CN110391499A - Wide angle beam scanning reflector antenna - Google Patents
Wide angle beam scanning reflector antenna Download PDFInfo
- Publication number
- CN110391499A CN110391499A CN201910704729.XA CN201910704729A CN110391499A CN 110391499 A CN110391499 A CN 110391499A CN 201910704729 A CN201910704729 A CN 201910704729A CN 110391499 A CN110391499 A CN 110391499A
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- antenna
- sputtering plates
- feed
- reflecting surface
- reflector antenna
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Classifications
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- 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
- H01Q19/18—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 having two or more spaced reflecting surfaces
- H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
-
- 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
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- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A kind of wide angle beam scanning reflector antenna disclosed by the invention, it is desirable to provide one kind is low in energy consumption, efficiency of transmission is high, the unrestricted reflector antenna of polarization mode.The technical scheme is that: the connected elevation servo mechanism of azimuth servomechanism constitutes combined two dimensional servomechanism, and sputtering plates (3) are connected on two dimensional servomechanism, feed (4) is fixed by the center that waveguide feeder (10) is fixed on sputtering plates；The lower section of sputtering plates is equipped with the reflecting surface (2) connected by the bending structure part (9) being fixedly mounted on antenna platform (1), azimuth servomechanism drives elevation servo mechanism, it drives sputtering plates to rotate around azimuth spin axis (7) and pitching rotation axis (8), realizes the pitching face limited scanning and azimuth plane large-angle scanning of antenna beam；After electromagnetic wave is sent reflecting surface by feed, reflection of electromagnetic wave, which defocuses, to be projected on sputtering plates, is gone out after the mirror reflection of sputtering plates, then by electromagnetic radiation.
Description
Technical field
The present invention relates to one kind to be widely used in communication, radar, microwave communication, satellite communication and tracking and remote sensing etc.
The reflector antenna of every field.Pass through rotatable sputtering plate more particularly, the present invention relate to a kind of feed is fixed
Realize the reflector antenna of azimuth plane wave beam large-angle scanning.
Background technique
In recent years, reflector antenna has become the mainstay in satellite communication.However the technologies such as satellite communication are to double
Reflector antenna proposes very high large-angle scanning performance requirement, it is desirable that the antenna is in biggish large-angle scanning range, radiation
The too big distortion of directional diagram, gain loss very little, minor level are met the requirements.Especially mechanical scanning reflector antenna, requires
Think over the details of Machine Design.Even if reflecting surface must also design and manufacture under dynamic duty and various environmental conditions
At the stringent tolerance for being able to satisfy ideal surfaced.Secondly, the installation of feed must make its phase center in the focus of reflecting surface,
And precisely align the center of reflecting surface.Feed source bracket structure and the subsequent support construction of reflecting surface must in antenna scanning or rotation
Required rigidity must be kept, so that the decline of radiance is minimum.In order to reduce windage and weight, many reflectings surface are designed as
Tubulose grid or line meshy surface, select as big as possible by the size in hole.In either case, to used polarization side
Formula, gap S is necessarily less than λ/2 in the face H, so as to be in off state when electromagnetic energy is passed through.
Reflector antenna has many structures, common are plane, angle, single-curved surface hyperboloid, single reflection face and multiple reflection
Face etc..Reflector antenna is mainly made of feed and reflecting surface two parts, is commonly divided into single reflection plane system and double-reflecting face
System.According to simple feed, then single reflection surface antenna should be paraboloidal or its deformation, so that bore obtains swashing for same phase
It encourages.Dual reflector antenna usually has biggish flexibility, and compared with single reflection face, dual reflector antenna is had the advantage that
(1), since there are two reflectings surface for antenna, geometric parameter increases, convenient for flexibly being designed according to various needs；It (2), can be with
Using short focus paraboloid as primary reflection surface, the longitudinal size of antenna is reduced；(3), due to using subreflector, feed
It may be mounted near parabola vertex, shorten the transmission line between feed and receiver, reduce transmission line loss and made
At noise.Transmission loss is reflection and the measurement for absorbing institute's off-energy.Scatter energy energy loss related with binding site
Spherical scattering is fallen.Multiple reflection plane system is the synthesis in multiple single reflection faces.Structure actually required is mainly by applying
Place and desired antenna pattern are determined.
Reflector antenna is classified by antenna pattern, reflecting surface curved form or feed type.There are two types of fundamental forms
Formula: single reflection face and dual reflector antenna.But deteriorate since the reflex of reflecting surface will lead to Feed Horn stationary wave characteristic,
And the effect of blocking of feed system and its support construction can also make gain and beam efficiency decline and sidelobe level and intersection
Polarization signal increases.In the lesser antenna system of reflecting surface, be such as used in, more waves in low orbit mobile satellite communication system
Beam antenna or Beam width changeable antenna for scanning radar, this influence can be more serious.In order to overcome rotational symmetry reflecting surface day
Weakness in cable architecture, a kind of reflecting surface structure of improvement --- offset reflector antenna comes into being.Offset reflector antenna
Essence be the radiation area for feed and minor face being removed primary reflection surface, eliminate their blockings to interarea.For example, offset parabola
Antenna is that an oval part is intercepted from general symmetrical rotary parabola antenna, this oval part is in antenna focal plane
It is projected as a circle, and its focus is normally at outside circle.Biasing reflecting surface is to avoid feed using a part in symmetric reflective face
And its strut blocks, and so not only eliminates the raising of the sidelobe level as caused by blocking, and improves the input electricity of feed
Press standing-wave ratio.But the structure biased simultaneously destroys the structural symmetry of reflecting surface, and cross polarization rising and wave beam is caused to incline
Tiltedly.Especially feed off-focal, when antenna realizes the scanning of assigned direction, what this asymmetry embodied is become apparent.In
In actual application, in multibeam antenna and scanning radar antenna, generally requiring makes the main lobe of antenna deviate paraboloid axial direction
Make up and down or swing or lobe around parabolic axis makees conical motion, scans lobe in small angle range, with
Achieve the purpose that search and track target.Paraboloidal effect is to keep the ray for putting focal irradiation source sending anti-through paraboloid
All become infinite ray after penetrating.If reflecting surface uses metallic mirror surface, the ray being at this moment incident on above it is all reflected and is not had
There is significant loss.The interarea and minor face of antenna are the paraboloid and hyperboloid for the circular cone interception rotational symmetry that vertex is located at focus
Obtained by (ellipsoid).Feed is normally on the remote virtual focus of minor face.From feed issue spherical electromagnetic wave, through ellipsoid (or
Hyperboloid) after reflection, after becoming another spherical wave issued from the perifocus of minor face, then reflection through putting on paraboloid, formed
Plane wave reaches bore face.Either single parabolic antenna or dual reflector antenna, they are all feed with wide direction figure
The electromagnetic wave given off is converted into the electromagnetic wave of narrow directional diagram.Reflector shape is not stringent paraboloid；Feed radiates not
It is spherical wave；The radiation of feed cannot be guaranteed the distribution of paraboloid aperture field constant amplitude and make a part of power from bore edge leak；
Feed and its support rod blocking to bore.Can also aperture efficiency be caused to decline if feed inaccuracy is placed in parabolic focus；
But intentionally change the direction and width of antenna beam using feed off-focal sometimes.When feed is perpendicular to paraboloid focal axis
When making downward shift, wave beam maximum direction will be directed toward the side opposite with feed offset direction；When feed makees front and back partially along focal axis
When shifting, then beam-broadening.However this kind of offset cannot be too big, otherwise leads to the Severe distortion of beam shape, deviates bigger, gain
It is lower.
In satellite communication, in order to realize large-angle scanning, the number of feed array element needed for reducing antenna during the scanning process
Mesh improves the utilization efficiency of energy and meets particular orientation figure in other words in the case where feed array element number is given
The requirement of shape needs to carry out figuration to the antenna pattern of antenna.Generally reflecting surface is carried out according to required directional diagram
Figuration.Figuration can only generally be realized by changing feed or reflector shape.The efficiency of reflector antenna includes multiple effects
The rate factor, mainly has: capture efficiency, efficiency of transmission, aperture efficiency, cross polarization efficiency, interarea tolerance efficiency.This five factors
Product be exactly the total efficiency of reflecting surface approximation.When feed irradiates reflecting surface, some energy crosses reflecting face edge
It directly is radiated space, so while considering the bore utilization efficiency of reflecting surface, it is necessary to consider the energy leakage of feed
Mistake problem.Capture efficiency refers to that from all energy that feed gives off, how many is intercepted and captured by reflecting surface.If it is bireflectance
Face is then minor face capture efficiency.The performance quality of the Feed Design no less important of parabola antenna, feed largely restricts
The performance of reflector antenna, efficient feed inherently effectively improve the overall performance of reflector antenna.Therefore, to feed
It proposes claimed below:
(1) feed should have phase center, and the wave issued from the point is considered as spherical wave, reach bore face through reflective surface
Shi Xiangwei is uniformly distributed.
(2) feed directional diagram should have Sidelobe and low-cross polarization, and excessive minor lobe or back lobe will affect antenna
Performance, so that gain declines, minor lobe is got higher；Cross polarization level is usually less than -30dB.
(3) feed should have lesser bore and volume, and the feed of the electromagnetic wave of reflection is blocked in reduction.
(4) feed should have certain bandwidth of operation, and the bandwidth of parabola antenna depends on the bandwidth of feed.In reality
In the design process of border, feed is difficult to find a determining phase center, frequently with the electromagnetic horn of Approximate radiative spherical wave, and
Its displaced phase center is placed at focus F.Keep feed maximum to the illumination efficiency of minor face, the beam position of feed should be
The line direction of feed and minor face center, and from the point of view of equivalent parabola angle, the cross polarization of antenna aperture field can be increased in this way
Component: will make the cross polar component of antenna aperture field to minimum, should make feed beam position and equivalent parabola it is symmetrical
Overlapping of axles, and to minor face, the leakage that will cause feed energy again in this way is penetrated, even more so that most of energy shines less than in minor face.
The wide angle beam scanning of communication system reflector antenna is realized generally by reflector antenna unitary rotation.Instead
It penetrates face and feed is fixed on orientation/pitching mounting (A/E mounting), drive mounting rotation to realize that wave beam is swept by motor servo
It retouches, and the Non-rotating structural of mounting is fixed on communication system antenna platform.Since feed needs to rotate, signal transmission passage
In, it is necessary to increase radio frequency rotary joint, takes into account the demand of signal transmission and channel rotation.One shaft of every increase, it is necessary to
Increase a rotary joint.Usually to realize beam positional/pitching two-dimensional scanning, a path channels of antenna just need two rotations
Joint, channel quantity increase, and rotary joint demand will be multiplied.The core of rotary joint is the revolution of quasi-coaxial transmission line
Body structure, performance is closely related with bandwidth with working frequency, and frequency is higher, and performance is poorer.In order to improve the performance of communication system,
Transmission loss of the reduction feed to power amplifier, it will usually power amplifier is mounted on A/E mounting, increase servo-drive
Load, increases the power consumption of antenna.Inversion Cassegrain antenna in radar system realizes wave beam by the rotation of Twist Reflector
Large-angle scanning, and feed and reflecting surface are fixed, feed connects T/R channel, and does not need to introduce rotary joint therebetween.The day
One distinguishing feature of line is that polarization mode application is limited, is only applicable to linear polarization application.The reason is that being inverted Cassegrain
The reflecting surface of antenna has the characteristic of Polarization selection, and the linear polarization direction of incident electromagnetic wave is parallel with the wire on reflecting surface,
Then electromagnetic wave all reflects, and the linear polarization direction of incident electromagnetic wave is vertical with the wire on reflecting surface, then electromagnetic wave
All transmit away.And Twist Reflector has, and has not only changed back wave direction, but also polarization direction turns round the function turning 90 degrees, and passes through
Wire reflection electromagnetic wave, then by Twist Reflector reflection after, transmitted through wire, can realize the orientation spoke of antenna
It penetrates.After the completion of the preset parameter design for biasing Cassegrain dual reflector antenna, beam scanning can be realized by the defocusing of feed,
But it during the scanning process, needs to the position of feed in antenna system and feed for a certain specific scanning angle to minor face
It is best direction be determined.
