CN205595445U - Compound fractal mobile communication antenna of cantor - ming kefusiji - Google Patents
Compound fractal mobile communication antenna of cantor - ming kefusiji Download PDFInfo
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- CN205595445U CN205595445U CN201620359342.7U CN201620359342U CN205595445U CN 205595445 U CN205595445 U CN 205595445U CN 201620359342 U CN201620359342 U CN 201620359342U CN 205595445 U CN205595445 U CN 205595445U
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- cantor
- minkowski
- fractal
- mobile communication
- antenna
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Abstract
The utility model relates to a cantor the compound fractal mobile communication antenna of ming kefusiji, it includes base plate, antenna grounding board and radiation paster, the antenna grounding board is laminated respectively on the two sides of base plate with the radiation paster, the antenna grounding board is the all -metal ground structure, is the radiation paster the cantor the compound fractal structure of ming kefusiji. The utility model provides an enough cover the fourth completely for mobile communication TD the cantor of 2570MHz~the 2620MHz frequency channel of LTE standard and 3300~3400MHz candidate frequency channel of the 5th take the place of mobile communication the compound fractal mobile communication antenna of ming kefusiji.
Description
Technical field
This utility model relates to a kind of Cantor-Minkowski composite fractal mobile communication antenna.
Background technology
At present, forth generation mobile communication technology reaches its maturity, and has been enter into the business-like practical stage.TD-LTE
Standard is a kind of forth generation mobile communication standard gathered around and have broad application prospects, and is that the forth generation of China moves
Communication mainstream standard, the conventional working frequency range of TD-LTE standard is 2570MHz～2620MHz.5th generation
Mobile communication is the third generation mobile communication system developed towards the year two thousand twenty mobile communication demand later, has
The availability of frequency spectrum of superelevation and efficiency, have greater advantage at the aspect such as transfer rate and resource utilization.International
On 2015 WRC (WRC-15) that telecommunication union (ITU) holds, it is proposed that
Potential candidate's frequency range of five third-generation mobile communications, wherein 3300～3400MHz frequency ranges are most important candidate's frequency ranges
One of.
Following mobile communication equipment in use have to be in the face of such a problem: many generations are mobile logical
Communication system will coexist within the longest a period of time, and this just requires that the mobile communication antenna in future possesses multiband
Compatible function.The performance requirement of antenna is by forth generation, the 5th Generation Mobile Communication System: can put into shifting
In mobile communication terminal equipment, meet small size, low thickness, low return loss, big bandwidth of operation and complete simultaneously
To radiate these five requirements, it is possible to be completely covered forth generation mobile communication TD-LTE standard 2570MHz～
2620MHz frequency range and 3300～3400MHz candidate's frequency ranges of the 5th third-generation mobile communication.Composite fractal structure by
Two or more tradition fractal structure fusion forms, and edge curve and interior metal radiation area all will have
Self-similar structure, has the advantage of uniqueness at multiband compatible parties mask, be suitable for designing compatible forth generation,
The high-performance mobile communication antenna of the 5th Generation Mobile Communication System.
Summary of the invention
The purpose of this utility model is to provide one that forth generation mobile communication TD-LTE mark can be completely covered
Accurate 2570MHz～2620MHz frequency range and 3300～3400MHz candidate's frequency ranges of the 5th third-generation mobile communication
Cantor-Minkowski composite fractal mobile communication antenna.
The purpose of this utility model is achieved through the following technical solutions: compound point of a kind of Cantor-Minkowski
Shape mobile communication antenna, it includes substrate, antenna ground plate and radiation patch, antenna ground plate and radiation patch
Sheet is fitted on the two sides of substrate respectively, and described antenna ground plate is all-metal ground structure, and described radiation is pasted
Sheet is Cantor-Minkowski composite fractal structure.
Preferably, described Cantor-Minkowski composite fractal structure uses Cantor fractal structure as base
This structure, substitutes the little square-shaped metal region Minkowski fractal structure within basic structure.
Preferably, the Cantor fractal structure that described Cantor-Minkowski composite fractal structure uses is at least
It is 2 stage structures.
Preferably, the Minkowski fractal structure that described Cantor-Minkowski composite fractal structure uses
At least 2 stage structures.
Preferably, on the downside of described basic structure, edge center is provided with antenna feed point.
Preferably, described substrate is low-loss microwave ceramics substrate, and its relative dielectric constant is 11-15.
Preferably, described substrate be shaped as rectangle, size is 30mm ± 1mm × 30mm ± 1mm, thickness
For 2mm ± 0.2mm.
Preferably, described Cantor-Minkowski composite fractal radiation patch overall size is
24mm±1mm×24mm±1mm。
Preferably, the material of described antenna ground plate and radiation patch is copper, silver, gold or aluminum.
For prior art, the utility model has the advantage of: existing fractal antenna structure mostly is single
Fractal structure, fractal self-similarity nature is only embodied in the position, edge of antenna, the metallic region of inner antenna
It is still common metal radiation district, there is no self-similarity nature.And our the Cantor-Minkowski of design is multiple
Closing fractal antenna structure, use Cantor fractal structure is as basic structure, by its internal little square-shaped metal
Region with Minkowski fractal structure substitute, two kinds of face fractal structures merge, make antenna from inner to
All having self-similarity nature outward, the radio-frequency current in whole composite fractal radiation patch all will be uniformly distributed, sky
Line will be provided with the strongest multiband compatibility, and each working band all have good radiant intensity and
The biggest bandwidth of operation.Antenna can realize small size, low thickness, low return loss, big work strip simultaneously
Wide and these five requirements of omnidirectional radiation, meet forth generation, the performance of antenna is wanted by the 5th Generation Mobile Communication System
Ask.
Accompanying drawing explanation
Fig. 1 is the iterative process schematic diagram of Cantor fractal structure.In FIG, (a) is 1 rank Cantor
Fractal structure；B () is 2 rank Cantor fractal structures.
Fig. 2 is the iterative process schematic diagram of Minkowski fractal structure.In fig. 2, (a) is that 0 rank are bright
Can Paderewski fractal structure；B () is 1 rank Minkowski fractal structure；C () is 2 rank Ming Kefusi
Base fractal structure.
Fig. 3 is Cantor-Minkowski composite fractal radiation patch structural representation.
Fig. 4 is the return loss (S of the embodiment of the present invention11) performance map, the abscissa in figure represents frequency
Frequency (GHz), vertical coordinate represents return loss intensity (The return loss value of the
antenna(dB))。
Label declaration: 1 substrate, 2 radiation patch, 3 antenna feed points.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, this utility model content is described in detail:
A kind of Cantor-Minkowski composite fractal mobile communication antenna, it includes substrate, antenna ground plate
And radiation patch, antenna ground plate and radiation patch be fitted on the two sides of substrate respectively, described antenna ground
Plate is all-metal ground structure, and described radiation patch is Cantor-Minkowski composite fractal structure.
Described Cantor-Minkowski composite fractal structure use Cantor fractal structure as basic structure,
Its internal little square-shaped metal region Minkowski fractal structure is substituted.
The iterative process of Cantor fractal structure is as it is shown in figure 1, its initial cell is square patch, by it
It is divided into four 16 little squares of row four row.Remove the 3rd little square of the first row, the second row first
The 4th little square of little square, the third line, second little square of fourth line, remaining 12 little just
Square, i.e. constitute 1 rank Cantor fractal structure.By each little square of 1 rank Cantor fractal structure again
It is divided into four 16 slight squares of row four row respectively.Remove the 3rd slight square of the first row, second
First slight square of row, the 4th slight square of the third line, second slight square of fourth line,
Obtain 2 rank Cantor fractal structures.By this iteration, each high-order Cantor fractal structure can be generated.
The iterative process of Minkowski fractal structure is as in figure 2 it is shown, its initial cell is the length of side is that L is square
Shape paster, by each edge trisection, is that the line segment of L/3 translates h inside square by every limit intermediate length,
Forming 4 rectangular indentation, if the ratio of the degree of depth of breach and width is p, different p values is by different for correspondence 1
Rank Minkowski fractal structure.Every line segment trisection to 1 rank Minkowski fractal structure, according to
Identical p value digs out 1 rectangular indentation on every line segment, i.e. obtains 2 rank Minkowski fractal structures.
By this iteration, each high-order Minkowski fractal structure can be generated.
Described Cantor-Minkowski composite fractal structure uses the Cantor fractal structure and extremely at least 2 rank
The Minkowski fractal structure on few 2 rank, antenna feed point is preferably located at described Cantor fractal structure underside
Edge center.
Described substrate is low-loss microwave ceramics substrate, and its relative dielectric constant is 11-15.The shape of described substrate
Shape is preferably rectangular, and size is preferably 30mm ± 1mm × 30mm ± 1mm, and thickness is 2mm ± 0.2mm.
Described Cantor-Minkowski composite fractal radiation patch overall size is preferably
24mm±1mm×24mm±1mm。
The material of described antenna ground plate and radiation patch is copper, silver, gold or aluminum.
An of the present utility model specific embodiment be given below:
Seeing Fig. 3, the present embodiment is provided with substrate 1, antenna ground plate and radiation patch 2, antenna ground plate
With on the two sides that radiation patch 2 is fitted in substrate 1 respectively, antenna ground plate is all-metal ground structure, spoke
Penetrate paster 2 structure as shown in Figure 3.The embodiment of the present invention uses a size of 24mm ± 1mm × 24mm ± 1mm
2 rank Cantor fractal structures as basic structure, by its internal 144 a size of 1.5mm × 1.5mm's
Little square area substitutes with 2 rank Minkowski fractal structures, constitutes Cantor-Minkowski and is combined
Fractal radiation patch.
Substrate 1 is low-loss microwave ceramics substrate, and its relative dielectric constant is 11-15.Being shaped as of substrate 1
Rectangle, size is 30mm ± 1mm × 30mm ± 1mm, and thickness is 2mm ± 0.2mm.
See Fig. 4, Fig. 4 and give the return loss (S of the embodiment of the present invention11) performance map.Can from Fig. 4
Going out, measured result shows that this antenna has two working frequency range, and two resonant frequencies of antenna are respectively 2.62
GHz and 3.63GHz, return loss S at two resonant frequencies of antenna11Value be respectively-24.83dB and-
24.56dB, two working frequency range of antenna are respectively 1.742～3.041GHz and 3.041～4.272GHz,
Antenna is respectively 1.299GHz and 1.231GHz at the bandwidth of operation of two working frequency range.Measured result shows,
This antenna completely covers 2570MHz～the 2620MHz frequency of forth generation mobile communication TD-LTE standard
Section and 3300～3400MHz candidate's frequency ranges of the 5th third-generation mobile communication.
There is no actual the 5th third-generation mobile communication antenna product come into operation at present, this utility model is in the 5th generation
Mobile communication antenna aspect belongs to fills up the product that research is blank both at home and abroad.With for forth generation mobile communication
The conventional microstrip antennas of TD-LTE standard traffic frequency range compares, this utility model have advantage highlighted below and
Significantly effect: antenna size is the least, only 30mm × 30mm, can put various small mobile communication into
Terminal；Antenna return loss is relatively low, and the return loss minima of two working frequency range is both less than-24dB, far
Less than conventional microstrip antennas；The bandwidth of operation of antenna is very big, two working frequency range completely covers 1.742～
The frequency range of 4.272GHz, except can cover forth generation mobile communication TD-LTE standard traffic frequency range and
Outside candidate's frequency range of the 5th third-generation mobile communication, the most compatible Generation Mobile Telecommunication System GSM standard 1805～
1880MHz frequency range, the 1880～1920MHz of 3G (Third Generation) Moblie TD-SCDMA standard, 2010～
2025MHz, 2300～2400MHz frequency range, the 1920～1980 of 3G (Third Generation) Moblie WCDMA standard
MHz, 2110～2170MHz frequency range, 2400～2483.5MHz frequency ranges of radio-frequency recognition system.Antenna
Achieve the second filial generation, the third generation, forth generation, the 5th third-generation mobile communication frequency range, the complete of RF identification frequency range are held concurrently
Hold, it is possible to realize simultaneously small size, low thickness, low return loss, big bandwidth of operation and omnidirectional radiation this five
Individual requirement, has broad application prospects.
Claims (10)
1. Cantor-Minkowski composite fractal mobile communication antenna, it is characterised in that: it includes
Substrate, antenna ground plate and radiation patch, antenna ground plate and radiation patch are fitted in the two sides of substrate respectively
On, described antenna ground plate is all-metal ground structure, and described radiation patch is that Cantor-Minkowski is multiple
Close fractal structure.
Cantor the most according to claim 1-Minkowski composite fractal mobile communication antenna, its
It is characterised by: described Cantor-Minkowski composite fractal structure uses Cantor fractal structure as substantially
Structure, substitutes the little square-shaped metal region Minkowski fractal structure within basic structure.
Cantor the most according to claim 2-Minkowski composite fractal mobile communication antenna, its
It is characterised by: the Cantor fractal structure that described Cantor-Minkowski composite fractal structure uses is at least
2 stage structures.
Cantor the most according to claim 2-Minkowski composite fractal mobile communication antenna, it is special
Levy and be: the Minkowski fractal structure that described Cantor-Minkowski composite fractal structure uses is at least
It is 2 stage structures.
Cantor the most according to claim 2-Minkowski composite fractal mobile communication antenna, it is special
Levy and be: on the downside of described basic structure, edge center is provided with antenna feed point.
6. move according to the Cantor-Minkowski composite fractal described in claim 1,2,3,4 or 5
Communication antenna, it is characterised in that: described substrate is low-loss microwave ceramics substrate.
Cantor the most according to claim 6-Minkowski composite fractal mobile communication antenna, its
It is characterised by: the relative dielectric constant of described low-loss microwave ceramics substrate is 11-15.
8. move according to the Cantor-Minkowski composite fractal described in claim 1,2,3,4 or 5
Communication antenna, it is characterised in that: described substrate be shaped as rectangle, size is
30mm ± 1mm × 30mm ± 1mm, thickness is 2mm ± 0.2mm.
9. move according to the Cantor-Minkowski composite fractal described in claim 1,2,3,4 or 5
Communication antenna, it is characterised in that: described Cantor-Minkowski composite fractal radiation patch overall size is
24mm±1mm×24mm±1mm。
10. move according to the Cantor described in claim 1,2,3,4 or 5-Minkowski composite fractal
Dynamic communication antenna, it is characterised in that: the material of described antenna ground plate and radiation patch is copper, silver, Jin Huo
Aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359342.7U CN205595445U (en) | 2016-04-26 | 2016-04-26 | Compound fractal mobile communication antenna of cantor - ming kefusiji |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359342.7U CN205595445U (en) | 2016-04-26 | 2016-04-26 | Compound fractal mobile communication antenna of cantor - ming kefusiji |
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| CN205595445U true CN205595445U (en) | 2016-09-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876880A (en) * | 2017-03-09 | 2017-06-20 | 厦门大学嘉庚学院 | Propagating Tree cross composite fractal antenna |
| CN106876899A (en) * | 2017-03-09 | 2017-06-20 | 厦门大学嘉庚学院 | Straight-flanked ring Cantor composite fractal antenna |
| CN106898872A (en) * | 2017-02-23 | 2017-06-27 | 厦门大学嘉庚学院 | A kind of composite fractal ultra-wideband antenna |
| CN106911009A (en) * | 2017-02-23 | 2017-06-30 | 厦门大学嘉庚学院 | For the photonic crystal fractal array antennas of mobile communication |
| CN107196055A (en) * | 2017-05-26 | 2017-09-22 | 厦门大学嘉庚学院 | A kind of compatible fractal array antennas of multiband |
-
2016
- 2016-04-26 CN CN201620359342.7U patent/CN205595445U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898872A (en) * | 2017-02-23 | 2017-06-27 | 厦门大学嘉庚学院 | A kind of composite fractal ultra-wideband antenna |
| CN106911009A (en) * | 2017-02-23 | 2017-06-30 | 厦门大学嘉庚学院 | For the photonic crystal fractal array antennas of mobile communication |
| CN106911009B (en) * | 2017-02-23 | 2019-12-20 | 厦门大学嘉庚学院 | Photonic crystal fractal array antenna for mobile communication |
| CN106876880A (en) * | 2017-03-09 | 2017-06-20 | 厦门大学嘉庚学院 | Propagating Tree cross composite fractal antenna |
| CN106876899A (en) * | 2017-03-09 | 2017-06-20 | 厦门大学嘉庚学院 | Straight-flanked ring Cantor composite fractal antenna |
| CN107196055A (en) * | 2017-05-26 | 2017-09-22 | 厦门大学嘉庚学院 | A kind of compatible fractal array antennas of multiband |
| CN107196055B (en) * | 2017-05-26 | 2023-05-05 | 厦门大学嘉庚学院 | Multi-band compatible fractal array antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20190426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |