CN103700944A - Antenna and adjusting device for electrical downtilt of antenna - Google Patents
Antenna and adjusting device for electrical downtilt of antenna Download PDFInfo
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- CN103700944A CN103700944A CN201310752796.1A CN201310752796A CN103700944A CN 103700944 A CN103700944 A CN 103700944A CN 201310752796 A CN201310752796 A CN 201310752796A CN 103700944 A CN103700944 A CN 103700944A
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Abstract
The invention provides an antenna and an adjusting device for the electrical downtilt of the antenna. The adjusting device comprises an electric tuning unit, a first transmission mechanism, a pull rod, a second transmission mechanism, a potentiometer and a phase shifter, wherein the first transmission mechanism is respectively and mechanically connected with the electric tuning unit and the pull rod for converting rotary movement output by the electric tuning unit into linear movement of the pull rod, the second transmission mechanism is respectively and mechanically connected with the pull rod and the phase shifter for transmitting the linear movement of the pull rod to the phase shifter, the potentiometer is directly and mechanically connected with the pull rod, and is also electrically connected with the electric tuning unit for enabling the electric tuning unit to receive a resistance value measured by the potentiometer and to adjust the rotating angle of the electric tuning unit according to the relationship between the resistance value and the electrical downtilt of the antenna. Through the above manner, adjustment for the electrical downtilt of the antenna can be realized by the adjusting device with a simpler structure, the cost is relatively low, the transmission error during adjustment can be reduced, and the adjusting precision of the electrical downtilt of the antenna is improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the adjusting device of a kind of antenna and lower decline angle thereof.
Background technology
The all types of communication antenna such as antenna for base station conventionally need to be with respect to horizontal alignment certain angle that has a down dip when work, and this angle is called Downtilt or the angle of depression, by regulating this angle of declination can directly affect the radiation effect of antenna, i.e. coverage.At present the adjusting of Downtilt is mainly contained to mechanical tilt angle and two kinds of modes of lower decline angle, wherein lower decline angle can be by long-range electricity regulation and control system, and cost is low, therefore obtains applying more and more widely.
The adjusting device of a kind of lower decline angle of prior art comprise portable antenna angle of declination phase shifter, for phase shifter provides the electricity of final power, adjust unit, adjust rotatablely moving of unit to be converted into straight-line the first transmission mechanism, finally to drive the second transmission mechanism of phase shifter motion and the pull bar that connects the first transmission mechanism and the second transmission mechanism electricity.In order accurately to record the motion of phase shifter, at the second transmission mechanism place of close phase shifter, be provided with the rotational potentiometer being connected with the second transmission mechanism, the resistance value that rotational potentiometer is recorded feeds back to electricity and adjusts unit, electricity adjusts unit according to the anglec of rotation of resistance value adjusting self, and antenna lower decline angle is transferred to correct position the most at last.But in fact,, for rotational potentiometer can be connected with the second transmission mechanism, the second transmission mechanism need to increase the travelling gear with rotational potentiometer engagement.So not only make the second transmission mechanism more complicated, but also cause it to pass to the motion of phase shifter and pass between the motion of rotational potentiometer have very large error, cause resistance value that rotational potentiometer records can not reflect exactly the motion of phase shifter, make the alignment error of antenna lower decline angle very large.Conventionally the adjustable range of antenna lower decline angle is 0～14 degree, and regulating error while using this adjusting device is ± 0.5 degree.
In addition, the hand adjustment of the adjusting device of current antenna lower decline angle part mainly comprises adjusting screw(rod), scale and sliding shoe.The afterbody of pull bar is set to " Y " shape, and one end and the adjusting screw(rod) of sliding shoe are slidably connected, and the other end and pull bar afterbody wherein a side are fixedly connected with, and rotation adjusting screw(rod) can drive pull bar to move back and forth.Scale is fixedly connected with the opposite side of pull bar afterbody, and on scale, sign has scale, the angle of declination numerical value regulating with real-time vision-control screw rod.Visible, the hand adjustment of existing adjusting device partly comprises the parts such as adjusting screw(rod), scale and slide block, and amount of parts is many, and component structural is complicated, such as pull bar.
Summary of the invention
Given this, the invention provides the adjusting device of a kind of antenna and lower decline angle thereof, can realize the adjusting to antenna lower decline angle with the more simple adjusting device of structure, cost is lower, reduces driving error simultaneously, improves the degree of regulation of antenna lower decline angle.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the adjusting device that a kind of antenna lower decline angle is provided, comprise electricity tune unit, the first transmission mechanism, pull bar, the second transmission mechanism, potentiometer and phase shifter, wherein: the input of the first transmission mechanism is adjusted unit mechanical connection with electricity, the output of the first transmission mechanism is connected with one end of pull bar, electricity is adjusted rotatablely moving of unit output be converted into the rectilinear motion of pull bar; The input of the second transmission mechanism is connected with the other end of pull bar, and the output of the second transmission mechanism is connected with the phase shifter of adjustable antenna lower decline angle, so that the rectilinear motion of pull bar is driven to phase shifter; Potentiometer directly with pull bar mechanical connection, and adjust unit to be electrically connected to electricity, so that electricity adjusts unit to obtain the resistance value that potentiometer records, and according to the anglec of rotation of the electric tune of the relation adjusting unit of resistance value and antenna lower decline angle.
Wherein, electricity is adjusted unit to comprise motor and is arranged at the first gear on the output shaft of motor, the first transmission mechanism comprises power transmission shaft perpendicular to output shaft, is fixed on the second gear, the 3rd gear on power transmission shaft and the first tooth bar that is parallel to output shaft, the second gear and the engagement of the first gear, so that the power of motor is introduced to the first transmission mechanism, the first tooth bar is connected with pull bar, and the 3rd gear and the engagement of the first tooth bar, so that the rectilinear motion of the first transmission mechanism output is driven to pull bar.
Wherein, the second gear, the 3rd gear and power transmission shaft are one-body molded.
Wherein, adjusting device also comprises that being connected to electricity adjusts unit shaft to horizontal support and the end plate at two ends, the output shaft of horizontal support support motor, and be provided with the through hole passing for the first tooth bar.
Wherein, adjusting device further comprises scale, and one end of scale is connected with the other end of the first tooth bar, with shackle rod, does rectilinear motion, and the other end of scale exposes end plate, is provided with for indicating the graduation mark of antenna lower decline angle on scale.
Wherein, potentiometer is linear potentiometer and comprises moving part, and moving part is fixedly connected with pull bar, and that with electricity when the pull bar rectilinear motion, adjusts that unit obtains moving part and potentiometer adjusts the resistance value between one end that unit is electrically connected to electricity.
Wherein, electricity adjusts unit and potentiometer to be realized and being electrically connected to by APS cable.
Wherein, adjusting device also comprises the second tooth bar being fixedly connected with the other end of pull bar, and pull bar passes through the second tooth bar by its motion transmission to the second transmission mechanism.
Wherein, the second transmission mechanism comprises the 4th gear, and phase shifter comprises the 3rd tooth bar, and the 4th gear is stepped gear, comprises the pinion section with the second tooth bar engagement, and with the gear wheel section of the 3rd tooth bar engagement.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of antenna is provided, comprises the adjusting device of above-mentioned antenna lower decline angle.
The invention has the beneficial effects as follows: the adjusting device of antenna lower decline angle of the present invention, compared with prior art, potentiometer directly with pull bar mechanical connection, the intermediate transmission part that the second transmission mechanism is connected with potentiometer without setting, structure is more simple.Simultaneously, due to the driving error that has reduced drive mechanism between pull bar and potentiometer and intermediate transmission part and produce, therefore the resistance value that potentiometer records is more accurate, thereby make electricity adjust unit can the anglec of rotation of self be done more accurately and be controlled according to the more accurate resistance value of obtaining, the degree of regulation of antenna lower decline angle be also more accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of adjusting device of the antenna lower decline angle of first embodiment of the invention;
Fig. 2 is the structure enlarged drawing that electricity shown in Fig. 1 is adjusted the preferred embodiment of unit and the cooperation of the first transmission mechanism;
Fig. 3 is the cut-away view of the preferred embodiment of phase shifter shown in Fig. 1 and the cooperation of the second transmission mechanism.
Embodiment
For making object of the present invention, technical scheme and technique effect clearer, below in conjunction with 1～3 pair of embodiments of the invention of accompanying drawing, make detailed description further.
Fig. 1 is the structural representation of adjusting device of the antenna lower decline angle of first embodiment of the invention.As shown in Figure 1, the adjusting device of the present embodiment comprises: electricity is adjusted unit 11, the first transmission mechanism 12, pull bar 13, potentiometer 14, phase shifter 15, horizontal support 16, the second transmission mechanism 17, end plate 18 and scale 19.
Wherein, electricity adjusts unit 11 to be electrically connected to potentiometer 14, and in practical application scene, the present embodiment preferably passes through APS(Active Pro-Safety, disposition between the two) cable L realizes electrical connection.Electricity is adjusted the input mechanical connection of unit 11 and the first transmission mechanism 12, the output of the first transmission mechanism 12 is connected with one end of pull bar 13, to pass through pull bar 13 and potentiometer 14 mechanical connections, the first transmission mechanism 12 is by the other end of pull bar 13 and the input mechanical connection of the second transmission mechanism 17 simultaneously, the output of the second transmission mechanism 17 is connected with the phase shifter 15 of adjustable antenna lower decline angle, the rectilinear motion of pull bar 13 is driven to phase shifter 15, with this, realize the first transmission mechanism 12 by pull bar 13 transmission the second transmission mechanisms 17, the second transmission mechanism 17 transmission phase shifters 15, thereby realize the first transmission mechanism 12 by the mechanical connection of pull bar 13 and phase shifter 15.
Potentiometer 14 is linear potentiometer, it comprises moving part 141 and fixed part 142, moving part 141 is fixedly connected with pull bar 13 by modes such as pins, with moving part 141 when pull bar 13 rectilinear motion, can on fixed part 142, along pull bar 13 place directions, do straight line back and forth movement.It should be noted that, potentiometer 14 also can be rotating potentiometer in other embodiments, only need meet on its base plate that is arranged at antenna 20 and by pull bar 13 direct-drives.
End plate 18 is arranged at one end of the base plate 20 of antenna, and scale 19 exposes through end plate 18, and on scale 19, is provided with for indicating the graduation mark of antenna lower decline angle, thus allow user from end plate 18 outsides by pulling scale 19 to regulate antenna lower decline angle.In concrete application scenarios, pull for the convenience of the user scale 19, one end that the preferred scale 19 of the present embodiment exposes through end plate 18 is provided with draw ring 191.
Fig. 2 is the structure enlarged drawing that electricity shown in Fig. 1 is adjusted the preferred embodiment of unit 11 and the first transmission mechanism 12 cooperations.Shown in Fig. 1 and Fig. 2, electricity adjusts unit 11 to comprise motor 111 and the first gear 113, the first transmission mechanisms 12 of being arranged on the output shaft 112 of motor 111 comprise the first bearing 121, the second bearing 122, power transmission shaft 123, the second gear 124, the 3rd gear 125 and the first tooth bar 126.
Wherein, motor 111 is fixed on horizontal support 16, and output shaft 112 wears and is fixed in horizontal support 16, so that the output shaft 112 of horizontal support 16 support motor 111.The second gear 124 and the 3rd gear 125 are fixed on power transmission shaft 123, and the second gear 124 and the first gear 113 intermeshing.Power transmission shaft 123 is vertical with output shaft 112, and rotational support is on the first bearing 121 and the second bearing 122, and with horizontal support 16 parallel interval settings, perpendicular with the first tooth bar 126.The first tooth bar 126 is arranged in through hole 161, and intermeshing with the 3rd gear 125, one end of the first tooth bar 126 is connected with pull bar 13 simultaneously, the rectilinear motion of the first transmission mechanism 12 outputs is driven to the other end of pull bar 13, the first tooth bars 126, is connected with one end of scale 19.
In the present embodiment, preferably the second gear 124, the 3rd gear 125 and power transmission shaft 123 are one-body molded.Certainly, in other embodiments, three can be separate molding structure.In addition, those skilled in the art can carry out other settings to the first drive mechanism 12 according to actual needs, the first bearing 121 is for example only set, and the second bearing 122 is not set, accordingly, half of power transmission shaft 123 shown in Fig. 2 and the 3rd gear 125 is only set, now needs power transmission shaft 123 to there is higher rigidity, to guarantee that one end that when rotating power transmission shaft 123 is provided with the 3rd gear 125 can not have a down dip towards the base plate 20 of antenna.Further, those skilled in the art can also the first tooth bar 126 be symmetrical, on the power transmission shaft 123 of the second bearing 122 1 sides, arrange and the identical gear of the second gear 124, arrange accordingly with electricity and adjust the identical electricity of structure of unit 11 to adjust unit.
Fig. 3 is the cut-away view of the preferred embodiment of phase shifter shown in Fig. 1 15 and the second transmission mechanism 17 cooperations.Shown in Fig. 1 and Fig. 3, the adjusting device of the present embodiment also comprises the second tooth bar 151, and phase shifter 15 comprises the 3rd tooth bar (not shown), and the second transmission mechanism 17 comprises the 4th gear 171, the 4th gear 171 is stepped gear, comprises pinion section 171a and gear wheel section 171b.
Wherein, the second tooth bar 151 is connected with the other end of pull bar 13, to do rectilinear motion under the transmission at pull bar 13.The pinion section 171a of the 4th gear 171 and the second tooth bar 151 engagements, and the gear wheel section 171b of the 4th gear 171 and the engagement of the 3rd tooth bar, with this, realize the second tooth bar 151 drive pinion section 171a, the gear wheel section 171b that pinion section 171a transmission is coaxial with it, gear wheel section 171b transmission the 3rd tooth bar, and by the move media of the 3rd tooth bar and phase shifter 15 inside, the angle of declination of antenna is regulated.
Below in conjunction with said structure, introduce operation principle and the process of adjusting device of the present invention:
When antenna lower decline angle is regulated, electricity adjusts unit 11 according to the control command starter motor 111 receiving, to pass through output shaft 112 transmission the first gears 113, first gear 113 transmission the second gears 124, the second gear 124 drives power transmission shaft 123 to rotate, with this transmission the 3rd gear 125, the 3rd gear 125 transmission the first tooth bars 126 are done rectilinear motion, thereby realizing the first transmission mechanism 12 adjusts rotatablely moving of unit 11 to be converted into rectilinear motion electricity, and by pull bar 13 transmission the second transmission mechanisms 17, the second transmission mechanism 17 transmission phase shifters 15, by phase shifter 15, change the lower decline angle of connected antenna, in this process, electricity adjusts unit 11 to be synchronized with the movement by pull bar 13 transmission potentiometers 14 and phase shifter 15.
In the straight-line while of pull bar 13, electricity adjust unit 11 by with being electrically connected to of potentiometer 14, obtain the resistance value of potentiometer 14, and regulate electricity to adjust the anglec of rotation of unit 11 control the first gears 113 according to the relation of resistance value and antenna lower decline angle.Particularly:
Please again consult Fig. 1 and Fig. 2, when the moving part 141 of potentiometer 14 moves under the transmission of pull bar 13, electricity adjusts unit 11 to apply changeless voltage to potentiometer 14, when electric current flows through potentiometer 14, by APS cable L, the voltage changing with the change in location of moving part 141 can be detected, due to the consumption of 14 pairs of voltages of potentiometer, the therefore voltage of actual output and the resistance value ratio that is not in line, but according to the variation that is similar to hyperbola rule.Now, the voltage of output is carried out to the processing of analog-to-digital conversion process control calculation procedure, can make the voltage of actual output and property that resistance value is reduced to straight line rule change, that is to say, if the resistance value between one end being electrically connected to electricity tune unit 11 of moving part 141 and potentiometer 14 changes from R1 to R2, the lower decline angle of phase shifter 15 changes from 0 to N degree, corresponding resistance value when k*(R2-R1 so)/N is exactly 1 ° of the every variation of lower decline angle, wherein k is proportionality coefficient, and it is for controlling calculation procedure by the known constant calculating.
It should be noted that, adjusting device of the present invention is not only applicable to above-mentioned electric mode transfer formula, is also applicable to the adjusting to antenna lower decline angle by manual adjustments Pattern completion, particularly:
User can or promote scale 19 by draw ring 191 direct pulls, to provide power directly to drive the first tooth bar 126 to do rectilinear motion, and by pull bar 13 transmission the second transmission mechanisms 17, the second transmission mechanism 17 transmission phase shifters 15, change the lower decline angle of connected antenna by phase shifter 15.If scale 19 is drawn to the assigned address that predetermined antenna lower decline angle is corresponding (graduation mark), now phase shifter 15 synchronizing movings are to its corresponding position, the moving part 141 of potentiometer 14 also can move to its corresponding position, electricity adjusts unit 11 can obtain the resistance value of potentiometer 14 by APS cable, thereby whether the reading of angle and the angle of actual electrical angle of declination that judge the antenna lower decline angle that scale 19 shows according to this resistance value be consistent, if consistent explanation is successfully completed the adjusting to antenna lower decline angle.
In sum, adjusting device of the present invention mainly adjusts rotatablely moving of unit 11 to be converted into rectilinear motion electricity by the first transmission mechanism 12, and be synchronized with the movement by pull bar 13 transmission potentiometers 14 and phase shifter 15, to change antenna lower decline angle by phase shifter 15, by electricity, adjust being electrically connected to of unit 11 and potentiometer 14 simultaneously, obtain the resistance value of potentiometer 14, and regulate electricity to adjust the anglec of rotation of unit 11 according to the relation of resistance value and antenna lower decline angle, thereby realize the adjusting to antenna lower decline angle.
Be compared to prior art, potentiometer 14 of the present invention is installed on the base plate 20 of antenna, rather than the drive mechanism that is installed on transmission phase shifter 15 (, the second transmission mechanism 17) on, and potentiometer 14 is directly by pull bar 13 transmissions, do not need prior art take and phase shifter 15 and the second transmission mechanism 17 between three gears arranging, between pull bar 13 and the second transmission mechanism 17, be directly connected simultaneously, do not adopt intermediate transmission part, therefore when regulating, can avoid intermediate transmission part and the driving error between pull bar 13 and the second transmission mechanism 17 and the driving error between three gears of prior art, the resistance value that potentiometer 14 is recorded is more accurate, thereby make electricity adjust unit 11 according to the more accurate resistance value of the potentiometer 14 obtaining, the anglec of rotation of self to be done more accurately and controlled, improved the degree of regulation of antenna lower decline angle.In actual applications, can reach ± 0.1 degree of the degree of regulation of the adjusting device of antenna lower decline angle of the present invention, the prior art of comparing ± 0.5 degree, precision improves greatly.
In addition, adjusting device of the present invention is when manual adjustments pattern, user's direct pull scale 19, without adjusting screw(rod) of the prior art, not only reduced the quantity of the parts of adjusting device, and the pull bar being originally connected with adjusting screw(rod) can make vertical bar shape, structure is simpler, thereby makes the cost of adjusting device lower.
The present invention also provides a kind of antenna, and this antenna comprises the adjusting device of above-described embodiment, so this antenna can reach the beneficial effect identical with above-mentioned adjusting device.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; the mutually combining of technical characterictic between each embodiment for example; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an adjusting device for antenna lower decline angle, is characterized in that, described adjusting device comprises electricity tune unit, the first transmission mechanism, pull bar, the second transmission mechanism, potentiometer and phase shifter, wherein:
The input of described the first transmission mechanism and described electricity are adjusted unit mechanical connection, and the output of described the first transmission mechanism is connected with one end of pull bar, to adjust rotatablely moving of unit output to be converted into the rectilinear motion of described pull bar described electricity;
The input of described the second transmission mechanism is connected with the other end of described pull bar, and the output of described the second transmission mechanism is connected with the described phase shifter of adjustable described antenna lower decline angle, so that the rectilinear motion of described pull bar is driven to described phase shifter;
Described potentiometer directly with described pull bar mechanical connection, and adjust unit to be electrically connected to described electricity, so that described electricity adjusts unit to obtain the resistance value that described potentiometer records, and regulate described electricity to adjust the anglec of rotation of unit according to the relation of described resistance value and described antenna lower decline angle.
2. adjusting device according to claim 1, it is characterized in that, described electricity is adjusted unit to comprise motor and is arranged at the first gear on the output shaft of described motor, described the first transmission mechanism comprises the power transmission shaft perpendicular to described output shaft, be fixed on the second gear on described power transmission shaft, the 3rd gear and the first tooth bar that is parallel to described output shaft, described the second gear and described the first gear engagement, the power of described motor is introduced to described the first transmission mechanism, one end of described the first tooth bar is connected with described pull bar, described the 3rd gear and described the first tooth bar engagement, so that the rectilinear motion of described the first transmission mechanism output is driven to described pull bar.
3. adjusting device according to claim 2, is characterized in that, described the second gear, described the 3rd gear and described power transmission shaft are one-body molded.
4. adjusting device according to claim 2, it is characterized in that, described adjusting device also comprises that being connected to described electricity adjusts unit shaft to horizontal support and the end plate at two ends, and described horizontal support supports the output shaft of described motor, and is provided with the through hole passing for described the first tooth bar.
5. adjusting device according to claim 4, it is characterized in that, described adjusting device further comprises scale, one end of described scale is connected with the other end of described the first tooth bar, with pull bar described in transmission, do rectilinear motion, the other end of described scale exposes described end plate, is provided with for indicating the graduation mark of described antenna lower decline angle on described scale.
6. adjusting device according to claim 5, it is characterized in that, described potentiometer is linear potentiometer and comprises moving part, described moving part is fixedly connected with described pull bar, and that with electricity described in when the described pull bar rectilinear motion, adjusts that unit obtains described moving part and described potentiometer adjusts the resistance value between one end that unit is electrically connected to described electricity.
7. adjusting device according to claim 7, is characterized in that, described electricity adjusts unit and described potentiometer to be realized and being electrically connected to by APS cable.
8. adjusting device according to claim 1, is characterized in that, described adjusting device also comprises the second tooth bar being fixedly connected with the other end of described pull bar, described pull bar by described the second tooth bar by its motion transmission to described the second transmission mechanism.
9. adjusting device according to claim 8, it is characterized in that, described the second transmission mechanism comprises the 4th gear, described phase shifter comprises the 3rd tooth bar, described the 4th gear is stepped gear, comprise the pinion section with described the second tooth bar engagement, and with the gear wheel section of described the 3rd tooth bar engagement.
10. an antenna, is characterized in that, described antenna comprises the adjusting device of the antenna lower decline angle described in claim 1～9 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752796.1A CN103700944B (en) | 2013-12-31 | 2013-12-31 | A kind of antenna and the adjusting means of lower decline angle thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752796.1A CN103700944B (en) | 2013-12-31 | 2013-12-31 | A kind of antenna and the adjusting means of lower decline angle thereof |
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| CN103700944A true CN103700944A (en) | 2014-04-02 |
| CN103700944B CN103700944B (en) | 2016-08-24 |
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| CN106229684A (en) * | 2016-08-29 | 2016-12-14 | 广东通宇通讯股份有限公司 | A kind of antenna drive device and antenna |
| 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 |
| CN109997275A (en) * | 2016-12-01 | 2019-07-09 | 华为技术有限公司 | Antenna tilt driver |
| CN110462927A (en) * | 2017-03-31 | 2019-11-15 | 华为技术有限公司 | Downtilt regulating device and communication equipment |
| CN112736468A (en) * | 2020-12-29 | 2021-04-30 | 京信通信技术(广州)有限公司 | Phase shifter, phase-shifting transmission system and antenna |
| CN112751198A (en) * | 2020-12-31 | 2021-05-04 | 京信通信技术(广州)有限公司 | Multi-frequency antenna and phase-shifting measuring device thereof |
| CN114156657A (en) * | 2021-12-08 | 2022-03-08 | 中国电信股份有限公司 | Antenna remote adjusting system and adjusting method thereof |
| CN116073583A (en) * | 2023-03-07 | 2023-05-05 | 中兴通讯股份有限公司 | Electric tuning antenna downward inclination angle adjusting device and electric tuning antenna system |
| CN117335150A (en) * | 2023-11-24 | 2024-01-02 | 广东中昱通信有限公司 | 5G antenna |
| WO2024001868A1 (en) * | 2022-06-29 | 2024-01-04 | 中兴通讯股份有限公司 | Phase shifter driving device, remote electrical tilt antenna and system, phase modulation method for phase shifter, and storage medium |
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| CN106229684A (en) * | 2016-08-29 | 2016-12-14 | 广东通宇通讯股份有限公司 | A kind of antenna drive device and antenna |
| CN109997275A (en) * | 2016-12-01 | 2019-07-09 | 华为技术有限公司 | Antenna tilt driver |
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| CN112751198A (en) * | 2020-12-31 | 2021-05-04 | 京信通信技术(广州)有限公司 | Multi-frequency antenna and phase-shifting measuring device thereof |
| CN114156657A (en) * | 2021-12-08 | 2022-03-08 | 中国电信股份有限公司 | Antenna remote adjusting system and adjusting method thereof |
| WO2024001868A1 (en) * | 2022-06-29 | 2024-01-04 | 中兴通讯股份有限公司 | Phase shifter driving device, remote electrical tilt antenna and system, phase modulation method for phase shifter, and storage medium |
| CN116073583A (en) * | 2023-03-07 | 2023-05-05 | 中兴通讯股份有限公司 | Electric tuning antenna downward inclination angle adjusting device and electric tuning antenna system |
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