CN103872441A - Ultra-wideband antenna with pentagon groove in square spiral component - Google Patents
Ultra-wideband antenna with pentagon groove in square spiral component Download PDFInfo
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- CN103872441A CN103872441A CN201210532146.1A CN201210532146A CN103872441A CN 103872441 A CN103872441 A CN 103872441A CN 201210532146 A CN201210532146 A CN 201210532146A CN 103872441 A CN103872441 A CN 103872441A
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Abstract
Provided is an ultra-wideband antenna with a pentagon groove in a square spiral component. The ultra-wideband antenna comprises a radiation element, coplanar waveguide, a dielectric plate, the pentagon groove and a feed port. The radiation element and the coplanar waveguide are arranged on the same surface of the dielectric plate. The radiation element is connected with one end of the coplanar waveguide. The other end of the coplanar waveguide is connected with the feed port. The radiation element is divided into two radiation units with square spiral structures. The ultra-wideband antenna is applied to an ultra-wideband communication system. The ultra-wideband antenna is small in volume so that the ultra-wideband antenna can be easily integrated in a printed circuit board. Besides, the ultra-wideband antenna is evenly distributed in the whole ultra-wideband frequency domain within a range of almost 360 degrees.
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.
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 pentagon 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 pentagon 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 pentagon 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 pentagon groove ultra-wideband antenna, it is characterized in that: the inside at square spiral adds a circular recess.
In described one side's spiral, open pentagon 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 pentagon 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.
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 pentagon 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 pentagon 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 pentagon 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 pentagon 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 pentagon groove ultra-wideband antenna, it is characterized in that: the inside at square spiral adds a circular recess.
5. in one side according to claim 1 spiral, open pentagon groove ultra-wideband antenna, it is characterized in that: described radiating element is the chip unit of both sides' spiral.
6. according to opening pentagon 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 |
|---|---|---|---|
| CN201210532146.1A CN103872441A (en) | 2012-12-11 | 2012-12-11 | Ultra-wideband antenna with pentagon groove in square spiral component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532146.1A CN103872441A (en) | 2012-12-11 | 2012-12-11 | Ultra-wideband antenna with pentagon groove in square spiral component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103872441A true CN103872441A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210532146.1A Pending CN103872441A (en) | 2012-12-11 | 2012-12-11 | Ultra-wideband antenna with pentagon groove in square spiral component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103872441A (en) |
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2012
- 2012-12-11 CN CN201210532146.1A patent/CN103872441A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |