CN117353026A - Phase shifter driving mechanism, electrically tunable antenna, system and phase modulation method - Google Patents
Phase shifter driving mechanism, electrically tunable antenna, system and phase modulation method Download PDFInfo
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- CN117353026A CN117353026A CN202210751685.8A CN202210751685A CN117353026A CN 117353026 A CN117353026 A CN 117353026A CN 202210751685 A CN202210751685 A CN 202210751685A CN 117353026 A CN117353026 A CN 117353026A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 119
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- 238000003860 storage Methods 0.000 description 7
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- 230000008859 change Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present disclosure provides a phase shifter driving mechanism, wherein the phase shifter driving mechanism includes an executing member, a power shaft and a transmission assembly, the executing member is matched with the transmission assembly, the power shaft is matched with the transmission assembly, and the transmission assembly is used for converting the rotary motion of the power shaft into the linear motion of the executing member; under the condition that the power shaft rotates clockwise, after the transmission assembly moves the executing piece to a first limit position along a first direction, the transmission assembly stops converting the rotary motion of the power shaft into the linear motion of the executing piece; under the condition that the power shaft rotates anticlockwise, after the actuating member moves to a second limit position along a second direction, the transmission assembly stops converting the rotary motion of the power shaft into the linear motion of the actuating member, and the first direction is opposite to the second direction. The disclosure also provides an electrically tunable antenna, an electrically tunable antenna system, and a phase modulation method.
Description
Technical Field
The present disclosure relates to the field of communication devices, and in particular, to a phase shifter driving mechanism, an electrically tunable antenna system, and a phase modulation method for a phase shifter.
Background
The signal coverage area in mobile communication is achieved by installing a base station antenna at a base station and covering this area with a beam of the base station antenna. When the geographic characteristics and user distribution of the area change, the beam radiation direction of the base station antenna needs to be adjusted to enable the signal to cover the changed area again.
In order to adjust the beam radiation direction of the base station antenna, the phase shifter inside the base station antenna can be adjusted to change the signal phase of each unit inside the antenna, so as to change the direction of the beam. That is, the radiating angle of the mobile communication antenna can be adjusted by driving the phase shifter in the antenna through the transmission device, so that the adjustment of the signal phase is realized, and the base station electrically-tunable antenna system plays a significant role in the mobile communication network. Correspondingly, the phase shifter is used as a key element for realizing the electric tuning function of the antenna, and is an important research object of the electric tuning antenna.
Currently, 5G technology is rapidly evolving. The 5G antenna has the characteristics of small volume, compact space, thin thickness and the like. Meanwhile, along with continuous updating of requirements, functions are continuously improved, and the traditional antenna electric tuning functions are zero position identification through a corresponding motor driving device locked-rotor mode. However, the torque of the motor reaches a peak value during locked rotation, the mechanical performance requirements on the structure and the motor gearbox are high, and meanwhile, in order to avoid rigid impact during locked rotation, the requirements on a control strategy are high, the control program is complex, and the phase shifting efficiency is low.
Disclosure of Invention
The present disclosure aims to provide a phase shifter driving mechanism, an electrically tunable antenna system, and a phase modulation method of a phase shifter.
The present disclosure provides a phase shifter driving mechanism, wherein the phase shifter driving mechanism includes an executing member, a power shaft and a transmission assembly, the executing member is matched with the transmission assembly, the power shaft is matched with the transmission assembly, and the transmission assembly is used for converting the rotary motion of the power shaft into the linear motion of the executing member;
under the condition that the power shaft rotates clockwise, after the transmission assembly moves the executing piece to a first limit position along a first direction, the transmission assembly stops converting the rotary motion of the power shaft into the linear motion of the executing piece;
under the condition that the power shaft rotates anticlockwise, after the actuating member moves to a second limit position along a second direction, the transmission assembly stops converting the rotary motion of the power shaft into the linear motion of the actuating member, and the first direction is opposite to the second direction.
Optionally, the transmission assembly includes a first unidirectional transmission assembly and a second unidirectional transmission assembly;
the first unidirectional transmission assembly is used for converting the clockwise rotation motion of the power shaft into the linear motion of the executing piece along the first direction;
the second unidirectional transmission assembly is used for converting the anticlockwise rotation motion of the power shaft into the linear motion of the executing piece along the second direction.
Optionally, the actuator includes a mounting body and a meshing tooth formed on a meshing surface of the mounting body;
the first unidirectional transmission assembly comprises a first unidirectional bearing, a first main transmission gear and a first auxiliary transmission gear, wherein the inner ring of the first unidirectional bearing is sleeved on the power shaft, the first main transmission gear is sleeved on the outer ring of the first unidirectional bearing, the first auxiliary transmission gear is meshed with the first main transmission gear, the first auxiliary transmission gear is meshed with the meshing teeth of the executing piece, the inner ring and the outer ring of the first unidirectional bearing are relatively static under the condition that the power shaft rotates clockwise, the outer ring of the first unidirectional bearing rotates clockwise along with the power shaft, the inner ring of the first unidirectional bearing rotates anticlockwise along with the power shaft under the condition that the power shaft rotates anticlockwise, relative rotation exists between the outer ring of the first unidirectional bearing and the outer ring of the first unidirectional bearing, and the first auxiliary transmission gear is separated from the meshing teeth at the first limiting position;
the second unidirectional transmission assembly comprises a second unidirectional bearing, a second main transmission gear and a second auxiliary transmission gear, wherein the inner ring of the second unidirectional bearing is sleeved on the power shaft, the second main transmission gear is sleeved on the outer ring of the second unidirectional bearing, the second auxiliary transmission gear is meshed with the second main transmission gear, the second auxiliary transmission gear is meshed with the meshing teeth of the executing piece, under the condition that the power shaft rotates clockwise, the inner ring and the outer ring of the second unidirectional bearing rotate relatively, and the inner ring of the second unidirectional bearing rotates clockwise along with the power shaft, under the condition that the power shaft rotates anticlockwise, the inner ring of the second unidirectional bearing rotates anticlockwise along with the power shaft, the outer ring of the second unidirectional bearing and the outer ring of the second unidirectional bearing are relatively static, and under the second limit position, the second driven gear is separated from the meshing teeth.
Optionally, the number of teeth of the first slave transmission gear is the same as the number of teeth of the second slave transmission gear;
the number of teeth of the first main transmission gear is the same as the number of teeth of the second main transmission gear.
Optionally, the phase shifter driving mechanism further comprises a chassis, and the transmission assembly is arranged in the chassis.
Optionally, the phase shifter driving mechanism further comprises a driving motor, and an output shaft of the driving motor is connected with the power shaft.
As a second aspect of the present disclosure, there is provided an electrically tunable antenna comprising at least one phase shifter and at least one phase shifter driving mechanism, wherein the phase shifter driving mechanism is provided in the first aspect of the present disclosure, each phase shifter driving mechanism corresponds to a respective phase shifter, and the actuator is connected to an adjusting member of the respective phase shifter.
Optionally, the electrically tunable antenna includes two phase shifters and two phase shifter driving mechanisms.
As a third aspect of the present disclosure, there is provided a phase modulation method of a phase shifter, wherein the phase modulation method includes:
determining the time of unidirectional rotation of a driving motor, wherein an output shaft of the driving motor is connected with a power shaft of the phase shifter driving mechanism according to the first aspect of the disclosure;
and determining the position of the phase shifter as a zero position under the condition that the time of unidirectional rotation of the driving motor is longer than the time required by unidirectional full stroke of the executing piece under the driving of the driving motor.
As a fourth aspect of the present disclosure, there is provided an electrically tunable antenna system, wherein the electrically tunable antenna system includes an electrically tunable antenna provided in the second aspect of the present disclosure, a phase shifter driving mechanism provided in the first aspect of the present disclosure, a memory, and a controller, and the memory stores an executable program, and when the controller invokes the executable program, the phase modulation method provided in the third aspect of the present disclosure can be implemented.
In the phase shifter driving mechanism provided by the disclosure, the output shaft of the driving motor rotates clockwise to drive the power shaft to rotate, and after the actuating member is moved to the first limit position by the transmission assembly under the drive of the power shaft, even if the output shaft of the driving motor drives the power shaft to continue to rotate, the transmission assembly does not convert the rotary motion of the power shaft into the linear motion of the actuating member.
If the controller determines that the clockwise rotation time of the driving motor exceeds the time required by the unidirectional full stroke of the actuator under the driving of the driving motor, the controller indicates that the actuator has zeroed the phase shifter.
The output shaft of the driving motor rotates anticlockwise to drive the power shaft to rotate, and after the actuating member is moved to the second limit position by the transmission assembly under the drive of the power shaft, the transmission assembly does not convert the rotary motion of the power shaft into the linear motion of the actuating member even if the output shaft of the driving motor drives the power shaft to continue to rotate.
If the controller determines that the counterclockwise rotation time of the driving motor exceeds the time required by the unidirectional full stroke of the actuator under the driving of the driving motor, the controller indicates that the actuator has zeroed the phase shifter.
In the present disclosure, the driving motor can control the actuator to idle after the phase shifter is adjusted to zero position through the transmission assembly, that is, the phase shifter can be adjusted to zero without the occurrence of locked rotation of the driving motor, so that the requirements on the mechanical properties of each component of the driving mechanism of the phase shifter are reduced, and the damage to the driving motor is also reduced.
Drawings
FIG. 1 is an exploded view of one embodiment of a phase shifter drive mechanism provided by the present disclosure;
FIG. 2 is a schematic structural view of the transmission assembly, wherein the second one-way bearing is not shown;
FIG. 3 is an exploded view of one embodiment of a phaser drive mechanism provided by the present disclosure, wherein a first one-way bearing and a second one-way bearing are shown;
FIG. 4 is an end view of the shifter drive mechanism provided by the present disclosure, wherein the actuator is in a first limit position;
FIG. 5 is an end view of the shifter drive mechanism provided by the present disclosure, wherein the actuator is at a second limit;
fig. 6 is a schematic diagram of an electrically tunable antenna provided by the present disclosure, wherein the radiating elements are not shown;
fig. 7 is a flow chart of a phase modulation method provided by the present disclosure.
Detailed Description
In order to better understand the technical solutions of the present disclosure, the following describes in detail a phase shifter driving mechanism, an electrically tunable antenna system, and a phase modulation method of a phase shifter provided by the present disclosure with reference to the accompanying drawings.
Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Embodiments of the disclosure and features of embodiments may be combined with each other without conflict.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As one aspect of the present disclosure, there is provided a phase shifter driving mechanism, wherein, as shown in fig. 1, 2 and 3, the phase shifter driving mechanism includes an actuator 100, a power shaft 200, and a transmission assembly 300, the actuator 100 is engaged with the transmission assembly 300, the power shaft 200 is engaged with the transmission assembly 300, and the transmission assembly 300 is used to convert a rotational motion of the power shaft 200 into a linear motion of the actuator 100.
As shown in fig. 4, in the case where the power shaft 200 is rotated clockwise, the transmission assembly 300 stops converting the rotational motion of the power shaft 200 into the linear motion of the actuator 100 after moving the actuator 100 to the first limit position in the first direction.
As shown in fig. 5, when the power shaft 200 rotates counterclockwise, the transmission assembly 300 stops converting the rotational motion of the power shaft 200 into the linear motion of the actuator 100 after moving the actuator 100 to the second limit position in the second direction, and the first direction is opposite to the second direction.
It should be noted that, when the phase shifter is phase-modulated, the actuator 100 is connected to the regulator of the phase shifter, the power shaft 200 is connected to the output shaft 400 of the driving motor, and the driving motor output is controlled by the controller.
The output shaft 400 of the driving motor rotates clockwise to drive the power shaft 200 to rotate, and after the driving assembly 300 moves the executing piece 100 to the first limit position under the driving of the power shaft 200, even if the output shaft 400 of the driving motor drives the power shaft 200 to continue to rotate, the driving assembly 300 does not convert the rotation motion of the power shaft 200 into the linear motion of the executing piece 100.
If the controller determines that the clockwise rotation time of the drive motor exceeds the time required for the one-way full stroke of the actuator 100 under the drive of the drive motor, it indicates that the actuator 100 has zeroed the phase shifter.
The output shaft 400 of the driving motor rotates anticlockwise to drive the power shaft 200 to rotate, and after the driving assembly 300 moves the executing piece 100 to the second limit position under the driving of the power shaft 200, even if the output shaft 400 of the driving motor drives the power shaft 200 to continue rotating, the driving assembly 300 does not convert the rotating motion of the power shaft 200 into the linear motion of the executing piece 100.
If the controller determines that the counterclockwise rotation time of the driving motor exceeds the time required for the one-way full stroke of the actuator 100 under the driving of the driving motor, it indicates that the actuator 100 has zeroed the phase shifter.
In the present disclosure, the driving motor control actuator 100 can realize idling after the phase shifter is adjusted to zero position through the transmission assembly 300, that is, the phase shifter can be adjusted to zero without the occurrence of locked rotation of the driving motor, so that the requirements on the mechanical properties of each component of the phase shifter driving mechanism are reduced, and the damage to the driving motor is also reduced.
In the present disclosure, the specific structure of the transmission assembly 300 is not particularly limited, and the transmission assembly 300 may include a first unidirectional transmission assembly 310 and a second unidirectional transmission assembly 320 as an alternative embodiment for the convenience of control and simplification of the structure. In such an embodiment, converting clockwise rotation of the power shaft 200 into linear movement of the actuator 100 in the first direction and converting counterclockwise rotation of the power shaft 200 into linear movement of the actuator 100 in the second direction may be accomplished by the first unidirectional transmission assembly 310 and the second unidirectional transmission assembly 320, respectively. It should be noted that the movement of the first unidirectional transmission assembly 310 and the movement of the second unidirectional transmission assembly 320 do not interfere with each other.
There are many mechanical structures that can convert a rotary motion into a linear motion, for example, a rotary motion can be converted into a linear motion by a rack-and-pinion mechanism, a rotary motion can be converted into a linear motion by a belt transmission, a rotary motion can be converted into a linear motion by a chain transmission, or the like.
In order to make the structure of the phase shifter driving mechanism more compact, in the present embodiment, as shown in fig. 1 to 5, a rack-and-pinion manner is selected to convert the rotational movement of the power shaft 200 into the linear movement of the actuator 100. Specifically:
the actuator 100 includes a mounting body 110 and engagement teeth 120, the engagement teeth 120 being formed on an engagement surface of the mounting body 110.
The first unidirectional transmission assembly 310 includes a first unidirectional bearing 311, a first master transmission gear 312, and a first slave transmission gear 313. The inner ring of the first unidirectional bearing 311 is sleeved on the power shaft 200, the first main transmission gear 312 is sleeved on the outer ring of the first unidirectional bearing 311, the first main transmission gear 312 is meshed with the first auxiliary transmission gear 313, and the first auxiliary transmission gear 313 is meshed with the meshing teeth 120 of the executing piece 100.
By "one-way bearing" is meant that the inner and outer races of the one-way bearing are relatively rotatable in one of a clockwise direction and a counter-clockwise direction, and are relatively stationary and snap-fitted together in the other of the clockwise direction and the counter-clockwise direction. The present invention is not limited to one-way bearings and a ratchet mechanism or other one-way movement mechanism may be used. In the present disclosure, the inner ring of the first one-way bearing 311 is sleeved on the power shaft 200 and can rotate with the rotation of the power shaft 200. When the power shaft 200 rotates clockwise, the inner race and the outer race of the first one-way bearing 311 are engaged together and relatively stationary. In the case where the power shaft 200 rotates counterclockwise, relative rotation can occur between the inner race and the outer race of the first one-way bearing 311. That is, in the case where the power shaft 200 rotates counterclockwise, the inner race of the first one-way bearing 311 rotates with the power shaft 200, and the outer race of the first one-way bearing 311 does not rotate under the restriction of the actuator 100. That is, in the present disclosure, in the case where the power shaft 200 rotates clockwise, the inner race and the outer race of the first one-way bearing 311 are relatively stationary, and the outer race of the first one-way bearing 311 rotates clockwise with the power shaft 200, and in the case where the power shaft 200 rotates counterclockwise, the inner race of the first one-way bearing 311 rotates counterclockwise with the power shaft 200, there is a relative rotation between the outer race of the first one-way bearing 311 and the outer race of the first one-way bearing 311. In the first limit position, the first driven gear 313 is disengaged from the engagement teeth 120. In this case, after the first unidirectional transmission assembly 310 drives the actuator 100 to the first limit position, the first slave transmission gear 313 continues to rotate without affecting the position of the actuator 100. The actuator 100 is connected to the phase shifter, and under the action of the phase shifter, the actuator 100 is under the static action, and this position is the zero position of the phase shifter.
Accordingly, the second unidirectional transmission assembly 320 includes a second unidirectional bearing 321, a second main transmission gear 322, and a second auxiliary transmission gear 323, wherein an inner ring of the second unidirectional bearing 321 is sleeved on the power shaft 200, the second main transmission gear 323 is sleeved on an outer ring of the second unidirectional bearing 321, the second auxiliary transmission gear 323 is meshed with the second main transmission gear 322, the second auxiliary transmission gear 323 is meshed with the meshing teeth 120 of the executing member 100, under the condition that the power shaft 200 rotates clockwise, the inner ring and the outer ring of the second unidirectional bearing 321 rotate relatively, and under the condition that the power shaft 200 rotates clockwise, the inner ring of the second unidirectional bearing 321 rotates counterclockwise along with the power shaft 200, the inner ring of the second unidirectional bearing 321 and the outer ring of the second unidirectional bearing 321 are relatively stationary, and at the second limit position, the second driven gear 323 is separated from the meshing teeth 120. In this case, after the second unidirectional transmission assembly 320 drives the actuator 100 to the second limit position, the second driven gear 323 continues to rotate without affecting the position of the actuator 100. The actuator 100 is connected to the phase shifter, and under the action of the phase shifter, the actuator 100 is under the static action, and this position is the zero position of the phase shifter.
In the above embodiment, in the case where the power shaft 200 rotates clockwise, the first slave transmission gear 313 may transmit power to the engagement teeth 120 of the actuator 100, and in the case where the engagement teeth 120 move in the first direction, the second slave transmission gear 323 may be rotated, and the second slave transmission gear 323 may be rotated by the second master transmission gear 322. After the actuator 100 moves to the first limit position, the second slave drive gear 323 remains engaged with the engagement teeth 120, although the first slave drive gear 313 is disengaged from the engagement teeth 120. When the power shaft 200 rotates counterclockwise, the power shaft 200 drives the second main driving gear 322 to rotate, and the second main driving gear 322 drives the second auxiliary driving gear 323 to rotate, so as to drive the actuator 100 to move along the second direction. In this process, the engagement teeth 120 may rotate the first slave transfer gear 313 and rotate the first master transfer gear 312. When the actuator 100 reaches the second limit position, the second slave drive gear 323 is disengaged from the engagement teeth 120, but the first slave drive gear 313 remains engaged with the engagement teeth 120. In the case that the power shaft 200 continues to rotate clockwise, the first main transmission gear 312 may rotate the first auxiliary transmission gear 313 and drive the actuator 100 to move in the first direction.
For ease of manufacture and assembly, in the present disclosure, the number of teeth of the first slave drive gear 313 is the same as the number of teeth of the second slave drive gear 323, and the number of teeth of the first master drive gear 312 is the same as the number of teeth of the second master drive gear 322.
In order to protect the transmission assembly 300, in the present disclosure, the phase shifter driving mechanism further includes a housing 500, and the transmission assembly 300 is disposed in the housing 500.
In the present disclosure, there is no particular limitation on how power is supplied to the power shaft 200. For example, power may be provided to power shaft 200 by an outsourced drive motor. Of course, the phase shifter driving mechanism may also be provided with a driving motor, and the output shaft 400 of the driving motor is connected with the power shaft 200.
As a second aspect of the present disclosure, there is provided an electrically tunable antenna, as shown in fig. 6, including at least one phase shifter and at least one phase shifter driving mechanism, where the phase shifter driving mechanism is provided in the first aspect of the present disclosure, each of the phase shifter driving mechanisms corresponds to a respective phase shifter, and the actuator is connected to an adjusting member of the respective phase shifter.
The output shaft 400 of the driving motor rotates clockwise to drive the power shaft 200 to rotate, and after the driving assembly 300 moves the executing piece 100 to the first limit position under the driving of the power shaft 200, even if the output shaft 400 of the driving motor drives the power shaft 200 to continue to rotate, the driving assembly 300 does not convert the rotation motion of the power shaft 200 into the linear motion of the executing piece 100.
If the controller determines that the clockwise rotation time of the drive motor exceeds the time required for the one-way full stroke of the actuator 100 under the drive of the drive motor, it indicates that the actuator 100 has zeroed the phase shifter.
The output shaft 400 of the driving motor rotates anticlockwise to drive the power shaft 200 to rotate, and after the driving assembly 300 moves the executing piece 100 to the second limit position under the driving of the power shaft 200, even if the output shaft 400 of the driving motor drives the power shaft 200 to continue rotating, the driving assembly 300 does not convert the rotating motion of the power shaft 200 into the linear motion of the executing piece 100.
If the controller determines that the counterclockwise rotation time of the driving motor exceeds the time required for the one-way full stroke of the actuator 100 under the driving of the driving motor, it indicates that the actuator 100 has zeroed the phase shifter.
In the present disclosure, the driving motor can control the actuator 100 to idle after the phase shifter is adjusted to zero position through the transmission assembly, that is, the phase shifter can be adjusted to zero without the occurrence of locked rotation of the driving motor, so that the requirements on the mechanical properties of each component of the driving mechanism of the phase shifter are reduced, and the damage to the driving motor is also reduced.
It should be noted that the electrically tunable antenna may further include a plurality of radiating array elements, which are not described herein.
In the present disclosure, the number of phase shifters is not particularly limited, and as shown in the drawings, the electrically tunable antenna includes two phase shifters and two phase shifter driving mechanisms.
As a third aspect of the present disclosure, there is provided a phase modulation method of a phase shifter, wherein, as shown in fig. 7, the phase modulation method includes:
in step S310, determining a time for unidirectional rotation of a driving motor, wherein an output shaft of the driving motor is connected to a power shaft of the phase shifter driving mechanism provided in the first aspect of the present disclosure;
in step S320, in the case where the time for the unidirectional rotation of the driving motor is greater than the time required for the driving motor to rotate through the unidirectional full stroke, the position of the phase shifter is determined as a zero position.
It should be noted that the above-mentioned "unidirectional rotation" may refer to either clockwise rotation or counterclockwise rotation.
In the present disclosure, the driving motor control actuator 100 can realize idling after the phase shifter is adjusted to zero position through the transmission assembly 300, that is, the phase shifter can be adjusted to zero without the occurrence of locked rotation of the driving motor, so that the requirements on the mechanical properties of each component of the phase shifter driving mechanism are reduced, and the damage to the driving motor is also reduced.
As a fourth aspect of the present disclosure, there is provided an electrically tunable antenna system, wherein the electrically tunable antenna system includes an electrically tunable antenna provided in the second aspect of the present disclosure, a phase shifter driving mechanism provided in the first aspect of the present disclosure, a memory, and a controller, and the memory stores an executable program, and when the controller invokes the executable program, the phase modulation method provided in the third aspect of the present disclosure can be implemented.
Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the apparatus disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
And are generally meant to be illustrative and not limiting. In some instances, it will be apparent to one skilled in the art that features, characteristics, and/or elements described in connection with a particular embodiment may be used alone or in combination with other embodiments unless explicitly stated otherwise. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the disclosure as set forth in the appended claims.
Claims (10)
1. The phase shifter driving mechanism is characterized by comprising an executing piece, a power shaft and a transmission assembly, wherein the executing piece is matched with the transmission assembly, the power shaft is matched with the transmission assembly, and the transmission assembly is used for converting the rotary motion of the power shaft into the linear motion of the executing piece;
when the power shaft rotates clockwise, the transmission assembly stops converting the rotary motion of the power shaft into the linear motion of the executing piece after moving the executing piece to a first limit position along a first direction;
under the condition that the power shaft rotates anticlockwise, after the actuating member moves to a second limit position along a second direction, the transmission assembly stops converting the rotary motion of the power shaft into the linear motion of the actuating member, and the first direction is opposite to the second direction.
2. The phase shifter drive mechanism of claim 1, wherein the transmission assembly comprises a first unidirectional transmission assembly and a second unidirectional transmission assembly;
the first unidirectional transmission assembly is used for converting the clockwise rotation motion of the power shaft into the linear motion of the executing piece along the first direction;
the second unidirectional transmission assembly is used for converting the anticlockwise rotation motion of the power shaft into the linear motion of the executing piece along the second direction.
3. The phase shifter driving mechanism according to claim 2, wherein the actuator includes a mounting body and a meshing tooth formed on a meshing surface of the mounting body;
the first unidirectional transmission assembly comprises a first unidirectional bearing, a first main transmission gear and a first auxiliary transmission gear, wherein the inner ring of the first unidirectional bearing is sleeved on the power shaft, the first main transmission gear is sleeved on the outer ring of the first unidirectional bearing, the first auxiliary transmission gear is meshed with the first main transmission gear, the first auxiliary transmission gear is meshed with the meshing teeth of the executing piece, the inner ring and the outer ring of the first unidirectional bearing are relatively static under the condition that the power shaft rotates clockwise, the inner ring of the first unidirectional bearing rotates clockwise along with the power shaft, the inner ring of the first unidirectional bearing rotates anticlockwise along with the power shaft under the condition that the power shaft rotates anticlockwise, relative rotation exists between the outer ring of the first unidirectional bearing and the outer ring of the first unidirectional bearing, and the first auxiliary transmission gear is separated from the meshing teeth at the first limiting position;
the second unidirectional transmission assembly comprises a second unidirectional bearing, a second main transmission gear and a second auxiliary transmission gear, wherein the inner ring of the second unidirectional bearing is sleeved on the power shaft, the second main transmission gear is sleeved on the outer ring of the second unidirectional bearing, the second auxiliary transmission gear is meshed with the second main transmission gear, the second auxiliary transmission gear is meshed with the meshing teeth of the executing piece, the inner ring and the outer ring of the second unidirectional bearing relatively rotate under the condition that the power shaft rotates clockwise, the inner ring of the second unidirectional bearing rotates clockwise along with the power shaft, the inner ring of the second unidirectional bearing rotates anticlockwise along with the power shaft under the condition that the power shaft rotates anticlockwise, the outer ring of the second unidirectional bearing and the outer ring of the second unidirectional bearing are relatively static, and the second driven gear is separated from the meshing teeth at the second limit position.
4. A phase shifter drive mechanism as recited in claim 3, wherein the first slave transfer gear has the same number of teeth as the second slave transfer gear;
the number of teeth of the first main transmission gear is the same as the number of teeth of the second main transmission gear.
5. The phase shifter drive mechanism of any one of claims 1-4, further comprising a housing, the transmission assembly disposed within the housing.
6. The phase shifter driving mechanism according to any one of claims 1 to 4, further comprising a driving motor, an output shaft of the driving motor being connected to the power shaft.
7. An electrically tunable antenna comprising at least one phase shifter and at least one phase shifter drive mechanism, wherein the phase shifter drive mechanism is as claimed in any one of claims 1 to 6, each phase shifter drive mechanism corresponds to a respective phase shifter, and the actuator is connected to an adjustment member of the respective phase shifter.
8. The electrically tunable antenna of claim 7, wherein the electrically tunable antenna includes two of the phase shifters and two of the phase shifter drive mechanisms.
9. A phase modulation method of a phase shifter, the phase modulation method comprising:
determining the time of unidirectional rotation of a drive motor, wherein an output shaft of the drive motor is connected to a power shaft of the phase shifter drive mechanism according to any one of claims 1 to 5;
and determining the position of the phase shifter as a zero position under the condition that the time of unidirectional rotation of the driving motor is longer than the time required by unidirectional full stroke of the executing piece under the driving of the driving motor.
10. An electrically tunable antenna system, comprising an electrically tunable antenna as claimed in claim 7 or 8, a phase shifter driving mechanism as claimed in any one of claims 1 to 6, a memory, and a controller, wherein the memory stores an executable program, and the controller is capable of implementing the phase modulation method as claimed in claim 9 when the controller invokes the executable program.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210751685.8A CN117353026A (en) | 2022-06-29 | 2022-06-29 | Phase shifter driving mechanism, electrically tunable antenna, system and phase modulation method |
| PCT/CN2023/101338 WO2024001868A1 (en) | 2022-06-29 | 2023-06-20 | Phase shifter driving device, remote electrical tilt antenna and system, phase modulation method for phase shifter, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210751685.8A CN117353026A (en) | 2022-06-29 | 2022-06-29 | Phase shifter driving mechanism, electrically tunable antenna, system and phase modulation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117353026A true CN117353026A (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210751685.8A Pending CN117353026A (en) | 2022-06-29 | 2022-06-29 | Phase shifter driving mechanism, electrically tunable antenna, system and phase modulation method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117353026A (en) |
| WO (1) | WO2024001868A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203026642U (en) * | 2012-12-28 | 2013-06-26 | 华为技术有限公司 | Control device for electronically tunable antenna and multi-band antenna |
| CN103700944B (en) * | 2013-12-31 | 2016-08-24 | 安徽省大富重工技术有限公司 | A kind of antenna and the adjusting means of lower decline angle thereof |
| CN105529536B (en) * | 2015-02-14 | 2018-07-13 | 广东通宇通讯股份有限公司 | Transmission system and its antenna for base station |
| CN111180893A (en) * | 2020-01-06 | 2020-05-19 | 武汉虹信通信技术有限责任公司 | Transmission device and electrically-controlled antenna |
| TR202018581A2 (en) * | 2020-11-19 | 2021-03-22 | Teknolus Enerji Egitim Muehendislik Bilisim Danismanlik Ithalat Ihracat Sanayi Ve Ticaret Ltd Sti | A MOVEMENT TO BE USED IN AN ANTENNA |
| CN113540796B (en) * | 2021-07-14 | 2023-09-22 | 京信通信技术(广州)有限公司 | Multi-frequency antenna, frequency-selecting phase modulation mechanism and device |
-
2022
- 2022-06-29 CN CN202210751685.8A patent/CN117353026A/en active Pending
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2023
- 2023-06-20 WO PCT/CN2023/101338 patent/WO2024001868A1/en unknown
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| WO2024001868A1 (en) | 2024-01-04 |
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