CN207459165U - The bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism - Google Patents
The bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism Download PDFInfo
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- CN207459165U CN207459165U CN201721625901.5U CN201721625901U CN207459165U CN 207459165 U CN207459165 U CN 207459165U CN 201721625901 U CN201721625901 U CN 201721625901U CN 207459165 U CN207459165 U CN 207459165U
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Abstract
The utility model proposes a kind of bionical photonic crystal arrays ultra-wide band antenna structures of electromagnetism, which is characterized in that including：Substrate, the antenna ground plate for being covered in substrate back and the bionical photonic crystal arrays radiation patch of electromagnetism for being covered in substrate front side；The antenna ground plate is all-metal ground structure；The aerial array that the bionical photonic crystal arrays radiation patch of electromagnetism is made of the compound miniature antenna of the bionical photonic crystal of electromagnetism according to rectangular array structural arrangement；The compound miniature antenna of the bionical photonic crystal of electromagnetism uses the rectangle photon crystal structure being made of the metallic region with square hole, and the metallic region divides shape electromagnetism biomimetic features to be substituted as basic Component units by growth formula.Compared with the prior art, covering frequency range is wider, has larger performance redundancy for the utility model, has both the multiple functions such as mobile communication, RF Signal, ultra-broadband signal transmission and transmitting-receiving mobile digital TV signals.
Description
Technical field
The utility model belongs to mobile terminal antenna field more particularly to a kind of bionical photonic crystal arrays ultra-wideband of electromagnetism
Band antenna structure.
Background technology
With the continuous development of wireless communication technique, various criterion, different frequency, the various wireless communication frequency of different systems
Stage mode is by long-term co-existence.In order to adapt to this development trend, the antenna indispensable as wireless telecom equipment will be with leading to
Believe that standard development is adapted, antenna needs to have the function of multiband compatibility.At present, Chinese mobile communication working frequency range is：
0.905~0.915 GHz of GSM standards, 0.950~0.960 GHz, 1.710~1.785 GHz, 1.805~1.880 GHz frequencies
Section, 1.880~1.920 GHz of TD-SCDMA standards, 2.010~2.025 GHz, 2.300~2.400 ghz bands, WCDMA systems
1.920~1.980 GHz of formula, 2.110~2.170 ghz bands, 2.570~2.620 ghz band of TD-LTE standards, the 5th
3.300~3.400 GHz of third-generation mobile communication, 4.400~4.500 GHz, 4.800~4.990 GHz, tri- candidate's frequency ranges；Radio frequency
Three working frequency range of identifying system are 0.902~0.928 GHz, 2.400~2.4835 GHz, 5.725~5.875 GHz；
The working frequency range of radio ultra wide band system is 3.100~10.600 GHz；Mobile digital TV system based on satellite transmission works frequently
Section is 11.700~12.200 GHz.
If a antenna has the working frequency range of ultra-wide, above-mentioned all mobile communication work frequency can be completely covered
Section, radio-frequency recognition system working frequency range, radio ultra wide band system working frequency range, mobile digital TV system working frequency range, use the day
The intelligent terminal of line will have both the multiple functions such as mobile communication, RF Signal, ultra wideband transmissions and mobile digital TV, more
It in the epoch that net unification constantly promotes, has broad application prospects.
Growth formula point shape electromagnetism biomimetic features are a kind of growth type iteration structures with self-similarity, are well suited for designing
All channel antenna.It has " merisis " ability as organism, all can be original in reservation after each " merisis "
On the basis of radiating frequency point, a radiation frequency point is increased newly in higher frequency range, the growth formula of high-order divides shape electromagnetism biomimetic features to have
There are multiple working frequency range, they, which are superimposed, can form a very wide working frequency range.
A kind of photon crystal structure novel optical material that the periodic arrangement in another medium forms by medium,
The photon band gap of generation can completely or partially hinder electromagnetic wave propagation.When photon crystal structure is used in Antenna Design,
By strictly designing, the photon band gap frequency that photonic crystal generates can be made consistent with the operating center frequency of antenna, this time
Part is prevented antenna from being radiated in the energy of former operating center frequency by subband gap, and energy is made to be diffused into neighbouring frequency radiation, from
And the frequency range of antenna energy is added, increase the bandwidth of operation of antenna.
Include with the relevant patent of this patent：CN101640310B、CN106911009A、CN205595447U.
Utility model content
In view of the shortcomings of the prior art and blank, the utility model use following technical scheme：
A kind of bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism, which is characterized in that including：Substrate is covered in
The antenna ground plate of substrate back and the bionical photonic crystal arrays radiation patch of electromagnetism for being covered in substrate front side；The antenna connects
Floor is all-metal ground structure；The bionical photonic crystal arrays radiation patch of electromagnetism is compound by the bionical photonic crystal of electromagnetism
The aerial array that miniature antenna is formed according to rectangular array structural arrangement；The compound miniature antenna use of the bionical photonic crystal of electromagnetism by
The rectangle photon crystal structure of metallic region composition with square hole, the metallic region divide shape electromagnetism bionical knot by growth formula
Structure is substituted as basic Component units.
Preferably, the size of the compound miniature antenna of the bionical photonic crystal of the electromagnetism is 7mm ± 0.1mm × 7mm ± 0.1mm.
Preferably, the rectangle photon crystal structure that the compound miniature antenna of the bionical photonic crystal of the electromagnetism uses includes at least 3
Row 3 arranges totally 9 square holes.
Preferably, the growth formula point shape electromagnetism biomimetic features used of the compound miniature antenna of the bionical photonic crystal of the electromagnetism are extremely
Divide shape electromagnetism biomimetic features less for the growth formula of 2 ranks.
Preferably, the base center of the compound miniature antenna of the bionical photonic crystal of the electromagnetism is equipped with distributing point.
Preferably, the rectangular array structure arranges the bionical light of totally 16 electromagnetism as array element miniature antenna including at least 4 rows 4
The sub- compound miniature antenna of crystal.
Preferably, the substrate is low-loss wave transparent ceramic substrate.
Preferably, substrate shape is rectangle, and substrate overall dimension is 36mm ± 1mm × 36mm ± 1mm, thickness 0.5mm
±0.1mm。
Preferably, the substrate arranges totally 16 small ceramic blocks by least 4 rows 4 and forms, the small ceramic block and the small day of array element
The position of line corresponds；The relative dielectric constant of the small ceramic block is along substrate length and width both direction gradual change；Wherein, phase
The substrate upper left corner, relative dielectric constant 3.0 are located to the small ceramic block of dielectric constant minimum；Relative dielectric constant maximum
Small ceramic block is located at the substrate lower right corner；The relative dielectric constant of the small ceramic block is according to order from left to right, from top to bottom
It gradually increases, the difference of the relative dielectric constant of two neighboring small ceramic block is 0.5.
Preferably, the material of the antenna ground plate and the bionical photonic crystal arrays radiation patch of electromagnetism is copper, silver, Jin Huo
Aluminium.
Growth formula point shape electromagnetism biomimetic features are combined by the utility model with photon crystal structure, and using aerial array
Designing scheme, both ensure that realization to mobile communication working frequency range, radio-frequency recognition system working frequency range, radio ultra wide band system work
It is covered while frequency range, mobile digital TV system working frequency range, also ensures that antenna has wideband working characteristics and higher simultaneously
Radiation intensity.It, can be into one using the low-loss wave transparent ceramic substrate with tapered dielectric constants characteristic as antenna substrate
The working band of broadening aerial array is walked, ensures that antenna array shows enough performance redundancies.
Compared with the prior art, covering frequency range is wider for the utility model（Own including the second generation to the 5th third-generation mobile communication
Working frequency range, radio-frequency recognition system frequency range, radio ultra wide band system frequency range and mobile digital TV system frequency band）, have the larger performance superfluous
It is remaining, have both the multiple functions such as mobile communication, RF Signal, ultra-broadband signal transmission and transmitting-receiving mobile digital TV signals.
Description of the drawings
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model：
Fig. 1 grows formula for 0 rank, 1 rank, 2 ranks in the utility model embodiment and divides shape electromagnetism biomimetic features schematic diagram；
Fig. 2 is rectangle photon crystal structure schematic diagram in the utility model embodiment；
Fig. 3 is the compound miniature antenna schematic diagram of the bionical photonic crystal of electromagnetism in the utility model embodiment；
Fig. 4 is substrate dielectric constant distribution schematic diagram in the utility model embodiment；
Fig. 5 is the utility model embodiment overall structure diagram；
Fig. 6 is the utility model embodiment return loss performance figure.
Specific embodiment
Feature and advantage to allow this patent can be clearer and more comprehensible, and special embodiment below is described in detail below：
The utility model embodiment includes：Substrate, the antenna ground plate for being covered in substrate back and it is covered in substrate front side
The bionical photonic crystal arrays radiation patch of electromagnetism；Antenna ground plate is all-metal ground structure.
As shown in figure 5, the bionical photonic crystal arrays radiation patch of electromagnetism is by the compound miniature antenna of the bionical photonic crystal of electromagnetism
The aerial array formed according to rectangular array structural arrangement；
As shown in Figure 2 and Figure 3, the compound miniature antenna of the bionical photonic crystal of electromagnetism is used by the metallic region group with square hole
Into rectangle photon crystal structure, metallic region divides shape electromagnetism biomimetic features to be substituted as basic Component units by growth formula.
As shown in figure 3, the size of the compound miniature antenna of the bionical photonic crystal of electromagnetism is 7mm ± 0.1mm × 7mm ± 0.1mm；Electricity
The rectangle photon crystal structure that the compound miniature antenna of the bionical photonic crystal of magnetic uses arranges totally 9 square holes including 3 rows 3.
Growth formula divides shape electromagnetism biomimetic features as shown in Figure 1, its prototype structure is square patch（0 rank, a）, for the first time
Each side length of side is dug out during iteration therebetween and is the square hole of the square half of 0 rank, and is connected on the square four edges of 0 rank
Upper four each side length of sides are square for the square half of 0 rank（1 rank, b）, iterative process can regard that 1 rank is square from 0 rank is square as
Divide away and be grown in the square surrounding of 0 rank.During second of iteration, each square middle merisis of 1 rank goes out each side length of side for it
2 ranks of half are square, the square one side of 1 rank with 0 rank is square is connected, in addition three sides with 2 ranks that merisis goes out are square is connected（2
Rank, c）.So iteration successively can obtain high-order growth formula point shape electromagnetism biomimetic features.
As shown in figure 3, in the present embodiment, the growth formula point shape electromagnetism used of the compound miniature antenna of the bionical photonic crystal of electromagnetism
Biomimetic features divide shape electromagnetism biomimetic features, the base centre bit of the compound miniature antenna of the bionical photonic crystal of electromagnetism for the growth formula of 2 ranks
Distributing point is installed.
As shown in Figure 4, Figure 5, in the present embodiment, the rectangular array structure of aerial array including 4 rows 4 arrange totally 16 be used as battle array
The compound miniature antenna of the bionical photonic crystal of electromagnetism of first miniature antenna.
Wherein, as shown in figure 4, substrate is low-loss wave transparent ceramic substrate, substrate shape is rectangle, and substrate overall dimension is
36mm ± 1mm × 36mm ± 1mm, thickness are 0.5mm ± 0.1mm, and substrate arranges totally 16 small ceramic blocks by 4 rows 4 and forms, small ceramics
The position of block and array element miniature antenna corresponds；The relative dielectric constant of small ceramic block is along substrate length and width both direction gradual change；
Wherein, the small ceramic block of relative dielectric constant minimum is located at the substrate upper left corner, relative dielectric constant 3.0；It is normal with respect to dielectric
The maximum small ceramic block of number is located at the substrate lower right corner, relative dielectric constant 6.0；The relative dielectric constant of small ceramic block according to
From left to right, order from top to bottom gradually increases, and the difference of the relative dielectric constant of two neighboring small ceramic block is 0.5.
Using after this tapered dielectric constants ceramic substrate in array antenna design, the medium substrate parameter of each array-element antenna not phase
Together, therefore the resonance frequency point of each array-element antenna is different.When the resonance frequency point of different array-element antennas is closer to, their spoke
Penetrating can be overlapped mutually with working band, a radiation intensity and all larger working band of bandwidth of operation be formed, so as to improve battle array
The performance redundancy of array antenna.
In the present embodiment, the material of antenna ground plate and the bionical photonic crystal arrays radiation patch of electromagnetism is copper, silver, Jin Huo
Aluminium.
As shown in fig. 6, shown to the present embodiment antenna measured result, the working band scope of this antenna for 0.567~
14.298 GHz, bandwidth of operation are 13.731 GHz, and bandwidth octave is 25.22, is damaged in entire working band internal antenna echo
Consumption is below -10 dB, and return loss minimum value is -37.64 dB.This antenna completely cover 0.902~0.928 GHz,
0.905~0.915 GHz, 0.950~0.960 GHz, 1.710~1.785 GHz, 1.805~1.880 GHz, 1.880~
1.920 GHz, 1.920~1.980 GHz, 2.010~2.025 GHz, 2.110~2.170 GHz, 2.300~2.400
GHz, 2.400~2.4835 GHz, 2.570~2.620 GHz, 3.300~3.400 GHz, 4.400~4.500 GHz,
4.800~4.990 GHz, 5.725~5.875 GHz, 3.100~10.600 GHz, 11.700~12.200 GHz etc. second
Five third-generation mobile communication working frequency range of Dai Zhi, radio-frequency recognition system working frequency range, radio ultra wide band system working frequency range, mobile number electricity
Viewing system working frequency range.
With for mobile communication system, radio-frequency recognition system, ultra-wideband communication system, mobile digital TV system routine
Antenna compares, this antenna has the advantages that prominent and significant effect：This antenna belongs to ultrathin antenna, and thickness is only 0.5
Mm can put mobile phone, radio-frequency identification reader/writer, RFID tag, various pocket super-broadband mobile terminals and mobile number into
In television terminal；This antenna is in mobile communication working frequency range, radio-frequency recognition system working frequency range, radio ultra wide band system work frequency
Section, the radiance of mobile digital TV system working frequency range are uniformly stablized, and the return loss value fluctuation in working frequency range is very
Small, in 0.863~13.102 5 GHz band, the return loss of antenna is below -30 dB, it ensure that antenna is to very wideband
Wireless signal in section has preferable transmission quality；This antenna has larger performance redundancy, and bandwidth of operation is up to 13.731
GHz, return loss minimum value can deal with various unpredictable bad electromagnetic environments down to -37.64 dB.
This patent is not limited to above-mentioned preferred forms, anyone can draw other each under the enlightenment of this patent
The bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism of kind of form, it is all to be done according to present utility model application the scope of the claims
Equivalent changes and modifications should all belong to the covering scope of this patent.
Claims (10)
1. a kind of bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism, which is characterized in that including：Substrate is covered in base
The antenna ground plate of back and the bionical photonic crystal arrays radiation patch of electromagnetism for being covered in substrate front side；The antenna ground
Plate is all-metal ground structure；The bionical photonic crystal arrays radiation patch of electromagnetism is compound small by the bionical photonic crystal of electromagnetism
The aerial array that antenna is formed according to rectangular array structural arrangement；The compound miniature antenna use of the bionical photonic crystal of electromagnetism is by band
The rectangle photon crystal structure of the metallic region composition of square hole, the metallic region divide shape electromagnetism biomimetic features by growth formula
It is substituted as basic Component units.
2. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1, it is characterised in that：It is described
The size of the compound miniature antenna of the bionical photonic crystal of electromagnetism is 7mm ± 0.1mm × 7mm ± 0.1mm.
3. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1, it is characterised in that：It is described
The rectangle photon crystal structure that the compound miniature antenna of the bionical photonic crystal of electromagnetism uses arranges totally 9 square holes including at least 3 rows 3.
4. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1, it is characterised in that：It is described
The growth formula point shape electromagnetism biomimetic features used of the compound miniature antenna of the bionical photonic crystal of electromagnetism are at least the growth formula point shape of 2 ranks
Electromagnetism biomimetic features.
5. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1, it is characterised in that：It is described
The base center of the compound miniature antenna of the bionical photonic crystal of electromagnetism is equipped with distributing point.
6. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1, it is characterised in that：It is described
Rectangular array structure arranges the bionical compound miniature antenna of photonic crystal of totally 16 electromagnetism as array element miniature antenna including at least 4 rows 4.
7. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1-6 any of which, special
Sign is：The substrate is low-loss wave transparent ceramic substrate.
8. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 7, it is characterised in that：Substrate
Shape is rectangle, and substrate overall dimension is 36mm ± 1mm × 36mm ± 1mm, and thickness is 0.5mm ± 0.1mm.
9. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 6, it is characterised in that：It is described
Substrate arranges totally 16 small ceramic blocks by least 4 rows 4 and forms, and the position of the small ceramic block and array element miniature antenna corresponds；Institute
The relative dielectric constant of small ceramic block is stated along substrate length and width both direction gradual change；Wherein, the little Tao of relative dielectric constant minimum
Porcelain block is located at the substrate upper left corner, relative dielectric constant 3.0；The small ceramic block of relative dielectric constant maximum is located at substrate bottom right
Angle；The relative dielectric constant of the small ceramic block is gradually increased according to order from left to right, from top to bottom, two neighboring little Tao
The difference of the relative dielectric constant of porcelain block is 0.5.
10. the bionical photonic crystal arrays ultra-wide band antenna structure of electromagnetism according to claim 1-6 any of which, special
Sign is：The material of the antenna ground plate and the bionical photonic crystal arrays radiation patch of electromagnetism is copper, silver, gold or aluminium.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088172A (en) * | 2018-08-20 | 2018-12-25 | 成都邑电信息技术服务有限公司 | A kind of detail three bands complex type absorbent structures of load based on frequency-selective surfaces |
| CN109728433A (en) * | 2019-01-24 | 2019-05-07 | 厦门大学嘉庚学院 | Four spiral slit Fractal array ultra-wide band antennas |
| CN109742559A (en) * | 2019-03-01 | 2019-05-10 | 厦门大学嘉庚学院 | Recycle gradual change patch bionic array ultra-wide band antenna |
| CN109768376A (en) * | 2019-01-24 | 2019-05-17 | 厦门大学嘉庚学院 | Butterfly gap Fractal array ultra-wide band antenna |
| CN109786956A (en) * | 2019-01-24 | 2019-05-21 | 厦门大学嘉庚学院 | Raw rectangular slot Fractal array ultra-wide band antenna |
| CN109786955A (en) * | 2019-01-24 | 2019-05-21 | 厦门大学嘉庚学院 | A kind of photonic crystal gap Fractal array ultra-wide band antenna |
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2017
- 2017-11-29 CN CN201721625901.5U patent/CN207459165U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088172A (en) * | 2018-08-20 | 2018-12-25 | 成都邑电信息技术服务有限公司 | A kind of detail three bands complex type absorbent structures of load based on frequency-selective surfaces |
| CN109088172B (en) * | 2018-08-20 | 2020-11-06 | 成都邑电信息技术服务有限公司 | Branch node loading three-frequency-band composite wave absorbing structure based on frequency selective surface |
| CN109728433A (en) * | 2019-01-24 | 2019-05-07 | 厦门大学嘉庚学院 | Four spiral slit Fractal array ultra-wide band antennas |
| CN109768376A (en) * | 2019-01-24 | 2019-05-17 | 厦门大学嘉庚学院 | Butterfly gap Fractal array ultra-wide band antenna |
| CN109786956A (en) * | 2019-01-24 | 2019-05-21 | 厦门大学嘉庚学院 | Raw rectangular slot Fractal array ultra-wide band antenna |
| CN109786955A (en) * | 2019-01-24 | 2019-05-21 | 厦门大学嘉庚学院 | A kind of photonic crystal gap Fractal array ultra-wide band antenna |
| CN109742559A (en) * | 2019-03-01 | 2019-05-10 | 厦门大学嘉庚学院 | Recycle gradual change patch bionic array ultra-wide band antenna |
| CN109742559B (en) * | 2019-03-01 | 2020-08-14 | 厦门大学嘉庚学院 | Ultra-wideband antenna with circularly-gradient patch bionic array |
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Granted publication date: 20180605 Termination date: 20201129 |