CN206541930U - Minimize defect ground ring-type ultra wide band mimo antenna - Google Patents
Minimize defect ground ring-type ultra wide band mimo antenna Download PDFInfo
- Publication number
- CN206541930U CN206541930U CN201720280286.2U CN201720280286U CN206541930U CN 206541930 U CN206541930 U CN 206541930U CN 201720280286 U CN201720280286 U CN 201720280286U CN 206541930 U CN206541930 U CN 206541930U
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- China
- Prior art keywords
- metal patch
- medium substrate
- wide band
- earth plate
- circular metal
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Abstract
More particularly to a kind of with minimizing defect ring-type ultra wide band mimo antenna of the utility model, circular metal patch and the conductive earth plate installed in medium substrate lower surface including medium substrate, installed in medium substrate upper surface, described circular metal patch is provided with multiple, multiple breach are provided with correspondence annular shape metal patch position so that the bandwidth of operation of conductive earth plate and circular metal patch is coupled on conductive earth plate, rectangular channel is provided between adjacent breach, one end of circular metal patch is electrically connected with conductive earth plate.Circular metal patch can extend the transmission path of surface current, improve the bandwidth of operation of antenna；Super-broadband tech can be realized by allowing the bandwidth of operation of conductive earth plate and circular metal patch to be coupled, the energetic resonance coupled between two neighboring circular metal patch can be radiate by rectangular channel, the isolation between antenna port is greatly improved, strengthens the stability and antijamming capability of Antenna Operation.
Description
Technical field
The utility model is related to microwave radio antenna technical field, more particularly to a kind of with minimizing defect ring-type ultra wide band
Mimo antenna.
Background technology
With developing rapidly for China's radiotechnics, message capacity, ultra wide band skill are improved to meet communication need
Art is because having the advantages that frequency spectrum resource is abundant, transmission rate is fast, be widely used strong antijamming capability.But because of ultra wide band skill
The low limitation of the power output of art, causes transmission range near, therefore proposes multiple-input and multiple-output (MIMO) technology, and the technology has
Strong antijamming capability, strengthens total transmission power.Super-broadband tech (UWB) and MIMO technique (MIMO) are combined
Come, make full use of the multipath in space so that multiple signals parallel transmission, obtain obvious diversity gain and spatial multiplexing gain, with
Realize that signal stablizes transmission at a distance.At present, mimo antenna narrow bandwidth, larger volume is the main cause for limiting its development.
Utility model content
The purpose of this utility model is to provide a kind of high isolation, small volume and with wide miniaturization defect ground ring-type
Ultra wide band mimo antenna.
To realize object above, the technical solution adopted in the utility model is：A kind of with minimizing defect ring-type ultra wide band
Mimo antenna, including medium substrate, the circular metal patch installed in medium substrate upper surface and installed in medium substrate
The conductive earth plate of lower surface, described circular metal patch is provided with multiple, correspondence annular shape metal on conductive earth plate
Multiple breach are provided with patch location so that the bandwidth of operation of conductive earth plate and circular metal patch is coupled, it is adjacent
Rectangular channel is provided between breach, one end of circular metal patch is electrically connected with conductive earth plate.
Compared with prior art, there is following technique effect in the utility model：Circular metal patch can extend surface
The transmission path of electric current, improves the bandwidth of operation of antenna；Allow the bandwidth of operation phase coupling of conductive earth plate and circular metal patch
Conjunction can realize super-broadband tech, and rectangular channel can give off the energetic resonance coupled between two neighboring circular metal patch
Go, greatly improve the isolation between antenna port, strengthen the stability and antijamming capability of Antenna Operation.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model；
Fig. 2 is input S parameter simulation result of the present utility model；
Fig. 3 is interport isolation simulation result of the present utility model；
Fig. 4 a-4d are the new E faces of this practicality and H surface radiation directional diagrams.
Embodiment
With reference to Fig. 1 to Fig. 4, the utility model is described in further detail.
Refering to Fig. 1, one kind miniaturization defect ground ring-type ultra wide band mimo antenna, including medium substrate 10, installed in medium
The circular metal patch 20 of the upper surface of substrate 10 and the conductive earth plate 30 installed in the lower surface of medium substrate 10, it is described
Circular metal patch 20 is provided with multiple, is provided with conductive earth plate 30 at correspondence annular shape metal patch 20 position multiple
Breach 31 causes the bandwidth of operation of conductive earth plate 30 and circular metal patch 20 to be coupled, and is set between adjacent breach 31
There is rectangular channel 32, one end of circular metal patch 20 is electrically connected with conductive earth plate 30.Circular metal patch 20 can prolong
The transmission path of long surface current, improves the bandwidth of operation of antenna；Allow the work of conductive earth plate 30 and circular metal patch 20
Super-broadband tech can be realized by being coupled as bandwidth, and rectangular channel 32 will can be coupled between two neighboring circular metal patch 20
Energetic resonance is radiate, and greatly improves the isolation between antenna port, strengthens the stability of Antenna Operation and anti-interference
Ability.In order to allow people preferably to see structure in Fig. 1, conductive earth plate 30 and medium substrate 10 are released states,
And thickeied for relatively thin part, conveniently see.
Here the shape and size of breach 31 can have a variety of, as long as can meet " so that conductive earth plate 30 and annular shape
The bandwidth of operation of metal patch 20 is coupled " this condition.In the present embodiment, described breach 31 to be circular or square or
Arch door shape, arch door shape be a rectangle and with the rectangle wherein while being the semicircular combination of diameter, the circular center of circle or side
The center of shape or the semicircular center of circle match with the center of circular metal patch 20.Breach is set on conductive earth plate 30
After 31, conductive earth plate 30 can approximately regard a circular loop antenna as, the bandwidth of operation phase with circular metal patch 20
Coupling, so as to realize super-broadband tech.
It is previously mentioned, rectangular channel 32 can radiate the energetic resonance coupled between two neighboring circular metal patch 20
Go out, in order to improve in radiation effect, the present embodiment preferably, the described outside of rectangular channel 32 is additionally provided with U-type groove 33.In square
The outside of shape groove 32 is set after U-type groove 33, can be very good to improve radiation effect, is further enhanced the stability of antenna and is resisted dry
Disturb ability.
In order to easily connect circular metal patch 20 and conductive earth plate 30 and SAM adapter assemblies, the present embodiment
In preferably, described circular metal patch 20 is C-shaped and two ends of c-type are outside parallel to the width of medium substrate 10
Extend on the long side of medium substrate 10, two are formed between circular 20 two terminations of metal patch and conductive earth plate 30
Covered with rectangular metal paster 40 on individual face, one of face, another face is used to install SAM adapter assemblies.
In order to preferably illustrate the utility model, below exemplified by being provided with the antenna of two circular metal patches 20
It is described in detail.
Specifically, the described length-width ratio of medium substrate 10 is 2:1, two annulus are symmetrically set with medium substrate 10
Shape metal patch 20；Conductive earth plate 30 matches with the size of medium substrate 10, correspondence annular shape metal on conductive earth plate 30
It is etched between two arch door shapes and two arch door shapes being etched with a rectangular channel 32 and a U-type groove 33 at the position of paster 20,
Here arch door shape, rectangular channel 32 and U-type groove 33 is more convenient to be processed by the way of etching, so.Two annular shapes
Metal patch 20 is left and right arrangement herein, can be that the mode of multiple rows of multiple row is arranged if the comparison set is more.
Preferably, described medium substrate 10 be high-frequency microwave plate, the long 60mm of medium substrate 10, width 30mm, thickness 1.6mm,
Its dielectric constant is that 4.4, dielectric loss angle tangent value is 0.02.The length of the rectangular channel 32 is that 22mm, width are 2mm, U-shaped
The length of groove 33 is that 14.5mm, width are 0.5mm.The terminations of described two circular metal patches 20 and conductive earth plate 30 it
Between form four faces, the width in four faces is 1mm, is highly equal to the thickness of medium substrate 10, from the central shaft of medium substrate 10 compared with
Two near faces are used to cover rectangular metal paster 40 at a distance of 26mm, from two faces of the central shaft of medium substrate 10 farther out apart
32mm is used to install SAM adapter assemblies.
Working frequency (using -10dB as standard) of the present utility model in 3.8GHz between 12.2GHz, with a width of 8.4
G, relative bandwidth is 105%.The standard feature impedance of SAM adapter assemblies 5 is ohm, in order to have good impedance with antenna
Match somebody with somebody, reduce reflectance factor.
As shown in Fig. 2 the reflectance factor of the utility model entry port, to the S11 parameters in figure, the work frequency of the antenna
Rate is between 3.8GHz-12.2GHz, corresponding reflectance factor is less than below -10dB interval, meets antenna industry standard design
Demand.
As shown in figure 3, the transmission coefficient of the utility model port 1 to port 2, corresponding between port 1 and port 2 every
From degree, the mimo antenna is passive symmetrical device, then the transmission coefficient of port 2 to port 1 is roughly the same.In operation interval, end
The transmission coefficient of mouth is respectively less than below -15dB, therefore has good isolation between port.
As shown in Fig. 4 a-4b, the antenna pattern in E faces and H faces of the present utility model respectively broadband 5GHz, 8GHz,
On tetra- frequencies of 10GHz, 11.5GHz, with good directionality.With the change of working frequency, radiation direction is not sent out
Raw big change, therefore the antenna has good engineering application value.
Claims (8)
1. a kind of with minimizing defect ring-type ultra wide band mimo antenna, it is characterised in that：Including medium substrate (10), installed in Jie
The circular metal patch (20) and the conductive earth plate installed in medium substrate (10) lower surface of matter substrate (10) upper surface
(30), described circular metal patch (20) is provided with multiple, correspondence annular shape metal patch on conductive earth plate (30)
(20) multiple breach (31) are provided with position and cause conductive earth plate (30) and the bandwidth of operation of circular metal patch (20)
It is coupled, rectangular channel (32), one end of circular metal patch (20) and conductive earthing is provided between adjacent breach (31)
Plate (30) is electrically connected.
2. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 1, it is characterised in that：Described breach
(31) be circular or square or arch door shape, arch door shape be a rectangle and with the rectangle wherein while being semicircular group of diameter
Close, the circular center of circle or square center or the semicircular center of circle match with the center of circular metal patch (20).
3. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 2, it is characterised in that：Described rectangular channel
(32) outside is additionally provided with U-type groove (33).
4. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 3, it is characterised in that：Described annular shape
Metal patch (20) is C-shaped and two ends of c-type extend out to medium substrate parallel to the width of medium substrate (10)
(10) on long side, two faces are formed between circular (20) two terminations of metal patch and conductive earth plate (30), its
In on a face covered with rectangular metal paster (40), another face is used to install SAM adapter assemblies.
5. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 4, it is characterised in that：Described medium base
Plate (10) length-width ratio is 2:1, two circular metal patches (20) are symmetrically set with medium substrate (10)；Conductive earthing
Plate (30) matches with medium substrate (10) size, is lost on conductive earth plate (30) at correspondence annular shape metal patch (20) position
It is carved between two arch door shapes and two arch door shapes and is etched with a rectangular channel (32) and a U-type groove (33).
6. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 5, it is characterised in that：Described medium base
Plate (10) is high-frequency microwave plate, and medium substrate (10) long 60mm, width 30mm, thickness 1.6mm, its dielectric constant are 4.4, dielectric loss
Angle tangent value is 0.02.
7. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 5, it is characterised in that：The rectangular channel
(32) length is that 22mm, width are 2mm, and the length of U-type groove (33) is that 14.5mm, width are 0.5mm.
8. with minimizing defect ring-type ultra wide band mimo antenna as claimed in claim 5, it is characterised in that：Described two annulus
Four faces are formed between the termination of shape metal patch (20) and conductive earth plate (30), the width in four faces is 1mm, is highly equal to
The thickness of medium substrate (10), two faces nearer from medium substrate (10) central shaft are used to cover rectangular metal patch at a distance of 26mm
Piece (40), is used to install SAM adapter assemblies from two faces of medium substrate (10) central shaft farther out at a distance of 32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720280286.2U CN206541930U (en) | 2017-03-22 | 2017-03-22 | Minimize defect ground ring-type ultra wide band mimo antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720280286.2U CN206541930U (en) | 2017-03-22 | 2017-03-22 | Minimize defect ground ring-type ultra wide band mimo antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206541930U true CN206541930U (en) | 2017-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720280286.2U Expired - Fee Related CN206541930U (en) | 2017-03-22 | 2017-03-22 | Minimize defect ground ring-type ultra wide band mimo antenna |
Country Status (1)
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|---|---|
| CN (1) | CN206541930U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832287A (en) * | 2018-06-20 | 2018-11-16 | 袁涛 | Three frequency range WiFi antennas |
| CN111725625A (en) * | 2020-05-13 | 2020-09-29 | 中国地质大学（武汉） | Dual-band Wi-Fi antenna designed based on multi-target evolution algorithm |
| CN113300105A (en) * | 2021-04-29 | 2021-08-24 | 郑州中科集成电路与信息系统产业创新研究院 | Ultra-wideband multiple-input multiple-output antenna with high isolation |
-
2017
- 2017-03-22 CN CN201720280286.2U patent/CN206541930U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832287A (en) * | 2018-06-20 | 2018-11-16 | 袁涛 | Three frequency range WiFi antennas |
| CN108832287B (en) * | 2018-06-20 | 2020-03-31 | 袁涛 | Three-frequency-band WiFi antenna |
| CN111725625A (en) * | 2020-05-13 | 2020-09-29 | 中国地质大学（武汉） | Dual-band Wi-Fi antenna designed based on multi-target evolution algorithm |
| CN111725625B (en) * | 2020-05-13 | 2021-06-25 | 中国地质大学（武汉） | Dual-band Wi-Fi antenna designed based on multi-target evolution algorithm |
| CN113300105A (en) * | 2021-04-29 | 2021-08-24 | 郑州中科集成电路与信息系统产业创新研究院 | Ultra-wideband multiple-input multiple-output antenna with high isolation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20180322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |