CN203377378U - An omnidirectional antenna - Google Patents
An omnidirectional antenna Download PDFInfo
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- CN203377378U CN203377378U CN201320427202.5U CN201320427202U CN203377378U CN 203377378 U CN203377378 U CN 203377378U CN 201320427202 U CN201320427202 U CN 201320427202U CN 203377378 U CN203377378 U CN 203377378U
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- outer conductor
- inner wire
- antenna
- omnidirectional antenna
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Abstract
The utility model discloses an omnidirectional antenna comprising an antenna body. The antenna body comprises an outer conductor and an inner conductor which are produced by metallic material. The outer conductor has a hollow interior. The inner conductor is arranged in the outer conductor. Multiple grooves are disposed on the outer conductor. The omnidirectional antenna provided in the embodiment of the utility model has characteristics of simple structure, high gain, easy production, and low cost.
Description
Technical field
The utility model relates to communication technical field, relates in particular to a kind of omnidirectional antenna.
Background technology
Omnidirectional antenna, refer to and show as 360 ° of homogeneous radiations on the horizontal plane direction, shows as the antenna of certain beamwidth on the vertical plane direction.The omnidirectional antenna of general application high-gain in mobile communication base station system, to realize larger coverage.In order to improve the gain of antenna, generally, on the vertical axis of antenna, more radiating element can be set, radiating element quantity is more, gains higher.The feeding classification of radiating element, generally have and present mode, series feed mode and middle feedback mode.
Wherein, and feedback omnidirectional antenna more complicated, can use coaxial cable and power splitter to the radiating element feed, when considering to support radiating element, also to eliminate the impact of feeding network on radiation characteristic, so complex structure, cost is higher.But, and the broader bandwidth of feedback omnidirectional antenna, radiation characteristic is easily controlled.
With respect to above-mentioned and feedback omnidirectional antenna, although the bandwidth of series feed omnidirectional antenna is narrower, structure is relatively simpler, and the form of antenna is also varied, uses morely to be series feed layered transducer elements that the coaxial series fed antenna of half-wavelength, printed board scribe etc.
Middle feedback omnidirectional antenna is exactly the parallel connection of two series fed antennas in fact, and distributing point is moved on in the middle of antenna, and structure is than series feed complexity, and the directional diagram bandwidth compensates to some extent, but still is narrow-band antenna.
Series feed and center-fed antenna can be used in WLAN(Wireless Local Area Networks, WLAN) in the wireless communication system not high to bandwidth requirement such as wireless access system, group system.
In above-mentioned three kinds of omnidirectional antennas, the structure of series feed omnidirectional antenna is relatively simpler, but the part of the above-mentioned coaxial series fed antenna of half-wavelength of mentioning is more, need to tens half-wavelength coaxial radiation element solder together, produce comparatively complicated.And the series feed layered transducer elements that printed board is scribed, high conformity, convenient for production, but cost is higher, particularly uses the large antenna of this conceptual design, and cost performance is lower.
Summary of the invention
The utility model embodiment proposes a kind of omnidirectional antenna, simple in structure, easily produce, and cost is low.
The utility model embodiment provides a kind of omnidirectional antenna, comprises antenna body; Described antenna body comprises outer conductor and the inner wire of being made by metal material; Described outer conductor boring, described inner wire is positioned at the inside of described outer conductor; Described outer conductor is provided with a plurality of flutings.
Wherein, the direction of a plurality of flutings on described outer conductor is interlaced, is helical arrangement.
Further, the cross section of described outer conductor is circle or polygon, and the cross section of described inner wire is circle or polygon.
In one embodiment, the size of the cross section of the diverse location on described inner wire is not identical.
Further, described omnidirectional antenna also comprises outer cover, base and cable end; Described outer cover covers described antenna body, and described floor installation is in the bottom of described outer cover; The bottom of the outer conductor of described antenna body is connected with described base; The bottom of the inner wire of described antenna body is connected with the inner wire of described cable end; The outer conductor of described cable end is fixed on described base.
The omnidirectional antenna that the utility model embodiment provides has following beneficial effect: antenna body is comprised of outer conductor and inner wire, the outer conductor boring, inner wire is arranged on the inside of outer conductor, by the fluting electromagnetic radiation energy on outer conductor, simple in structure, high-gain.And outer conductor and inner wire can process on the basis of existing section bar, therefore with low cost.In addition, inner wire and outer conductor are respectively integrated naturally, have saved welding sequence, are convenient to produce.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below will the accompanying drawing of embodiment be briefly described.
Fig. 1 is the structural representation of an embodiment of the omnidirectional antenna that provides of the utility model;
Fig. 2 is that the omnidirectional antenna shown in Fig. 1 is along the axial sectional view of A;
Fig. 3 is the structural representation of another embodiment of the omnidirectional antenna that provides of the utility model;
Fig. 4 is that the omnidirectional antenna shown in Fig. 3 is along the axial sectional view of B;
Fig. 5 is the structural representation of an embodiment of the inner wire of the omnidirectional antenna that provides of the utility model;
Fig. 6 is the structural representation of another embodiment of the inner wire of the omnidirectional antenna that provides of the utility model;
Fig. 7 is the structural representation of another embodiment of the omnidirectional antenna that provides of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
Referring to Fig. 1, it is the structural representation of an embodiment of the omnidirectional antenna that provides of the utility model.
The utility model embodiment provides a kind of omnidirectional antenna, comprises antenna body.Described antenna body comprises outer conductor 1 and the inner wire 2 of being made by metal material.Wherein, outer conductor 1 boring, inner wire 2 is positioned at the inside of described outer conductor 1; And outer conductor 1 is provided with a plurality of flutings 3.
In one embodiment, inner wire 2 is fixed on the inside of outer conductor 1 by plastic supporting pieces.
The omnidirectional antenna that the present embodiment provides adopts series feed mode, is upright antenna, and outer conductor 1 and inner wire 2 are upright wire metallic object.During concrete enforcement, by the fluting 3 electromagnetic radiation energy on outer conductor 1.
Wherein, the certain distance in a plurality of flutings 3 intervals on outer conductor 1 is arranged.For example, the distance at interval is L, L >=5mm.Preferably, the direction of a plurality of flutings 3 is interlaced, is helical arrangement, to realize 360 ° of homogeneous radiations.
More specifically, the cross section of outer conductor 1 is circle or polygon, and the cross section of inner wire 2 is circle or polygon.
In one embodiment, as shown in Figure 1, outer conductor 1 is the cylindrical metal pipe, and metal tube is provided with a plurality of flutings 3.Referring to Fig. 2, be that the omnidirectional antenna shown in Fig. 1 is along the axial sectional view of A.The cross section of outer conductor 1 is circular, and the cross section of inner wire 2 is circular.And the diameter of the circular cross section of outer conductor 1 is greater than the circular cross section diameter of inner wire 2.
Referring to Fig. 3, it is the structural representation of another embodiment of the omnidirectional antenna that provides of the utility model.
In another embodiment, outer conductor 1 is the square column metal tube, and metal tube is provided with a plurality of flutings 3.Referring to Fig. 4, be that the omnidirectional antenna shown in Fig. 3 is along the axial sectional view of B.The cross section of outer conductor 1 is square, and the cross section of inner wire 2 is circular.And the length of side of the square cross section of outer conductor 1 is greater than the circular cross section diameter of inner wire 2.
It should be noted that, the utility model only be take the embodiment shown in above-mentioned Fig. 1 to Fig. 4 as example, structure to antenna body describes, the shape of cross section of outer conductor is not limited to circular and square, the shape of cross section of inner wire also is not limited to circle, can also be other shapes such as ellipse, pentagon.
In addition, according to the coupling requirement of antenna, such as the size that requires impedance matching, requirement and outer conductor, be complementary etc., the shape and size of the cross section of inner wire 2, can change to some extent in different positions.That is, the size of the cross section of the diverse location on inner wire 2 is not identical.
Referring to Fig. 5, it is the structural representation of an embodiment of the inner wire of the omnidirectional antenna that provides of the utility model.According to the coupling requirement of antenna, on inner wire 2, not identical along the size of A1, A2, A3 and the axial cross section of A4.
Referring to Fig. 6, it is the structural representation of another embodiment of the inner wire of the omnidirectional antenna that provides of the utility model.According to the coupling requirement of antenna, on inner wire 2, not identical along the size of B1, B2 and the axial cross section of B3.
It should be noted that, the utility model only be take the embodiment shown in above-mentioned Fig. 5 and Fig. 6 as example, and the structure of inner wire is described.The structure of inner wire is not limited to this, in the middle of concrete enforcement, can require to carry out emulation and debugging according to the coupling of antenna, thereby determine the shape and size of inner wire.
During concrete application, the omnidirectional antenna that above-described embodiment provides can use in conjunction with feeder cable, after feed, electromagnetic field is present between inner wire and outer conductor, when electromagnetic wave transmits, run into outer fluting of leading on this, just from fluting electromagnetic radiation energy forward.
Referring to Fig. 7, it is the structural representation of another embodiment of the omnidirectional antenna that provides of the utility model.
The utility model embodiment provides a kind of omnidirectional antenna, comprises antenna body, outer cover 4, base 5 and cable end 6.
Wherein, antenna body comprises outer conductor 1 and inner wire 2, and its structure is identical with the structure of the antenna body of above-described embodiment, at this, is not described in detail.
Outer cover 4 covers described antenna body, and base 5 is arranged on the bottom of outer cover 4.The bottom of the outer conductor 1 of described antenna body is connected with base 5; The bottom of the inner wire 2 of described antenna body is connected with the inner wire of cable end 6; The outer conductor of described cable end 6 is fixed on described base 5.Cable end 6 is distributing point.
Optionally, the bottom of the outer conductor 1 of antenna body and base 5 welding, the bottom of the inner wire 2 of antenna body and the welding of the inner wire of cable end 6, the outer conductor of base 5 and cable end 6 is threaded.
During concrete enforcement, the cable end 6 of above-mentioned omnidirectional antenna connects feeder cable, and after feed, electromagnetic field is present between inner wire and outer conductor, when electromagnetic wave transmits, has run into outer fluting of leading on this forward, just from fluting electromagnetic radiation energy.
The omnidirectional antenna that the utility model embodiment provides, comprise outer conductor and inner wire, the outer conductor boring, and inner wire is arranged on the inside of outer conductor, by the fluting electromagnetic radiation energy on outer conductor, simple in structure, high-gain.And outer conductor and inner wire can process on the basis of existing section bar, therefore with low cost.In addition, inner wire and outer conductor are respectively integrated naturally, have saved welding sequence, are convenient to produce.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (8)
1. an omnidirectional antenna, is characterized in that, comprises antenna body;
Described antenna body comprises outer conductor and the inner wire of being made by metal material; Described outer conductor boring, described inner wire is positioned at the inside of described outer conductor; Described outer conductor is provided with a plurality of flutings.
2. omnidirectional antenna as claimed in claim 1, is characterized in that, the direction of a plurality of flutings on described outer conductor is interlaced, is helical arrangement.
3. omnidirectional antenna as claimed in claim 1, is characterized in that, the cross section of described outer conductor is circle or polygon.
4. omnidirectional antenna as claimed in claim 1, is characterized in that, the cross section of described inner wire is circle or polygon.
5. omnidirectional antenna as claimed in claim 4, is characterized in that, the size of the cross section of the diverse location on described inner wire is not identical.
6. omnidirectional antenna as claimed in claim 1, is characterized in that, described inner wire is fixed on the inside of described outer conductor by plastic supporting pieces.
7. omnidirectional antenna as described as claim 1 to 6 any one, is characterized in that, described omnidirectional antenna also comprises outer cover, base and cable end;
Described outer cover covers described antenna body, and described floor installation is in the bottom of described outer cover;
The bottom of the outer conductor of described antenna body is connected with described base; The bottom of the inner wire of described antenna body is connected with the inner wire of described cable end; The outer conductor of described cable end is fixed on described base.
8. omnidirectional antenna as claimed in claim 7, it is characterized in that, the bottom of the outer conductor of described antenna body and the welding of described base, the bottom of the inner wire of described antenna body and the welding of the inner wire of described cable end, the outer conductor of described base and described cable end is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427202.5U CN203377378U (en) | 2013-07-17 | 2013-07-17 | An omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427202.5U CN203377378U (en) | 2013-07-17 | 2013-07-17 | An omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203377378U true CN203377378U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320427202.5U Expired - Fee Related CN203377378U (en) | 2013-07-17 | 2013-07-17 | An omnidirectional antenna |
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| Country | Link |
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| CN (1) | CN203377378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956583B (en) * | 2014-04-23 | 2016-06-29 | 泰兴市迅达通讯器材有限公司 | A kind of super-wide band high-gain omnidirectional antenna |
-
2013
- 2013-07-17 CN CN201320427202.5U patent/CN203377378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956583B (en) * | 2014-04-23 | 2016-06-29 | 泰兴市迅达通讯器材有限公司 | A kind of super-wide band high-gain omnidirectional antenna |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20200717 |