CN206742495U - Antenna and terminal - Google Patents
Antenna and terminal Download PDFInfo
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- CN206742495U CN206742495U CN201720245311.3U CN201720245311U CN206742495U CN 206742495 U CN206742495 U CN 206742495U CN 201720245311 U CN201720245311 U CN 201720245311U CN 206742495 U CN206742495 U CN 206742495U
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Abstract
The utility model provides a kind of antenna and terminal, wherein, the design of the terminal antenna is as follows：The upper epidermis and layer of dielectric-slab are respectively arranged with metal conducting layer；The metal conducting layer of the upper epidermis is provided with two the first radiation patch, and the first interdigital structure is provided between two first radiation patch；The metal conducting layer of the layer is provided with two the second radiation patch and is connected with the first radiation patch, it is provided between two second radiation patch and is combined into interdigital decoupling arrangements with first interdigital structure with symmetrically arranged second interdigital structure of first interdigital structure, second interdigital structure.Using above-mentioned technical proposal, solve the interference problem brought in correlation technique in multi-antenna transmission data service in small size, improve the radiation efficiency of antenna.
Description
Technical field
The communications field is the utility model is related to, in particular to a kind of antenna and terminal.
Background technology
In the related art, with the rapid development of wireless communication technology, to Large Copacity, high transmission rates and high reliability
Transmission request message more and more higher.MIMO technology arises at the historic moment, and is the important breakthrough of wireless mobile communications field antenna technology, it
The capacity and the availability of frequency spectrum of wireless communication system can be improved with decades of times even hundred times of ground.The technology is that LTE and forth generation move
The core technology of dynamic communication system (4G).It fully develops space resources, is entered in wireless network communication using multiple antenna
The synchronous transmitting-receiving of row, in the case where not increasing bandwidth and antenna transmit power, increase the capacity of communication system, improve communication matter
Amount, increase data transmission rate, improve the availability of frequency spectrum, can be effectively to anti-multipath fading.
MIMO technology requires that multiple antennas synchronizes transmitting-receiving, so it further harshly require that the small-sized of antenna size
Change, it is one small spatially can compatible multiple antennas simultaneously, and require that each antenna has the radio frequency and electromagnetically of balance
While energy, there is high-isolation and low envelope correlation coefficient.Particularly in end product, such as mobile phone, data card, CPE
Deng mimo antenna realizes that difficulty is bigger.
In the related art in order to solve this technical barrier, it is necessary to also need to carry while antenna radiation efficiency is ensured
High isolation between antennae.Realized in correlation technique high-isolation method have it is several：First, it is not similar shape by antenna cell design
Shape simultaneously increases antenna distance；2nd, parasitic conductor is increased；3rd, it is distributed using multilayer radiation patch, reduces coupling；4th, on floor
On open array gap, make current collection, reduce energy flow, so as to reduce coupling；5th, increase network with change antenna feed and
Phase change mutual coupling of antenna；6th, electro-magnetic bandgap EBG structures etc. are introduced.But the above-mentioned various methods in correlation technique are main
Defect includes isolation is not high enough, and bandwidth is narrow, and size is bigger etc..
For the interference problem in correlation technique, brought in multi-antenna transmission data service in small size, do not have also at present
There is effective solution.
The content of the invention
The utility model embodiment provides a kind of antenna and terminal, is detected with least solving traffic failure in correlation technique
The problem of efficiency is low.
According to one embodiment of the present utility model, there is provided a kind of terminal antenna, including：Dielectric-slab；The dielectric-slab
Upper epidermis and layer be respectively arranged with metal conducting layer；The metal conducting layer of the upper epidermis is provided with multiple first radiation
Paster, the first interdigital structure is provided with the interval region between the multiple first radiation patch；The gold of the layer
Category conductive layer is provided with multiple the second radiation patch being connected with the multiple first radiation patch, the multiple second radiation patch
It is provided with interval region between piece and symmetrically arranged second interdigital structure of first interdigital structure, the first interdigital structure
Parallel interdigital decoupling arrangements are combined into the second interdigital structure.
Optionally, the metal conducting layer can be copper clad layers, cover layer gold.
Alternatively, the center in described two first radiation patch sets first interdigital structure.
Alternatively, the center in described two second radiation patch sets second interdigital structure.
Alternatively, second interdigital structure is connected to the floor being arranged in the layer.
Alternatively, the end of second interdigital structure is connected with controllable impedance, wherein, the end of second interdigital structure
Hold as one end away from the floor.
Alternatively, the controllable impedance is set to cover copper.
Alternatively, first radiation patch is connected with second radiation patch by short-circuit post.
