CN108631054A - Mix the slot array antenna of feed - Google Patents
Mix the slot array antenna of feed Download PDFInfo
- Publication number
- CN108631054A CN108631054A CN201810272663.7A CN201810272663A CN108631054A CN 108631054 A CN108631054 A CN 108631054A CN 201810272663 A CN201810272663 A CN 201810272663A CN 108631054 A CN108631054 A CN 108631054A
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- antenna
- substrate
- slot
- guide
- feed
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to it is a kind of the invention discloses it is a kind of mixing feed slot array antenna, using the form of substrate integration wave-guide and traditional rectangular metal waveguide mixing feed, wherein radiation front is chip integrated waveguide slot array, work(divides sum-difference network to be waveguide single layer planar structure, work(divides sum-difference network to be located at below radiation front, feed port is not take up Antenna aperture at the antenna back side, which has the advantages that mouth face utilization rate height, high gain, broader bandwidth, section are low etc..
Description
Technical field
The invention belongs to radar antenna fields, are related to a kind of slot array antenna, the antenna using substrate integration wave-guide and
Traditional rectangular metal waveguide mixing feeding technique.
Background technology
Conventional waveguide slot array antenna is widely used in microwave and millimeter wave field, but it is generally multilayer waveguide knot
Structure needs NC high speed milling machine to be machined, then is welded by vacuum welding or diffusion welding (DW) mode, is sized generally to compare
It is high.Substrate integration wave-guide (SIW) technology, which is a kind of can be integrated in dielectric substrate proposed in recent years, has Low emissivity, height
The new waveguiding structure of the characteristics such as power capacity, its propagation characteristic is similar with rectangular metal waveguide, since total is complete
It is made of the plated-through hole array on dielectric substrate, so this structure can accurately be realized using PCB technology, weight
Very light, processing cost is very low, but substrate integration wave-guide (SIW) is difficult to make multilayered structure, feeding network and aerial radiation battle array
Face makes the mouth face utilization rate of substrate integration wave-guide antenna not high in same layer.
Invention content
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of slot array antenna of mixing feed, use
Traditional rectangular metal waveguide and substrate integration wave-guide mixing feed, antenna array are substrate integrated wave guide structure, work(point and poor net
Network is waveguide single layer planar structure, and work(divides sum-difference network to be located at below aerial radiation front so that Antenna aperture utilization rate is very high,
The invention overcomes the disadvantage of traditional rectangular metal waveguide and substrate integration wave-guide respectively so that the advantages of the two is combined.
Technical solution
A kind of slot array antenna of mixing feed, it is characterised in that divide sum-difference network including radiation front and work(, it is described
Radiation front be double-sided copper-clad printed board, include multiple linear arrays, each linear array is using substrate integrated wave guide structure, including medium
Substrate, medium substrate front metal layer, medium substrate metal layer on back and the plated-through hole array through medium substrate, medium
Substrate front side metal layer is equipped with radiating slot, and medium substrate metal layer on back is equipped with couple feed gap, each linear array
It is divided into multistage, is fed by the couple feed slit centers of lower section；The work(divides sum-difference network to be rectangular metal waveguide
Structure is machined on aluminium sheet, is bonded together double-sided copper-clad printed board and aluminium sheet with conducting resinl, and substrate integration wave-guide is under
The metal cavity common media substrate back metal layer of layer；Work(divides the sum-difference network back side poor equipped with antenna and beam port and antenna
Beam port.
Radiating slot and couple feed gap are respectively positioned on substrate integration wave-guide broadside position of center line, and the same substrate is integrated
Radiating slot inclined direction in waveguide is identical, the radiating slot inclined direction phase in linear array on adjacent substrate integration wave-guide
Instead, the adjacent radiation gap spacing in same root linear array is a Medium Wave Guide wavelength, and terminal radiation clearance distance short-circuit end is
1/2 Medium Wave Guide wavelength.
When the radiating slot quantity on substrate integration wave-guide is even number, couple feed gap corresponds in radiating slot
At the heart；When the radiating slot quantity on substrate integration wave-guide is odd number, couple feed gap is corresponded in intermediate radiating slot
With the middle of adjacent radiating slot.
Medium substrate uses Rogers 5880, relative dielectric constant 2.2, thickness 0.787mm, upper lower metal layer thickness
Degree is 0.035mm, and plated-through hole diameter 0.5mm, adjacent through-holes spacing is 1mm.
The work(point sum-difference network is waveguide single layer planar structure, including feed waveguide, two one-to-two power splitters,
90 ° of delay line phases and 3dB directional couplers, one-to-two power splitter is by metallic membrane and two metal columns come regulation power point
Proportioning and voltage standing wave ratio；Four ports of 3dB directional couplers respectively with antenna and beam port, antenna difference beam port,
One one-to-two power splitter and 90 ° of delay line phase connections, 90 ° of delay line phases are connect with another one-to-two power splitter again.
Advantageous effect
A kind of slot array antenna of mixing feed proposed by the present invention has following technology effect compared with prior art
Fruit：
1. Antenna aperture utilization rate is high：Substrate integration wave-guide is difficult to make multilayered structure, feeding network and aerial radiation battle array
Face makes the mouth face utilization rate of substrate integration wave-guide antenna not high in same layer, and the work(point sum-difference network for mixing feed is integrated in
At the back side of aerial radiation front so that entire Antenna aperture is all radiation front.
2. high gain：The mixing feeding network of traditional rectangular metal waveguide and substrate integration wave-guide is more integrated than independent substrate
Feed network for waveguide insertion loss is small, therefore antenna gain also higher.
3. gap spacing bigger：Jie that the slot antenna same root linear array adjacent radiation gap spacing of the prior art is 1/2
Matter waveguide wavelength, adjacent radiation gap of the present invention spacing are a Medium Wave Guide wavelength, and spacing widens gap mutual coupling and reduces, antenna
Directional diagram may be implemented to accurately control, and gap quantity reduction can reduce influence of the gap mismachining tolerance to antenna performance, stitch simultaneously
Gap quantity reduces the workload that can also reduce antenna designer.
4. wider bandwidth：Chip integrated waveguide slot antenna is by the network feeder of lower layer, to draw single line battle array
It is divided into four sections of difference apex drives, has broadened the beamwidth of antenna, this cannot achieve single layer structure.
5. having the characteristics that low section, high precision machining, at low cost：Antenna array is substrate integrated wave guide structure, work(point
Sum-difference network is waveguide single layer planar structure, overcomes respective disadvantage so that the advantages of the two is combined.
Description of the drawings
Fig. 1 is the structural front view of the present invention
Fig. 2 is the structural side view of the substrate integration wave-guide of the present invention
Fig. 3 is the medium substrate front metal layer pattern of the present invention
Fig. 4 is the medium substrate back metal layer pattern of the present invention
Fig. 5 is the structural front view of the aluminium sheet cavity of the present invention
Fig. 6 is the structure rearview of the present invention
Fig. 7 is the aerial voltage standing-wave ratio curve of the present invention
Fig. 8 is the antenna bearingt face directional diagram of the present invention
Specific implementation mode
In conjunction with embodiment, attached drawing, the invention will be further described：
A kind of slot array antenna of mixing feed, radiation front is double-sided copper-clad printed board, using substrate integration wave-guide
Structure, including medium substrate 1, medium substrate front metal layer 2, medium substrate metal layer on back 3 and the gold through medium substrate
Categoryization through-hole array 4；Work(divides sum-difference network to be traditional rectangular metal waveguide structure, is machined on aluminium sheet, will with conducting resinl
Double-sided copper-clad printed board and aluminium sheet are bonded together, the metal cavity common media substrate back metal of substrate integration wave-guide and lower layer
Layer 3；Antenna and beam port 5, antenna difference beam port 6 are waveguide mouth, are located at the antenna back side.
Radiating slot 7 is opened on medium substrate front metal layer 2, and couple feed gap 8 is opened in medium substrate back metal
On layer 3, each linear array is divided into multistage, passes through four 8 apex drives of couple feed gap of lower section, radiating slot 7
In substrate integration wave-guide broadside position of center line, couple feed gap 8 is located at waveguide broadside position of center line, is stitched in couple feed
7 inclined direction of radiating slot of 8 both sides of gap is identical, and 7 inclined direction of radiating slot of the same side is also identical, in same root linear array
7 spacing of adjacent radiation gap is a Medium Wave Guide wavelength, the Medium Wave Guide wave that terminal radiation clearance distance short-circuit end 9 is 1/2
It is long；In order to inhibit cross polarization, adjacent 7 inclined direction of linear array radiating slot opposite.
Work(point sum-difference network is waveguide single layer planar structure, including 10, two one-to-two power splitters 11 of feed waveguide, 12,
90 ° of delay line phases 13 and 3dB directional couplers 14, one-to-two power splitter 11,12 pass through metallic membrane 15 and two metal columns
16 come regulation power distribution ratio and voltage standing wave ratio；Four ports of 3dB directional couplers 14 respectively with antenna and beam port
5, the one-to-two power splitter 11 of antenna difference beam port 6, one and 90 ° of delay line phases 13 connect, 90 ° of delay line phases 13 again with
Another one-to-two power splitter 12 connects.
Embodiment：
The present invention mixing feed slot array antenna be operated in Ka wave bands, mainly include 40 substrate integration wave-guides,
220 radiating slots, 40 couple feed gaps, work(divide sum-difference network, antenna and beam port, antenna difference beam port.
Referring to FIG. 1 and FIG. 2, radiation front is double-sided copper-clad printed board, using substrate integrated wave guide structure, medium substrate 1,
Medium substrate front metal layer 2, medium substrate metal layer on back 3 and the plated-through hole array 4 through medium substrate constitute
Multiple substrate integration wave-guides.Dielectric-slab uses Rogers 5880, relative dielectric constant 2.2, thickness 0.787mm, upper and lower gold
It is 0.035mm to belong to layer thickness, and plated-through hole diameter 0.5mm, adjacent through-holes spacing is 1mm.Antenna aperture utilization rate is up to
82.1%.
With reference to Fig. 3 and Fig. 4, aerial radiation front is made of 10 chip integrated waveguide slot linear arrays, each linear array packet
Four sections are divided into containing 22 radiating slots 7, by four 8 apex drives of couple feed gap of lower section, is reduced per foundation piece
Integrated waveguide institute band radiating slot quantity, to broaden the beamwidth of antenna.Radiating slot 7 is opened on medium substrate front metal layer 2,
Couple feed gap 8 is opened on medium substrate metal layer on back 3, and radiating slot 7 is located at substrate integration wave-guide broadside center line position
It sets, couple feed gap 8 is located at waveguide broadside position of center line, the radiating slot inclined direction phase in couple feed gap both sides
Together, the radiating slot inclined direction of the same side is also identical, and the adjacent radiation gap spacing in same root linear array is a medium wave
Guide wavelength, the Medium Wave Guide wavelength that terminal radiation clearance distance short-circuit end 9 is 1/2；In order to inhibit cross polarization, adjacent linear array spoke
It is opposite to penetrate gap inclined direction.The feed gaps 8 of both sides correspond at the center of radiating slot 7, i.e. the 3rd 7 He of radiating slot
Between 4th radiating slot 7, intermediate feed gaps 8 are between the 3rd radiating slot 7 and the 4th radiating slot 7；
With reference to Fig. 5, work(divides sum-difference network in the metal cavity below medium substrate metal layer on back 3, and substrate integrates wave
Lead the metal cavity common media substrate back metal layer 3 with lower layer.Work(divides sum-difference network to be waveguide single layer planar structure, waveguide
Cavity is integrally machined by NC high speed milling machine in aluminium sheet positive and negative, aluminium plate thickness 4mm.With conducting resinl by double-sided copper-clad medium
Plate is sticked on aluminium sheet, and medium substrate metal layer on back 3 is contacted with aluminium sheet upper surface, ensures positioning accuracy, medium base by tooling
Back metal layer 3 together forms feed work(point sum-difference network with aluminium sheet cavity.Work(point sum-difference network include feed waveguide 10,
Two one-to-two power splitters (11,12), 90 ° of delay line phases 13 and 3dB directional couplers 14, one-to-two power splitter pass through metal
Diaphragm 15 and two metal columns 16 come regulation power distribution ratio and voltage standing wave ratio；Four ports of 3dB directional couplers 14 point
It is not connect with antenna and beam port 5, the one-to-two power splitter 11 of antenna difference beam port 6, one and 90 ° of delay line phases 13,
90 ° of delay line phases 13 are connect with another one-to-two power splitter 12 again.
With reference to Fig. 6, at the antenna back side, entire antenna thickness is only the left sides 4.8mm for antenna and beam port 5, difference beam port 6
The right side, section are significantly lower than conventional waveguide slot array antenna.
With reference to Fig. 7, bandwidth of the antenna standing wave less than 2 is 600MHz.
It is -21.9dB in the minor level of 35GHz azimuth planes and wave beam with reference to Fig. 8, zero depth of azimuth plane difference beam is -
28.3dB。
Claims (5)
1. a kind of slot array antenna of mixing feed, it is characterised in that divide sum-difference network including radiation front and work(, it is described
Radiation front is double-sided copper-clad printed board, including multiple linear arrays, each linear array uses substrate integrated wave guide structure, including medium base
Plate (1), medium substrate front metal layer (2), medium substrate metal layer on back (3) and the plated-through hole battle array through medium substrate
It arranges (4), medium substrate front metal layer (2) is equipped with radiating slot (7), and medium substrate metal layer on back (3) is equipped with coupling
Feed gaps (8), each linear array are divided into multistage, pass through couple feed gap (8) apex drive of lower section；The work(
Point sum-difference network is rectangular metal waveguide structure, is machined on aluminium sheet, with conducting resinl by double-sided copper-clad printed board and aluminium sheet
It is bonded together, the metal cavity common media substrate back metal layer (3) of substrate integration wave-guide and lower layer；Work(point sum-difference network is carried on the back
Face is equipped with antenna and beam port (5) and antenna difference beam port (6).
2. a kind of slot array antenna of mixing feed according to claim 1, it is characterised in that radiating slot (7) and coupling
It closes feed gaps (8) and is respectively positioned on substrate integration wave-guide broadside position of center line, the radiating slot on the same substrate integration wave-guide
(7) inclined direction is identical, and radiating slot (7) inclined direction in linear array on adjacent substrate integration wave-guide is on the contrary, same root line
Adjacent radiation gap (7) spacing in battle array is a Medium Wave Guide wavelength, and terminal radiation clearance distance short-circuit end (9) is 1/2
Medium Wave Guide wavelength.
3. a kind of slot array antenna of mixing feed according to claim 2, it is characterised in that work as substrate integration wave-guide
On radiating slot (7) quantity when being even number, couple feed gap (8) are corresponding at the center of radiating slot (7)；When substrate collection
When at radiating slot (7) quantity in waveguide being odd number, couple feed gap (8) are corresponding in intermediate radiating slot (7) and phase
The middle of adjacent radiating slot (7).
4. a kind of slot array antenna of mixing feed according to claim 1, it is characterised in that medium substrate (1) uses
Rogers 5880, relative dielectric constant 2.2, thickness 0.787mm, upper and lower metal layer thickness is 0.035mm, metallization
Through-hole diameter 0.5mm, adjacent through-holes spacing are 1mm.
5. a kind of slot array antenna of mixing feed according to claim 1, it is characterised in that the work(point and poor
Network is waveguide single layer planar structure, including feed waveguide (10), two one-to-two power splitters (11,12), 90 ° of delay line phases
(13) and 3dB directional couplers (14), one-to-two power splitter (11,12) by metallic membrane (15) and two metal columns (16) come
Regulation power distribution ratio and voltage standing wave ratio；Four ports of 3dB directional couplers (14) respectively with antenna and beam port
(5), antenna difference beam port (6), an one-to-two power splitter (11) and 90 ° of delay line phase (13) connections, 90 ° of phase delays
Line (13) is connect with another one-to-two power splitter (12) again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272663.7A CN108631054A (en) | 2018-03-29 | 2018-03-29 | Mix the slot array antenna of feed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810272663.7A CN108631054A (en) | 2018-03-29 | 2018-03-29 | Mix the slot array antenna of feed |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449589A (en) * | 2018-12-17 | 2019-03-08 | 西安电子工程研究所 | The bidimensional active phased array antenna unit of characteristic is swept with wide bandwidth |
| CN109546360A (en) * | 2018-12-17 | 2019-03-29 | 西安电子工程研究所 | The active phase of Ku wave band based on ridge waveguide gap array sweeps antenna |
| CN110380206A (en) * | 2019-07-25 | 2019-10-25 | 珠海纳睿达科技有限公司 | A kind of broadband SIW slot antenna |
| CN112003029A (en) * | 2020-07-31 | 2020-11-27 | 铜川煜力机械制造有限公司 | Flat plate slot array antenna, radar, wireless communication system and millimeter wave antenna |
| CN113258282A (en) * | 2021-07-08 | 2021-08-13 | 南京隼眼电子科技有限公司 | Slot antenna and wireless signal transmission device |
| CN114050401A (en) * | 2021-10-22 | 2022-02-15 | 四川数字交通科技股份有限公司 | Antenna device and radar |
| CN114142236A (en) * | 2022-01-28 | 2022-03-04 | 南京天朗防务科技有限公司 | Narrow-edge waveguide slot antenna |
| CN114709621A (en) * | 2022-03-07 | 2022-07-05 | 南京航空航天大学 | Single-layer substrate integrated waveguide single-pulse antenna |
| CN114759362A (en) * | 2022-04-29 | 2022-07-15 | 中国电子科技集团公司第十四研究所 | Long-slit array antenna with two-dimensional scanning capability |
| CN116995439A (en) * | 2023-09-28 | 2023-11-03 | 华诺星空技术股份有限公司 | Waveguide slot antenna, phased array antenna and design method |
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| CN103441340A (en) * | 2013-08-14 | 2013-12-11 | 北京航空航天大学 | Half-mode substrate integrated waveguide leaky-wave antenna for variable polarization and frequency scanning |
| CN206116630U (en) * | 2016-10-27 | 2017-04-19 | 成都雷电微力科技有限公司 | Dielectric waveguide crack array antenna of metal hollow waveguide series feed |
| CN106936521A (en) * | 2017-01-12 | 2017-07-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Compact aerial feeds calibration network |
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| US7038622B2 (en) * | 2003-03-03 | 2006-05-02 | Robert Bosch Gmbh | Slot antenna array using LTCC technology |
| CN101916914A (en) * | 2010-08-11 | 2010-12-15 | 东南大学 | Bragg slot array antenna based on half-module substrate integrated waveguide |
| CN103441340A (en) * | 2013-08-14 | 2013-12-11 | 北京航空航天大学 | Half-mode substrate integrated waveguide leaky-wave antenna for variable polarization and frequency scanning |
| CN206116630U (en) * | 2016-10-27 | 2017-04-19 | 成都雷电微力科技有限公司 | Dielectric waveguide crack array antenna of metal hollow waveguide series feed |
| CN106936521A (en) * | 2017-01-12 | 2017-07-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Compact aerial feeds calibration network |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546360A (en) * | 2018-12-17 | 2019-03-29 | 西安电子工程研究所 | The active phase of Ku wave band based on ridge waveguide gap array sweeps antenna |
| CN109449589A (en) * | 2018-12-17 | 2019-03-08 | 西安电子工程研究所 | The bidimensional active phased array antenna unit of characteristic is swept with wide bandwidth |
| CN109449589B (en) * | 2018-12-17 | 2023-12-29 | 西安电子工程研究所 | Two-dimensional active phased array antenna unit with wide bandwidth sweep characteristics |
| CN110380206A (en) * | 2019-07-25 | 2019-10-25 | 珠海纳睿达科技有限公司 | A kind of broadband SIW slot antenna |
| CN112003029B (en) * | 2020-07-31 | 2023-03-10 | 铜川煜力机械制造有限公司 | Flat plate slot array antenna, radar, wireless communication system and millimeter wave antenna |
| CN112003029A (en) * | 2020-07-31 | 2020-11-27 | 铜川煜力机械制造有限公司 | Flat plate slot array antenna, radar, wireless communication system and millimeter wave antenna |
| CN113258282A (en) * | 2021-07-08 | 2021-08-13 | 南京隼眼电子科技有限公司 | Slot antenna and wireless signal transmission device |
| CN114050401A (en) * | 2021-10-22 | 2022-02-15 | 四川数字交通科技股份有限公司 | Antenna device and radar |
| CN114142236A (en) * | 2022-01-28 | 2022-03-04 | 南京天朗防务科技有限公司 | Narrow-edge waveguide slot antenna |
| CN114142236B (en) * | 2022-01-28 | 2022-05-03 | 南京天朗防务科技有限公司 | Narrow-edge waveguide slot antenna |
| CN114709621A (en) * | 2022-03-07 | 2022-07-05 | 南京航空航天大学 | Single-layer substrate integrated waveguide single-pulse antenna |
| CN114709621B (en) * | 2022-03-07 | 2023-05-23 | 南京航空航天大学 | Single-layer substrate integrated waveguide monopulse antenna |
| CN114759362A (en) * | 2022-04-29 | 2022-07-15 | 中国电子科技集团公司第十四研究所 | Long-slit array antenna with two-dimensional scanning capability |
| CN116995439A (en) * | 2023-09-28 | 2023-11-03 | 华诺星空技术股份有限公司 | Waveguide slot antenna, phased array antenna and design method |
| CN116995439B (en) * | 2023-09-28 | 2023-12-15 | 华诺星空技术股份有限公司 | Waveguide slot antenna, phased array antenna and design method |
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Application publication date: 20181009 |