CN104142493A - Radar scanning device with antenna and reflector combined - Google Patents
Radar scanning device with antenna and reflector combined Download PDFInfo
- Publication number
- CN104142493A CN104142493A CN201410383043.2A CN201410383043A CN104142493A CN 104142493 A CN104142493 A CN 104142493A CN 201410383043 A CN201410383043 A CN 201410383043A CN 104142493 A CN104142493 A CN 104142493A
- Authority
- CN
- China
- Prior art keywords
- antenna
- reflecting plate
- servomotor
- reflecting
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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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
-
- 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
- G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
- G01S13/953—Radar or analogous systems specially adapted for specific applications for meteorological use mounted on aircraft
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/285—Aircraft wire antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
- H01Q3/20—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is fixed and the reflecting device is movable
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Astronomy & Astrophysics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to a radar scanning device with an antenna and a reflector combined. The radar scanning device comprises the antenna and a reflection mechanism. The reflection mechanism comprises the reflector and a servo motor. The reflection face of the reflector corresponds to the phase equivalent face of the antenna; the back face of the reflector is fixedly connected with the output shaft of the servo motor, the included angle between the reflector and the output shaft of the servo motor is 30-50 degrees, and the output shaft of the servo motor is coaxial with the axis of the antenna; the reflector is driven by the servo motor to swing so that the scanning function of the antenna can be achieved. The radar scanning device has the advantages that the antenna is fixed, and the reflection mechanism swings to conduct scanning. Compared with mechanisms of the same kind, the radar scanning device has the advantages of being small in size, low in weight, small in system inertia, low in driving power, small in motion envelope space and the like.
Description
Technical field
The invention belongs to airborne radar technical field, be specifically related to a kind of airborne millimeter wave cloud detection radar.
Background technology
Airborne millimeter wave cloud detection radar be take general purpose vehicle as workbench, flies in height above sea level 7000 ~ ten thousand metres high-altitude, completes perpendicular to the cloud layer in sector crosssection region, course line and surveys.In prior art, for airborne millimeter wave cloud detection radar, antenna adopts metal mirror biasing clamping structure more, utilizes servomotor and gear train direct driven antenna reflecting surface to complete detection surface sweeping.This version utilizes whole reflecting body (comprising feed) to scan, not only moment of inertia is large, and spatial movement enveloping surface is large, require aircraft to there is enough installing spaces, require aircraft that enough driving powers can be provided simultaneously, thereby make the range of application of radar be subject to great restriction.
Summary of the invention
In order to overcome the deficiency in antenna scanning structure in existing airborne cloud detection radar, the invention provides a kind of radar scanner that adopts lens antenna to combine with reflecting plate.
The radar scanner that adopts antenna to combine with reflecting plate, comprises antenna, also comprises reflecting mechanism, and described reflecting mechanism comprises reflecting plate and servomotor; The Phase Equivalent face of the reflecting surface of described reflecting plate and antenna is corresponding; The back side of reflecting plate is being fixedly connected with the output shaft of servomotor, and the angle between reflecting plate and the output shaft of servomotor is 30~50 degree, the output shaft of servomotor and the axis coaxle of antenna; The Phase Equivalent face of described antenna and the spacing between reflecting plate are greater than the bore of antenna, are the integral multiple of wavelength; Reflecting plate, at the drive lower swing of servomotor, is realized the scan function of antenna.
Described antenna is lens antenna, plate aerial or parabola antenna.
Reflecting plate is realized the swing of-60~+ 60 degree angular regions under the drive of servomotor.
Angle between reflecting plate and the output shaft of servomotor is 45 degree.
The integrated lens antenna of described lens antenna, comprises feed, housing and phacoid; Described housing is tubaeform, and described feed is fixed at the smaller diameter end of housing, and described phacoid is fixed at the larger diameter end of housing; Described phacoid is convex lens.
Optimisation technique scheme of the present invention is: by a kind of feed and the integrated lens antenna fixed installation of lens, design reflectivity plate on the axis of lens antenna in addition, control reflecting plate around the reciprocally swinging of the axis of lens, thereby realize the scanning probe function in radar work.
Useful technique effect of the present invention embodies in the following areas:
1. utilize integrated design technology to realize the Integrated design of lens, feed and mounting interface, simple and compact for structure;
2. utilize reflecting plate axis of swing and lens antenna coaxial, drive reflecting plate to swing and realize antenna scanning function.Because reflecting plate is thin-slab construction body, quality is much smaller than the quality of lens antenna, so that the power demand that reflecting plate swings much smaller than the power that drives reflecting body;
Reflecting plate rotatablely move for around axis suitable/be rotated counterclockwise, sports bag winding thread is the right cylinder of axis and lens antenna axis coaxle, thereby makes space envelope body much smaller than the enveloping space of antenna movement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is for adopting integrated lens antenna structure view.
The integrated lens antenna structural representation of Fig. 3.
Fig. 4 is I place enlarged drawing in Fig. 3.
Fig. 5 is II place enlarged drawing in Fig. 3.
Sequence number in upper figure: antenna 1, reflecting plate 2, servomotor 3, antenna installation stent 4, motor mounting rack 5, housing 11, annular pressing plate 12, phacoid 13, feed 14.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
embodiment 1
Referring to Fig. 1, the radar scanner that adopts antenna to combine with reflecting plate comprises antenna 1 and reflecting mechanism.Antenna 1 is parabola antenna, and wavelength is 3mm.Reflecting mechanism comprises reflecting plate 2 and servomotor 3.The Phase Equivalent face of the reflecting surface of reflecting plate 2 and antenna 1 is corresponding, and the back side of reflecting plate 2 is being fixedly connected with the output shaft of servomotor 3, and the angle between reflecting plate 2 and the output shaft of servomotor 3 is 45 degree, the axis coaxle of the output shaft of servomotor 3 and antenna 1.Phase Equivalent face and the spacing between reflecting plate 2 of antenna 1 are 450mm, are 150 times of wavelength; Reflecting plate 2 is realized the swing of-60 ~+60 degree angular regions under the drive of servomotor 3, realizes the scan function of antenna 1.
During use, integrated lens antenna is arranged on respectively on aircraft installed surface by motor mounting rack 5 by the servomotor 3 of antenna installation stent 4, reflecting mechanism.
embodiment 2
Referring to Fig. 2, the radar scanner that adopts antenna to combine with reflecting plate comprises antenna 1 and reflecting mechanism.The integrated lens antenna of antenna 1, its wavelength is 3mm, Phase Equivalent face and the spacing between reflecting plate 2 of antenna 1 are 450mm, are 150 times of wavelength.Referring to Fig. 3, Fig. 4 and Fig. 5, integrated lens antenna comprises housing 11, annular pressing plate 12, phacoid 13 and feed 14.Housing 11 is tubaeform, and feed 14 is fixedly installed in the smaller diameter end of housing 11, and phacoid 13 is fixedly installed in the larger diameter end of housing 11 by annular pressing plate 12, and phacoid 13 is convex lens.Integrated lens antenna makes this radar scanner compare similar mechanism to have the advantages such as volume is little, quality is light, system inertia is little, driving power is low, and sports envelope space is little.
The other the same as in Example 1.
embodiment 3
The radar scanner that adopts antenna to combine with reflecting plate comprises antenna 1 and reflecting mechanism.Antenna 1 is plate aerial, and its wavelength is 30mm, and Phase Equivalent face and the spacing between reflecting plate 2 of antenna 1 are 450mm, is 15 times of wavelength.
The other the same as in Example 1.
Claims (5)
1. the radar scanner that adopts antenna to combine with reflecting plate, comprises antenna, it is characterized in that: also comprise reflecting mechanism, described reflecting mechanism comprises reflecting plate and servomotor; The Phase Equivalent face of the reflecting surface of described reflecting plate and antenna is corresponding; The back side of reflecting plate is being fixedly connected with the output shaft of servomotor, and the angle between reflecting plate and the output shaft of servomotor is 30~50 degree, the output shaft of servomotor and the axis coaxle of antenna; The Phase Equivalent face of described antenna and the spacing between reflecting plate are greater than the bore of antenna, are the integral multiple of wavelength; Reflecting plate, at the drive lower swing of servomotor, is realized the scan function of antenna.
2. the radar scanner that employing antenna according to claim 1 combines with reflecting plate, is characterized in that: described antenna is lens antenna, plate aerial or parabola antenna.
3. the radar scanner that employing antenna according to claim 1 combines with reflecting plate, is characterized in that: reflecting plate is realized the swing of-60~+ 60 degree angular regions under the drive of servomotor.
4. the radar scanner that employing antenna according to claim 1 combines with reflecting plate, is characterized in that: the angle between reflecting plate and the output shaft of servomotor is 45 degree.
5. the radar scanner that employing antenna according to claim 2 combines with reflecting plate, is characterized in that: the integrated lens antenna of described lens antenna, comprises feed, housing and phacoid; Described housing is tubaeform, and described feed is fixed at the smaller diameter end of housing, and described phacoid is fixed at the larger diameter end of housing; Described phacoid is convex lens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410383043.2A CN104142493A (en) | 2014-08-06 | 2014-08-06 | Radar scanning device with antenna and reflector combined |
Applications Claiming Priority (1)
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CN201410383043.2A CN104142493A (en) | 2014-08-06 | 2014-08-06 | Radar scanning device with antenna and reflector combined |
Publications (1)
Publication Number | Publication Date |
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CN104142493A true CN104142493A (en) | 2014-11-12 |
Family
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CN201410383043.2A Pending CN104142493A (en) | 2014-08-06 | 2014-08-06 | Radar scanning device with antenna and reflector combined |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0840140A1 (en) * | 1996-11-01 | 1998-05-06 | Honda Giken Kogyo Kabushiki Kaisha | Antenna apparatus |
CN2509740Y (en) * | 2001-11-05 | 2002-09-04 | ***电子第五十四研究所 | Weather rader antenna servomechanism installation with high performance |
CN1835287A (en) * | 2005-03-15 | 2006-09-20 | 智易科技股份有限公司 | Multi-frequency antenna device with reflector |
CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
CN204065402U (en) * | 2014-08-06 | 2014-12-31 | 安徽四创电子股份有限公司 | Adopt the radar scanner that antenna combines with reflecting plate |
-
2014
- 2014-08-06 CN CN201410383043.2A patent/CN104142493A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0840140A1 (en) * | 1996-11-01 | 1998-05-06 | Honda Giken Kogyo Kabushiki Kaisha | Antenna apparatus |
CN2509740Y (en) * | 2001-11-05 | 2002-09-04 | ***电子第五十四研究所 | Weather rader antenna servomechanism installation with high performance |
CN1835287A (en) * | 2005-03-15 | 2006-09-20 | 智易科技股份有限公司 | Multi-frequency antenna device with reflector |
CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
CN204065402U (en) * | 2014-08-06 | 2014-12-31 | 安徽四创电子股份有限公司 | Adopt the radar scanner that antenna combines with reflecting plate |
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Application publication date: 20141112 |