Alternatively, it is additionally provided with feed line on the upper epidermis.
Alternatively, the shape of the radiation patch includes one below：Triangle, square, rhombus.
According to another embodiment of the invention, there is provided a kind of terminal, including：End described in any of the above-described embodiment
Hold antenna.
By the utility model, the upper epidermis and layer of the dielectric-slab are respectively arranged with metal conducting layer；The upper epidermis
Metal conducting layer be provided with two the first radiation patch, be provided with the first interdigital knot between two first radiation patch
Structure；The metal conducting layer of the layer is provided with two the second radiation patch being connected with the first radiation patch, second radiation
It is provided between paster and symmetrically arranged second interdigital structure of first interdigital structure, second interdigital structure and first friendship
Refer to structure and be combined into interdigital decoupling arrangements.Solve what is brought in correlation technique in multi-antenna transmission data service in small size
Interference problem, improve the radiation efficiency of antenna.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is according to a kind of schematic diagram of terminal antenna of the present utility model；
Fig. 2 is the top layer figure of high-isolation terminal antenna according to the preferred embodiment of the invention；
Fig. 3 is the bottom figure of high-isolation terminal antenna according to the preferred embodiment of the invention；
Fig. 4 is the top view of high-isolation terminal antenna according to the preferred embodiment of the invention；
Fig. 5 is the side view of high-isolation terminal antenna according to the preferred embodiment of the invention.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not rushing
In the case of prominent, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.
Embodiment one
According to one embodiment of the present utility model, there is provided a kind of terminal antenna, Fig. 1 are according to of the present utility model one
The schematic diagram of kind terminal antenna.Illustrate first, the implication of the attached graph laplacian of the whole in present specification is as follows：" 1 is bottom
The connection inductance of layer；2a is the interdigital shielding wire on top layer；2b is the interdigital shielding wire of bottom；3 be the radiation patch of bottom；4 are
Short-circuit post；5 be the radiation patch on top layer；6 be dielectric-slab；7 be feed line；8 be floor；9 be wireless terminal ".As shown in figure 1,
The terminal antenna includes：Dielectric-slab；The upper epidermis and layer of the dielectric-slab are respectively arranged with metal conducting layer；The upper epidermis
Metal conducting layer is provided with two the first radiation patch, and the first interdigital structure is provided between two first radiation patch；
The metal conducting layer of the layer is provided with two the second radiation patch being connected with first radiation patch, two second spokes
Penetrate between paster be provided with symmetrically arranged second interdigital structure of first interdigital structure, second interdigital structure with this first
Interdigital structure is combined into interdigital decoupling arrangements.You need to add is that the ground away from USB interface in the PCB of data card
Side reserves the layout that one piece of empty regions is used for PCB antenna.Alternatively, metal conducting layer can be copper clad layers.
By the utility model, the upper epidermis and layer of the dielectric-slab are respectively arranged with metal conducting layer；The upper epidermis
Metal conducting layer be provided with two the first radiation patch, be provided with the first interdigital knot between two first radiation patch
Structure；The metal conducting layer of the layer is provided with two the second radiation patch being connected with two first radiation patch, and this two
It is provided between individual second radiation patch and symmetrically arranged second interdigital structure of first interdigital structure.Solves correlation technique
In the interference problem brought in multi-antenna transmission data service in small size, improve the radiation efficiency of antenna.
Alternatively, first interdigital structure is set this two the first radiation patch centers.
Alternatively, second interdigital structure is set this two the second radiation patch centers.
Alternatively, second interdigital structure is connected to the floor being arranged in the layer.
Alternatively, the end of second interdigital structure is connected with controllable impedance, wherein, the end of second interdigital structure is
One end away from the floor.
Alternatively, the controllable impedance is set to cover copper.
Alternatively, first radiation patch is connected with second radiation patch by short-circuit post.
Alternatively, it is additionally provided with feed line on the upper epidermis.
Alternatively, the shape of the radiation patch includes one below：Triangle, square, rhombus.
It is described in detail below in conjunction with preferred embodiment of the present utility model.
A kind of high-isolation miniaturization terminal antenna based on dual-layer Parallel interdigital structure is provided in the utility model, can
Effectively to solve the interference problem brought in multi-antenna transmission data service in small size, radiation efficiency is improved.
It should be noted that two copper clad layers up and down in this preferred embodiment are referred to as top layer and bottom, implication with
Upper epidermis and layer in above-described embodiment are corresponding to difference.
A kind of miniaturization high-isolation terminal antenna is the utility model is related to, including：Dielectric-slab and upper and lower two copper clad layers,
The top layer of the dielectric layer sets feed line and radiation patch copper clad layers, and short-circuit post is loaded with to medium in the radiation patch copper clad layers
The bottom of plate, be interdigital structure among two radiation patch, the bottom of dielectric-slab is arranged to additional radiation patch, by short-circuit post with
The radiation patch on top layer is connected, and is additionally provided with floor, floor connection interdigital structure, and interdigital structure end is loaded with adjustable electric
Sense.
Alternatively, the dielectric-slab both sides are both provided with radiation patch copper clad layers, and the radiation patch copper clad layers are by short-circuit post phase
Even.
Alternatively, the shape of the radiation patch copper clad layers can be triangle, square, rhombus etc..
Alternatively, it is connected with interdigital structure in the floor copper clad layers.
Alternatively, the interdigital structure on the dielectric-slab top layer is parallel to the interdigital structure in the copper clad layers of floor.
Alternatively, the interdigital structure end of the floor copper clad layers is loaded with controllable impedance, and controllable impedance can cover copper, leads to
Overregulate its width and obtain corresponding inductance.
Operation principle of the present utility model is that interdigital decoupling is theoretical：Use dual-layer Parallel interdigital structure between two antennas, four
The interdigital line of/mono- wavelength is equivalent to a reflector between antenna, and the interdigital structure on floor can be in the electric current on floor
A resonance is formed in distribution, blocks the electric current in two antennas face on the ground, so as to realize that two antennas are isolated.In radiating antenna table
Layer, up and down parallel interdigital structure produce the electric current opposite with floor interdigital structure, so as to counteract between two radiation patch
Couple current.In addition, interdigital of the floor level CURRENT DISTRIBUTION that can change low frequency using connection inductance, can make low frequency every
From Du Genggao.By adjusting the length of interdigital structure, so that it is determined that needing the frequency range isolated；The spacing of interdigital structure is adjusted
It is whole, it is possible to achieve higher isolation；The inductance of interdigital structure end is adjusted, the stiffness of coupling of low frequency can be reduced.
This feature is used in the design of antenna, can effectively reduce antenna size, improves the isolation of antenna.
It is the specific embodiment of this preferred embodiment below.
In this specific embodiment, except being related to above-mentioned Fig. 1, the following drawings is also related to：
Fig. 2 is the top layer figure of high-isolation terminal antenna according to the preferred embodiment of the invention；
Fig. 3 is the bottom figure of high-isolation terminal antenna according to the preferred embodiment of the invention；
Fig. 4 is the top view of high-isolation terminal antenna according to the preferred embodiment of the invention；
Fig. 5 is the side view of high-isolation terminal antenna according to the preferred embodiment of the invention.Label in each accompanying drawing with
Label in above-mentioned Fig. 1 is consistent.
As shown in figure 4, a high-isolation terminal using the interdigital coupled structure of dual-layer Parallel that the utility model is related to
The top view of antenna.The antenna includes：Dielectric-slab 6 and upper and lower two copper clad layers, the top layer of the dielectric-slab set feed line 7 and spoke
Paster copper clad layers 5 are penetrated, the bottom that short-circuit post 4 arrives dielectric-slab is loaded with the radiation patch copper clad layers, is among two radiation patch
Interdigital decoupling arrangements 2a, the bottom of medium laminate are arranged to additional radiation patch 3, by short-circuit post 4 and the radiation patch on top layer
5 are connected, and are additionally provided with floor 8, floor connect interdigital decoupling arrangements 2b (it is clear in order to show, only mark 2b position in figure 3
Put), and interdigital decoupling arrangements end is loaded with controllable impedance 1.
The mimo antenna is made up of two full symmetric antennas, and it is fed using micro-strip 7, and impedance is 50 ohm, top layer
Radiation patch 5 radiation patch 3 of bottom is reached by short-circuit post, diamond structure can increase the bandwidth of antenna, and antarafacial
Radiation can reduce couple current between antenna.Employ parallel interdigital coupled structure 2a between two antennas with bottom on top layer
And 2b, quarter-wave interdigital line are equivalent to a reflector between antenna, the interdigital structure of bottom can be on floor
CURRENT DISTRIBUTION in form a resonance, the electric current in two antennas face on the ground is blocked, so as to realize that two antennas are isolated.Top layer
Interdigital structure produces the electric current opposite with floor interdigital structure, so as to counteract the couple current between two radiation patch.It is interdigital
Between connection inductance 1, controllable impedance can cover copper, corresponding inductance be obtained by adjusting its width, so as to change low frequency
CURRENT DISTRIBUTION, the isolation of low frequency can be made higher.By adjusting the length of interdigital structure, so that it is determined that needing the frequency isolated
Section；The spacing of interdigital structure is adjusted, it is possible to achieve higher isolation；The inductance of interdigital structure end is adjusted
It is whole, the stiffness of coupling of low frequency can be reduced.The isolation of low frequency can arrive 15dB, and the isolation of high frequency can arrive 20dB, effectively
The interference problem solved in MIMO multiaerial systems between antenna.
Using the high-isolation antenna described in above-mentioned utility model, there is following distinguishing feature：
1) wireless device includes but is not limited to mobile phone, network interface card, and can also apply can apply the antenna CPE etc. is all
The place of technology；
2) isolation of the mimo antenna is high, strong antijamming capability；
3) antenna size is small, and cost is low, and installation is simple etc..
Embodiment two
A kind of terminal is additionally provided in the present embodiment, including：Terminal antenna described in above-described embodiment 1.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (9)
- A kind of 1. antenna, it is characterised in that including：Dielectric-slab；The upper epidermis and layer of the dielectric-slab are respectively arranged with metal conducting layer；The metal conducting layer of the upper epidermis is set There are two the first radiation patch, the first interdigital structure is provided between described two first radiation patch；The metal conducting layer of the layer is provided with two the second radiation patch being connected with described two first radiation patch, Be provided between described two second radiation patch with symmetrically arranged second interdigital structure of first interdigital structure, wherein, Second interdigital structure is combined into interdigital decoupling arrangements with first interdigital structure.
- 2. antenna according to claim 1, it is characterised in that be all provided with the center of described two first radiation patch Put first interdigital structure.
- 3. antenna according to claim 1, it is characterised in that described two second radiation patch are with the described second interdigital knot Structure is centrosymmetric for symmetrical centre.
- 4. antenna according to claim 1, it is characterised in that second interdigital structure, which is connected to, is arranged at the following table Floor on layer.
- 5. antenna according to claim 4, it is characterised in that the end of second interdigital structure is connected with adjustable electric Sense, wherein, the end of second interdigital structure is one end away from the floor.
- 6. antenna according to claim 5, it is characterised in that the controllable impedance is set to cover copper.
- 7. antenna according to claim 1, it is characterised in that first radiation patch is led to second radiation patch Cross short-circuit post connection.
- 8. antenna according to claim 1, it is characterised in that the shape of the radiation patch includes one below：Three It is angular, square, rhombus.
- A kind of 9. terminal, it is characterised in that including：Antenna any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245311.3U CN206742495U (en) | 2017-03-14 | 2017-03-14 | Antenna and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245311.3U CN206742495U (en) | 2017-03-14 | 2017-03-14 | Antenna and terminal |
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| Publication Number | Publication Date |
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| CN206742495U true CN206742495U (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720245311.3U Active CN206742495U (en) | 2017-03-14 | 2017-03-14 | Antenna and terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616768A (en) * | 2018-12-14 | 2019-04-12 | 深圳市中天迅通信技术股份有限公司 | A kind of antenna structure of mobile phole |
| CN110783706A (en) * | 2019-12-06 | 2020-02-11 | 惠州硕贝德无线科技股份有限公司 | Same-frequency integrated antenna and customer front-end equipment |
| WO2021036312A1 (en) * | 2019-08-23 | 2021-03-04 | 中兴通讯股份有限公司 | Antenna decoupling apparatus, antenna array, and terminal |
| CN115051151A (en) * | 2022-07-12 | 2022-09-13 | 联宝(合肥)电子科技有限公司 | MIMO antenna and electronic equipment |
-
2017
- 2017-03-14 CN CN201720245311.3U patent/CN206742495U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616768A (en) * | 2018-12-14 | 2019-04-12 | 深圳市中天迅通信技术股份有限公司 | A kind of antenna structure of mobile phole |
| WO2021036312A1 (en) * | 2019-08-23 | 2021-03-04 | 中兴通讯股份有限公司 | Antenna decoupling apparatus, antenna array, and terminal |
| CN110783706A (en) * | 2019-12-06 | 2020-02-11 | 惠州硕贝德无线科技股份有限公司 | Same-frequency integrated antenna and customer front-end equipment |
| CN115051151A (en) * | 2022-07-12 | 2022-09-13 | 联宝(合肥)电子科技有限公司 | MIMO antenna and electronic equipment |
| CN115051151B (en) * | 2022-07-12 | 2024-04-19 | 联宝(合肥)电子科技有限公司 | MIMO antenna and electronic equipment |
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