CN108493573A - A kind of oscillator and its array antenna - Google Patents
A kind of oscillator and its array antenna Download PDFInfo
- Publication number
- CN108493573A CN108493573A CN201810420332.3A CN201810420332A CN108493573A CN 108493573 A CN108493573 A CN 108493573A CN 201810420332 A CN201810420332 A CN 201810420332A CN 108493573 A CN108493573 A CN 108493573A
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- Prior art keywords
- folded dipole
- oscillator
- power feed
- feed hole
- pillar
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- 239000002184 metal Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 12
- 238000004891 communication Methods 0.000 abstract description 9
- 208000002925 dental caries Diseases 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000005388 cross polarization Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- 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
- H01Q1/12—Supports; Mounting means
-
- 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
-
- 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
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- 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
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
This application discloses a kind of oscillator and its array antennas.The oscillator of the application is joined end to end by the identical folded dipole arm of four sizes, form integrally formed folded dipole, the geometric center of folded dipole has oscillator pillar, power feed hole corresponding with each folded dipole arm is offered in oscillator pillar, amount to four power feed holes, four square arrangements of power feed hole, the aperture of the adjacent power feed hole of two of which are more than the aperture of other two adjacent power feed hole, form asymmetric feed structure.The oscillator of the application is designed using end to end folded dipole structure, in a limited space the interior length for substantially increasing radiation arm, achievees the purpose that improve bandwidth；Also, power feed hole uses asymmetrical design so that when electromagnetic wave is by two different size of cavitys, substantially improves isolation, and then improve communication quality and capacity, solves the problems, such as that coupling feed way communication quality and capacity decline.
Description
Technical field
This application involves field of antenna, more particularly to a kind of oscillator and its array antenna.
Background technology
Existing relatively common array antenna generally goes through cable welding and is fed, but there are all for cable welding feed
More defects, therefore, the applicant propose in patent before by way of couple feed.Couple feed does not need not only
Welding, reduces the electroplating technology to oscillator itself, reduces production cost, also more environmentally-friendly.
But find during use, after being changed to couple feed, it is easy that there are what communication quality and capacity declined to ask
Topic.
Invention content
The purpose of the application is to provide a kind of oscillator and its array antenna.
To achieve the goals above, the application uses following technical scheme：
The one side of the application discloses a kind of novel oscillator, and the oscillator is first by the identical folded dipole arm of four sizes
Tail is connected, and forms integrally formed folded dipole, and the geometric center of folded dipole has oscillator pillar, offered in oscillator pillar
Power feed hole corresponding with each folded dipole arm, total four power feed holes, four square arrangements of power feed hole, two of which are adjacent
The aperture of power feed hole is more than the aperture of other two adjacent power feed hole, forms asymmetric feed structure.
It should be noted that the oscillator of the application, by four power feed holes of folded dipole, especially adjacent power feed hole
Aperture design is different size so that electromagnetic wave substantially improves isolation, and then improve by two different size of cavitys
Communication quality and capacity.
Preferably, folded dipole arm is in T-shape, and two ends of " one " part of T-shape folded dipole arm extend downwardly,
Bandwidth adjustment slot is formed with the part its " I ".
It should be noted that two ends of " one " part of T-shape folded dipole arm are downwardly extending bandwidth tune
Slot is saved, it is intended that increasing the length of radiation arm in a limited space as possible, and then achievees the purpose that improve bandwidth.
Preferably, two ends of " one " part of the folded dipole arm of T-shape have the pierced pattern of arbitrary shape.
It should be noted that two ends of " one " part have the pierced pattern of arbitrary shape, effect is not change
In the case that variable bandwidth regulating tank acts on, reduce the weight of folded dipole so that folded dipole is lighter and handier, can be adapted for more
Occasion.Also, pierced pattern can be arbitrary shape, can be designed to corresponding company or product logo, not do have herein
Body limits.
Preferably, in folded dipole there are several to prolong the metal adjustable column that surface extends vertically upwards.
It should be noted that the effect of metal adjustable column is wide for adjusting centre frequency, adjusting bandwidth, reduction lobe
Degree, plays the role of director.Usual metal adjustable column is cylindrical structure, specific size and height, can be according to required
Depending on regulating effect or product design demand, it is not specifically limited herein.
Preferably, folded dipole and oscillator pillar are integrally formed.
It should be noted that folded dipole and the integrated molding of oscillator pillar can reduce part, assembly welding is reduced, in turn
Reduce the various defects caused by assembly welding.
The another side of the application discloses a kind of array antenna, which includes reflecting plate and be mounted on reflecting plate
Several folded dipoles；Wherein, folded dipole is joined end to end by the identical folded dipole arm of four sizes, and composition is integrally formed
Folded dipole, the geometric center of folded dipole has oscillator pillar, offered in oscillator pillar corresponding with each folded dipole arm
Power feed hole, amount to four power feed holes, four square arrangements of power feed hole, the aperture of the adjacent power feed hole of two of which is more than another
The aperture of outer two adjacent power feed holes, forms asymmetric feed structure.
It should be noted that the array antenna of the application, actually uses the array antenna of the oscillator of the application, by
In the oscillator using the application so that electromagnetic wave substantially improves isolation, and then improve by two different size of cavitys
Communication quality and capacity.
Preferably, folded dipole arm is in T-shape, and two ends of " one " part of T-shape folded dipole arm extend downwardly,
Bandwidth adjustment slot is formed with the part its " I ".
Preferably, two ends of " one " part of the folded dipole arm of T-shape have the pierced pattern of arbitrary shape.
Preferably, in folded dipole there are several to prolong the metal adjustable column that surface extends vertically upwards.
Preferably, folded dipole and oscillator pillar are integrally formed.
Preferably, reflecting plate is single or multi-layer structure, and reflection plate surface is for installing folded dipole, inside reflecting plate
Single-layer or multi-layer space forms feeding network for installing strip line by strip line.
Preferably, the two side walls of reflecting plate have the groove structure to concave, for installing cable.It needs to illustrate
It is that cable herein refers to the cable of the access interface of antenna entirety.
Due to using the technology described above, the advantageous effect of the application is：
The oscillator and array antenna of the application is designed using end to end folded dipole structure, interior in a limited space
The length for substantially increasing radiation arm achievees the purpose that improve bandwidth；Also, power feed hole uses asymmetrical design so that electromagnetism
When wave is by two different size of cavitys, isolation is substantially improved, and then improve communication quality and capacity, solve coupling
The problem of closing feeding classification communication quality and capacity decline.
Description of the drawings
Fig. 1 is the structural schematic diagram of novel oscillator in the embodiment of the present application；
Fig. 2 is the structural schematic diagram at novel another visual angle of oscillator in the embodiment of the present application；
Fig. 3 is the structural schematic diagram at novel another visual angle of oscillator in the embodiment of the present application；
Fig. 4 is the structural schematic diagram at novel another visual angle of oscillator in the embodiment of the present application；
Fig. 5 is the structural schematic diagram that oscillator is installed to reflecting plate in the embodiment of the present application；
Fig. 6 is the structural schematic diagram of array antenna in the embodiment of the present application；
Fig. 7 is the decomposition texture schematic diagram of array antenna in the embodiment of the present application；
Fig. 8 is the isolation degree test result of asymmetric folded dipole in the embodiment of the present application；
Fig. 9 is the return loss test result of asymmetric folded dipole in the embodiment of the present application；
Figure 10 is the horizontal directivity pattern test result of asymmetric folded dipole in the embodiment of the present application；
Figure 11 is the Cross polarization pattern test result of asymmetric folded dipole in the embodiment of the present application；
Figure 12 is the isolation degree test result of conventional symmetrical folded dipole in the embodiment of the present application.
Specific implementation mode
The application is described in further detail below by specific embodiments and the drawings.Following embodiment is only to the application
It is further described, should not be construed as the limitation to the application.
Embodiment
The novel oscillator of this example, as shown in Figures 1 to 4, by the identical folded dipole arm 11,12,13 and 14 of four sizes,
Join end to end the integrally formed folded dipole of composition, and the geometric center of folded dipole has oscillator pillar 15, is opened in oscillator pillar
Equipped with power feed hole corresponding with each folded dipole arm, amount to four power feed holes 21,22,23 and 24, four power feed holes are square
Arrangement, the aperture of the adjacent power feed hole of two of which are more than the aperture of other two adjacent power feed hole, form asymmetric feed structure,
Such as first group of power feed hole 21 and 22, the pore size of and second group of power feed hole 23 and 24, two groups of power feed holes is different, i.e. this example
Asymmetric folded dipole.The folded dipole and oscillator pillar of this example are integrally formed.
Wherein, folded dipole arm is in T-shape, and two ends of " one " part of T-shape folded dipole arm extend downwardly, should
Extension 16 forms bandwidth adjustment slot 18 with its part " I " 17；" one " of the folded dipole arm of T-shape partly extend downwardly two
A end, i.e. extension 16 have pierced pattern 19, and the pierced pattern of this example is heart.
Prolong the cylindrical metal adjustable column 3 that surface extends vertically upwards with several in this example folded dipole.Metal
The effect of adjustable column 3 is for adjusting centre frequency, adjusting bandwidth, reduction lobe width, play the role of director.
According to conventional assembling mode, the folded dipole of this example is assembled into array antenna and tests its isolation and echo damage
Consumption, array antenna is as shown in Figures 5 to 7, including reflecting plate 2 and several folded dipoles 1 on reflecting plate 2.
Using Agilent E5071C Network Analyzers, isolation degree test is carried out to this example asymmetry folded dipole, as a result such as
Shown in Fig. 8.Fig. 8's the results show that using this example asymmetric folded dipole, in 1690-2690MHz frequency ranges, isolation is excellent
In -32dB, satisfaction group battle array design requirement.Return loss test to this example asymmetry folded dipole, the results are shown in Figure 9, Fig. 9
The results show that the return loss of two-port can reach expected design effect all in -20dB.
Outdoor far field test is carried out to the antenna of this example, tests the horizontal radiation pattern of single oscillator, as a result such as Figure 10 and
Shown in table 1, the results show that the oscillator beam angle of this example is about in 57-67 degree.
The horizontal plane lobe width test result of 1 each frequency point of table
| Frequency point (MHz) | Lobe width (degree) | Frequency point (MHz) | Lobe width (degree) |
| 1710 | 67.0 | 2300 | 63.0 |
| 1800 | 65.7 | 2400 | 63.1 |
| 1900 | 66.3 | 2500 | 61.7 |
| 2000 | 65.2 | 2600 | 58.9 |
| 2100 | 63.8 | 2690 | 57.6 |
| 2180 | 63.1 | / | / |
Outdoor far field test is carried out to the antenna of this example, the Cross polarization pattern of single oscillator is tested, as a result such as Figure 11
It is shown, the results show that being better than -15dB in positive and negative 60 degree of cross polarization.
At the same time, this example as a comparison, using traditional symmetrical folded dipole, i.e., size all phases of four power feed holes
Together, other conditions are identical as the folded dipole of this example, equally carry out isolation degree test using Agilent E5071C Network Analyzers,
As a result as shown in figure 12.Figure 12's the results show that all identical symmetrical dipole of the size of four power feed holes, in 1690-2690MHz
In frequency range, isolation only -22dB cannot be satisfied a group battle array design requirement.
The above contrast test and the results show that the different asymmetric folded dipole of the size of four power feed holes of this example,
With isolation more, this can effectively improve communication quality and capacity, so improve coupling feed way communication quality and
The problem of capacity declines.
The foregoing is a further detailed description of the present application in conjunction with specific implementation manners, and it cannot be said that this Shen
Specific implementation please is confined to these explanations.For those of ordinary skill in the art to which this application belongs, it is not taking off
Under the premise of conceiving from the application, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the protection of the application
Range.
Claims (10)
1. a kind of oscillator, it is characterised in that：The oscillator is joined end to end by the identical folded dipole arm of four sizes, and group is integral
The geometric center of molding folded dipole, folded dipole has oscillator pillar, is offered and each folded dipole arm in oscillator pillar
Corresponding power feed hole amounts to four power feed holes, and four rectangular arrangements of power feed hole, the aperture of the adjacent power feed hole of two of which is more than
The aperture of other two adjacent power feed hole forms asymmetric feed structure.
2. novel oscillator according to claim 1, it is characterised in that：The folded dipole arm is in T-shape, and T-shape is equivalent
Two ends of " one " part of oscillator arms extend downwardly, and bandwidth adjustment slot is formed with the part its " I ".
3. novel oscillator according to claim 1, it is characterised in that：" one " part of the folded dipole arm of the T-shape
Two ends have arbitrary shape pierced pattern.
4. novel oscillator according to claim 1, it is characterised in that：There are several to prolong surface to hang down in the folded dipole
The metal adjustable column directly upwardly extended.
5. according to the novel oscillator of claim 1-4 any one of them, it is characterised in that：The folded dipole and the oscillator branch
Column is integrally formed.
6. a kind of array antenna, it is characterised in that：Several folded dipoles including reflecting plate and on reflecting plate；It is described
Folded dipole is joined end to end by the identical folded dipole arm of four sizes, forms integrally formed folded dipole, folded dipole
Geometric center has oscillator pillar, and power feed hole corresponding with each folded dipole arm is offered in oscillator pillar, amounts to four feeds
Hole, four square arrangements of power feed hole, the aperture of the adjacent power feed hole of two of which are more than the hole of other two adjacent power feed hole
Diameter forms asymmetric feed structure.
7. array antenna according to claim 6, it is characterised in that：The folded dipole arm is in T-shape, and T-shape is equivalent
Two ends of " one " part of oscillator arms extend downwardly, and bandwidth adjustment slot is formed with the part its " I ".
8. array antenna according to claim 6, it is characterised in that：" one " part of the folded dipole arm of the T-shape
Two ends have arbitrary shape pierced pattern；
Preferably, in folded dipole there are several to prolong the metal adjustable column that surface extends vertically upwards；
Preferably, folded dipole and the oscillator pillar are integrally formed.
9. according to claim 6-8 any one of them array antennas, it is characterised in that：The reflecting plate is single-layer or multi-layer knot
Structure, reflection plate surface is for installing folded dipole, and the single-layer or multi-layer space inside reflecting plate is for installing strip line, by band-like
Line forms feeding network.
10. according to claim 6-8 any one of them array antennas, it is characterised in that：The two side walls of the reflecting plate have
There is the groove structure to concave, for installing cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810420332.3A CN108493573B (en) | 2018-05-04 | 2018-05-04 | Vibrator and array antenna thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810420332.3A CN108493573B (en) | 2018-05-04 | 2018-05-04 | Vibrator and array antenna thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108493573A true CN108493573A (en) | 2018-09-04 |
| CN108493573B CN108493573B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810420332.3A Active CN108493573B (en) | 2018-05-04 | 2018-05-04 | Vibrator and array antenna thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244652A (en) * | 2018-11-06 | 2019-01-18 | 深圳市鑫龙通信技术有限公司 | A kind of antenna oscillator of base station |
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| Publication number | Publication date |
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| CN108493573B (en) | 2023-12-29 |
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