CN207967298U - Array for mobile digital TV divides shape graphene antenna structure - Google Patents
Array for mobile digital TV divides shape graphene antenna structure Download PDFInfo
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- CN207967298U CN207967298U CN201721652954.6U CN201721652954U CN207967298U CN 207967298 U CN207967298 U CN 207967298U CN 201721652954 U CN201721652954 U CN 201721652954U CN 207967298 U CN207967298 U CN 207967298U
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Abstract
The utility model provides a kind of array point shape graphene antenna structure for mobile digital TV, including film matrix and the Propagating Tree Fractal array radiation patch being covered on the film matrix front, the aerial array that Propagating Tree Fractal array radiation patch is made of Propagating Tree fractal dipole miniature antenna according to rectangular array structural arrangement.Array-element antenna has prodigious bandwidth of operation.Multiple Propagating Tree fractal dipole array-element antennas form aerial array according to rectangular array structural arrangement, and the radiation of multiple array-element antennas is superimposed, makes array antenna while having larger bandwidth of operation and stronger radiation intensity.Using polyethylene terephthalate thin film matrix as antenna host material, graphene conductive ink printed antenna radiation patch is used simultaneously, it ensure that antenna has excellent physical mechanical property, it can be worked normally within the scope of larger temperature, there can be reliable and stable working performance under working environment outdoors with oil resistant, resistance to diluted acid, resistance to diluted alkaline, corrosion-resistant.
Description
Technical field
The utility model belongs to field of antenna, and in particular to a kind of array for mobile digital TV divides shape graphene day
Cable architecture.
Background technology
Mobile digital TV is the brand new technical of mobile internet era, be may be implemented in the vehicle of various fast runnings
It watches DTV, and video on demand, TV shopping, publicity popularization, telereference, interactive trip is carried out by DTV channel
The business such as play.Mobile digital TV has covered the multiple main cities in the whole nation, in public transport and private car extensively
General use becomes the generally acknowledged New Media with larger impact power.
Antenna Design and manufacturing technology are one of the core key technologies of mobile digital TV system, and the performance of antenna is very big
Ground affects the working performance and application field of mobile digital TV system.It is divided, is based on according to the frequency range of International Telecommunication Union
The mobile digital TV frequency range of satellite transmission is 11.700~12.200 GHz.Mobile digital TV antenna must be completely covered
11.700~12.200 ghz bands, and meet that mobile digital TV system signal is stable, receives that rapid, picture is clear, mobile
Property equal by force require.Mobile digital TV system is mainly used in various vehicles, and working environment is complex, it is a variety of can not be pre-
The probability to work under the adverse circumstances known is higher, and this requires mobile digital TV antennas to have excellent physical mechanical property,
There is preferable corrosion resistance, there is preferable high- and low-temperature resistance performance, there is under working environment reliable and stable workability outdoors
Energy.
Propagating Tree fractal dipole antenna is a kind of dipole antenna based on Propagating Tree fractal structure, has fractal structure
Self-similarity, per " growth " once, high band will more resonance frequency points, multiple works being closer to of an antenna
Make that frequency range is superposed on one another, larger working frequency range can be obtained.Using Propagating Tree fractal dipole antenna as array-element antenna, according to
Rectangular array structural arrangement forms aerial array, can allow the radiation phase of array-element antenna while retaining larger bandwidth of operation
Superposition, enhances the radiation intensity of antenna.
Polyethylene terephthalate（Polyethylene Terephthalate, PET）Film matrix is a kind of performance
Highly stable antenna host material, can be with oil resistant, resistance to diluted acid, resistance to diluted alkaline, resistance to most of solvents, can be at -70 DEG C to 150 DEG C
Normal work in temperature range, and very little is influenced on its mechanical performance when high and low temperature.Use polyethylene terephthalate thin film
Matrix is as antenna host material, it is ensured that antenna all has stable working performance under various adverse circumstances.
The high-performance conductive ink that graphene conductive ink is made of graphene conductive filler, adhesive, solvent.Graphite
The mono-layer graphite that alkene is made of carbon atom has extraordinary thermal conductivity, electrical conductance, translucency, and has high intensity, surpasses
The characteristics such as frivolous, super large surface area.Graphene has very high electron mobility, can accommodate the very high radio-frequency current of intensity,
Using graphene as conductive ink made of conductive filler, it is lighter than traditional metallic conductive fillers drop mass, cost is lower,
Conductivity higher, heat resistance are more preferable.
Invention content
The purpose of this utility model is to provide a kind of small size, broadband, has excellent physical mechanical property, outdoors
There is reliable and stable working performance under working environment, 11.700~12.200 GHz works of mobile digital TV can be completely covered
Make frequency range, there is the array point shape graphene antenna structure for mobile digital TV of larger performance redundancy.
To achieve the above object, the utility model uses following technical scheme：A kind of array for mobile digital TV
Divide shape graphene antenna structure comprising film matrix and the Propagating Tree Fractal array radiation being covered on the film matrix front
Patch, the Propagating Tree Fractal array radiation patch is by Propagating Tree fractal dipole miniature antenna according to rectangular array structural arrangement group
At aerial array.
In one embodiment of the utility model, the Propagating Tree fractal dipole miniature antenna is by a symmetrical electrode couple
Sub- arm is constituted；Open gap is offered in symmetrical center line between dipole arm；Each dipole arm is by distributing point and growth
A tree point shape irradiation structure is formed；It is equipped with distributing point in the both sides of open gap.
Further, the Propagating Tree divides Propagating Tree fractal structure of the shape irradiation structure using at least 3 ranks.
In one embodiment of the utility model, the Propagating Tree Fractal array radiation patch uses rectangular array structure conduct
Basic array arrangement.
Further, the basic array arrangement includes at least 8 rows 8 and arranges totally 64 small days of Propagating Tree fractal dipole
Line.
In one embodiment of the utility model, the film matrix is polyethylene terephthalate thin film matrix.
In one embodiment of the utility model, the shape of the film matrix is rectangle.
In one embodiment of the utility model, the film matrix arranges totally 64 zonules by least 8 rows 8 and forms.
Further, the relative dielectric constant of each film matrix zonule along film matrix length and width both direction gradually
Become；The zonule of relative dielectric constant minimum is located at the film matrix upper left corner；The maximum zonule of relative dielectric constant is located at thin
The membrane matrix lower right corner；The relative dielectric constant of each film matrix zonule is gradual according to sequence from left to right, from top to bottom
Increase, the difference of the relative dielectric constant of two neighboring film matrix zonule is 0.1.
In one embodiment of the utility model, the Propagating Tree Fractal array radiation patch is printed by graphene conductive ink
It forms.
The utility model uses Propagating Tree fractal dipole antenna as array-element antenna, the self-similarity of high-order fractal structure
Make array-element antenna that there is prodigious bandwidth of operation.Multiple Propagating Tree fractal dipole array-element antennas are according to rectangular array structural arrangement
Form aerial array, the radiation of multiple array-element antennas is superimposed, make array antenna and meanwhile have larger bandwidth of operation and relatively by force
Radiation intensity.Using polyethylene terephthalate thin film matrix as antenna host material, while using graphene conductive
Ink printed antenna radiation patch ensure that antenna has excellent physical mechanical property, can be within the scope of larger temperature just
Often work can have reliable and stable working performance outdoors with oil resistant, resistance to diluted acid, resistance to diluted alkaline, corrosion-resistant under working environment.
Description of the drawings
Fig. 1 a to 1d are the iterative process schematic diagram of the Propagating Tree fractal structure of one embodiment of the utility model.Wherein Fig. 1 a
It is respectively 0 rank Propagating Tree fractal structure, 1 rank Propagating Tree fractal structure, 2 rank Propagating Tree fractal structures, 3 rank Propagating Trees point to 1d
Shape structure.
Fig. 2 is the structural schematic diagram of the Propagating Tree fractal dipole miniature antenna of one embodiment of the utility model.
Fig. 3 is the structural schematic diagram of the Propagating Tree Fractal array radiation patch of one embodiment of the utility model.
Fig. 4 is the structural schematic diagram of the film matrix of one embodiment of the utility model.
Fig. 5 is return loss (S11) performance map of one embodiment of the utility model.
Specific implementation mode
Explanation is further explained to the utility model in the following with reference to the drawings and specific embodiments.
A kind of array for mobile digital TV divides shape graphene antenna structure comprising film matrix and is covered in this
Propagating Tree Fractal array radiation patch on film matrix front, the Propagating Tree Fractal array radiation patch divide shape by Propagating Tree
The aerial array that dipole miniature antenna is formed according to rectangular array structural arrangement.
In one embodiment of the utility model, the Propagating Tree fractal dipole miniature antenna is by a symmetrical electrode couple
Sub- arm is constituted；Open gap is offered in symmetrical center line between dipole arm；Each dipole arm is by distributing point and growth
A tree point shape irradiation structure is formed；It is equipped with distributing point in the both sides of open gap.
Further, the Propagating Tree divides Propagating Tree fractal structure of the shape irradiation structure using at least 3 ranks.
In one embodiment of the utility model, the Propagating Tree Fractal array radiation patch uses rectangular array structure conduct
Basic array arrangement.
Further, the basic array arrangement includes at least 8 rows 8 and arranges totally 64 small days of Propagating Tree fractal dipole
Line.
In one embodiment of the utility model, the film matrix is polyethylene terephthalate thin film matrix.
In one embodiment of the utility model, the shape of the film matrix is rectangle.
In one embodiment of the utility model, the film matrix arranges totally 64 zonules by least 8 rows 8 and forms.
Further, the relative dielectric constant of each film matrix zonule along film matrix length and width both direction gradually
Become；The zonule of relative dielectric constant minimum is located at the film matrix upper left corner；The maximum zonule of relative dielectric constant is located at thin
The membrane matrix lower right corner；The relative dielectric constant of each film matrix zonule is gradual according to sequence from left to right, from top to bottom
Increase, the difference of the relative dielectric constant of two neighboring film matrix zonule is 0.1.
In one embodiment of the utility model, the Propagating Tree Fractal array radiation patch is printed by graphene conductive ink
It forms.
The utility model is related to Propagating Tree fractal structure iterative process as shown in Fig. 1 a to 1d of Figure of description,
Middle Fig. 1 a to 1d are respectively 0 rank Propagating Tree fractal structure, 1 rank Propagating Tree fractal structure, 2 rank Propagating Tree fractal structures, the life of 3 ranks
Long tree fractal structure.Its prototype structure is that dipole antenna is respectively grown using two dipole arms as " trunk " on its top
Two, perpendicular to dipole arm, " branch " that length is dipole arm half, constitute 1 rank Propagating Tree fractal structure；It is grown in 1 rank
4 " branch " tops of tree fractal structure respectively grow two " twig " perpendicular to " branch ", length for " branch " half,
Constitute 2 rank Propagating Tree fractal structures；8 " twig " tops of 2 rank Propagating Tree fractal structures respectively grow two perpendicular to
" twig ", length are " micro- branch " of " twig " half, constitute 3 rank Propagating Tree fractal structures.Continue according to the method
High-order Propagating Tree fractal structure then can be obtained in iteration.
The structure of Propagating Tree fractal dipole miniature antenna is as shown in Fig. 2 of Figure of description.It is specific in the utility model one
In embodiment, size is ± 0.1 mm of ± 0.1 mm of mm × 1.1 of 1.1 mm.
Propagating Tree fractal dipole miniature antenna is made of symmetrical a pair of of dipole arm, and each dipole arm is by feeding
Point and Propagating Tree minute shape irradiation structure are formed.Between a pair of of dipole arm of each Propagating Tree fractal dipole miniature antenna
Symmetrical center line on offer open gap, the both sides of open gap be equipped with antenna feed point.
Preferably, Propagating Tree divides Propagating Tree fractal structure of the shape irradiation structure using at least 3 ranks.
The structure of Propagating Tree Fractal array radiation patch uses rectangular array structure as shown in Fig. 3 of Figure of description
As basic array arrangement, which includes at least 8 rows 8 and arranges totally 64 small days of Propagating Tree fractal dipole
Line.
The bandwidth of operation of single Propagating Tree fractal dipole antenna is although larger, but radiation intensity is weaker, multiple growths
It sets fractal dipole antenna and forms aerial array according to rectangular array structural arrangement, their radiation can be allowed superimposed, into one
The radiation intensity of step enhancing antenna.
The film matrix is polyethylene terephthalate（PET）Film matrix.
The shape of the film matrix is preferably rectangle, and in specific embodiment, size is ± 0.1 mm × 8.8 8.8 mm
± 0.1 mm of mm, thickness are ± 0.01 mm of 0.2 mm.
The structure of the film matrix arranges totally 64 zonule groups as shown in Fig. 4 of Figure of description, by least 8 rows 8
At the relative dielectric constant of some zonule of digital representation in Fig. 4.The relative dielectric constant of each film matrix zonule along
Film matrix length and width both direction gradual change；The zonule of relative dielectric constant minimum is located at the film matrix upper left corner, opposite to be situated between
Electric constant is 3.5；The maximum zonule of relative dielectric constant is located at the film matrix lower right corner, relative dielectric constant 4.9；Often
The relative dielectric constant of a film matrix zonule is gradually increased according to sequence from left to right, from top to bottom, two neighboring thin
The difference of the relative dielectric constant of membrane matrix zonule is 0.1.
After this novel thin film matrix being used in array antenna design, the matrix relative dielectric constant of each array-element antenna
It is different from, therefore the working frequency points of each array-element antenna are different.When the working frequency points of different array-element antennas are closer to, it
Radiation and working band can be overlapped mutually, form a radiation intensity and all larger working band of bandwidth of operation, to
Improve the radiance and bandwidth performance of array antenna.
The aerial radiation patch is printed by graphene conductive ink.The printing made using graphene conductive ink
Antenna does not have metal in radiation patch, is not easy to be corroded in outdoor working environment, has very high job stability.
Fig. 5 of Figure of description gives return loss (S11) performance map of the utility model specific embodiment.From Fig. 5
It is found that measured result is shown, the operating center frequency of this antenna is 12.000 GHz, antenna operating band is 10.841~
14.136 GHz, bandwidth of operation are 3.295 GHz, and relative bandwidth 26.38%, return loss minimum value is -32.45 dB.It is real
It surveys the results show that this antenna completely covers mobile digital TV system working frequency range, is a small size, broadband, collection
At the mobile digital TV antenna of change, it disclosure satisfy that mobile digital TV system signal is stable, covering is extensive, it is rapid to receive, draw
The requirements such as face is clear, mobility is strong can ensure the biography of mobile digital TV signals under a variety of unpredictable adverse circumstances
Transmission quality is expected to be used widely in mobile digital TV equipment.
The utility model uses Propagating Tree fractal dipole antenna as array-element antenna, the self-similarity of high-order fractal structure
Make array-element antenna that there is prodigious bandwidth of operation.Multiple array-element antennas form aerial array, battle array according to rectangular array structural arrangement
The radiation of first antenna is superimposed, makes array antenna while having larger bandwidth of operation and stronger radiation intensity, antenna have compared with
Big performance redundancy can ensure the transmission quality of mobile digital TV signals under a variety of unpredictable adverse circumstances.Make
It uses the polyethylene terephthalate thin film matrix with tapered dielectric constants characteristic as antenna host material, uses graphene
Conductive ink makes aerial radiation structure, ensure that antenna has excellent physical mechanical property, has under working environment outdoors
There is reliable and stable working performance.
Antenna measured result shows that the operating center frequency of this antenna is 12.000 GHz, and antenna operating band is
10.841~14.136 GHz, bandwidth of operation be 3.295 GHz, relative bandwidth 26.38%, return loss minimum value be-
32.45 dB.Measured result shows that this antenna completely covers mobile digital TV system working frequency range.
Compared with for the conventional aerial of mobile digital TV system, this antenna has the advantages that prominent and significant effect
Fruit：For this antenna in the case where possessing 64 array-element antennas, size is only the mm of mm × 0.2 of 8.8 mm × 8.8, is a micro-
Type ultrathin antenna can be put into various mobile digital TV equipment.This antenna has excellent physical mechanical property, can
It is worked normally within the temperature range of -70 DEG C to 150 DEG C, it can be with oil resistant, resistance to diluted acid, resistance to diluted alkaline, corrosion-resistant, in outdoor environment
With reliable and stable working performance.This Antenna Operation bandwidth is up to 3.295 GHz, and return loss minimum value is down to -32.45
DB completely covers mobile digital TV system working frequency range, and has larger performance redundancy.
It is the preferred embodiment of the utility model above, it is all to change according to made by technical solutions of the utility model, it is produced
Function without departing from technical solutions of the utility model range when, belong to the scope of protection of the utility model.
