CN209730160U - A kind of periodicity class snowflake structure ultra-wideband antenna - Google Patents
A kind of periodicity class snowflake structure ultra-wideband antenna Download PDFInfo
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- CN209730160U CN209730160U CN201920263989.3U CN201920263989U CN209730160U CN 209730160 U CN209730160 U CN 209730160U CN 201920263989 U CN201920263989 U CN 201920263989U CN 209730160 U CN209730160 U CN 209730160U
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- class snowflake
- microband paste
- medium substrate
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- 241000533950 Leucojum Species 0.000 title claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 abstract description 15
- 238000010276 construction Methods 0.000 abstract description 10
- 230000001413 cellular effect Effects 0.000 abstract description 9
- 238000005520 cutting process Methods 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 abstract description 4
- 238000005530 etching Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000000191 radiation effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000004088 simulation Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
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Abstract
The utility model belongs to microstrip antenna technical field, discloses a kind of periodical class snowflake structure ultra-wideband antenna, is provided with medium substrate；Medium substrate surface, which is carved, is equipped with the latticed line of rabbet joint, and intermediate on the upside of medium substrate to have sticked microband paste, microband paste surface, which is carved, is equipped with multiple rows of class snowflake shape decorative pattern, and there are three rectangle stripeds for the setting of class snowflake shape decorative pattern.The utility model works in the rectangular microband paste antenna of 2.45GHz to centre frequency, the inductance and capacitor of rectangular radiation patch are changed by etching class snowflake cellular construction, cutting processing is carried out on earth plate simultaneously, the equivalent capacity between cellular construction in formation and radiation patch, the current distribution in radiation patch is changed by the cellular construction of etching, and then change radiation effect, within the scope of 4.2GHz-25GHz, the return loss of antenna is all in -10dB hereinafter, the periodic cells structure of cutting can dramatically increase the beamwidth of antenna.
Description
Technical field
The utility model belongs to microstrip antenna technical field more particularly to a kind of periodical class snowflake structure ultra wide band day
Line.
Background technique
Currently, the prior art commonly used in the trade is such that
Microstrip antenna has the characteristics that small in size, section is low, manufacturing process is relatively easy, it is conformal to be convenient for, in many fields
For example wireless communication, radar, satellite navigation etc. are widely used.However, traditional microstrip antenna frequency band is relatively narrow,
It is not able to satisfy growing application demand, the rise of recent Meta Materials and manual electromagnetic structure provides for Antenna Design
Many new ways.
It realizes that the broadband main path of microstrip antenna has at present: label 1: the medium substrate of different parameters being selected (to increase
Thickness, using low-k), fractal technology, grooving techniques (open U-lag and design E type patch), the methods of impedance matching exhibition
Open bandwidth.Meta Materials design method based on grooving techniques, have it is easy to operate, do not change antenna overall dimensions, mitigate antenna
The advantages that weight.But for microstrip antenna, due to lacking a kind of energy its working principle is that resonant operational, frequency band is usually relatively narrow
Enough increase the ultra-wideband antenna of bandwidth.
In conclusion problem of the existing technology is: the microstrip antenna for being 2.45GHz for resonance frequency, using super
Surface thought combination grooving techniques, realization significantly improve the bandwidth of microstrip antenna.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of periodical class snowflake structure ultra wide band day
Line.
The utility model is realized in this way a kind of periodicity class snowflake structure ultra-wideband antenna is provided with
Medium substrate；
Medium substrate lower surface is perfact conductor earth plate, and is carved with the latticed line of rabbet joint and carves equipped with the latticed line of rabbet joint, medium
Intermediate on the upside of substrate to have sticked microband paste, the class snowflake shape decorative pattern for being equipped with periodic arrangement, single class snow are carved in microband paste surface
The setting of flower-shape decorative pattern is there are three rectangle striped, and three rectangle stripeds intersect in central point, the folder between each striped
Angle is 60 °.
The utility model works in the rectangular microband paste antenna of 2.45GHz to centre frequency, by etching class snowflake list
Meta structure changes the inductance and capacitor of rectangular radiation patch, while cutting processing is carried out on earth plate, is formed and is pasted with radiation
Equivalent capacity between the cellular construction of on piece changes the current distribution in radiation patch by the cellular construction of etching, in turn
Change radiation effect, within the scope of 4.2GHz-25GHz, the return loss of antenna is all in -10dB hereinafter, the periodically list of cutting
Meta structure can dramatically increase the beamwidth of antenna.The class snowflake shape Structure Widening beamwidth of antenna of the invention is bigger.
Further, microband paste is connected by a quarter impedance transducer with 50 ohm microstrips.
The utility model ultra-wideband antenna carries out side feedback to microband paste by microstrip line.
Further, microband paste has etched 7 class snowflake shape decorative patterns in X direction, and y direction has etched 6 classes
Snowflake shape decorative pattern.Form equivalent inductance, capacitor improves the resonance effect of antenna.
Further, the spacing of adjacent class snowflake shape decorative pattern is 5mm.The class of the small spacing of symmetry avenges flower structure as far as possible,
Design antenna is more enabled to can satisfy omni-directional radiation.
Detailed description of the invention
Fig. 1 is periodical class snowflake structure ultra-wideband antenna structural schematic diagram provided by the embodiment of the utility model；
Fig. 2 is microband paste structural schematic diagram provided by the embodiment of the utility model；
Fig. 3 is class snowflake shape pattern structure schematic diagram provided by the embodiment of the utility model；
Fig. 4 is that antenna provided by the embodiment of the utility model integrally emulates schematic diagram；
Fig. 5 is S11 simulation curve schematic diagram provided by the embodiment of the utility model；
Fig. 6 is the corresponding S11 simulation curve schematic diagram of different cellular construction width provided by the embodiment of the utility model；
Fig. 7 is the corresponding S11 simulation curve schematic diagram of different cellular construction length provided by the embodiment of the utility model；
Fig. 8 is the corresponding S11 simulation curve schematic diagram of different gap width provided by the embodiment of the utility model；
Fig. 9 is the S11 simulation curve schematic diagram after structure optimization provided by the embodiment of the utility model；
Figure 10 is the polar coordinates direction schematic diagram after optimization provided by the embodiment of the utility model；
In figure: 1, medium substrate；2, microband paste；3, class snowflake shape decorative pattern；4, the line of rabbet joint；5, impedance transducer；6, micro-strip
Line.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing.
As shown in Figure 1 to Figure 3, periodical class snowflake structure ultra-wideband antenna provided by the embodiment of the utility model includes:
Medium substrate 1, microband paste 2, class snowflake shape decorative pattern 3, the line of rabbet joint 4, impedance transducer 5, microstrip line 6.
1 surface of medium substrate, which is carved, is equipped with the latticed line of rabbet joint 4, and 1 upside of medium substrate is intermediate to have sticked microband paste 2, micro-strip
2 surface of patch, which is carved, is equipped with multiple rows of class snowflake shape decorative pattern 3, and there are three rectangle striped, three rectangles for the setting of class snowflake shape decorative pattern 3
Striped intersects in central point, and the angle between each striped is 60 °.
Preferably, microband paste 2 is connected by the ohm microstrip of a quarter impedance transducer 5 and 50 6.
Preferably, microband paste 2 has etched 7 class snowflake shape decorative patterns 3 in X direction, y direction has etched 6
A class snowflake shape decorative pattern 3.
Preferably, the spacing of adjacent class snowflake shape decorative pattern 3 is 5mm.
Preferably, medium substrate 1 selects FR4 epoxy resin board, thickness h=1.6mm, dielectric constant=4.4, micro-strip
Patch 2 width w=37.26mm, length L=30.21mm, permittivity ε e=3.73, equivalent gap width Δ L=0.75mm.
A quarter impedance transducer long 16.45mm, wide 1.16mm.
Preferably, three rectangle stripeds of class snowflake shape decorative pattern 3 are long 4mm, the rectangle of wide 0.3mm, the line of rabbet joint 4 is wide
Degree is 0.2mm.
Micro-strip rectangular patch antenna design: the relative efficiency dielectric constant of medium substrate used in rectangular microband paste antenna
ε r is the effective dielectric constant of medium substrate in formula, and h is the height of medium substrate, and W is the width of rectangular patch.
The length L of rectangular microband paste antenna:
C is the light velocity in vacuum；f0Indicate the working frequency of antenna, Δ L is equivalent radiated power length.
The width of rectangular patch:
Antenna is integrally emulated using HFSS electromagnetic simulation software, radiation patch and earth plate are set as ideal and lead
Body boundary condition, air cartridge are set as radiation boundary condition, and excitation port is set as the excitation of wave port, calculate frequency range and are
1GHz-26.5GHz.S11 simulation curve result is as shown in figure 5, it can be seen that the beamwidth of antenna for being carved with class snow design is aobvious
Work is widened.In 4.10GHz-25.9GHz frequency range, in addition to two frequency ranges of 11.0GHz-11.9GHz and 15.3GHz-16.0GHz
S11 be greater than -10dB outside, remaining frequency point be respectively less than -10dB.
Influence of the class snowflake shape radiation patch cell width w to performance: parameter scanning, figure are carried out from 0.2mm-0.4mm to w
6 give the corresponding S11 curve of different units width w.Antenna resonant frequency is omited it can be seen from the figure that changing cellular construction
There is change, and the frequency range on S11 greater than -10dB does not influence.
Influence of the class snowflake shape radiation patch element length l to performance: parameter is carried out from 3mm to 5mm to element length and is swept
It retouches, simulation result is as shown in Figure 7.It can be seen from the figure that radiation patch element length to starting resonance frequency, notch depth with
And the return loss numerical value of antenna all has an impact.As l=5mm, the S11 parameter of antenna is greater than -10dB, property in multiple frequency ranges
It can be poor.When l=3mm, the resonant frequency point of antenna increases, and S11 curve graph deviates from normal outcome.The only day as l=4mm
Line has preferable S11 parameter curve in figure Mid Frequency, but in 11.0GHz-11.9GHz and 15.3GHz-16.0GHz two
S11 is greater than -10dB in frequency range.
Influence of the earth plate cutting gap width g to performance: the gap width of earth plate score line can change earth plate with
The shunt inductance between coupled capacitor and earth plate notching construction in radiation patch cellular construction, to influence the humorous of antenna
Vibration bandwidth, simulation result are as shown in Figure 8.As g=0.3mm, antenna often has the frequency band resonance that a S11 is greater than -10dB
Depth reduces, and performance is deteriorated instead.As g=0.5mm, antenna S11 is significantly widened in the following bandwidth of -10dB, has been shown good
Good ultra wide band.
The S11 of post-processing simulation result is in 4.2GHz-24.9GHz below -10dB in Fig. 9.Post-process simulation result
Show in radiation patch etch class snow design and on earth plate etch slot line structure come achieve the purpose that increase bandwidth,
And aerial radiation has omni-directional, as shown in Figure 10.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (4)
1. a kind of periodicity class snowflake structure ultra-wideband antenna, which is characterized in that the periodicity class snowflake structure ultra wide band day
Line is provided with
Medium substrate；
Medium substrate surface, which is carved, is equipped with the latticed line of rabbet joint, intermediate on the upside of medium substrate to have sticked microband paste, microband paste surface
It carves and is equipped with multiple rows of class snowflake shape decorative pattern, there are three rectangle stripeds for the setting of class snowflake shape decorative pattern, and three rectangle stripeds are at center
Point intersects.
2. periodicity class snowflake structure ultra-wideband antenna as described in claim 1, which is characterized in that microband paste passes through four points
One of impedance transducer be connected with 50 ohm microstrips.
3. periodicity class snowflake structure ultra-wideband antenna as described in claim 1, which is characterized in that microband paste is in horizontal axis side
7 class snowflake shape decorative patterns are etched upwards, y direction has etched 6 class snowflake shape decorative patterns.
4. periodicity class snowflake structure ultra-wideband antenna as described in claim 1, which is characterized in that adjacent class snowflake shape decorative pattern
Spacing be 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263989.3U CN209730160U (en) | 2019-03-02 | 2019-03-02 | A kind of periodicity class snowflake structure ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263989.3U CN209730160U (en) | 2019-03-02 | 2019-03-02 | A kind of periodicity class snowflake structure ultra-wideband antenna |
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| Publication Number | Publication Date |
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| CN209730160U true CN209730160U (en) | 2019-12-03 |
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| CN201920263989.3U Expired - Fee Related CN209730160U (en) | 2019-03-02 | 2019-03-02 | A kind of periodicity class snowflake structure ultra-wideband antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904601A (en) * | 2019-03-02 | 2019-06-18 | 湖南大学 | A kind of periodicity class snowflake structure ultra-wideband antenna |
| CN113587990A (en) * | 2021-07-30 | 2021-11-02 | 中北大学 | Parameter detection method, device and equipment based on microstrip antenna sensor |
| CN113839187A (en) * | 2021-09-17 | 2021-12-24 | 长沙理工大学 | High-gain double-frequency microstrip antenna with parasitic element loaded |
-
2019
- 2019-03-02 CN CN201920263989.3U patent/CN209730160U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904601A (en) * | 2019-03-02 | 2019-06-18 | 湖南大学 | A kind of periodicity class snowflake structure ultra-wideband antenna |
| CN109904601B (en) * | 2019-03-02 | 2024-01-02 | 湖南大学 | Periodic snowflake-like structure ultra-wideband antenna |
| CN113587990A (en) * | 2021-07-30 | 2021-11-02 | 中北大学 | Parameter detection method, device and equipment based on microstrip antenna sensor |
| CN113839187A (en) * | 2021-09-17 | 2021-12-24 | 长沙理工大学 | High-gain double-frequency microstrip antenna with parasitic element loaded |
| CN113839187B (en) * | 2021-09-17 | 2023-08-22 | 长沙理工大学 | Parasitic unit loaded high-gain double-frequency microstrip antenna |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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