CN103236581A - Left-handed material latticed patch antenna with multi-layer composite heterostructure - Google Patents
Left-handed material latticed patch antenna with multi-layer composite heterostructure Download PDFInfo
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- CN103236581A CN103236581A CN2013101224448A CN201310122444A CN103236581A CN 103236581 A CN103236581 A CN 103236581A CN 2013101224448 A CN2013101224448 A CN 2013101224448A CN 201310122444 A CN201310122444 A CN 201310122444A CN 103236581 A CN103236581 A CN 103236581A
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Abstract
The invention relates to a left-handed material latticed patch antenna with multi-layer composite heterostructure. The left-handed material latticed patch antenna comprises four layers of medium substrates, a metal grounding frame, metal bars, a latticed metal radiation sheet, a micro-strip feeder wire, a helical metal wire, a square metal resonance ring and an 'H'-shaped metal resonance ring. Near a certain frequency, localization degree of electromagnetic energy is remarkably improved by the left-handed material latticed patch antenna, antenna gain is remarkably increased, echo loss is lowered, performance of the antenna is well improved, and the left-handed material latticed patch antenna can be widely applied to the fields of mobile communication, satellite communication and aerospace and the like.
Description
Technical field
The invention belongs to communication technical field, be specifically related to the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials.
Background technology
In the Nature, the dielectric constant of all material and magnetic permeability are all for just, and this class material also is known as and meets right-hand rule material (RHM), and reason is to become the right-hand rule by the electric field intensity of this material electromagnetic field, magnetic vector, wave vector.But negative permittivity and negative magnetic-inductive capacity material can form by manual manufacture, and people are referred to as left hand medium or left-handed materials (LHM).It is as a kind of novel artificial electromagnetic material, caused that in recent years people study interest greatly, as far back as nineteen sixty-eight, V.G.Veselageo has just studied the unusual electromagnet phenomenon among the LHM theoretically, 2000, people such as smith have produced the negative index medium LHM of microwave section first in the laboratory unusual electromagnetic property represented it in light and electromagnetic wave field potential significant application value.
E.Yablonovitch and S.John proposed the concept of photonic crystal in 1987, photonic crystal refers to that refractive index is the structure of periodic distribution in the space, electromagnetic wave is similar to the kinetic characteristic of electronics in semiconductor crystal in the property class of this crystals transmission, so be called photonic crystal or electromagnetic crystals again, when electromagnetic wave incident electromagnetism (photon) crystal, can forbid the electromagnetic wave propagation in a certain frequency range, this frequency range is called the frequency forbidden band, abbreviates the forbidden band as.Yablonovitch in 1989 and Gmitte take the lead in having made the photonic crystal with 8000 " atoms " that is made of nine layers of styrene plate, and observed a forbidden band that surpasses 2GHz at the microwave frequency band of 6.5GHz, this characteristic makes electromagnetism (photon) crystal be applied to many aspects such as microwave circuit, antenna.
Heterojunction is made up of two different 2 D photon crystals, its distortion at the interface can produce local electromagnet mode and corresponding guided modes, and this characteristic is applied to common paster antenna is combined to form new MULTILAYER COMPOSITE heterostructure left hand medium system, can better improve the performance of antenna.
The present invention obtains corresponding performance parameter by the research to the latticed paster antenna system of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials, uses the NRW method to calculate the latticed paster antenna equivalent refractive index of this MULTILAYER COMPOSITE heterostructure left-handed materials.Research structure shows, the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials is near a certain frequency, and the localization degree of electromagnetic energy is significantly improved, and contrasts common paster antenna, gain obviously increases, and shows as lower return loss.
Summary of the invention
The present invention mainly provides a kind of MULTILAYER COMPOSITE heterostructure left-handed materials latticed paster antenna, in certain frequency range, has strengthened the electromagnetic wave strength of resonance, has improved the localization degree of electromagnetic energy, thereby reduces the return loss of antenna, has increased gain.
Realize technical scheme of the present invention: the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials, comprise ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4), compound paster antenna (7), helical wire (8), square metal resonant ring (9), wide bonding jumper (10), " worker " shape metal resonant ring (11), thin bonding jumper (12), metal grounding frame (13), bonding jumper (14), driving source, ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) superposes successively, compound paster antenna (7) is connected to form by latticed metal radiation fin (5) and microstrip feed line (6), compound paster antenna (7) is fixed on the front of ground floor medium substrate (1), helical wire (8) and the cross arrangement of square metal resonant ring (9) periodicity are in the grid of latticed metal radiation fin (5), two wide bonding jumpers (10) are fixed on the edge of ground floor medium substrate (1), second layer medium substrate (2) is identical with the 4th layer of medium substrate (4) structure, all fixedly there is the square metal resonant ring (9) and " worker " shape metal resonant ring (11) of thin bonding jumper (12) and periodically cross arrangement in the front, thin bonding jumper (12) is embedded between square metal resonant ring (9) and " worker " shape metal resonant ring (11), fixedly there is helical wire (8) in the 3rd layer of medium substrate (3) front, square metal resonant ring (9), it arranges identical with arranging of the helical wire (8) of ground floor medium substrate (1) and square metal resonant ring (9), thin bonding jumper (12) is embedded between helical wire (8) and square metal resonant ring (9), the reverse side of the 4th layer of medium substrate (4) fixedly has metal grounding frame (13), the rectangle frame of metal grounding frame (13) is embedded in bonding jumper (14), driving source links to each other with microstrip feed line (6) by plain conductor one end, one end links to each other with metal grounding frame (13), and driving source is given latticed metal radiation fin (5) feed by microstrip feed line (6).
The circuit board lithographic technique is all adopted in ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) front, etch latticed metal radiation fin (5), microstrip feed line (6), helical wire (8), square metal resonant ring (9) and wide bonding jumper (10) at ground floor medium substrate (1), helical wire (8) and square metal resonant ring (9) periodically cross arrangement form heterostructure in the grid of latticed metal radiation fin (5).2 wide bonding jumpers (10) are fixed on ground floor medium substrate (1) edge.Second layer medium substrate (2) etches periodically cross arrangement square metal resonant ring (9) and " worker " shape metal resonant rings (11) with the 4th layer of medium substrate (4) front, forms heterostructure.8 thin bonding jumpers (12) are embedded between the square metal resonant ring (9) and " worker " shape metal resonant ring (11) of cross arrangement.The positive etching helical wire of the 3rd layer of medium substrate (3) (8) and square metal resonant ring (9), it arranges identical with the structure of square metal resonant ring (9) with the helical wire (8) of ground floor medium substrate (1), and embeds 8 thin bonding jumpers (12) between helical wire (8) and square metal resonant ring (9).The 4th layer of medium substrate (4) reverse side fixedly has rectangle frame metal grounding frame (13), and the bonding jumper (14) of 5 periodic arrangement is fixedly arranged in the frame.Microstrip feed line (6) links to each other with latticed metal radiation fin (5), is used for the electric wave signal feed-in source as latticed metal radiation fin (5).
The latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials is of a size of H after wherein four layers of medium substrate superpose successively
l(360mm) * L
l(360mm) * D
l(10mm), ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) are grown and be wide all is 360mm, the relative dielectric constant of ground floor medium substrate (1) and the 3rd layer of medium substrate (3) is 2.0, and thickness is 3mm; The relative dielectric constant of second layer medium substrate (2) and the 4th layer of medium substrate (4) is 10, and thickness is 2mm, and fixedly there is latticed metal radiation fin (5) in ground floor medium substrate (1) front, the outer length of side L of latticed metal radiation fin (5) housing
2=340mm, wide D
2=4mm, housing is apart from ground floor medium substrate (1) edge D
9=10mm, grid live width L
3=L
4=2mm, 10 * 10 helical wire (8) and square metal resonant ring (9) are arranged in the grid intercycle sex-intergrade of latticed metal radiation fin (5), form heterostructure, 2 long H
1Be 360mm, wide L
5Be 6mm, be of a size of H
1(360mm) * L
5Wide bonding jumper (10) (6mm) is fixed on ground floor medium substrate (1) edge, helical wire (8) live width D
10=2.5mm, the adjacent lines interval D
11=2.5mm, minimum diameter R
1=2.5mm, the first external diameter R
2=10mm, the second external diameter R
3=12.5mm; The outer shroud length of side L of square metal resonant ring (9)
7=20mm, interior ring length of side L
8=10mm, the live width D of ring
12=2mm, distance between centers of tracks D
13=3mm, ring opening D
14=D
15=3mm, adjacent helical wire (8) and square metal resonant ring (9) space D
7=D
8=31mm, the length of microstrip feed line (6) is 10mm, wide is L
6=4.7mm, second layer medium substrate (2) is identical with the 4th layer of medium substrate (4) structure, positive square metal resonant ring (9) and " worker " shape metal resonant ring (11) that 10 * 10 periodicity cross arrangements are fixedly arranged, form heterostructure, 8 thin bonding jumpers (12) that are of a size of 320mm * 5mm are embedded between the square metal resonant ring (9) and " worker " shape metal resonant ring (11) of cross arrangement adjacent square metal resonant ring (9) and " worker " shape metal resonant ring (11) space D
18=D
19=31mm, " worker " shape metal resonant ring (11) length of side D
20=20mm, live width D
21=2mm, opening D
22=3mm, brachium L
9=8.5mm, the wide H of arm
9=6mm, fixedly there are helical wire (8) and square metal resonant ring (9) in the 3rd layer of medium substrate (3) front, it arranges identical with arranging of square metal resonant ring (9) with the helical wire (8) of ground floor medium substrate (1), 8 thin bonding jumpers (12) that are of a size of 320mm * 5mm are embedded between the helical wire (8) and square metal resonant ring (9) of cross arrangement, the 4th layer of medium substrate (4) reverse side fixedly has metal grounding frame (13), metal grounding frame (13) is rectangular box-like structure, the housing edge of metal grounding frame (13) and the 4th layer of medium substrate (4) edge coincide, and width is D
28The bonding jumper (14) that 5 periodic arrangement are fixedly arranged in=the 40mm, the rectangle frame of metal grounding frame (13), the long L of bonding jumper (14)
10=260mm, wide H
10=40mm, space D
27=15mm, driving source adopts the Gaussian discrete source.
In order to verify validity of the present invention, utilize the XFDTD of simulation software to test the latticed patch-antenna structure of above-mentioned this MULTILAYER COMPOSITE heterostructure left-handed materials, this software is the all-wave 3 D electromagnetic simulation software based on electromagnetism numerical computation method FDTD (Finite-Difference Time-Domain Method) of U.S. REMCOM company exploitation, this software emulation result reliability height.By the emulation testing of this software, can obtain the performance parameter value of antenna performance correspondence, as return loss (s11 is also referred to as reflection coefficient), transmission coefficient (s21), voltage standing wave ratio (VSWR) and gain (Gain) etc.By analyzing these numerical value, can compare the quality of antenna performance.
The present invention forms the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials by common paster antenna having been added heterostructure left-handed materials textural association, its characteristic shows as lower return loss and bigger antenna gain, from the angle analysis of theory its former because: on the one hand, the electromagnetic wave resonances that produce at the resonance frequency place, make dielectric constant and the magnetic permeability of each layer composite construction be negative value, its refractive index also is to be negative value, form the amplification of electromagnetic " tunnel " effect and evanescent wave, thus, strengthened the electromagnetic wave strength of resonance greatly, localization degree to electromagnetic energy is significantly improved, cause antenna gain obviously to increase, and show as lower return loss; On the other hand, behind the heterostructure flush antenna, cause the heterogeneous interface place to distort, make the height localization of electromagnetic wave local mode higher gain near a certain frequency, to occur thereby obtain electromagnetic wave energy.The MULTILAYER COMPOSITE heterostructure constitutes photon crystal structure, form electromagnetism (photon) forbidden band, suppress along the surface wave of substrate floor media propagation, thereby increase electromagnetic wave to the reflected energy of free space, thereby improved paster antenna gain and signal to noise ratio, improved the performance of antenna preferably.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 1 is the latticed paster antenna Facad structure of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials schematic diagram;
1-ground floor medium substrate; 2-second layer medium substrate; The 3rd layer of medium substrate of 3-; The 4th layer of medium substrate of 4-; The latticed metal radiation fin of 5-; The 6-microstrip feed line; The compound paster antenna of 7-; The 8-helical wire; 9-square metal resonant ring; The wide bonding jumper of 10-.
Fig. 2 is the latticed paster antenna helical wire of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials structural representation;
Fig. 3 is the latticed paster antenna square metal of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials resonant ring structural representation;
Fig. 4 is second layer medium substrate, four layers of medium substrate Facad structure schematic diagram (second, four layer of medium substrate structure is identical) of a kind of MULTILAYER COMPOSITE left-handed materials of the present invention rectangle frame paster antenna;
2 (4)-the second (four) layer medium substrate; 9-square metal resonant ring; 11-" worker " shape metal resonant ring; The thin bonding jumper of 12-.
Fig. 5 is the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials " worker " shape metal resonant ring structural representation;
Fig. 6 is the 3rd layer of medium substrate Facad structure schematic diagram of the latticed paster antenna of the present invention's a kind of MULTILAYER COMPOSITE heterostructure left-handed materials;
The 3rd layer of medium substrate of 3-; The 8-helical wire; 9-square metal resonant ring; The thin bonding jumper of 12-.
Fig. 7 is metal grounding frame and the bonding jumper structural representation of the 4th layer of medium substrate reverse side of the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials;
13-metal grounding frame; The 14-bonding jumper.
Fig. 8 is latticed each layer of paster antenna of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials textural association schematic diagram;
Fig. 9 is the DIELECTRIC CONSTANT that the latticed paster antenna ground floor of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials contains the medium of left-handed materials
r, magnetic permeability μ
rAnd refractive index n;
Figure 10 is the latticed paster antenna second of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials, four layers of DIELECTRIC CONSTANT that contains the medium of left-handed materials
r, magnetic permeability μ
rAnd refractive index n;
Figure 11 is the 3rd layer of DIELECTRIC CONSTANT that contains the medium of left-handed materials of the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials
r, magnetic permeability μ
rAnd refractive index n.
Figure 12 is the latticed paster antenna return loss of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials schematic diagram;
Figure 13 is the latticed paster antenna gain of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials schematic diagram;
Figure 14 is the latticed paster antenna voltage standing wave ratio of a kind of MULTILAYER COMPOSITE heterostructure of the present invention left-handed materials schematic diagram;
Embodiment
Adopt the circuit board lithographic technique, in the latticed patch-antenna structure of this MULTILAYER COMPOSITE heterostructure left-handed materials as shown in Figure 1, at ground floor medium substrate (1) the positive latticed metal radiation fin of etching (5), microstrip feed line (6), helical wire (8), square metal resonant ring (9), wide bonding jumper (10) respectively.Second layer medium substrate (2) and the 4th layer of medium substrate (4) positive etching square metal resonant ring (9), " worker " shape metal resonant ring (11), thin bonding jumper (12).The 3rd layer of medium substrate (3) etching wire spiral (8), square metal resonant ring (9) and thin bonding jumper (12).The 4th layer of medium substrate (4) reverse side fixedly has metal grounding frame (13) and bonding jumper (14).Microstrip feed line (6) is connecting latticed metal radiation fin (5), as the electric wave signal feed-in source of latticed metal radiation fin (5).
The present invention is the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials, as shown in Figure 1, is of a size of H after four layers of medium substrate stack of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials
l(360mm) * L
l(360mm) * D
l(10mm), ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) are grown and be wide all is 360mm, the relative dielectric constant of ground floor medium substrate (1) and the 3rd layer of medium substrate (3) is 2.0, and thickness is 3mm; The relative dielectric constant of second layer medium substrate (2) and the 4th layer of medium substrate (4) is 10, and thickness is 2mm, and fixedly there is latticed metal radiation fin (5) in ground floor medium substrate (1) front, the outer length of side L of latticed metal radiation fin (5) housing
2=340mm, wide D
2=4mm, housing is apart from ground floor medium substrate (1) edge D
9=10mm, grid live width L
3=L
4=2mm vertically goes up mesh spacing and is: except the two row mesh spacings at edge are D
3=42mm, other spacings are D
5=29mm, mesh spacing transversely is: the two row mesh spacings that remove the edge are D
4=42mm, other spacings are D
6=29mm, 10 * 10 helical wire (8) and square metal resonant ring (9) are arranged in the grid intercycle sex-intergrade of latticed metal radiation fin (5), form heterostructure, 2 long H
1Be 360mm, wide L
5Be 6mm, be of a size of H
1(360mm) * L
5Wide bonding jumper (10) (6mm) is fixed on ground floor medium substrate (1) edge, helical wire (8) live width D
10=2.5mm, the adjacent lines interval D
11=2.5mm, minimum diameter R
1=2.5mm, the first external diameter R
2=10mm, the second external diameter R
3=12.5mm; The outer shroud length of side L of square metal resonant ring (9)
7=20mm, interior ring length of side L
8=10mm, the live width D of ring
12=2mm, distance between centers of tracks D
13=3mm, ring opening D
14=D
15=3mm, adjacent helical wire (8) and square metal resonant ring (9) space D
7=D
8=31mm, the length of microstrip feed line (6) is 10mm, wide is L
6=4.7mm, second layer medium substrate (2) is identical with the 4th layer of medium substrate (4) structure, positive square metal resonant ring (9) and " worker " shape metal resonant ring (11) that 10 * 10 periodicity cross arrangements are fixedly arranged, form heterostructure, except middle two row, embed a thin bonding jumper (12) between the square metal resonant ring (9) of every row cross arrangement and " worker " shape metal resonant ring (11), respectively embed 8 thin bonding jumpers (12) on second layer medium substrate (2) and the 4th layer of medium substrate (4), thin bonding jumper (12) is of a size of 320mm * 5mm, except middle two adjacent thin bonding jumpers (12) space D
17=57mm, all the other adjacent thin bonding jumper (12) space D
16=26mm, adjacent square metal resonant ring (9) and " worker " shape metal resonant ring (11) space D
18=D
19=31mm, " worker " shape metal resonant ring (11) length of side D
20=20mm, live width D
21=2mm, opening D
22=3mm, brachium L
9=8.5mm, the wide H of arm
9=6mm, fixedly there are helical wire (8) and square metal resonant ring (9) in the 3rd layer of medium substrate (3) front, it arranges identical with arranging of square metal resonant ring (9) with the helical wire (8) of ground floor medium substrate (1), except middle two row, embed a thin bonding jumper (12) between the helical wire of every row cross arrangement (8) and square metal resonant ring (9), the 3rd layer of medium substrate (3) gone up and embedded 8 thin bonding jumpers (12), thin bonding jumper (12) is of a size of 320mm * 5mm, except middle two adjacent thin bonding jumpers (12) space D
24=57mm, all the other adjacent thin bonding jumper (12) space D
23=26mm, the 4th layer of medium substrate (4) reverse side fixedly has metal grounding frame (13), and metal grounding frame (13) is rectangular box-like structure, and metal grounding frame (13) housing edge and the 4th layer of medium substrate (4) edge coincide width D
28The bonding jumper (14) that 5 periodic arrangement are fixedly arranged in=the 40mm, the rectangle frame of metal grounding frame (13), the long L of bonding jumper (14)
10=260mm, wide H
10=40mm, space D
27=15mm, driving source adopts the Gaussian discrete source.
For verifying whether designed structure is left-handed materials, with XFDTD Electromagnetic Simulation software the latticed paster antenna of this a kind of MULTILAYER COMPOSITE heterostructure left-handed materials is carried out emulation experiment, obtained the scattering parameter of every layer of composite construction, be reflection coefficient (s11) and transmission coefficient (s21), extracted effective dielectric constant and the effective permeability electromagnetic parameter of every layer on this MULTILAYER COMPOSITE left-handed materials structure by NRW transmission/reflection algorithm, Fig. 8, Fig. 9, Figure 10 have provided the effective permeability μ of every layer of composite construction that the parameter that obtained by emulation extracts respectively
r, effective dielectric constant ε
rAnd refractive index n.Near f=4.52GHz frequency place antenna resonance point, the effective permeability μ of every layer of composite construction
rWith effective dielectric constant ε
rBe negative value all, pass through ε
rAnd μ
r, can calculate every layer of refractive index and be respectively n
1(ground floor refractive index)=-3.9, n
2(second layer refractive index)=n
4(the 4th layer of refractive index)=-1.1, n
3(the 3rd layer of refractive index)=-3.9.Show: by the combination of common paster antenna, helical wire, square metal resonant ring, " worker " shape metal resonant ring and bonding jumper, the latticed paster antenna system of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials that forms, it all is negative value that this system can make each layer composite construction magnetic permeability and dielectric constant, refractive index is negative value also, is a kind of left-handed materials.
The antenna performance parameters that obtains with XFDTD emulation is analyzed the performance of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials.Be the return loss s11 performance plot of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials as shown in figure 12, at frequency 4.52GHz place minimum echo loss s11=-32.60dB, illustrate that this composite structuredly can further reduce return loss.
Bandwidth is narrower to be a major defect of microstrip antenna, is easily known by Figure 12, and this MULTILAYER COMPOSITE left hand medium antenna based on photon crystal structure is 1.06GHz in the f=4.52GHz bandwidth, broader bandwidth, and this has improved the performance of microstrip antenna greatly.
Figure 13 shows that gain characteristic figure, after adding the heterostructure left-handed materials, the latticed paster antenna forward gain of this MULTILAYER COMPOSITE heterostructure left-handed materials maximum is about 9.444dB, illustrates in ordinary rectangular frame paster antenna to add the gain that the heterostructure left-handed materials can bigger raising paster antenna.
Figure 14 shows that voltage standing wave ratio VSWR performance plot, the minimum voltage standing-wave ratio is 1.048 at frequency 4.52GHz place, very close to ideal value 1.
By the research to the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials, find that its characteristic shows as lower return loss and bigger antenna gain, on the one hand, empirical tests all is negative value to kind of the latticed paster antenna system of MULTILAYER COMPOSITE heterostructure left-handed materials each layer composite construction magnetic permeability and dielectric constant near resonance frequency, refractive index also is negative value, have left-handed materials character, can reduce antenna return loss, increased gain; On the other hand, behind the heterostructure flush antenna, cause the heterogeneous interface place to distort, make the height localization of electromagnetic wave local mode higher gain near a certain frequency, to occur thereby obtain electromagnetic wave energy.The MULTILAYER COMPOSITE heterostructure constitutes photon crystal structure, forms electromagnetism (photon) forbidden band, and the electromagnetic wave in the frequency range of forbidden band will be subjected to constraint and can not propagate to any direction, thereby increases electromagnetic wave to the reflected energy of free space.Therefore, the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials has obviously increased antenna gain, and shows as lower return loss, improves the performance of antenna well.
The present invention adopts the circuit board lithographic technique to make antenna, and concrete structure is of a size of: be of a size of H after four layers of medium substrate stack of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials
l(360mm) * L
l(360mm) * D
l(10mm), ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) are grown and be wide all is 360mm, the relative dielectric constant of ground floor medium substrate (1) and the 3rd layer of medium substrate (3) is 2.0, and thickness is 3mm; The relative dielectric constant of second layer medium substrate (2) and the 4th layer of medium substrate (4) is 10, and thickness is 2mm, and fixedly there is latticed metal radiation fin (5) in ground floor medium substrate (1) front, the outer length of side L of latticed metal radiation fin (5) housing
2=340mm, wide D
2=4mm, housing is apart from ground floor medium substrate (1) edge D
9=10mm, grid live width L
3=L
4=2mm vertically goes up mesh spacing and is: except the two row mesh spacings at edge are D
3=42mm, other spacings are D
5=29mm, mesh spacing transversely is: the two row mesh spacings that remove the edge are D
4=42mm, other spacings are D
6=29mm, 10 * 10 helical wire (8) and square metal resonant ring (9) are arranged in the grid intercycle sex-intergrade of latticed metal radiation fin (5), form heterostructure, 2 long H
1Be 360mm, wide L
5Be 6mm, be of a size of H
1(360mm) * L
5Wide bonding jumper (10) (6mm) is fixed on ground floor medium substrate (1) edge, helical wire (8) live width D
10=2.5mm, the adjacent lines interval D
11=2.5mm, minimum diameter R
1=2.5mm, the first external diameter R
2=10mm, the second external diameter R
3=12.5mm; The outer shroud length of side L of square metal resonant ring (9)
7=20mm, interior ring length of side L
8=10mm, the live width D of ring
12=2mm, distance between centers of tracks D
13=3mm, ring opening D
14=D
15=3mm, adjacent helical wire (8) and square metal resonant ring (9) space D
7=D
8=31mm, the length of microstrip feed line (6) is 10mm, wide is L
6=4.7mm, second layer medium substrate (2) is identical with the 4th layer of medium substrate (4) structure, positive square metal resonant ring (9) and " worker " shape metal resonant ring (11) that 10 * 10 periodicity cross arrangements are fixedly arranged, form heterostructure, except middle two row, embed a thin bonding jumper (12) between the square metal resonant ring (9) of every row cross arrangement and " worker " shape metal resonant ring (11), respectively embed 8 thin bonding jumpers (12) on second layer medium substrate (2) and the 4th layer of medium substrate (4), thin bonding jumper (12) is of a size of 320mm * 5mm, except middle two adjacent thin bonding jumpers (12) space D
17=57mm, all the other adjacent thin bonding jumper (12) space D
16=26mm, adjacent square metal resonant ring (9) and " worker " shape metal resonant ring (11) space D
18=D
19=31mm, " worker " shape metal resonant ring (11) length of side D
20=20mm, live width D
21=2mm, opening D
22=3mm, brachium L
9=8.5mm, the wide H of arm
9=6mm, fixedly there are helical wire (8) and square metal resonant ring (9) in the 3rd layer of medium substrate (3) front, it arranges identical with arranging of square metal resonant ring (9) with the helical wire (8) of ground floor medium substrate (1), except middle two row, embed a thin bonding jumper (12) between the helical wire of every row cross arrangement (8) and square metal resonant ring (9), the 3rd layer of medium substrate (3) gone up and embedded 8 thin bonding jumpers (12), thin bonding jumper (12) is of a size of 320mm * 5mm, except middle two adjacent thin bonding jumpers (12) space D
24=57mm, all the other adjacent thin bonding jumper (12) space D
23=26mm, the 4th layer of medium substrate (4) reverse side fixedly has metal grounding frame (13), and metal grounding frame (13) is rectangular box-like structure, and its housing edge and the 4th layer of medium substrate (4) edge coincide width D
28The bonding jumper (14) that 5 periodic arrangement are fixedly arranged in=the 40mm, the rectangle frame of metal grounding frame (13), the long L of bonding jumper (14)
10=260mm, wide H
10=40mm, space D
27=15mm=15mm, driving source adopts the Gaussian discrete source.Give latticed metal radiation fin (5) feed by microstrip feed line (6).The resonance frequency of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials is about 4.52GHz, so far finishes the making of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials.
