CN208637603U - A kind of MIMO omnidirectional terminal dipole antenna - Google Patents
A kind of MIMO omnidirectional terminal dipole antenna Download PDFInfo
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- CN208637603U CN208637603U CN201821536786.9U CN201821536786U CN208637603U CN 208637603 U CN208637603 U CN 208637603U CN 201821536786 U CN201821536786 U CN 201821536786U CN 208637603 U CN208637603 U CN 208637603U
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- dielectric
- slab
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- dipole antenna
- dipole element
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Abstract
The utility model discloses a kind of MIMO omnidirectional terminal dipole antenna, it include: two dielectric-slabs, it is equipped with dipole element, and two dielectric-slab is respectively equipped with feeding point to connect different feed lines, the dipole element includes the ground connection oscillator arms set on the dipole element arm of the dielectric-slab one side and set on dielectric-slab another side described in this；And earth plate, the lower end of two dielectric-slab is both secured to the earth plate, and the side of two dielectric-slabs connects and is formed with angle, and the dipole element arm is set to the one side that the dielectric-slab deviates from the angle.Technical solutions of the utility model keep low correlation while being able to achieve multi-path antenna miniaturization.
Description
Technical field
The utility model relates to antenna technical field, in particular to a kind of MIMO omnidirectional terminal dipole antenna.
Background technique
MIMO multiple-input-multiple-output wireless communication technology can greatly improve channel capacity without increase in bandwidth
With reduce transmission power, while the covering blind spot of signal in space can be reduced.MIMO technology itself is the injustice of a time-varying
Steady mimo systems have Spatial diversity, and the distance of transmission just has with short, and it is mutually isolated to improve multipath reception antenna
Interference effect is necessary, therefore mutual low correlation, while the day of mobile terminal are kept between more antennas
Line is limited by volume, weight and cost etc., also should ensure that lesser volume to reduce into while placing more antennas
This.
Utility model content
The main purpose of the utility model is to propose a kind of MIMO omnidirectional terminal dipole antenna, it is intended to realize that multi-path antenna is small
Low correlation is kept while type.
To achieve the above object, the utility model proposes MIMO omnidirectional terminal dipole antenna, comprising:
Two dielectric-slabs are equipped with dipole element, and two dielectric-slab is respectively equipped with feeding point to connect different feedbacks
Electric wire, the dipole element include set on the dipole element arm of the dielectric-slab one side and set on dielectric-slab another side described in this
It is grounded oscillator arms；And
Earth plate, the lower end of two dielectric-slab are both secured to the earth plate, and the side phase of two dielectric-slabs
Angle is connect and is formed with, the dipole element arm is set to the one side that the dielectric-slab deviates from the angle.
Preferably, the angle of the angle is set as 90 degree.
Preferably, the dipole element arm includes feeding portion and mutually parallel arrangement of first radiating doublet arm, the second radiation
Oscillator arms, one end of the feeding portion connect the middle part of the first radiating doublet arm, and the other end connects in the second radiating doublet arm
Portion.
Preferably, the first radiating doublet arm, the second radiating doublet arm are symmetrical with the feeding portion.
Preferably, the dielectric constant of the dielectric-slab is set as 4.4 to 4.6, and thickness is set as 1.5mm to 3mm.
Preferably, the ground connection oscillator arms are set to the lower end of the dielectric-slab, and the ground connection oscillator arms include connection institute
It states the grounding parts of earth plate and connects the ground connection dipole element arm of the grounding parts, the dielectric-slab corresponds to the another of the grounding parts
It is equipped with grounded metal band on one side.
Preferably, the dielectric-slab is additionally provided with the conducting dipole element arm and institute in the face for being equipped with the dipole element arm
The microstrip transmission line of feeding point is stated, and is locally overlapped between the microstrip transmission line and the grounding parts.
Preferably, the microstrip transmission line is equipped with transformer section and matching minor matters.
Preferably, two dielectric-slabs are electrically connected with Inductive component between the grounding parts.
Preferably, the Inductive component includes that magnet ring and one end connect the grounding parts of a dielectric-slab, other end connection
The grounding parts of another dielectric-slab, and it is wound in the enameled wire of the magnet ring.
Technical solutions of the utility model are on the one hand by the way that the dipole element arm of dipole element and ground connection oscillator arms to be divided into
The two sides of the dielectric-slab can reduce the size of dielectric-slab, and two dielectric-slabs (antenna element) for being equipped with dipole element are shared one piece
Earth plate, two dielectric-slabs are fixed on the earth plate and connect, so that the structure of two dielectric-slabs and earth plate is more compact, thus
Reduce the volume of the MIMO omnidirectional terminal dipole antenna；On the other hand the setting of two dielectric-slabs, which is fixed on earth plate, connects to being formed
Certain angle, and one side of the dipole element arm away from angle that radiation will be generated, so that the dipole element of two medium plate surfaces
Between electromagnetic interference it is smaller, maintain low correlation, improve the isolation of two antenna elements.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model MIMO omnidirectional terminal dipole antenna；
Fig. 2 is the cross-sectional view of Tu1Zhong MIMO omnidirectional terminal dipole antenna；
Fig. 3 is the structural schematic diagram of a dielectric-slab in Fig. 1；
Fig. 4 is the structural schematic diagram at another visual angle of dielectric-slab of Fig. 3；
Fig. 5 is the structural schematic diagram of another transfer plate in Fig. 1；
Fig. 6 is the structural schematic diagram at another visual angle of dielectric-slab of Fig. 5.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Dielectric-slab | 10 | Dipole element |
| 11 | Dipole element arm | 111 | Feeding portion |
| 112 | First radiating doublet arm | 113 | Second radiating doublet arm |
| 12 | It is grounded oscillator arms | 121 | Grounding parts |
| 122 | It is grounded dipole element arm | 2 | Earth plate |
| 13 | Fixed metal tape | 131 | Wear distribution |
| 132 | Plug division | 14 | Grounded metal band |
| 15 | Microstrip transmission line | 151 | Match minor matters |
| 152 | Feeding point | 153 | Transformer section |
| 3 | Inductive component | 31 | Magnet ring |
| 32 | Enameled wire | 4 | Outer cover |
| 5 | Pedestal | 6 | Coaxial feeder |
| 7 | Mounting assembly | 8 | Radio-frequency joint |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.In addition, the meaning of the "and/or" occurred in full text is, and including three schemes arranged side by side, by taking " A and/or B " as an example,
The scheme met simultaneously including A scheme or B scheme or A and B.In addition, the technical solution between each embodiment can be mutual
In conjunction with, but must be based on can be realized by those of ordinary skill in the art, when mutual lance occurs in the combination of technical solution
Shield or cannot achieve when, will be understood that the combination of this technical solution is not present, also not in the protection scope of the requires of the utility model
Within.
The utility model proposes a kind of MIMO omnidirectional terminal dipole antennas.
In the utility model embodiment, as shown in Figures 1 to 4, which includes:
Two dielectric-slabs 1, are equipped with dipole element 10, and to be respectively equipped with feeding point 152 different to connect for two dielectric-slab 1
Feed line, dipole element 10 include the ground connection set on the dipole element arm 11 of 1 one side of dielectric-slab and set on 1 another side of dielectric-slab
Oscillator arms 12；And
Earth plate 2, the lower end of two dielectric-slab 1 is both secured to earth plate 2, and the side of two dielectric-slabs 1 connects and formed
There is angle, dipole element arm 11 is set to the one side that dielectric-slab 1 deviates from angle.
Technical solutions of the utility model on the one hand by by each dielectric-slab 1 dipole element arm 11 and ground connection oscillator arms
12 two sides for being divided into the dielectric-slab 1 can make product size smaller, on the other hand set the dipole element arm 11 on two dielectric-slabs 1
Deviate from the back side for the angle to be formed that connects in two dielectric-slabs 1, so that low correlation is kept between two dipole element arms 11, thus
Improve the isolation of two antenna elements.
Specifically, in the present embodiment, referring in particular to Fig. 1 and Fig. 2, angle is set as 90 degree, and two dielectric-slabs 1 are on side edge
It is fixed with 90 degree of Corner butt joints, and the lower end of two dielectric-slabs 1 is fixed on earth plate 2.By crossing at right angle, first is that making two Jie
The radiated electric field interference effect that scutum 1 generates is small；Second is that dipole element 10 is metal, when right angle, cross section is small, to another dipole
10 radiated electromagnetic wave of unit blocks small.
Further, in the present embodiment, earth plate 2 is horizontally disposed, and two dielectric-slabs 1 are vertically fixed on earth plate 2, even
Pole oscillator arms 11 are set to the upper end of dielectric-slab 1, and ground connection oscillator arms 12 are set to the lower end of dielectric-slab 1, and ground connection oscillator arms 12 include connecting
It connects the grounding parts 121 of earth plate 2 and connects the ground connection dipole element arm 122 of the grounding parts 121, by by 1 lower end of dielectric-slab
Fixed to earth plate 2, while being grounded dipole element arm 122 and being directly connected to earth plate 2.
Further, in the present embodiment, dielectric-slab 1 is additionally provided with connection dipole element in the face for being equipped with dipole element arm 11
The microstrip transmission line 15 of arm 11 and feeding point 152 transmits electric current to dipole element arm 11 by microstrip transmission line 15, and micro-strip passes
It is locally overlapped between defeated line 15 and grounding parts 121, in the present embodiment, opens up an aperture at the position of overlapping, be set as even
The feeding point 152 of pole unit 10, feed line use coaxial feeder 6, and the grounded screen of coaxial feeder 6 is connected to the connection of aperture one side
The grounding parts 121 of dipole element arm 122 are grounded, feed core wire then passes through the aperture and is connected to the microstrip transmission line of another side
15, feeding network and aerial radiation are formed, meanwhile, realize the grounding parts for being connected to earth plate 2 121 and microstrip transmission line 15
It is connected, the form for making the grounding parts 121 for being connected to 6 grounded screen of coaxial feeder constitute balun with microstrip transmission line 15 is realized coaxial
6 electric current of feeder line transmits the conversion from non-equilibrium structure to balanced structure, so that coaxial feeder 6 reaches antithesis pole unit 10
Balanced feeding.In the present embodiment, copper technology is covered for dipole element arm 11 and ground connection oscillator arms 12, microstrip transmission line by printing
15, which are set as copper foil, is fixed on dielectric-slab 1.
Referring in particular to Fig. 3 to Fig. 6, further, in the present embodiment, 1 side of a dielectric-slab is equipped with and wears distribution 131, separately
The corresponding distribution 131 of wearing of one dielectric-slab 1 wears equipped with plug division 132 and is equipped with fixed metal tape on distribution 131 and plug division 132
13, plug division 132, which docks to wear to be welded and fixed after distribution 131, covers copper strips to realize being connected and fixed between two dielectric-slabs 1；Two are situated between
In the lower end insertion earth plate 2 of scutum 1, and insertion section is equipped with grounded metal band 14, thus will by welding grounded metal band 14
Two dielectric-slabs 1 are fixed on earth plate 2, and grounded metal band 14 is connected to and is set to the another side of corresponding ground connection oscillator arms 12, connects
Ground oscillator arms 12 are set to 1 lower end of dielectric-slab and connect with earth plate 2, and the connection of grounded metal band 14 is fixed while being grounded oscillator arms 12
It is welded to earth plate 2, to broaden ground connection oscillator arms 12, increases contact area, conducive to surface current is controlled, expands low frequency
Bandwidth carries out impedance matching.Wherein, fixed metal tape 13 and grounded metal band 14 can be set to but be not limited to cover copper strips, can be with
Understand, select copper strips welding more reliable, and it is preferable to be set as its diversion effect when ground connection covers copper strips.
Further, in the present embodiment, microstrip transmission line 15 is equipped with matching minor matters 151 and transformer section 153, can lead to
The size of transforming impedance minor matters 151 is crossed to adjust the current impedance between feeder line and oscillator, to expand impedance bandwidth, impedance becomes
It changes section 153 and is connected to feeding portion 111, realize the impedance matching that microstrip transmission line 15 and dipole element arm 11 are fed.
Further, in the present embodiment, Inductive component 3, the electricity are electrically connected between the grounding parts 121 on two dielectric-slabs 1
Sense component 3 includes that grounding parts 121, the other end on one dielectric-slab 1 of magnet ring 31 and one end connection connect connecing on another transfer plate 1
Ground portion 121, and it is wound in the enameled wire 32 of magnet ring 31.Enameled wire 32 welds the grounding parts 121 of two groups of dielectric-slabs 1, to be hindered
Frequency bandwidth is expanded in anti-matching.Right the design is without being limited thereto, in other embodiments, the electricity of non-bareing coil can also be used
Sense.
Further, in the present embodiment, dipole element arm 11 includes feeding portion 111 and mutually parallel arrangement of first spoke
Oscillator arms 112, the second radiating doublet arm 113 are penetrated, one end of feeding portion 111 connects the middle part of the first radiating doublet arm 112, another
The middle part of the second radiating doublet arm 113 of end connection, in this way, making the first radiating doublet arm 112, the second radiating doublet arm 113 simultaneously
Connection is connected to microstrip transmission line 15, and current path is consistent, realizes electric current same width in the same direction.Further, in the present embodiment, first
Radiating doublet arm 112, the second radiating doublet arm 113 are symmetrical with feeding portion 111, in this way, the dipole element arm of " H " type just can be formed
11, the dipole element arm 11 for being arranged to " H " type can expand the operational frequency bandwidth of the MIMO omnidirectional terminal dipole antenna.
Further, in the present embodiment, the first radiating doublet arm 112, the second radiating doublet arm 113 are on dielectric-slab 1
Length can be adjusted according to frequency wavelength, so that it is met resonance.
Further, since the dielectric constant of dielectric-slab 1 is higher, thickness is bigger, and wavelength is just smaller, that is, antenna oscillator
Size is smaller, and in the present embodiment, the dielectric constant of dielectric-slab 1 is set as 4.4 to 4.6, and thickness is set as 1.5mm to 3mm, by setting
High dielectric constant and thickness are set, increase thickness appropriate can broaden bandwidth, and meet in certain frequency range, reduce antenna
Oscillator size, to reduce the volume of antenna assembly.In the present embodiment, the dielectric constant of dielectric-slab 1 is preferably set to 4.4 ring
Oxygen medium plate 1, with a thickness of 2mm.
Further, in the present embodiment, MIMO omnidirectional terminal dipole antenna further includes pedestal 5 and antenna house, antenna house
And pedestal 5 constitutes the MIMO omnidirectional terminal dipole antenna shell, shell can be, but not limited to setting cylindrical type, the shell of cylindrical type
More beautiful and wind resistance is preferable.The size of the shell is set as diameter 50mm, high 88mm in the present embodiment.The setting of earth plate 2 exists
On pedestal 5, the setting of two dielectric-slabs 1 is fixed in outer cover 4, dipole element arm 11 and the microstrip transmission line for connecting dipole element arm 11
15 are located at lateral surface of the dielectric-slab 1 towards antenna house, and the setting of ground connection oscillator arms 12 connects in medial surface, two 6 one end of coaxial feeder
Radio-frequency joint 8 is connect, the other end wears pedestal 5 and earth plate 2, in the angle that two dielectric-slabs 1 are formed, is sequentially connected ground connection vibration
The grounding parts 122 and microstrip transmission line 15 of sub- arm 12 form feeding network and aerial radiation.In this way, further such that the antenna
Component it is compact, what is occupied is small in size, and the weight of entire antenna is only 320g in the present embodiment.Further, in radio-frequency joint 8
The mounting assembly 7 for installing the antenna assembly is equipped between pedestal 5, mounting assembly 7 includes three and wears two coaxial feeders 6
Combine the flange part of installation.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of MIMO omnidirectional terminal dipole antenna characterized by comprising
Two dielectric-slabs, are equipped with dipole element, and two dielectric-slab is respectively equipped with feeding point to connect different feed lines,
The dipole element includes the ground connection set on the dipole element arm of the dielectric-slab one side and set on dielectric-slab another side described in this
Oscillator arms；And
Earth plate, the lower end of two dielectric-slab is both secured to the earth plate, and the side of two dielectric-slabs connects simultaneously
It is formed with angle, the dipole element arm is set to the one side that the dielectric-slab deviates from the angle.
2. MIMO omnidirectional terminal dipole antenna as described in claim 1, which is characterized in that the angle of the angle is set as 90
Degree.
3. MIMO omnidirectional terminal dipole antenna as described in claim 1, which is characterized in that the dipole element arm includes feed-in
Portion and mutually parallel arrangement of first radiating doublet arm, the second radiating doublet arm, one end connection the first radiation vibration of the feeding portion
The middle part of sub- arm, the other end connect the middle part of the second radiating doublet arm.
4. MIMO omnidirectional terminal dipole antenna as claimed in claim 3, which is characterized in that the first radiating doublet arm, institute
It states the second radiating doublet arm and is symmetrical with the feeding portion.
5. MIMO omnidirectional terminal dipole antenna as described in claim 1, which is characterized in that the dielectric constant of the dielectric-slab is set
It is 4.4 to 4.6, thickness is set as 1.5mm to 3mm.
6. such as MIMO omnidirectional terminal dipole antenna described in any one of claim 1 to 5, which is characterized in that the ground connection oscillator
Arm be set to the dielectric-slab lower end, and it is described ground connection oscillator arms include connect the earth plate grounding parts and connection described in connect
The ground connection dipole element arm in ground portion, the another side that the dielectric-slab corresponds to the grounding parts are equipped with grounded metal band.
7. MIMO omnidirectional terminal dipole antenna as claimed in claim 6, which is characterized in that the dielectric-slab is being equipped with the idol
The face of pole oscillator arms is additionally provided with the microstrip transmission line that the dipole element arm and the feeding point is connected, and the microstrip transmission line
It is locally overlapped between the grounding parts.
8. MIMO omnidirectional terminal dipole antenna as claimed in claim 7, which is characterized in that the microstrip transmission line is equipped with impedance
Transforming section and matching minor matters.
9. MIMO omnidirectional terminal dipole antenna as claimed in claim 6, which is characterized in that two dielectric-slabs are in the ground connection
Inductive component is electrically connected between portion.
10. MIMO omnidirectional terminal dipole antenna as claimed in claim 9, which is characterized in that the Inductive component includes magnet ring
And grounding parts, the other end of one dielectric-slab of one end connection connect the grounding parts of another dielectric-slab, and are wound in
The enameled wire of the magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821536786.9U CN208637603U (en) | 2018-09-19 | 2018-09-19 | A kind of MIMO omnidirectional terminal dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821536786.9U CN208637603U (en) | 2018-09-19 | 2018-09-19 | A kind of MIMO omnidirectional terminal dipole antenna |
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| Publication Number | Publication Date |
|---|---|
| CN208637603U true CN208637603U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821536786.9U Expired - Fee Related CN208637603U (en) | 2018-09-19 | 2018-09-19 | A kind of MIMO omnidirectional terminal dipole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208637603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078457A (en) * | 2021-02-19 | 2021-07-06 | 深圳市信维通信股份有限公司 | Double-frequency double-fed high-gain antenna and electronic equipment |
-
2018
- 2018-09-19 CN CN201821536786.9U patent/CN208637603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078457A (en) * | 2021-02-19 | 2021-07-06 | 深圳市信维通信股份有限公司 | Double-frequency double-fed high-gain antenna and electronic equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |