CN206893797U - A kind of array antenna - Google Patents
A kind of array antenna Download PDFInfo
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- CN206893797U CN206893797U CN201720695994.2U CN201720695994U CN206893797U CN 206893797 U CN206893797 U CN 206893797U CN 201720695994 U CN201720695994 U CN 201720695994U CN 206893797 U CN206893797 U CN 206893797U
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Abstract
The utility model discloses a kind of array antenna, include two parts of radiating element and feeding network, it is characterized in that, the radiating element and feeding network form a layer structure, the layer structure includes two layer medium substrate, three-layer metal layer and a paste medium layer, from top to bottom respectively metal layer at top, first layer dielectric substrate, paste medium layer, intermediate metal layer, second layer dielectric substrate and bottom metal layers；Metal layer at top is used to form the radiating element, and the feeding network includes being used for the substrate integration wave-guide for encouraging each radiation submatrix.Compared with prior art, the utility model can realize the compact of array antenna structure, simultaneously, constant amplitude can realize that the radiation direction of whole antenna points to normal direction all the time with the feed form of phase, wave beam is avoided to shake the head, in addition, feeding network uses substrate integrated wave guide structure, it can reduce and be lost caused by feeding network, whole antenna possesses wider bandwidth.
Description
Technical field
It the utility model is related to electronic applications, more particularly to a kind of array antenna.
Background technology
With the progress of society and the development of technology, for realizing that electronic system high-performance, the demand of miniaturization are increasingly compeled
Cut.Array antenna has a wide range of applications inside the electronic system of the numerous areas such as communication, navigation, radar, detection, Neng Goushi
Existing high-performance, the array antenna structure of miniaturization can necessarily bring good economic benefit and social benefit.
Current social, automobile become more popular, at the same time, the road traffic accident to take place frequently force traffic safety into
For the topic of an extensive concern, the trailer-mounted radar as automobile active safety DAS (Driver Assistant System) critical component is into science
Boundary and the focus of industrial quarters research.For antenna as the key period in radio-based electronic devices, its performance will determine this whole nothing
The performance of line electronic equipment.Array antenna is widely used in radar system, the antenna scheme that radar system uses
Mass action and overall performance index to radar have important influence,
The following problem also be present in before published related vehicle radar antenna：
1st, most of antenna uses the form from one end feed, the problem of wave beam being caused to shake the head；
2nd, feeding network occupies certain circuit area, and whole antenna structure is not compact enough；
3rd, the bandwidth of antenna is narrow；
4th, feeding network loss is big.
Therefore, being currently used for the array antenna of Vehicular radar system, problem above to be also present urgently to be resolved hurrily.
The content of the invention
Technical problem to be solved in the utility model is to be directed to above-mentioned the deficiencies in the prior art, and it is tight to provide a kind of structure
Gather, small volume, be avoided that wave beam is shaken the head and possesses the array antenna of wider bandwidth.
To reach above-mentioned purpose, what technical solutions of the utility model were realized in：
A kind of array antenna, include two parts of radiating element and feeding network, it is characterised in that the radiating element and
Feeding network forms a layer structure, and the layer structure includes two layer medium substrate, three-layer metal layer and a paste medium layer,
It is respectively metal layer at top, first layer dielectric substrate, paste medium layer, intermediate metal layer, second layer dielectric substrate from top to bottom
And bottom metal layers；Metal layer at top is used to form the radiating element, and the metal layer at top includes radiation submatrix and position
Microstrip power divider in each radiation submatrix center, the radiation submatrix are made up of the metal patch arranged in array；Middle gold
Category layer, second layer dielectric substrate and bottom metal layers are used to form the feeding network, and the feeding network includes being used to encourage often
The substrate integration wave-guide of individual radiation submatrix.
The metal patch is square, using 2 × 2NArray arrangement form, often row upper 2NIndividual metal patch it is diagonal
Line is on a horizontal linear, and the diagonal of 2 metal patches is in a vertical straight line in each column；The microstrip power divider is
By two parallel narrower microstrip lines（Width is less than 0.05 times of aerial operation wavelength of electromagnetic wave）With by two parallel micro-strips
" work " shape structure that the center microstrip line that line connects at middle part is formed, an angle of four square-shaped metal pasters each with
The a port of I-shaped microstrip power divider is connected, and such four square-shaped metal pasters form a radiation submatrix, whole
Individual radiating element shares 2N-1Individual radiation submatrix.