Claims (10)
1. a kind of array for mobile digital TV divides shape graphene antenna structure, it is characterised in that：Including film matrix and
The Propagating Tree Fractal array radiation patch being covered on the film matrix front, the Propagating Tree Fractal array radiation patch is by giving birth to
The aerial array that long tree fractal dipole miniature antenna is formed according to rectangular array structural arrangement.
2. the array according to claim 1 for mobile digital TV divides shape graphene antenna structure, it is characterised in that：
The Propagating Tree fractal dipole miniature antenna is made of symmetrical a pair of of dipole arm；Symmetrical centre between dipole arm
Open gap is offered on line；Each dipole arm is made of distributing point and Propagating Tree point shape irradiation structure；In open gap
Both sides be equipped with distributing point.
3. the array according to claim 2 for mobile digital TV divides shape graphene antenna structure, it is characterised in that：
The Propagating Tree divides Propagating Tree fractal structure of the shape irradiation structure using at least 3 ranks.
4. the array according to claim 1 for mobile digital TV divides shape graphene antenna structure, it is characterised in that：
The Propagating Tree Fractal array radiation patch uses rectangular array structure as basic array arrangement.
5. the array according to claim 4 for mobile digital TV divides shape graphene antenna structure, it is characterised in that：
The basic array arrangement includes at least 8 rows 8 and arranges totally 64 Propagating Tree fractal dipole miniature antennas.
6. divide shape graphene antenna structure according to any arrays for mobile digital TV of claim 1-5, it is special
Sign is：The film matrix is polyethylene terephthalate thin film matrix.
7. divide shape graphene antenna structure according to any arrays for mobile digital TV of claim 1-5, it is special
Sign is：The shape of the film matrix is rectangle.
8. divide shape graphene antenna structure according to any arrays for mobile digital TV of claim 1-5, it is special
Sign is：The film matrix arranges totally 64 zonules by least 8 rows 8 and forms.
9. the array according to claim 8 for mobile digital TV divides shape graphene antenna structure, it is characterised in that：
The relative dielectric constant of each film matrix zonule is along film matrix length and width both direction gradual change；Relative dielectric constant is most
Small zonule is located at the film matrix upper left corner；The maximum zonule of relative dielectric constant is located at the film matrix lower right corner；Each
The relative dielectric constant of film matrix zonule is gradually increased according to sequence from left to right, from top to bottom, two neighboring film
The difference of the relative dielectric constant of matrix zonule is 0.1.
10. the array according to claim 1 for mobile digital TV divides shape graphene antenna structure, feature to exist
In：The Propagating Tree Fractal array radiation patch is printed by graphene conductive ink.
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| CN201721652954.6U CN207967298U (en) | 2017-12-01 | 2017-12-01 | Array for mobile digital TV divides shape graphene antenna structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728434A (en) * | 2019-01-24 | 2019-05-07 | 厦门大学嘉庚学院 | The more gap Fractal array ultra-wide band antennas of diamond shape |
| CN109728432A (en) * | 2019-01-24 | 2019-05-07 | 厦门大学嘉庚学院 | The rectangular gap Fractal array ultra-wide band antenna of gradual change |
| CN109768376A (en) * | 2019-01-24 | 2019-05-17 | 厦门大学嘉庚学院 | Butterfly gap Fractal array ultra-wide band antenna |
-
2017
- 2017-12-01 CN CN201721652954.6U patent/CN207967298U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728434A (en) * | 2019-01-24 | 2019-05-07 | 厦门大学嘉庚学院 | The more gap Fractal array ultra-wide band antennas of diamond shape |
| CN109728432A (en) * | 2019-01-24 | 2019-05-07 | 厦门大学嘉庚学院 | The rectangular gap Fractal array ultra-wide band antenna of gradual change |
| CN109768376A (en) * | 2019-01-24 | 2019-05-17 | 厦门大学嘉庚学院 | Butterfly gap Fractal array ultra-wide band antenna |
| CN109728434B (en) * | 2019-01-24 | 2020-12-25 | 厦门大学嘉庚学院 | Rhombus multi-gap fractal array ultra-wideband antenna |
| CN109728432B (en) * | 2019-01-24 | 2021-01-29 | 厦门大学嘉庚学院 | Gradual change square gap fractal array ultra wide band antenna |
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Granted publication date: 20181012 Termination date: 20201201 |
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