CN109085539A - A kind of double-reflecting face radar imagery antenna - Google Patents
A kind of double-reflecting face radar imagery antenna Download PDFInfo
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- CN109085539A CN109085539A CN201810911276.3A CN201810911276A CN109085539A CN 109085539 A CN109085539 A CN 109085539A CN 201810911276 A CN201810911276 A CN 201810911276A CN 109085539 A CN109085539 A CN 109085539A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/024—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
- G01S7/026—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects involving the transmission of elliptically or circularly polarised waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S2013/916—Airport surface monitoring [ASDE]
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The embodiment of the invention provides a kind of double-reflecting face radar imagery antennas, are related to radar detection field.The double-reflecting face radar imagery antenna includes servo turntable, receiving and transmitting front end, support device and the first reflecting surface being set in support device, the second reflecting surface, transmitting feed component and receives feed component；Support device and servo turntable rotation connection, the first reflecting surface and transmitting feed component formation transmitting antenna, the second reflecting surface and reception feed component form receiving antenna, emit feed component and reception feed component is connect with receiving and transmitting front end respectively.Double-reflecting face radar imagery antenna of the invention can be realized high band, high-resolution, to can realize to the detection of fragment Small object, can be used in foreign body detection system for airfield runway.
Description
Technical field
The present invention relates to radar detection fields, in particular to a kind of double-reflecting face radar imagery antenna.
Background technique
Airfield runway invasion foreign matter (Foreign Object Debris, FOD) has safely significant threat to flight.Aviation
Device is quite fragile for FOD, and a flying bird or fritter plastic cloth sucking engine may cause sky and stop, a Screw
Or the even sharp stone of sheet metal may all stab tire and cause explosion, the tire debris of generation may injure airframe or again
Component is wanted, such as hydraulic tube, fuel tank.After French Concorde air crash in 2000, multi-party research institution and company are all endeavouring
In the research of FOD Detection Techniques and the exploitation of application system, therefore made for preventing airfield runway alien material from hitting aircraft
At aero tyre it is impaired or engine is impaired, and the airfield runway that thus causes is closed or the additional warps such as postponements of flights
Ji loss.The performance of FOD detection system has important role to the guarantee of flight landing safety.
Radar detection method is one of the means of airport foreign bodies detection, but radar detection method domestic at present presence point
The low defect of resolution is likely to result in many false-alarms in the detection process, generates unnecessary cost waste.
Summary of the invention
The purpose of the present invention is to provide a kind of double-reflecting face radar imagery antennas, can be realized very high resolution ratio,
To realize to the detection of fragment Small object, can be used in foreign body detection system for airfield runway.
The embodiment of the present invention is achieved in that
A kind of double-reflecting face radar imagery antenna, including servo turntable, receiving and transmitting front end, support device and be set to described
The first reflecting surface, the second reflecting surface, transmitting feed component and reception feed component in support device；The support device and institute
Servo turntable rotation connection is stated, first reflecting surface and the transmitting feed component form transmitting antenna, second reflection
Face and receptions feed component formation receiving antenna, the transmitting feed component and the reception feed component respectively with it is described
Receiving and transmitting front end connection.
The beneficial effect of double-reflecting face radar imagery antenna provided in an embodiment of the present invention is: watching by the way that support device is opposite
Turntable rotation is taken, the first reflecting surface being set in support device, the second reflecting surface, transmitting feed component are driven and receives feed
Component rotation, the first reflecting surface and transmitting feed component form transmitting antenna, for carrying out azimuth scan, the second reflecting surface and institute
It states and receives feed component receiving antenna, for receiving the foreign substance information scanned, transmitting feed component and reception feed component point
It is not connect with receiving and transmitting front end, receives the foreign substance information that feed component receives and transmitted by receiving and transmitting front end, so as to detection
The processing of information.Double-reflecting face radar imagery antenna provided in an embodiment of the present invention is transmit-receive sharing radar antenna, it can be achieved that very
High resolution ratio so that the detection to fragment Small object can be realized, and has light weight, the simple feature of structure, convenient for making
With can be used in foreign body detection system for airfield runway.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the three-dimensional view of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 2 is the cross-sectional view at another visual angle of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 3 is the three-dimensional view of the first reflecting surface of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 4 is the stereopsis at the back side of the first reflecting surface of double-reflecting face radar imagery antenna provided in an embodiment of the present invention
Figure.
Fig. 5 is the three-dimensional view of the transmitting feed component of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 6 is the three-dimensional view of the transmitting feed of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 7 is the three-dimensional view of the transmitting waveguide bend of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 8 is the standing-wave ratio curve graph of the transmitting feed of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Fig. 9 is the directional diagram of the transmitting feed of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 10 is that the axis of the transmitting feed of double-reflecting face radar imagery antenna provided in an embodiment of the present invention is (wider than directional diagram
Wave beam section).
Figure 11 is the radiation direction of the transmitting Feed Horn of double-reflecting face radar imagery antenna provided in an embodiment of the present invention
Figure.
Figure 12 is the three-dimensional view of the reception feed component of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 13 is the three-dimensional view of the reception feed of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 14 is the three-dimensional view of the reception waveguide bend of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 15 is the reception feed standing-wave ratio curve graph of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 16 is the reception feed directional diagram of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 17 is that the reception feed axis of double-reflecting face radar imagery antenna provided in an embodiment of the present invention compares directional diagram.
Figure 18 is the three-dimensional view of the feed adjustment device of double-reflecting face radar imagery antenna provided in an embodiment of the present invention,
Wherein by taking the adjusting to transmitting feed component as an example.
Figure 19 is the support frame and teaching machine case assembly of double-reflecting face radar imagery antenna provided in an embodiment of the present invention
Three-dimensional view.
Figure 20 is the cutting structure chart of the servo turntable of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Figure 21 is the servo-control system of the servo turntable of double-reflecting face radar imagery antenna provided in an embodiment of the present invention
Structural schematic block diagram.
Figure 22 is the three-dimensional view of the radio frequency cabinet of double-reflecting face radar imagery antenna provided in an embodiment of the present invention.
Icon: 1- double-reflecting face radar imagery antenna；The first reflecting surface of 100-；The second reflecting surface of 110-；111- chiasma type
Reinforcing rib；112- dowel hole；113- mounting plane；114- datum hole；115- datum plane；200- emits feed component；
210- emits feed；211- emits Feed Horn；The first mounting flange of 2111-；212- emits feed partition circular polarizer；213-
Emit feed power splitter；The second mounting flange of 2131-；220- emits waveguide bend；221- third mounting flange；222- the 4th is installed
Flange；300- receives feed component；310- receives feed；311- receives Feed Horn；The 5th mounting flange of 3111-；312- connects
Receive feed partition circular polarizer；313- first receives feed corner waveguide；314- second receives feed corner waveguide；315-
First receives feed power splitter；316- second receives feed power splitter；The 6th mounting flange of 3151-；320- receives waveguide bend；
The 7th mounting flange of 321-；The 8th mounting flange of 322-；400- servo turntable；410- carries cabinet；420- direction rotating shaft；430-
Bearing；440- force bearing plate；450- torque motor；460- rotary encoder；470- brake assembly；471- brake；472- system
Dynamic device bracket；480- electric machine support；490- slip ring assembly；491- slip ring；4911- slip ring stator；4912- slip-ring rotor；492-
Slip-ring rotor bracket；493- slip ring stator support；500- receiving and transmitting front end；600- support device；610- support frame；611- reflecting surface
Support frame；612- support plate；613- support frame sealing plate；614- radio frequency cabinet side stand；620- number cabinet；621- number cabinet
Left support；622- number cabinet right support；623- number cabinet rear panel；624- number cabinet column；625- number chassis lid
Plate；626- number case front panel；630- radio frequency cabinet；631- radio frequency cabinet；6311- connector mounting hole；6312- stops side
Mouthful；632- radio frequency cover board；700- feed mounting bracket；710- the first feed mounting bracket；720- the second feed mounting bracket；
800- feed regulating device；810- movable plate；820- fixed frame；The first regulating part of 830-；The second regulating part of 840-；850- third
Regulating part；900- servo-control system；910- power supply system；911-EMI filter；912- air switch；913- ac contactor
Device；914-AC/DC power module；920- servo controller；930- control device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Fig. 1 and Fig. 2 are please referred to, a kind of double-reflecting face radar imagery antenna 1 is present embodiments provided, can be used as airport
The foreign bodies detection detection radar antenna of runway has the characteristics that frequency range height, high resolution, and working frequency range can be W frequency range.Energy
There is the foreign matter of security risk from the runway of millimeter rank detection machine field, has important role to the guarantee of flight landing safety.
Double-reflecting face radar imagery antenna 1 provided in this embodiment includes servo turntable 400, receiving and transmitting front end 500, support dress
It sets the 600, first reflecting surface 100, the second reflecting surface 110, transmitting feed component 200 and receives feed component 300.First reflecting surface
100, the second reflecting surface 110, transmitting feed component 200 and reception feed component 300 are all set in support device 600.Support
Device 600 and servo turntable 400 are rotatablely connected, the first reflecting surface 100 and the transmitting formation transmitting antenna of feed component 200, and second
Reflecting surface 110 and receive feed component 300 formed receiving antenna, transmitting feed component 200 and reception feed component 300 respectively with
Receiving and transmitting front end 500 connects.Transmitting antenna is for carrying out azimuth scan, and receiving antenna is for receiving the foreign substance information scanned.It can
Selection of land, in the present embodiment, receiving and transmitting front end 500 uses millimeter wave transceiving front end 500, is further able to detect foreign matter from millimeter rank.
In addition, transmitting antenna is right-handed circular polarization, receiving antenna is double-circle polarization.
In the present embodiment, support device 600 includes support frame 610, digital cabinet 620 and radio frequency cabinet 630, digital cabinet
620 and radio frequency cabinet 630 be set on support frame 610.Wherein, digital units, receiving and transmitting front end are provided in digital cabinet 620
500 are connect by cable with digital units, and support frame 610 and servo turntable 400 are rotatablely connected.Digital units pass through servo turntable
400 connect with external signal handling equipment, to send a signal to the processing that signal handling equipment carries out rear end.
In the present embodiment, receiving and transmitting front end 500 is set in radio frequency cabinet 630.In addition, radio frequency cabinet 630 is also used to install
The radio-frequency devices such as the video amplifier, receiving and transmitting front end 500 are connect with the video amplifier, and the video amplifier is connect with digital units, depending on
Audio amplifier, which can amplify 500 received signal of receiving and transmitting front end, to be handled and is sent to digital units.
Please refer to Fig. 3 and Fig. 4, in the present embodiment, the first reflecting surface 100 and the second reflecting surface 110 are that cutting is band-like partially
Paraboloid is set, face surface is highly polished, and type face precision is high.First reflecting surface 100 and the second reflecting surface 110 are located at
Above and below radio frequency cabinet 630, in being arranged symmetrically up and down.The focus of first reflecting surface 100 and transmitting feed component 200
Phase center is overlapped, to constitute transmitting antenna；The focus of second reflecting surface 110 and the phase center for receiving feed component 300
It is overlapped, to constitute receiving antenna.Optionally, the back side of the first reflecting surface 100 and the second reflecting surface 110 is provided with chiasma type
Reinforcing rib 111 guarantees structural strength；And it is provided with dowel hole 112 and mounting plane 113, pass through dowel hole 112 and support
Frame 610 realizes positioning, then is connect mounting plane 113 with support frame 610 by connector, to guarantee the first reflecting surface 100
With the installation accuracy of the second reflecting surface 110.The top surface of first reflecting surface 100 and the second reflecting surface 110 is provided with datum hole 114
With datum plane 115.
Referring to Fig. 5, further, double-reflecting face radar imagery antenna 1 can also include feed mounting bracket 700, feedback
Source mounting bracket 700 includes the first feed mounting bracket 710.Emit feed component 200 to pacify by the first feed mounting bracket 710
Loaded on radio frequency cabinet 630.Certainly transmitting feed component 200 can also be installed on support by the first feed mounting bracket 710
In the other structures of device 600.Top position among the tail portion of radio frequency cabinet 630 offers rectangular channel, for installing transmitting
Feed component 200.
Emitting feed component 200 includes transmitting feed 210 and transmitting waveguide bend 220, and transmitting feed 210 is installed on the first feedback
Source mounting bracket 710, the one end for emitting waveguide bend 220 are connect with transmitting feed 210, and the other end is connect with receiving and transmitting front end 500.
Referring to Fig. 6, transmitting feed 210 includes sequentially connected transmitting Feed Horn 211, transmitting feedback in the present embodiment
Source partition circular polarizer 212 and transmitting feed power splitter 213.Wherein, transmitting feed power splitter 213 and transmitting waveguide bend 220 connect
It connects.Transmitting Feed Horn 211 is provided with the first mounting flange 2111, and transmitting Feed Horn 211 passes through first mounting flange
2111 connect with the first feed mounting bracket 710.First mounting flange 2111 is chosen as through pin hole and the first feed installation branch
Frame 710 positions, and is fastened by screw.
Emit Feed Horn 211 using square opening diameter as radiating element, makes full use of the mouth face of radiating element.Also, it adopts
Divide eight mouthfuls of loudspeaker form with single layer one, realizes one-dimensional array (8 × 1).It is therein all the way to emit feed partition circular polarizer 212
Using short circuit design, single circular polarisation is realized while reducing complexity.In the present embodiment, emit feed partition circular polarizer
212 use right circular polarisation.Emit feed power splitter 213 using the power splitter of the folding face H Y shape section form, index is good, structure
It is compact.The common port for emitting feed power splitter 213 is BJ900 standard waveguide mouth, and one end is provided with the second mounting flange 2131.
Transmitting feed power splitter 213 is connect by the second mounting flange 2131 with transmitting waveguide bend 220.Optionally, the second mounting flange
2131 use non-standard flange, are also configured with pin hole used for positioning thereon, guarantee installation accuracy.
Therefore, transmitting feed 210 uses loudspeaker+partition circular polarizer+power division network form, divides eight function point by single layer one
Network feeds eight Circular polarization horn units, realizes one-dimensional array (8 × 1).
Referring to Fig. 7, transmitting waveguide bend 220 inner cavity be BJ900 waveguide cavity, structure type be spatial mode waveguide bend, one
End is provided with third mounting flange 221, and the other end is provided with the 4th mounting flange 222.Third mounting flange 221 is by with second
The connection of mounting flange 2131 is to realize that transmitting waveguide bend 220 is connect with transmitting feed power splitter 213, third mounting flange 221
It is optional to use non-standard flange.4th mounting flange 222 with receiving and transmitting front end 500 for connecting, the optional use of the 4th mounting flange 222
Standard FUGP type flange.
Fig. 8 is the standing-wave ratio curve of the transmitting feed 210 of double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention
Figure.Fig. 9 is the directional diagram of the transmitting feed 210 of double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention.Figure 10 is this
The axis of the transmitting feed 210 for the double-reflecting face radar imagery antenna 1 that inventive embodiments provide is than directional diagram (broad beam section).Figure
11 be the antenna pattern of the transmitting Feed Horn 211 of double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention.By scheming
8~Figure 10 is as it can be seen that double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention has good radiance.
Figure 12 is please referred to, feed mounting bracket 700 can also include the second feed mounting bracket 720, the installation of the second feed
Bracket 720 is connect with radio frequency cabinet 630, is received feed component 300 and is installed on the second feed mounting bracket 720.Certainly feedback is received
Source component 300 can also be installed in the other structures of support device 600 by the first feed mounting bracket 710.Radio frequency cabinet
Bottom position among 630 tail portion offers rectangular channel, receives feed component 300 for installing.
Receiving feed component 300 includes receiving feed 310 and receiving waveguide bend 320, receives feed 310 and is installed on the second feedback
Source mounting bracket 720, the one end for receiving waveguide bend 320 are connect with feed 310 is received, and the other end is connect with receiving and transmitting front end 500.
Please refer to Figure 13, receiving feed 310 includes receiving Feed Horn 311, receiving feed partition circular polarizer 312, the
One, which receives feed corner waveguide 313, second, receives the reception feed power splitter 315 and second of feed corner waveguide 314, first
Receive feed power splitter 316.The one end for receiving feed partition circular polarizer 312 is connect with Feed Horn 311 is received, another both ends point
It is not connect with the first reception feed corner waveguide 313 and the second reception feed corner waveguide 314.First receives feed right angle
The other end of waveguide bend 313 is connect with the first reception feed power splitter 315, and second receives the another of feed corner waveguide 314
End is connect with the second reception feed power splitter 316.Receiving waveguide bend 320 is two, and first receives feed power splitter 315 and second
It receives one end that feed power splitter 316 respectively receives waveguide bend 320 with one to connect, the other end of two reception waveguide bends 320 is equal
It is connect with receiving and transmitting front end 500.
Feed Horn 311 is received using square opening diameter as radiating element, makes full use of the mouth face of radiating element.Also, it adopts
Divide eight mouthfuls of loudspeaker form with single layer one, realizes one-dimensional array (8 × 1).It receives and is provided with the 5th Method for Installation on Feed Horn 311
Orchid 3111, is connect by the 5th mounting flange 3111 with the second feed mounting bracket 720.5th mounting flange 3111 is chosen as
It is positioned by pin hole and the second feed mounting bracket 720, and is fastened by screw.
Double-circle polarization is realized by receiving feed partition circular polarizer 312.It first reception feed power splitter 315 and second connects
The power splitter that feed power splitter 316 is all made of the face H T-section form is received, index is good, compact-sized.First receives feed power splitter
315 and second receive feed power splitter 316 common port be BJ900 standard waveguide mouth.First receives feed power splitter 315 and the
One end of two reception feed power splitters 316 is provided with the 6th mounting flange 3151, and first receives feed power splitter 315 and second
Feed power splitter 316 is received to connect by the 6th mounting flange 3151 with a reception waveguide bend 320 respectively.Optionally, the 6th
Mounting flange 3151 uses non-standard flange, is also configured with pin hole used for positioning thereon, guarantees installation accuracy.
Therefore, it receives feed 310 and uses loudspeaker+partition circular polarizer+power division network form, by double-deck one point of eight function point
Network feeds eight Circular polarization horn units, realizes one-dimensional array (8 × 1).
Figure 14 is please referred to, two reception 320 structures of waveguide bend are identical, are all made of bending structure, receive the interior of waveguide bend 320
Chamber is BJ900 waveguide cavity, and structure type is the double waveguide bends in the face H.The one end for receiving waveguide bend 320 is provided with the 7th mounting flange
321, the other end is provided with the 8th mounting flange 322.7th mounting flange 321 of two reception waveguide bends 320 is respectively with first
Receive the 6th mounting flange of the 6th mounting flange 3151 and the second reception feed power splitter 316 on feed power splitter 315
3151 connections.7th mounting flange 321 is optional using non-standard flange.8th mounting flange 322 is used to connect with receiving and transmitting front end 500
It connects, the 8th mounting flange 322 is optional using standard FUGP type flange.
Figure 15 is the 310 standing-wave ratio curve of reception feed of double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention
Figure.Figure 16 is 310 directional diagram of reception feed of double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention.Figure 17 is this
310 axis of reception feed for the double-reflecting face radar imagery antenna 1 that inventive embodiments provide compares directional diagram.It can by Figure 15~Figure 17
See, double-reflecting face radar imagery antenna 1 provided in an embodiment of the present invention has good radiance.
Figure 18 is please referred to, further, double-reflecting face radar imagery antenna 1 can also include feed regulating device 800, feedback
Source regulating device 800 includes movable plate 810, fixed frame 820, the first regulating part 830, the second regulating part 840 and third regulating part
850.Feed mounting bracket 700 is connect with movable plate 810, and fixed frame 820 is connect with support device 600, and movable plate 810 is in first
Side on direction is connect by the first regulating part 830 with fixed frame 820, fixes frame 820 relatively in the to adjust movable plate 810
Position on one direction, movable plate 810 are connect by the second regulating part 840 with fixed frame 820 in the side in second direction, with
The relatively fixed frame 820 of movable plate 810 is adjusted in the position in second direction, movable plate 810 passes through in the side on third direction
Third regulating part 850 is connect with fixed frame 820, to adjust the relatively fixed frame 820 of movable plate 810 in the position on third direction.
It should be noted that feed mounting bracket 700 can be the first feed mounting bracket 710, or it is also possible to
Two feed mounting brackets 720 or the first feed mounting bracket 710 and the second feed mounting bracket 720 can pass through feed
Regulating device 800 is connect with support device 600, adjusts transmitting feed component 200 and reception feed group as needed to realize
The position of part 300 is adjusted, and realizes front and rear, left and right, the feed of pitching Three Degree Of Freedom adjusts function.In addition, first direction, second party
It is mutually orthogonal two-by-two to, third direction.Wherein, first direction is indicated with X-direction, and second direction is indicated with Y-direction, third direction
It is indicated with pitch orientation.Optionally, the first regulating part 830, the second regulating part 840 and third regulating part 850 can be respectively the side X
Screw and pitch regulation screw are adjusted to adjusting screw, Y-direction.First regulating part 830 can be multiple groups, every group of first regulating part
830 include that two X-directions adjust screw, is respectively arranged at movable plate 810 in two sides opposite on first direction；Second is adjusted
Part 840 can be multiple groups, and every group of second regulating part 840 includes that two Y-directions adjust screws, be respectively arranged at movable plate 810 in
Opposite two sides in second direction.
Figure 19 is please referred to, further, support frame 610 may include reflecting surface support frame 611, support plate 612, support frame
Sealing plate 613 and radio frequency cabinet side stand 614.Wherein, reflecting surface support frame 611 can be two, two reflecting surface support frames 611
It is opposite to be arranged in parallel.The side of support plate 612 is connect with the side of reflecting surface support frame 611, constitutes the main supporting structure of antenna,
Optionally the two is connected by screw to, L-shaped structure type.Support frame sealing plate 613 is connected to two reflecting surface support frames 611
Between.The bottom of support plate 612 cooperates for servo turntable 400, and is connected by screw to.Radio frequency cabinet side stand 614 is with spiral shell
Nail is installed on the two sides of reflecting surface support frame 611, and connect with radio frequency cabinet 630, to hold radio frequency cabinet 630.
Digital cabinet 620 is it is considered that be integrated in support frame 610.Digital cabinet 620 may include digital cabinet left support
621, digital cabinet right support 622, digital cabinet rear panel 623, digital cabinet column 624, digital chassis cover 625 and number
Case front panel 626, digital case front panel 626, digital cabinet left support 621, digital cabinet rear panel 623 and digital cabinet
Right support 622 is sequentially connected end to end, and surrounds rectangular box structure, and digital chassis cover 625 is covered on the rectangular box structure,
Its surrounding is right with digital case front panel 626, digital cabinet left support 621, digital cabinet rear panel 623 and digital cabinet respectively
Bracket 622 connects.In addition, between digital cabinet right support 622 and digital cabinet rear panel 623 and digital cabinet left support
It is respectively connected by a teaching machine case column 624 between 621 and digital cabinet rear panel 623.In this way, forming cuboid structure
Digital cabinet 620.
Figure 20 is please referred to, the driving part that servo turntable 400 is detected as radar scanning drives form using straight.In servo
Under the driving of turntable 400, realizes continuous rotation, shuttle-scanning and the movement such as be accurately directed to.Servo turntable 400 includes carrying cabinet
410 and be set to carrying cabinet 410 in direction rotating shaft 420, bearing 430, force bearing plate 440, torque motor 450, rotary coding
Device 460, brake assembly 470, electric machine support 480 and slip ring assembly 490.Carrying cabinet 410 is made of sheet metal component, for a whole set of day
The load bearing component of line.The bottom of carrying cabinet 410 is equipped with castor and stabilizer blade, is placed directly on level ground, also can be used
Foundation bolt is fixed.Electric machine support 480 is connect with carrying cabinet 410, and torque motor 450 is installed on electric machine support 480, torque electricity
Machine 450 is connect with direction rotating shaft 420, and direction rotating shaft 420 is connect with support frame 610, and rotary encoder 460 is set to direction rotating shaft
420, corner information when being moved for real-time measurement direction rotating shaft 420.Bearing 430 uses high-precision rotary bearing 430, bearing
430 inner rings and direction rotating shaft 420 use transition fit, guarantee preferable alignment, and outer ring is matched with force bearing plate 440 using small―gap suture
It closes.Force bearing plate 440 is installed on the upper surface of carrying cabinet 410 by screw.In the present embodiment, direction rotating shaft 420 is stairstepping
Structure is sequentially installed with rotary encoder 460, torque motor 450 and brake assembly 470 from top to bottom, direction rotating shaft 420
Internal digital has hollow through-hole, for passing through for harness.Digital units are set by slip ring assembly 490 and the signal processing of rear end
It is standby to be connected.The top of servo turntable 400 passes through spiral shell with the seam allowance small―gap suture of direction rotating shaft 420 Yu 610 bottom of support frame
Nail connection.
Slip ring assembly 490 includes slip ring 491, slip-ring rotor bracket 492 and slip ring stator support 493.Slip ring 491 includes sliding
Rotor 4912 and the slip ring stator 4911 being sheathed on outside slip-ring rotor 4912.Direction rotating shaft 420 passes through slip-ring rotor bracket 492
It is connect with slip-ring rotor 4912, for driving slip-ring rotor 4912 to rotate relative to slip ring stator 4911.Slip ring stator support 493 with
It carries cabinet 410 to connect, slip ring stator 4911 is installed on slip ring stator support 493, and slip-ring rotor 4912 is electrically connected with digital units
It connects, and for external signal handling equipment electrical connection.
Brake assembly 470 includes brake 471 and brake support frame 472, wherein brake 471 is set to orientation and turns
Axis 420 and the lower section for being located at torque motor 450 are had an effect, for there are abnormal conditions when power down phenomenon occurs with limit
The rotation of direction rotating shaft 420 processed.Brake 471 is installed on brake support frame 472, and brake support frame 472 and electric machine support 480 connect
It connects.
Figure 21 is please referred to, servo turntable 400 is provided with servo-control system 900, and servo-control system 900 is set to carrying
In cabinet 410.Servo-control system 900 includes power supply system 910, servo controller 920 and control device 930.Power supply system
910 are electrically connected with servo controller 920, and servo controller 920 is electrically connected with control device 930, servo controller 920 and number
Unit electrical connection, the instruction for being issued according to digital units, control control device 930 complete corresponding actions.Power supply system 910
Including sequentially connected electromagnetic interface filter 911, air switch 912, A.C. contactor 913 and AC/DC power module 914.AC/DC
Power module 914 is electrically connected with servo controller 920.Optionally, servo-control system 900 uses ARM+FPGA core architecture,
Its working principle is that: primary power source is filtered through EMI, air switch 912 and A.C. contactor 913 enter AC/DC power module
914, output 24VDC power supply to servo controller 920；On/off instruction (OC) is issued from digital units to servo-system, is watched
Dress system is realized by hardware circuit to the on-off control of plate grade DC/DC power module 24VDC main power source；After the completion of powering on, watch
It takes controller 920 to complete system initialization and enter instruction breaks wait state, and all kinds of instructions issued according to digital units
Complete Portable Batch System, data upload, state is fed back and motion control；Servo-system periodically carry out System self-test (if any
It is abnormal, then carry out fault-tolerant and troubleshooting), while according to working state of system record log.
Figure 22 is please referred to, further, radio frequency cabinet 630 uses rectangular configuration, by radio frequency cabinet 631 and radio frequency cover board
632 are constituted.The side of radio frequency cabinet 631 and the design of radio frequency cover board 632 have heat release hole, to radiate；The design of its front end face connects
Head mounting hole 6311, to install radio-frequency joint and Aviation Connector；There is side seam allowance 6312 in front end side, is used for and radio frequency cabinet
Side stand 614 is connected by screw to.
In conclusion double-reflecting face radar imagery antenna 1 provided in this embodiment, can be fixed on ground, belong to eccentric
Turntable structure；Its working frequency range can be W frequency range, be transmit-receive sharing radar antenna.By high band Antenna Design, it can be achieved that very
High resolution ratio, so that the detection to fragment Small object can be realized.The double-reflecting face radar imagery antenna 1 passes through torque motor
450 driving direction rotating shafts 420, so that transmitting antenna with movable support device 600 and thereon carries out azimuth scan.Referred to according to control
The difference of order is, it can be achieved that continuous rotation, shuttle-scanning and the movement such as be accurately directed to, to realize detection and the positioning function of radar
Energy.The foreign substance information that antenna detection arrives is transferred to the digital processing system of rear end after the radio-frequency devices processing in radio frequency cabinet 630
System realizes the processing to detection information.Rotary encoder 460 on direction rotating shaft 420 can real-time measurement movement when corner letter
Breath, and it is back to servo-system in real time, it realizes and is accurately positioned and tests the speed.Power down phenomenon occurs if there are abnormal conditions, makes
Dynamic device 471 is had an effect, and the rotation of direction rotating shaft 420 is limited.The double-reflecting face radar imagery antenna 1 of the present embodiment has frequency range
Height, type face precision is high, light weight, the simple feature of structure, is easy to use.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of double-reflecting face radar imagery antenna, which is characterized in that including servo turntable, receiving and transmitting front end, support device and
The first reflecting surface, the second reflecting surface, transmitting feed component and the reception feed component being set in the support device；The branch
Support arrangement and the servo turntable are rotatablely connected, and first reflecting surface and the transmitting feed component form transmitting antenna, institute
It states the second reflecting surface and the reception feed component forms receiving antenna, the transmitting feed component and the reception feed component
It is connect respectively with the receiving and transmitting front end.
2. double-reflecting face radar imagery antenna according to claim 1, which is characterized in that the transmitting feed component includes
Emit feed and transmitting waveguide bend, the double-reflecting face radar imagery antenna further includes feed mounting bracket, the feed installation
Bracket includes the first feed mounting bracket, and the first feed mounting bracket is connect with the support device, the transmitting feed
It is installed on the first feed mounting bracket, one end of the transmitting waveguide bend is connect with the transmitting feed, the other end and institute
State receiving and transmitting front end connection.
3. double-reflecting face radar imagery antenna according to claim 2, which is characterized in that the transmitting feed includes successively
The transmitting Feed Horn of connection, transmitting feed partition circular polarizer and transmitting feed power splitter, the transmitting feed power splitter and
The transmitting waveguide bend connection.
4. double-reflecting face radar imagery antenna according to claim 1, which is characterized in that the reception feed component includes
It receives feed and receives waveguide bend, the double-reflecting face radar imagery antenna further includes feed mounting bracket, the feed installation
Bracket includes the second feed mounting bracket, and the second feed mounting bracket is connect with the support device, the reception feed
It is installed on the second feed mounting bracket, described one end for receiving waveguide bend is connect with the reception feed, the other end and institute
State receiving and transmitting front end connection.
5. double-reflecting face radar imagery antenna according to claim 4, which is characterized in that the reception feed includes receiving
Feed Horn, receive feed partition circular polarizer, first receive feed corner waveguide, second receive feed corner waveguide,
First receives feed power splitter and the second reception feed power splitter, and one end of the reception feed partition circular polarizer connects with described
Feed Horn connection is received, another both ends receive feed corner waveguide and described second with described first respectively and receive feed quarter bend
Waveguide connection, the other end of the first reception feed corner waveguide is connect with the first reception feed power splitter, described
The other end of second reception feed corner waveguide is connect with the second reception feed power splitter, and the reception waveguide bend is two
A, described first receives feed power splitter and the second reception feed power splitter respectively one end with a reception waveguide bend
Connection, two other ends for receiving waveguide bend are connect with the receiving and transmitting front end.
6. according to the described in any item double-reflecting face radar imagery antennas of claim 2-5, which is characterized in that the double-reflecting face
Radar imagery antenna further includes feed regulating device, the feed regulating device include movable plate, fixed frame, the first regulating part,
Second regulating part and third regulating part, the feed mounting bracket are connect with the movable plate, the fixed frame and the support
Device connection, the movable plate are connect by first regulating part with the fixed frame in the side on first direction, to adjust
The relatively described fixed frame of the movable plate is saved in the position on the first direction, the movable plate is in the side in second direction
It is connect by second regulating part with the fixed frame, to adjust the relatively described fixed frame of the movable plate in the second party
Upward position, the movable plate are connect by the third regulating part with the fixed frame in the side on third direction, with
The relatively described fixed frame of the movable plate is adjusted in the position on the third direction.
7. double-reflecting face radar imagery antenna according to claim 1, which is characterized in that the support device includes support
Frame and the digital cabinet and radio frequency cabinet being set on support frame as described above, the receiving and transmitting front end are set to the radio frequency cabinet
It is interior, digital units are provided in the number cabinet, the receiving and transmitting front end is connect by cable with the digital units, the branch
Support and the servo turntable are rotatablely connected.
8. double-reflecting face radar imagery antenna according to claim 7, which is characterized in that the servo turntable, which is provided with, to be watched
Take control system, the servo-control system includes power supply system, servo controller and control device, the power supply system and institute
Servo controller electrical connection is stated, the servo controller is electrically connected with the control device, the servo controller and the number
Word cell electrical connection, the instruction for being issued according to the digital units control the control device and complete corresponding actions.
9. double-reflecting face radar imagery antenna according to claim 7, which is characterized in that the servo turntable includes carrying
Cabinet and direction rotating shaft, torque motor, rotary encoder and the electric machine support being set in the carrying cabinet, the motor branch
Frame is connect with the carrying cabinet, and the torque motor is installed on the electric machine support, and the torque motor and the orientation turn
Axis connection, the direction rotating shaft are connect with support frame as described above, and the rotary encoder is set to the direction rotating shaft, for real-time
Measure corner information when direction rotating shaft movement.
10. double-reflecting face radar imagery antenna according to claim 9, which is characterized in that the servo turntable further includes
Slip ring, the slip ring include slip-ring rotor and the slip ring stator being sheathed on outside the slip-ring rotor, the direction rotating shaft with it is described
Slip-ring rotor connection, for driving the slip-ring rotor to rotate relative to the slip ring stator, the slip-ring rotor and the number
Unit electrical connection, and for external signal handling equipment electrical connection.
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| CN201810911276.3A CN109085539B (en) | 2018-08-10 | 2018-08-10 | Double-reflector radar imaging antenna |
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| CN201810911276.3A CN109085539B (en) | 2018-08-10 | 2018-08-10 | Double-reflector radar imaging antenna |
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| CN112701437A (en) * | 2020-12-22 | 2021-04-23 | 苏州度风科技有限公司 | Multi-beam forming antenna system applied to wind profile radar |
| CN113900085A (en) * | 2021-09-22 | 2022-01-07 | 张海杨 | Radio directional receiving reflectometer capable of receiving signals from multiple directions |
| CN118191744A (en) * | 2024-05-14 | 2024-06-14 | 电子科技大学(深圳)高等研究院 | Terahertz front end |
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Address after: No.6 Xingkang South Road, Yuelu District, Changsha City, Hunan Province Applicant after: HUNAN SPACEFLIGHT HUANYU COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: No. 229, tongzipo West Road, Yuelu District, Changsha City, Hunan Province, 410205 Applicant before: HUNAN SPACEFLIGHT HUANYU COMMUNICATION TECHNOLOGY Co.,Ltd. |
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