CN206850018U - Ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback - Google Patents
Ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback Download PDFInfo
- Publication number
- CN206850018U CN206850018U CN201720793186.XU CN201720793186U CN206850018U CN 206850018 U CN206850018 U CN 206850018U CN 201720793186 U CN201720793186 U CN 201720793186U CN 206850018 U CN206850018 U CN 206850018U
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- China
- Prior art keywords
- feeder line
- earth plate
- antenna
- wide band
- circular
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Abstract
The utility model discloses a kind of ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback, its feature includes：Circular radiation paster, feeder line, earth plate and dielectric-slab；The surface of dielectric-slab is provided with circular radiation paster, feeder line and earth plate；Circular radiation paster is connected with the upper end of feeder line；The lower end of feeder line is provided with the interface with external connection；Earth plate is symmetrically arranged with the both sides of feeder line；And formed with gap between earth plate and feeder line.The utility model can increase the bandwidth of antenna, so as to meet radar use demand.
Description
Technical field
It the utility model is related to Radar Antenna System field, specifically a kind of ultra wide band based on coplanar wave guide feedback
Circular-shaped monopole sub-antenna.
Background technology
Co-planar waveguide provides the various advantages than traditional microstrip line, such as simple and easy shunting and serial surfaced active
The decline of installation and manufacturing cost with passive device.Its easy to make, integrated, microwave transmission has been widely used in integrated electricity
Road, the analysis of micro biological and chemical, detection of microfluid etc..Wherein, ultra wide band plate monopole sub-antenna is with broadband properties
Stereochemical structure antenna relatively simple for structure, but its have one it is fatal the shortcomings that be exactly antenna bandwidth it is narrow, so as to nothing
Method meets the needs of radar is to bandwidth.
The content of the invention
The utility model is to overcome shortcomings and deficiencies part existing for prior art, there is provided a kind of miniaturization, broadband, height
Isolation, easy processing, the ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback of fixation easy to install, to which antenna can be increased
Bandwidth, so as to meet radar use demand.
The utility model is that technical scheme is used by solving its technical problem：
A kind of design feature of the ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback of the utility model includes：Circle
Shape radiation patch, feeder line, earth plate and dielectric-slab；
Circular radiation paster, feeder line and the earth plate are provided with the surface of the dielectric-slab；The circular radiation patch
Piece is connected with the upper end of the feeder line；The lower end of the feeder line is provided with the interface with external connection；The two of the feeder line
Side is symmetrically arranged with the earth plate；The earth plate is rectangular configuration, and any one right angle is corner cut structure；The ground connection
Formed with gap between plate and the feeder line.
The design feature of ultra wide band circular-shaped monopole sub-antenna described in the utility model is lain also in：The corner cut structure setting
On the right angle close to the feeder line upper end, and form symmetrical structure.
Compared with prior art, the beneficial effects of the utility model are：
1st, the earth plate of the utility model antenna is in the approximately the same plane of dielectric-slab, this structure with circular radiation paster
The easy actual fabrication of antenna of setting, and it is simple in construction, it is integrated to be advantageous to communication system.
2nd, the utility model changes the impedance match situation of antenna by changing the gap between feeder line and earth plate, enters
And change the bandwidth of antenna, so as to meet the needs of various actual designs.
3rd, earth plate and circular radiation paster of the present utility model reduces the transmission damage of antenna in approximately the same plane
Consumption, and improve the performance of antenna.
4th, feeder line of the present utility model increases the bandwidth of antenna by way of coplanar wave guide feedback, changes so as to pass through
The feeding classification of conventional unipolar sub-antenna increases its bandwidth Design, and then meets radar use demand.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is that S is lost in the utility model clawback11Curve map；
Fig. 3 is the utility model E faces and H side gains directional diagram；
Label in figure：1 circular radiation paster；2 feeder lines；3 earth plates；4 dielectric-slabs.
Embodiment
In the present embodiment, a kind of ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback, as shown in figure 1, including：
Circular radiation paster 1, feeder line 2, earth plate 3 and dielectric-slab 4；Wherein, circular radiation paster 1, feeder line 2, earth plate 3 are metal
Material；Selection metal structure can further reduce antenna height, it is easier to realize miniaturization.On the one hand it ensure that structure institute
Material is saved under necessary support strength, reduces cost, on the other hand single rapidoprint reduces the complexity of antenna processing
Degree.
Circular radiation paster 1, feeder line 2 and earth plate 3 are provided with the surface of dielectric-slab 4；Compared to microstrip line, there will be circle
Radiation patch 1, feeder line 2 and earth plate 3 are disposed on the same plane so that antenna is changed to planar structure by stereochemical structure and then made
Antenna volume is obtained to diminish, be simple in construction, being easy to make.Circular radiation paster 1 is connected with the upper end of feeder line 2；The lower end of feeder line 2
It is provided with the interface with external connection；Compared to feed microstrip line, can have broader working band, its spoke using feeder line 2
The far-field pattern penetrated also has more preferable symmetry.
Earth plate 3 is symmetrically arranged with the both sides of feeder line 2；Earth plate 3 is rectangular configuration, and any one right angle is cut
Angle is handled, so as to form corner cut structure；In specific implementation, as shown in figure 1, corner cut structure setting is close to the straight of the upper end of feeder line 2
On angle, and form symmetrical structure.
Formed with gap between earth plate 3 and feeder line 2.Impedance matching of the feeding gap to antenna is present largely
Influence, co-planar waveguide monopole day and micro-strip day plane single pole sub antenna are much like, somewhat debug the feeding gap of antenna
It is obtained with relatively good impedance matching.
As shown in Fig. 2 being accessed using vector network analyzer device on the interface of ultra wide band circular-shaped monopole sub-antenna, this is measured
The bandwidth range of antenna is less than -10dB in 3.6GHz-16.8GHz, return loss, the circular-shaped monopole sub-antenna with feed microstrip line
Compare, bandwidth has very big lifting, and has reached the design requirement of ultra-wideband antenna.
As shown in figure 3, by experiment simulation, the E faces of the ultra wide band circular-shaped monopole sub-antenna and the antenna pattern tool in H faces
There is certain omni-directional, it is wide close to distribution uniform, radiation scope in the range of 360 degree in whole ultra wide band frequency domain.
Claims (2)
1. a kind of ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback, its feature include：Circular radiation paster (1),
Feeder line (2), earth plate (3) and dielectric-slab (4)；
The circular radiation paster (1), feeder line (2) and earth plate (3) are provided with the surface of the dielectric-slab (4)；The circle
Shape radiation patch (1) is connected with the upper end of the feeder line (2)；The lower end of the feeder line (2) is provided with to be connect with external connection
Mouthful；The earth plate (3) is symmetrically arranged with the both sides of the feeder line (2)；The earth plate (3) is rectangular configuration, and arbitrarily
One right angle is corner cut structure；Formed with gap between the earth plate (3) and the feeder line (2).
2. ultra wide band circular-shaped monopole sub-antenna according to claim 1, it is characterized in that：The corner cut structure setting is close
On the right angle of feeder line (2) upper end, and form symmetrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793186.XU CN206850018U (en) | 2017-07-03 | 2017-07-03 | Ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793186.XU CN206850018U (en) | 2017-07-03 | 2017-07-03 | Ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850018U true CN206850018U (en) | 2018-01-05 |
Family
ID=60804211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720793186.XU Expired - Fee Related CN206850018U (en) | 2017-07-03 | 2017-07-03 | Ultra wide band circular-shaped monopole sub-antenna based on coplanar wave guide feedback |
Country Status (1)
| Country | Link |
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| CN (1) | CN206850018U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429376A (en) * | 2019-07-31 | 2019-11-08 | 西安天和防务技术股份有限公司 | Antenna element, aerial array and antenna |
| CN110707424A (en) * | 2019-10-22 | 2020-01-17 | 中国电子科技集团公司信息科学研究院 | Miniaturized ultra-wideband antenna |
| CN114552193A (en) * | 2022-02-28 | 2022-05-27 | 上海师范大学 | High-gain broadband printing sleeve antenna |
| CN114725671A (en) * | 2022-05-10 | 2022-07-08 | 安徽大学 | Bidirectional circularly polarized unit antenna and array antenna |
-
2017
- 2017-07-03 CN CN201720793186.XU patent/CN206850018U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429376A (en) * | 2019-07-31 | 2019-11-08 | 西安天和防务技术股份有限公司 | Antenna element, aerial array and antenna |
| CN110707424A (en) * | 2019-10-22 | 2020-01-17 | 中国电子科技集团公司信息科学研究院 | Miniaturized ultra-wideband antenna |
| CN114552193A (en) * | 2022-02-28 | 2022-05-27 | 上海师范大学 | High-gain broadband printing sleeve antenna |
| CN114725671A (en) * | 2022-05-10 | 2022-07-08 | 安徽大学 | Bidirectional circularly polarized unit antenna and array antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20180703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |