CN103746177B - A kind of wideband omnidirectional antenna - Google Patents
A kind of wideband omnidirectional antenna Download PDFInfo
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- CN103746177B CN103746177B CN201310518741.4A CN201310518741A CN103746177B CN 103746177 B CN103746177 B CN 103746177B CN 201310518741 A CN201310518741 A CN 201310518741A CN 103746177 B CN103746177 B CN 103746177B
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- floor
- limit
- omnidirectional antenna
- crack
- tablet
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Abstract
The invention discloses a kind of wideband omnidirectional antenna, comprise floor and radiant body, described radiant body is fixed on described floor, and described floor is provided with crack, and the length in described crack is less than the length on described floor. Crack is set on floor, has increased the effective dimensions on floor, thereby under the prerequisite that does not increase antenna physical size, increased the bandwidth of operation of antenna, reduced manufacturing cost simultaneously.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of wideband omnidirectional antenna.
Background technology
Radio-frequency antenna is the requisite hardware facility of field of wireless communication, and it plays vital effect in wireless communication system. Radio-frequency antenna should possess the features such as large bandwidth, isotropic directivity, cost be low. The Structure Designing Problem that should note antenna in the industrial design of antenna, good structural design can be simplified antenna structure, reduces the use of manufactured materials, reduces manufacturing cost. Therefore efficient antenna structure reasonable in design how is the problem that each communications equipment manufacturer need to be considered.
Emitter in existing bandwidth omnidirectional antenna adopts single wimble structure, and the single wimble structure materials'use of this solid is too much, and manufacturing cost is high, in addition, and its bandwidth of operation relative narrower.
Summary of the invention
Technical problem to be solved by this invention is, the wideband omnidirectional antenna of a kind of bandwidth of operation wide ranges, simple in structure, low cost of manufacture is provided.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of wideband omnidirectional antenna, comprises floor and radiant body, and described radiant body is fixed on described floor, and described floor is provided with crack, and the length in described crack is less than the length on described floor.
Wherein, described crack is extended to described floor center position by described floor edge; The end in described crack divides many strips crack.
Further, described floor is provided with many cracks, and described many cracks is evenly distributed on described floor.
Further, described radiant body comprises the tablet vertical with described floor.
Concrete, described tablet is the rectangle that a quilt cuts off four angles; Described tablet comprises eight limits, is respectively first side, Second Edge, the 3rd limit, the 4th limit, the 5th limit, hexagon, the 7th limit, the 8th limit; Wherein, first side is parallel to the 5th limit, and first side is perpendicular to floor; The 3rd limit is parallel to the 7th limit; The symmetry axis that the line of the mid point on the 3rd limit and the 7th limit is described tablet is provided with inserting groove on described symmetry axis, and the length of described inserting groove is less than L; Wherein, L is the distance on seven limits, the 3rd limit to the.
Further, described radiant body comprises multiple tablets, and described multiple tablets are plugged in together by described crack; Described multiple tablet is plugged in together by described inserting groove; Angle between described multiple tablet equates.
The splicing position of described multiple tablets is welded with scolding tin.
Further, described radiant body is fixed on the center on described floor by a nonmetal column.
Further, described wideband omnidirectional antenna also comprises feed line, and the heart yearn of described feed line is connected with described radiant body, and the ground wire of described feed line is connected with described floor.
Described tablet is for covering copper pcb board or metallic plate.
Implement the embodiment of the present invention, there is following beneficial effect: crack is set on floor, has increased the effective dimensions on floor, thereby under the prerequisite that does not increase antenna physical size, increased the bandwidth of operation of antenna, reduced manufacturing cost simultaneously; Radiant body adopts laminated structure, has simplified whole antenna structure, has reduced materials being fabricated, has further reduced manufacturing cost.
Brief description of the drawings
Fig. 1 is the perspective view of an embodiment of wideband omnidirectional antenna provided by the invention;
Fig. 2 is the perspective view of another embodiment of wideband omnidirectional antenna provided by the invention;
Fig. 3 is the perspective view of another embodiment of wideband omnidirectional antenna provided by the invention;
Fig. 4 is the top view of an embodiment of wideband omnidirectional antenna provided by the invention;
Fig. 5 is the front view of an embodiment of wideband omnidirectional antenna provided by the invention;
Fig. 6 is the effect schematic diagram that the floor effective dimensions increasing behind crack is set on the floor of wideband omnidirectional antenna provided by the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It is the structural representation of the embodiment of wideband omnidirectional antenna provided by the invention referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, this wideband omnidirectional antenna comprises floor 1 and radiant body 2, radiant body 2 is fixed on floor 1, floor 1 (is for example provided with crack, crack 11 as shown in Figure 1), the length in described crack is less than the length on described floor.
In one embodiment, crack is extended to floor center position by floor edge, and the end in crack divides many strips crack. For example, in embodiment as shown in Figure 4, the end in crack 11 divides 12He Zi crack, sub-crack 13. More specifically, the end in 13Jun Yi crack, 12He Zi crack, sub-crack 11 is top, extends respectively to the both sides in crack 11, forms circular-arc; And 12He Zi crack 13, sub-crack is with respect to crack 11 symmetries. Wherein, the width in sub-crack 12 is narrowed to its end gradually by its top, and the width in sub-crack 13 is narrowed to its end gradually by its top.
Therein one preferred embodiment in, floor 1 is provided with many cracks, described many cracks is evenly distributed on floor 1. In embodiment as shown in Figure 4, floor 1 adopts circular configuration, floor 1 is provided with crack 11 and crack 14, the end in crack 11 divides circular-arc sub-crack 12 and circular-arc sub-crack 13, the end in crack 14 divides circular-arc sub-crack 15 and circular-arc sub-crack 16, crack 11 and the sub-crack splitting off thereof, and crack 14 and the sub-crack that splits off thereof are with respect to a diameter (as the dotted line 18 in Fig. 4) axial symmetry on floor 1.
The present embodiment arranges behind crack on floor, the effective dimensions (for example, being equivalent to increase region A as shown in Figure 6) that has been equivalent to increase floor, antenna effective dimensions is larger, antenna bandwidth of operation is wider, thereby under the prerequisite that does not increase antenna physical size, has increased the bandwidth of operation of antenna.
It should be noted that, wideband omnidirectional antenna provided by the invention can also adopt the floor of other shapes, as square, rectangle, rhombus etc.; And floor can be provided with one or more cracks, the end in each crack can also divide one or more sub-cracks.
Concrete, radiant body 2 comprises the tablet vertical with floor 1 200.
As shown in Figure 2, in one embodiment, described tablet 200 is the rectangle that a quilt cuts off four angles. Described tablet 200 comprises eight limits, is respectively first side 201, Second Edge 202, the 3rd limit 203, the 4th limit 204, the 5th limit 205, hexagon 206, the 7th limit 207, the 8th limit 208. Wherein, first side 201 is parallel to the 5th limit 205, and first side 201 is perpendicular to floor 1; The 3rd limit 203 is parallel to the 7th limit 207; The symmetry axis that the line of the mid point on the 3rd limit 203 and the 7th limit 207 is described tablet is provided with inserting groove 209 on described symmetry axis, and the length of described inserting groove 209 is less than L; Wherein, L is the distance of the 3rd limit 203 to the 7th limit 207.
The tablet that the present embodiment adopts shows different width characteristic in the direction perpendicular to floor, and along arriving the direction away from floor near floor, the width that tablet becomes broadens gradually, then remains unchanged, and finally narrows gradually. Adopt such laminated structure to replace the vertebral body structure using in traditional antenna emitter, not only simplified the structure of antenna transmission body, and saved the material of manufacturing antenna transmission body, reduced manufacturing cost.
It should be noted that, the shape of above-mentioned tablet is not limited to above-mentioned octagon, and described tablet can also adopt the shapes such as quadrangle, pentagon, heptagon, hexagon, rhombus, tree leaf-shaped.
Therein one preferred embodiment in, radiant body 2 comprises multiple tablets, described multiple tablets are plugged in together by described inserting groove, angle between described multiple tablets equates. For example, in embodiment as shown in Figure 3, radiant body 2 comprises two tablets that shape is identical, is respectively tablet 200 and tablet 210. The length of the inserting groove 209 on tablet 200 is L1, this inserting groove 209 is positioned on the symmetry axis of tablet 200, taking the mid point on the 3rd limit 203 of tablet 200 as starting point, extends L to the direction of the mid point on the 7th limit 207 of tablet 2001< L; The length of the inserting groove 219 on tablet 210 is L2, this inserting groove 219 is positioned on the symmetry axis of tablet 210, taking the mid point on the 7th limit 217 of tablet 210 as starting point, extends L to the direction of the mid point on the 3rd limit 213 of tablet 2102< L, and L1+L2=L, L is the 3rd limit 203 on tablet 200 distance to the 7th limit 207. When tablet 200 and tablet 210 splice, first aim at inserting groove 219 and inserting groove 209, then tablet 210 is inserted in tablet 200 along inserting groove direction, realize tablet 200 and tablet 210 is plugged in together. After being plugged in together, between tablet, forming angle is all 90 degree.
Above-described embodiment is the situation that comprises two tablets, it should be noted that, the situation that is made up of radiant body more than two tablet is also applicable to the wideband omnidirectional antenna the present invention relates to, and now, polylith tablet is to be plugged in together with the similar method of aforesaid way.
In one embodiment, the splicing position of above-mentioned multiple tablets is welded with scolding tin. Multiple tablets are plugged in together in the process of composition radiant body 2, will inevitably leave tiny crack at splicing position, in the present embodiment, at the described splicing position scolding tin of burn-oning, on the one hand the connection between tablet can be further reinforced, the situation of not conducting between each tablet of radiant body 2 can be prevented on the other hand.
In an optional embodiment, radiant body 2 is fixed on the center on floor 1 by a nonmetal column 17. As shown in Figure 1, nonmetal cylinder 17 is fixed on radiant body 2 on floor 1.
Adopt nonmetal column not only radiant body 2 can well be fixed on floor 1, both can also be kept apart, ensure can not form current path between the two, conveniently for wideband omnidirectional antenna carries out feed.
It should be noted that, the nonmetal column being mentioned in the present embodiment is not limited to cylindrical, and the shape that other do not relate to, as cuboid, square etc., is still applicable to wideband omnidirectional antenna provided by the invention.
Concrete, wideband omnidirectional antenna also comprises feed line 3, and the heart yearn of feed line 3 is connected with radiant body 2, and the ground wire of feed line 3 is connected with floor 1.
One preferred embodiment in, above-mentioned tablet 200 is for covering copper pcb board (PrintedCircuitBoard, printed circuit board (PCB)) or metallic plate.
Wideband omnidirectional antenna provided by the invention is provided with crack on floor, has increased the effective dimensions on floor, thereby under the prerequisite that does not increase antenna physical size, has increased the bandwidth of operation of antenna, has reduced manufacturing cost simultaneously. In addition, the present invention utilizes tablet to replace centrum, effectively reduces the structure of the radiant body of bandwidth omnidirectional antenna, in having alleviated antenna weight, has reduced the manufacturing cost of antenna, for operator has reduced construction costs, for social creativity value.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a wideband omnidirectional antenna, is characterized in that, comprises floor and radiant body, and described radiant body passes throughA nonmetal column is fixed on described floor, and described floor is provided with crack, the length in described crackBe less than the length on described floor; The length on described floor is the length at described floor edge distance center, described floorDegree;
Described radiant body comprises the tablet vertical with described floor; Described tablet is that a quilt cuts off fourThe rectangle at angle.
2. wideband omnidirectional antenna as claimed in claim 1, is characterized in that, described crack is by described floorEdge extends to described floor center position; The end in described crack divides many strips crack.
3. wideband omnidirectional antenna as claimed in claim 2, is characterized in that, described floor is provided with manyCrack, described many cracks is evenly distributed on described floor.
4. wideband omnidirectional antenna as claimed in claim 1, is characterized in that,
Described tablet comprises eight limits, is respectively first side, Second Edge, the 3rd limit, the 4th limit, the 5thLimit, hexagon, the 7th limit, the 8th limit; Wherein, first side is parallel to the 5th limit, and first side perpendicular toFloor; The 3rd limit is parallel to the 7th limit; What the line of the mid point on the 3rd limit and the 7th limit was described tablet is rightClaim axle, on described symmetry axis, be provided with inserting groove, the length of described inserting groove is less than L; Wherein, L is the 3rdThe distance on seven limits, limit to the.
5. wideband omnidirectional antenna as claimed in claim 4, is characterized in that, described radiant body comprises multipleTablet, described multiple tablets are plugged in together by described inserting groove; Between described multiple tabletAngle equates.
6. wideband omnidirectional antenna as claimed in claim 5, is characterized in that, described multiple tablets insertThe place of connecing is welded with scolding tin.
7. wideband omnidirectional antenna as claimed in claim 6, is characterized in that, described radiant body is by oneNonmetal column is fixed on the center on described floor.
8. the wideband omnidirectional antenna as described in claim 1 to 7 any one, is characterized in that, described broadbandOmnidirectional antenna also comprises feed line, and the heart yearn of described feed line is connected with described radiant body, described feed lineGround wire is connected with described floor.
9. wideband omnidirectional antenna as claimed in claim 8, is characterized in that, described tablet is for covering copper PCBPlate or metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518741.4A CN103746177B (en) | 2013-10-29 | 2013-10-29 | A kind of wideband omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518741.4A CN103746177B (en) | 2013-10-29 | 2013-10-29 | A kind of wideband omnidirectional antenna |
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| Publication Number | Publication Date |
|---|---|
| CN103746177A CN103746177A (en) | 2014-04-23 |
| CN103746177B true CN103746177B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310518741.4A Active CN103746177B (en) | 2013-10-29 | 2013-10-29 | A kind of wideband omnidirectional antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3285332B1 (en) * | 2016-08-19 | 2019-04-03 | Swisscom AG | Antenna system |
| CN110504526B (en) * | 2018-05-18 | 2022-03-04 | 华为技术有限公司 | Antenna device and terminal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1545749A (en) * | 2001-09-13 | 2004-11-10 | �����ɷ� | Multilevel and space-filling ground-plane for miniature and multiband antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2850794A1 (en) * | 2003-01-30 | 2004-08-06 | Thomson Licensing Sa | BROADBAND ANTENNA WITH OMNIDIRECTIONAL RADIATION |
| US7791554B2 (en) * | 2008-07-25 | 2010-09-07 | The United States Of America As Represented By The Attorney General | Tulip antenna with tuning stub |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1545749A (en) * | 2001-09-13 | 2004-11-10 | �����ɷ� | Multilevel and space-filling ground-plane for miniature and multiband antenna |
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