CN109802237B - Downtilt angle adjusting device of electrically tunable antenna and electrically tunable antenna - Google Patents
Downtilt angle adjusting device of electrically tunable antenna and electrically tunable antenna Download PDFInfo
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- CN109802237B CN109802237B CN201910104276.7A CN201910104276A CN109802237B CN 109802237 B CN109802237 B CN 109802237B CN 201910104276 A CN201910104276 A CN 201910104276A CN 109802237 B CN109802237 B CN 109802237B
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Abstract
The invention provides a downward inclination angle adjusting device of an electric tilt antenna and the electric tilt antenna, comprising a gear shifting module and a transmission module; the gear shifting module comprises a gear shifting assembly, a driving gear and a plurality of driven gear assemblies; the transmission module is provided with a plurality of transmission components, and each transmission component comprises a transmission screw rod and a transmission nut; the gear shifting driving interface drives the gear shifting screw rod to rotate and drives the gear shifting nut to do linear motion, and when the gear shifting nut moves to the position of the selected driven gear assembly, the gear shifting nut connects the driven gear assembly with the transmission screw rod of the transmission assembly; the transmission driving interface drives the driving gear to do rotary motion, and the driven gear assembly drives the corresponding transmission screw to do rotary motion, so that the transmission nut is driven to do linear motion to realize downward inclination angle adjustment. Therefore, the invention can realize the downward inclination angle adjustment of the multi-frequency electric tilt antenna by the drive of the two motors, can reduce the volume of the antenna and is convenient for the layout of the antenna; the installation and the dismantlement are more convenient, reduce manufacturing cost.
Description
Technical Field
The invention relates to the technical field of mobile communication base station antennas, in particular to a downward inclination angle adjusting device of an electric tilt antenna and the electric tilt antenna.
Background
The mobile antenna is used as a terminal of a mobile communication network, bears the dual functions of electromagnetic wave transmission and reception, namely a carrier for mobile communication signal transmission, and the quality of the application effect directly determines the quality of the mobile communication network. The electrically tunable antenna is a mobile antenna for adjusting the downtilt angle by using electrons, and is widely applied to a mobile communication base station because the electrically tunable antenna can reduce call loss and interference and the accuracy of adjusting the downtilt angle is higher.
In a mobile communication system, in order to optimize radio signals covered by a served area and to suppress mutual interference of same-frequency signals, it is necessary to appropriately adjust a down tilt of an antenna of a mobile communication base station. The electric downtilt is continuously adjusted through a phase shifter of a key device of the antenna, an antenna feed network is continuously adjusted, and the phase of each oscillator in the antenna array is continuously changed, so that the continuous adjustment of the electric downtilt of the antenna is realized on the premise that the physical position of the antenna is not changed.
The application of the existing base station multi-frequency electrically-tunable antenna is more and more extensive, and in order to realize the downward inclination angle adjustment of a multi-path phase shifter, each path of phase shifter is required to be provided with an independent transmission device and a driving motor. Namely, the phase shifter is driven by a transmission device, and the transmission device is provided with a set of driving motors. For a multi-frequency electrically tunable antenna, a plurality of sets of motors are generally required to adjust the downward inclination angle of the antenna. The space that multiunit driving motor occupy is great, and it is comparatively complicated to couple together with transmission, has improved the antenna overall layout degree of difficulty, and installation and dismantlement are very inconvenient. In addition, if the motor fails, the whole antenna needs to be dismantled and maintained, so that the use efficiency of the antenna is influenced, and the cost is high.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a method which can realize the downward inclination angle adjustment of a multi-frequency electric tilt antenna through two motor drives, can reduce the volume of the antenna and is convenient for the layout of the antenna; the installation and the dismantlement are more convenient, reduce manufacturing cost.
In order to achieve the above object, the present invention provides a downtilt angle adjusting device of an electrically tunable antenna, including a gear shifting module, a transmission module, a gear shifting driving interface and a transmission driving interface;
the shift module further includes: a shift assembly, a drive gear and a plurality of driven gear assemblies; the driving gear is connected with the transmission driving interface, and the driving gear and the driven gear assembly are meshed with each other; the gear shifting assembly comprises a gear shifting screw rod and a gear shifting nut screwed on the gear shifting screw rod, and the gear shifting screw rod is connected with the gear shifting driving interface;
the transmission module further includes: the transmission assembly comprises a plurality of transmission assemblies and a plurality of driven gear assemblies, wherein each transmission assembly comprises a transmission screw and a transmission nut screwed on the transmission screw;
the gear shifting driving interface drives the gear shifting screw rod to rotate and drives the gear shifting nut to linearly move on the gear shifting screw rod, and when the gear shifting nut moves to the selected driven gear assembly position, the gear shifting nut connects the selected driven gear assembly with the corresponding transmission screw rod of the transmission assembly to realize gear selection; the transmission driving interface drives the driving gear to rotate, the driving gear drives all the driven gear assemblies to rotate, the selected driven gear assemblies drive the corresponding transmission screw rods to rotate, and then the corresponding transmission nuts are driven to linearly move on the transmission screw rods so as to realize downward inclination angle adjustment.
According to the downtilt angle adjusting device of the electrically tunable antenna, each driven gear assembly further comprises: the driven gear, the transmission coupler, the plugging and unplugging pieces and the supporting rod, wherein the plugging and unplugging pieces are arranged on the supporting rod in a deflecting mode, and the transmission coupler is connected with the corresponding plugging and unplugging pieces; the driven gear is meshed with the driven gear in sequence; when the gear shifting nut moves to the selected position of the driven gear assembly, the gear shifting nut extrudes the insertion and extraction pieces to deflect a preset angle, and the insertion and extraction pieces drive the corresponding transmission couplers to be connected with the corresponding driven gears, so that gear selection is realized.
According to the downward inclination angle adjusting device of the electrically tunable antenna, a boss is arranged on the gear shifting nut, and claw grooves are correspondingly arranged on the transmission coupler and the driven gear respectively; when the shifting nut moves to the selected position of the driven gear assembly, the boss of the shifting nut extrudes the inserting and pulling piece to deflect a preset angle, and the extruded inserting and pulling piece enables the transmission coupling and the claw groove of the driven gear to be mutually jointed.
According to the downward inclination angle adjusting device of the electrically-regulated antenna, each driven gear assembly further comprises a limiting spring, and the limiting springs are arranged on the inserting and pulling pieces; when the driven gear assembly is not selected, the plug piece is jacked up by the limiting spring, and the claw grooves of the transmission coupler and the driven gear are separated from each other by the plug piece.
According to the downward inclination angle adjusting device of the electrically tunable antenna, the gear shifting assembly further comprises a roller wheel, the roller wheel is arranged on the gear shifting nut, and the roller wheel is connected and matched with the guide groove in the supporting seat.
According to the lower inclination angle adjusting device of the electrically tunable antenna, the lower inclination angle adjusting device further comprises a supporting seat, a baffle and an end plate; the supporting seat and the end plate are respectively positioned at two ends, and the baffle plate is arranged at the outer edge of the supporting seat; the gear shifting module, the transmission module, the gear shifting driving interface and the transmission driving interface are respectively installed on the supporting seat and the end plate.
According to the downward inclination angle adjusting device of the electrically tunable antenna, the downward inclination angle adjusting device further comprises a reversing gear; one end of the reversing gear is meshed with the gear shifting driving interface, and the other end of the reversing gear is meshed with a bevel gear on the gear shifting screw rod.
According to the downward inclination angle adjusting device of the electrically tunable antenna, each transmission assembly further comprises a guide rod, the guide rod is arranged in parallel with the transmission screw rod, and the transmission nut is in sleeve fit with the guide rod.
According to the downward inclination angle adjusting device of the electrically tunable antenna, the transmission driving interface is externally connected with a driving motor to provide transmission driving force, and the gear shifting driving interface is externally connected with a driving motor to provide gear shifting driving force.
The invention also provides an electric tilt antenna comprising the downward inclination angle adjusting device.
According to the invention, the gear shifting assembly is used for shifting gears, so that the matching of a gear shifting nut and driven gear assemblies at different positions can be realized; for the multi-frequency antenna, the down tilting of the multi-frequency antenna can be completed through one shifting nut only by increasing gears, and a plurality of groups of motors and transmission devices do not need to be installed in the antenna. Therefore, the invention can realize the downward inclination angle adjustment of the multi-frequency electric tilt antenna by the drive of the two motors, can reduce the volume of the antenna and is convenient for the layout of the antenna; the installation and the dismantlement are more convenient, reduce manufacturing cost.
Drawings
FIG. 1 is a schematic diagram of a preferred structure of an adjusting device of an electrically tunable antenna according to the present invention;
fig. 2 is a schematic structural diagram of a shift module of the electrically tunable antenna adjusting device according to the present invention;
FIG. 3 is a preferred partial side view of a shift module of the electrically tunable antenna adjustment apparatus of the present invention;
FIG. 4 is a schematic diagram of a preferred structure of a gear shifting assembly of the electrically tunable antenna adjustment device of the present invention;
fig. 5 is a schematic structural diagram of a transmission module of the electrically tunable antenna adjustment device of the present invention.
Description of reference numerals:
a lower inclination angle adjusting device 1; a shift module 11;
a drive gear 111; a drive coupling 112;
a driven gear 113; a plug-in sheet 114;
a limit spring 115; a support rod 116;
a shift assembly 117; shift screw 1171;
a shift nut 1172; a roller 1173;
a bevel gear 1174; a transmission module 12;
a drive screw 121; a drive nut 122;
a guide rod 123; a transmission drive interface 13;
a shift drive interface 14; a support base 15;
a baffle 16; an end plate 17;
a reversing gear 18.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that references in the specification to "one embodiment," "an example embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not intended to refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Moreover, where certain terms are used throughout the description and following claims to refer to particular components or features, those skilled in the art will understand that manufacturers may refer to a component or feature by different names or terms. This specification and the claims that follow do not intend to distinguish between components or features that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. In addition, the term "connected" as used herein includes any direct and indirect electrical connection. Indirect electrical connection means include connection by other means.
As shown in fig. 1 to 5, the invention provides a downtilt adjusting device 1 for an electrically tunable antenna, which includes a gear shifting module 11, a transmission module 12, a gear shifting driving interface 14, and a transmission driving interface 13, which are detachably mounted.
The shift module 11 further comprises: one shift assembly 117, one drive gear 111 and a plurality of driven gear assemblies. The driving gear 111 is connected with the transmission driving interface 13, and the driving gear 111 and the driven gear assembly are meshed with each other. The shift assembly 117 includes a shift screw 1171 and a shift nut 1172 screwed on the shift screw 1171, and the shift screw 1171 is connected with the shift driving interface 14.
The transmission module 12 further comprises: and each transmission assembly comprises a transmission screw rod 121 and a transmission nut 122 screwed on the transmission screw rod 121, and the transmission assemblies and the driven gear assemblies are respectively arranged correspondingly. Preferably, each transmission assembly further comprises a guide rod 123, the guide rod 123 is arranged in parallel with the transmission screw rod 121, the transmission nut 122 is in sleeve fit with the guide rod 123, and the guide rod 123 provides a guiding function for the transmission nut 122.
The gear shifting driving interface 14 drives the gear shifting screw 1171 to rotate, drives the gear shifting nut 1172 to linearly move on the gear shifting screw 1171, and when the gear shifting nut 1172 moves to the position of the selected driven gear assembly, the gear shifting nut 1172 connects the selected driven gear assembly with the transmission screw 121 of the corresponding transmission assembly, so that gear selection is realized. The transmission driving interface 13 drives the driving gear 111 to perform a rotational motion, the driving gear 111 drives all the driven gear assemblies to perform a rotational motion, and the selected driven gear assembly drives the corresponding transmission screw 121 to perform a rotational motion, so as to drive the corresponding transmission nut 122 to perform a linear motion on the transmission screw 121 to realize the downward inclination angle adjustment.
The downtilt angle adjusting device 1 can realize the matching of the gear shifting nut 1172 and driven gear assemblies at different positions by performing gear shifting movement through the gear shifting assembly, can complete the downtilt of a multi-band antenna through one gear shifting nut 1172 only by increasing gears for the multi-band antenna, does not need to install a plurality of groups of motors and transmission devices in the antenna, can reduce the volume of the antenna, and reduces the manufacturing cost of the antenna. The invention realizes the adjustment of the downward inclination angle of a plurality of groups of phase shifters driven by two motors, and is convenient for antenna layout and cost control. In addition, in the lower inclination angle adjusting device 1, the transmission module 12 can be matched with a detachably connected driving module, the whole lower inclination angle adjusting device 1 is fast to mount and dismount, when a motor module is abnormal, the motor module only needs to be pulled out of the whole lower inclination angle adjusting device 1 to be overhauled or replaced, an electric tuning antenna does not need to be dismounted, and the later maintenance cost is greatly reduced.
As shown in fig. 3 to 5, each of the driven gear assemblies preferably further includes: driven gear 113, transmission shaft coupling 112, plug piece 114 and support rod 116, but plug piece 114 deflection formula sets up on support rod 116, that is plug piece 114 can deflect certain angle at the support rod, and transmission shaft coupling 112 is connected with corresponding plug piece 114. The drive gear 111 is in turn meshed with the driven gear 113. When shift nut 1172 is moved to a selected driven gear assembly position, shift nut 1172 presses on the plunger plate 114 to deflect a predetermined angle. The insertion and extraction piece 114 drives the corresponding transmission coupling 112 to connect with the corresponding driven gear 113, so as to realize gear selection.
Preferably, the plurality of sets of transmission assemblies are concentrically arranged in one-to-one correspondence with the plurality of sets of driven gears 113. The drive couplings 112 of the multiple sets of drive assemblies mate with driven gears 113 in mating coupling relation on the shift assembly 117 and the drive couplings 112 connect with drive screws 121.
The transmission screw 121 can rotate to drive the driving interface 13 to drive the driving gear 111 to rotate, the driving gear 111 drives all the driven gears 113 to rotate, and the selected driven gear 113 drives the corresponding transmission screw 121 to rotate through the transmission coupler 112, so as to drive the corresponding transmission nut 122 to linearly move on the transmission screw 121 to realize downward inclination angle adjustment.
The gear shifting driving interface 14 drives the gear shifting screw 1171 to rotate, drives the gear shifting nut 1172 to perform linear motion on the gear shifting screw 1171, and when the gear shifting nut 1172 moves to the position of the selected plug-pull piece 114, the plug-pull piece 114 drives the transmission coupler 112 at the position to be matched and connected with the driven gear 113 at the same position, so that gear selection is realized. After the gear selection is completed, the transmission driving interface 13 drives the driving gear 111 to perform a rotational motion, the driving gear 111 drives all the driven gears 113 to move, the selected driven gear 113 drives the corresponding transmission screw 121 to perform a rotational motion through the corresponding transmission coupler 112, and the rotational transmission screw 121 drives the transmission nut 122 to perform a linear motion on the transmission screw 121 to realize the downward inclination angle adjustment.
In this embodiment, the driving gear 111 can drive eight driven gears 113 at the same time, the driving gear 111 is centered, two sides of the driving gear 111 are respectively provided with four driven gears 113, and each adjacent driving gear 111 and driven gear 113 or driven gear 113 and driven gear 113 are meshed with each other.
Preferably, as shown in fig. 3 to 4, the shift nut 1172 is provided with a boss, and the transmission coupling 112 and the driven gear 113 are respectively provided with claw grooves correspondingly. When the shift nut 1172 is moved to a selected driven gear assembly position (i.e., a selected position of the tab 114), the boss of the shift nut 1172 presses the tab 114 to deflect a predetermined angle, and the pressed tab 114 engages the pawl slots of the drive coupling 112 and the driven gear 113 with each other. At this time, the selected driven gear 113 can drive the corresponding transmission coupling 112 to perform a rotational motion.
Preferably, each driven gear assembly further comprises a limiting spring 115, the limiting spring 115 is arranged on the plug piece 114, and the limiting spring 115 is in a matching relationship with the plug piece 114. When the driven gear assembly is not selected, the plug sheet 114 is jacked up by the limiting spring 115, and the claw grooves of the transmission coupling 112 and the driven gear 113 are separated from each other by the jacked plug sheet 114. At this time, the driven gear 113 does not drive the transmission coupling 112 to rotate any more.
Preferably, the shifting assembly 117 further includes a roller 1173, the roller 1173 is disposed on the shifting nut 1172, the roller 1173 is connected and matched with the guiding groove on the supporting seat 15, and the roller 1173 provides a guiding function for the shifting nut 1172.
Preferably, the declination angle adjusting device 1 of the present invention further comprises a supporting seat 15, a baffle 16 and an end plate 17. The supporting seat 15 and the end plate 17 are respectively located at two ends of the downward inclination angle adjusting device 1 for supporting and fixing, and the baffle 16 is arranged at the outer edge of the supporting seat 15. The shift module 11, the transmission module 12, the shift drive interface 14 and the transmission drive interface 13 are mounted on the support base 15 and the end plate 17, respectively, in a predetermined hole-axis relationship.
Preferably, the pitch angle adjusting device 1 of the present invention further comprises a reversing gear 18. The reversing gear 18 is mounted on the support base 15 in a predetermined hole-axis relationship. Reversing gear 18 has one end engaged with shift drive interface 14 and the other end engaged with bevel gear 1174 on shift screw 1171. The reversing gear 18 reverses the input to the shift drive interface 14 to provide drive to the shift screw 1171.
Preferably, the transmission driving interface 13 is externally connected with a driving motor to provide transmission driving force, and the gear shifting driving interface 14 is externally connected with a driving motor to provide gear shifting driving force.
The downward inclination angle adjusting process of the embodiment is as follows: the gear shifting driving interface 14 drives the gear shifting screw 1171 to rotate, and drives the gear shifting nut 1172 in threaded fit with the gear shifting screw 1171 to perform linear motion. When the shifting nut 1172 moves to a set position, the plug piece 114 at the corresponding position is selected by the shifting nut 1172, the plug piece 114 limited by the limiting spring 115 is extruded by the shifting nut 1172, the plug piece 114 deflects for a preset angle around a set point after being extruded, and the plug piece 114 drives the transmission coupling 112 at the position to be matched with the driven gear 113 at the same position, so that gear selection is realized. After the matching is completed, the gear shifting driving interface 14 drives the driving gear 111 to rotate, drives all the driven gears 113 to move, completes the matching of the transmission coupling 112 to drive the transmission screw 121 to rotate, and drives the transmission nut 122 to linearly move to realize the adjustment of the downward inclination angle by the rotating transmission screw 121.
The invention also provides an electric tilt antenna comprising the downward inclination angle adjusting device 1.
In conclusion, the gear shifting assembly performs gear shifting movement, so that the matching of the gear shifting nut and the driven gear assemblies at different positions can be realized; for the multi-frequency antenna, the down tilting of the multi-frequency antenna can be completed through one shifting nut only by increasing gears, and a plurality of groups of motors and transmission devices do not need to be installed in the antenna. Therefore, the invention can realize the downward inclination angle adjustment of the multi-frequency electric tilt antenna by the drive of the two motors, can reduce the volume of the antenna and is convenient for the layout of the antenna; the installation and the dismantlement are more convenient, reduce manufacturing cost.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A downtilt angle adjusting device of an electrically tunable antenna is characterized by comprising a gear shifting module, a transmission module, a gear shifting driving interface and a transmission driving interface;
the shift module further includes: a shift assembly, a drive gear and a plurality of driven gear assemblies; the driving gear is connected with the transmission driving interface, and the driving gear and the driven gear assembly are meshed with each other; the gear shifting assembly comprises a gear shifting screw rod and a gear shifting nut screwed on the gear shifting screw rod, and the gear shifting screw rod is connected with the gear shifting driving interface;
the transmission module further includes: the transmission assembly comprises a plurality of transmission assemblies and a plurality of driven gear assemblies, wherein each transmission assembly comprises a transmission screw and a transmission nut screwed on the transmission screw;
the gear shifting driving interface drives the gear shifting screw rod to rotate and drives the gear shifting nut to linearly move on the gear shifting screw rod, and when the gear shifting nut moves to the selected driven gear assembly position, the gear shifting nut connects the selected driven gear assembly with the corresponding transmission screw rod of the transmission assembly to realize gear selection; the transmission driving interface drives the driving gear to rotate, the driving gear drives all the driven gear assemblies to rotate, and the selected driven gear assemblies drive the corresponding transmission screw rods to rotate so as to drive the corresponding transmission nuts to linearly move on the transmission screw rods to realize downward inclination angle adjustment;
each of the driven gear assemblies further comprises: the driven gear, the transmission coupler, the plugging and unplugging pieces and the supporting rod, wherein the plugging and unplugging pieces are arranged on the supporting rod in a deflecting mode, and the transmission coupler is connected with the corresponding plugging and unplugging pieces; the driven gear is meshed with the driven gear in sequence; when the gear shifting nut moves to the selected position of the driven gear assembly, the gear shifting nut extrudes the insertion and extraction pieces to deflect a preset angle, and the insertion and extraction pieces drive the corresponding transmission couplers to be connected with the corresponding driven gears, so that gear selection is realized.
2. The downward inclination angle adjusting device of an electrically tunable antenna according to claim 1, wherein a boss is provided on the shift nut, and claw grooves are respectively provided on the transmission coupler and the driven gear correspondingly; when the shifting nut moves to the selected position of the driven gear assembly, the boss of the shifting nut extrudes the inserting and pulling piece to deflect a preset angle, and the extruded inserting and pulling piece enables the transmission coupling and the claw groove of the driven gear to be mutually jointed.
3. The downward inclination angle adjusting device of an electrically tunable antenna according to claim 2, wherein each driven gear assembly further comprises a limiting spring, and the limiting spring is disposed on the plug sheet; when the driven gear assembly is not selected, the plug piece is jacked up by the limiting spring, and the claw grooves of the transmission coupler and the driven gear are separated from each other by the plug piece.
4. The downward inclination angle adjusting device of an electrically tunable antenna according to claim 1, wherein the gear shifting assembly further comprises a roller, the roller is disposed on the gear shifting nut, and the roller is connected and matched with the guide groove on the support seat.
5. The downtilt angle adjusting device of an electrically tunable antenna according to claim 1, wherein the downtilt angle adjusting device further comprises a support base, a baffle plate and an end plate; the supporting seat and the end plate are respectively positioned at two ends, and the baffle plate is arranged at the outer edge of the supporting seat; the gear shifting module, the transmission module, the gear shifting driving interface and the transmission driving interface are respectively installed on the supporting seat and the end plate.
6. The downtilt angle adjusting device of an electrically tunable antenna according to claim 1, wherein the downtilt angle adjusting device further comprises a reversing gear; one end of the reversing gear is meshed with the gear shifting driving interface, and the other end of the reversing gear is meshed with a bevel gear on the gear shifting screw rod.