A transverse joint for being used to encourage the radiation submatrix, the center of the transverse joint are offered on each substrate integration wave-guide
With the center superposition of the microstrip power divider at radiation submatrix center, transverse joint is vertical with center microstrip line, and position is encouraged by slot-coupled
In the microstrip power divider of metal layer at top, the same phase feed to top metal paster is realized；
Substrate integration wave-guide broadside transverse joint is by the port input signal on the side vertical with transverse joint, by just putting and inverting
The power distributing network that interlaced "T"-shaped substrate integration wave-guide is formed is to each substrate integration wave-guide broadside transverse joint offer etc.
The input of the phases such as width.
N value takes 2, i.e. array scale is 2 × 4, forms two radiation submatrixs, is located at second layer dielectric substrate using two
On substrate integration wave-guide broadside transverse joint two submatrixs are fed, two adjacent substrate integration wave-guide broadside transverse joints with from
The output port for the "T"-shaped power splitter that between which space is gone through is connected.
N value takes 3, i.e. array scale is 2 × 8, forms four radiation submatrixs, is located at second layer dielectric substrate using four
On substrate integration wave-guide broadside transverse joint four submatrixs are fed, the adjacent substrate integration wave-guide broadside transverse joint of each two with
The output port of the first "T"-shaped power splitter gone through between which space is connected, the input port of the first "T"-shaped power splitter
It is respectively connected with two output ends of a second "T"-shaped power splitter gone through from the space between middle adjacent two submatrix,
First "T"-shaped power splitter and the second "T"-shaped power splitter it is in opposite direction.
N value takes 4, i.e. array scale is 2 × 16, forms eight radiation submatrixs, is located at second layer medium base using eight
Substrate integration wave-guide broadside transverse joint on piece is fed to eight submatrixs, the adjacent substrate integration wave-guide broadside transverse joint of each two
It is connected with the output port of the first "T"-shaped power splitter gone through between which space, the input of the first "T"-shaped power splitter
Two output ends of mouth and a second "T"-shaped power splitter gone through from the space between middle adjacent two submatrix distinguish phase
Even, the input port of the second "T"-shaped power splitter and one go through the 3rd "T"-shaped from the space between middle adjacent two submatrix
Two output ends of power splitter are respectively connected with, in opposite direction, second " T " of the first "T"-shaped power splitter and the second "T"-shaped power splitter
Shape power splitter it is in opposite direction in opposite direction with the 3rd "T"-shaped power splitter.
The thickness of used first layer dielectric substrate is 0.127mm, and the thickness of second layer dielectric substrate is 0.254mm.
Layered structure is realized using multilayer printed circuit board technique.
A kind of array antenna, comprising two parts of radiating element and feeding network, radiating element uses plane patch form,
Feeding network uses the form of substrate integration wave-guide；General structure using multilayer printed circuit board technique realize, radiating element and
Supply network road is not realized on same layer dielectric substrate.Array antenna structure, each submatrix bottom are opened using a top broadside
The substrate integration wave-guide excitation of transverse joint, the center superposition of the center of transverse joint and the microstrip power divider at submatrix center, and transverse joint with it is micro-
Narrower microstrip line with power splitter center is vertical, the microstrip power divider by slot-coupled excitation positioned at metal layer at top, realizes
The same phase of top metal paster is fed, total is by intermediate metal layer, second layer dielectric substrate, bottom metal layers and wears
The plated-through hole for crossing this three-decker is formed；Substrate integration wave-guide broadside transverse joint is defeated by the port on the side vertical with transverse joint
Enter signal, by just putting and inverting the power distributing network of interlaced "T"-shaped substrate integration wave-guide formation to each substrate
Integrated waveguide broadside transverse joint provides the input of the phases such as constant amplitude.
Compared with prior art, the utility model array antenna structure, by radiating element using patch form and with feed
Network formed layer structure, it is possible to achieve array antenna structure it is compact, meanwhile, constant amplitude can be realized whole with the feed form of phase
The radiation direction of individual antenna points to normal direction all the time, avoids wave beam from shaking the head, in addition, feeding network uses substrate integrated wave guide structure,
It can reduce and be lost caused by feeding network, whole antenna possesses wider bandwidth.
Brief description of the drawings
Fig. 1 array antenna sandwich construction schematic diagrames provided by the utility model；
Fig. 2 array antenna metal layer at top structural representations provided by the utility model；
Fig. 3 array antenna intermediate metal layer structural representations provided by the utility model；
Fig. 4 array antenna bottom metal layers structural representations provided by the utility model；
The perspective structure schematic diagram that array antenna is seen from overhead view during Fig. 5 N provided by the utility model=3；
Fig. 6 example antennas | S11 | simulation result；
Fig. 7 example antenna radiation pattern simulation results；
The perspective structure schematic diagram that array antenna is seen from overhead view when Fig. 8 is N=2；
The perspective structure schematic diagram that array antenna is seen from overhead view when Fig. 9 is N=4.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.It is every according to the utility model proposes technological thought, any change done on the basis of technical scheme, belong to
The scope of the utility model protection.
It refer to Fig. 1-Fig. 5, a kind of array antenna of the utility model, comprising two parts of radiating element and feeding network,
Radiating element uses plane patch form, and feeding network uses the form of substrate integration wave-guide；General structure is using multilayered printed
Circuit-board processes realize that radiating element and supply network road are not realized on same layer dielectric substrate, are included two layers in general structure
Dielectric substrate, three-layer metal layer, a paste medium layer, from top to bottom respectively metal layer at top 1, first layer dielectric substrate 4,
Paste medium layer 5, intermediate metal layer 2, second layer dielectric substrate 6, bottom metal layers 3；Radiating element is in metal layer at top 1,
Using the form of square-shaped metal paster 8, using 2 × 2NArray arrangement form, i.e. two row altogether, every row 2NIndividual unit；Each
Square-shaped metal paster 8 is after its central axis rotates 45 degree, and square-shaped metal paster is by a pair of same spacing 1 in two rows
It should arrange；Two adjacent square-shaped metal pasters corresponding to the first row each two adjacent square-shaped metal paster and the second row
Form a square radiation submatrix containing four radiating elements, when N takes 3, altogether formed 4 radiation submatrixs 10,11,
12nd, 13, it is each to radiate in submatrix, four square-shaped metal pasters are pasted using a microstrip power divider 9 positioned at submatrix center
Piece connects, and microstrip power divider is positive " work " the shape structure placed of one be made up of narrower microstrip line, four squares
A port of one angle 14 of metal patch each with I-shaped microstrip power divider is connected, such four square-shaped metals
Paster forms a submatrix, and whole aerial array shares 2N-1Individual submatrix is formed；Opened using a top broadside each submatrix bottom
The substrate integration wave-guide 16,17,18,19 of transverse joint 20 encourages, the center of broadside transverse joint 20 and the microstrip power divider 9 at submatrix center
Center superposition, and broadside transverse joint is vertical with the narrower microstrip line 15 at microstrip power divider center, by slot-coupled excitation positioned at top
The microstrip power divider 9 of portion's metal level, the same phase feed to top metal paster is realized, total is by intermediate metal layer 2, second
Layer dielectric substrate 6, bottom metal layers 3 and the plated-through hole 7 through this three-decker are formed；Substrate integration wave-guide by with
Port input signal on the vertical side of broadside transverse joint 20, by just putting and inverting interlaced "T"-shaped substrate integration wave-guide
The power distributing network 21,22,23 of formation provides the input of the phases such as constant amplitude to each substrate integration wave-guide broadside transverse joint；When N's
Value takes 3, i.e. array scale is 2 × 8, four submatrixs 10,11,12,13 is formed, using four on second layer dielectric substrate
Substrate integration wave-guide broadside transverse joint 16,17,18,19 is fed to four submatrixs respectively, and the adjacent substrate of each two integrates ripple
The output port for leading "T"-shaped power splitter 22,23 of the broadside transverse joint structure with being gone through between which space is connected, input port
It is respectively connected with two output ends of a "T"-shaped power splitter 21 gone through from the middle space connected between a submatrix；Adopted
The thickness of first layer dielectric substrate 4 is 0.127mm, and the thickness of second layer dielectric substrate 6 is 0.254mm；Accompanying drawing 5 gives
The perspective view shape seen from the whole antenna structure of overhead view；
In order to verify the authenticity of array antenna provided by the utility model and reliability, spy has made one in W-waveband
Example is verified.Related experiment result can verify the utility model as shown in Figure 6, Figure 7, from Fig. 6, Fig. 7 experimental result
The correctness and validity of the dependency structure of proposition.
Fig. 8 is the structure chart of array antenna when N values take 2, i.e. array scale is 2 × 4, forms two radiation submatrixs, uses
Two substrate integration wave-guide broadside transverse joints on second layer dielectric substrate are fed to two submatrixs, two adjacent bases
The output port of "T"-shaped power splitter of the piece integrated waveguide broadside transverse joint with being gone through between which space is connected.
Fig. 9 is that N values take 4, i.e. array scale is 2 × 16, forms eight radiation submatrixs, is located at second layer medium using eight
Substrate integration wave-guide broadside transverse joint on substrate is fed to eight submatrixs, and the adjacent substrate integration wave-guide broadside of each two is horizontal
Seam is connected with the output port of the first "T"-shaped power splitter gone through between which space, the input of the first "T"-shaped power splitter
Port and two output ends of a second "T"-shaped power splitter gone through from the space between middle adjacent two submatrix distinguish phase
Even, the input port of the second "T"-shaped power splitter and one go through the 3rd "T"-shaped from the space between middle adjacent two submatrix
Two output ends of power splitter are respectively connected with, in opposite direction, second " T " of the first "T"-shaped power splitter and the second "T"-shaped power splitter
Shape power splitter it is in opposite direction in opposite direction with the 3rd "T"-shaped power splitter.
Above example is only to illustrate technological thought of the present utility model, it is impossible to limits protection model of the present utility model with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical scheme, each fall within this reality
Within the scope of novel protected.
Claims (8)
1. a kind of array antenna, include two parts of radiating element and feeding network, it is characterised in that the radiating element and feedback
Electric network forms a layer structure, and the layer structure includes two layer medium substrate, three-layer metal layer and a paste medium layer,
It is respectively metal layer at top, first layer dielectric substrate, paste medium layer, intermediate metal layer, second layer dielectric substrate from top to bottom
And bottom metal layers；Metal layer at top is used to form the radiating element, and the metal layer at top includes radiation submatrix and position
Microstrip power divider in each radiation submatrix center, the radiation submatrix are made up of the metal patch arranged in array；Middle gold
Category layer, second layer dielectric substrate and bottom metal layers are used to form the feeding network, and the feeding network includes being used to encourage often
The substrate integration wave-guide of individual radiation submatrix.
2. array antenna according to claim 1, it is characterised in that：The metal patch is square patch, using 2 ×
2NArray arrangement form, often row upper 2NThe diagonal of individual metal patch is on a horizontal linear, 2 metal patches in each column
Diagonal in a vertical straight line；The microstrip power divider be by two parallel narrower microstrip lines with by two parallel micro-strips
" work " shape structure that the center microstrip line that line connects at middle part is formed, an angle of four square-shaped metal pasters each with
The a port of I-shaped microstrip power divider is connected, and such four square-shaped metal pasters form a radiation submatrix, whole
Individual radiating element shares 2N-1Individual radiation submatrix.
3. array antenna as claimed in claim 2, it is characterised in that one is offered on each substrate integration wave-guide and is used for
Encourage the transverse joint of the radiation submatrix, the center of the transverse joint and the center superposition of the microstrip power divider at radiation submatrix center, transverse joint
It is vertical with center microstrip line, the microstrip power divider by slot-coupled excitation positioned at metal layer at top, realize and top metal is pasted
The same phase feed of piece；Substrate integration wave-guide broadside transverse joint is by the port input signal on the side vertical with transverse joint, by just putting
With invert power distributing network that interlaced "T"-shaped substrate integration wave-guide formed to each substrate integration wave-guide broadside transverse joint
The input of the phases such as constant amplitude is provided.
4. array antenna as claimed in claim 3, it is characterised in that N value takes 2, i.e. array scale is 2 × 4, forms two
Submatrix is radiated, two submatrixs are presented using two substrate integration wave-guide broadside transverse joints on second layer dielectric substrate
The output end of electricity, two adjacent substrate integration wave-guide broadside transverse joints and the "T"-shaped power splitter gone through between which space
Mouth is connected.
5. array antenna as claimed in claim 3, it is characterised in that N value takes 3, i.e. array scale is 2 × 8, forms four
Submatrix is radiated, four submatrixs are presented using four substrate integration wave-guide broadside transverse joints on second layer dielectric substrate
Electricity, the adjacent substrate integration wave-guide broadside transverse joint of each two and the first "T"-shaped power splitter for being gone through between which space
Output port is connected, and the input port of the first "T"-shaped power splitter and one go through from the space between middle adjacent two submatrix
Two output ends of the second "T"-shaped power splitter be respectively connected with, the direction of the first "T"-shaped power splitter and the second "T"-shaped power splitter
Conversely.
