CN110429376A - Antenna element, aerial array and antenna - Google Patents
Antenna element, aerial array and antenna Download PDFInfo
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- CN110429376A CN110429376A CN201910704563.1A CN201910704563A CN110429376A CN 110429376 A CN110429376 A CN 110429376A CN 201910704563 A CN201910704563 A CN 201910704563A CN 110429376 A CN110429376 A CN 110429376A
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- lattice unit
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- short side
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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
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- 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
-
- 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
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
This application involves a kind of antenna element, aerial array and antennas.The antenna element includes: metal ground layer, medium substrate and antenna lattice unit；The metal ground layer and the antenna lattice unit are separately positioned on two opposite surfaces of the medium substrate；The profile of the antenna lattice unit is the shape of parallelogram, and the antenna lattice unit is using 45 degree of polarization mode settings；The long side and short side of the antenna lattice unit are two adjacent sides；Radiating element is provided at least one short side of the antenna lattice unit.Interference can be reduced in meeting using the antenna, promote the detection performance of radar.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of antenna element, aerial array and antenna.
Background technique
With the development of communication technology, people require the ability to communicate of the communication apparatus such as radar higher and higher.And antenna
As the tool for emitting and receiving electromagnetic wave, performance has vital effect to the ability to communicate of communication apparatus.
By taking millimeter wave vehicle anti-collision radar as an example, conventional grid aerial array or rectangle crossfeed array antenna are usually used
To realize the transmitting-receiving of signal.However traditional grid antenna is this grid antenna by the way of rectangular patch series feed
Under complex environment, such as when meeting, receiving and transmitting signal can generate serious interference to other side simultaneously between two vehicles, lead to thunder
The detectivity decline reached.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide a kind of antenna element that can reduce interference, aerial array
And antenna.
In a first aspect, the embodiment of the present application provides a kind of antenna element, comprising: metal ground layer, medium substrate and antenna lattice
Unit；The metal ground layer and the antenna lattice unit are separately positioned on two opposite surfaces of the medium substrate；
The profile of the antenna lattice unit is the shape of parallelogram, and the antenna lattice unit uses 45 degree of polarization sides
Formula setting；The long side and short side of the antenna lattice unit are two adjacent sides；
Radiating element is provided at least one short side of the antenna lattice unit.
It is single that the radiation is respectively arranged on two opposite short sides of the antenna lattice unit in one of the embodiments,
Member.
The radiating element is circle in one of the embodiments,.
It is opened up on the radiating element in one of the embodiments, there are four gap, four gaps are symmetrical
Extend in the two sides of the short side of the antenna lattice unit, and along the short side direction of the antenna lattice unit.
Difference between the length of the short side of the antenna lattice unit and the half of medium wavelength in one of the embodiments,
Value is less than 1/5th of the medium wavelength；Difference between the length of the long side of the antenna lattice unit and the medium wavelength
Value is less than 1/5th of the medium wavelength.
It in one of the embodiments, further include coaxial feeder, the axis of the coaxial feeder and the antenna lattice unit
Connection, and the intermediate region of the antenna lattice unit is set；The shielded layer of the coaxial feeder is connect with the metal ground layer.
Second aspect, the embodiment of the present application provide a kind of aerial array, and the aerial array includes first row antenna element,
The first row antenna element includes mutiple antennas unit, any one of the structure of the antenna element and claim 1-6
The antenna unit structure is identical, and the extending direction of long side of multiple antenna elements along the antenna element is successively set
It sets.
The aerial array further includes secondary series antenna element in one of the embodiments, the second array antenna list
Member includes multiple antenna elements, and the extending direction of long side of multiple antenna elements along the antenna element is successively set
It sets；
The secondary series antenna element and the first row antenna element direction vertical in the long side of the antenna element
It sets gradually, and the secondary series antenna element and the first row antenna element are in approximately the same plane.
Radiating element in the first row antenna element in one of the embodiments, in the length of the antenna element
Be staggered on the extending direction on side with the radiating element in the secondary series antenna element length setting of half of medium wavelength.
The quantity of the antenna element in the first row antenna element is less than the second array antenna in one of the embodiments,
The quantity of antenna element in unit.
D is the diameter of the radiating element in one of the embodiments, and D is more than or equal to 0.3 times of medium wavelength, is less than
Equal to 0.54 times medium wavelength；L1 is the spacing of adjacent radiation unit, and L1 is more than or equal to 0.9 times of medium wavelength, is less than or equal to 1.1
Times medium wavelength；W1 is the width of the long side of the antenna lattice unit, and W1 is more than or equal to 0.05 times of medium wavelength, is less than or equal to
0.1 times of medium wavelength；L2 is the length of the short side of the antenna element, is more than or equal to 0.5 times of medium wavelength, is less than or equal to 0.7
Times medium wavelength, W2 are the width of the short side of the antenna element, and W2 is more than or equal to 0.05 times of medium wavelength, are less than or equal to 0.1
Times medium wavelength, L3 are the half of L1.
The third aspect, the embodiment of the present application provide a kind of antenna, and the antenna includes metal ground layer, medium substrate and grid
Lattice radiating curtain, the metal back layer and the grid radiating curtain are respectively arranged at two opposite tables of the medium substrate
Face, the grid radiating curtain include multiple grids, and the multiple grid extend side by side setting in two separate ranks, each described grid
Shape be parallelogram, and the grid is arranged using 45 degree polarization modes, is provided on the short side of each grid
Radiating element；The radiating element is circle, and is opened up on the radiating element there are four gap, and four gaps are symmetrically divided
Cloth extends in the two sides of the short side of the grid, and along the short side direction of the grid.
Above-mentioned antenna element, aerial array and antenna include metal ground layer, medium substrate and antenna lattice by antenna element
Unit；Metal ground layer and antenna lattice unit are separately positioned on two opposite surfaces of medium substrate；The profile of antenna lattice unit
For the shape of parallelogram, and antenna lattice unit is arranged using 45 degree polarization modes；The long side and short side of antenna lattice unit be
Two adjacent sides；Radiating element is provided at least one short side of antenna lattice unit.Due to the wheel of above-mentioned antenna lattice unit
Exterior feature is the shape of parallelogram, and antenna lattice unit is radiated using 45 degree of polarization mode settings when under complex environment
When, such as when meeting, traditional rectangular patch formula series connection is avoided by antenna receiving and transmitting signal simultaneously between two vehicles
Caused by feeding classification the problem of severe jamming, which can be polarized by 45 degree of polarization modes, be avoided
Interference between signal greatly improves the anti-interference ability of antenna, therefore is greatly improved the detectivity of radar.Together
When, antenna lattice unit is 45 degree of polarization mode settings, it can be realized horizontal plane and cover on a large scale, the covering of vertical plane narrow beam, because
The directional diagram minor lobe of this antenna element is low, can effectively reduce antenna size, has high-gain and small in size, convenient for miniaturization
And lightweight, therefore be easy to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the antenna element that one embodiment provides；
Fig. 2 is the structural schematic diagram for the antenna element that another embodiment provides；
Fig. 3 is the structural schematic diagram for the aerial array that one embodiment provides；
Fig. 4 is the structural schematic diagram for the aerial array that another embodiment provides；
The schematic diagram of the size of each part in the aerial array that Fig. 5 provides for another embodiment；
Fig. 5 a is the reflection coefficient schematic diagram for the aerial array that one embodiment provides；
Fig. 5 b is the elevation radiation patytern for the aerial array that one embodiment provides；
Fig. 5 c is the horizontal radiation pattern for the aerial array that one embodiment provides.
Description of symbols:
Metal ground layer: 100；Medium substrate: 200；
Antenna lattice unit: 300；Radiating element: 310；
Coaxial feeder: 400；First row antenna element: 500；
Secondary series antenna element: 600；Grid radiating curtain: 700；
Grid: 710.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Antenna element, aerial array and antenna provided by the embodiments of the present application can be applied in 24GHz automobile collision preventing thunder
It reaches, is asked below with specific embodiment how the technical solution of the application and the technical solution of the application solve above-mentioned technology
Topic is described in detail.These specific embodiments can be combined with each other below, for the same or similar concept or process
It may repeat no more in certain embodiments.Below in conjunction with attached drawing, embodiments herein is described.
Fig. 1 is the antenna element that one embodiment provides, as shown in Figure 1, antenna element includes: metal ground layer 100, medium
Substrate 200 and antenna lattice unit 300；Metal ground layer 100 and antenna lattice unit 300 are separately positioned on two of medium substrate 200
Opposite surface；The profile of antenna lattice unit 300 is the shape of parallelogram, and antenna lattice unit 300 is using 45 degree of polarization
Mode is arranged；The long side and short side of antenna lattice unit 300 are two adjacent sides；At least one short side of antenna lattice unit 300
On be provided with radiating element 310.
It should be noted that the long side and short side of antenna lattice unit 300 are two adjacent sides.
Specifically, above-mentioned antenna element includes: metal ground layer 100, medium substrate 200 and antenna lattice unit 300.Medium base
Plate 200 has opposite first surface and second surface, and metal ground layer 100 is attached to the first surface of medium substrate 200, antenna
Lattice unit 300 is attached to the second surface opposite with 200 first surface of medium substrate.Wherein, antenna lattice unit 300 is each side
With one fixed width, the profile of the antenna lattice unit is the shape of parallelogram, and antenna lattice unit 300 is using 45 degree of polarization
Mode is arranged, it is alternatively possible to be arranged using positive 45 degree of polarization modes, can also be arranged using minus 45 degree of polarization modes；Example
Such as angle can be 45.It should be noted that positive 45 degree of polarization modes and minus 45 degree of polarization modes are respectively 45 degree of angle settings
It is formed in the different directions of parallelogram.In the actual processing process, it is understood that there may be error, so that actual processing obtained
The long side of antenna lattice unit and the angle of short side are 43 degree, 44 degree, 46 degree, 47 degree etc..Certain angle resists closer to 45 degree
Interference performance is stronger.It is provided with radiating element 310 at least one short side of the antenna lattice unit 300, can be one of them
One radiating element 310 is set on short side, is also possible to two short sides and is respectively set radiating element 310, the present embodiment to this not
It limits.The radiating element 310 can be a metal patch, be attached on medium substrate, and the shape of the metal patch can be with
It can also be other shapes, to this present embodiment and without limitation for round, ellipse.Two short sides are respectively set one in Fig. 2
A radiating element 310, and it is to exemplify that the shape of radiating element 310, which is round,.Optionally, when antenna lattice unit 300 uses 45
When spending polarization mode setting, there is better anti-jamming effectiveness, dramatically promote the anti-interference ability of radar.
In the present embodiment, signal transmits in antenna lattice unit, and is radiated by radiating element, due to above-mentioned antenna
The profile of lattice unit is the shape of parallelogram, and 45 degree of polarization modes of use of antenna lattice unit are arranged, therefore when complexity
When radiation under environment, such as when meeting, avoided traditional by antenna receiving and transmitting signal simultaneously between two vehicles
The problem of severe jamming caused by rectangular patch formula series feed mode, the antenna lattice unit can be by using 45 degree of polarization sides
Formula avoids the interference between signal, greatly improves the anti-interference ability of antenna, therefore is greatly improved the spy of radar
Survey ability.Meanwhile the angle between the long side and short side of antenna lattice unit is 45 degree of polarization mode settings, can be realized horizontal plane
A wide range of covering, the covering of vertical plane narrow beam, therefore the directional diagram minor lobe of the antenna element is low, can effectively reduce antenna ruler
It is very little, there is high-gain and small in size, be convenient for miniaturization and lightweight, therefore be easy to use.
Optionally, radiating element 310 is respectively arranged on two opposite short sides of antenna lattice unit 300, therefore compared to only
Its radianting capacity of radiating element 310 is set stronger on one of short side of antenna lattice unit 300, expands antenna coverage
Domain improves the radianting capacity of antenna.
