CN102122758A - Base station antenna with electrically adjustable electrical inclination angle and control method thereof - Google Patents
Base station antenna with electrically adjustable electrical inclination angle and control method thereof Download PDFInfo
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- CN102122758A CN102122758A CN2010106062696A CN201010606269A CN102122758A CN 102122758 A CN102122758 A CN 102122758A CN 2010106062696 A CN2010106062696 A CN 2010106062696A CN 201010606269 A CN201010606269 A CN 201010606269A CN 102122758 A CN102122758 A CN 102122758A
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Abstract
The invention relates to a base station antenna with an electrically adjustable electrical inclination angle, comprising a phase shifter, a screw rod and an antenna control unit, wherein the screw rod drives a sliding sheet in the phase shifter to do rectilinear motion. The antenna control unit comprises a sensor, a control main board and a motor, wherein the motor drives the screw rod to rotate, the control main board is used for recording the current electrical inclination angle of the base station antenna, and the sensor detects the number of turns for the rotation of an output shaft of the motor within a certain angle changing range when the electrical inclination angle of the antenna has a certain change. The invention overcomes the defects of low adjustment precision the electrical inclination angle of the traditional base station antenna, inconvenience for operation and low efficiency, and provides a base station antenna with high adjustment precision, convenience for operation and high efficiency.
Description
Technical field
The present invention relates to a kind of antenna.But be specially a kind of antenna for base station and control method thereof of lower decline angle motorized adjustment.
Background technology
The angle of declination of antenna of mobile communication base station can be realized by regulating phase shifter.The motion mode of the slide plate of the phase shifter inside of adjusting antenna phase generally rotatablely moves and the rectilinear motion dual mode at present.Fig. 1 adopts the schematic diagram of the phase shifter of rectilinear motion mode for slide plate.As shown in the figure, two free ends of the slide plate 6 of this phase shifter insert fixedly in the guide 7, and the described relatively fixedly guide 7 of described slide plate 6 horizontally slips.Described slide plate 6 drives by a pull bar 9 and moves, thereby adjusts the variation of described phase shifter input/output terminal phase place.
Fig. 2 is the schematic diagram of existing antenna for base station, and described antenna for base station comprises an orthoscopic phase shifter, and the protective cover and the end cap of described antenna for base station are not shown.Regulating wheel 5 drive screws 1, screw rod 1 and slide block 2 are threaded, and slide block 2 is connected with the pull bar 9 of phase shifter slide plate by a connector 3.Elongated slot and connector 3 that scale 4 passes on the antenna-reflected plate 8 are fixing.Scale 4 passes antenna installation panel 10 and the antenna end cap is stretched.Screw rod 1 supports also axial limiting by antenna installation panel 10, makes 1 of screw rod rotate and can not move axially.Therefore as long as rotation regulating wheel 5 just can drive pull bar 9 and move, its distance that moves just can reflect by the length that scale 4 stretches out the antenna end cap.For this structure, the distance that moves of the distance that scale 4 moves and pull bar 9 and phase shifter slide plate is identical.
Owing to be manual the adjusting, and rely on operator's range estimation to read to determine the displacement of regulating, therefore unavoidably can produce error, cause the precision of regulating low.Simultaneously, adopt this structure that the angle of declination of antenna is regulated, need operator's manual operation regulating wheel 5, so the operator must go to that antenna is other just can be operated, therefore operate very inconvenience and efficient low.
Summary of the invention
The lower decline angle degree of regulation that the technical problem that the present invention solves is to overcome existing antenna for base station is low, operation inconvenience and inefficient shortcoming, but the antenna for base station of a kind of lower decline angle degree of regulation height, the easy to operate and lower decline angle motorized adjustment that efficient is high is provided.
But the antenna for base station of lower decline angle motorized adjustment provided by the invention, comprise phase shifter, drive straight-line screw rod of slide plate and antenna control unit in the described phase shifter, described antenna control unit comprises the motor that the described screw rod of transducer, control main board and driving rotates, described control main board is used to write down the current lower decline angle of described antenna for base station, when the lower decline angle of described antenna changes a certain angle, the rotating cycle of the output shaft of the described motor of described sensor in this angle excursion.
As preferably, the output shaft of described motor directly is connected with described screw rod.
As preferably, the end of the output shaft of described motor is six prisms, and the end of described screw rod has the interior hexagonal hole that matches with described six prisms, and cooperation prismatic and described interior hexagonal hole is connected the output shaft of described motor by described six with described screw rod.
As preferably, described screw rod is provided with two terminal backstops and is arranged at slide block between the described terminal backstop, thereby the rotation of described screw rod drives described slide block and moves the slide plate rectilinear motion that drives in the described phase shifter along the axis of described screw rod, and described terminal backstop is used to limit the displacement of described slide block.
As further preferred, the position of described terminal backstop can be regulated along the axis of described screw rod according to the specification of described antenna for base station.
As further preferred, when described antenna is high frequency antenna, the position of regulating described terminal backstop diminishes the distance between the described terminal backstop, and when described antenna was low-frequency antenna, the position of regulating described terminal backstop made the distance between the described terminal backstop become big.
As preferably, described transducer is an electromagnetic sensor.
As preferably, described antenna for base station also comprises remote control, and described control main board is connected with the control signal interface, and described control signal interface is connected with described remote control by cable.
The present invention also provides a kind of control method of aforesaid antenna for base station, may further comprise the steps:
(1) described screw rod drives the interior slide plate of described phase shifter and moves range;
(2) output shaft of the described motor of the described sensor maximum number of turns of in described range, rotating;
(3) according to the maximum number of turns that the angle of angle of declination during slide plate moves range changes and described sensor arrives of described antenna, the output shaft that calculates described motor whenever revolves the number of degrees that the described Downtilt that turns around on average changes;
(4) slide plate stroke initiating terminal angle of declination that writes down in angle of declination of adjusting to according to described antenna needs and the described control main board and stroke finish difference between the end angle of declination and the output shaft of described motor whenever revolves the average number of degrees that change that turn around, and calculate the number of turns that the output shaft of described motor need rotate;
(5) angle of declination that needs is adjusted to described antenna in the rotation of the described motor output shaft of control.
But the antenna for base station of lower decline angle motorized adjustment of the present invention and control method thereof are compared with prior art, have following beneficial effect:
Thereby the rotating cycle that 1, adopts the sensor motor is determined the displacement of phase shifter, compares with the device of the shift value that adopts manual adjustment and the definite phase shifter of range estimation, and antenna for base station of the present invention has improved the precision of regulating greatly.
3, the terminal backstop of the displacement that is used for limiting described slide block is set at the two ends of described screw rod respectively, and when being applicable to different antennas, can regulates the position of terminal backstop according to the actual needs, make antenna for base station of the present invention applicable to different antennas.When breaking down, before regulating, the angle of declination of antenna need be transferred to maximum or minimum value next time, can realize by making slider row to terminal backstop.
4, described transducer is an electromagnetic sensor, does not directly contact with the rotating shaft of described motor, compares precision height and long service life with the machinery or the fine motion transducer of contact.
5, control main board also can be connected with the control signal interface, and described control signal interface is connected with remote control by control cable.The operator does not need to walk to operate to antenna is other, only needs order input remote control, i.e. and the angle of declination of scalable antenna, so easy to operate and improved efficient greatly.
6, the end cap of motor adopts screw to be connected with the antenna end plate, compares with the connected mode of bolt slide block, and the screw connection takes up room less, can reserve bigger space and mount and dismount operation, thereby make dismounting more convenient.
Description of drawings
Fig. 1 adopts the schematic diagram of the phase shifter of rectilinear motion mode for slide plate;
But Fig. 2 is the structural representation of part of the antenna for base station of existing lower decline angle motorized adjustment;
Fig. 3 is the Principle of Antenna schematic diagram;
But Fig. 4 is the cutaway view of part-structure of the antenna for base station of the lower decline angle motorized adjustment in the embodiment of the invention;
Fig. 5 is the enlarged diagram of A part among Fig. 4;
But Fig. 6 is the structural representation of handheld control unit of the antenna for base station of the lower decline angle motorized adjustment in the embodiment of the invention;
But Fig. 7 removes exploded perspective view after the control main board for the handheld control unit of the antenna for base station of the lower decline angle motorized adjustment in the embodiment of the invention.
Embodiment
Fig. 3 is the Principle of Antenna schematic diagram.As shown in Figure 3, electrical tilt antenna has a plurality of radiating doublets unit, thereby change the radiation direction of antenna beam by the angle of declination that the phase difference that changes described oscillator unit 11 can change antenna, the position of adjusting the slide plate of phase shifter promptly is the method for well-known change angle of declination.
But Fig. 4 is the cutaway view of the antenna for base station of lower decline angle motorized adjustment of the present invention, Fig. 5 is the enlarged diagram of A part among Fig. 4, but Fig. 6 is the structural representation of handheld control unit of the antenna for base station of the lower decline angle motorized adjustment in the embodiment of the invention, but Fig. 7 removes exploded perspective view after the control main board 46 for the handheld control unit of the antenna for base station of the lower decline angle motorized adjustment in the embodiment of the invention.As Fig. 3 to shown in Figure 7, but the antenna for base station of lower decline angle motorized adjustment provided by the invention comprises phase shifter, screw rod 24, the driving block 27 and the antenna control unit that match with screw rod 24.Described driving block 27 is connected with slide plate in the described phase shifter by connector and pull bar, thereby the slide plate that described screw rod 24 can be driven in the described phase shifter is done rectilinear motion.
Described handheld control unit comprises described screw rod 24 motor rotating 23 of driving, transducer 41, control main board 46, upper end cover 34 and bottom end cover 42.Described control main board 46 electrically connects with described motor 23, and described control main board 46 receives and handles described transducer 41 and transmits signal and can give an order to described motor 23, writes down the current lower decline angle of described antenna for base station simultaneously.The operator only need operate the angle of declination that control main board 46 can change antenna.When the lower decline angle of described antenna changed a certain angle, described transducer 41 detected the rotating cycle of output shaft in this angle excursion of described motor 23.In the present embodiment, described motor 23 is fixed in the upper end cover 34 of described handheld control unit, and described upper end cover 34 fixes with the end plate of described antenna, the axial motion of described antenna end plate and the described motor 23 of upper end cover 34 restrictions.In the present embodiment, described transducer 41 is an electromagnetic sensor, and described electromagnetic sensor 41 does not directly contact with the rotating shaft of described motor, compares precision height and long service life with the machinery or the fine motion transducer of contact.
Because antenna is of different sizes and specification, for example high frequency antenna and low-frequency antenna, the maximum angle of declination difference of different antennas.Therefore, before using this antenna for base station, need to determine earlier that the output shaft of motor whenever revolves the changing value of the angle of declination of the corresponding antenna that turns around.Be specially: adopt transducer 41 to detect the output shaft rotating cycle n of described driving block 27 from an end of screw rod 24 described motor 23 during the stroke of the other end.Promptly detect the rotating cycle n that described screw rod 24 drives the output shaft of described motor 23 in the distance that slide plate in the described phase shifter moves range with transducer 41.The output shaft of described motor 23 whenever turns around, electromagnetic sensor 41 outputs and the fixing pulse of record, according to the changing value β of antenna for base station lower decline angle in the trip, promptly maximum angle of declination, when drawing the moving circle of the output shaft revolution of motor, the changing value of antenna for base station lower decline angle is β/n.Angle and the β/n value adjusted according to current needs can draw the rotating cycle of the output shaft of needed motor 23.For example: when the angle of declination of current antenna is α, this angle of declination α value record is in described control main board 46, adjust angle of declination if desired to γ, the number of turns that then described motor 23 needs to rotate is (* β/the n of γ-α), wherein, if γ-α is being for just, then described motor 23 is rotated in the forward, if γ-α is for bearing then described motor 23 reverse rotations.After the angle of declination of described antenna is adjusted, the angle of declination value of the current antenna of described control main board 46 records.This shows.The operator makes motor 23 rotate the rotating cycle that needs, then the antenna for base station lower decline angle promptly can be adjusted the angle that needs, compare with the device of the shift value that adopts manual adjustment and the definite phase shifter of range estimation, antenna for base station of the present invention has improved the precision and the efficient of regulating greatly.
In the above-described embodiments, the end of the output shaft of described motor 23 is six prisms 47, the end that described screw rod 24 matches with described motor 23 is interior hexagonal hole, the output shaft of described motor 23 is connected with described interior hexagonal hole cooperation by described six prismatic 47 with described screw rod 24, thereby realize that described motor 23 directly drives described screw rod 24 and rotates synchronously, and do not need other transmission or arrangement of clutch, and avoided the error that produces in the transmission process, improved the degree of regulation of lower decline angle.The output shaft of motor 23 drives 24 rotations of described screw rod, does axial motion because motor 23 must not limit by upper end cover 34 and antenna end plate, so driving block 27 the moving axially at the described screw rod described screw rod 24 in 24 upper edges of matching with described screw rod 24.The slide plate of the phase shifter that links together with described driving block 27 also moves axially along described screw rod 24 along with driving block 27, thereby makes the phase difference 11 of radiating doublet unit 12 change, and the angle of declination of antenna also changes thereupon.
In the above-described embodiments, also can be connected between the output shaft of described motor 23 and the described screw rod 24, not need other transmission or clutch as long as realize the output shaft of described motor 23 directly to drive the rotation synchronously of described screw rod 24 by key or other conventional connected mode.
Near the terminal backstop 26 that the displacement that is used for limiting described driving block 27 in the above-described embodiments, can be the both ends of described screw rod 24 be set respectively.In the present embodiment, described screw rod 24 is provided with the hole perpendicular to the axis of described screw rod 24, and described terminal backstop 26 is one to be located in the pin in the described hole.Described terminal backstop 26 also can be other and is fixed on parts on the described screw rod 24.When described driving block 27 is positioned at terminal backstop 26 near described motor 23 1 ends, the angle of declination maximum of described antenna, when described driving block 27 is positioned at terminal backstop 26 away from described motor 23 1 ends, the angle of declination minimum of described antenna.When the output shaft of determining motor 23 whenever revolved the changing value of angle of declination of the corresponding antenna that turns around, described driving block 27 need not covered the whole process of screw rod 24, only needs walk to another terminal backstop 26 from a terminal backstop 26.
The position of described terminal backstop 26 can be regulated along the axis of described screw rod 24, antenna for different size and specification, for example, when described antenna is high frequency antenna, the position of regulating described terminal backstop 26 diminishes two distances between the described terminal backstop 26, when described antenna was low-frequency antenna, the position of regulating described terminal backstop 26 made the distance between two described terminal backstops 26 become big.When described antenna for base station breaks down, as when having a power failure, the angle of declination loss of data of the current antenna that described control main board 46 is write down, before the angle of declination of antenna is regulated next time, need the angle of declination of antenna to transfer to maximum or minimum value, this step can realize by making driving block 27 move to terminal backstop 26.
In the above-described embodiments, described transducer 41 also can be photoelectric sensor 41 and waits other non-contacting position transducer 41.
In the above-described embodiments, described control main board 46 also can be connected with the control signal interface, in the present embodiment for being located at female connector 43 and the male connector 44 that is connected with described control main board 46 on the bottom end cover 42.Described control signal interface meets AISG or 3GPP or custom protocol.Described antenna for base station also comprises remote control, and described control signal interface is connected with described remote control by control cable.The operator does not need to walk to operate to antenna is other, only needs order input remote control, i.e. and the angle of declination of scalable antenna, so easy to operate and improved efficient greatly.In the above-described embodiments, also can carry out Long-distance Control to control main board 46 by existing wireless remote control technology.
In the above-described embodiments, described upper end cover 34 fixes by screw 21 end plate with described antenna, and described screw 21 passes the screw of the end plate of the screw of described upper end cover 34 and described antenna successively.Because multifrequency antenna will connect a plurality of motors simultaneously, and the area of the end plate of antenna is limited, compares with the connected mode of bolt driving block 27, and screw 21 connections take up room less, can reserve bigger space and mount and dismount operation, thereby make dismounting more convenient.
Above embodiment is an exemplary embodiment of the present invention only, is not used in restriction the present invention, and protection scope of the present invention is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the present invention in essence of the present invention and protection range, this modification or be equal to replacement and also should be considered as dropping in protection scope of the present invention.
Claims (9)
1. but the antenna for base station of a lower decline angle motorized adjustment, comprise phase shifter, drive straight-line screw rod of slide plate and antenna control unit in the described phase shifter, it is characterized in that: described antenna control unit comprises the motor that the described screw rod of transducer, control main board and driving rotates, described control main board is used to write down the current lower decline angle of described antenna for base station, when the lower decline angle of described antenna changes a certain angle, the rotating cycle of the output shaft of the described motor of described sensor in this angle excursion.
2. antenna for base station according to claim 1 is characterized in that: the output shaft of described motor directly is connected with described screw rod.
3. antenna for base station according to claim 1, it is characterized in that: the end of the output shaft of described motor is six prisms, the end of described screw rod has the interior hexagonal hole that matches with described six prisms, and cooperation prismatic and described interior hexagonal hole is connected the output shaft of described motor by described six with described screw rod.
4. antenna for base station according to claim 1, it is characterized in that: described screw rod is provided with two terminal backstops and is arranged at slide block between the described terminal backstop, thereby the rotation of described screw rod drives described slide block and moves the slide plate rectilinear motion that drives in the described phase shifter along the axis of described screw rod, and described terminal backstop is used to limit the displacement of described slide block.
5. antenna for base station according to claim 4 is characterized in that: the position of described terminal backstop can be regulated along the axis of described screw rod according to the specification of described antenna for base station.
6. antenna for base station according to claim 5, it is characterized in that: when described antenna is high frequency antenna, the position of regulating described terminal backstop diminishes the distance between the described terminal backstop, when described antenna was low-frequency antenna, the position of regulating described terminal backstop made the distance between the described terminal backstop become big.
7. antenna for base station according to claim 1 is characterized in that: described transducer is an electromagnetic sensor.
8. antenna for base station according to claim 1 is characterized in that: described antenna for base station also comprises remote control, and described control main board is connected with the control signal interface, and described control signal interface is connected with described remote control by cable.
9. as the control method of any described antenna for base station in the claim 1 to 8, it is characterized in that, may further comprise the steps:
(1) described screw rod drives the interior slide plate of described phase shifter and moves range;
(2) output shaft of the described motor of the described sensor maximum number of turns of in described range, rotating;
(3) according to the maximum number of turns that the angle of angle of declination during slide plate moves range changes and described sensor arrives of described antenna, the output shaft that calculates described motor whenever revolves the number of degrees that the described Downtilt that turns around on average changes;
(4) slide plate stroke initiating terminal angle of declination that writes down in angle of declination of adjusting to according to described antenna needs and the described control main board and stroke finish difference between the end angle of declination and the output shaft of described motor whenever revolves the average number of degrees that change that turn around, and calculate the number of turns that the output shaft of described motor need rotate;
(5) angle of declination that needs is adjusted to described antenna in the rotation of the described motor output shaft of control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106062696A CN102122758A (en) | 2010-12-24 | 2010-12-24 | Base station antenna with electrically adjustable electrical inclination angle and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106062696A CN102122758A (en) | 2010-12-24 | 2010-12-24 | Base station antenna with electrically adjustable electrical inclination angle and control method thereof |
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| CN102122758A true CN102122758A (en) | 2011-07-13 |
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| CN2010106062696A Pending CN102122758A (en) | 2010-12-24 | 2010-12-24 | Base station antenna with electrically adjustable electrical inclination angle and control method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8890756B2 (en) | 2011-12-30 | 2014-11-18 | Gemintek Corporation | Multi-point driving device for general purpose base station antenna |
| WO2015070380A1 (en) * | 2013-11-12 | 2015-05-21 | Alcatel-Lucent Shanghai Bell Co., Ltd. | Methods and devices for reducing passive intermodulation in rf antennas |
| CN105514609A (en) * | 2015-02-14 | 2016-04-20 | 广东通宇通讯股份有限公司 | Transmission module, transmission system and base station antenna |
| CN105953722A (en) * | 2016-07-01 | 2016-09-21 | 京信通信技术(广州)有限公司 | Downward inclination angle electronic display device |
| CN106207464A (en) * | 2016-06-24 | 2016-12-07 | 广东博纬通信科技有限公司 | A kind of modularity antenna phase displacement-type adjusting means |
| CN106602266A (en) * | 2016-12-14 | 2017-04-26 | 湖北日海通讯技术有限公司 | Electric adjustment method and device for mobile communication smart antenna |
| CN109037950A (en) * | 2017-06-09 | 2018-12-18 | 康普技术有限责任公司 | The stop part and correlation technique of actuator for phase shifter |
| CN109244670A (en) * | 2018-09-14 | 2019-01-18 | 武汉虹信通信技术有限责任公司 | A kind of electrical tilt antenna transmission selection switching device |
| CN109768391A (en) * | 2018-12-29 | 2019-05-17 | 京信通信技术(广州)有限公司 | Antenna, the display system of antenna lower decline angle and its transmission mechanism |
| CN111224211A (en) * | 2020-01-10 | 2020-06-02 | 四川豪威尔信息科技有限公司 | Elevation angle regulating mechanism for 5G base station antenna |
| CN117335150A (en) * | 2023-11-24 | 2024-01-02 | 广东中昱通信有限公司 | 5G antenna |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8890756B2 (en) | 2011-12-30 | 2014-11-18 | Gemintek Corporation | Multi-point driving device for general purpose base station antenna |
| WO2015070380A1 (en) * | 2013-11-12 | 2015-05-21 | Alcatel-Lucent Shanghai Bell Co., Ltd. | Methods and devices for reducing passive intermodulation in rf antennas |
| CN105514609A (en) * | 2015-02-14 | 2016-04-20 | 广东通宇通讯股份有限公司 | Transmission module, transmission system and base station antenna |
| CN105514609B (en) * | 2015-02-14 | 2018-07-13 | 广东通宇通讯股份有限公司 | Transmission module, transmission system and antenna for base station |
| CN106207464B (en) * | 2016-06-24 | 2019-04-23 | 广东博纬通信科技有限公司 | A kind of modularization antenna phase displacement-type regulating device |
| CN106207464A (en) * | 2016-06-24 | 2016-12-07 | 广东博纬通信科技有限公司 | A kind of modularity antenna phase displacement-type adjusting means |
| CN105953722A (en) * | 2016-07-01 | 2016-09-21 | 京信通信技术(广州)有限公司 | Downward inclination angle electronic display device |
| CN105953722B (en) * | 2016-07-01 | 2019-01-22 | 京信通信技术(广州)有限公司 | Angle of declination electronic display unit |
| CN106602266A (en) * | 2016-12-14 | 2017-04-26 | 湖北日海通讯技术有限公司 | Electric adjustment method and device for mobile communication smart antenna |
| CN109037950A (en) * | 2017-06-09 | 2018-12-18 | 康普技术有限责任公司 | The stop part and correlation technique of actuator for phase shifter |
| CN109244670A (en) * | 2018-09-14 | 2019-01-18 | 武汉虹信通信技术有限责任公司 | A kind of electrical tilt antenna transmission selection switching device |
| WO2020052181A1 (en) * | 2018-09-14 | 2020-03-19 | 武汉虹信通信技术有限责任公司 | Transmission, selection, and switching device for electrical tilt antenna |
| CN109768391A (en) * | 2018-12-29 | 2019-05-17 | 京信通信技术(广州)有限公司 | Antenna, the display system of antenna lower decline angle and its transmission mechanism |
| CN111224211A (en) * | 2020-01-10 | 2020-06-02 | 四川豪威尔信息科技有限公司 | Elevation angle regulating mechanism for 5G base station antenna |
| CN117335150A (en) * | 2023-11-24 | 2024-01-02 | 广东中昱通信有限公司 | 5G antenna |
| CN117335150B (en) * | 2023-11-24 | 2024-05-10 | 广东中昱通信有限公司 | 5G antenna |
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