CN203180055U - Improved square spiral ultra-wideband antenna - Google Patents
Improved square spiral ultra-wideband antenna Download PDFInfo
- Publication number
- CN203180055U CN203180055U CN 201220676587 CN201220676587U CN203180055U CN 203180055 U CN203180055 U CN 203180055U CN 201220676587 CN201220676587 CN 201220676587 CN 201220676587 U CN201220676587 U CN 201220676587U CN 203180055 U CN203180055 U CN 203180055U
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- spiral
- wideband
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Abstract
An ultra-wideband antenna with a square spiral structure comprises a radiation element, a coplanar waveguide, a dielectric plate and a feed port; the radiation element and the coplanar waveguide are positioned on a same surface of the dielectric plate; the radiation element is connected with one end of the coplanar waveguide; and the other end of the coplanar waveguide is connected with the feed port. The radiation element is divided with two radiation units with the square spiral structure. The improved square spiral ultra-wideband antenna is used in an ultra-wideband communication system, is small in size, is easy to be integrated in a printed circuit board, and is almost uniformly distributed in a 360-degree scope in a whole ultra-wideband frequency domain.
Description
Technical field
The utility model relates to a kind of antenna of wireless communication technology field, specifically is a kind of ultra wideband fractal antenna of coplanar wave guide feedback.
Background technology
Along with the develop rapidly of modern information technologies, super-broadband tech is used more and more in various fields such as electronic countermeasures, radar, sonar, geological prospectings.Ultra broadband has solved the great difficult problem of for many years relevant propagation aspect of puzzlement conventional wireless techniques, advantage such as have that antijamming capability is strong, transmission rate is high, ultra wide bandwidth, consumed power are few, good confidentiality, transmitted power are little.Ultra-wideband antenna is one of key technology of ultra broadband.Common broad-band antenna is because frequency dispersion and spatial dispersion can not send ultrashort pulse usually, and radio ultra wide band system needs special antenna to send or receive the ultrashort pulse of nanosecond rise time.
The utility model a kind of ultra-wideband antenna with co-planar waveguide excitation line, though this antenna can be realized ultra wideband.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of ultra wideband fractal antenna of coplanar wave guide feedback.The omnidirectional radiation characteristic of the utility model antenna is better, compact conformation, volume is little, and is easy to be integrated in the printed circuit board, and in whole ultra wide band frequency territory distribution uniform in the 360 degree scopes almost.
The technical scheme that the utility model adopts is:
A kind of improved side's spiral ultra-wideband antenna, it is characterized in that: comprise a medium substrate medium substrate above, be printed with radiating element and feed element above the medium substrate, an end of radiant element 3 and co-planar waveguide 2 links to each other, and the other end of co-planar waveguide 2 links to each other with feed port 4.
Described a kind of improved side's helical antenna, it is characterized in that: antenna has double-spiral structure, and the number of turns of spiral is two circles half, and radius of turn is dwindled gradually, and two helical structures have identical size and shape, but also asymmetric, because of the length difference of its feed groove.
Described a kind of improved side's helical antenna, it is characterized in that: the width of square helical antenna is identical all the time.
Described a kind of improved side's helical antenna is characterized in that: described radiating element is the chip unit of both sides' spiral.
Described a kind of improved helical antenna of putting is characterized in that: coplanar wave guide feedback, and radiating element feed microstrip line links to each other.
The utility model at first is transferred to co-planar waveguide by feed port with the TEM ripple, in order to be complementary with general transmission line impedance, co-planar waveguide is set to 50 Ω impedances, and co-planar waveguide is connected with radiant element, give radiant element with transmission of electromagnetic energy, by the outside emittance of radiant element.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model is because at radiative unit structure employing side helical structure, and antenna can obtain similar surface current and distribute and have to be with characteristics more for different frequencies, utilizes this characteristic to realize the performance of ultra-wideband antenna.Adopt coplanar wave guide feedback, the bandwidth that antenna not only can be realized and directional diagram, and be integrated in the printed circuit board easily.Therefore, the utlity model has compact conformation, volume is little, and is easy to be integrated in the printed circuit board, has the advantage of better omnidirectional radiation characteristic simultaneously.The utility model meets the FCC specified standard, can be used for ultra-wideband communication system.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of ultra broadband side's helical antenna of a kind of coplanar wave guide feedback of the utility model;
Fig. 2 is the end view of the ultra wideband fractal antenna of a kind of coplanar wave guide feedback of the utility model;
Embodiment
As shown in Figure 1 and Figure 2, the utility model comprises: dielectric plate 1, co-planar waveguide 2, radiant element 3 and feed port 4, radiant element 3 and co-planar waveguide 2 are positioned at the same surface of dielectric plate 1, and an end of radiant element 3 and co-planar waveguide 2 links to each other, and the other end of co-planar waveguide 2 links to each other with feed port 4.
Described radiant element 3 is divided into two square helical antennas.
Described radiant element has double-spiral structure, and the number of turns of spiral is two circles half, and radius of turn is dwindled gradually.Two helical structures have identical size and shape, but also asymmetric, because of the length difference of its feed groove.
Because this antenna size and thickness are all less, be integrated in the printed circuit board easily.In addition, because this antenna structure is simple and production easily, so the cost of this antenna is lower.
Claims (5)
1. improved side's spiral ultra-wideband antenna, it is characterized in that: comprise a medium substrate (1), be printed with radiating element and feed element above the medium substrate, radiant element (3) links to each other with an end of co-planar waveguide (2), and the other end of co-planar waveguide (2) links to each other with feed port (4).
2. a kind of improved side's helical antenna according to claim 1, it is characterized in that: antenna has double-spiral structure, and the number of turns of spiral is two circles half, radius of turn is dwindled gradually, two helical structures have identical size and shape, but also asymmetric, because of the length difference of its feed groove.
3. a kind of improved side's helical antenna according to claim 1, it is characterized in that: the width of square helical antenna is identical all the time.
4. a kind of improved side's helical antenna according to claim 1 is characterized in that: described radiating element is the chip unit of both sides' spiral.
5. according to claim 1 or 3 described a kind of improved helical antennas of putting, it is characterized in that: coplanar wave guide feedback, and radiating element feed microstrip line links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676587 CN203180055U (en) | 2012-12-10 | 2012-12-10 | Improved square spiral ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676587 CN203180055U (en) | 2012-12-10 | 2012-12-10 | Improved square spiral ultra-wideband antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180055U true CN203180055U (en) | 2013-09-04 |
Family
ID=49076715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220676587 Expired - Fee Related CN203180055U (en) | 2012-12-10 | 2012-12-10 | Improved square spiral ultra-wideband antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180055U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730721A (en) * | 2014-01-02 | 2014-04-16 | 山西大学 | Bow-tie slot antenna based on coplanar waveguide feed |
| CN107959111A (en) * | 2017-11-20 | 2018-04-24 | 河南师范大学 | A kind of double frequency electricity small gap antenna |
| CN108110416A (en) * | 2017-12-19 | 2018-06-01 | 河南师范大学 | " work " font double frequency slit antenna based on coplanar wave guide feedback |
-
2012
- 2012-12-10 CN CN 201220676587 patent/CN203180055U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730721A (en) * | 2014-01-02 | 2014-04-16 | 山西大学 | Bow-tie slot antenna based on coplanar waveguide feed |
| CN103730721B (en) * | 2014-01-02 | 2016-03-30 | 山西大学 | Based on the bow-tie slot of coplanar wave guide feedback |
| CN107959111A (en) * | 2017-11-20 | 2018-04-24 | 河南师范大学 | A kind of double frequency electricity small gap antenna |
| CN107959111B (en) * | 2017-11-20 | 2024-03-08 | 河南师范大学 | Dual-frequency electric small slot antenna |
| CN108110416A (en) * | 2017-12-19 | 2018-06-01 | 河南师范大学 | " work " font double frequency slit antenna based on coplanar wave guide feedback |
| CN108110416B (en) * | 2017-12-19 | 2023-07-25 | 河南师范大学 | I-shaped dual-frequency slot antenna based on coplanar waveguide feed |
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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: 20130904 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |