CN114050415A - Transmission device capable of selecting output shaft and antenna using the same - Google Patents
Transmission device capable of selecting output shaft and antenna using the same Download PDFInfo
- Publication number
- CN114050415A CN114050415A CN202111311972.9A CN202111311972A CN114050415A CN 114050415 A CN114050415 A CN 114050415A CN 202111311972 A CN202111311972 A CN 202111311972A CN 114050415 A CN114050415 A CN 114050415A
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- Prior art keywords
- gear
- shaft
- rotating
- positioning
- input shaft
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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
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
Abstract
The invention discloses a transmission device capable of selecting an output shaft, which can enable an input shaft to rotate in a first rotating direction, and the input shaft drives a rotating frame to rotate to a preset position where a transition gear can be in transmission fit with a gear B of any group of output shafts through a transmission component and a one-way transmission component; when the input shaft rotates in a second rotating direction opposite to the first rotating direction and the rotating frame is located at the preset position, the input shaft drives the corresponding output shaft to rotate and output through the gear A, the transition gear and the gear B; that is, the driving of the transition gear to mesh with the gear B on the selected output shaft is effected by the input shaft in a first rotational direction; realize through the input shaft along the second direction of rotation that the input shaft passes through the meshing realization that drives the output shaft rotation between gear A, transition gear, the gear B, that is, only need a motor, alright in order to drive the effect of different output shaft individual rotations.
Description
Technical Field
The invention relates to a transmission device capable of selecting an output shaft, and also relates to an antenna.
Background
In mobile communication technology, the radiation angle of a base station antenna needs to be adjusted to cover different mobile communication areas, and the antenna is usually adjusted by an antenna actuator. The antenna adjustment drive mechanism has a significant impact on the cost, weight and size of the antenna. Most of base station antennas in the current market are a group of motors (including a servo motor and corresponding drivers) for independently driving an antenna to act, the motors with the same number as the antennas are required to be configured to realize the independent adjustment of a plurality of antennas, and the motors are expensive, so that the size of the antennas is large, and the cost is high.
The invention is researched and proposed aiming at the defects of the prior art.
Disclosure of Invention
The technical problems of high cost and large size caused by the fact that one motor is adopted to drive one antenna to adjust the posture in the prior art are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a transmission having a selectable output shaft, said transmission comprising: the positioning device comprises a shell, an input shaft, at least two groups of output shafts and a positioning transmission assembly; the input shaft and the output shaft are rotatably connected to the shell, the rotating shaft of the input shaft and the rotating shaft of the output shaft are parallel to each other, the output shaft is arranged on an arc with the circle center collinear with the rotating center of the output shaft, the input shaft is provided with a gear A, and the output shaft is provided with a gear B; the position selecting transmission assembly comprises: the rotary frame is rotationally connected to the input shaft, a rotating shaft of the rotary frame is collinear with a rotating shaft of the input shaft, the rotary frame is rotationally connected with a transition gear, the transition gear is meshed with the gear A and the gear B at the same time, and the transmission assembly and the one-way transmission assembly are arranged between the input shaft and the rotary frame; when the input shaft rotates in a first rotating direction, the input shaft drives the rotating frame to rotate to a preset position where the transition gear can be in transmission fit with the gear B of any group of output shafts through the transmission assembly and the one-way transmission assembly; when the input shaft rotates in a second rotation direction opposite to the first rotation direction and the rotating frame is located at the preset position, the input shaft drives the corresponding output shaft to rotate and output through the gear A, the transition gear and the gear B.
As above a can select transmission of output shaft, transmission assembly contain positioning disk, gear C, gear D, gear E, locating shaft and swivel mount, the positioning disk rotate and connect on the input shaft, the locating shaft rotate and connect on the positioning disk, gear C rotate and connect on the locating shaft, gear C can mesh with gear A, one-way transmission assembly set up between gear C and locating shaft, gear D set up on the locating shaft, the swivel mount rotate and connect on the input shaft, gear E and swivel mount connect at the swivel mount, gear E and gear D mesh, the casing on be equipped with at least two sets of anti-rotation assembly that are used for preventing the positioning disk pivoted.
According to the transmission device capable of selecting the output shaft, the positioning disc is provided with the positioning hole, the anti-rotation assembly comprises the positioning shell, the positioning shell is connected with the positioning column capable of extending into the positioning hole in a sliding mode, and the positioning shell is internally provided with the spring for driving the positioning column to be clamped into the positioning hole.
The transmission device capable of selecting the output shaft is characterized in that the head of the positioning column is provided with a guide surface A, the rotating frame comprises a rotating arm, a rotating shaft and a transition connecting part, the rotating arm is arranged on the rotating sleeve, the transition connecting part is connected between the rotating arm and the rotating shaft, the transition gear is rotatably connected onto the rotating shaft, and the rotating arm is provided with a guide surface B which enables the positioning column to retract into the positioning shell so that the rotating frame can pass through.
The transmission device capable of selecting the output shaft comprises a shell, a front shell, a middle shell and a rear shell, wherein the input shaft is rotatably connected between the front shell and the rear shell, the output shaft is rotatably connected between the front shell and the middle shell, and a positioning shell of the anti-rotation component is arranged in the rear shell.
The transmission device capable of selecting the output shafts is characterized in that ten groups of output shafts are arranged in the shell, and the centers of the ten groups of output shafts are arranged on an arc with the same line with the rotation center of the output shaft.
The antenna comprises the transmission device, the shell is provided with the antenna modules which correspond to each output shaft one by one, each antenna module comprises an antenna underframe connected to the shell, a single-rotation reciprocating lead screw is connected to the antenna underframe in a rotating mode and connected with the output shafts, a sliding seat is connected to the single-rotation reciprocating lead screw in a threaded mode, the antenna underframe is connected with the antenna in a sliding mode and connected with the sliding seat, and the shell is provided with a motor for driving an input shaft to move.
The invention has the beneficial effects that:
1. according to the transmission device, when the input shaft can rotate in the first rotation direction through the position selection transmission assembly, the input shaft drives the rotating frame to rotate to a preset position where the transition gear can be in transmission fit with the gear B of any group of output shafts through the transmission assembly and the one-way transmission assembly; when the input shaft rotates in a second rotating direction opposite to the first rotating direction and the rotating frame is located at the preset position, the input shaft drives the corresponding output shaft to rotate and output through the gear A, the transition gear and the gear B; that is, the transition gear is driven to rotate to be meshed with the gear B on the selected output shaft through the input shaft along the first rotation direction, namely, the output shaft is selected; realize through the input shaft along the second direction of rotation that the input shaft passes through the meshing realization that drives the output shaft rotation between gear A, transition gear, the gear B, realize that the input shaft realizes different operating condition in corotation and reversal, that is to say, only need a motor, alright in order to drive the effect of different output shaft individual rotations.
2. The antenna of the invention can independently drive each antenna to act by only adopting one motor, has compact structure, light weight and high reliability, can save the number of motors and obviously reduce the cost of the antenna.
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of an antenna according to the present invention;
FIG. 2 is a perspective cross-sectional view of a transmission of the present invention with an optional output shaft;
FIG. 3 is a schematic view of the hidden middle and rear housings of the transmission of the present invention with an optional output shaft;
FIG. 4 is an exploded view of the transmission of the present invention with an optional output shaft;
FIG. 5 is a schematic, cross-sectional view of a transmission of the present invention with an optional output shaft;
FIG. 6 is a schematic illustration of the position of the front housing, gear A, gear B and transition gear of the transmission of the present invention with an optional output shaft;
fig. 7 is a schematic structural diagram of an antenna module according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 2 to 7, the transmission 1 of the present embodiment, which can select an output shaft, includes: the device comprises a shell 11, an input shaft 12, at least two groups of output shafts 13 and a position selecting transmission assembly 14; the input shaft 12 and the output shaft 13 are rotatably connected to the housing 11, the rotating shaft of the input shaft 12 and the rotating shaft of the output shaft 13 are parallel to each other, the output shaft 13 is arranged on an arc with the center of circle collinear with the rotating center of the output shaft 13, the input shaft 12 is provided with a gear A121, and the output shaft 13 is provided with a gear B131; the position selecting transmission assembly 14 comprises: the rotary frame 141 is rotatably connected to the input shaft 12, the rotating shaft of the rotary frame 141 is collinear with the rotating shaft of the input shaft 12, the rotary frame 141 is rotatably connected with a transition gear 1411, the transition gear 1411 is simultaneously meshed with the gear A121 and the gear B131, and the transmission assembly 142 and the one-way transmission assembly 143 are arranged between the input shaft 12 and the rotary frame 141; when the input shaft 12 rotates in the first rotation direction, the input shaft 12 drives the rotating frame 141 to rotate to a preset position where the transition gear 1411 can be in transmission fit with the gear B131 of any group of output shafts 13 through the transmission assembly 142 and the one-way transmission assembly 143; when the input shaft 12 rotates in a second rotation direction opposite to the first rotation direction and the rotating frame 141 is located at the predetermined position, the input shaft 12 drives the corresponding output shaft 13 to rotate and output through the gear a121, the transition gear 1411 and the gear B131. According to the transmission device, when the input shaft can rotate in the first rotation direction through the position selection transmission assembly, the input shaft drives the rotating frame to rotate to a preset position where the transition gear can be in transmission fit with the gear B of any group of output shafts through the transmission assembly and the one-way transmission assembly; when the input shaft rotates in a second rotating direction opposite to the first rotating direction and the rotating frame is located at the preset position, the input shaft drives the corresponding output shaft to rotate and output through the gear A, the transition gear and the gear B; that is, the transition gear is driven to rotate to be meshed with the gear B on the selected output shaft through the input shaft along the first rotation direction, namely, the output shaft is selected; realize through the input shaft along the second direction of rotation that the input shaft passes through the meshing realization that drives the output shaft rotation between gear A, transition gear, the gear B, realize that the input shaft realizes different operating condition in corotation and reversal, that is to say, only need a motor, alright in order to drive the effect of different output shaft individual rotations.
The working principle of the invention will now be briefly described:
(1) when the input shaft 12 rotates in the first rotation direction, the input shaft 12 drives the rotating frame 141 to rotate to a preset position where the transition gear 1411 can be in transmission fit with the gear B131 of any group of output shafts 13 through the transmission assembly 142 and the one-way transmission assembly 143; at this time, the torque on the gear a112 is transmitted to the positioning shaft 1425 through the gear C and the one-way transmission assembly (in this embodiment, the ratchet assembly is adopted), the torque on the positioning shaft 1425 drives the rotating frame 141 through the gear D1423 and the gear E1424, and the structure thereof is equivalent to a planetary gear mechanism, that is: gear a corresponds to the sun gear, the rotating frame corresponds to the planet carrier, the transition gear corresponds to the planet gear, and the circle enclosed by gear B corresponds to the ring gear (when the output shaft is selected, all gears B are kept in a stationary state);
the angular speed omega of the gear A and the angular speed omega of the rotating frame meet the following conditions:
omega frame (R + R) is omega main R (wherein omega frame is the angular speed of the rotating frame, omega main is the angular speed of the gear A, R is the radius of the gear A, and R is the radius of the equivalent gear ring of the circle surrounded by the gear B);
the transmission ratio of the gear A and the rotating frame can be calculated through the formula, and meanwhile, the transmission ratio among the gear A, the gear C, the gear D and the gear E is restricted by the transmission ratio between the gear A and the rotating frame.
(2) When the input shaft 12 rotates in a second rotation direction opposite to the first rotation direction and the rotating frame 141 is located at the aforementioned predetermined position, the input shaft 12 drives the corresponding output shaft 13 to rotate and output through the gear a121, the transition gear 1411, and the gear B131; torque on the input shaft 12 is output from the output shaft through gear a112, transition gear 1411, and gear B131.
In this embodiment, when the transmission assembly 142 is used to select an output shaft, the input shaft drives the rotating frame to rotate to a desired position, the transmission assembly 142 includes a positioning plate 1421, a gear C1422, a gear D1423, a gear E1424, a positioning shaft 1425, and a rotating sleeve 1426, the positioning plate 1421 is rotatably connected to the input shaft 12, the positioning shaft 1425 is rotatably connected to the positioning plate 1421, the gear C1422 is rotatably connected to the positioning shaft 1425, the gear C1422 is capable of meshing with the gear a121, the unidirectional transmission assembly 143 is disposed between the gear C1422 and the positioning shaft 1425, the gear D1423 is disposed on the positioning shaft 1425, the rotating sleeve 1426 is rotatably connected to the input shaft 12, the gear E1424 and the rotating frame 141 are connected to the rotating sleeve 6, the gear E1424 is meshed with the gear D1423, at least two sets of anti-rotation assemblies 144 for preventing the positioning plate 1421 from rotating (that is, at least one set of anti-rotation assemblies 144 maintains the positioning of the puck as the turret rotates).
The positioning plate 1421 is provided with a positioning hole 14211, the positioning hole 14211 is used for matching the anti-rotation component 144 to keep the positioning plate relatively static, the anti-rotation component 144 includes a positioning shell 1441, the positioning shell 1441 is connected with a positioning column 1442 capable of extending into the positioning hole 14211 in a sliding manner, and a spring 1443 for driving the positioning column 1442 to keep being clamped into the positioning hole 14211 is arranged in the positioning shell 1441.
In this embodiment, a guide surface a14421 is disposed at a head of the positioning post 1442, the rotating frame 141 includes a rotating arm 1412, a rotating shaft 1413, and a transition connecting portion 1414, the rotating arm 1412 is disposed on the rotating sleeve 1426, the transition connecting portion 1414 is connected between the rotating arm 1412 and the rotating shaft 1413, the transition gear 1411 is rotatably connected to the rotating shaft 1413, a guide surface B14121 is disposed on the rotating arm 1412, the positioning post 1442 is retracted into the positioning shell 1441 to allow the rotating frame 141 to pass through, and the guide surface a14421 and the guide surface B14121 are matched to facilitate the positioning post to extend out of the positioning hole 14211.
In this embodiment, the housing 11 includes a front housing 111, a middle housing 112 and a rear housing 113, the input shaft 12 is rotatably connected to the front housing 111 and the rear housing 113, the output shaft 13 is rotatably connected between the front housing 111 and the middle housing 112, and the positioning housing 1441 of the anti-rotation assembly 144 is disposed in the rear housing 113.
In the present embodiment, ten sets of output shafts 13 are provided in the housing 11, and the ten sets of output shafts 13 are arranged on an arc having a center collinear with the center of rotation of the output shafts 13.
As shown in fig. 1, the antenna of this embodiment, the antenna include as last transmission 1, casing 11 on be equipped with the antenna module 2 of each output shaft 14 one-to-one, antenna module 2 contain the antenna chassis 21 of connection on casing 11, antenna chassis 21 on the swivelling joint have the reciprocal lead screw 22 of single rotation, the reciprocal lead screw 22 of single rotation be connected with output shaft 14, the reciprocal lead screw 22 of single rotation on threaded connection have a sliding seat 23, antenna chassis 21 on the swivelling joint have an antenna 24, antenna 24 be connected with sliding seat 23, casing 11 on be equipped with the motor 3 of drive input shaft 12 action. The antenna of the invention can independently drive each antenna to act by only adopting one motor, has compact structure, light weight and high reliability, can save the number of motors and obviously reduce the cost of the antenna.
The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. A transmission with selectable output shafts, characterized in that said transmission (1) comprises: the gear-shifting mechanism comprises a shell (11), an input shaft (12), at least two groups of output shafts (13) and a position-selecting transmission assembly (14);
the input shaft (12) and the output shaft (13) are rotationally connected to the shell (11), the rotating shaft of the input shaft (12) and the rotating shaft of the output shaft (13) are parallel to each other, the output shaft (13) is arranged on an arc with the circle center collinear with the rotating center of the output shaft (13), the input shaft (12) is provided with a gear A (121), and the output shaft (13) is provided with a gear B (131);
the position selecting transmission assembly (14) comprises: the transmission mechanism comprises a rotating frame (141), a transmission assembly (142) and a one-way transmission assembly (143), wherein the rotating frame (141) is rotatably connected to an input shaft (12), a rotating shaft of the rotating frame (141) is collinear with a rotating shaft of the input shaft (12), a transition gear (1411) is rotatably connected to the rotating frame (141), the transition gear (1411) is simultaneously meshed with a gear A (121) and a gear B (131), and the transmission assembly (142) and the one-way transmission assembly (143) are arranged between the input shaft (12) and the rotating frame (141);
when the input shaft (12) rotates in a first rotating direction, the input shaft (12) drives the rotating frame (141) to rotate to a preset position where the transition gear (1411) can be in transmission fit with the gear B (131) of any group of output shafts (13) through the transmission assembly (142) and the one-way transmission assembly (143); when the input shaft (12) rotates in a second rotating direction opposite to the first rotating direction and the rotating frame (141) is located at the preset position, the input shaft (12) drives the corresponding output shaft (13) to rotate and output through the gear A (121), the transition gear (1411) and the gear B (131).
2. The transmission device of claim 1, wherein the transmission assembly (142) comprises a positioning plate (1421), a gear C (1422), a gear D (1423), a gear E (1424), a positioning shaft (1425), and a rotary sleeve (1426), the positioning plate (1421) is rotatably connected to the input shaft (12), the positioning shaft (1425) is rotatably connected to the positioning plate (1421), the gear C (1422) is rotatably connected to the positioning shaft (1425), the gear C (1422) is capable of meshing with the gear A (121), the one-way transmission assembly (143) is disposed between the gear C (1422) and the positioning shaft (1425), the gear D (1423) is disposed on the positioning shaft (1425), the rotary sleeve (1426) is rotatably connected to the input shaft (12), and the gear E (1424) and the rotary sleeve (141) are connected to the rotary sleeve (1426), the gear E (1424) is meshed with the gear D (1423), and at least two groups of anti-rotation assemblies (144) for preventing the positioning disc (1421) from rotating are arranged on the shell (11).
3. The transmission device capable of selecting the output shaft according to claim 2, wherein the positioning plate (1421) is provided with a positioning hole (14211), the rotation preventing component (144) comprises a positioning shell (1441), a positioning column (1442) capable of extending into the positioning hole (14211) is slidably connected to the positioning shell (1441), and a spring (1443) for driving the positioning column (1442) to be kept clamped into the positioning hole (14211) is arranged in the positioning shell (1441).
4. The transmission device capable of selecting the output shaft according to claim 3, wherein the head of the positioning post (1442) is provided with a guide surface A (14421), the rotating frame (141) comprises a rotating arm (1412), a rotating shaft (1413) and a transition connecting part (1414), the rotating arm (1412) is arranged on the rotating sleeve (1426), the transition connecting part (1414) is connected between the rotating arm (1412) and the rotating shaft (1413), the transition gear (1411) is rotatably connected to the rotating shaft (1413), and the rotating arm (1412) is provided with a guide surface B (14121) for the positioning post (1442) to retract into the positioning shell (1441) to pass through the rotating frame (141).
5. A transmission with selectable output shafts according to claim 4, characterized in that the housing (11) comprises a front shell (111), a middle shell (112) and a rear shell (113), the input shaft (12) is rotatably connected between the front shell (111) and the rear shell (113), the output shaft (13) is rotatably connected between the front shell (111) and the middle shell (112), and the positioning shell (1441) of the anti-rotation assembly (144) is arranged in the rear shell (113).
6. A selectable output shaft transmission as claimed in claim 1, wherein said housing (11) has ten sets of output shafts (13) disposed therein, the ten sets of output shafts (13) being disposed on an arc having a center collinear with the center of rotation of the output shafts (13).
7. An antenna, characterized by: the antenna comprises the transmission device (1) as claimed in any one of claims 1 to 6, the housing (11) is provided with antenna modules (2) corresponding to each output shaft (14) one by one, each antenna module (2) comprises an antenna base frame (21) connected to the housing (11), the antenna base frame (21) is rotatably connected with a single-rotation reciprocating lead screw (22), the single-rotation reciprocating lead screw (22) is connected with the output shaft (14), the single-rotation reciprocating lead screw (22) is in threaded connection with a sliding seat (23), the antenna base frame (21) is in sliding connection with an antenna (24), the antenna (24) is connected with the sliding seat (23), and the housing (11) is provided with a motor (3) for driving the input shaft (12) to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111311972.9A CN114050415B (en) | 2021-11-08 | 2021-11-08 | Transmission device capable of selecting output shaft and antenna apparatus using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111311972.9A CN114050415B (en) | 2021-11-08 | 2021-11-08 | Transmission device capable of selecting output shaft and antenna apparatus using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114050415A true CN114050415A (en) | 2022-02-15 |
| CN114050415B CN114050415B (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111311972.9A Active CN114050415B (en) | 2021-11-08 | 2021-11-08 | Transmission device capable of selecting output shaft and antenna apparatus using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114050415B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050139024A1 (en) * | 2003-12-30 | 2005-06-30 | Industrial Technology Research Institute | Automatic gear transmission apparatus |
| CN105508518A (en) * | 2015-12-17 | 2016-04-20 | 广东通宇通讯股份有限公司 | Antenna transmission device and antenna |
| CN105514610A (en) * | 2015-09-29 | 2016-04-20 | 广东通宇通讯股份有限公司 | Antenna transmission device and antenna |
| CN106785438A (en) * | 2017-01-26 | 2017-05-31 | 京信通信系统（中国）有限公司 | The control system of transmission device and Downtilt |
| CN109216925A (en) * | 2018-10-11 | 2019-01-15 | 广东盛路通信科技股份有限公司 | The transmission device that antenna lower decline angle is adjusted |
| CN109428171A (en) * | 2017-09-05 | 2019-03-05 | 罗森伯格技术（昆山）有限公司 | A kind of antenna drive device and antenna |
| CN110011053A (en) * | 2018-01-05 | 2019-07-12 | 罗森伯格技术（昆山）有限公司 | A kind of antenna drive device and antenna |
| CN110364815A (en) * | 2018-04-11 | 2019-10-22 | 罗森伯格技术（昆山）有限公司 | Antenna phasing unit transmission device |
-
2021
- 2021-11-08 CN CN202111311972.9A patent/CN114050415B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050139024A1 (en) * | 2003-12-30 | 2005-06-30 | Industrial Technology Research Institute | Automatic gear transmission apparatus |
| CN105514610A (en) * | 2015-09-29 | 2016-04-20 | 广东通宇通讯股份有限公司 | Antenna transmission device and antenna |
| CN105508518A (en) * | 2015-12-17 | 2016-04-20 | 广东通宇通讯股份有限公司 | Antenna transmission device and antenna |
| CN106785438A (en) * | 2017-01-26 | 2017-05-31 | 京信通信系统（中国）有限公司 | The control system of transmission device and Downtilt |
| CN109428171A (en) * | 2017-09-05 | 2019-03-05 | 罗森伯格技术（昆山）有限公司 | A kind of antenna drive device and antenna |
| CN110011053A (en) * | 2018-01-05 | 2019-07-12 | 罗森伯格技术（昆山）有限公司 | A kind of antenna drive device and antenna |
| CN110364815A (en) * | 2018-04-11 | 2019-10-22 | 罗森伯格技术（昆山）有限公司 | Antenna phasing unit transmission device |
| CN109216925A (en) * | 2018-10-11 | 2019-01-15 | 广东盛路通信科技股份有限公司 | The transmission device that antenna lower decline angle is adjusted |
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| Publication number | Publication date |
|---|---|
| CN114050415B (en) | 2022-08-05 |
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