6. array antenna as claimed in claim 3, it is characterised in that N value takes 4, i.e. array scale is 2 × 16, forms eight
Individual radiation submatrix, eight submatrixs are presented using eight substrate integration wave-guide broadside transverse joints on second layer dielectric substrate
Electricity, the adjacent substrate integration wave-guide broadside transverse joint of each two and the first "T"-shaped power splitter for being gone through between which space
Output port is connected, and the input port of the first "T"-shaped power splitter and one go through from the space between middle adjacent two submatrix
Two output ends of the second "T"-shaped power splitter be respectively connected with, the input port of the second "T"-shaped power splitter and one are from interphase
Two output ends of the 3rd "T"-shaped power splitter that the space between adjacent two submatrixs is gone through are respectively connected with, the first "T"-shaped power splitter
With in opposite direction, the in opposite direction and direction of the 3rd "T"-shaped power splitter of the second "T"-shaped power splitter of the second "T"-shaped power splitter
Conversely.
7. array antenna as claimed in any one of claims 1 to 6, it is characterised in that used first layer dielectric substrate
Thickness is 0.127mm, and the thickness of second layer dielectric substrate is 0.254mm.
8. array antenna as claimed in any one of claims 1 to 6, it is characterised in that layered structure is using multilayered printed
Circuit-board processes are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720695994.2U CN206893797U (en) | 2017-06-15 | 2017-06-15 | A kind of array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720695994.2U CN206893797U (en) | 2017-06-15 | 2017-06-15 | A kind of array antenna |
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| Publication Number | Publication Date |
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| CN206893797U true CN206893797U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720695994.2U Withdrawn - After Issue CN206893797U (en) | 2017-06-15 | 2017-06-15 | A kind of array antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196049A (en) * | 2017-06-15 | 2017-09-22 | 东南大学 | A kind of array antenna |
| CN109103605A (en) * | 2018-08-07 | 2018-12-28 | 北京凌波微步信息技术有限公司 | A kind of array antenna using inversion microstrip gap waveguide feed |
| CN109994820A (en) * | 2019-03-28 | 2019-07-09 | 中天宽带技术有限公司 | A kind of extensive mimo antenna |
| CN111684658A (en) * | 2018-02-01 | 2020-09-18 | 维斯普瑞公司 | Configurable phase antenna array |
| CN112103608A (en) * | 2020-09-29 | 2020-12-18 | 中国航空工业集团公司雷华电子技术研究所 | Power divider and power combiner with high isolation |
| CN114709621A (en) * | 2022-03-07 | 2022-07-05 | 南京航空航天大学 | Single-layer substrate integrated waveguide single-pulse antenna |
-
2017
- 2017-06-15 CN CN201720695994.2U patent/CN206893797U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196049A (en) * | 2017-06-15 | 2017-09-22 | 东南大学 | A kind of array antenna |
| CN107196049B (en) * | 2017-06-15 | 2023-03-17 | 东南大学 | Array antenna |
| CN111684658A (en) * | 2018-02-01 | 2020-09-18 | 维斯普瑞公司 | Configurable phase antenna array |
| CN111684658B (en) * | 2018-02-01 | 2021-11-23 | 维斯普瑞公司 | Configurable phase antenna array |
| CN109103605A (en) * | 2018-08-07 | 2018-12-28 | 北京凌波微步信息技术有限公司 | A kind of array antenna using inversion microstrip gap waveguide feed |
| CN109994820A (en) * | 2019-03-28 | 2019-07-09 | 中天宽带技术有限公司 | A kind of extensive mimo antenna |
| CN109994820B (en) * | 2019-03-28 | 2024-01-30 | 中天宽带技术有限公司 | Large-scale MIMO antenna |
| CN112103608A (en) * | 2020-09-29 | 2020-12-18 | 中国航空工业集团公司雷华电子技术研究所 | Power divider and power combiner with high isolation |
| CN112103608B (en) * | 2020-09-29 | 2022-02-22 | 中国航空工业集团公司雷华电子技术研究所 | Power divider and power combiner with high isolation |
| CN114709621A (en) * | 2022-03-07 | 2022-07-05 | 南京航空航天大学 | Single-layer substrate integrated waveguide single-pulse antenna |
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