CN110034390A - A kind of thin layer covering of electromagnetic scattering and radiation coordinated regulation - Google Patents
A kind of thin layer covering of electromagnetic scattering and radiation coordinated regulation Download PDFInfo
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- CN110034390A CN110034390A CN201910338712.7A CN201910338712A CN110034390A CN 110034390 A CN110034390 A CN 110034390A CN 201910338712 A CN201910338712 A CN 201910338712A CN 110034390 A CN110034390 A CN 110034390A
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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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Details Of Aerials (AREA)
Abstract
The invention belongs to electromagnetic scattering control and antenna technical fields, and in particular to a kind of low frequency scatter control/antenna function covering integrated with load-carrying construction of electromagnetic scattering and radiation integrated control.The covering cooperates with unit to form scatter control and antenna function integral structure by regular array or the irregular array combination of basic structural unit and antenna element specific configuration appropriate as basic structural unit using electromagnetic scattering with radiation.By adjusting the work capacitance of the variable capacitance on metal nested cell array layer, the regulation to performances such as the working frequency points, scatter control mode, antenna pattern of stressed-skin construction scatter control and antenna is realized.The present invention creatively realizes electromagnetic scattering using active adjustable thin layer high impedance structures, and conformal, co-planar designs and scatter control and antenna function are shared, are not interfere with each other with radiation integrated structure, the Collaborative Control that can be used for aircraft body covering scattering and radiation characteristic, can effectively solve the problems, such as aircraft long range penetration and operation.
Description
Technical field
The invention belongs to electromagnetic scattering control and antenna technical fields, and in particular to a kind of electromagnetic scattering and the integrated control of radiation
The function and structure integration covering of system.
Background technique
Under confrontation between systems environment, the information-based capability improving of aircraft needs itself to have good information reconnaissance, electricity
The comprehensive radio-frequency enabled such as sub- confrontation, broadband connections, transceiver terminal of the antenna as radio frequency electric system ELECTROMAGNETIC RADIATION SIGNATURE are flying
Using can significantly increase on row device housing construction, wherein perception, interference and communication etc. to the following frequency band signals of battlefield 2.0GHz
Demand is very urgent.Meanwhile also there is an urgent need to improve electromagnetic scattering control ability in aircraft.In general, the day of aircraft
Beta radiation and electromagnetic scattering control function demand are strong, are solution Integrated designs using scattering and radiation integrated control technique
Key means.
Currently, the scatter control side of high frequency antenna is concentrated mainly on to the research of electromagnetic scattering and radiation integrated both at home and abroad
Face traditionally uses electromagnetic structures unit and the array such as artificial magnetic conductor (AMC), super surface (MS), loads in microstrip antenna
Surrounding realizes the RCS decrement of certain bandwidth, these functional structures all work in relatively high frequency range, such as C and X.If it is desired to allowing this
A little arrangement works can carry out the ratio enlargement of structure size in low-frequency range, but can have the problems such as volume, thickness is big, simultaneously
Antenna and scatter control structural unit function are discrete, and antenna element itself is caused not obtain effective scatter control, problem above
So that current existing scatter control is not able to satisfy engineering on body/missile-borne covering with antenna integrated design method or technology and answers
With requiring.Therefore, it is necessary to seek one kind to realize what electromagnetic scattering control and antenna function shared in limited thickness covering
Structural unit and array, carry out that structural unit is conformal, coplanar Coupling Design, realize the collaboration control of Scattering of Aircraft and radiation characteristic
System, solves the problems, such as aircraft long range penetration and fight capability.
Summary of the invention
The object of the present invention is to provide a kind of solution aircraft (frequency 2.0GHz or less) electromagnetic scattering controls and antenna function
The scattering of the structure-integrated problem of energy and radiation integrated covering.
The basis of thin layer covering, which is electromagnetic scattering, cooperates with unit with radiation, passes through the active device in control unit structure
The unit for electrical property parameters of (based on diode element) realizes that the structure Electromagnetic Scattering Characteristics of any frequency point and radiation in frequency range are special
The individually controllable adjusting of property；Regular array is carried out with radiation collaboration unit to the electromagnetic scattering on basis or irregular array combines,
And appropriate progress antenna element specific configuration, scatter control and the structure-integrated covering of antenna function can be constructed.
Technical solution of the present invention:
Electromagnetic scattering cooperates with unit with radiation, mainly multiple including peripheral metal blade unit, central metal blade unit, resin base
Condensation material layer and metal conducting layer etc..Peripheral metal blade unit, polymer matrix composites layer and metal conducting layer collectively constitute pair
Incident Low-frequency radar wave is scattered the high impedance scatter control functional structure of regulation, realizes the absorption to electromagnetic wave and scattering phase
Position is adjusted, this mainly passes through the solidification and work of fixed capacity and variable capacitance progress frequency spectrums of operation on peripheral metal blade unit
The regulation of frequency point.Same phase reflecting layer of the central metal blade unit using high impedance scatter control structure as antenna function structure, and
It is coplanar with peripheral metal blade unit, it is nested in inside peripheral metal blade unit, passes through the fixed capacity on central metal blade unit
The solidification of Antenna Operation frequency spectrum and frequency point regulation are carried out with variable capacitance.
Scatter control and the structure-integrated covering of antenna function, by metal nested cell array layer, polymer matrix composites
Bearing layer, metal conductive shield layer and feeder line layer composition, basic structural unit cooperate with unit with radiation for electromagnetic scattering,
It is the nuclear structure that entire covering scattering adjusts implementation with radiation function characteristic, by its unit and its cell array structure
The capacitance combination of a variety of variable capacitance element, which is adjusted, realizes collaborative work；Polymer matrix composites bearing layer is mainly used to bear to cover
Distributed load on skin can select glass reinforced plastic or quartz fibre polymer matrix composites to make according to practical flight device design feature
For basis material；Metal conductive shield layer is copper metal film or aluminium film, realizes the shielding and reflection of incident electromagnetic wave；Feeder line
Layer is mainly used to be powered the variable capacitance on peripheral sheet metal unit and central metal blade unit, and capacitance value can
To realize to performances such as the working frequency points, scatter control mode, antenna pattern of stressed-skin construction scatter control and antenna function
Regulation.
Beneficial effects of the present invention
The present invention is realized by the work capacitance of the variable capacitance on adjusting metal nested cell array layer to stressed-skin construction
The regulation of the performances such as scatter control and the working frequency points of antenna, scatter control mode, antenna pattern.The invention land productivity
Realizing electromagnetic scattering with active adjustable thin layer high impedance structures, conformal, co-planar designs and scattering are controlled with radiation integrated structure
System and antenna function are shared, are not interfere with each other, and can be used for the Collaborative Control of aircraft body covering scattering and radiation characteristic, can be effective
Solve the problems, such as aircraft long range penetration and operation.
Detailed description of the invention
Fig. 1, which is electromagnetic scattering, cooperates with cellular construction schematic diagram with radiation.
1. 2. central metal blade unit of peripheral metal blade unit, 3. polymer matrix composites layer 4. is grounded outside conductive layer 5.
Enclose 6. peripheral metal blade unit variable capacitance of metal blade unit fixed capacity, 7. central metal blade unit variable capacitance, 8. center
9. feed metal via hole of metal blade unit fixed capacity
Fig. 2 is scatter control and the structure-integrated covering schematic diagram of antenna function
10. the lower band antenna array combination of super band aerial array combination 11.
Fig. 3 is scatter control and the structure-integrated covering schematic cross-sectional view of antenna function.
12. 14. metal conductive shield layer of metal nested cell 13. polymer matrix composites bearing layer of array layer, 15. tree
16. feeder line layer of resin-based composite separation layer
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
The invention mainly includes design a kind of electromagnetic scattering control under certain thickness limitation and antenna function is total
With, unit is coplanar, aircraft skin scheme of coordinated regulation, the dynamic regulation of Scattering of Aircraft and radiation characteristic is carried out, realizes and dissipates
It is integrated with load-carrying construction to penetrate control/antenna function.
Embodiment 1
A kind of function and structure integration covering of electromagnetic scattering and radiation integrated control, the specific steps are as follows:
The first step, according to scatter control and the requirement of radio-frequency antenna dual function, design is by peripheral metal blade unit list first
The high impedance scatter control scheme that member 1, polymer matrix composites layer 3 and ground connection conductive layer 4 form.Peripheral metal blade unit 1 week
Phase size is between 70~100mm, using notched rectangular or L shape, the copper of 0.18 μ m-thick or aluminum metal ring as main body, metal
It is attached between ring by fixed capacity 5, realizes the solidification to high impedance structures low frequency scatter control frequency spectrums of operation, becket
It is connect between metal conducting layer 4 by variable capacitance 6, adjusting variable capacitance can realize to high impedance structures scatter control function
The control of energy working frequency points.When variable capacitance changes between 0.5pF~10pF, high impedance structures scatter control work may be implemented
Make frequency point freely to regulate and control between 300MHz~2.3GHz.Polymer matrix composites layer 3 is the glass reinforced plastic or stone of dielectric constant 4.3
English fibre resin based composites.
Second step carries out Antenna Construction Design in high impedance scatter control structure design basis.In peripheral sheet metal list
1 inside of member carries out nested central metal blade unit 2 and designs.Central metal blade unit 2 is integrated in 1 center of peripheral metal blade unit
It is relatively small to open up size on square metal patch mainly based on rectangular, 0.18 μ m-thick copper or aluminum metal patch for domain
Gap loads fixed capacity 8 between gap, for assisting realizing the solidification of antenna low frequency operation frequency spectrum, square metal patch
Edge mid-points are connected by variable capacitance 7 with ground connection conductive layer 4, and the input of radiation signal is carried out by feed metal via hole 9
And feed.When variable capacitance changes between 1.0pF~20pF, may be implemented Antenna Operation frequency point 300MHz~2.3GHz it
Between freely regulate and control.
Third step cooperates with the basic unit that unit is covering to carry out array electromagnetic scattering, on the whole by outer with radiation
And interior building metal nested cell array layer 12, polymer matrix composites bearing layer 13, metal conductive shield layer 14, resin base are multiple
The thin layer covering scheme that condensation material separation layer 15 and feeder line layer 16 form.Stressed-skin construction is with a thickness of 5.0mm.Metallic conduction screen
Cover the copper or aluminum metal film that layer 14 is 0.18 μ m-thick.Feeder line layer 16 is mainly biasing circuit, using the copper or aluminium gold of 1mm
Belong to line and inductance element as offset line, the DC voltage regulation of variable capacitance can be met, alternating electromagnetic field change can also be met
The stability of arrangement works frequency point under changing reaches the design function of " logical direct current, resistance exchange ".Polymer matrix composites bearing layer
13 and polymer matrix composites separation layer 15 be made of the glass reinforced plastic of dielectric constant 4.3 or quartz fibre polymer matrix composites.
4th step, when skin antenna function is implemented, 16 pairs of feeder line layer peripheral sheet metal units 1 and central metal piece
Variable capacitance element on unit 2 is powered, capacitance value, to realize to stressed-skin construction scatter control and antenna function
The regulation of the performances such as working frequency points, scatter control body mode, antenna pattern.Wherein, central metal blade unit 2 can be according to choosing
The varactor regulating power of type carries out frequency-division section design, can select respectively 1.0pF~10pF and 10pF~20pF it
Between the varactor model that effectively works, the Antenna Operation frequency point for meeting 300MHz~2.3GHz frequency range, which is adjusted, to be required.In addition,
The periodical or aperiodic of central metal blade unit 2 can be carried out in covering according to work requirements such as antenna gain, directional diagrams
Property etc. a variety of array formats combination arrangement.
Super band aerial array combination 10 and lower band antenna array combination 11 are the days being composed of four cell arrays
Linear array realizes the frequency point and directional diagram regulation of two frequency ranges of 300MHz~1.0GHz and 1.0GHz~2.3GHz respectively.
5th step, when covering scatter control and antenna function are implemented, can respectively to peripheral sheet metal unit 1 and array,
The mutual capacitance value progress of variable capacitance element on central metal blade unit 2 and array is separately adjustable, passes through reality of working in coordination
The scatter control of existing stressed-skin construction and effective performance of antenna function.When scatter control mode works, to center sheet metal unit 2
And the variable capacitance on array is suitably pressurizeed, capacitance value, so that central metal blade unit 2 and array are to scatter control
The working frequency points and scatter control mode that function is implemented are minimum without influencing or influencing.When antenna mode works, peripheral metal is adjusted
Variable capacitance on blade unit 1 and array, so that it presses down the surface electromagnetic wave of center sheet metal unit 2 and array radiation
System, improves the gain and directionality of antenna.
Claims (4)
1. the thin layer covering of a kind of electromagnetic scattering and radiation coordinated regulation, which is characterized in that the thin layer covering is by outer and interior
It is multiple by metal nested cell array layer (12), polymer matrix composites bearing layer (13), metal conductive shield layer (14), resin base
Condensation material separation layer (15) and feeder line layer (16) composition；
The metal nested cell array layer (12) by peripheral metal blade unit (1), central metal blade unit (2) combination and
At it is internal that central metal blade unit (2) is nested in peripheral metal blade unit (1)；
The peripheral metal blade unit (1) is using notched rectangular or L shape, the copper of 0.18 μ m-thick or aluminum metal ring as master
Body is attached between becket and becket by fixed capacity (5), by outer between becket and ground connection conductive layer (4)
Enclose metal blade unit variable capacitance (6) connection；
The central metal blade unit (2) is based on the copper or aluminum metal patch of rectangular 0.18 μ m-thick, square metal patch
On open up and have the gap, load fixed capacity (8) between gap, the edge mid-points of square metal patch pass through central metal blade unit
Variable capacitance (7) is connected with ground connection conductive layer (4), and input and the feed of radiation signal are carried out by feed metal via hole (9)；
The polymer matrix composites bearing layer (13) and polymer matrix composites separation layer (15) by dielectric constant 4.3 glass
Glass steel or quartz fibre polymer matrix composites are constituted, and thickness is respectively 4.8mm and 0.2mm；
The metal conductive shield layer (14) is the copper or aluminum metal film of 0.18 μ m-thick；
Feeder line layer (16) is using the copper or aluminum metal lines and inductance element of 1mm as feed line.
2. the thin layer covering of a kind of electromagnetic scattering according to claim 1 and radiation coordinated regulation, which is characterized in that described
Stressed-skin construction integral thickness between 5mm, 70~100mm of size.
3. the thin layer covering of a kind of electromagnetic scattering according to claim 1 and radiation coordinated regulation, which is characterized in that described
Covering scatter control function working frequency points by change peripheral metal blade unit inside variable capacitance element regulation, use
Commercially available varactor, the capacitance range that works is between 0.5pF~10pF.
4. the thin layer covering of a kind of electromagnetic scattering according to claim 1 and radiation coordinated regulation, which is characterized in that described
The working frequency points regulation of skin antenna function be divided into two sections of realization, variable capacitance element is using city inside central metal blade unit
Varactor is sold, work capacitance range is respectively between 1.0pF~10pF and 10pF~20pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338712.7A CN110034390A (en) | 2019-04-25 | 2019-04-25 | A kind of thin layer covering of electromagnetic scattering and radiation coordinated regulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910338712.7A CN110034390A (en) | 2019-04-25 | 2019-04-25 | A kind of thin layer covering of electromagnetic scattering and radiation coordinated regulation |
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| CN110034390A true CN110034390A (en) | 2019-07-19 |
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| CN201910338712.7A Pending CN110034390A (en) | 2019-04-25 | 2019-04-25 | A kind of thin layer covering of electromagnetic scattering and radiation coordinated regulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11489265B2 (en) * | 2019-07-11 | 2022-11-01 | Nanjing University Of Posts And Telecommunications | Reconfigurable wideband phase-switched screen based on artificial magnetic conductor |
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2019
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| CN102227040A (en) * | 2011-03-04 | 2011-10-26 | 西安电子科技大学 | Array antenna used for reducing radar scattering cross section |
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| CN104577340A (en) * | 2014-12-31 | 2015-04-29 | 上海新微技术研发中心有限公司 | Multiband tunable antenna and wireless communication device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11489265B2 (en) * | 2019-07-11 | 2022-11-01 | Nanjing University Of Posts And Telecommunications | Reconfigurable wideband phase-switched screen based on artificial magnetic conductor |
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