7. The downtilt angle adjusting device of an electrically tunable antenna according to claim 1, wherein each transmission assembly further comprises a guide rod, the guide rod is arranged in parallel with the transmission screw, and the transmission nut is in sleeve fit with the guide rod.
8. The downtilt angle adjusting device of an electrically tunable antenna according to claim 1, wherein the transmission driving interface is externally connected with a driving motor to provide a transmission driving force, and the shift driving interface is externally connected with a driving motor to provide a shift driving force.
9. An electrically tunable antenna comprising the downtilt adjustment device according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910104276.7A CN109802237B (en) | 2019-02-01 | 2019-02-01 | Downtilt angle adjusting device of electrically tunable antenna and electrically tunable antenna |
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| CN201910104276.7A CN109802237B (en) | 2019-02-01 | 2019-02-01 | Downtilt angle adjusting device of electrically tunable antenna and electrically tunable antenna |
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| CN109802237A CN109802237A (en) | 2019-05-24 |
| CN109802237B true CN109802237B (en) | 2021-02-19 |
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| CN110474166B (en) * | 2019-08-01 | 2021-10-01 | 中信科移动通信技术股份有限公司 | Electrically-tunable antenna transmission switching device and base station antenna |
| CN110459874B (en) * | 2019-09-11 | 2020-12-15 | 昆山恩电开通信设备有限公司 | Large-scale array electrically-tunable antenna phase shifter transmission mechanism |
| EP4027457B1 (en) * | 2019-09-29 | 2024-02-14 | Huawei Technologies Co., Ltd. | Adjusting apparatus, multiband antenna, and base station |
| CN112821075B (en) * | 2020-12-31 | 2022-07-26 | 京信通信技术(广州)有限公司 | Multi-frequency antenna and phase modulation switching control mechanism thereof |
| CN112886250B (en) * | 2021-01-04 | 2022-07-19 | 武汉虹信科技发展有限责任公司 | Shift type electrically-controlled antenna transmission device and base station antenna |
| CN113363723B (en) * | 2021-04-25 | 2023-02-21 | 摩比天线技术（深圳）有限公司 | Antenna transmission device and antenna |
| WO2022226691A1 (en) * | 2021-04-25 | 2022-11-03 | 摩比天线技术（深圳）有限公司 | Antenna transmission apparatus and antenna |
| CN113437519B (en) * | 2021-06-25 | 2022-12-27 | 京信通信技术(广州)有限公司 | Transmission device and antenna assembly of multi-frequency electric-tuning antenna |
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| CN107994339A (en) * | 2017-12-29 | 2018-05-04 | 京信通信系统（中国）有限公司 | Angle display and electric melody aerial lower inclination angle instruction device |
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| CN109802237A (en) | 2019-05-24 |
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Effective date of registration: 20220223 Address after: 343000 Jizhou Industrial Park, Ji'an City, Jiangxi Province Patentee after: MOBI TELECOMMUNICATIONS TECHNOLOGIES (JI'AN) Co.,Ltd. Address before: 518000 Guangming Street, Guangming New District, Shenzhen City, Guangdong Province, Genyu Road, Mobi Science and Technology Building Patentee before: MOBI TECHNOLOGY (SHENZHEN) Co.,Ltd. Patentee before: MOBI TELECOMMUNICATIONS TECHNOLOGIES (JI'AN) Co.,Ltd. Patentee before: MOBI TECHNOLOGIES (XI'AN) Co.,Ltd. Patentee before: MOBI ANTENNA TECHNOLOGIES (SHENZHEN) Co.,Ltd. |
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Application publication date: 20190524 Assignee: MOBI ANTENNA TECHNOLOGIES (SHENZHEN) Co.,Ltd. Assignor: MOBI TELECOMMUNICATIONS TECHNOLOGIES (JI'AN) Co.,Ltd. Contract record no.: X2023980043160 Denomination of invention: Downtilt adjustment device and electric tuning antenna for electric tuning antenna Granted publication date: 20210219 License type: Common License Record date: 20231010 |
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