CN103872439A - Square spiral ultra-wideband antenna with square slot inside - Google Patents
Square spiral ultra-wideband antenna with square slot inside Download PDFInfo
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- CN103872439A CN103872439A CN201210528230.6A CN201210528230A CN103872439A CN 103872439 A CN103872439 A CN 103872439A CN 201210528230 A CN201210528230 A CN 201210528230A CN 103872439 A CN103872439 A CN 103872439A
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Abstract
A square spiral ultra-wideband antenna with a square slot inside comprises a radiation element, a coplanar waveguide, a dielectric plate, the square slot, and a feed port. The radiation element and the coplanar waveguide are located on the same surface of the dielectric plate. The radiation element is connected to one end of the coplanar waveguide, the other end of which is connected to the feed port. The radiation element comprises two radiation units of square spiral structures. The antenna is used for an ultra-wideband communication system. The antenna is small in size and is easy to be integrated into a printed circuit board. The antenna is distributed evenly within 360 degree of the whole ultra-wideband domain.
Description
Technical field
The present invention relates to a kind of antenna of wireless communication technology field, specifically 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 puzzlement conventional wireless techniques relevant propagation aspect for many years, the advantage such as have that antijamming capability is strong, transmission rate is high, ultra wide bandwidth, consumption electric energy 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 conventionally, and radio ultra wide band system needs special antenna to send or receive the ultrashort pulse of nanosecond rise time.
The invention discloses a kind of ultra-wideband antenna with co-planar waveguide excitation line, this antenna can be realized ultra wideband.
[0004] the present invention will introduce antenna fluting technology.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of ultra wideband fractal antenna of coplanar wave guide feedback.The omnidirectional radiation characteristic of antenna of the present invention is better, compact conformation, volume is little, and is easy to be integrated in printed circuit board, and in whole ultra wide band frequency territory distribution uniform within the scope of 360 degree almost.
The technical solution adopted in the present invention is:
In one side's spiral, open square groove ultra-wideband antenna, it is characterized in that: comprise a medium substrate medium substrate above, above medium substrate, be printed with radiating element and feed element, radiant element 3 is connected with one end of co-planar waveguide 2, and the other end of co-planar waveguide 2 is connected with feed port 4.
In described one side's spiral, open square groove ultra-wideband antenna, it is characterized in that: antenna has double-spiral structure, 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.
In described one side's spiral, open square groove ultra-wideband antenna, it is characterized in that: the width of square helical antenna is identical all the time.
In described one side's spiral, open square groove ultra-wideband antenna, it is characterized in that: be parallel to spiral groove end in the inside of square spiral and add one and wait elongated slot.
In described one side's spiral, open square groove ultra-wideband antenna, it is characterized in that: described radiating element is the chip unit of both sides' spiral.
In described one side's spiral, open square groove ultra-wideband antenna, it is characterized in that: coplanar wave guide feedback, and radiating element feed microstrip line is connected.
First the present invention is transferred to co-planar waveguide by feed port by TEM ripple, in order to match with general transmission line impedance, co-planar waveguide is set to 50 Ω impedances, and co-planar waveguide is connected with radiant element, by transmission of electromagnetic energy to radiant element, by the outside emittance of radiant element.
The present invention compares with prior art, and its effect is actively with obvious.The present invention is because of the side's of employing helical structure on radiative unit structure, and antenna, for different frequencies, can obtain similar Surface current distribution and have multi-band property, 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 easily integrated in printed circuit board.Therefore, the present invention has compact conformation, and volume is little, and is easy to be integrated in printed circuit board, has advantages of better omnidirectional radiation characteristic simultaneously.The present invention meets FCC specified standard, can be used for ultra-wideband communication system.
Accompanying drawing explanation
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 present invention;
Fig. 2 is the end view of the ultra wideband fractal antenna of a kind of coplanar wave guide feedback of the present invention;
Embodiment
As shown in Figure 1 and Figure 2, the present invention includes: 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 radiant element 3 is connected with one end of co-planar waveguide 2, the other end of co-planar waveguide 2 is connected with feed port 4.
Radiant element 3 by both party helical antenna forms, and the side's of employing helical structure is realized antenna ultra wideband.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.
The spiral center of described radiant element, opens a square groove.
Because this antenna size and thickness are all less, be easily integrated in printed circuit board.In addition, because this antenna structure is simple and easily production, so the cost of this antenna is lower.
Claims (6)
1. in a square spiral, open square groove ultra-wideband antenna, it is characterized in that: comprise a medium substrate medium substrate above, above medium substrate, be printed with radiating element and feed element, radiant element 3 is connected with one end of co-planar waveguide 2, and the other end of co-planar waveguide 2 is connected with feed port 4.
2. in one side according to claim 1 spiral, open square groove ultra-wideband antenna, it is characterized in that: antenna has double-spiral structure, 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. in one side according to claim 1 spiral, open square groove ultra-wideband antenna, it is characterized in that: the width of square helical antenna is identical all the time.
4. in one side according to claim 1 spiral, open square groove ultra-wideband antenna, it is characterized in that: be parallel to spiral groove end in the inside of square spiral and add one and wait elongated slot.
5. in one side according to claim 1 spiral, open square groove ultra-wideband antenna, it is characterized in that: described radiating element is the chip unit of both sides' spiral.
6. according to opening square groove ultra-wideband antenna in the one side's spiral described in claim 1 or 3, it is characterized in that: coplanar wave guide feedback, and radiating element feed microstrip line is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528230.6A CN103872439A (en) | 2012-12-10 | 2012-12-10 | Square spiral ultra-wideband antenna with square slot inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528230.6A CN103872439A (en) | 2012-12-10 | 2012-12-10 | Square spiral ultra-wideband antenna with square slot inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103872439A true CN103872439A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210528230.6A Pending CN103872439A (en) | 2012-12-10 | 2012-12-10 | Square spiral ultra-wideband antenna with square slot inside |
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| Country | Link |
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| CN (1) | CN103872439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232445A (en) * | 2018-01-30 | 2018-06-29 | 厦门大学嘉庚学院 | Triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of work |
| CN113394566A (en) * | 2021-05-28 | 2021-09-14 | 哈尔滨工业大学 | All-metal metamaterial lens based on near-field convergence function and phase shift amount design method thereof |
-
2012
- 2012-12-10 CN CN201210528230.6A patent/CN103872439A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232445A (en) * | 2018-01-30 | 2018-06-29 | 厦门大学嘉庚学院 | Triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of work |
| CN108232445B (en) * | 2018-01-30 | 2023-05-09 | 厦门大学嘉庚学院 | Triangular spiral slot-hexagonal array composite ultra-wideband antenna and working method thereof |
| CN113394566A (en) * | 2021-05-28 | 2021-09-14 | 哈尔滨工业大学 | All-metal metamaterial lens based on near-field convergence function and phase shift amount design method thereof |
| CN113394566B (en) * | 2021-05-28 | 2022-09-06 | 哈尔滨工业大学 | All-metal metamaterial lens and phase shift amount design method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |