CN104868235B - Stacked antenna structure and antenna - Google Patents
Stacked antenna structure and antenna Download PDFInfo
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- CN104868235B CN104868235B CN201510170603.0A CN201510170603A CN104868235B CN 104868235 B CN104868235 B CN 104868235B CN 201510170603 A CN201510170603 A CN 201510170603A CN 104868235 B CN104868235 B CN 104868235B
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Abstract
The invention discloses a kind of stacked antenna structure and antenna.Stacked antenna structure includes upper layer medium substrate, interlayer substrate, layer dielectric substrate and the reflecting plate set gradually, wherein：The upper surface of upper layer medium substrate is provided with parasitic patch；Interlayer substrate is arranged at intervals with upper layer medium substrate, radiation patch is provided with the upper surface of interlayer substrate, lower surface is integrally attached with the first metal ground plane；The upper surface of layer dielectric substrate is close to set with the lower surface of interlayer substrate, and the lower surface of layer dielectric substrate is provided with feed structure, and upper surface is integrally attached with the second metal ground plane, wherein, feed structure is connected with radiation patch by metal probe；And reflecting plate is located at the lower face side of layer dielectric substrate, there is air layer with layer dielectric substrate interval.By the present invention, performance and the technical problem of thickness requirement can not be taken into account by solving antenna.
Description
Technical field
The present invention relates to field of antenna, in particular to a kind of stacked antenna structure and antenna.
Background technology
In various wireless devices, antenna is a very important part, and its major function is to wireless communication
Number transmitting and reception.And with the continuous development of antenna technology, for radiance, receptivity and the U.S. of antenna in itself
Sight has higher requirement.
5GHz frequency ranges be it is international exempt from licensed band, substantial amounts of wireless device in the frequency range be present, and all kinds of
Wireless device is due to the limitation of its size, it may be desirable to the size of antenna is further compressed, while also needs to ensure very well
Antenna performance.But existing antenna is unable to reach preferable antenna performance (such as relative bandwidth) in thinner thickness；
When antenna has higher performance, its thickness is often thicker.Therefore, existing antenna can not expire when meeting thickness requirement
The requirement of sufficient antenna performance, again can not thickness thinning when meeting performance requirement.
The problem of can not taking into account performance and thickness requirement for antenna of the prior art, effective solution is not yet proposed at present
Certainly scheme.
The content of the invention
The embodiments of the invention provide a kind of stacked antenna structure and antenna, with least solve antenna can not take into account performance and
The technical problem of thickness requirement.
One side according to embodiments of the present invention, there is provided a kind of stacked antenna structure, including the upper strata set gradually
Medium substrate, interlayer substrate, layer dielectric substrate and reflecting plate, wherein：The upper surface of the upper layer medium substrate is set
It is equipped with parasitic patch；The interlayer substrate is arranged at intervals with the upper layer medium substrate, in the interlayer base
The upper surface of plate is provided with radiation patch, and lower surface is integrally attached with the first metal ground plane；The layer dielectric substrate it is upper
Surface is close to set with the lower surface of the interlayer substrate, and the lower surface of the layer dielectric substrate is provided with feed knot
Structure, upper surface are integrally attached with the second metal ground plane, wherein, the feed structure and the radiation patch pass through metal probe
Connection；And the reflecting plate is located at the lower face side of the layer dielectric substrate, is had time with the layer dielectric substrate interval
Gas-bearing formation.
Further, the thickness of the air layer between the reflecting plate and the layer dielectric substrate is 2.0-2.1mm.
Further, the electric size of the radiation patch is 0.389286-0.475794.
Further, the electric size of the parasitic patch is 0.3384225-0.4136275.
Further, it is provided with air blanketing between the upper layer medium substrate and the interlayer substrate.
Further, the electric size of the height of the air blanketing is 0.023643027-0.028897033.
Further, the first non-metallic via, the layer dielectric substrate are provided with the interlayer substrate
On be provided with the second non-metallic via, the circle weight of the first non-metallic via and the second non-metallic via
Close, and the first non-metallic via corresponds with the described second non-metallic via.
Further, the stacked antenna also includes：Metal probe, through the described first non-metallic via and described
Two non-metallic vias, one end are welded with the radiation patch, and other end is welded with the feed structure, wherein, the gold
The length for belonging to probe is equal to the thickness sum of the interlayer substrate and the layer dielectric substrate.
Further, the first circular protection band, the first circular protection band are provided with first metal ground plane
Overlapped with the center of circle of the non-metallic via on the interlayer substrate, for preventing first metal ground plane short
Road；The second circular protection band, the second circular protection band and the layer dielectric are provided with second metal ground plane
The center of circle of non-metallic via on substrate overlaps, for preventing the second metal ground plane short circuit.
Further, the center alignment of the radiation patch and the parasitic patch is set.
Further, the upper layer medium substrate, the interlayer substrate, the layer dielectric substrate and described anti-
Plate is penetrated by plastic nut with screw rod to be connected.
Further, the reflecting plate is aluminium sheet.
Another aspect according to embodiments of the present invention, a kind of stacked antenna is additionally provided, including：Any one above-mentioned multilayer
Antenna structure, it is characterised in that the thickness of the stacked antenna is less than or equal to 7mm.
Further, the relative bandwidth of the stacked antenna is 12.5-13.5%.
In embodiments of the present invention, using set gradually upper layer medium substrate, interlayer substrate, layer dielectric base
Plate and reflecting plate, wherein：The upper surface of upper layer medium substrate is provided with parasitic patch；Interlayer substrate and top dielectric base
Plate is arranged at intervals, and radiation patch is provided with the upper surface of interlayer substrate, lower surface is integrally attached with the first metal and connect
Stratum；The upper surface of layer dielectric substrate is close to set with the lower surface of interlayer substrate, the following table of layer dielectric substrate
Face is provided with feed structure, and upper surface is integrally attached with the second metal ground plane, wherein, feed structure and radiation patch pass through gold
Belong to probe connection；And reflecting plate is located at the lower face side of layer dielectric substrate, there is air layer with layer dielectric substrate interval, lead to
Cross and be separately positioned on radiation patch and feed structure on two adjacent medium substrates, feed structure can be reduced radiation is pasted
The influence of piece, so as to improve the cross-polarization performance of antenna.Meanwhile reflecting plate is provided with below feed structure so that
Antenna obtains preferably front and rear ratio, and the interval between upper layer medium substrate and interlayer substrate is less than prior art
Interval, also just reduces the integral thickness of stacked antenna, it is achieved thereby that taking into account the technique effect of performance and thickness, and then solves
Antenna can not take into account performance and the technical problem of thickness requirement.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the explosive view of stacked antenna structure according to embodiments of the present invention；
Fig. 2 is the top view of stacked antenna according to embodiments of the present invention；
Fig. 3 is the upward view of stacked antenna according to embodiments of the present invention；
Fig. 4 is the short side side view of stacked antenna according to embodiments of the present invention；And
Fig. 5 is the schematic diagram of the long side side view of stacked antenna according to embodiments of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
The embodiments of the invention provide a kind of stacked antenna.The thickness of the stacked antenna is less than or equal to 7mm, in 5125MHz-
Relative bandwidth is 13% in the range of 5850MHz, and prior art is when antenna thickness is less than or equal to 7mm, and relative bandwidth only has
5%；When reaching relative bandwidth 13%, thickness can be more than 12mm.It can be seen that stacked antenna provided in an embodiment of the present invention can be same
When meet relatively thin antenna thickness and larger relative bandwidth, in the premise for the directional emission performance high-gain that ensure that antenna
Under, the thickness of antenna is reduced as far as possible, and it is frivolous to realize built-in aerial, high performance demand.
The stacked antenna of the present embodiment includes following stacked antenna structures, and Fig. 1 shows the stacked antenna knot of the present embodiment
The explosive view of structure.As shown in figure 1, the stacked antenna structure includes upper layer medium substrate 10, the interlayer base set gradually
Plate 30, layer dielectric substrate 50 and reflecting plate 70.The upper surface of upper layer medium substrate 10 is provided with parasitic patch 102；Intermediate layer
Medium substrate 30 is arranged at intervals with upper layer medium substrate 10, and the upper surface of interlayer substrate 30 is provided with radiation patch
302, lower surface is integrally attached with the first metal ground plane；The upper surface of layer dielectric substrate 50 and interlayer substrate 30
Lower surface is close to set, and the lower surface of layer dielectric substrate 50 is provided with feed structure, and upper surface is integrally attached with the second metal
Ground plane, wherein, feed structure (not shown) and radiation patch 302 are connected by metal probe 40；And reflecting plate 70
Positioned at the lower face side of layer dielectric substrate 50, there is air layer 60 with the interval of layer dielectric substrate 50.In interlayer substrate
30 and layer dielectric substrate 50 on be provided with multiple non-metallic vias, wherein, first set on interlayer substrate 30
The the second non-metallic via circular hole set on non-metallic via and layer dielectric substrate 50 overlaps, and the first non-metallic mistake
Hole corresponds with the second non-metallic via.Metal probe 40 can pass through the first non-metallic of interlayer substrate 30
Second non-metallic via of via and layer dielectric substrate 50, and one end of metal probe 40 and interlayer substrate 30
On radiation patch welding, the feed structure on other end and layer dielectric substrate 50 welds, and forms feed radiation path.Its
In, the length of metal probe 40 is equal to the thickness sum of interlayer substrate 30 and layer dielectric substrate 50, interlayer
First metal ground plane of the lower surface of substrate 30 attachment and the second metal ground plane of the upper surface of underlying mechanisms substrate 50 attachment are tight
Patch.In order to prevent metal probe and the first metal ground plane and the second metal ground plane short circuit, in the first metal ground plane and
Circular protection band, isolating metal probe and metal ground plane are set on two metal ground planes so that metal probe is through first
Avoided when non-metallic via and the second non-metallic via and the first metal ground plane and the short circuit of the second metal ground plane.
It is separately positioned on due to radiation patch 302 and feed structure on two adjacent medium substrates, feed can be reduced
Influence of the structure to radiation patch, so as to improve the cross-polarization performance of antenna.Meanwhile it is provided with below feed structure
Reflecting plate 70, the reflecting plate 70 can be aluminium sheets, have air layer, reflecting plate 70 between reflecting plate 70 and layer dielectric substrate 50
The thickness of air layer between layer dielectric substrate is 2.0-2.1mm so that antenna obtains preferably front and rear compare.Prior art
The thickness of the air layer is usually a quarter of wavelength, and the size in 5GHz frequency ranges is 9.5mm, it is seen that The present invention reduces
The integral thickness of stacked antenna.
Alternatively, upper layer medium substrate 10, interlayer substrate 30, layer dielectric substrate 50 and reflecting plate 70 pass through modeling
Material nut is connected with screw rod.Air blanketing 20 is provided between upper layer medium substrate 10 and interlayer substrate 30, it is optional
Ground, the electric size scope of the thickness of the air blanketing is 0.023643027-0.028897033.Preferably, the air blanketing
The electric size of thickness is 0.02627003.
Alternatively, one or more parasitic patch 102 are provided with upper layer medium substrate 10, parasitic patch 102 is just
It is square；One or more radiation patch 302 are provided with interlayer substrate 30, radiation patch 302 is also square, is posted
Raw paster 102 and radiation patch 302, which correspond, to be set, and the center alignment of radiation patch 302 and parasitic patch 102 is set
Put.
Alternatively, the electric size of radiation patch is 0.389286-0.475794.Preferably, the electric size of radiation patch 302
For 0.43254.
Alternatively, the electric size of parasitic patch is 0.3384225-0.4136275.Preferably, the electric chi of parasitic patch 102
Very little is 0.376025.
Fig. 2 is the top view of stacked antenna according to embodiments of the present invention.Fig. 2 shows the multilayer day of the embodiment of the present invention
Plastic screw 80, parasitic patch 102 and the reflecting plate 70 of line.Mounting hole (white circular hole shown in Fig. 2) on reflecting plate 70
The stacked antenna can be fixed with installing the outer cover of this antenna.
Fig. 3 is the upward view of stacked antenna according to embodiments of the present invention.Wiring hole 90 is provided with the reflecting plate 70,
One end of the wiring hole 90 is connected with feed structure, and other end can connect other equipment.
Fig. 4 is the short side side view of stacked antenna according to embodiments of the present invention.The test chart is the test with the elevation angle
Figure, shows four parasitic patch 102 shown in Fig. 1, radiation patch 302.The electric size of radiation patch 302 is pasted slightly larger than parasitic
The electric size of piece 102, and the center alignment of radiation patch 302 and parasitic patch 102.In upper layer medium substrate 10 and intermediate layer
There is air blanketing 20 between medium substrate 30, air layer 60 is provided between layer dielectric substrate 50 and reflecting plate 70, there is modeling
Multiple medium substrates are fixedly connected by material screw rod 80 with reflecting plate, form stacked antenna structure.Meanwhile in interlayer substrate
Metal ground plane 40 is attached with 30 lower surface and the whole of the upper surface on layer dielectric substrate 50, passes through metal probe
(Fig. 4 is not shown) connects interlayer substrate 30 and layer dielectric substrate 50 so that the gold on two medium substrates
Category basalis is close to, and connects 30 radiation patch 302 and layer dielectric base on interlayer substrate by metal probe
Feed structure on plate 50, form feed radiation path.The parasitic patch 102 and antenna house set in upper layer medium substrate 10
The distance of (not shown) can narrow down to 1mm, can reduce the volume for the equipment for installing the stacked antenna.
Fig. 5 is the schematic diagram of the long side side view of stacked antenna according to embodiments of the present invention.Fig. 5 is corresponding with Fig. 1
The schematic diagram of the side view of stacked antenna, in order to clearly show the long side side view of stacked antenna, Fig. 5 only shows schematically two
The structure of individual parasitic patch.It should be noted that the stacked antenna in the present embodiment can include one or more parasitism patch
Piece, accordingly, the stacked antenna can include one or more radiation patch.
The antenna of the embodiment of the present invention realizes low section characteristic, and 12.5-13.5% work is obtained in 5GHz frequency ranges
While frequency band, cross polarization discrimination is>32dB, 15dB is required more than common engineering；Interport isolation is less than -35dB, leads to
Normal engine request is -30dB；The front and rear ratio of the present embodiment antenna is more than 16dB, and gain is 13dB.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (13)
- A kind of 1. stacked antenna structure, it is characterised in that including set gradually upper layer medium substrate, interlayer substrate, Layer dielectric substrate and reflecting plate, wherein：The upper surface of the upper layer medium substrate is provided with parasitic patch；The interlayer substrate is arranged at intervals with the upper layer medium substrate, in the upper surface of the interlayer substrate Radiation patch is provided with, lower surface is integrally attached with the first metal ground plane；The upper surface of the layer dielectric substrate is close to set with the lower surface of the interlayer substrate, the layer dielectric The lower surface of substrate is provided with feed structure, and upper surface is integrally attached with the second metal ground plane, wherein, the feed structure and The radiation patch is connected by metal probe；AndThe reflecting plate is located at the lower face side of the layer dielectric substrate, has air layer with the layer dielectric substrate interval；Wherein, the first non-metallic via is provided with the interlayer substrate, is provided with the layer dielectric substrate The circular coincidence of second non-metallic via, the first non-metallic via and the second non-metallic via, and first Non-metallic via corresponds with the described second non-metallic via.
- 2. stacked antenna structure according to claim 1, it is characterised in that the reflecting plate and the layer dielectric substrate Between the thickness of air layer be 2.0-2.1mm.
- 3. stacked antenna structure according to claim 1, it is characterised in that the electric size of the radiation patch is 0.389286-0.475794。
- 4. stacked antenna structure according to claim 1, it is characterised in that the electric size of the parasitic patch is 0.3384225-0.4136275。
- 5. stacked antenna structure according to claim 1, it is characterised in that the upper layer medium substrate and the intermediate layer Air blanketing is provided between medium substrate.
- 6. stacked antenna structure according to claim 5, it is characterised in that the electric size of the height of the air blanketing is 0.023643027-0.028897033。
- 7. stacked antenna structure according to claim 1, it is characterised in that the stacked antenna also includes：Metal probe, through the described first non-metallic via and the second non-metallic via, one end is pasted with the radiation Piece is welded, and other end is welded with the feed structure, wherein, the length of the metal probe is equal to the interlayer base The thickness sum of plate and the layer dielectric substrate.
- 8. stacked antenna structure according to claim 1, it is characterised in that is provided with first metal ground plane One circular protection band, the first circular protection band and the center of circle weight of the non-metallic via on the interlayer substrate Close, for preventing the first metal ground plane short circuit；The second circular protection band, institute are provided with second metal ground plane The center of circle that the second circular protection band is stated with the non-metallic via on the layer dielectric substrate overlaps, for preventing described second Metal ground plane short circuit.
- 9. stacked antenna structure according to claim 1, it is characterised in that the radiation patch and the parasitic patch Center alignment is set.
- 10. stacked antenna structure according to claim 1, it is characterised in that the upper layer medium substrate, the intermediate layer Medium substrate, the layer dielectric substrate are connected with the reflecting plate by plastic nut with screw rod.
- 11. stacked antenna structure according to claim 1, it is characterised in that the reflecting plate is aluminium sheet.
- 12. a kind of stacked antenna, including the stacked antenna structure in claim 1 to 11 described in any one, it is characterised in that The thickness of the stacked antenna is less than or equal to 7mm.
- 13. stacked antenna according to claim 12, it is characterised in that the relative bandwidth of the stacked antenna is 12.5- 13.5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170603.0A CN104868235B (en) | 2015-04-10 | 2015-04-10 | Stacked antenna structure and antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170603.0A CN104868235B (en) | 2015-04-10 | 2015-04-10 | Stacked antenna structure and antenna |
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| Publication Number | Publication Date |
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| CN104868235A CN104868235A (en) | 2015-08-26 |
| CN104868235B true CN104868235B (en) | 2018-01-02 |
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| CN201510170603.0A Active CN104868235B (en) | 2015-04-10 | 2015-04-10 | Stacked antenna structure and antenna |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972270A (en) * | 2016-01-14 | 2017-07-21 | 北京佰才邦技术有限公司 | Multi-beam perimeter array antenna and phase distribution system of selection |
| CN106252860A (en) * | 2016-08-31 | 2016-12-21 | 重庆大学 | The multi-layer PCB little Huygens's source antenna of electricity |
| KR102031203B1 (en) * | 2019-03-20 | 2019-10-11 | 동우 화인켐 주식회사 | Antenna laminate and image display device including the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280718A (en) * | 2011-04-29 | 2011-12-14 | 上海交通大学 | Ku waveband low-profile dual-frequency dual-polarization array antenna |
| CN203733946U (en) * | 2014-01-20 | 2014-07-23 | 苏州市吴通天线有限公司 | High-gain dual polarized antenna |
-
2015
- 2015-04-10 CN CN201510170603.0A patent/CN104868235B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280718A (en) * | 2011-04-29 | 2011-12-14 | 上海交通大学 | Ku waveband low-profile dual-frequency dual-polarization array antenna |
| CN203733946U (en) * | 2014-01-20 | 2014-07-23 | 苏州市吴通天线有限公司 | High-gain dual polarized antenna |
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| CN104868235A (en) | 2015-08-26 |
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Address after: 100080 9th and 10th floors, building 1, zone 1, No. 81, Beiqing Road, Haidian District, Beijing Patentee after: Beijing baicaibang Technology Co.,Ltd. Address before: 100080 the 10 floor of block B, Ding Hao Electronics Building, 3 Haidian Avenue, Haidian District, Beijing. Patentee before: Beijing Bai Caibang Technology Co.,Ltd. |