CN210350104U - Massive MIMO electrically tunable antenna - Google Patents
Massive MIMO electrically tunable antenna Download PDFInfo
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- CN210350104U CN210350104U CN201921411471.6U CN201921411471U CN210350104U CN 210350104 U CN210350104 U CN 210350104U CN 201921411471 U CN201921411471 U CN 201921411471U CN 210350104 U CN210350104 U CN 210350104U
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Abstract
A Massive MIMO electric tilt antenna comprises a physical phase shift part and a digital phase shift part, wherein the physical phase shift part comprises a radiation unit module, a power distribution network module, a phase shifter module, a connection structure module, a driving device and an RET control part which are sequentially connected from top to bottom; the plurality of radiation units in the single group are connected with a group of power dividing networks in parallel and correspondingly, the single group of power dividing networks are connected to a phase shifter, the phase shifter is respectively and correspondingly connected with a connecting structure, the connecting structures are connected to a driving device together, the driving device is electrically connected with the RET control part, and the connecting structures are respectively connected with the driving device and the phase shifter and drive the phase shifter to move. The utility model discloses avoid increasing antenna port quantity, realize covering its beam scanning function more extensively.
Description
Technical Field
The utility model relates to a 5G antenna technical field, in particular to antenna is transferred to Massive MIMO electricity.
Background
At present, a Massive MIMO antenna is an important component of 5G mobile communication network arrangement, and can perform more accurate beam forming and space division multiplexing by using a large-scale array antenna, so that the network capacity and the spectrum efficiency are improved. The Massive MIMO antenna system can scan beams in the horizontal direction and the vertical direction and adjust the beam direction to enhance the area coverage, the Massive MIMO antenna mainly comprises three forms of 16TR, 32TR and 64TR at present, and the volume, the power consumption and the cost of the Massive MIMO antenna are increased gradually due to the increase of the number of ports.
The traditional Massive MIMO antenna mainly realizes its beam scanning function (as shown in fig. 10) by digital phase shift of the background master device, and it is inevitable to increase the number of ports of the antenna to achieve wider coverage in such a scanning manner, and thus, it is inevitable to increase the antenna cost, and how to effectively control the antenna cost becomes a primary problem.
SUMMERY OF THE UTILITY MODEL
In view of this, for solving above-mentioned prior art not enough, the utility model aims at providing a Massive MIMO electricity accent antenna avoids increasing the port quantity of antenna, realizes covering its beam scanning function more extensively, can effectively reduce antenna cost, impels 5G with higher speed and builds a station and lay the net.
In order to achieve the above object, the utility model adopts the following technical scheme:
a Massive MIMO electric regulation antenna comprises a physical phase shifting part and a digital phase shifting part, wherein the physical phase shifting part comprises a radiation unit module, a power distribution network module, a phase shifter module, a connection structure module, a driving device and an RET control part which are sequentially connected from top to bottom, the radiation unit module comprises a plurality of groups of radiation units which are arranged in parallel, the power distribution network module comprises a plurality of groups of power distribution networks which are arranged in parallel, the phase shifter module comprises a plurality of phase shifters which are arranged in parallel, and the connection structure module comprises a plurality of connection structures which are arranged in parallel;
the plurality of radiation units in the single group are connected with a group of power dividing networks in parallel and correspondingly, the single group of power dividing networks are connected to a phase shifter, the phase shifters are respectively and correspondingly connected with the connecting structures, the connecting structures are connected to the driving device together, the driving device is electrically connected with the RET control part, and the connecting structures are respectively connected with the driving device and the phase shifter and drive the phase shifter to move.
Furthermore, the RET control part comprises a signal interface, a communication circuit and a main control unit, wherein the antenna main equipment issues an AISG protocol command and transfers the AISG protocol command to the main control unit through the signal interface and the communication circuit, the main control unit analyzes the command, performs signal processing on the command, then executes the command and transmits an execution result to the driving device, and the driving device drives the phase shifter to move relatively and changes the phase of the radiation unit through the connecting structure.
Further, the signal interface is OOK/485.
Further, the power division network includes an implementation manner of one-to-two, one-to-three, and one-to-four.
Furthermore, the power distribution network is formed by copper-clad PCB or plastic electroplating.
Furthermore, the radiation unit mainly has several existence forms of die-casting, panel beating, PCB and plastic electroplating, the radiation unit has multiple combination and array mode.
Further, the connecting structure is a structural member formed of metal or plastic or rigid material.
Further, the driving device is composed of a motor, a main gear, an auxiliary gear, a screw rod, a nut and a base, wherein the base fixedly connects the motor, the main gear, the auxiliary gear, the screw rod and the nut, the motor is connected with the main gear and drives the main gear to rotate as a driving force, the auxiliary gear is meshed with the main gear and is driven to rotate, the screw rod is fixedly connected with the auxiliary gear and is driven to rotate, the nut is meshed with the screw rod, and the rotation of the motor is converted into the translation of the nut.
Further, a calibration network is arranged between the physical phase shifting part and the digital phase shifting part.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an antenna is transferred to Massive MIMO electricity avoids increasing the port quantity of antenna, realizes covering its beam scanning function more widely, can effectively reduce the antenna cost, impels 5G with higher speed and builds a station and net. The concrete points are as follows:
the utility model discloses increased the physics in traditional Massive MIMO antenna and moved the phase, realized the physics through the combination mode that radiating element, phase shifter, connection structure, drive arrangement, RET control part connect gradually and moved the phase, realized the function of more port number antennas like this under the circumstances that does not increase the antenna port number, effectively reduced Massive MIMO antenna cost; the utility model integrates the physical phase-shifting, namely the electric tuning, into the Massive MIMO antenna, and combines the backstage digital phase-shifting to realize the wider range under the condition of the same port number, thereby meeting the requirements of building a station and arranging a network to a certain extent;
the antenna main equipment issues an AISG protocol instruction and transmits the AISG protocol instruction to the main control unit through a signal interface and a communication circuit of the RET control part, the main control unit analyzes the instruction and executes the instruction after signal processing, and transmits an execution result to the driving device, and the driving device drives the phase shifter to move relatively and changes the phase of the radiation unit through the connecting structure, so that the function of physically shifting the phase of the antenna is realized;
the phase shifter changes the phase value of the array radiation unit in the network to realize beam scanning; the position of the phase shifter is changed in the feed network, so that the phase of the radiation unit is changed, and beam scanning or dip angle adjustment is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the operation of the RET control portion;
FIG. 3 is a schematic structural diagram of a driving device;
fig. 4 is a schematic structural diagram of changing the position of a phase shifter in a feed network to change the phase of a radiating element in the embodiment;
FIG. 5 is a schematic diagram of a metal-coupled implementation of a phase shifter;
FIG. 6 is a schematic diagram of a dielectric phase shifting implementation of a phase shifter;
FIG. 7 is a schematic diagram of a PCB coupling implementation of a phase shifter;
FIG. 8 is a schematic diagram showing a configuration in which a calibration network is provided between a physical phase shift section and a digital phase shift section in the embodiment;
FIG. 9 is a schematic diagram showing a configuration in which no calibration network is provided between the physical phase shift section and the digital phase shift section in the embodiment;
fig. 10 is a schematic structural diagram of a conventional Massive MIMO antenna;
the labels in the figure are: 1. physical phase shifting part, 2, digital phase shifting part, 3, radiation unit module, 4, power division network module, 5, phase shifter module, 6, connection structure module, 7, driving device, 8, RET control part, 801, signal interface, 802, main control unit, 9, radiation unit, 10, power division network, 11, phase shifter, 12, connection structure, 13, motor, 14, main gear, 15, pinion, 16, screw, 17, nut, 18, base.
Detailed Description
The following provides specific embodiments, which will further clearly, completely and specifically explain the technical solutions of the present invention. The present embodiment is the best embodiment based on the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, a Massive MIMO electrically tunable antenna includes a physical phase shifting portion 1 and a digital phase shifting portion 2, where the physical phase shifting portion 1 includes a radiation unit module 3, a power distribution network module 4, a phase shifter module 5, a connection structure module 6, a driving device 7, and an RET control portion 8, which are sequentially connected from top to bottom, the radiation unit module 3 includes multiple groups of radiation units 9 arranged in parallel, the power distribution network module 4 includes multiple groups of power distribution networks 10 arranged in parallel, the phase shifter module 5 includes multiple phase shifters 11 arranged in parallel, and the connection structure module 6 includes multiple connection structures 12 arranged in parallel;
a plurality of radiation units 9 in a single group are connected with a group of power dividing networks 10 in parallel and correspondingly, the single group of power dividing networks 10 are connected to a phase shifter 11, the phase shifters 11 are respectively and correspondingly connected with the connecting structures 12, the connecting structures 12 are connected to the driving device 7 together, the driving device 7 is electrically connected with the RET control part 8, and the connecting structures 12 are respectively connected with the driving device 7 and the phase shifter 11 and drive the phase shifter 11 to move. In the utility model, the phase shifter 11 changes the phase value of the array radiation unit 9 in the network, realizing the beam scanning; the position of the phase shifter 11 is changed in the feed network to change the phase of the radiating element 9, thereby realizing beam scanning or tilt adjustment.
Further, the power distribution network 10 includes an implementation manner of dividing into two, dividing into three, and dividing into four. In this embodiment, the power dividing network 10 is implemented by dividing the power into three parts, and is used in cooperation with the radiation unit 9 and the phase shifter 11. In this embodiment, a plurality of radiation units 9 in a single group are connected in parallel and correspondingly to a group of power dividing networks 10, the single group of power dividing networks 10 are connected to a phase shifter 11, the phase shifters 11 are respectively and correspondingly connected to the connecting structures 12, the connecting structures 12 are connected to the driving device 7 together, the driving device 7 is electrically connected to the RET control part 8, and the connecting structures 12 are respectively connected to the driving device 7 and the phase shifter 11 and drive the phase shifter 11 to move; that is, the whole antenna master device sends an instruction to the RET control section 8, and the RET control section 8 feeds back the execution result to the antenna master device after final signal processing.
Further, in this embodiment, in the feed network, the radiation unit 9 is connected to the power dividing network 10, the power dividing network 10 is a one-to-three power dividing network, the power dividing network 10 is connected to the phase shifter 11, the phase shifter 11 is connected to the connection structure 12, the connection structure 12 is connected to one driving device 7, and the driving device 7 is electrically connected to the RET control portion 8, so that the antenna main device is connected to the RET control portion 8 and transmits instructions in two directions. And then the driving device 7 drives the phase shifter 11 to move relatively through the connecting structure 12 and changes the phase of the radiation unit 9, thereby realizing the functions of physical phase shifting and beam scanning of the antenna.
Further, the RET control part 8 includes a signal interface 801, a communication circuit, and a main control unit 802, as shown in fig. 2, the antenna master device issues an AISG protocol instruction, and the AISG protocol instruction is transferred to the main control unit 802 through the signal interface 801 and the communication circuit, the main control unit 802 analyzes the instruction, performs the instruction and transmits the execution result to the driving device 7, and the driving device 7 drives the phase shifter 11 to move relatively and changes the phase of the radiation unit 9 through the connection structure 12, thereby implementing the function of physically shifting the phase of the antenna.
Further, the signal interface 801 is OOK/485.
Further, as shown in fig. 3, the driving device 7 is composed of a motor 13, a main gear 14, a sub-gear 15, a screw 16, a nut 17, and a base 18, the base 18 fixedly connects the motor 13, the main gear 14, the sub-gear 15, the screw 16, and the nut 17, the motor 13 is connected to the main gear 14 and drives the main gear 14 to rotate as a driving force, the sub-gear 15 is engaged with the main gear 14 and is driven to rotate, the screw 16 is fixedly connected with the sub-gear 15 and is driven to rotate, and the nut 17 is engaged with the screw 16, so that the rotation of the motor 13 is converted into a translation of the nut 17. The motor 13 mainly plays a driving role and is not limited to specific specifications and number, the main gear 14 and the secondary gear 15 mainly play a ratio changing function and are not limited to the number, size and matching mode, and the screw 16 and the nut 17 mainly play a role in converting rotation into translation and are not limited to specific number and structural mode. In this embodiment, parameters such as specific specifications, types, and numbers of the motor 13, the main gear 14, the sub-gear 15, the screw 16, and the nut 17 are selected according to actual conditions.
Further, the power distribution network 10 is formed by copper-clad PCB or plastic electroplating.
Furthermore, the radiation unit 9 mainly has several existing forms of die casting, sheet metal, PCB and plastic electroplating, and the radiation unit 9 has various combinations and array modes.
Further, the connecting structure 12 is a structural member formed of metal or plastic or rigid material. The specific design and shape of the connecting structure 12 can be designed according to the actual situation.
However, in the prior art, as shown in fig. 10, a schematic diagram of a conventional Massive MIMO antenna implementing its beam scanning function by digital phase shifting is shown; the traditional Massive MIMO antenna mainly realizes the beam scanning function through digital phase shift of a background main device, and the scanning mode of realizing wider coverage cannot avoid increasing the number of ports of the antenna, so that the cost of the antenna cannot be avoided, and how to effectively control the cost of the antenna becomes a primary problem.
Further, as shown in fig. 8, a calibration network is disposed between the physical phase shift part 1 and the digital phase shift part 2. As an optimized scheme, the present embodiment can be divided into two practical application forms with a calibration network and without a calibration network, and can be selected according to practical situations. As shown in fig. 8 and 9. Therefore, compare with the prior art that above-mentioned figure 10 shows, the utility model discloses an antenna is transferred to Massive MIMO electricity compares traditional Massive MIMO antenna and says, avoids increasing the port quantity of antenna, realizes more covering its beam scanning function, can effectively reduce antenna cost, impels 5G with higher speed and builds a station and net.
In this embodiment, the phase shifter 11 changes the phase value of the array radiation unit 9 in the network to realize beam scanning; as shown in fig. 4 below, the beam scanning or tilt adjustment is achieved by changing the positions of the 3 phase shifters 11 in the feed network to change the phase of the radiating elements 9. The implementation of the 3 phase shifters 11 can be metal coupling, dielectric phase shifting, PCB coupling or other ways, but the principle is to change their relative positions to realize their functions. Fig. 5 is a schematic diagram of a metal-coupled implementation of the phase shifter 11; FIG. 6 is a schematic diagram of a dielectric phase shift implementation of the phase shifter 11; fig. 7 is a schematic diagram of a PCB coupling implementation of the phase shifter 11.
To sum up, in the utility model, wherein the antenna master device issues the AISG protocol command to be transferred to the main control unit through the signal interface and the communication circuit of the RET control part, the main control unit analyzes the command and executes the command after signal processing and transmits the execution result to the driving device, and the driving device drives the phase shifter to move relatively and change the phase of the radiation unit through the connection structure, thereby realizing the function of physically shifting the phase of the antenna; in addition, the phase shifter changes the phase value of the array radiation unit in the network to realize beam scanning; the position of the phase shifter is changed in the feed network, so that the phase of the radiation unit is changed, and beam scanning or dip angle adjustment is realized.
The utility model discloses an antenna is transferred to Massive MIMO electricity, only lean on the digit to shift the phase with traditional Massive MIMO antenna and compare, the utility model discloses avoided increasing the port quantity of antenna, realized more covering its beam scanning function, can effectively reduce the antenna cost, impel 5G with higher speed and build the station and lay the net. The utility model discloses increased the physics in traditional Massive MIMO antenna and moved the phase, realized the physics through the combination mode that radiating element, phase shifter, connection structure, drive arrangement, RET control part connect gradually and moved the phase, realized the function of more port number antennas like this under the circumstances that does not increase the antenna port number, effectively reduced Massive MIMO antenna cost; the utility model discloses shift the looks electricity promptly with physics and adjust integratedly in Massive MIMO antenna mutually, combine backstage digit to shift to satisfy the needs of establishing a station and laying out a net to a certain extent under the circumstances that realizes the same port number.
The essential features, the basic principle and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that the present invention can be modified in various ways according to the actual situation without departing from the spirit and scope of the present invention, and these modifications and improvements are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an antenna is transferred to Massive MIMO electricity which characterized in that: the phase shifter comprises a physical phase shifting part (1) and a digital phase shifting part (2), wherein the physical phase shifting part (1) comprises a radiation unit module (3), a power distribution network module (4), a phase shifter module (5), a connection structure module (6), a driving device (7) and an RET control part (8) which are sequentially connected from top to bottom, the radiation unit module (3) comprises a plurality of groups of radiation units (9) which are arranged in parallel, the power distribution network module (4) comprises a plurality of groups of power distribution networks (10) which are arranged in parallel, the phase shifter module (5) comprises a plurality of phase shifters (11) which are arranged in parallel, and the connection structure module (6) comprises a plurality of connection structures (12) which are arranged in parallel;
a plurality of radiation units (9) in a single group are connected with a group of power dividing networks (10) in parallel and correspondingly, the single group of power dividing networks (10) is connected to a phase shifter (11), the phase shifters (11) are respectively and correspondingly connected with the connecting structures (12), the connecting structures (12) are connected to the driving device (7) together, the driving device (7) is electrically connected with the RET control part (8), and the connecting structures (12) are respectively connected with the driving device (7) and the phase shifter (11) and drive the phase shifter (11) to move.
2. The Massive MIMO electrical tilt antenna according to claim 1, wherein: the RET control part (8) comprises a signal interface (801), a communication circuit and a main control unit (802), antenna master equipment issues an AISG protocol instruction and transmits the AISG protocol instruction to the main control unit (802) through the signal interface (801) and the communication circuit, the main control unit (802) analyzes the instruction, performs signal processing on the instruction and then executes the instruction and transmits an execution result to the driving device (7), and the driving device (7) drives the phase shifter (11) to move relatively through a connecting structure (12) and changes the phase of the radiation unit (9).
3. The Massive MIMO electrical tilt antenna according to claim 2, wherein: the signal interface (801) is OOK/485.
4. The Massive MIMO electrical tilt antenna according to claim 1, wherein: the power distribution network (10) comprises an implementation mode of one-to-two, one-to-three and one-to-four.
5. The Massive MIMO electrical tilt antenna according to claim 4, wherein: the power distribution network (10) is formed by copper-clad PCB or plastic electroplating.
6. The Massive MIMO electrical tilt antenna according to claim 1, wherein: the radiation unit (9) mainly has several existence forms of die-casting, panel beating, PCB and plastic electroplating, the radiation unit (9) has multiple combination and array mode.
7. The Massive MIMO electrical tilt antenna according to claim 1, wherein: the connecting structure (12) is a structural member formed of metal or plastic or a rigid material.
8. The Massive MIMO electrical tilt antenna according to claim 1, wherein: the driving device (7) is composed of a motor (13), a main gear (14), an auxiliary gear (15), a screw rod (16), a nut (17) and a base (18), the base (18) fixedly connects the motor (13), the main gear (14), the auxiliary gear (15), the screw rod (16) and the nut (17), the motor (13) is connected with the main gear (14) and used as driving force to drive the main gear (14) to rotate, the auxiliary gear (15) is meshed with the main gear (14) and driven to rotate, the screw rod (16) is fixedly connected with the auxiliary gear (15) and driven to rotate, the nut (17) is meshed with the screw rod (16), and the rotation of the motor (13) is converted into the translation of the nut (17).
9. The Massive MIMO electrical tilt antenna according to claim 1, wherein: a calibration network is arranged between the physical phase shifting part (1) and the digital phase shifting part (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921411471.6U CN210350104U (en) | 2019-08-28 | 2019-08-28 | Massive MIMO electrically tunable antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921411471.6U CN210350104U (en) | 2019-08-28 | 2019-08-28 | Massive MIMO electrically tunable antenna |
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| CN210350104U true CN210350104U (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534903A (en) * | 2019-08-28 | 2019-12-03 | 广东通宇通讯股份有限公司 | A kind of Massive MIMO electrical tilt antenna |
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2019
- 2019-08-28 CN CN201921411471.6U patent/CN210350104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534903A (en) * | 2019-08-28 | 2019-12-03 | 广东通宇通讯股份有限公司 | A kind of Massive MIMO electrical tilt antenna |
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