CN106207419A - A kind of dual circularly polarized antenna unit and big spacing low graing lobe broadband flat plate array antenna - Google Patents
A kind of dual circularly polarized antenna unit and big spacing low graing lobe broadband flat plate array antenna Download PDFInfo
- Publication number
- CN106207419A CN106207419A CN201610808414.6A CN201610808414A CN106207419A CN 106207419 A CN106207419 A CN 106207419A CN 201610808414 A CN201610808414 A CN 201610808414A CN 106207419 A CN106207419 A CN 106207419A
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- Prior art keywords
- dividing plate
- double
- feed port
- grating lobe
- lobe suppression
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- 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
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
Abstract
The invention discloses a kind of dual circularly polarized antenna unit and big spacing low graing lobe flat plate array antenna, array antenna includes dual circularly polarized antenna unit and feeding network, dual circularly polarized antenna unit includes dual polarised radiation cavity, circular polarisation dividing plate phase shifter, grating lobe suppression dividing plate, aerial radiation mouth, left-hand circular polarization feed port and right-handed circular polarization feed port, and be respectively connected with left-hand circular polarization feed port and right-handed circular polarization feed port by the feeding network of double-deck micro-strip or double-deck waveguide, formed and beam signal.The present invention loads cross metal partion (metp) at aerial radiation mouth, can realize good grating lobe suppression effect.The present invention can be used for radar, communicate, the gain such as navigation higher, in the antenna that transmit-receive sharing, directionality are strong, it is a kind of under big unit spacing, the high efficiency array antenna of double-circle polarization of low graing lobe, the circular polarisation phased array antenna of electron beam scanning can be can be additionally used in by extension as single receipts, single-shot or transmit-receive sharing array.
Description
Technical field
The field that present invention design relates to is electronic information field, can be used for the gains such as radar, communication, observing and controlling higher, double
In the fixed beam antenna that polarization shares, directionality is strong, for a kind of high efficiency big spacing, low graing lobe, broadband double-circle polarization battle array
Array antenna, by extension, it may also be used for the circular polarisation phased array antenna of electron beam scanning.
Background technology
In electronic information, traditional array realizes the mode of the low graing lobe of big spacing to be had multiple, but each dwi hastasana
Formula has respective characteristic and pluses and minuses, is embodied in following characteristics:
1, big spacing is arranged array aperiodic.Bigbore antenna element is used to carry out group battle array aperiodic, by antenna element
The zero of lobe is deep and the graing lobe aligned in position of aerial array array factor, and to carry out grating lobe suppression, this method is in the beamwidth of antenna relatively
Having certain advantage time narrow, but the level of the bandwidth of antenna and graing lobe is limited by antenna aperture, grating lobe suppression is also paid no attention to
Think, and be unfavorable for realizing broadband circle polarized signal.
2, battle array aperiodic that equidimension unit does not forms.Use various sizes of unit on front, be arranged in donut
On, the radiating element on same annulus has identical radiation size.This aperiodic have employed cellar area relatively in array
Greatly, the unit that directivity is higher, higher module gain can be obtained, and the number of unit required for front can be reduced.But battle array
Row different piece uses different unit intervals and various sizes of unit, and for large-scale array, its design and construction can be compared
Complicated.
3, battle array aperiodic of random staggered submatrix composition.In this kind of front, between all unit of same submatrix are with grade
Away from regularly arranged.Choosing of each submatrix practical structures make use of random number generation technology, and the arrangement for array introduces non-week
Phase property, choosing of submatrix spacing makes submatrix center constitute well-regulated grid.Such a configuration reduce number of unit and inhibit
Graing lobe, aperture efficiency is higher.But in this array structure, unit interval only has half wavelength, and when array scale is the biggest
Time, the submatrix number of division is more, and this random cross structure may increase the complexity of system feeding network.
Summary of the invention
The present invention has the realization approach being totally different from above-mentioned several circular polarization wide beam array antenna, it is provided that Yi Zhong great
Under the conditions of unit interval, it is achieved the double-circle polarization flat plate array antenna of broadband, and use grating lobe suppression measure, can effective suppressor
Lobe, and shortcoming present in above antenna can be overcome.
For solving problem above, the technical solution adopted in the present invention is: a kind of dual circularly polarized antenna unit includes graing lobe
Suppression dividing plate 4, dual polarised radiation cavity 5, step-like circular polarisation dividing plate phase shifter 3 and aerial radiation mouth 6, aerial radiation mouth 6
Bottom be connected with dual polarised radiation cavity 5, the centrage of dual polarised radiation cavity 5 sidewall is provided with circular polarisation dividing plate move
Phase device 3, the feed port of dual polarised radiation cavity 5 is divided into left-hand circular polarization feed port 7 and the right side by the circular polarisation dividing plate phase shifter 3
Hand circular polarization feed port 8；The metallic membrane that grating lobe suppression dividing plate 4 is arranged for decussation, the centrage of grating lobe suppression dividing plate 4
Coincide with the centrage of aerial radiation mouth 6, the edge envelope shape of grating lobe suppression dividing plate 4 and the inwall phase of aerial radiation mouth 6
With and be fixedly connected on the upper inside wall of aerial radiation mouth 6, the inwall chi of the width of grating lobe suppression dividing plate 4 and aerial radiation mouth 6
Very little identical.
Wherein, described aerial radiation mouth 6 is circular or square waveguide openings, including for arrange grating lobe suppression every
The top of plate 4 and the changeover portion between grating lobe suppression dividing plate 4 and dual polarised radiation cavity 5, changeover portion is taper, ladder platform
Scalariform or circle rectangle；For arranging the bottom, top of grating lobe suppression dividing plate 4 by tapering transition section, stair-step shape changeover portion
Or circle rectangular transition section is connected with dual polarised radiation cavity 5.
Wherein, a size of 1.0 to 2.5 times wavelength of the actinal surface of described aerial radiation mouth 6；The circular polarisation dividing plate phase shifter 3
Whole height is 1.0 to 2.0 times of wavelength.
Wherein, described grating lobe suppression dividing plate 4 is by being spirally connected or welding manner is fixedly connected on the interior of aerial radiation mouth 6
Wall.
A kind of big spacing low graing lobe broadband double-circle polarization flat plate array antenna, including m × n dual circularly polarized antenna unit 2
And feeding network, wherein m, n are the natural number more than 1；Described feeding network be double-deck micro-strip, double-deck E face waveguide or
Double-deck H face waveguide form, each layer respectively with left-hand circular polarization feed port 7 and right-handed circular polarization feed port 8 one_to_one corresponding
It is connected.
The present invention compares background technology and has the advantage that
1, the present invention uses metal waveguide to be conducive to improving the efficiency of antenna.
2, the present invention utilizes metal partion (metp) to carry out phase shift, and circular polarisation port can unrestricted choice, can be according to different polarization
Demand is designed, and axial ratio bandwidth can cover nearly 2 frequencys multiplication.
3, the present invention loads cross metal partion (metp) at the actinal surface of antenna element, can realize good grating lobe suppression effect, have
It is beneficial to the design of rear end feeding network.
4, the actinal surface of inventive antenna unit radiation can be circular or square, and dual polarised radiation cavity is to radiation actinal surface
Transition can the side's of being taper, just cone and square combination, cone or rank trapezoidal shape etc..
5, the implementation of aerial array can variation, machining, weld, be molded, casting etc. all can realize this
Bright.
Accompanying drawing explanation
Fig. 1 is a kind of big spacing low graing lobe broadband double-circle polarization flat plate array antenna two dimensional representation of the present invention.
Fig. 2 is a kind of big spacing low graing lobe broadband double-circle polarization flat plate array antenna top view of the present invention.
Fig. 3 is that the shown side of the present invention bores the cell schematics being combined with square actinal surface.
Fig. 4 is the cell schematics of shown side's cone of radiation actinal surface of the present invention.
Fig. 5 is the cell schematics of the shown round rectangular radiation actinal surface of the present invention.
Fig. 6 is the cell schematics of the shown rank trapezoidal shape radiation actinal surface of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 6, the present invention will be further described in detail.
Referring to figs. 1 through Fig. 6, a kind of big spacing low graing lobe broadband double-circle polarization flat plate array antenna 1, by m × n double entelechy
Changing antenna element 2 to form, wherein m, n are the natural number more than 1.Dual circularly polarized antenna unit 2 includes dual polarised radiation cavity
5, circular polarisation dividing plate phase shifter 3, grating lobe suppression dividing plate 4, aerial radiation mouth 6, left-hand circular polarization feed port 7 and right-handed circular polarization
Feed port 8；
The circular polarisation dividing plate phase shifter 3 is a step-like metal partion (metp), is positioned at the center of dual polarised radiation cavity 5 sidewall
On line, the base of circular polarisation dividing plate phase shifter 3 is intersected with the feed end actinal surface of dual polarised radiation cavity 5, its base length and feedback
The width of electricity port surface is identical；The feed port of dual polarised radiation cavity 5 is divided into left-hand circular polarization by the circular polarisation dividing plate phase shifter 3
Feed port 7 and right-handed circular polarization feed port 8.
Aerial radiation mouth 6 is circular or square waveguide openings, the bottom of aerial radiation mouth 6 and dual polarised radiation cavity
5 are connected, and the top of aerial radiation mouth 6 is connected to grating lobe suppression dividing plate 4；Between grating lobe suppression dividing plate 4 and dual polarised radiation cavity 5
For changeover portion, changeover portion is taper, stair-step or circle rectangle.
The metallic membrane that grating lobe suppression dividing plate 4 is arranged for decussation, grating lobe suppression dividing plate 4 by being spirally connected, the side such as welding
Formula is attached with four walls of aerial radiation mouth 6.
Feeding network is double-deck micro-strip, double-deck E face waveguide or double-deck H face waveguide form, each layer respectively with left-handed circle
Polarization feed port 7 is connected with right-handed circular polarization feed port 8.
A size of 1.0 to 2.5 times wavelength of the actinal surface of aerial radiation mouth 6, are divided into 4 equal area by grating lobe suppression dividing plate 4
Part, the whole height of circular polarisation dividing plate phase shifter 3 is 1.0 to 2.0 times of wavelength.
As a example by the design of certain band satellite communication big spacing flat plate array antenna, after using this inventive technique, Ke Yixian
Write and reduce graing lobe, and broadband double-circle polarization can be realized.Design antenna case bandwidth cover 1.5 frequencys multiplication, unit form choose as
The form of Fig. 3, the actinal surface of aerial radiation mouth 6 a size of 1.3 wavelength (low frequency) is to 0.87 wavelength (high frequency), grating lobe suppression dividing plate 4
Height be 0.5 wavelength (low frequency) to 0.78 wavelength (high frequency), according to traditional array arrangement, the then grid of aerial array synthesis
Lobe is all higher than-5dB in whole frequency band；After using this technology, the graing lobe of low-frequency range is less than the first secondary lobe of array, high band
Graing lobe is less than-12dB, and aerial array axle ratio characteristic is respectively less than 1dB in band simultaneously, substantially improves after therefore using this technology
Array beams performance.
Operation principle
When transmitting a signal, the signal that transmitter produces respectively enters left-hand circular polarization feed port through double-deck feeding network
7 and right-handed circular polarization feed port 8.Wherein, through the signal of left-hand circular polarization feed port 7, transmit in waveguide cavity, arrive
During the circular polarisation dividing plate phase shifter 3, linear polarization signal is converted into left-hand circular polarization signal, dual polarised radiation cavity 5 is radiated
Aerial radiation mouth 6, when grating lobe suppression dividing plate 4, effectively reduces array graing lobe during big spacing.Present through right-handed circular polarization
The signal of electricity port 8, transmits in waveguide cavity, when arriving the circular polarisation dividing plate phase shifter 3, linear polarization signal is converted into dextrorotation circle
Polarized signal, is radiated aerial radiation mouth 6 by dual polarised radiation cavity 5, when grating lobe suppression dividing plate 4, effectively reduces big
Array graing lobe during spacing.
When a signal is received, the circular polarisation polarized signal that space is come arrives aerial radiation mouth 6, through grating lobe suppression dividing plate 4
Time, effectively reduce array graing lobe during big spacing, the circular polarisation dividing plate phase shifter 3 in dual polarised radiation cavity 5, left-handed
Circular polarisation is converted into linear polarization, enters its feeding network connected via left-hand circular polarization feed port 7, it is achieved left-hand circular polarization
The receive capabilities of signal.The signal circular polarisation dividing plate phase shifter 3 in dual polarised radiation cavity 5, right-handed circular polarization is converted into
Linear polarization, enters its feeding network connected via right-handed circular polarization feed port 8, it is achieved the reception merit of right-handed circular polarization signal
Energy.
Claims (5)
1. a dual circularly polarized antenna unit, including dual polarised radiation cavity (5), step-like circular polarisation dividing plate phase shifter (3)
With aerial radiation mouth (6), the bottom of aerial radiation mouth (6) is connected with dual polarised radiation cavity (5), dual polarised radiation cavity
(5) being provided with the circular polarisation dividing plate phase shifter (3) on the centrage of sidewall, the circular polarisation dividing plate phase shifter (3) is by dual polarised radiation chamber
The feed port of body (5) is divided into left-hand circular polarization feed port (7) and right-handed circular polarization feed port (8)；It is characterized in that: also
Including grating lobe suppression dividing plate (4), grating lobe suppression dividing plate (4) is the metallic membrane of decussation arrangement, grating lobe suppression dividing plate (4)
Centrage coincides with the centrage of aerial radiation mouth (6), the edge envelope shape of grating lobe suppression dividing plate (4) and aerial radiation mouth
(6) inwall is identical and is fixedly connected on the upper inside wall of aerial radiation mouth (6), the width of grating lobe suppression dividing plate (4) and antenna
The inner wall size of radiation port (6) is identical.
A kind of dual circularly polarized antenna unit the most according to claim 1, it is characterised in that: described aerial radiation mouth (6)
For circular or square waveguide openings, including for arranging the top of grating lobe suppression dividing plate (4) and being positioned at grating lobe suppression dividing plate
(4) changeover portion and between dual polarised radiation cavity (5), changeover portion is taper, stair-step shape or circle rectangle；For arranging
Tapering transition section, stair-step shape changeover portion or circle rectangular transition section are passed through with double in the bottom, top of grating lobe suppression dividing plate (4)
Polarized radiation cavity (5) is connected.
A kind of dual circularly polarized antenna unit the most according to claim 1 and 2, it is characterised in that: described aerial radiation mouth
(6) a size of 1.0 to 2.5 times wavelength of actinal surface；The whole height of circular polarisation dividing plate phase shifter (3) is 1.0 to 2.0 times of wavelength.
A kind of dual circularly polarized antenna unit the most according to claim 1, it is characterised in that: described grating lobe suppression dividing plate
(4) by being spirally connected or welding manner is fixedly connected on the inwall of aerial radiation mouth (6).
5. a big spacing low graing lobe broadband double-circle polarization flat plate array antenna, double including m × n as claimed in claim 1
Circular polarized antenna unit (2) and feeding network, wherein m, n are the natural number more than 1, it is characterised in that: described transmission network
Network is double-deck micro-strip, double-deck E face waveguide or double-deck H face waveguide form, each layer respectively with left-hand circular polarization feed port (7)
It is connected with right-handed circular polarization feed port (8) one_to_one corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808414.6A CN106207419B (en) | 2016-09-08 | 2016-09-08 | Double-circular-polarization antenna unit and large-space low-grating-lobe broadband flat plate array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808414.6A CN106207419B (en) | 2016-09-08 | 2016-09-08 | Double-circular-polarization antenna unit and large-space low-grating-lobe broadband flat plate array antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106207419A true CN106207419A (en) | 2016-12-07 |
| CN106207419B CN106207419B (en) | 2022-12-06 |
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| CN201610808414.6A Active CN106207419B (en) | 2016-09-08 | 2016-09-08 | Double-circular-polarization antenna unit and large-space low-grating-lobe broadband flat plate array antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658568A (en) * | 2017-09-27 | 2018-02-02 | 北京星际安讯科技有限公司 | Dual-band and dual-polarization Shared aperture waveguide trumpet planar array antenna |
| CN108832276A (en) * | 2018-04-24 | 2018-11-16 | 西安红叶通讯科技有限公司 | Millimeter wave grid cell type flat plate array antenna |
| CN110661103A (en) * | 2019-10-15 | 2020-01-07 | 中国人民解放军63686部队 | X-frequency-band low-grating-lobe circularly polarized antenna |
| CN112688080A (en) * | 2020-12-22 | 2021-04-20 | 华南理工大学 | Double-ridge opening waveguide structure circularly polarized antenna array based on 3D printing technology |
| CN113078450A (en) * | 2021-03-22 | 2021-07-06 | 北京交通大学 | Dual-polarized air waveguide array antenna |
| CN113488782A (en) * | 2021-09-07 | 2021-10-08 | 星展测控科技股份有限公司 | Waveguide array antenna and communication device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112688080A (en) * | 2020-12-22 | 2021-04-20 | 华南理工大学 | Double-ridge opening waveguide structure circularly polarized antenna array based on 3D printing technology |
| CN113078450A (en) * | 2021-03-22 | 2021-07-06 | 北京交通大学 | Dual-polarized air waveguide array antenna |
| CN113078450B (en) * | 2021-03-22 | 2022-02-01 | 北京交通大学 | Dual-polarized air waveguide array antenna |
| CN113488782A (en) * | 2021-09-07 | 2021-10-08 | 星展测控科技股份有限公司 | Waveguide array antenna and communication device |
| CN113488782B (en) * | 2021-09-07 | 2021-12-07 | 星展测控科技股份有限公司 | Waveguide array antenna and communication device |
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| CN106207419B (en) | 2022-12-06 |
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