CN103296391B - Antenna device - Google Patents
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- CN103296391B CN103296391B CN201210050439.6A CN201210050439A CN103296391B CN 103296391 B CN103296391 B CN 103296391B CN 201210050439 A CN201210050439 A CN 201210050439A CN 103296391 B CN103296391 B CN 103296391B
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Abstract
An antenna device comprises a medium substrate, a first antenna unit and a second antenna unit, wherein the medium substrate comprises a first surface and a second surface opposite to the first surface, the first antenna unit comprises a first metal structure arranged on the medium substrate, and the second antenna unit comprises a second metal structure arranged on the medium substrate. Based on the principle of manual electromagnetic materials, a plurality of the antenna units can be arranged on the medium substrate with a small area, the isolation among antennas is improved at the same time, wireless equipment with high throughput is further satisfied, and the technical bottleneck of a single antenna is broken through.
Description
Technical field
The present invention relates to field of wireless communication, more particularly, it relates to a kind of day based on meta-material principle design is traditional thread binding
Put.
Background technology
It is growing with wireless communication technology, wireless telecommunications electronic equipment is made while carrying out multiple different frequency range communications
Demand increasingly strengthens.Existing wireless telecommunications electronic equipment typically adopts many radio-frequency antennas.But the size of these antenna, band
The important indicators such as width, gain but receive the restriction (gain margin, bandwidth limit under fixed dimension etc.) of basic physical principle.
The ultimate principle of these index limit causes the miniaturization technology difficulty of antenna considerably beyond other devices, and due to radio-frequency (RF) device
The complexity of the electromagnetic field analysis of part, approaching these ultimate values all becomes huge technological challenge.Such as, traditional terminal is led to
Letter antenna is based primarily upon electric monopole or the radiation theory of dipole is designed, the most frequently used planar inverted-F antenna (PIFA).Pass
Direct and antenna the size positive correlation of Radiation work frequency of system antenna, the area positive correlation of bandwidth and antenna so that antenna
Design generally needs the physical length of half-wavelength.
In some increasingly complex electronic systems, antenna needs multimode operation, it is necessary to outside feed antenna forehead
Impedance matching network is designed.But the extra feeder line that increased electronic system of impedance matching network is designed, increases radio system
Area simultaneously matching network also introduces many energy losses, it is difficult to meet the requirement of system design of low-power consumption.In system
It is often comparatively very limited to the space of antenna setting during wireless system design, with the communication information stream of modern comfort
The increase of amount, the requirement that cannot meet existing equipment of single antenna, hence with multiple antennas this bottleneck can be solved, but many
Antenna is arranged at one, antenna is interfered, and isolation is very low.
The content of the invention
The technical problem to be solved in the present invention is to break through the framework of traditional antenna design, and when multiple antennas one is arranged at
Body, reduces and multiple antennas is interfered, and improves isolation to meet radio-based electronic devices requirement.Therefore, the present invention is provided
A kind of antenna assembly designed based on meta-material principle.
A kind of antenna assembly includes：
One medium substrate, including first surface and the second surface relative with first surface；
First antenna unit, including one first metal structure being arranged on the medium substrate；And
Second antenna element, including one second metal structure being arranged on the medium substrate.
Further, the first antenna unit also includes the first feeder line, the first ground unit, the second ground unit and the
Three ground units；First metal structure, the first feeder line, the first ground unit and the second ground unit are arranged at medium substrate
First surface；3rd ground unit is arranged at the second surface of medium substrate.
Further, it is provided with plated through-hole on first ground unit, the second ground unit and the 3rd ground unit.
Further, second antenna element also includes the second feeder line, the 5th ground unit and the 6th ground unit, institute
State the first surface that the second metal structure, the second feeder line and the 5th ground unit are arranged at medium substrate；6th ground unit sets
It is placed in the second surface of medium substrate.
Further, it is provided with plated through-hole on the 5th ground unit and the 6th ground unit.
Further, the first antenna unit also includes the 4th ground unit and coaxial cable.
Further, first metal structure and second metal structure include split ring resonator metal structure.
Further, first metal structure is identical with second metal structure.
Further, first metal structure and second metal structure are differed.
Further, first metal structure and second metal structure include what derivative, compound or group battle array was obtained
The metal structure of similar function.
Hinge structure, based on artificial electromagnetic material principle so that arrange multiple on the less medium substrate of area
Antenna element, while by improving isolation between multiple antennas, further meeting the wireless device of high-throughput, breaches Dan Tian
The technical bottleneck of line.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described：
Fig. 1 is the top view on relative two surfaces of inventive antenna device；
Fig. 2 is the first antenna cell floor plan of antenna assembly shown in Fig. 1；
Fig. 3 is the second antenna element plane graph of antenna assembly shown in Fig. 1；
Fig. 4 is the back side top view of antenna assembly shown in Fig. 1；
Fig. 5 a are a kind of split ring resonator metal structure plane graph that electromagenetic wave radiation receiving unit of the present invention is included；
Fig. 5 b are a kind of complementary metal structural plan figure of split ring resonator metal structure shown in Fig. 5 a；
Fig. 6 a are a kind of helix metal structure plane graph that electromagenetic wave radiation receiving unit of the present invention is included；
Fig. 6 b are a kind of complementary metal structural plan figure of helix metal structure shown in Fig. 6 a；
Fig. 7 a are a kind of plane graph of folding line metal structure that electromagenetic wave radiation receiving unit of the present invention is included；
Fig. 7 b are a kind of complementary metal structural plan figure of folding line metal structure shown in Fig. 7 a；
Fig. 8 a are a kind of plane graph of opening helical ring metal structure that electromagenetic wave radiation receiving unit of the present invention is included；
Fig. 8 b are a kind of complementary metal structural plan figure of opening helical ring metal structure shown in Fig. 8 a；
Fig. 9 a are a kind of dual openings helical ring metal structure plane graph that electromagenetic wave radiation receiving unit of the present invention is included；
Fig. 9 b are a kind of complementary metal structural plan figure of dual openings helical ring metal structure shown in Fig. 9 a；
Figure 10 is the derivative schematic diagram of split ring resonator metal structure geometry shown in Fig. 5 a；
Figure 11 is the derivative schematic diagram of geometry in complementary split ring resonator metal structure shown in Fig. 5 b；
Figure 12 is the derivative schematic diagram of complementary split ring resonator metal structure shown in Fig. 5 b；
Figure 13 a are that three complementary split ring resonator metal structures shown in Fig. 5 b are compound derivative to be obtained a kind of metal structure and puts down
Face figure；
Figure 13 b are a kind of complementary metal structure plane graph of metal structure shown in Figure 13 a；
Figure 14 is schematic diagram of the antenna assembly shown in Fig. 1 comprising a fly line；
Figure 15 is metal structure enlarged diagram shown in Fig. 5 a.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be further described：
Fig. 1 is referred to, is the top view on relative two surfaces of inventive antenna device.The antenna assembly includes a medium
Substrate 5 and the antenna element 20 of first antenna unit 10 and second being arranged on the surface of the medium substrate 5.The medium substrate
5 include first surface 11 and the second surface 21 relative with first surface 11.The antenna element 20 of first antenna unit 10 and second
Include plural resonance band, in inventive antenna device 2.4GHz is accomplished that (comprising 2.38GHz-2.49GHz)
With two frequency ranges of 5.8GHz (including 4.9GHz-5.9GHz).Antenna assembly is applied to various wireless communication apparatus, including but do not limit
2.4GHz and 5.8GHz is worked in wireless data card, wireless router, mobile phone, blue-tooth device and WIFI wireless base stations etc. are various
Electronic equipment.
Fig. 2 and Fig. 4 is seen also, is the first antenna cell floor plan of antenna assembly.The first antenna unit 10
It is single including one first metal structure 111, the second feeder line 112, the first ground unit 113, the second ground unit 114 and the 3rd ground connection
Unit 115.First metal structure 111, the second feeder line 112, the first ground unit 113 and the second ground unit 114 are arranged at
The first surface 11 of medium substrate 5；3rd ground unit 115 is arranged at the second surface 21 of medium substrate 5.First ground connection
Plated through-hole 115 is provided with unit 113, the second ground unit 114 and the 3rd ground unit 115.The plated through-hole 115 is used
In first ground unit 113, the second ground unit 114 and the 3rd ground unit 115 are connected as a single entity, be formed at relative to
First metal structure 111 is publicly.In the present embodiment, the split ring resonator metal structure of first metal structure 111 is (such as
Shown in Fig. 5 a).Figure 14 is seen also, in the present embodiment, the first antenna unit 10 also includes the 4th ground unit 119
With coaxial cable 90, in order that electric feed signal is accessed from the same side of the antenna element 20 of first antenna unit 10 and second.
Fig. 3 and Fig. 4 is seen also, is the second antenna element plane graph of antenna assembly.Second antenna element 10
Including one second metal structure 211, the second feeder line 212, the 5th ground unit 126 and the 6th ground unit 118.Second gold medal
Category structure 211, the second feeder line 212 and the 5th ground unit 126 are arranged at the first surface 11 of medium substrate 5；6th ground connection is single
Unit 118 is arranged at the second surface 21 of medium substrate 5.Metal is provided with 5th ground unit 126 and the 6th ground unit 118
Change hole 115.The plated through-hole 115 is used to that the 5th ground unit 126 and the 6th ground unit 118 to be connected as a single entity, shape
Cheng Yu relative to the second metal structure 211 publicly.Wherein described 5th ground unit 126 it is symmetrical be distributed in the second feeder line
212 both sides.In the present embodiment, the split ring resonator metal structure (as shown in Figure 5 a) of second metal structure 211.At other
In embodiment, first metal structure 111 and second metal structure 211 are differed, and differ refer to metal here
The shape of structure, size (including overall length d of metal structure, the interval S between width w and metal structure line and line these
Parameter) and while metal structure connects up and to form number of turns g of helix and differ.It is understood that the first metal knot
Structure 111 can be with identical with second metal structure 211.
Above-mentioned metal structure 111,211 is designed based on artificial electromagnetic material principle art, and artificial electromagnetic material is referred to
Sheet metal is engraved into into the topological metal structure of given shape, and the topological metal structure of the given shape is arranged at necessarily
The equivalent extraordinary electromagnetic material of processing and manufacturing on dielectric constant and pcrmeability base material, its performance parameter depends primarily on its sub- ripple
The topological metal structure of long given shape.In resonance band, artificial electromagnetic material generally embodies the dispersion characteristics of height, changes
Yan Zhi, perceptual, the equivalent dielectric constant of the impedance of antenna, appearance and pcrmeability can occur violent change with frequency.Thus can
The fundamental characteristics of above-mentioned antenna is transformed using artificial electromagnetic material technology so that the medium base that metal structure is depended on it
Plate equally constitutes a highly dispersed extraordinary electromagnetic material, the new antenna abundant so as to realize radiation characteristic.It is described
Metal structure can be using 3-D solid structure or planar structure (planar structure is also referred to as metal pattern).
In the present embodiment, the metal structure 111,211 is axisymmetric plane tabular foil.Wherein metal
Structure 6 is copper or thin slice made by ag material.Preferably copper, cheap, conducts electricity very well.In order to realize more preferable impedance
Match somebody with somebody, metal structure 12 is also copper and silver combination.
In order to meet a day line development design requirement, metal structure of different shapes is developed to adapt to Antenna Design demand,
Metal structure of different shapes shown in Fig. 5 to Fig. 9 is refer to, these described metal structures are using in various artificial electromagnetic materials
Metal structure and its derived structure.As the metal structure can select complementary split ring resonator metal structure (such as Fig. 5 a, 5b
It is shown), i.e., the shape of two kinds of metal structures forms complementation as shown in Fig. 5 a, 5b.This kind of design is equivalent to and increased antenna physical
Length (physical length size does not increase), can so cause antenna exploitation to be conducive to miniaturization.
Metal structure shown in Fig. 5 a and 5b mutually forms a pair complementary split ring resonator metal structures.The metal knot
Structure also can select a pair complementary helix metal structures as shown in figure 6 a and 6b, as illustrated in figs. 7 a and 7b a pair it is complementary
Folding line metal structure, as shown in figs. 8 a and 8b a pair complementary opening helical ring metal structures and as illustrated in figures 9 a and 9b
A pair complementary dual openings helical ring metal structures.
The metal structure of inventive antenna device can be by the structure of one or more in metal structure shown in Fig. 5 to Fig. 9
Derived, be combined or organized the metal structure of the similar function that battle array is obtained.Derivative to be divided into two kinds, one kind is that geometry derives,
Another kind is that extension is derivative.Geometry herein is derivative to refer to that function is similar to, variform structure derives, such as by square frame
The derivative open curve metal structure of class formation, open-delta metal structure, opening polygon metal structure and other are different
Polygon class formation, by taking the opening resonance metal ring structure shown in Fig. 5 a as an example, Figure 10 is the derivative schematic diagram of its geometry.By
As a example by opening resonance metal ring structure as shown in by Fig. 5 b, Figure 11 is the derivative schematic diagram of its geometry.Except above two from
Outside geometrically deriving, also include extending derivative to metal structure itself, metal deriving mode shown in Figure 12 is refer to, to scheme
Opening resonance metal ring structure shown in 5b extends deriving mode to carry out itself.
The derivative complex superposition mutual i.e. on the basis of the metal structure of Fig. 5 to Fig. 9 of extension of the present invention forms metal knot
Structure；Herein compound refers to that at least two metal structure complex superposition as shown in Figures 5 to 9 form a composition metal knot
Structure.Composite metal structures as depicted in fig. 13 a be by three as shown in Figure 5 b complementary split ring resonator metal structure be combined it is embedding
Set is formed.So as to obtain a kind of complementary composite metal structures (as illustrated in fig. 13b) by metal structure as depicted in fig. 13 a.
Refer to Figure 15, the metal structure schematic diagram of inventive antenna device.According to based on artificial electromagnetic material principle
During the antenna assembly of the design present invention, by adjusting overall length d of metal structure, between width w and metal structure line and line
Interval S these parameters, while metal structure connects up number of turns g to form helix, number of turns g of the helix described in Fig. 5 is 2.
By adjusting above-mentioned parameter come design object antenna so that the parameter for affecting antenna assembly is optimized.In addition, antenna assembly
The length of feeder line, width, the size of ground unit are also the parametric variable for developing designing antenna, therefore according to the humorous of target
The antenna such as frequency range, directivity, gain index of shaking adjusts above-mentioned parameter, to realize target antenna performance indications, in order to further contract
The volume of miniature antenna, by constantly regulate above-mentioned parameter, the target of designing antenna.
Based on artificial electromagnetic material principle so that arrange multiple antenna elements on the less medium substrate of area, while
By improving isolation between multiple antennas, the wireless device of high-throughput is further met, breach the technical bottleneck of single antenna.
Embodiments of the invention are described above in conjunction with accompanying drawing, but be the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned specific embodiment is only schematic, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (6)
1. a kind of antenna assembly, it is characterised in that include：One medium substrate, including first surface and relative with first surface
Second surface；First antenna unit, including one first metal structure being arranged on the medium substrate；And the second antenna list
Unit, including one second metal structure being arranged on the medium substrate；The first antenna unit also include the first feeder line, the
One ground unit, the second ground unit and the 3rd ground unit；First metal structure, the first feeder line, the first ground unit
And second ground unit be arranged at the first surface of medium substrate；3rd ground unit is arranged at the second surface of medium substrate,
Plated through-hole, second antenna element are provided with first ground unit, the second ground unit and the 3rd ground unit
Also include the second feeder line, the 5th ground unit and the 6th ground unit, second metal structure, the second feeder line and the 5th ground connection
Unit is arranged at the first surface of medium substrate；6th ground unit is arranged at the second surface of medium substrate, and the described 5th connects
Plated through-hole is provided with ground unit and the 6th ground unit.
2. antenna assembly according to claim 1, it is characterised in that the first antenna unit also includes that the 4th ground connection is single
Unit and coaxial cable.
3. antenna assembly according to claim 1, it is characterised in that first metal structure and second metal are tied
Structure includes split ring resonator metal structure.
4. antenna assembly according to claim 1, it is characterised in that first metal structure and second metal are tied
Structure is identical.
5. antenna assembly according to claim 1, it is characterised in that first metal structure and second metal are tied
Structure is differed.
6. antenna assembly according to claim 1, it is characterised in that first metal structure and second metal are tied
Structure includes the metal structure of the similar function that derivative, compound or group battle array is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050439.6A CN103296391B (en) | 2012-02-29 | 2012-02-29 | Antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050439.6A CN103296391B (en) | 2012-02-29 | 2012-02-29 | Antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103296391A CN103296391A (en) | 2013-09-11 |
| CN103296391B true CN103296391B (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210050439.6A Active CN103296391B (en) | 2012-02-29 | 2012-02-29 | Antenna device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769182B (en) * | 2012-07-03 | 2015-03-25 | 深圳公众信息技术有限公司 | Metamaterial antenna and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913224A (en) * | 2005-08-09 | 2007-02-14 | 技嘉科技股份有限公司 | Circuit board antenna |
| EP1892796A1 (en) * | 2006-08-24 | 2008-02-27 | M/A-Com, Inc. | Multi section meander antenna |
| CN201319408Y (en) * | 2008-12-23 | 2009-09-30 | 启碁科技股份有限公司 | Double antenna module and electronic device with double antenna module |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3640595B2 (en) * | 2000-05-18 | 2005-04-20 | シャープ株式会社 | Multilayer pattern antenna and wireless communication apparatus including the same |
| CN103022650B (en) * | 2011-08-10 | 2015-04-29 | 深圳光启创新技术有限公司 | 2.4 GHz/5.8 GHz dual-frequency wireless communication device |
-
2012
- 2012-02-29 CN CN201210050439.6A patent/CN103296391B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913224A (en) * | 2005-08-09 | 2007-02-14 | 技嘉科技股份有限公司 | Circuit board antenna |
| EP1892796A1 (en) * | 2006-08-24 | 2008-02-27 | M/A-Com, Inc. | Multi section meander antenna |
| CN201319408Y (en) * | 2008-12-23 | 2009-09-30 | 启碁科技股份有限公司 | Double antenna module and electronic device with double antenna module |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
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| Publication number | Publication date |
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| CN103296391A (en) | 2013-09-11 |
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Effective date of registration: 20210419 Address after: 518057 2 / F, software building, No.9, Gaoxin Middle Road, Nanshan District, Shenzhen, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518034. A, 18B, CIC international business center, 1061 Mei Xiang Road, Shenzhen, Guangdong, Futian District Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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