Claims (4)
1. latticed paster antenna of MULTILAYER COMPOSITE heterostructure left-handed materials, it is characterized in that: comprise ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4), compound paster antenna (7), helical wire (8), square metal resonant ring (9), wide bonding jumper (10), " worker " shape metal resonant ring (11), thin bonding jumper (12), metal grounding frame (13), bonding jumper (14), driving source, ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) superposes successively, compound paster antenna (7) is connected to form by latticed metal radiation fin (5) and microstrip feed line (6), compound paster antenna (7) is fixed on the front of ground floor medium substrate (1), helical wire (8) and the cross arrangement of square metal resonant ring (9) periodicity are in the grid of latticed metal radiation fin (5), two wide bonding jumpers (10) are fixed on the edge of ground floor medium substrate (1), second layer medium substrate (2) is identical with the 4th layer of medium substrate (4) structure, all fixedly there is the square metal resonant ring (9) and " worker " shape metal resonant ring (11) of thin bonding jumper (12) and periodically cross arrangement in the front, thin bonding jumper (12) is embedded between square metal resonant ring (9) and " worker " shape metal resonant ring (11), fixedly there is helical wire (8) in the 3rd layer of medium substrate (3) front, square metal resonant ring (9), it arranges identical with arranging of the helical wire (8) of ground floor medium substrate (1) and square metal resonant ring (9), thin bonding jumper (12) is embedded between helical wire (8) and square metal resonant ring (9), the reverse side of the 4th layer of medium substrate (4) fixedly has metal grounding frame (13), the frame of metal grounding frame (13) is embedded in bonding jumper (14), driving source links to each other with microstrip feed line (6) by plain conductor one end, one end links to each other with metal grounding frame (13), and driving source is given latticed metal radiation fin (5) feed by microstrip feed line (6).
2. the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials according to claim 1, it is characterized in that: ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) front all adopts the circuit board lithographic technique to etch compound paster antenna (7), helical wire (8), square metal resonant ring (9), wide bonding jumper (10), " worker " shape metal resonant ring (11), thin bonding jumper (12), the 4th layer of medium substrate (4) reverse side adopt the circuit board lithographic technique to etch metal grounding frame (13) and bonding jumper (14).
3. the latticed paster antenna of a kind of MULTILAYER COMPOSITE left side heterostructure left-handed materials according to claim 1 and 2, it is characterized in that: the latticed paster antenna of a kind of MULTILAYER COMPOSITE heterostructure left-handed materials is of a size of H after four layers of medium substrates stack
l(360 mm) * L
l(360 mm) * D
l(10 mm), ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), the 4th layer of medium substrate (4) are grown and be wide all is 360mm, the relative dielectric constant of ground floor medium substrate (1) and the 3rd layer of medium substrate (3) is 2.0, and thickness is 3mm; The relative dielectric constant of second layer medium substrate (2) and the 4th layer of medium substrate (4) is 10, and thickness is 2mm, and fixedly there is latticed metal radiation fin (5) in ground floor medium substrate (1) front, the outer length of side L of latticed metal radiation fin (5) housing
2=340mm, wide D
2=4mm, housing is apart from ground floor medium substrate (1) edge D
9=10mm, grid live width L
3=L
4=2mm, 10 * 10 helical wire (8) and square metal resonant ring (9) are arranged in the grid intercycle sex-intergrade of latticed metal radiation fin (5), form heterostructure, 2 long H
1Be 360mm, wide L
5Be 6mm, be of a size of H
1(360mm) * L
5Wide bonding jumper (10) (6mm) is fixed on ground floor medium substrate (1) edge, helical wire (8) live width D
10=2.5mm, the adjacent lines interval D
11=2.5mm, minimum diameter R
1=2.5mm, the first external diameter R
2=10mm, the second external diameter R
3=12.5mm; The outer shroud length of side L of square metal resonant ring (9)
7=20mm, interior ring length of side L
8=10mm, the live width D of ring
12=2mm, distance between centers of tracks D
13=3mm, ring opening D
14=D
15=3mm, adjacent helical wire (8) and square metal resonant ring (9) space D
7=D
8=31mm, the length of microstrip feed line (6) is 10mm, wide is L
6=4.7mm, second layer medium substrate (2) is identical with the 4th layer of medium substrate (4) structure, positive square metal resonant ring (9) and " worker " shape metal resonant ring (11) that 10 * 10 periodicity cross arrangements are fixedly arranged, form heterostructure, 8 thin bonding jumpers (12) that are of a size of 320mm * 5mm are embedded between the square metal resonant ring (9) and " worker " shape metal resonant ring (11) of cross arrangement adjacent square metal resonant ring (9) and " worker " shape metal resonant ring (11) space D
18=D
19=31mm, " worker " shape metal resonant ring (11) length of side D
20=20mm, live width D
21=2mm, opening D
22=3mm, brachium L
9=8.5mm, the wide H of arm
9=6mm, fixedly there are helical wire (8) and square metal resonant ring (9) in the 3rd layer of medium substrate (3) front, it arranges identical with arranging of square metal resonant ring (9) with the helical wire (8) of ground floor medium substrate (1), 8 thin bonding jumpers (12) that are of a size of 320mm * 5mm are embedded between the helical wire (8) and square metal resonant ring (9) of cross arrangement, the 4th layer of medium substrate (4) reverse side fixedly has metal grounding frame (13), metal grounding frame (13) is rectangular box-like structure, its housing edge and the 4th layer of medium substrate (4) edge coincide width D
28The bonding jumper (14) that 5 periodic arrangement are fixedly arranged in=the 40mm, the rectangle frame of metal grounding frame (13), the long L of bonding jumper (14)
10=260mm, wide H
10=40mm, space D
27=15mm, driving source adopts the Gaussian discrete source.
4. the latticed paster antenna of a kind of MULTILAYER COMPOSITE left side heterostructure left-handed materials according to claim 3, it is characterized in that: ground floor medium substrate (1) is positive fixedly latticed metal radiation fin (5), and vertically go up mesh spacing and be: the two row mesh spacings that remove the edge are D
3=42mm, other spacings are D
5=29mm, mesh spacing transversely is: the two row mesh spacings that remove the edge are D
4=42mm, other spacings are D
6=29mm, 10 * 10 helical wire (8) and square metal resonant ring (9) are arranged in the grid intercycle sex-intergrade of latticed metal radiation fin (5), form heterostructure, second layer medium substrate (2) is gone up except middle two row, embed a thin bonding jumper (12) between the square metal resonant ring (9) of every row cross arrangement and " worker " shape metal resonant ring (11), second layer medium substrate (2) is gone up and is embedded 8 thin bonding jumpers (12), except middle two adjacent thin bonding jumpers (12) space D
17=57mm, all the other adjacent thin bonding jumper (12) space D
16=26mm, adjacent square metal resonant ring (9) and " worker " shape metal resonant ring (11) space D
18=D
19=31mm, the positive square metal resonant ring (9) of the 4th layer of medium substrate (4), " worker " shape metal resonant ring (11) and carefully the arranging of bonding jumper (12), size are identical with second layer medium substrate (2) with spacing; Fixedly there are helical wire (8) and square metal resonant ring (9) in the 3rd layer of medium substrate (3) front, it arranges identical with arranging of square metal resonant ring (9) with the helical wire (8) of ground floor medium substrate (1), except middle two row, embed a thin bonding jumper (12) between the helical wire of every row cross arrangement (8) and square metal resonant ring (9), the 3rd layer of medium substrate (3) gone up and embedded 8 thin bonding jumpers (12), except middle two adjacent thin bonding jumpers (12) space D
24=57mm, all the other adjacent thin bonding jumper (12) space D
23=26mm, the 4th layer of medium substrate (4) reverse side fixedly has metal grounding frame (13), gives latticed metal radiation fin (5) feed by microstrip feed line (6), and the resonance frequency of the latticed paster antenna of this MULTILAYER COMPOSITE heterostructure left-handed materials is 4.52GHz.
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| CN103414029A (en) * | 2013-08-22 | 2013-11-27 | 江苏大学 | Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect |
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| CN103887609A (en) * | 2014-03-12 | 2014-06-25 | 清华大学 | Plane reflection array antenna |
| CN107359421A (en) * | 2017-07-13 | 2017-11-17 | 厦门大学 | LHM based on goat's horn shape basic cell structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103887609A (en) * | 2014-03-12 | 2014-06-25 | 清华大学 | Plane reflection array antenna |
| CN103887609B (en) * | 2014-03-12 | 2016-03-23 | 清华大学 | Plane reflection array antenna |
| CN107359421A (en) * | 2017-07-13 | 2017-11-17 | 厦门大学 | LHM based on goat's horn shape basic cell structure |
| CN107359421B (en) * | 2017-07-13 | 2020-01-14 | 厦门大学 | Left-handed material based on horn-shaped basic unit structure |
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