shown inFIG. 4, the window16may be disposed in an intermediate position of the rear side of the enclosure frame of the broadband antenna21; the first mounting kit191may be disposed in the upper half part of the rear side of the enclosure frame; and the second port221of the combiner22may be disposed in the upper half part of a front side of the combiner22. In this way, the first port231of the first active module23connected to the first mounting kit is easily connected to the second port221of the combiner22, The second mounting kit192may be disposed in the lower half part of the rear side of the enclosure frame, and the antenna port211may be disposed at the bottom of the rear side of the enclosure frame. In this way, the first port240of the second active module24connected to the second mounting kit is easily connected to the antenna port211. The fourth port222of the combiner22may be disposed in the lower half part of the front side of the combiner22. In this way, the first port251of the third active module25can be easily connected to the fourth port222of the combiner22.

In this implementation manner, the sharing of an antenna system by three frequency bands is implemented.

As an optional implementation manner, the broadband antenna21may include any one of the following: a dual-array high-frequency antenna, a single-array high-frequency antenna, a single-array low-frequency antenna, and a multi-array antenna.

Optionally, the foregoing ports include the first port18and the second port221of the combiner22and the antenna port211and the intermediate port15of the broadband antenna21. The interface quantities of these ports are the same as the interface quantity of the first port17of the broadband antenna. The broadband antennas21illustrated inFIG. 2,FIG. 3, andFIG. 4are all dual-array high-frequency antennas. In this way, the interface quantities of these ports are all 4.

When the broadband antenna21is a single-array high-frequency antenna, the interface quantity of the first port of the single-array high-frequency antenna is 2. As shown inFIG. 5, the interface quantities of these ports are 2. The interface quantity of the second port221of the combiner22is 2, the interface quantity of the antenna port211of the broadband antenna21is 2, the interface quantity of the first port2312of the first active module23is 2, and the interface quantity of the first port240of the second active module24is 2. Assuredly, the interface quantities of the intermediate port15, the third port181of the combiner22, and the first port18of the combiner22are all 2. Similarly, the interface quantities of these ports can be obtained when the broadband antenna21is a single-array low-frequency antenna or a multi-array antenna, which is not further detailed herein.

As an optional implementation manner, the first port18of the combiner22is connected to the input port of the broadband antenna21in blind-mate connection mode.

Optionally, when the broadband antenna21is a dual-array high-frequency antenna, both the first port18of the combiner22and the first port17of the broadband antenna21have four interfaces; and positions where the first port18of the combiner22and the first port17of the broadband antenna21are disposed have already been described above, that is, the first port18of the combiner22may be disposed on the rear side of the combiner22, and the first port17of the broadband antenna21may be disposed in a position that is inside the window16and matches the first port of the combiner22, while the first port of the combiner22is connected to the first port of the broadband antenna21in blind-mate connection mode. In this way, so long as the combiner22is inserted into the window, the first port of the combiner22is connected to the first port of the broadband antenna21.

As an optional implementation manner, the first port18of the combiner22is connected to the first port17of the broadband antenna21by a cable; or the first port18of the combiner22is connected to the first port17of the broadband antenna21by a conducting wire.

As an optional implementation manner, the intermediate port15of the broadband antenna21is connected to the third port181of the combiner22in blind-mate connection mode.

Optionally, when the broadband antenna21is a dual-array high-frequency antenna, both the third port181of the combiner22and the input port14of the broadband antenna21have four interfaces; and positions where the third port181of the combiner22and the intermediate port15of the broadband antenna21are disposed have already been described above, that is, the third port181of the combiner22may be disposed on the rear side of the combiner22, and the intermediate port15of the broadband antenna21may be disposed in a position that is inside the window16and matches the third port of the combiner22, while the intermediate port15of the broadband antenna21is connected to the third port181of the combiner22in blind-mate connection mode. In this way, so long as the combiner22is inserted into the window, the third port of the combiner22is connected to the intermediate port of the broadband antenna21.

As an optional implementation manner, the intermediate port15of the broadband antenna21is connected to the third port181of the combiner22by a cable.

It should be noted that all the ports described in the embodiments of the present invention are bidirectional ports, that is, these ports may be configured to receive data and may also be configured to transmit data.

In the foregoing technical solution, multiple implementation manners of the multi-band active antenna have been detailed above on the basis of the foregoing embodiments, which can reduce occupied site installation space and facilitate site installation.

The foregoing descriptions are merely exemplary embodiments of the present invention, but are not intended to limit the present invention. Any equivalent modifications made in accordance with the claims of the present invention shall still fall in the scope of the present invention.