Summary of the invention
Task of the present invention is place in view of the shortcomings of the prior art, provides a kind of light-weight, low in energy consumption, efficiency of transmission
High, the unrestricted reflector antenna of polarization mode.
The present invention realizes that technical solution used by above-mentioned purpose is: a kind of width angle beam scanning reflector antenna, including,
The azimuth servomechanism 5 and elevation servo mechanism 6 being fixed on antenna platform 1, connect firmly the feed on waveguide feeder 10
4, which is characterized in that the elevation servo mechanism 6 that is connected of azimuth servomechanism 5 constitutes combined two dimensional servomechanism, and two dimension is watched
It takes and is connected with sputtering plates 3 in mechanism, feed 4 is solid by the center that the waveguide flange of waveguide feeder 10 is fixed on sputtering plates 3
It is fixed motionless；The lower section of sputtering plates 3 is equipped with the reflecting surface 2 connected by the bending structure part 9 being fixedly mounted on antenna platform 1,
Azimuth servomechanism 5 drives elevation servo mechanism 6, and sputtering plates 3 is driven to rotate around azimuth spin axis 7 and pitching rotation axis 8,
Realize the pitching face limited scanning and azimuth plane large-angle scanning of antenna beam；After electromagnetic wave is sent reflecting surface 2 by feed 4, electricity
Magnetic wave reflection, which defocuses, to be projected on sputtering plates 3, is gone out after the mirror reflection of sputtering plates 3, then by electromagnetic radiation.
The present invention has the advantages that compared with the prior art
1. antenna weights are light.Feed 4 and reflecting surface 2 are fixedly mounted on antenna platform 1 by the present invention, and antenna does not need whole turn
Dynamic, feed is fixed, does not need rotary joint, can be achieved with wide angle beam scanning, reduces Films In Passive Microwave Devices；Secondly,
The not traditional A/E mounting of antenna greatly reduces to structural member demand.Therefore, antenna weights are light.
2. antenna is low in energy consumption.Sputtering plates 3 are fixed on the rotor of elevation servo mechanism 6 by the present invention, antenna servo motor
Sputtering plates 3 are directly driven, and do not have to drive the traditional antennas loads such as entire antenna, driving member, A/E mounting, power amplifier.Therefore, originally
Antenna servo motor driven load is low, servo motor it is low in energy consumption, i.e., antenna is low in energy consumption.
3. antenna transmission is high-efficient.The present invention realizes beam scanning by the rotation of sputtering plates 3, and feed 4 is fixed, is not required to
To increase radio frequency rotary joint in feeding line portion, reduce feeder line loss.When antenna beam scanning works, feed 4 is fixed.
It is rotated by elevation servo mechanism 6 and sputtering plates 3 along azimuth spin axis 7, azimuth beam scanning angle is that 3 orientation of sputtering plates turns
1 times of dynamic angle, individually rotates along pitching rotation axis 8, realizes the pitching limited scanning of antenna beam, and pitching beam scanning
Angle is 2 times of 3 pitch rotation angle of sputtering plates, to improve antenna transmission efficiency.
4. polarization mode is unrestricted.The present invention passes through the electromagnetic wave that sputtering plates 3 reflect, and goes out from side radiation, without
Reflecting surface 2 is crossed, the polarization mode of Antenna Operation is unrestricted.Therefore, antenna can be worked with complete polarization.In large-angle scanning range
Interior, the azimuth beam scanning angle of reflecting surface 2 is 1 times of 3 orientation rotational angle of sputtering plates, is formed by directional diagram without big abnormal
Become, gain loss very little.
5. antenna is at low cost.The present invention sets the bending knot by being fixedly mounted on antenna platform 1 in the lower section of sputtering plates 3
The reflecting surface 2 that component 9 connects is rotated by motor direct-drive sputtering plates 3 and realizes beam scanning, and feed is fixed, is not required to
Traditional radio frequency rotary joint, A/E mounting, driving member, high power motor etc. are wanted, occupies little space, is at low cost, bore utilizes effect
Rate is high.Therefore, antenna is at low cost.
The present invention is especially suitable for the uses of low-orbit satellite inter-satellite link communication payload.
Detailed description of the invention
Specific structure of the invention is provided by implementation below and its attached drawing.
Fig. 1 is the working state structure schematic diagram of the novel wide angle beam scanning reflector antenna of the present invention.
In figure: 1 antenna platform, 2 reflectings surface, 3 sputtering plates, 4 feeds, 5 azimuth servomechanisms, 6 elevation servo mechanisms, 7 sides
Position rotation axis, 8 pitching rotation axis, 9 bending structure parts, 10 feeder line waveguides.
Specific embodiment
Refering to fig. 1.In the embodiment described below, a kind of wide angle beam scanning reflector antenna, including, installation is fixed
Azimuth servomechanism 5 and elevation servo mechanism 6 on antenna platform 1, connect firmly the feed 4 on waveguide feeder 10, feature
It is, the elevation servo mechanism 6 that is connected of azimuth servomechanism 5 constitutes combined two dimensional servomechanism, and on two dimensional servomechanism
Sputtering plates 3 are connected with, feed 4 is fixed by the center that the waveguide flange of waveguide feeder 10 is fixed on sputtering plates 3；It splashes
The lower section for penetrating plate 3 is equipped with the reflecting surface 2 connected by the bending structure part 9 being fixedly mounted on antenna platform 1, bearing servo machine
Structure 5 drives elevation servo mechanism 6, and sputtering plates 3 is driven to rotate around azimuth spin axis 7 and pitching rotation axis 8, realizes antenna wave
The pitching face limited scanning and azimuth plane large-angle scanning of beam；After electromagnetic wave is sent reflecting surface 2 by feed 4, reflection of electromagnetic wave dissipates
Coke projects on sputtering plates 3, goes out after the mirror reflection of sputtering plates 3, then by electromagnetic radiation.
Reflecting surface 2 is paraboloid, and burnt diameter ratio is greater than 0.5, and bore face is intersected by paraboloid with cylindrical body.Reflecting surface 2
The lower section of sputtering plates 3 is connected to by the bending structure part 9 being fixed on antenna platform 1.
The phase center of feed 4 is placed in the focus of reflecting surface 2, rigid with the feeder line waveguide 10 that is fixed on antenna platform 1
Property connection.
Feed 4 passes through sputtering plates 3 by way of the aperture on sputtering plates 3, and the Assurance of Size sputtering plates 3 of aperture are turning
During dynamic not with 4 physical interference of feed.
Sputtering plates 3 are fixed on the rotor of elevation servo mechanism 6, can be along 8 axis limited angle rotating of pitching rotary shaft.It splashes
Penetrating plate 3 is plate, and bore facial contour is ellipse, and elliptical minor axis length is greater than the radius in 2 mouthfuls of faces of reflecting surface, and long axis length is big
In at least 1.4 times of 2 mouthfuls of radius surfaces of reflecting surface.
The vertical range in 3 aperture centre of sputtering plates and 2 mouthfuls of faces of reflecting surface is greater than the focal length of reflecting surface 2, and specific distance is by splashing
The pitch rotation angle for penetrating plate 3 determines, determines that principle is to avoid blocking principle, that is, reflecting surface 2 is avoided to block the reflection of sputtering plates 3
Electromagnetic wave.
Sputtering plates 3 and the assembly of elevation servo mechanism 6 are fixed on the rotor of azimuth servomechanism 5, can be revolved along orientation
Shaft axis 7 rotates ± 90 °.
The working principle of the invention is: when transmitting working condition, after electromagnetic wave is sent reflecting surface 2 by feed 4, and electromagnetic wave
Reflection, which defocuses, to be projected again on sputtering plates 3, is gone out after the mirror reflection of sputtering plates 3, then by electromagnetic radiation.Receive process
Working principle is just opposite with emission process.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
Kind is corresponding to be changed and deforms, and all these change and deform the protection model that all should belong to the claims in the present invention
Within enclosing.
Claims (10)
1. a kind of width angle beam scanning reflector antenna, including, the azimuth servomechanism being fixed on antenna platform (1)
(5) and elevation servo mechanism (6), the feed (4) on waveguide feeder (10) is connected firmly, which is characterized in that azimuth servomechanism (5)
The combined two dimensional servomechanism of elevation servo mechanism (6) composition that is connected, and sputtering plates (3) are connected on two dimensional servomechanism,
Feed (4) is fixed by the center that the waveguide flange of waveguide feeder (10) is fixed on sputtering plates (3)；Sputtering plates (3)
Lower section be equipped with the reflecting surface (2) connected by the bending structure part (9) that is fixedly mounted on antenna platform (1), bearing servo
Mechanism (5) drives elevation servo mechanism (6), and sputtering plates (3) is driven to revolve around azimuth spin axis (7) and pitching rotation axis (8)
Turn, realizes the pitching face limited scanning and azimuth plane large-angle scanning of antenna beam；Electromagnetic wave is sent reflecting surface by feed (4)
(2) after, reflection of electromagnetic wave, which defocuses, to be projected on sputtering plates (3), is sent out after the mirror reflection of sputtering plates (3), then by electromagnetic wave
It is shot out.
2. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: reflecting surface (2) is paraboloid, burnt
Diameter ratio is greater than 0.5, and bore face is intersected by paraboloid with cylindrical body.
3. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: reflecting surface (2) is by being fixed on
Bending structure part (9) on antenna platform (1) is connected to the lower section of sputtering plates (3).
4. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: the phase center of feed (4) is set
In in the focus of reflecting surface (2), it is rigidly connected with the feeder line waveguide (10) being fixed on antenna platform (1).
5. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: feed (4) is by sputtering plates
(3) mode of aperture on, pass through sputtering plates (3), the Assurance of Size sputtering plates (3) of aperture during rotation not with feed (4)
Physical interference.
6. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: sputtering plates (3) are fixed on pitching
On the rotor of servo mechanism (6), along pitching rotary shaft (8) axis limited angle rotating.
7. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: sputtering plates (3) are plate, bore
Facial contour is ellipse, and elliptical minor axis length is greater than the radius in reflecting surface (2) mouth face, and long axis length is greater than reflecting surface (2) mouth
At least 1.4 times of radius surface.
8. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that:, the aperture centre of sputtering plates (3)
It is greater than the focal length of reflecting surface (2) with the vertical range in reflecting surface (2) mouth face.
9. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: sputtering plates (3) and elevation servo
The assembly of mechanism (6) is fixed on the rotor of azimuth servomechanism (5), can rotate ± 90 ° along azimuth spin axis (7).
10. width angle beam scanning reflector antenna as described in claim 1, it is characterised in that: when transmitting working condition, feed
After electromagnetic wave is sent reflecting surface 2 by 4, reflection of electromagnetic wave, which defocuses, to be projected again on sputtering plates 3, and the mirror image by sputtering plates 3 is anti-
After penetrating, then electromagnetic radiation gone out, receive process working principle and above-mentioned emission process are just opposite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910704729.XA CN110391499A (en) | 2019-07-31 | 2019-07-31 | Wide angle beam scanning reflector antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910704729.XA CN110391499A (en) | 2019-07-31 | 2019-07-31 | Wide angle beam scanning reflector antenna |
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| CN110391499A true CN110391499A (en) | 2019-10-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211404A (en) * | 2020-03-23 | 2020-05-29 | 成都华芯天微科技有限公司 | Low-profile scannable planar reflective array antenna system with rotating subreflector and scanning method |
| CN112350073A (en) * | 2020-09-29 | 2021-02-09 | 北京理工大学 | Ultra-large-diameter reflecting antenna based on secondary mirror array |
| CN113131224A (en) * | 2020-01-16 | 2021-07-16 | 华为技术有限公司 | Antenna beam propagation direction adjustment system |
| CN114725677A (en) * | 2022-03-14 | 2022-07-08 | 中国电子科技集团公司第十四研究所 | Novel wide waveguide feed structure based on variable wavefront |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3237484A1 (en) * | 1982-10-09 | 1984-04-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Radar antenna and method for spatial scanning using such an antenna |
| JPH05114816A (en) * | 1991-07-26 | 1993-05-07 | Fujitsu Ltd | Antenna system |
| CN102576925A (en) * | 2007-03-16 | 2012-07-11 | 移动卫星有限公司 | A vehicle mounted antenna and methods for transmitting and/or receiving signals |
| EP2584650A1 (en) * | 2011-10-17 | 2013-04-24 | MacDonald, Dettwiler and Associates Corporation | Wide scan steerable antenna with no key-hole |
-
2019
- 2019-07-31 CN CN201910704729.XA patent/CN110391499A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3237484A1 (en) * | 1982-10-09 | 1984-04-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Radar antenna and method for spatial scanning using such an antenna |
| JPH05114816A (en) * | 1991-07-26 | 1993-05-07 | Fujitsu Ltd | Antenna system |
| CN102576925A (en) * | 2007-03-16 | 2012-07-11 | 移动卫星有限公司 | A vehicle mounted antenna and methods for transmitting and/or receiving signals |
| EP2584650A1 (en) * | 2011-10-17 | 2013-04-24 | MacDonald, Dettwiler and Associates Corporation | Wide scan steerable antenna with no key-hole |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131224A (en) * | 2020-01-16 | 2021-07-16 | 华为技术有限公司 | Antenna beam propagation direction adjustment system |
| CN113131224B (en) * | 2020-01-16 | 2022-08-19 | 华为技术有限公司 | Antenna beam propagation direction adjustment system |
| CN111211404A (en) * | 2020-03-23 | 2020-05-29 | 成都华芯天微科技有限公司 | Low-profile scannable planar reflective array antenna system with rotating subreflector and scanning method |
| CN115051143A (en) * | 2020-03-23 | 2022-09-13 | 成都华芯天微科技有限公司 | Design method of high-gain planar transmitting array antenna system |
| CN115051143B (en) * | 2020-03-23 | 2023-03-28 | 成都华芯天微科技有限公司 | Scanning method based on high-gain planar transmitting array antenna system |
| CN111211404B (en) * | 2020-03-23 | 2024-05-14 | 成都华芯天微科技有限公司 | Low-profile scannable planar reflective array antenna system with rotary sub-reflecting surface and scanning method |
| CN112350073A (en) * | 2020-09-29 | 2021-02-09 | 北京理工大学 | Ultra-large-diameter reflecting antenna based on secondary mirror array |
| CN112350073B (en) * | 2020-09-29 | 2021-11-26 | 北京理工大学 | Ultra-large-diameter reflecting antenna based on secondary mirror array |
| CN114725677A (en) * | 2022-03-14 | 2022-07-08 | 中国电子科技集团公司第十四研究所 | Novel wide waveguide feed structure based on variable wavefront |
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Application publication date: 20191029 |