CN201556711U - A Broadband Smart Antenna - Google Patents

Abstract

The utility model discloses a broadband intelligent antenna, which is used to solve the problems of difficult construction and inflexible networking when base stations support three frequency bands in the prior art. The broadband smart antenna includes an antenna oscillator and an A+B+C three-band combiner built in the broadband smart antenna. The three-band combiner is built in the smart antenna and connected to the antenna oscillator. The A+B+C The channel corresponding to at least one frequency band in the three-band combiner is connected to the corresponding blind-mating interface inside the antenna. Since the A+B+C three-band combiner is built into the broadband smart antenna in the utility model, the requirements for the waterproofness of the combiner and the connector are reduced, and because the blind-mating interface is built in the broadband smart antenna, The number of external cable connections and joints is saved to the greatest extent, and at the same time, because the combiner does not need to be built in the RRU, the volume and weight of the RRU are reduced, and product development is facilitated.

Description

A Broadband Smart Antenna

technical field

The utility model relates to the technical field of wireless communication, in particular to a broadband smart antenna.

Background technique

Time division duplex (TDD) system including Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) and TD-SCDMA Long Term Evolution (TD-LTE) Among them, its main working frequency bands include A frequency band (1880MHz～1920MHz), B frequency band (2010MHz～2025MHz) and C frequency band (2300MHz～2400MHz). When a base station needs to support A frequency band + B frequency band + C frequency band at the same time, it needs to Multiple radio remote units (RRU) in different frequency bands are combined, and the combined signal is sent to the antenna. At present, the scheme of combining the three frequency bands includes:

Solution 1: As shown in Figure 1, three different frequency band RRUs are combined and sent to the smart antenna through a three-band combiner. In Figure 1, A-band RRU51, B-band RRU52 and C-band RRU53 pass through nine The cables are connected to the 9-channel A, B, and C three-band combiner 54, and after the three frequency bands are combined by the combiner, they are connected to the broadband antenna 55 through 9 cables for transmission.

For this implementation, the number of cables required is relatively large, and since each cable needs connectors when connecting with RRU, combiner and antenna, the number of connectors is also relatively large, which causes the complexity of the connection, and at the same time, in order to meet the requirements of waterproof The need for security also puts forward higher requirements for external combiners and connectors, which in turn increases the difficulty of construction and maintenance.

Solution 2: The A+B+C three-band combiner is built into the integrated RRU of a certain frequency band. Figure 2 shows that the A+B+C three-band combiner is built into the A-band integrated RRU. The schematic diagram of the integrated RRU of the A frequency band being combined and connected to the smart antenna. In Fig. The BMA blind-mating interface is connected to the broadband antenna 55 .

Solution 3: First, build the two-band combiner into the integrated RRU of a certain frequency band, and then build the three-band combiner into the integrated RRU of a certain frequency band. Figure 3 shows the AB+C three-band combiner A schematic diagram of the integrated RRU built in the C-band for combining and connecting to the smart antenna. In Figure 3, the B-band RRU52 is connected to the A-band integrated RRU57 through 9 cables, and the A-band integrated RRU57 realizes The combined circuit of the AB frequency band, in this figure 3, also includes the integrated RRU58 built in the AB+C three-band combiner built in the C frequency band, and the integrated RRU57 of the A frequency band is connected to the integrated RRU58 of the C frequency band through 9 cables. The C-band integrated RRU 58 is connected to the broadband antenna 55 through a blind-mating interface.

In the above two implementation methods, since the three-band combiner is built into the RRU, the volume and weight of the RRU increase, thereby increasing the antenna radiation and the difficulty of construction. As a result, there are various forms of products, which affects the flexibility of networking and is not conducive to product development.

Utility model content

In view of this, the embodiment of the utility model provides a broadband smart antenna to solve the problems of difficult construction and inflexible networking when the base station supports three frequency bands in the prior art.

A broadband smart antenna provided by an embodiment of the utility model includes an antenna vibrator and an A+B+C three-band combiner built inside the broadband smart antenna:

The A+B+C three-band combiner is connected to the antenna element;

The channel of at least one frequency band in the A+B+C three-band combiner is connected to the corresponding blind-mating interface inside the antenna.

A broadband smart antenna provided by an embodiment of the utility model includes an antenna vibrator and a dual-band combiner built inside the broadband smart antenna:

The first frequency band in the dual-band combiner is the frequency band after combining any two frequency bands in A, B, and C, and the second frequency band is the frequency band that has not been combined;

The dual-band combiner is connected to the antenna element, wherein a channel of at least one of the first frequency band and the second frequency band is connected to a corresponding blind-mating interface inside the antenna.

The embodiment of the utility model provides a broadband smart antenna. The broadband smart antenna includes an antenna oscillator and an A+B+C three-band combiner built in the broadband smart antenna. The three-band combiner is built in the The inside of the smart antenna is connected to the antenna oscillator, and the channel corresponding to at least one frequency band in the A+B+C three-band combiner is connected to the corresponding blind-mating interface inside the antenna. Since the A+B+C three-band combiner is built into the broadband smart antenna in the utility model, the requirements on the waterproofness of the combiner and the joint are reduced, and since the blind-mating interface is built in the broadband smart antenna, It saves the number of external cable connections and joints to the greatest extent, and at the same time, because the combiner does not need to be built in the RRU, the volume and weight of the RRU are reduced, and product development is facilitated.

Description of drawings

FIG. 1 is a schematic diagram of combining and sending three RRUs of different frequency bands to a smart antenna through a three-band combiner in the prior art;

Fig. 2 is a schematic diagram of an A+B+C three-band combiner built into an A-band integrated RRU in the prior art for combining and connecting to a smart antenna;

FIG. 3 is a schematic diagram of an AB+C three-band combiner built in an integrated RRU of a C-band in the prior art for combining and connecting to a smart antenna;

Fig. 4 is a schematic structural diagram of a broadband smart antenna provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another broadband smart antenna provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a broadband smart antenna provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another broadband smart antenna provided by an embodiment of the present invention.

Detailed ways

The embodiment of the utility model provides a broadband smart antenna convenient for networking and application. The broadband smart antenna includes an antenna vibrator and an A+B+C three-band combiner built in the broadband smart antenna. The three-band The combiner is built into the smart antenna and connected to the antenna element, and the channel corresponding to at least one frequency band in the A+B+C three-band combiner is connected to the corresponding blind-mating interface inside the antenna. Since the A+B+C three-band combiner is built into the broadband smart antenna in the utility model, the requirements on the waterproofness of the combiner and the joint are reduced, and since the blind-mating interface is built in the broadband smart antenna, It saves the number of external cable connections and joints to the greatest extent, and at the same time, because the combiner does not need to be built in the RRU, the volume and weight of the RRU are reduced, and product development is facilitated.

The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Fig. 4 is a schematic structural diagram of a broadband smart antenna provided by an embodiment of the present invention. The broadband smart antenna includes an antenna vibrator 11, an A+B+C three-band combiner 12 built into the broadband smart antenna, and at least A blind-mating interface 13 .

The A+B+C three-band combiner 12 is connected to the antenna element 11, and at least one channel of the frequency band in the A+B+C three-band combiner 12 is connected to the corresponding blind insertion interface 13 .

In the above embodiment of the broadband smart antenna, when the broadband smart antenna includes a blind insertion interface 13, according to the frequency band channel corresponding to the blind insertion interface 13, the RRU corresponding to the frequency band is connected to the A through the blind insertion interface 13 +B+C three-band combiner 12, and realize the input of the frequency band signal to the A+B+C three-band combiner 12. For channels of other frequency bands that are not connected to the blind-mating interface 13 in the broadband smart antenna, the channel can be connected to the corresponding N-type connector 15 in the utility model, and the RRU corresponding to the frequency band is connected to the N-type connector 15 through a cable , inputting the frequency band signal into the A+B+C three-band combiner 12 .

In the utility model embodiment, since the A+B+C three-band combiner is built in the broadband smart antenna, the channel of each frequency band is connected to one end of the blind plug interface or one end of the N-type connector inside the antenna, and the blind plug The other end of the plug interface is directly connected to the RRU of the corresponding frequency band, and the other end of the N-type connector is connected to the RRU of the corresponding frequency band through a cable. When the base station temporarily does not connect the RRU of a certain frequency band to the broadband smart antenna, the corresponding interface or connector connected to the channel of the frequency band in the broadband smart antenna can be connected to a matching load, thereby increasing the flexibility of the broadband smart antenna connection .

In order to prevent mutual interference of signals between frequency bands, in the A+B+C three-band combiner built into the broadband smart antenna in the utility model, the isolation between the input ports corresponding to the channels of each frequency band needs to be greater than 30dB, and the insertion loss between the input port corresponding to the channel of each frequency band and the combined output port of the combiner is less than 1dB. For each frequency band in the A+B+C three-band combiner, the input port in the combiner refers to the port where the signal of each frequency band enters the combiner, and the channel of each frequency band refers to the port of the combiner Inside the device, when the signal of the corresponding frequency band is input into the channel of the combiner through the input port, the combiner will combine the signals of the three frequency bands after each channel, and the combined signal The channel is sent to the output port of the combiner, and the output port is connected to the antenna dipole in the broadband smart antenna, so as to realize the sending of the combined signal.

Fig. 5 is a schematic structural diagram of another broadband smart antenna provided by the embodiment of the present invention. The broadband smart antenna includes: an antenna oscillator 11, a dual-frequency combiner 14 built in the broadband smart antenna, and at least one blind-mating interface 13 .

The dual-frequency combiner 14 is connected to the antenna vibrator 11, and the first frequency band in the dual-frequency combiner 14 is the frequency band after combining any two frequency bands in A, B, and C, and the second frequency band is the frequency band that has not been combined. The channel of at least one of the first frequency band and the second frequency band in the broadband smart antenna is connected to the corresponding blind insertion interface 13. The channel of the frequency band not connected to the blind-mating interface 13 of the dual-band combiner 14 is connected to the N-type interface 15 .

For example, the first frequency band of the dual-frequency combiner can be the frequency band AB after combining the two frequency bands A and B, and the AB+C dual-frequency combiner composed of the second frequency band C, the first frequency band can be two frequency bands B and C The A+BC dual-frequency combiner composed of the frequency band BC after combining the first frequency band and the second frequency band A. When the dual-frequency combiner is an AB+C dual-frequency combiner, when a blind insertion interface is included in the broadband smart antenna, and one end of the blind insertion interface is connected to the C-band channel in the dual-frequency combiner Connection, the other end of the blind-mating interface is connected to the C-band RRU, the channel of the AB frequency band in the broadband smart antenna is connected to one end of the N-type interface, and the other end of the N-type interface is connected to the integrated RRU of the AB dual-band combiner.

Also in the above-mentioned embodiment, in order to prevent the mutual interference of signals between the frequency bands, in the dual-band combiner 14 built into the broadband smart antenna in the utility model, the isolation between the input ports corresponding to the channels of each frequency band The accuracy needs to be greater than 30dB, and the insertion loss between the input port corresponding to the channel of each frequency band and the combined output port of the combiner is less than 1dB.

The broadband smart antenna provided by the embodiment of the utility model has a built-in A+B+C three-band combiner or a dual-band combiner that realizes the combination of A, B, and C three-bands, so it is waterproof to the combiner. Requirements are drastically reduced, resulting in cost savings and a lower level of danger at the point of failure. The broadband smart antenna includes at least one blind-mating interface, and in the combiner that realizes the combination of A, B, and C bands, at least one channel of the frequency band is connected to the corresponding blind-mating interface, thereby saving the number of external cables And the number of joints, thus reducing the workload. And because the combiner that realizes the combination of A, B, and C bands is built into the broadband smart antenna, it is convenient for networking, network optimization and planning.

Figure 6 is a schematic diagram of a specific structure of a broadband smart antenna provided by an embodiment of the present invention. The broadband smart antenna includes an antenna oscillator 11 and an A+B+C three-band combiner 12 built into the broadband smart antenna. , and a blind-mate interface 13 .

In the above broadband smart antenna, the A+B+C three-band combiner 12 is connected to the antenna element 11 . The A-band channel in the A+B+C three-band combiner 12 is connected to one end of the blind-mating interface 13 , and the A-band integrated RRU 21 is connected to the other end of the blind-mating interface 13 . The channel of the B frequency band and the channel of the C frequency band in the A+B+C three-band combiner 12 are respectively connected to the N-type interface 15, wherein the channel of the B frequency band is connected to one end of the N-type interface 151, and the channel of the C-frequency band is connected to the N-type interface 152 The other end of the N-type interface 151 is connected to the B-band RRU22 through a cable, and the other end of the N-type interface 152 is connected to the C-band RRU23 through a cable.

Of course, in the above-mentioned embodiment, the broadband smart antenna may also include two blind sockets 13, such as the two blind sockets, the two blind sockets are respectively the first blind socket and the second blind socket . One end of the first blind connection socket is connected to the channel of the B frequency band in the A+B+C three-band combiner, and one end of the second blind connection socket is connected to the channel of the C frequency band in the A+B+C three-band combiner , the other end of the first blind socket is connected to the B-band integrated RRU, the other end of the second blind socket is connected to the C-band integrated RRU, and the channel of the A-band in the A+B+C three-band combiner is connected One end of the N-type connector, and the other end of the N-type connector is connected to the A-band RRU through a cable. The broadband smart antenna may also include three blind connection sockets, the connection process of which is the same as that of the above-mentioned embodiment, and will not be repeated here.

FIG. 7 is a schematic structural diagram of another broadband smart antenna provided by the embodiment of the present invention. The broadband smart antenna includes an antenna oscillator 11 and an AB+C dual-band combiner 14 built into the broadband smart antenna. and a blind-mating interface 13.

In the broadband smart antenna above, the AB+C dual-band combiner 14 is connected to the antenna element 11 . The channel of the AB frequency band in the AB+C dual-band combiner 14 is connected to one end of the blind-mating interface 13 , and the integrated RRU 24 of the A+B frequency band is connected to the other end of the blind-mating interface 13 . The C-band channel in the AB+C dual-band combiner 14 is connected to one end of the N-type interface 15, and the other end of the N-type interface 15 is connected to the C-band RRU 23 through a cable.

Of course, in the above-mentioned embodiment, the broadband smart antenna may also include two blind sockets 13, such as the two blind sockets, the two blind sockets are respectively the first blind socket and the second blind socket . One end of the first blind connection socket is connected to the channel of the AB frequency band in the AB+C dual-band combiner, and one end of the second blind connection socket is connected to the channel of the C frequency band in the AB+C dual-band combiner. The other end of the socket is connected to the A+B frequency band integrated RRU, and the other end of the second blind connection socket is connected to the C frequency band integrated RRU.

Among them, the A+B frequency band integrated RRU is the B frequency band RRU connected to the A+B frequency band combiner through 9 cables and built into the A frequency band integrated RRU24. The integrated RRU24 realizes the combination of the AB frequency band.

The above description is based on the AB+C dual-band combiner built into the broadband smart antenna after combining the AB bands. Of course, the A+BC dual-band combiner is built into the broadband smart antenna, and at least one blind-mating interface is used to form The broadband smart antenna is also possible, and its specific implementation method is the same as that described above, so it will not be repeated here.

In the embodiment of the utility model, the blind socket and the N-type plug included in the broadband smart antenna can be located on the back or bottom of the broadband smart antenna, so as to facilitate connection without affecting other connections of the broadband smart antenna.

The embodiment of the utility model provides a broadband smart antenna. The broadband smart antenna includes an antenna oscillator and an A+B+C three-band combiner built in the broadband smart antenna. The three-band combiner is built in the The inside of the smart antenna is connected to the antenna oscillator, and the channel corresponding to at least one frequency band in the A+B+C three-band combiner is connected to the corresponding blind-mating interface inside the antenna. Since the A+B+C three-band combiner is built into the broadband smart antenna in the utility model, the requirements on the waterproofness of the combiner and the joint are reduced, and since the blind-mating interface is built in the broadband smart antenna, It saves the number of external cable connections and joints to the greatest extent, and at the same time, because the combiner does not need to be built in the RRU, the volume and weight of the RRU are reduced, and product development is facilitated.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (8)

1. a wideband smart antenna comprises antenna oscillator (11), it is characterized in that, also comprises the A+B+C three frequency range mixers (12) that are built in described wideband smart antenna inside, and at least one blind interface (13):

Described A+B+C three frequency range mixers are connected with described antenna oscillator;

The passage of at least one frequency range connects with corresponding blind interface in the described A+B+C three frequency range mixers.

2. wideband smart antenna as claimed in claim 1 is characterized in that, does not connect the passage of blind interface in the described A+B+C three frequency range mixers, connects corresponding N connector (15).

3. wideband smart antenna as claimed in claim 1 is characterized in that, in the passage corresponding input end mouth of described A+B+C three frequency range mixers and each frequency range, the isolation between per two input ports is greater than 30dB.

4. wideband smart antenna as claimed in claim 1 is characterized in that, in the described A+B+C three frequency range mixers and each frequency range corresponding input end mouth and close the road after output port between Insertion Loss less than 1dB.

5. wideband smart antenna, described wideband smart antenna comprises antenna oscillator, it is characterized in that, also comprises the two-band mixer that is built in described wideband smart antenna inside:

First frequency range is that any two frequency ranges are closed frequency range behind the road among A, B, the C in the described two-band mixer, and second frequency range is for closing the frequency range on road;

Described two-band mixer is connected with antenna oscillator, and the passage of at least one frequency range is connected with corresponding blind interface in wherein said first frequency range and second frequency range.

6. wideband smart antenna as claimed in claim 5 is characterized in that, does not connect the passage of blind interface in the described two-band mixer, connects corresponding N connector.

7. wideband smart antenna as claimed in claim 5 is characterized in that, in the passage corresponding input end mouth of described two-band mixer and each frequency range, the isolation between per two input ports is greater than 30dB.

8. wideband smart antenna as claimed in claim 5 is characterized in that, in the described two-band mixer and each frequency range corresponding input end mouth and close the road after output port between Insertion Loss less than 1dB.

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