Optionally, on the basis of the above embodiments, above-mentioned radiating element 310 can be circle, using circular radiation
Unit radiates signal, is capable of the radiation scope in further expansion horizontal plane direction, realizes the covering of vertical plane narrow beam, into
And antenna element is improved in the radiance in horizontal plane direction.
Optionally, four gaps can also be opened up on radiating element 310, may refer to shown in Fig. 2, this four gaps are symmetrical
The two sides of the short side of antenna lattice unit 300 are distributed in, and are extended along the short side direction of antenna lattice unit 300.In the present embodiment, lead to
It crosses on radiating element 310 and opens up four gaps, so that the radiation characteristic of antenna element is changed, to further reduce day
Linear dimension, therefore it is convenient for antenna miniaturization and lightweight, it is more convenient to use.
Optionally, on the basis of the above embodiments, the half of the length of the short side of antenna lattice unit 300 and medium wavelength
Between difference be less than medium wavelength 1/5th；Difference between the length and medium wavelength of the long side of antenna lattice unit 300
Value is less than 1/5th of medium wavelength.Optionally, the length of the short side of antenna lattice unit 300 can be the one of medium wavelength
Half, it is also possible to be approximately equal to the half of medium wavelength, can also be other length, as long as the difference of the two is no more than medium wavelength
1/5th.The length of the long side of antenna lattice unit 300 can be equal to medium wavelength, be also possible to be approximately equal to medium wave
It is long, it can also be other length, as long as the difference of the two is no more than 1/5th of medium wavelength.When antenna lattice unit
The length of 300 short side be equal to medium wavelength half, and the length of the long side of antenna lattice unit 300 be equal to medium wavelength when
It waits, can realize impedance matching to the greatest extent, further promote antenna performance.In the present embodiment, due to antenna lattice unit 300
The length of short side and the half of medium wavelength between difference be less than medium wavelength 1/5th, antenna lattice unit 300
Difference between the length and medium wavelength of long side is less than 1/5th of medium wavelength, therefore enables to antenna lattice unit
300 short side and the length of long side realize impedance matching, and then improve antenna performance.
Optionally, can also be as in Fig. 2, antenna element further includes coaxial feeder 400, the axis and day of coaxial feeder 400
Line lattice unit 300 connects and is arranged in the intermediate region of antenna lattice unit, and the shielded layer and metal ground layer of coaxial feeder 400
100 connections.Optionally, which can be 50 ohm of matched feeder lines.Pass through the axis and antenna lattice of coaxial feeder 400
Unit 300 connects and is arranged in the intermediate region of antenna lattice, can reduce the phase difference of signal transmission, improve antenna performance.
In one embodiment, as shown in figure 3, additionally providing a kind of aerial array, which includes first row day
Line unit 500, first row antenna element 500 include mutiple antennas unit 300, the structure of antenna element 300 and any of the above-described reality
The structure for applying the antenna element 300 in example is identical, extending direction of this mutiple antennas unit 300 along the long side of antenna element 300
It sets gradually.The technical principle and beneficial effect of aerial array provided in this embodiment may refer in previous embodiment about day
The description of line unit, the present embodiment are further enhanced while can reduce interference by the superposition of mutiple antennas unit
The radiance of aerial array.
Optionally, above-mentioned aerial array can be as shown in figure 4, include secondary series antenna element 600, the second array antenna list
Member includes mutiple antennas unit 300；The structure of antenna element 300 in the structure of antenna element 300 and any of the above-described embodiment
It is identical；This mutiple antennas unit 300 is set gradually along the extending direction of the long side of antenna element, wherein secondary series antenna element
600 set gradually with first row antenna element 500 in the vertical direction of the long side of antenna element 300, and secondary series antenna element
600 are in first row antenna element 500 in approximately the same plane.The technical principle of aerial array provided in this embodiment and beneficial
Effect may refer to the description of aforementioned antenna unit 300, and the present embodiment passes through first row antenna element and secondary series antenna element
Be superposed, while can reduce interference, further enhance the radiance of aerial array.
Optionally, radiation list on the basis of above-described embodiment embodiment shown in Fig. 4, in first row antenna element 500
Member 310, it is wrong with the radiating element 310 in the secondary series antenna element 600 on the extending direction of the long side of antenna element 300
Open the length setting of half of medium wavelength.Wrong half of Jie of radiating element 310 in the present embodiment, by will be distributed over two column
The length of matter wavelength is arranged, and can further phase is adjusted and be compensated, so that unit phase, therefore further mention
Antenna performance is risen.
In one embodiment, the quantity of first row antenna element 500 is less than the quantity of secondary series antenna element 600, example
Such as, one fewer than the quantity of secondary series antenna element 600 of the quantity of first row antenna element 500, naturally it is also possible to few two or
Three or more, to this, the present embodiment does not limit.When the quantity of first row antenna element is less than the quantity of secondary series antenna element
When, aerial array is evenly distributed, so that antenna performance is further promoted.When the quantity of first row antenna element 500
It is 7, when 600 quantity of secondary series antenna element is 8, while the radiance of aerial array greatly promotes, so that volume is minimum,
Therefore it is easy to use.
In one embodiment, shown in Figure 5, D is the diameter of radiating element 310, and L1 is adjacent radiation unit 310
Spacing, W1 are the width of the long side of antenna element, and L2 is the length of the short side of antenna element, and W2 is the width of the short side of antenna element
Degree, L3 are the half of L1.Wherein, D is more than or equal to 0.3 times of medium wavelength, is less than or equal to 0.54 times of medium wavelength；L1 is more than or equal to
0.9 times of medium wavelength is less than or equal to 1.1 times of medium wavelength, and W1 is more than or equal to 0.05 times of medium wavelength, is less than or equal to 0.1 times of Jie
Matter wavelength；L2 is more than or equal to 0.5 times of medium wavelength, is less than or equal to 0.7 times of medium wavelength, and W2 is more than or equal to 0.05 times of medium wave
It is long, it is less than or equal to 0.1 times of medium wavelength.When the size of the aerial array is as shown above, the anti-interference energy of the aerial array
Power is stronger.When the aerial array is used for 24GHz-24.25GHz, the reflection coefficient of aerial array can be as shown in Figure 5 a, dB (S
(1,1)) value be all larger than -15dB, the impedance matching of antenna is good.The elevation radiation patytern of aerial array is as shown in Figure 5 b, day
The horizontal radiation pattern of linear array is as shown in Figure 5 c.In the present embodiment, antenna composed by the antenna element using size as above
Array enables to the impedance of aerial array more to match, and the phase difference between each radiating element reduces, in aerial array
It while radiance is promoted, enables to volume to reduce, therefore more minimize, is easy to use.
With further reference to antenna described in Fig. 4, from entirety, including metal ground layer 100, medium substrate 200 and grid
Radiating curtain 700, metal back layer 100 and grid radiating curtain 700 are respectively arranged at two opposite surfaces of medium substrate 200,
Grid radiating curtain 700 includes multiple grids 710, and multiple grids 710 extend side by side setting in two separate ranks, each grid 710
Shape is parallelogram, and grid 710 is arranged using 45 degree of polarization modes, is provided with radiation on the short side of each grid 710
Unit 310.Optionally, radiating element 310 can be circle, and be opened up on radiating element 310 there are four gap, roll over four gaps
The two sides of the short side of the grid 710 are symmetrically distributed in, and are extended along the short side direction of grid 710.Optionally, in the present embodiment
Antenna grid array 700 and the structure of radiating element 310 may refer to the structure of the antenna element in above-mentioned each embodiment.
Implementing principle and technical effect in the present embodiment may refer to above-mentioned each embodiment, and details are not described herein again.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of antenna element, which is characterized in that the antenna element includes: metal ground layer, medium substrate and antenna lattice unit；
The metal ground layer and the antenna lattice unit are separately positioned on two opposite surfaces of the medium substrate；
The profile of the antenna lattice unit is the shape of parallelogram, and the antenna lattice unit is set using 45 degree of polarization modes
It sets；The long side and short side of the antenna lattice unit are two adjacent sides；
Radiating element is provided at least one short side of the antenna lattice unit.
2. antenna element according to claim 1, which is characterized in that divide on two opposite short sides of the antenna lattice unit
It is not provided with the radiating element.
3. antenna element according to claim 1 or 2, which is characterized in that the radiating element is circle, and the radiation is single
It is opened up in member there are four gap, four gaps are symmetrically distributed in the two sides of the short side of the antenna lattice unit, and along described
The short side direction of antenna lattice unit extends.
4. antenna element according to claim 3, which is characterized in that the length and medium of the short side of the antenna lattice unit
Difference between the half of wavelength is less than 1/5th of the medium wavelength；The length of the long side of the antenna lattice unit and institute
The difference given an account of between matter wavelength is less than 1/5th of the medium wavelength.
5. antenna element according to claim 4, which is characterized in that it further include coaxial feeder, the axis of the coaxial feeder
Line is connect with the antenna lattice unit, and the intermediate region of the antenna lattice unit is arranged in；The shielded layer of the coaxial feeder
It is connect with the metal ground layer.
6. a kind of aerial array, which is characterized in that the aerial array includes first row antenna element, the first array antenna list
Member includes mutiple antennas unit, antenna element knot described in any one of the structure of the antenna element and claim 1-6
Structure is identical, and the extending direction of long side of multiple antenna elements along the antenna element is set gradually.
7. aerial array according to claim 6, which is characterized in that the aerial array further includes the second array antenna list
Member, the secondary series antenna element include multiple antenna elements, length of multiple antenna elements along the antenna element
The extending direction on side is set gradually；
The secondary series antenna element and the first row antenna element the vertical direction of the long side of the antenna element successively
Setting, and the secondary series antenna element and the first row antenna element are in approximately the same plane.
8. aerial array according to claim 7, which is characterized in that the radiating element in the first row antenna element,
It is staggered described in half on the extending direction of the long side of the antenna element with the radiating element in the secondary series antenna element
The length of medium wavelength is arranged.
9. aerial array according to claim 7 or 8, which is characterized in that D be the radiating element diameter, D be greater than etc.
In 0.3 times of medium wavelength, it is less than or equal to 0.54 times of medium wavelength；L1 is the spacing of adjacent radiation unit, and L1 is more than or equal to 0.9 times
Medium wavelength is less than or equal to 1.1 times of medium wavelength；W1 is the width of the long side of the antenna lattice unit, and W1 is more than or equal to 0.05
Times medium wavelength is less than or equal to 0.1 times of medium wavelength；L2 is the length of the short side of the antenna element, is more than or equal to 0.5 times of Jie
Matter wavelength is less than or equal to 0.7 times of medium wavelength, and W2 is the width of the short side of the antenna element, and W2 is more than or equal to 0.05 times of Jie
Matter wavelength, is less than or equal to 0.1 times of medium wavelength, and L3 is the half of L1.
10. a kind of antenna, which is characterized in that the antenna includes metal ground layer, medium substrate and grid radiating curtain, described
Metal back layer and the grid radiating curtain are respectively arranged at two opposite surfaces of the medium substrate, and the grid radiates battle array
Column include multiple grids, and the multiple grid extend side by side setting in two separate ranks, and the shape of each grid is parallel four side
Shape, and the grid is arranged using 45 degree of polarization modes, is provided with radiating element on the short side of each grid；The radiation
Unit is circle, and is opened up on the radiating element there are four gap, and four gaps are symmetrically distributed in the short of the grid
The two sides on side, and extend along the short side direction of the grid.
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| CN201910704563.1A CN110429376B (en) | 2019-07-31 | 2019-07-31 | Antenna unit, antenna array and antenna |
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| CN201910704563.1A CN110429376B (en) | 2019-07-31 | 2019-07-31 | Antenna unit, antenna array and antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886280A (en) * | 2019-11-29 | 2021-06-01 | 华为技术有限公司 | Antenna system and communication equipment |
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| CN113140904A (en) * | 2021-04-12 | 2021-07-20 | 西安天和防务技术股份有限公司 | Dual-polarized antenna |
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| CN110429376B (en) | 2021-11-19 |
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