CN207587956U - A kind of feed array mounting bracket - Google Patents
A kind of feed array mounting bracket Download PDFInfo
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- CN207587956U CN207587956U CN201721843851.8U CN201721843851U CN207587956U CN 207587956 U CN207587956 U CN 207587956U CN 201721843851 U CN201721843851 U CN 201721843851U CN 207587956 U CN207587956 U CN 207587956U
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- feed array
- positioning region
- mounting bracket
- subreflector
- fixed
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Abstract
The utility model discloses a kind of feed array mounting brackets, it is used for the primary reflection surface that feed array is mounted on to primary reflector, and secondary reflecting element is also mounted on to the overhead of feed array, the subreflector of secondary reflecting element is made to be parallel to feed array, and the center of subreflector and the center of feed array are located along the same line, and feed array is located at the focal point of primary reflection surface.Feed array mounting bracket includes：Erect the column for the circle centre position for being fixed on primary reflection surface in one end；It is fixed on the slot of the focal point on the other end of column and positioned at primary reflection surface；Be welded on subreflector and using the center of subreflector as the center of circle multiple positioning regions one of annular layout；Be welded on the bottom surface of slot and using the center of feed array as the center of circle multiple positioning regions two of annular layout；One end is fixed therein on a positioning region one and opposite other end is fixed therein multiple supporting rods on a positioning region two.Feed array is mounted on slot.
Description
Technical field
The utility model is related to microwave communication, star ground a kind of stent in communication in moving field more particularly to a kind of feed battle arrays
Row mounting bracket.
Background technology
It is the antenna that critical piece forms by metal mirror and feed, mainly includes single reflection surface antenna and double-reflecting face
Two major class of antenna, this is based on antenna form derived from optical principle, is widely used in microwave and the shorter wave band of wavelength.Second
A variety of single reflection surface antennas start largely to use before and after world war, occur to the sixties using Cassegrain antenna as representative
Dual reflector antenna.They have become most common a kind of microwave and millimeter wave high-gain aerial, are widely used in communication, thunder
Reach, radionavigation, electronic countermeasure, telemetering, the technical fields such as radio astronomy and meteorology.By taking satellite communication as an example, due to gain
High and simple in structure, reflector antenna is the principal antenna form of communication satellite earth station；Since extensible folding umbrella can be made
Shape structure, it is the citation form of spaceship and satellite antenna again.So far diversified reflecting surface shape has not only been produced
Formula meets different needs, while a variety of feed structures of function admirable also occur.
Communication in moving is the abbreviation of " ground satellite station communication system on the move ".Star " communication in moving " be to meet user
The new opplication that the demand of broadband video information generates is transmitted in dynamic mobile by satellite, uses the Ku frequencies of trapped orbit satellite
Duan Jinhang mobile communication transmission wide-band-messages are a kind of emerging service applications.Pass through communication in moving system, vehicle, steamer, aircraft etc.
Mobile carrier during the motion can the platforms such as real-time tracking satellite, transmit the multimedias such as voice, data, image incessantly
Information can meet the needs of various military-civil emergency communications and the multimedia communication under mobile condition.
At present, " communication in moving " system is mainly communicated using Ku wave bands with trapped orbit satellite.According to 2014 national
Publication《The static middle onboard satellite communication earth station generic specifications used of Ku frequency ranges》、《Ku frequency range portable satellites lead to
Believe earth station generic specifications》Wait documentation requirements, Ku wave bands " communication in moving " system need to by application subsystem, power subsystem,
The compositions such as channel subsystem, antenna and its control system.Antenna system need to cover uplink/downlink frequency range simultaneously, wherein upper line frequency
Section is 13.75~14.5GHz, 10.95~11.75GHz of band downlink, 12.25~12.75GHz, the pole of uplink and downlink frequency range
Turn to two orthogonal linear polarizations.To ensure communication smooth between satellite and earth moving equipment, system antenna need to be directed toward logical in real time
Believe satellite.To the interference of neighbouring satellite when emitting in order to avoid antenna, it usually needs the tracking of mobile equipment antenna during exercise
Error is less than 0.1 °, and feed will also carry out rotation tracking, and the polarization isolation received between transmitting is greater than 30dB.This
Outside, corresponding requirement also proposed to the transmission power of antenna, minor level etc. in file.
At present, existing many enterprises unit is proposed " communication in moving " relevant product both at home and abroad, such as Israel RaySat public affairs
Multigroup chip antenna of department's release, the IMVS450M products of U.S. TracStar releases, Starling companies of Israel release
0.5m and the vehicle-mounted ring-focus antennas of 1.2m that Mijet series of products and Zhong electricity groups 54 of the country are researched and developed etc..To meet antenna pair
The requirement of the high-precision real-time tracking alignment of satellite, includes automatic tracking system in above-mentioned " communication in moving " product." in dynamic
It is logical " automatic tracking system is in initial static, course angle, carrier are measured by GPS, theodolite, Strapdown Inertial Navigation System
The longitude and latitude of position and the initial angle of relative level, then according to its posture and geographical location, satellite longitude certainly
The dynamic antenna elevation angle determined on the basis of horizontal plane, the rotational orientation under the premise of the holding elevation angle is constant to horizontal plane, and with letter
Number maximum mode is automatically aligned to satellite.During carrier movement, the variation of attitude of carrier is measured, passes through mathematical platform
Operation is transformed to the error angle of antenna, and antenna azimuth, pitch angle, polarizing angle are adjusted by servo mechanism, ensures that carrier is becoming
Antenna makes satellite transmitting antenna real-time tracking geostationary satellite in carrier movement to star in prescribed limit during change.
The system tracking mode has autotracking and inertial navigation to track two kinds.Autotracking be by satellite beacon carry out antenna closed servo with
Track；Inertial navigation tracking is to carry out antenna tracking using the variation of gyro inertial navigation combination sensitive carrier.Both tracking can be according to scene
Situation automatically switches.After system, which finishes star, to be transferred to from motion tracking, worked in a manner of autotracking；At the same time, inertial navigation system
Also enter working condition, and constantly export the data such as antenna polarization, orientation and pitching.When block or it is other due to cause day
When line beacon signal is interrupted, system automatically switches to inertial navigation tracking mode.
No matter antenna is using which kind of tracking mode, and high-precision servo-drive system is the key that traditional " communication in moving " system always
One of part.Under normal conditions, high accuracy servo system need to have about 0.1 ° of high tracking accuracy, simultaneously because " communication in moving " day
Line has larger bore (meeting the antenna aperture for the requirement that networks at present more than 1 meter) and weight, is watched so as to cause high-precision
The higher cost of dress system.At present, high accuracy servo system cost applied to " communication in moving " is tens thousand of easily, even more than ten
Ten thousand, entire " communication in moving " system cost most is accounted for, it is extensive in civil field to limit " communication in moving " communication system
Using.
In current satellite communication antena, whether secondary reflecting element is to be needed according to environment and consider to add, and adds secondary reflection
During part, need to ensure that the subreflector of secondary reflecting element facing away from feed array, and towards the overhead field of feed array.Cause
This needs to use secondary reflecting element mounting bracket, and secondary reflecting element mounting bracket is used to secondary reflecting element being mounted on inserting for feed array
On slot, and need：The subreflector of secondary reflecting element is parallel to feed array, and in the center of subreflector and feed array
The heart is located along the same line, and feed array is located at the focal point of primary reflection surface.Otherwise bigger communication data is susceptible to miss
Difference, it is therefore desirable to reduce tooling error when assembled, and ensure secondary reflecting element in the long-term use with respect to feed array
Stationarity.
Utility model content
In order to reduce tooling error when secondary reflecting element is assembled in feed array overhead, and ensure secondary reflecting element long-term
The stationarity of opposite feed array, the utility model provide a kind of feed array mounting bracket during use.
The solution of the utility model is：A kind of feed array mounting bracket is used to feed array being mounted on main anti-
It penetrates on the primary reflection surface of part, and secondary reflecting element is also mounted on to the overhead of feed array, the subreflector for making secondary reflecting element is parallel
In feed array, and the center of subreflector and the center of feed array are located along the same line, and feed array is located at master instead
Penetrate the focal point in face；
The feed array mounting bracket includes：Column, one end erect the circle centre position for being fixed on primary reflection surface；Slot, Gu
It is scheduled on the other end of column and positioned at the focal point of primary reflection surface, feed array is mounted on slot；Multiple positioning regions one,
Be welded on subreflector, and using the center of subreflector as the center of circle annular layout；Multiple positioning regions two, are welded on
On the bottom surface of slot, and using the center of feed array as the center of circle annular layout, multiple positioning regions two respectively with multiple positioning regions
One corresponds, and positioning region two and corresponding positioning region one are in the same plane, and place plane is perpendicular to subreflector；It is more
A supporting rod, one end of each supporting rod are fixed therein on a positioning region one, and the opposite other end of each supporting rod is fixed
Wherein on a positioning region two.
As being further improved for said program, each supporting rod is the laminated structure repeatedly bent, each supporting rod
Both ends are oppositely arranged and are mutually parallel up and down.
Further, the one end in each supporting rod stationary positioned portion one is extended in parallel along the edge of subreflector, is extended
It is bent downward after subreflector and is bent after extending to positioning region two and run parallel to corresponding positioning region two along bottom surface.
Further, the one end in each supporting rod stationary positioned portion one is extended in parallel along the edge of subreflector, is extended
It bends downward and extends vertically after subreflector, then bend and extend towards two direction of positioning region, bent after extending to positioning region two
And run parallel to corresponding positioning region two along bottom surface.
Further, the feed array mounting bracket further includes multiple fasteners, and each supporting rod passes through at least one tight
Firmware is fixed on corresponding positioning region one, is also fixed on corresponding positioning region two by least another fastener.
Preferably, supporting rod is located at the same side of corresponding positioning region one and corresponding positioning region two, and wherein the one of supporting rod
A side and corresponding positioning region one, corresponding positioning region two are affixed.
As being further improved for said program, the feed array mounting bracket further includes pedestal, and pedestal is fixed on main anti-
The circle centre position in face is penetrated, column setting is fixed on pedestal.
Further, pedestal is fixed on the circle centre position of primary reflection surface by several fasteners.
As being further improved for said program, slot and column are cylinder, and the diameter of column is less than slot
Diameter.
As being further improved for said program, multiple positioning regions two are integrally formed on bottom surface.
Using the feed array mounting bracket of the utility model, fixed form of the positioning region one on subreflector, positioning region
Two fixed forms on bottom surface ensure that being bonded between feed array and secondary reflecting element；Feed array passes through slot
The focal point of primary reflection surface is installed on, ensure that feed array is located at the focal point of primary reflection surface；Positioning region one is with subreflector
Center be the center of circle and annular layout, positioning region two using the center of feed array as the center of circle annular layout, and positioning region two and
Corresponding one place plane of positioning region can ensure that the subreflector of secondary reflection is parallel to feed array perpendicular to subreflector,
And ensure that the center of subreflector and the center of feed array are located along the same line.Therefore, the utility model can reduce secondary anti-
Tooling error when part is assembled in feed array overhead is penetrated, and ensures secondary reflecting element in the long-term use with respect to feed battle array
The stationarity of row.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model feed array mounting bracket.
Fig. 2 is the close-up schematic view in Fig. 1.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It please refers to Fig.1 and Fig. 2, the feed array mounting bracket of the utility model is used to feed array 2 being mounted on principal reflection
On the primary reflection surface 710 of part 3, and secondary reflecting element 1 is also mounted on to the overhead of feed array 2, so as to ensure the pair of secondary reflecting element 1
Reflecting surface 75 is parallel to feed array 2, and ensures that the center of subreflector 75 and the center of feed array 2 are located at same straight line
On, and ensure that feed array 2 is located at the focal point of primary reflection surface 710.
Feed array mounting bracket includes pedestal 711, column 712, slot 73, multiple positioning regions 1, multiple positioning regions two
76th, multiple supporting rods 78, multiple fasteners 79.Erect the circle centre position for being fixed on primary reflection surface 710, slot 73 in 712 one end of column
It is fixed on the other end of column 712 and positioned at the focal point of primary reflection surface 710, feed array 2 is mounted on slot 73.At this
In embodiment, pedestal 711 is fixed on the circle centre position of primary reflection surface 710, and the setting of column 712 is fixed on pedestal 711, pedestal 711
The circle centre position of primary reflection surface 710 is fixed on by several fasteners.Slot 73 and column 712 can be cylinder, and column 712
Diameter be less than slot 73 diameter.
Quantity between positioning region 1, positioning region 2 76, supporting rod 78 this three is usually corresponding, in other implementations
In example, the quantity of positioning region 1 and positioning region 2 76 can be more than the quantity of supporting rod 78 respectively.As for the number of fastener 79
Amount does not specially require, as long as fixed device can will be needed to fix, each device when fixed, can according to when
Between installation environment take the circumstances into consideration increase fastener.
These positioning regions 1 are welded on subreflector 75, and using the center of subreflector 75 as the center of circle annular cloth
Office, these positioning regions 2 76 are welded on the bottom surface 77 of slot 73, and using the center of feed array 2 as the center of circle annular cloth
Office, multiple positioning regions 2 76 correspond respectively with multiple positioning regions 1, positioning region 2 76 and corresponding positioning region one 74
In on same plane, and place plane is perpendicular to subreflector 75.Multiple positioning regions 2 76 are integrally formed as possible on bottom surface 77.
One end of each supporting rod 78 is fixed therein on a positioning region 1, the opposite other end of each supporting rod 78
It being fixed therein on a positioning region 2 76, each supporting rod 78 is the laminated structure repeatedly bent, the two of each supporting rod 78
End is oppositely arranged and is mutually parallel up and down.The structure design of supporting rod 78 reduces the utility model feed array mounting bracket to pair
The influence of the reflecting properties of reflecting element 1 and the feedback performance of feed array 2, also reduces the influence to the primary reflection surface of antenna.
Therefore, multiple positioning regions 1 uniform ring cloth as possible is on subreflector 75, and also uniform ring cloth as possible exists for multiple positioning regions 2 76
On bottom surface 77.
Fixed form of the supporting rod 78 by positioning region 1 on subreflector 75, supporting rod 78 pass through positioning region 2 76
Fixed form on bottom surface 77 ensure that being bonded between feed array 2 and secondary reflecting element 1.Positioning region 1 is with pair
The center of reflecting surface 75 is the center of circle and annular layout, positioning region 2 76 using the center of feed array 2 as the center of circle annular layout, and
Positioning region 2 76, perpendicular to subreflector 75, can ensure that the pair of secondary reflecting element 1 is anti-with corresponding one 74 place plane of positioning region
It penetrates face 75 and is parallel to feed array 2, and ensure that the center of subreflector 75 and the center of feed array 2 are located along the same line.
The one end in each 78 stationary positioned portion 1 of supporting rod can be extended in parallel along the edge of subreflector 75, extend pair
It is bent downward after reflecting surface 75 and is bent after extending to positioning region 2 76 and run parallel to corresponding positioning region two along bottom surface 77
76.In the present embodiment, the one end in each 78 stationary positioned portion 1 of supporting rod is extended in parallel along the edge of subreflector 75, is prolonged
It bends downward and extends vertically, then bend and extend towards 2 76 direction of positioning region after stretching out subreflector 75, extend to positioning region
It is bent after 2 76 and runs parallel to corresponding positioning region 2 76 along bottom surface 77.
Each supporting rod 78 is fixed on by least one fastener 79 on corresponding positioning region 1.Each supporting rod 78 is logical
At least another fastener is crossed to be fixed on corresponding positioning region 2 76.Screw, bolt, pin etc may be used in fastener 79
For fixed device.
Supporting rod 78 is advantageous in that the both ends of supporting rod 78 can be with positioning region 1, positioning region two for laminated structure
76 are preferably stably connected with.Supporting rod 78 is located at the same side of corresponding positioning region 1 and corresponding positioning region 2 76, and supporting rod
78 one of side and corresponding positioning region 1, corresponding positioning region 2 76 are affixed.The fixed form increase support being affixed
Contact area between the both ends of bar 78 and positioning region 1, positioning region 2 76.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of feed array mounting bracket is used for the primary reflection surface (710) mounted on primary reflector (3) by feed array (2)
On, and it is parallel to the subreflector (75) of secondary reflecting element (1) mounted on the overhead of feed array (2) also by secondary reflecting element (1)
Feed array (2), and the center of subreflector (75) and the center of feed array (2) are located along the same line, and feed array
(2) positioned at the focal point of primary reflection surface (710)；It is characterized in that：The feed array mounting bracket includes：
Column (712), one end erect the circle centre position for being fixed on primary reflection surface (710)；
Slot (73) is fixed on the other end of column (712) and positioned at the focal point of primary reflection surface (710), feed array (2)
On slot (73)；
Multiple positioning regions one (74), are welded on subreflector (75), and using the center of subreflector (75) as the center of circle and
Annular layout；
Multiple positioning regions two (76), are welded on the bottom surface (77) of slot (73), and using the center of feed array (2) as circle
The heart and annular layout, multiple positioning regions two (76) correspond respectively with multiple positioning regions one (74), positioning region two (76) and phase
The positioning region one (74) answered is in the same plane, and place plane is perpendicular to subreflector (75)；
Multiple supporting rods (78), one end of each supporting rod (78) are fixed therein on a positioning region one (74), each to support
The opposite other end of bar (78) is fixed therein on a positioning region two (76).
2. feed array mounting bracket as described in claim 1, it is characterised in that：Each supporting rod (78) is the piece repeatedly bent
Shape structure, the both ends of each supporting rod (78) are oppositely arranged and are mutually parallel up and down.
3. feed array mounting bracket as claimed in claim 2, it is characterised in that：Each supporting rod (78) stationary positioned portion one
(74) one end is extended in parallel along the edge of subreflector (75), is bent downward and is extended to after extending subreflector (75) and determines
Position portion two (76) bends and runs parallel to corresponding positioning region two (76) along bottom surface (77) afterwards.
4. feed array mounting bracket as claimed in claim 2, it is characterised in that：Each supporting rod (78) stationary positioned portion one
(74) one end is extended in parallel along the edge of subreflector (75), is bent downward after extending subreflector (75) and is vertically prolonged
It stretches, then bends and extend towards positioning region two (76) direction, extend to positioning region two (76) and bend and prolong along bottom surface (77) are parallel afterwards
Extend to corresponding positioning region two (76).
5. feed array mounting bracket as claimed in claim 2, it is characterised in that：The feed array mounting bracket further includes multiple
Fastener, each supporting rod (78) are fixed on by least one fastener on corresponding positioning region one (74), also by least another
One fastener is fixed on corresponding positioning region two (76).
6. feed array mounting bracket as claimed in claim 5, it is characterised in that：Supporting rod (78) is positioned at corresponding positioning region one
(74) with the same side of corresponding positioning region two (76), and one of side of supporting rod (78) and corresponding positioning region one (74),
Corresponding positioning region two (76) is affixed.
7. feed array mounting bracket as described in claim 1, it is characterised in that：The feed array mounting bracket further includes pedestal
(711), pedestal (711) is fixed on the circle centre position of primary reflection surface (710), and column (712) setting is fixed on pedestal (711).
8. feed array mounting bracket as claimed in claim 7, it is characterised in that：Pedestal (711) is fixed by several fasteners
Circle centre position in primary reflection surface (710).
9. feed array mounting bracket as described in claim 1, it is characterised in that：Slot (73) and column (712) are in cylinder
Shape, and the diameter of column (712) is less than the diameter of slot (73).
10. feed array mounting bracket as described in claim 1, it is characterised in that：Multiple positioning regions two (76) are integrally formed
On bottom surface (77).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721843851.8U CN207587956U (en) | 2017-12-25 | 2017-12-25 | A kind of feed array mounting bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721843851.8U CN207587956U (en) | 2017-12-25 | 2017-12-25 | A kind of feed array mounting bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207587956U true CN207587956U (en) | 2018-07-06 |
Family
ID=62739949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721843851.8U Active CN207587956U (en) | 2017-12-25 | 2017-12-25 | A kind of feed array mounting bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207587956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247154A (en) * | 2019-06-03 | 2019-09-17 | 西安飞机工业（集团）有限责任公司 | A kind of assembly positioning device and method for antenna subreflector support rod |
| CN110611157A (en) * | 2019-08-28 | 2019-12-24 | 西安空间无线电技术研究所 | Feed array position holding structure and method in temperature-varying environment |
-
2017
- 2017-12-25 CN CN201721843851.8U patent/CN207587956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247154A (en) * | 2019-06-03 | 2019-09-17 | 西安飞机工业（集团）有限责任公司 | A kind of assembly positioning device and method for antenna subreflector support rod |
| CN110611157A (en) * | 2019-08-28 | 2019-12-24 | 西安空间无线电技术研究所 | Feed array position holding structure and method in temperature-varying environment |
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