CN103293394B - A kind of Compact range generation device - Google Patents
A kind of Compact range generation device Download PDFInfo
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- CN103293394B CN103293394B CN201210050862.6A CN201210050862A CN103293394B CN 103293394 B CN103293394 B CN 103293394B CN 201210050862 A CN201210050862 A CN 201210050862A CN 103293394 B CN103293394 B CN 103293394B
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Abstract
The present invention relates to a kind of deflation field device for antenna measurement, disclose a kind of Compact range generation device, the device includes feed and metamaterial panel, metamaterial panel includes core layer, core layer includes core layer, core layer includes border circular areas and the multiple annular regions being distributed in around border circular areas, refractive index in border circular areas and annular region at same radius is identical, and as the increase refractive index of radius is gradually reduced in the border circular areas and the respective region of annular region, maximum of the minimum of a value of the refractive index of border circular areas less than the refractive index of the annular region being adjacent, two neighboring annular region, maximum of the minimum of a value of the refractive index of the annular region in inner side less than the refractive index of the annular region in outside.Compact range generation device of the invention, instead of traditional parabolical reflecting surface by the metamaterial panel of sheet, and manufacture processing is more prone to, and cost is cheaper.
Description
Technical field
The present invention relates to antenna measurement field, more particularly to a kind of Compact range generation device based on Meta Materials.
Background technology
Compact Range is a kind of closely interior by smooth reflecting surface, including single reflection face and double-reflecting face, and feed is sent out
The spherical wave for going out is changed into the test equipment of plane wave.Plane wave environment produced by it, can fully meet antenna radiation pattern
Test request, so as to reach in the closely interior purpose tested to antenna.Tighten and can be divided into Compact Range day on field system
Line part and microwave dark room part.In the prior art, Compact Range antenna part is, using accurate reflecting surface, point source to be produced
Spherical wave in the closely interior set of device for being transformed to plane wave, it is generally according to design requirement, the position of antenna part is accurate
Really it is installed in microwave dark room, and regulates levelness, it is dark by the process to Compact Range antenna reflective face edge and microwave
The cooperation of room, in space, test zone creates a dead zone, can simulate measured object unreflected freely empty in dead zone
Between in radiation characteristic.
Compare with outdoor far field and indoor near field, Compact Range mainly has the characteristics that：
1st, the Compact Range installed in microwave dark room has preferable confidentiality；
2nd, the Compact Range climate ambient influnence installed indoors is little, improves test condition, and then improves RCS
The measurement efficiency of (Radar Cross-Section, RCS)；
3rd, outdoor far field test problem can be converted to measurement of near distance problem in darkroom.
These features determine Compact Range be study electromagnetic scattering important test equipment, and advanced capabilities radar antenna survey
The important infrastructure of the system performance testings such as examination, the whole star test of satellite, the test of aircraft reflection characteristic.Meanwhile, tighten field technology
Irreplaceable effect is played increasingly in military field.Either satellite, aircraft, or guided missile, tank, artillery etc. are large-scale
Weaponry Stealth Fighter test, adjustment etc., all rely on play Compact Range technical role.It can be said that the skill of Compact Range
Art level how, not only governs the performance and quality of military weapon equipment, is also related to a national national defense safety problem.
Therefore, current Ge great military powers are all using tightening field system as one of defense strategy technology, emphasis in addition research and development.
At present, the company and scientific research institutions of electromagnetic product research and development and technical research are engaged in both at home and abroad, are typically all established certainly
Oneself deflation field system, it is very easy to use and quick.Tighten the sophisticated equipment that field system is tested as modern antennas, nothing
Doubt with more and more important technological progress meaning and extremely widely with prospect.
But existing design still suffers from certain problem：Using smooth reflecting surface be parabolic shape, and reflecting surface must be very
Greatly, about three times greater than testing dead zone, the mechanical platform for manufacturing parabolic shape reflecting surface is sufficiently complex, will reach preferably reflection
Face technique is also relatively difficult, and surface treatment dependency degree is high, involves great expense, and feed location is must be placed in the focus of reflecting surface,
The conversion of spherical wave and plane wave cannot be otherwise reached, and the focus of reflecting surface gives manufacturing process smart with the distance of smooth reflecting surface
Degree causes very big difficulty.
The content of the invention
It is an object of the invention to overcome prior art to manufacture smooth reflecting surface must be very big, and difficulty in process, complexity, make
A kind of expensive defect of high price, there is provided Compact range generation device based on Meta Materials, the device manufacture Compact Range using Meta Materials
Spherical electromagnetic wave is converted to plane electromagnetic wave by antenna part, is simple to manufacture, low price.
In order to achieve the above object, the following technical scheme that the present invention is adopted：
A kind of Compact range generation device, described device include feed, and described device also includes being arranged in front of the feed
Metamaterial panel, the metamaterial panel includes core layer, and the core layer includes at least one core layer, the core
Central layer lamella includes the first base material of sheet and the multiple man-made microstructures being arranged in the first base material, the core layer
Lamella can be divided into centrally located border circular areas according to index distribution and be distributed in around border circular areas and with institute
Multiple annular regions of the concyclic heart of border circular areas are stated, the refractive index phase in the border circular areas and annular region at same radius
Together, as the increase refractive index of radius is gradually reduced and in the border circular areas and the respective region of annular region, the circle
Maximum of the minimum of a value of the refractive index in domain less than the refractive index of the annular region being adjacent, two neighboring annular region, place
The maximum of the refractive index of the annular region in outside is less than in the minimum of a value of the refractive index of the annular region of inner side.
Further, the first base material includes first prebasal plate and the first metacoxal plate of sheet, the plurality of the first
Make micro-structural to be folded between the first prebasal plate and the first metacoxal plate.
Further, the core layer includes that multiple thickness are identical and index distribution identical core layer.
Further, the folding of center of the center of circle for core layer, the border circular areas and multiple annular regions
Penetrate that rate excursion is identical, refractive index n (r) distribution of the core layer meets equation below：
Wherein, i represents core layer segments, and i=1 represents that core layer first paragraph, i=2 represent core synusia
Layer second segment ..., i=p represent the pth section of core layer, the core layer first paragraph is near core layer
Center；
niR () represents that the upper radius of i-th section of core layer is the refractive index value at r；
nminRepresent the minimum of a value of the refractive index of core layer；
λ represents electromagnetic wavelength；
R represents distance of any point apart from core layer center in core layer；
S is vertical range of the feed equivalent point to metamaterial panel；
aiRepresent the maximum at core layer the i-th segment distance core layer center；
D represents the thickness of the core layer.
Further, the metamaterial panel also includes the impedance matching layer for being symmetrically distributed in core layer both side surface, institute
Stating impedance matching layer includes the multiple impedance matching layer lamellas of thickness identical, and the impedance matching layer lamella includes the second of sheet
Base material and multiple second man-made microstructures being arranged on the second base material, the index distribution of the impedance matching layer lamella are full
Sufficient equation below：
λ=(nmax-nmin)*(d+2*d1)；
Wherein, j represents the numbering of impedance matching layer lamella, and the numbering of impedance matching layer lamella near feed is m, by presenting
Source is sequentially reduced to core layer direction, numbering, and the numbering near the impedance matching layer lamella of core layer is 1；
Above-mentioned nmaxWith nminIt is identical with the maxima and minima of the refractive index of core layer；
R represents distance of any point to its center on impedance matching layer lamella；
λ represents electromagnetic wavelength；
Thickness of the d1 for impedance matching layer；
Thickness of the d for core layer.
Further, second base material includes second prebasal plate and the second metacoxal plate of sheet, the plurality of second people
Make micro-structural to be folded between the second prebasal plate and the second metacoxal plate.
Further, first man-made microstructure and the second man-made microstructure are the metal being made up of copper cash or silver wire
Micro-structural, the metal micro structure are respectively attached to the by etching, plating, carve, photoetching, the method that electronics is carved or ion is carved
On one base material and the second base material.
Further, the metal micro structure be in plane flakes, the metal micro structure have be mutually perpendicular to what is divided equally
First metal wire and the second metal wire, first metal wire are identical with the length of the second metal wire, first metal wire two
End is connected with two the first metal branch of equal length, and the first metal wire two ends are connected to two the first metal branch
On midpoint, the second metal wire two ends are connected with two the second metal branch of equal length, the second metal wire two ends
It is connected on the midpoint of two the second metal branch, the equal length of first metal branch and the second metal branch.
Further, each first metal branch and each second metal of the alabastrine metal micro structure of the plane point
Two ends be also associated with identical 3rd metal branch, the midpoint of corresponding 3rd metal branch respectively with the first metal
The end points of branch and the second metal branch is connected.
Further, first metal wire and the second metal wire of the alabastrine metal micro structure of the plane is provided with two
Individual kink, the alabastrine metal micro structure of the plane around the axis perpendicular to the first metal wire and the second metal wire intersection point to
The figure that any direction is rotated by 90 ° all is overlapped with artwork.
The present invention is had the advantages that relative to prior art：A kind of Compact range generation device of the present invention is by adopting
The spherical electromagnetic wave from feed outgoing is modulated to into plane electromagnetic wave with metamaterial panel, metamaterial panel process is simple is manufactured,
Rapidoprint is low-cost medium substrate, and cost is reduced, and causes feed and Meta Materials face using ultra-thin metamaterial panel
The distance between plate reduces, and the area ratio for testing dead zone with metamaterial panel is 1:1 relation, it is more anti-than using smooth parabolical
The face of penetrating greatly reducing area, save cost；Simultaneously invention also avoids complicated technology to manufacture smooth reflecting surface.
Description of the drawings
Fig. 1 is the structural representation of the Compact range generation device of the present invention；
Fig. 2 is the perspective diagram of the one of metamaterial unit of core layer of the present invention；
Fig. 3 is the structural representation of the core layer of the present invention；
Fig. 4 is the structural representation of the impedance matching layer lamella of the present invention；
Fig. 5 is the schematic diagram of the alabastrine metal micro structure of plane of the present invention；
Fig. 6 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 5；
Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure of plane shown in Fig. 5.
Fig. 8 is the first stage of the differentiation of the topology of the alabastrine metal micro structure of plane；
Fig. 9 is the second stage of the differentiation of the topology of the alabastrine metal micro structure of plane.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
As shown in Figure 1 to Figure 3, feed 1 is included according to a kind of Compact range generation device of the invention and is arranged on before feed 1
The metamaterial panel 100 of side, the metamaterial panel 100 include core layer 10, and the core layer 10 includes at least one core
Synusia layer 11, the core layer include the base material 13 of sheet and the multiple man-made microstructures 12 being arranged on base material 13,
The core layer 11 can be divided into centrally located border circular areas according to index distribution and be distributed in circle
Multiple annular regions around domain and with the concyclic heart of the border circular areas, in the border circular areas and annular region at same radius
Refractive index it is identical, and as the increase refractive index of radius is gradually reduced in the border circular areas and the respective region of annular region,
Maximum of the minimum of a value of the refractive index of the border circular areas less than the refractive index of the annular region being adjacent, two neighboring ring
Shape region, the minimum of a value of the refractive index of the annular region in inner side are less than the maximum of the refractive index of the annular region in outside
Value.Core layer 11 according to refractive index be divided into border circular areas and multiple annular regions be in order to preferably describe the present invention,
It is not meant to that the core layer 11 of the present invention has this kind of practical structures.In the present invention, feed 1 is arranged on metamaterial panel
On 100 axis, i.e., feed 1 is overlapped with the axis of metamaterial panel 100 with the line at the center of core layer 11.Feedback
Source 1 has support to support with metamaterial panel 100, does not go out support in figure, and which is not the core of the present invention, is propped up using traditional
Support mode.
In the present invention, the index distribution of the core layer 11 meets equation below：
Wherein, i represents core layer segments, and i=1 represents that core layer first paragraph, i=2 represent core synusia
Layer second segment ..., i=p represent the pth section of core layer, the core layer first paragraph is near core layer
Center；
niR () represents that the upper radius of i-th section of core layer is the refractive index value at r；
nminRepresent the minimum of a value of the refractive index of core layer；
λ represents electromagnetic wavelength；
R represents distance of any point apart from core layer center in core layer；
S is vertical range of the feed equivalent point to metamaterial panel；
aiRepresent the maximum at core layer the i-th segment distance core layer center；
D represents the thickness of core layer.
By formula (1) and metamaterial panel determined by formula (2), the super materials of electromagnetic wave Jing that feed 1 sends are enabled to
Being capable of the outgoing in the form of plane wave after charge level plate.
In the present invention, as shown in figure 3, the first base material 13 includes first prebasal plate 131 and the first metacoxal plate of sheet
132, the plurality of first man-made microstructure 12 is folded between the first prebasal plate 131 and the first metacoxal plate 132.Preferably, institute
The thickness for stating core layer is 0.818mm, wherein, the thickness of the first prebasal plate and the first metacoxal plate is 0.4mm, Duo Ge
The thickness of one man-made microstructure is 0.018mm.
In the present invention, the metamaterial panel also includes the impedance matching layer 20 for being arranged on 10 both side surface of core layer, institute
Stating impedance matching layer 20 includes the multiple impedance matching layer lamellas 21 of thickness identical, and the impedance matching layer lamella 21 includes sheet
The second base material 23 and multiple second man-made microstructures (not indicating in figure) being arranged on the second base material 23, the impedance
Index distribution with synusia layer 21 meets equation below：
λ=(nmax-nmin)*(d+2*d1) (4)；
Wherein, j represents the numbering of impedance matching layer lamella, and the numbering of impedance matching layer lamella near feed is m, by presenting
Source is sequentially reduced to core layer direction, numbering, and the numbering near the impedance matching layer lamella of core layer is 1；
Above-mentioned nmaxWith nminIt is identical with the maxima and minima of the refractive index of core layer；
R represents distance of any point to its center on impedance matching layer lamella；
λ represents electromagnetic wavelength；
Thickness of the d1 for impedance matching layer, the i.e. product of the thickness of impedance matching layer lamella and the number of plies.
Thickness of the d for core layer, the i.e. product of the thickness of core layer and the number of plies.
In the present invention, second base material 23 includes second prebasal plate 231 and the second metacoxal plate 232 of sheet, described many
Individual second man-made microstructure is folded between the second prebasal plate 231 and the second metacoxal plate 232, as shown in Figure 4.Preferably, it is described
The thickness of impedance matching layer lamella is 0.818mm, wherein, the thickness of the second prebasal plate and the second metacoxal plate is 0.4mm, multiple
The thickness of the second man-made microstructure is 0.018mm.
Formula (4) for determining the thickness of core layer and matching layer, when core layer thickness determine after, using formula (4)
The thickness of matching layer is obtained, number of plies j of impedance matching layer is obtained divided by per layer of thickness with this thickness.
In the present invention, the arbitrary longitudinal section of the metamaterial panel is of similar shape and area, i.e., core layer with match
Layer is of similar shape longitudinal section with area, and longitudinal section herein refers to the axis in metamaterial panel with metamaterial panel
The vertical section of line.The longitudinal section of the metamaterial panel is square, circular or oval, it is preferable that the metamaterial flat
The longitudinal section of lens is square, and the metamaterial panel for so obtaining is easily worked.Preferably, metamaterial panel of the invention is vertical
Section is the square that the length of side is 272mm.
In one embodiment of the invention, the number of plies of core layer is 4 layers, and the thickness d of core layer is 3.272mm；
Impedance matching layer lamella is distributed in core layer both sides, and per 2 layers of side, the thickness d 1 of impedance matching layer is 1.636mm；
In the present invention, first man-made microstructure, the second man-made microstructure are the metal being made up of copper cash or silver wire
Micro-structural, the metal micro structure are respectively attached to the by etching, plating, carve, photoetching, the method that electronics is carved or ion is carved
One base material, the second base material.Preferably, first man-made microstructure, the second man-made microstructure are the plane snowflake shown in Fig. 5
The metal micro structure of shape develops the metal micro structure of the multiple different topology for obtaining by topology.
In the present invention, core layer can be obtained by the following method, i.e., in the first prebasal plate and the first metacoxal plate
The surface overlying copper of any one, then lead to overetched method and obtain multiple first metal micro structures (micro- knot of multiple first metals
The shape of structure is obtained by Computer Simulation in advance with arrangement), finally the first prebasal plate is pressed together on respectively with the first metacoxal plate
Together, that is, the core layer of the present invention is obtained, the method for pressing can be direct hot pressing, or connect using PUR
Connect, may also be certainly the connection of other machinery formula, such as bolt connection.
In the same manner, impedance matching layer lamella can also be obtained using identical method.Then respectively by multiple core layers
Pressing one, that is, define the core layer of the present invention；Equally, by multiple impedance matching layer lamellas pressing one, that is, define this
The impedance matching layer of invention；Core layer, impedance matching layer pressing one are obtained into the metamaterial panel of the present invention.
In the present invention, the first base material, the second base material are by ceramic material, macromolecular material, ferroelectric material, ferrite material
Or ferromagnetic material etc. is obtained.Macromolecular material is available F4B composites, FR-4 composites etc..Preferably, the present invention
In, first prebasal plate and the first metacoxal plate of the first base material adopt identical FR-4 composite；Equally, in the present invention,
Second prebasal plate and the second metacoxal plate of second base material is also adopted by identical FR-4 composite.
Fig. 5 show the schematic diagram of the alabastrine metal micro structure of plane, and described alabastrine metal micro structure has
It is mutually perpendicular to the first metal wire J1 and the second metal wire J2 for dividing equally, the length of the first metal wire J1 and the second metal wire J2
Identical, the first metal wire J1 two ends are connected with two first metal branch F1, the first metal wire J1 of equal length
Two ends are connected on the midpoint of two the first metal branch F1, and the second metal wire J2 two ends are connected with two of equal length
Second metal branch F2, the second metal wire J2 two ends are connected on the midpoint of two the second metal branch F2, and described first
The equal length of metal branch F1 and the second metal branch F2.
Fig. 6 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 5.Which is in each first metal point
The two ends for propping up F1 and each the second metal branch F2 are respectively connected with identical 3rd metal branch F3, and the corresponding 3rd
The midpoint of metal branch F3 is connected with the end points of the first metal branch F1 and the second metal branch F2 respectively.The rest may be inferred, this
The bright metal micro structure that can also derive other forms.
Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure of plane shown in Fig. 5, the micro- knot of metal of this kind of structure
Structure, the first metal wire J1 and the second metal wire J2 are not straight lines, but folding line, and the first metal wire J1 is equal with the second metal wire J2
Two kink WZ are provided with, but the first metal wire J1 remains vertical with the second metal wire J2 to be divided equally, by arranging bending
Relative position of the direction in portion with kink on the first metal wire and the second metal wire so that the metal micro structure shown in Fig. 7
Around all overlapping with artwork to the figure that any direction is rotated by 90 ° with the axis of the second metal wire intersection point perpendicular to the first metal wire.
Furthermore it is also possible to there is other to deform, for example, the first metal wire J1 and the second metal wire J2 are respectively provided with multiple kink WZ.
In the present invention, the core layer 11 can be divided into the Meta Materials list multiple as shown in Figure 2 of array arrangement
First D, each metamaterial unit D include prebasal plate unit U, metacoxal plate unit V and be arranged on base board unit U, metacoxal plate unit V it
Between the first man-made microstructure 12, the length, width and height of usual metamaterial unit D no more than 1/5th wavelength, preferably ten/
One wavelength, therefore, the size of metamaterial unit D can determine according to the operating frequency of antenna.Fig. 2 is the technique of painting of perspective, with table
Show the position in metamaterial unit D of the first man-made microstructure, as shown in Fig. 2 first man-made microstructure is sandwiched in substrate list
Between first U, metacoxal plate unit V, its place surface is represented with SR.
Known refractive indexWherein μ is relative permeability, and ε is relative dielectric constant, and μ and ε is collectively referred to as electromagnetism to join
Number.It is demonstrated experimentally that when electromagnetic wave is by refractive index dielectric material heterogeneous, can be to the big direction deviation of refractive index.Relative
1 is generally near () in the case that magnetic conductivity is certain, refractive index is only relevant with dielectric constant, in the case where the first base material is selected,
Using only the arbitrary value of metamaterial unit refractive index being realized (in certain limit the first man-made microstructure of electric field response
It is interior), under the center of antenna frequency (12.5GHZ), using simulation software, such as CST, MATLAB etc., obtain a certain by emulating
The dielectric constant of the man-made microstructure (the alabastrine metal micro structure of plane as shown in Figure 5) of given shape is with topology
Refractive index variable change situation, you can list one-to-one data, you can design we needs specific refractive index
The core layer 11 of distribution, can obtain the index distribution of impedance matching layer lamella in the same manner, so as to obtain whole Meta Materials
The index distribution of panel.
In the present invention, the structure design of core layer can be obtained by Computer Simulation (CST emulation), specific as follows：
(1) determine the attachment base material (the first base material) of the first metal micro structure.During this is bright, the first prebasal plate of the first base material and the
One metacoxal plate is made using identical FR-4 composite, and described FR-4 composites are made normal with a predetermined dielectric
Number, such as dielectric constant is 3.3 FR-4 composites.
(2) determine the size of metamaterial unit.The size of the size of metamaterial unit is obtained by the centre frequency of antenna, profit
Obtain its wavelength with frequency, then take less than wavelength 1/5th a numerical value as metamaterial unit D length CD with it is wide
Degree KD.In the present invention, metamaterial unit D is that long CD as shown in Figure 2 and width KD is 2.5mm, thickness HD for 0.818mm
Square platelet.
(3) material and topological structure of metal micro structure are determined.In the present invention, the material of metal micro structure is copper, metal
The topological structure of micro-structural is the alabastrine metal micro structure of plane shown in Fig. 5, and its live width W is consistent everywhere；Topology herein
Structure, refers to the basic configuration that topology is developed.
(4) determine the topology parameter of metal micro structure.As shown in figure 5, in the present invention, the alabastrine metal of plane is micro-
The topology parameter of structure includes live width W of metal micro structure, length a of the first metal wire J1, the first metal branch F1's
Length b.
(5) determine the differentiation restrictive condition of the topology of metal micro structure.In the present invention, the topological shape of metal micro structure
The differentiation restrictive condition of shape has, and minimum spacing WL between metal micro structure is (i.e. as shown in figure 8, metal micro structure and Meta Materials
The long side of unit or the distance of broadside are WL/2), live width W of metal micro structure, the size of metamaterial unit；Due to processing technology
Limit, WL is more than or equal to 0.1mm, and equally, live width W is also intended to more than or equal to 0.1mm.In the present invention, WL takes 0.1mm, and W takes
0.3mm, the size of metamaterial unit is length and a width of 2.5mm, and thickness is 0.818mm, now the topology of metal micro structure
Parameter only has two variables of a and b.The topology of metal micro structure by the differentiation mode as shown in Fig. 8 to Fig. 9, correspondence
In a certain CF (such as 12.5GHZ), a continuous variations in refractive index scope can be obtained.
Specifically, the differentiation of the topology of the metal micro structure includes that two stages, (it is basic that topology is developed
The metal micro structure being shaped as shown in Fig. 5)：
First stage：According to restrictive condition is developed, in the case where b values keep constant, a values are changed to most from minimum of a value
Big to be worth, the metal micro structure in this evolution process is " ten " font when minimum of a value (a take except).In the present embodiment, the minimum of a
Value is 0.3mm (live width W), and the maximum of a is (CD-WL), i.e. 2.5-0.1mm, then the maximum of a is 2.4mm.Therefore, exist
In first stage, the differentiation of the topology of metal micro structure is as shown in figure 8, i.e. from the square JX1 that the length of side is W, gradually drill
Become maximum " ten " font topology JD1, in maximum " ten " font topology JD1, the first metal wire J1 and the
Two metal wire J2 length are 2.4mm, and width W is 0.3mm.In the first phase, with the topology of metal micro structure
Differentiation, the refractive index of corresponding metamaterial unit continuously increases ((one CF of respective antenna), when frequency is
During 12.5GHZ, minimum of a value n of the corresponding refractive index of metamaterial unitminFor 1.91.
Second stage：According to restrictive condition is developed, when a increases to maximum, a keeps constant；Now, by b from minimum
Value increases continuously maximum, and the metal micro structure in this evolution process is plane flakes.In the present embodiment, the minimum of b
Value is 0.3mm (live width W), and the maximum of b is (CD-WL-2W), i.e. 2.5-0.1-2*0.3mm, then the maximum of b is
1.8mm.Therefore, in second stage, the differentiation of the topology of metal micro structure is as shown in figure 9, i.e. from maximum " ten " word
Shape topology JD1, is gradually evolved into alabastrine topology JD2 of plane of maximum, the plane flakes of maximum herein
Topology JD2 refer to that the first metal branch J1 can not be extended again with length b of the second metal branch J2, otherwise
One metal branch will intersect with the second metal branch, and the maximum of b is 1.8mm.Now, the first metal wire and the second metal
Line length is 2.4mm, and width is the length of 0.3mm, the first metal branch and the second metal branch and is 1.8mm, width
For 0.3mm.In second stage, with the differentiation of the topology of metal micro structure, the folding of corresponding metamaterial unit
Penetrate rate and continuously increase (one CF of respective antenna), when frequency is 12.5GHZ, the corresponding refractive index of metamaterial unit is most
Big value nmaxFor 5.6.
The variations in refractive index scope that metamaterial unit is obtained by above-mentioned differentiation meets design needs.If above-mentioned develop
Variations in refractive index scope to metamaterial unit is unsatisfactory for designing needs, and such as maximum is too little, then change WL and W, imitate again
Very, until obtaining the variations in refractive index scope that we need.
According to formula (1), after a series of metamaterial unit that emulation is obtained is according to its corresponding refractive index arrangement
(actually arrangement of multiple first man-made microstructures of different topology shape in the first base material), can obtain the present invention
Core layer.
In the same manner, the impedance matching layer lamella of the present invention can be obtained.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention not by above-described embodiment
Limit, other any Spirit Essences for not running counter to the present invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of Compact range generation device, described device include feed, it is characterised in that described device also includes being arranged on described
Metamaterial panel in front of feed, the metamaterial panel include core layer, and the core layer includes at least one core synusia
Layer, the core layer include the first base material of sheet and multiple first artificial micro- knots being arranged in the first base material
Structure, the core layer can be divided into centrally located border circular areas according to index distribution and be distributed in circle
Multiple annular regions around domain and with the concyclic heart of the border circular areas, in the border circular areas and annular region at same radius
Refractive index it is identical, and as the increase refractive index of radius is gradually reduced in the border circular areas and the respective region of annular region,
Maximum of the minimum of a value of the refractive index of the border circular areas less than the refractive index of the annular region being adjacent, two neighboring ring
Shape region, the minimum of a value of the refractive index of the annular region in inner side are less than the maximum of the refractive index of the annular region in outside
Value.
2. a kind of Compact range generation device according to claim 1, it is characterised in that the first base material includes sheet
First prebasal plate and the first metacoxal plate, the plurality of first man-made microstructure be folded in the first prebasal plate and the first metacoxal plate it
Between.
3. a kind of Compact range generation device according to claim 1, it is characterised in that the core layer includes multiple thickness
Identical and index distribution identical core layer, multiple core layer pressing one.
4. a kind of Compact range generation device according to claim 1, it is characterised in that the center of circle is core layer
The variations in refractive index scope of center, the border circular areas and multiple annular regions is identical, refractive index n of the core layer
R () distribution meets equation below：
Wherein, i represents core layer segments, and i=1 represents that core layer first paragraph, i=2 represent core layer
Two sections ..., i=p represent the pth section of core layer, the core layer first paragraph is near in core layer
The heart；
niR () represents that the upper radius of i-th section of core layer is the refractive index value at r；
nminRepresent the minimum of a value of the refractive index of core layer；
λ represents electromagnetic wavelength；
R represents distance of any point apart from core layer center in core layer；
S is vertical range of the feed equivalent point to metamaterial panel；
aiRepresent the maximum at core layer the i-th segment distance core layer center；
D represents the thickness of the core layer.
5. a kind of Compact range generation device according to claim 4, it is characterised in that it is right that the metamaterial panel also includes
Title is distributed in the impedance matching layer of core layer both side surface, and the impedance matching layer includes the multiple impedance matching layers of thickness identical
Lamella, the impedance matching layer lamella include the second base material of sheet and be arranged on the second base material it is multiple second artificial micro-
Structure, the index distribution of the impedance matching layer lamella meet equation below：
λ=(nmax-nmin)*(d+2*d1)；
Wherein, j represents the numbering of impedance matching layer lamella, and the numbering of impedance matching layer lamella near feed is m, from feed to
Core layer direction, numbering are sequentially reduced, and the numbering near the impedance matching layer lamella of core layer is 1；
Above-mentioned nmaxWith nminIt is identical with the maxima and minima of the refractive index of core layer；
R represents distance of any point to its center on impedance matching layer lamella；
λ represents electromagnetic wavelength；
Thickness of the d1 for impedance matching layer；
Thickness of the d for core layer.
6. a kind of Compact range generation device according to claim 5, it is characterised in that second base material includes sheet
Second prebasal plate and the second metacoxal plate, the plurality of second man-made microstructure be folded in the second prebasal plate and the second metacoxal plate it
Between.
7. a kind of Compact range generation device according to claim 6, it is characterised in that first man-made microstructure and
Two man-made microstructures are the metal micro structure being made up of copper cash or silver wire, and the metal micro structure is by etching, plating, brill
Quarter, photoetching, the method that electronics is carved or ion is carved are respectively attached on the first base material and the second base material.
8. Compact range generation device according to claim 7, it is characterised in that the metal micro structure is in plane snowflake
Shape, the metal micro structure have and are mutually perpendicular to the first metal wire and the second metal wire divided equally, first metal wire and the
The length of two metal wires is identical, and the first metal wire two ends are connected with two the first metal branch of equal length, and described
One metal wire two ends are connected on the midpoint of two the first metal branch, and the second metal wire two ends are connected with equal length
Two the second metal branch, the second metal wire two ends are connected on the midpoint of two the second metal branch, first gold medal
Category branch and the equal length of the second metal branch.
9. a kind of Compact range generation device according to claim 8, it is characterised in that the alabastrine metal of the plane is micro-
The two ends of the first metal branch of each of structure and each the second metal branch are also associated with identical 3rd metal branch,
The midpoint of corresponding 3rd metal branch is connected with the end points of the first metal branch and the second metal branch respectively.
10. a kind of Compact range generation device according to claim 9, it is characterised in that the alabastrine metal of the plane
First metal wire and the second metal wire of micro-structural is provided with two kinks, the alabastrine metal micro structure of the plane around
All overlap with artwork to the figure that any direction is rotated by 90 ° with the axis of the second metal wire intersection point perpendicular to the first metal wire.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286815A (en) * | 1997-11-18 | 2001-03-07 | 艾利森公司 | Compact antenna feed circuits |
| EP1065509B1 (en) * | 1999-07-02 | 2004-11-03 | FUBA Automotive GmbH & Co. KG | Diagnostic device for multiple antenna system |
| CN1588699A (en) * | 2004-07-30 | 2005-03-02 | 摩比天线技术（深圳）有限公司 | Aray antenna optimum gain shaping method |
| CN101013772A (en) * | 2006-09-13 | 2007-08-08 | 北京航空航天大学 | Low-frequency ultra-wideband compact feed |
| CN101207881A (en) * | 2006-12-19 | 2008-06-25 | 中兴通讯股份有限公司 | Apparatus and method for testing mobile terminal near field radiation |
| CN101231316A (en) * | 2006-11-30 | 2008-07-30 | 中兴通讯股份有限公司 | Method for determining antenna minimum test distance |
| EP2003800B1 (en) * | 2007-06-15 | 2009-07-15 | Research In Motion Limited | System for determining total isotropic sensitivity (TIS) using target received signal strength indicator (RSSI) value and related methods |
| CN101576591A (en) * | 2009-06-09 | 2009-11-11 | 北京邮电大学 | System and method for measuring compact range antenna by three reflectors |
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
| EP2322944A2 (en) * | 2009-11-17 | 2011-05-18 | Astrium GmbH | High frequency measurement assembly and method for measuring a high frequency test subject, in particular an antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7965228B2 (en) * | 2007-11-05 | 2011-06-21 | The Aerospace Corporation | Quasi-compact range |
-
2012
- 2012-02-29 CN CN201210050862.6A patent/CN103293394B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286815A (en) * | 1997-11-18 | 2001-03-07 | 艾利森公司 | Compact antenna feed circuits |
| EP1065509B1 (en) * | 1999-07-02 | 2004-11-03 | FUBA Automotive GmbH & Co. KG | Diagnostic device for multiple antenna system |
| CN1588699A (en) * | 2004-07-30 | 2005-03-02 | 摩比天线技术（深圳）有限公司 | Aray antenna optimum gain shaping method |
| CN101013772A (en) * | 2006-09-13 | 2007-08-08 | 北京航空航天大学 | Low-frequency ultra-wideband compact feed |
| CN101231316A (en) * | 2006-11-30 | 2008-07-30 | 中兴通讯股份有限公司 | Method for determining antenna minimum test distance |
| CN101207881A (en) * | 2006-12-19 | 2008-06-25 | 中兴通讯股份有限公司 | Apparatus and method for testing mobile terminal near field radiation |
| EP2003800B1 (en) * | 2007-06-15 | 2009-07-15 | Research In Motion Limited | System for determining total isotropic sensitivity (TIS) using target received signal strength indicator (RSSI) value and related methods |
| CN101576591A (en) * | 2009-06-09 | 2009-11-11 | 北京邮电大学 | System and method for measuring compact range antenna by three reflectors |
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
| EP2322944A2 (en) * | 2009-11-17 | 2011-05-18 | Astrium GmbH | High frequency measurement assembly and method for measuring a high frequency test subject, in particular an antenna |
Non-Patent Citations (2)
| Title |
|---|
| 天线紧缩场测试技术研究;张晓平;《航天器环境工程》;20061231;第23卷(第06期);第321-328页 * |
| 紧缩场超高频（UHF）天线测试方法的研究;张晓平;《航天器工程》;20080331;第17卷(第02期);第63-68页 * |
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