CN107579349A - A kind of construction method of aerial array and Transmission system - Google Patents
A kind of construction method of aerial array and Transmission system Download PDFInfo
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- CN107579349A CN107579349A CN201710918707.4A CN201710918707A CN107579349A CN 107579349 A CN107579349 A CN 107579349A CN 201710918707 A CN201710918707 A CN 201710918707A CN 107579349 A CN107579349 A CN 107579349A
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- aerial array
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 11
- 238000010276 construction Methods 0.000 title claims abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 230000010287 polarization Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000005284 excitation Effects 0.000 claims description 4
- 230000005684 electric field Effects 0.000 abstract description 19
- 238000013461 design Methods 0.000 abstract description 13
- 238000010606 normalization Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 abstract description 3
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- 230000000694 effects Effects 0.000 description 5
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Abstract
The invention discloses a kind of aerial array, including substrate, antenna element, antenna element to be arranged on substrate, and antenna element includes four linear polarization chip units.A kind of construction method of aerial array Transmission system is also disclosed, several antenna elements are arranged on substrate and form aerial array；Continuous rotating feed again, the pumping signal that four linear polarization chip unit amplitudes are equal, phase is progressively increased successively is given respectively, it is circular polarized antenna array submatrix unit to make antenna element；Optimize the position of reception antenna.Using the cheap materials of FR 4 as substrate, cost is relatively low；The normalization electric field width of aerial array is far longer than the size of antenna, completely covers whole antenna；For different application backgrounds, regulation and control design can be carried out near field Electric Field Distribution.
Description
Technical field
The present invention relates to a kind of aerial array and the construction method of Transmission system.Belong to antenna technical field
Background technology
In radar, mobile communication and other various fields, often there is special requirement to antenna radiation pattern.It is single
Antenna element be typically be difficult to meet condition, it is necessary to realize design requirement using multiunit array antenna.In this process
In, most important link is exactly to find most suitable excitation to each antenna element in aerial array according to design requirement, is made
The directional diagram of array antenna realizes the requirement of design, that is, so-called wave beam forming.In order to solve this problem, past
Between decades, for different application conditions and background, many optimization methods are incorporated into the design of shaped aerial by scientific research personnel
It is central.Wherein more classical optimization method have Chebyshev's weighting, Taylor series, thank elder brother promise husband multinomial, Fourier transformation,
And Woodward-Lawson algorithms etc., they are applied to some particular problems and have set rule itself mostly.Previous generation
Record the nineties, in order to tackle more complicated design requirement, global optimization approach starts to be applied to setting for shaped aerial
Among meter, including Gene hepatitis B vaccine (Genetic Algorithm), particle cluster algorithm (Particle Swarm
Optimization), simulated annealing (Simulated Annealing) etc..These optimized algorithms are mostly by nature
The inspiration of evolutionary phenomena in boundary and caused by developing, target is provided to find the solution of optimization.Compared to traditional
Optimization method, global optimization method uses more flexibly, and tends to reach more preferable effect of optimization.But due to
Substantial amounts of mathematical computations are needed in optimization process, when handling the optimization design problem of some large-scale arrays, for computer
Performance requirement will be huge challenge.
However, in some special application environments such as near field detection, short distance identification and logistics management, for day
The shape of line directional diagram does not require, but needs to regulate and control the electric-field intensity of antenna Fresnel region, it is presented not
Same distribution.Obviously, what is be noted above is used for far-field region, and the optimization method of pattern beam figuration can be used for
The electric field Shape design near field, but calculating process will become complicated a lot.In order to solve this problem, people use in recent years
Comparison more than be moment method (Method of Moment).By this method, can solve many electric fields of near-field region and assign
The design of shape, but, due to excessively pursuing the simplification of optimization process, cause the result of optimization inaccurate sometimes.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of aerial array and the structure of Transmission system
Method, by building suitable Transmission system, transmitting antenna array is optimized, obtain suitable antenna excitation distribution.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：A kind of aerial array, it is characterised in that：Bag
Substrate, antenna element are included, antenna element is arranged on substrate, and antenna element includes four linear polarization chip units, four pros
Shape linear polarization chip unit is arranged in quadrant antenna unit.
A kind of foregoing aerial array, it is characterised in that：Antenna element is circular polarized antenna array submatrix unit.
A kind of foregoing aerial array, it is characterised in that：Substrate is made up of FR-4 materials.
A kind of construction method of aerial array Transmission system, it is characterised in that：Comprise the following steps：
Step 1：Several antenna elements are arranged on substrate and form aerial array；
Step 2：Continuous rotating feed, gives that four linear polarization chip unit amplitudes are equal, phase is progressively increased successively respectively
Pumping signal, it is circular polarized antenna array submatrix unit to make antenna element；
Step 3：Optimize the position of reception antenna.
The present invention is advantageous in that：Aerial array is that cost is relatively low using cheap FR-4 materials as substrate；
The normalization electric field width of aerial array is far longer than the size of antenna, so as to completely cover whole antenna；For not
Same application background, can carry out regulation and control design near field Electric Field Distribution.
Brief description of the drawings
Fig. 1 is antenna element schematic diagram；
The structure chart of Fig. 2 antenna element feeding networks；
Fig. 3 is the Expected Results figure of aerial array；
Fig. 4 is individual antenna unit, linear polarization Patch antenna elements, circular polarized antenna unit normalization electric field comparison diagram；
Fig. 5 is the Transmission system that Optimum Theory structure is transmitted according to energy；
Fig. 6 (a) is aerial array front schematic diagram in kind, (b) aerial array back side feeding network material object schematic diagram；
Fig. 7 is the S parameter comparison diagram of antenna emulation and actual measurement；
Fig. 8 is the XOZ faces directional diagram comparative result figure of antenna emulation and actual measurement；
Fig. 9 is the result figure of the normalization electric field of antenna emulation and actual measurement.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
Reference picture 1, Fig. 2, shown, shade is the color of copper sheet, a kind of aerial array of the present invention, including substrate, day in Fig. 1
Line unit, antenna element are arranged on substrate, and antenna element includes four linear polarization chip units, four square line polarization patches
Blade unit is arranged in quadrant antenna unit, and antenna element is circular polarized antenna array submatrix unit, and substrate is FR-4 material systems
Into.
Reference picture 4, for antenna element compared to single linear polarization and circular polarisation unit, 3dB electric field width is wider, for
The figuration of electric field has good effect.Antenna element of the circular polarized antenna array submatrix as array, it is by four linear polarizations
Chip unit forms, and by way of continuous rotating feed, gives that four chip unit amplitudes are equal, and phase is progressively increased successively respectively
Pumping signal, make its produce circular polarisation effect.
As figure 5 illustrates, shade is the color of antenna in Fig. 5, a kind of construction method of aerial array Transmission system, including as follows
Step：
Step 1：Several antenna elements are arranged on substrate and form aerial array；
Step 2：Continuous rotating feed, gives that four linear polarization chip unit amplitudes are equal, phase is progressively increased successively respectively
Pumping signal, it is circular polarized antenna array submatrix unit to make antenna element；
Step 3：Optimize the position of reception antenna, to obtain suitable amplitude and phase.The distribution feelings of electric field are looked into by seeing
Condition, the weaker place of electric field is placed on, adjusts their interval, transmitting Optimum Theory by energy obtains the width of transmitting antenna
Value and phase.
By taking intelligent bookshelf system as an example, in order to can by antenna read bookshelf on all books number, it is necessary to
Uniform distribution is presented in electric field, and the individual antenna unit of design is made up of four linear polarization square patch units, by continuous
The mode of rotating feed, it is equal to give four chip unit amplitudes respectively, the pumping signal that phase is progressively increased successively, its is produced circle
Polarization effect.A Transmission system model of Optimum Theory design is transmitted according to energy, in order that being looked for each unit in array
To most suitable excitation (amplitude and phase), according to simulation model, antenna material object is made, Fig. 6 (a) is the positive reality of aerial array
Thing schematic diagram, shade is the color of antenna copper sheet in Fig. 6 (a), and size of substrate is 750mm × 190mm, thickness 3mm；Fig. 6 (b)
For back side feeding network material object schematic diagram, Fig. 6 (b) shades are the color of feeding network copper sheet, and size is 750mm × 190mm, thick
Spend for 1mm.Two parts are connected as an entirety by a public ground structure.After material object manufacture is completed, it is measured,
Wherein Fig. 7 and Fig. 8 is respectively the comparative result figure of the actual measurement and emulation of antenna S parameter and directional diagram.
Reference picture 9, antenna normalization electric field in kind is measured, and contrasted with simulation result.From figure
In it can be seen that its 3dB normalization electric field width is 800mm, or even 2dB electric field width has all reached 764mm, is far longer than
The size 750mm of antenna, whole antenna can be covered, the expected effect in accompanying drawing 3 can be met completely.In Fig. 3, shade is
The color of antenna.
In order to further verify the practical function of antenna, access in RFID test systems and carry out as reading and writing device antenna
Test.Test RFID label tag is placed along the spine direction in books, a label is posted in every book.Simultaneously in 40 books
Label antenna is all placed, all of which is arranged in front of antenna, neat is horizontal positioned, and books total length can cover entirely
Antenna.By test, the quantity of 40 books can be clearly read from RFID computers control terminal, and ought add wherein again
One new book or when taking an original book away, it can be seen that the obvious numeral change of control terminal, so as to prove the present invention's
Effect.
The present invention has the following advantages：
First：Aerial array is that cost is relatively low using cheap FR-4 materials as substrate；
Second：The normalization electric field width of aerial array is far longer than the size of antenna, whole so as to completely cover
Individual antenna；
3rd：For different application backgrounds, regulation and control design can be carried out near field Electric Field Distribution.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all fall within protection scope of the present invention.
Claims (4)
- A kind of 1. aerial array, it is characterised in that：Including substrate, antenna element, antenna element is arranged on substrate, antenna element Including four linear polarization chip units, four square line polarized patch units are arranged in quadrant antenna unit.
- A kind of 2. aerial array according to claim 1, it is characterised in that：Antenna element is circular polarized antenna array submatrix Unit.
- A kind of 3. aerial array according to claim 1, it is characterised in that：Substrate is made up of FR-4 materials.
- A kind of 4. construction method of aerial array Transmission system as claimed in claim 1, it is characterised in that：Including following step Suddenly：Step 1：Several antenna elements are arranged on substrate and form aerial array；Step 2：Continuous rotating feed, the excitation that four linear polarization chip unit amplitudes are equal, phase is progressively increased successively is given respectively Signal, it is circular polarized antenna array submatrix unit to make antenna element；Step 3：Optimize the position of reception antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710918707.4A CN107579349A (en) | 2017-09-30 | 2017-09-30 | A kind of construction method of aerial array and Transmission system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710918707.4A CN107579349A (en) | 2017-09-30 | 2017-09-30 | A kind of construction method of aerial array and Transmission system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193171A (en) * | 2018-09-19 | 2019-01-11 | 西安电子科技大学 | A kind of low RCS microstrip antenna based on Van Atta array polarization conversion |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238079Y (en) * | 2008-05-23 | 2009-05-13 | 华南理工大学 | Radio frequency recognition circular polarization array antenna based on continuous rotating feed technology |
| EP2270924A1 (en) * | 2009-07-02 | 2011-01-05 | Research In Motion Limited | Compact single feed dual-polarized dual-frequency band microstrip antenna array |
| CN106096160A (en) * | 2016-06-17 | 2016-11-09 | 中国电子科技集团公司第十研究所 | The axle of large-angle scanning rotational circle polarization micro-strip array antenna compares optimization method |
| CN106997986A (en) * | 2017-05-15 | 2017-08-01 | 南京信息工程大学 | A kind of circular polarized antenna array of X-band |
-
2017
- 2017-09-30 CN CN201710918707.4A patent/CN107579349A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238079Y (en) * | 2008-05-23 | 2009-05-13 | 华南理工大学 | Radio frequency recognition circular polarization array antenna based on continuous rotating feed technology |
| EP2270924A1 (en) * | 2009-07-02 | 2011-01-05 | Research In Motion Limited | Compact single feed dual-polarized dual-frequency band microstrip antenna array |
| CN106096160A (en) * | 2016-06-17 | 2016-11-09 | 中国电子科技集团公司第十研究所 | The axle of large-angle scanning rotational circle polarization micro-strip array antenna compares optimization method |
| CN106997986A (en) * | 2017-05-15 | 2017-08-01 | 南京信息工程大学 | A kind of circular polarized antenna array of X-band |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193171A (en) * | 2018-09-19 | 2019-01-11 | 西安电子科技大学 | A kind of low RCS microstrip antenna based on Van Atta array polarization conversion |
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Application publication date: 20180112 |