CN106654565A - Integrated ultra wide band bias parabolic cylindrical surface array antenna based on MIMO system phased array - Google Patents
Integrated ultra wide band bias parabolic cylindrical surface array antenna based on MIMO system phased array Download PDFInfo
- Publication number
- CN106654565A CN106654565A CN201611173967.5A CN201611173967A CN106654565A CN 106654565 A CN106654565 A CN 106654565A CN 201611173967 A CN201611173967 A CN 201611173967A CN 106654565 A CN106654565 A CN 106654565A
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- Prior art keywords
- parabolic cylinder
- biasing
- parabolic
- bias
- array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- 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
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention provides an integrated ultra wide band bias parabolic cylindrical surface array antenna based on a MIMO system phased array; the integrated ultra wide band bias parabolic cylindrical surface array antenna comprises a plurality of bias parabolic cylinder box arrays, wherein each bias parabolic cylinder box array comprises an upper side plate, a lower side plate, a side plate, a bias parabolic cylindrical surface and a bias feed horn; the cross section of the bias parabolic cylindrical surface is a half parabola; the upper and lower side plates vertical to the parabola directrix are connected on two ends of the bias parabolic cylindrical surface, thus forming the top end face and bottom end face of the bias parabolic cylinder box array; the side plate covers the space between the upper and lower side plates and the bias parabolic cylindrical surface; the bias feed horn is arranged on the focus position of the parabola; the plurality of bias parabolic cylinder box arrays are tightly arranged in parallel, and share the adjacent side plates. The integrated ultra wide band bias parabolic cylindrical surface array antenna can satisfy the electric performances, is light in weight, can ensure the antenna structure intensity, and can improve the phased array radar performance.
Description
Technical field
The present invention relates to a kind of ultra broadband phased array array antenna.
Background technology
Offset parabolic antenna is a kind of common antenna form, and sky feedback is efficient, and the bore that there is no reflector antenna hides
Gear, appropriate design can realize broad band performance, be highly suitable for the high-end use above of microwave frequency band.Thus antenna deformation and
The biasing parabolic-cylinder antenna for coming inherits these advantages, can use as phased front.Generally, parabolic-cylinder antenna configuration
Linear feed is used, it is possible to achieve mutually swept.But this antenna form feed is complicated, and line source is to the open irradiation bore of parabolic cylinder
Utilization ratio is low, and particularly hydraulic performance decline is serious in the case of wide-angle scanning.Add upper spacer to biasing parabolic cylinder, form biasing
Parabolic cylinder unit (parabolic cylinder box antenna element), and phased antenna front is thus constituted, can be thrown with the above-mentioned biasing of effectively solving
The problem that the irradiation of thing cylinder line source is present.The design of single parabolic cylinder box antenna of design is by a relatively simple, as it was previously stated, by one
Group parabolic cylinder box antenna element constitutes front, and its design difficulty greatly, has big size, difficult group battle array, structural rigidity and overall weight
Amount requires the problems such as overall balance is difficult.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of integrated ultra broadband based on MIMO system phased arrays
Biasing parabolic cylinder array antenna, had both met electric property, weight was alleviated again, it is ensured that the structural strength of antenna, energy
Enough lift the performance of phased-array radar.
The technical solution adopted for the present invention to solve the technical problems is：Parabolic cylinder box battle array is biased including several, often
Individual biasing parabolic cylinder box battle array includes epipleural, lower side panel, side plate, biasing parabolic cylinder and offsetfed loudspeaker, and described is inclined
The section for putting parabolic cylinder is semi-parabolic, and the epipleural and lower side panel perpendicular to parabolical directrix is connected to biasing parabolic cylinder
Face two ends, constitute the upper surface and lower surface of biasing parabolic cylinder box battle array, between epipleural, lower side panel and biasing parabolic cylinder
Side plate is covered, described offsetfed loudspeaker are arranged on parabolical focal position；Several biasing parabolic cylinder box battle arrays are parallel
Close-packed arrays and shared adjacent side plate.
Described epipleural, lower side panel, side plate and biasing parabolic cylinder are made using magnesium lithium alloy material.
, with 17 as one group, totally 4 groups of 68 biasing parabolic cylinder box battle arrays are parallel closely for described biasing parabolic cylinder box battle array
Arrangement.
The inner side paving absorbing material of described epipleural, lower side panel and biasing parabolic cylinder bottom.
Using the connection of thixotropic epoxy adhesive between described epipleural, lower side panel, side plate and biasing parabolic cylinder.
Present invention additionally comprises fiberglass outer shell, between fiberglass outer shell and biasing parabolic cylinder box battle array epoxy is adopted
Foamed material is filled.
The invention has the beneficial effects as follows：By developing biasing parabolic cylinder box battle array, integrated design is realized, on the one hand reduced
The size of antenna, alleviates antenna weights, increases antenna effective radiation aperture；On the other hand the whole front of antenna is carried out
Integration processing, and using the cementing produced with combination parabolic cylinder box side wall of magnesium lithium alloy material, solve the processing of script aerial array
Difficulty, complex structure, the problems such as heavy, finite reduction production and processing difficulty improves machining yield.
Description of the drawings
Fig. 1 is biasing parabolic cylinder housing unit structural representation；
Fig. 2 is biasing parabolic-cylinder antenna array schematic diagram；
Fig. 3 is the coordinate system schematic diagram of middle transversal；
Fig. 4 is the application schematic diagram of law of conservation of energy.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further described, and the present invention includes but are not limited to following enforcements
Example.
The integrated ultra broadband based on MIMO system phased arrays that the present invention is provided biases parabolic cylinder array antenna, uses
Biasing parabolic cylinder develops biasing parabolic cylinder box battle array as antenna element, realizes integrated design, it is ensured that submatrix each unit
Wave beam performance.It is composited using light materials such as magnesium lithium alloy materials to reduce antenna weights parabolic cylinder box side wall.Parabolic
Post box body curved surface is adopted and by being composited using magnesium lithium alloy material, electromagnetic absorber etc., has both met electric property
Weight is alleviated again, it is ensured that the structural strength of antenna.It is applied to phased-array radar field.
The present invention includes several biasing parabolic cylinder box battle arrays, and each biasing parabolic cylinder box battle array includes epipleural 1, downside
Plate 4, side plate, biasing parabolic cylinder 2 and offsetfed loudspeaker 3, the section of described biasing parabolic cylinder is semi-parabolic, vertically
Biasing parabolic cylinder two ends are connected in the epipleural and lower side panel of parabolical directrix, the upper of biasing parabolic cylinder box battle array is constituted
End face and lower surface, cover side plate between epipleural, lower side panel and biasing parabolic cylinder, and described offsetfed loudspeaker are installed
In parabolical focal position；Several parallel close-packed arrays of biasing parabolic cylinder box battle array and shared adjacent side plate.
The present invention, as antenna element, reduces antenna longitudinal profile size using biasing parabolic cylinder box-like formula.
The basic skills of design paraboloid is as follows：First according to geometric optics come transversal in designing so that hanging down
Straight plane interior energy produces required wave beam；Because the present invention is parabolic cylinder box, transversal is translated in the horizontal direction in, just can shape
Parabolic cylinder box into needed for us.Therefore the radian of middle transversal is exactly the parabola required by us.
In middle transversal, choose coordinate system as shown in figure 4, wherein F points for point source phase center, ρ be F on middle transversal
The distance of any point P, ψ is angle between incident ray and horizontal line, and ψ angles more than prescribed level line are for just, horizontal line with
Under ψ angles be negative.
According to reflection law, middle transversal ρ=ρ (ψ) can be determined by the following differential equation
Assume that feed power radiation pattern is I (ψ), preferable far field power radiation pattern is G (θ), and in the horizontal stroke that the elevation angle is θ
All of reflected ray is parallel in section, then from law of conservation of energy, is that d ψ, azimuth width are in elevation angle widthConelet body in incident power, it is proportional to corresponding wedge shape internal power is contained in after reflection, i.e.,
KI (ψ) d ψ d φ=G (θ) d θ d φ (2)
Or
K is proportionality coefficient in formula.Then boundary condition is utilized, this formula can be write as
Wherein
Then transversal in being determined by following formula
It can easily be seen that containing unknown function ρ (ψ) in (1) formula, a kind of simple and effective method is：
The initial function for the function asked such as a. assuming first that is ρ=ρ (ψ), and the first half of its curve is parabola, lower half
Bu Shi gardens are lonely, i.e.,
In formula
ρ0=oo '
B. this initial function is substituted into into (1), obtains the relation of θ and ψ；θ=θ (1) is (ψ)；
C. θ=θ (1) (ψ) is substituted into into (2) formula, obtains the relation between ρ and ψ, be denoted as ρ=ρ (2) (ψ)；
D. ρ=ρ (2) (ψ) is substituted into into (1), obtains the relation of θ and ψ, be denoted as θ=θ (2) (ψ)；
Such step that iterates goes on always, till ρ=ρ (n) (ψ) reaches required precision, or k
(n-1) very little whether is differed with k (n), if so, can stops iterative process.
With regard to ρ0Determination, be approximately equal to the focal length in parabola face.Determination with regard to parabola vertical height H is about
(10～20) λ.When the timings of H mono-, if ρ0When selecting larger, antenna longitudinal size is not only set to increase but also because ψ, 2 ψ 1 accordingly subtract
It is little and make feed caliber size increase, make to block increase.Such as ρ0It is too small, make horizontal focal length too short, irradiation is not uniform enough, affects to increase
Benefit.By optimizing ρ0And height H is making parabolic arc reach the shape needed for us.
The horizontal arranged composition aerial array of this antenna element, altogether comprising the antenna element of 68 parabolic cylinder box-like formulas,
It is made up of four submatrixs.Each submatrix unit is made up of 17 parabolic cylinder box bodys, adjacent pack common side wallboard.In design, in order to
Reduce antenna weights, using the produced with combination parabolic cylinder box such as magnesium lithium alloy material, electromagnetic absorber side wall, parabolic cylinder box body is bent
Face is composited using the structural foam of membranous metal layer and high-strength light.The upper and lower end face of parabolic cylinder box body and curved surface
Bottom, can produce parasitic radiation, paving absorbing material is ensureing the wave beam performance of antenna before shaping.
The present invention is analyzed first to antenna element and feed form, and antenna element needs to realize narrow beam in pitching face
(direction beam angle, is narrow beam generally within 10 °, is broad beam more than 10 °), azimuth plane realizes broad beam.Parabolic
Post box is a kind of unit form for preferably meeting bandwidth, requirement being lost.
For parabolic cylinder box antenna element, offsetfed parabolic cylinder box is a kind of deformation of offset parabolic antenna, will
The column in its slot footpath reduced in azimuth plane, the radian, the position of offsetfed loudspeaker that focus on optimization parabolic cylinder of design
Put and minimum biases the parameters such as the longitudinal size of parabolic cylinder, reduce antenna longitudinal profile size.Antenna array is using biasing
Parabolic cylinder array format, altogether comprising the antenna element of 68 parabolic cylinder box-like formulas, is made up of four submatrixs.Each submatrix unit by
17 parabolic cylinder box body compositions, adjacent pack common side wallboard.This mentality of designing, on the one hand alleviates antenna weights, increase
Antenna effective radiation aperture；On the other hand relative to antenna array overall processing, finite reduction production and processing difficulty is improved
Machining yield.
In design, in order to reduce antenna weights, parabolic cylinder box side wall adopt density for 1.4 magnesium lithium alloy material, throw
Thing post box body bottom reflector adopts the durable aluminium film of 0.2 millimeters thick, parabolic cylinder box cavity inward flange to adopt epoxy conducting
Used as anti-electromagnetic shielding material, they are connected each other using thixotropic epoxy adhesive, and parabolic cylinder box body connects except structure
Using the enhanced epoxy foams filling of high-density fiber powder outside position, the glass fibre that there is densification on structural foam surface is combined
The material shell of resistance to environmental protection, fully meets the whole machine environmental requirement of product；Not only electric property had been met but also had alleviated weight, also
Ensure that the structural strength of antenna.
In order to give full play to the characteristic of each group separation structure, technical process adopts special Combined fixture fixture, from parabolic
The cavity assembling of post box body starts, and successively implements step by step, fills solidification, until eventually becoming with structure-function integration, tool
There is the parabolic cylinder box body of three anti-functions；Offsetfed loudspeaker are reassembled after multiple assembly connections, by integral type debugging tool,
Integrated ultra broadband biasing parabolic cylinder array antenna is formed after comprehensive electrochemical properties matching.
Claims (6)
1. a kind of integrated ultra broadband based on MIMO system phased arrays biases parabolic cylinder array antenna, including several biasings
Parabolic cylinder box battle array, it is characterised in that：Each biasing parabolic cylinder box battle array includes epipleural, lower side panel, side plate, biasing parabolic cylinder
Face and offsetfed loudspeaker, the section of described biasing parabolic cylinder is semi-parabolic, perpendicular to the upside of parabolical directrix
Plate and lower side panel are connected to biasing parabolic cylinder two ends, the upper surface and lower surface of biasing parabolic cylinder box battle array are constituted, in upside
Side plate is covered between plate, lower side panel and biasing parabolic cylinder, described offsetfed loudspeaker are arranged on parabolical focal position；
Several parallel close-packed arrays of biasing parabolic cylinder box battle array and shared adjacent side plate.
2. the integrated ultra broadband based on MIMO system phased arrays according to claim 1 biases parabolic cylinder array day
Line, it is characterised in that：Described epipleural, lower side panel, side plate and biasing parabolic cylinder are made using magnesium lithium alloy material.
3. the integrated ultra broadband based on MIMO system phased arrays according to claim 1 biases parabolic cylinder array day
Line, it is characterised in that：Described biasing parabolic cylinder box battle array with 17 as one group, put down by totally 4 groups of 68 biasing parabolic cylinder box battle arrays
Row close-packed arrays.
4. the integrated ultra broadband based on MIMO system phased arrays according to claim 1 biases parabolic cylinder array day
Line, it is characterised in that：The inner side paving absorbing material of described epipleural, lower side panel and biasing parabolic cylinder bottom.
5. the integrated ultra broadband based on MIMO system phased arrays according to claim 1 biases parabolic cylinder array day
Line, it is characterised in that：Thixotropic epoxy adhesive is adopted between described epipleural, lower side panel, side plate and biasing parabolic cylinder
Connection.
6. the integrated ultra broadband based on MIMO system phased arrays according to claim 1 biases parabolic cylinder array day
Line, it is characterised in that：Also include fiberglass outer shell, between fiberglass outer shell and biasing parabolic cylinder box battle array epoxy is adopted
Foamed material is filled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015109636638 | 2015-12-20 | ||
| CN201510963663 | 2015-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654565A true CN106654565A (en) | 2017-05-10 |
Family
ID=58823307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611173967.5A Pending CN106654565A (en) | 2015-12-20 | 2016-12-19 | Integrated ultra wide band bias parabolic cylindrical surface array antenna based on MIMO system phased array |
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| CN (1) | CN106654565A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145908A (en) * | 2021-05-27 | 2021-07-23 | 中国电子科技集团公司第二十九研究所 | Processing method of curved surface thin shell structure of high-temperature broadband electromagnetic absorption composite material |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458885A (en) * | 1944-12-15 | 1949-01-11 | Bell Telephone Labor Inc | Directive antenna system |
| EP0015837A2 (en) * | 1979-03-09 | 1980-09-17 | Thomson-Csf | Parallel-plane antenna with rotating polarisation |
| US4254421A (en) * | 1979-12-05 | 1981-03-03 | Communications Satellite Corporation | Integrated confocal electromagnetic wave lens and feed antenna system |
| GB2221351A (en) * | 1988-07-27 | 1990-01-31 | British Telecomm | Antenna |
| CN1101172A (en) * | 1993-09-29 | 1995-04-05 | 杜惠平 | Reflection-side antenna |
| JPH07307615A (en) * | 1994-05-13 | 1995-11-21 | Nec Corp | Reflected wave prevention type parabolic antenna |
| CN101207238A (en) * | 2006-12-22 | 2008-06-25 | 三星电子株式会社 | Antenna device |
| CN102480024A (en) * | 2011-07-26 | 2012-05-30 | 深圳光启高等理工研究院 | Feed-backward type radar antenna |
| CN103956568A (en) * | 2014-05-22 | 2014-07-30 | 西安空间无线电技术研究所 | Box-shaped fan-beam antenna |
-
2016
- 2016-12-19 CN CN201611173967.5A patent/CN106654565A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458885A (en) * | 1944-12-15 | 1949-01-11 | Bell Telephone Labor Inc | Directive antenna system |
| EP0015837A2 (en) * | 1979-03-09 | 1980-09-17 | Thomson-Csf | Parallel-plane antenna with rotating polarisation |
| US4254421A (en) * | 1979-12-05 | 1981-03-03 | Communications Satellite Corporation | Integrated confocal electromagnetic wave lens and feed antenna system |
| GB2221351A (en) * | 1988-07-27 | 1990-01-31 | British Telecomm | Antenna |
| CN1101172A (en) * | 1993-09-29 | 1995-04-05 | 杜惠平 | Reflection-side antenna |
| JPH07307615A (en) * | 1994-05-13 | 1995-11-21 | Nec Corp | Reflected wave prevention type parabolic antenna |
| CN101207238A (en) * | 2006-12-22 | 2008-06-25 | 三星电子株式会社 | Antenna device |
| CN102480024A (en) * | 2011-07-26 | 2012-05-30 | 深圳光启高等理工研究院 | Feed-backward type radar antenna |
| CN103956568A (en) * | 2014-05-22 | 2014-07-30 | 西安空间无线电技术研究所 | Box-shaped fan-beam antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145908A (en) * | 2021-05-27 | 2021-07-23 | 中国电子科技集团公司第二十九研究所 | Processing method of curved surface thin shell structure of high-temperature broadband electromagnetic absorption composite material |
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Application publication date: 20170510 |
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