CN204760531U - Omnidirectional ceiling antenna - Google Patents
Omnidirectional ceiling antenna Download PDFInfo
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- CN204760531U CN204760531U CN201520262223.5U CN201520262223U CN204760531U CN 204760531 U CN204760531 U CN 204760531U CN 201520262223 U CN201520262223 U CN 201520262223U CN 204760531 U CN204760531 U CN 204760531U
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- radiant body
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- around top
- antenna
- top absorbing
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Abstract
The utility model discloses an omnidirectional ceiling antenna for satisfy the demand that covers different frequency channel signals, and improve signal cover quality. An embodiment of the utility model provides an omnidirectional ceiling antenna, including relative first irradiator and the second irradiator that sets up, wherein, first irradiator is curved cone post structure, the second irradiator is curve platform awl structure, and the curved camber of an at least department is non -zero on the second outline curve of the first outline curve of first irradiator and second irradiator, connects through the cable between first irradiator and the second irradiator.
Description
Technical field
The utility model relates to wireless communication technology field, particularly relates to a kind of all-around top absorbing antenna.
Background technology
In order to realize omnidirectional radiation, Schelkkunoff proposes a kind of biconical antenna model according to half-wave dipole principle.Due to himself grading structure form and horizontally rotate symmetrical feature and there is natural good broadband character and omnidirectional's characteristic.As shown in Figure 1, two cone brachiums are equal and for there being limit for length a, cone semi-cone angle is set to θ respectively up and down for typical biconical antenna structure
1and θ
2.Work as θ
1=θ
2time be symmetrical bipyramid; Work as θ
2be dish cone when=90 °, work as θ
2it is two coaxial cones during >90 °; When upper and lower two cone symmetry axis not conllinear time, be off-axis bipyramid; Work as θ
2=90 ° and be endless metal plate time be single cone.Single cone ceiling mount antenna radiation direction is little, and its low-frequency range greatest irradiation direction concentrates on 85 ° within the scope of 90 °, and the greatest irradiation direction of high band is at about 40 °, causes low-and high-frequency coverage inconsistent.
Respectively as shown in Figures 2 and 3, the structural representation of two kinds of all-around top absorbing antennas of double cone structure for providing in prior art.
All-around top absorbing antenna shown in Fig. 2, comprising: single armed oscillator: comprise one section of open tubular column 1, hollow cone 2 and one section of feeder pillar 3; Platform cone reflecting disc: comprise a circular discs 6, one section of open tubular column 5 and one hollow cone 4; Feed and other structures: use coaxial line to be connected with feed connection 7 and introduce signal, feed connection heart yearn is connected with feeder pillar 3.Circular hole is opened at platform cone center, reflecting disc top, and feed connection is installed wherein, and skin is bored reflecting disc with platform and is fixedly connected with.By filling insulating material such as polyvinyl chloride between feed connection skin and heart yearn.Concrete, its radiator structure is as follows: on the two centrum bases shown in Fig. 1, will bore semi-cone angle θ up and down
1and θ
2all control within 90 °, and θ
1≠ θ
2, the cylinder of an additional hollow above upper centrum; Hypocentrum cone high be not equal to centrum cone high, and below hypocentrum an additional hollow circular cylinder.It is be connected with feeder pillar by coaxial line heart yearn to the feeding classification of radiant body, and outer conductor is connected with feed connection, and wherein feeder pillar is made in centrum bottom, and feed connection is connected with hypocentrum top again.Its radiation parameter mainly optimized increases antenna at the radiation angle of higher frequency band, controls more than 60 °, thus promote the covering quality of indoor heating system 3G signal.
All-around top absorbing antenna shown in Fig. 3, comprise: cover plate 1, outer cover 2, upper awl 3, lower awl 4, coaxial cable 5, distance piece 6, stud 7, coupled oscillator 8 and hold-down nut 9, its radiator structure is as follows: in figure 3,4,8 is main body irradiation structure, and it, on the two centrum bases shown in Fig. 1, will bore semi-cone angle θ up and down
1and θ
2all control within 90 °, and θ
1≠ θ
2, strengthen the frustum radius of boring up and down, and be welded to connect sheet in order to regulate antenna standing wave between cone up and down.But due to the structural design of brace, make the grading structure of antenna radiator and symmetry all destroy, therefore, the signal radiation of antenna can become unbalanced, being embodied on radiation parameter is exactly that directional diagram circularity is deteriorated.
Utility model content
The utility model provides a kind of all-around top absorbing antenna, in order to the demand of satisfied covering different frequency range signal, and improves signal covering quality.
The utility model embodiment provides a kind of all-around top absorbing antenna, comprise the first radiant body and the second radiant body that are oppositely arranged, wherein, described first radiant body is curved cone rod structure, described second radiant body is curve platform wimble structure, and on the second outline curve of the first outline curve of the first radiant body and the second radiant body, the bent curvature of a curve at least one place is non-vanishing, is connected between the first radiant body and the second radiant body by cable.
Described first outline curve and/or the second outline curve are M level curvilinear structures, wherein, M be not less than 2 positive integer.
Described first radiant body comprises the class cylinder and conoid that connect successively from top to bottom, and on the outline curve of wherein said class cylindrical outline curve or described conoid, the bent curvature of a curve at least one place is non-vanishing.
Described first radiant body and described second radiant body are connected by the cable between the lower surface and the upper surface of described second radiant body of described conoid.
The lower surface of described conoid and the upper surface of described second radiant body are circular, and the diameter of the lower surface of described conoid is less than the diameter of the upper surface of described second radiant body.
The lower surface of described conoid is provided with perforate, and the upper surface of described second radiant body is provided with via hole, and described cable heart yearn welds with described perforate, and outer conductor and the described via hole of described cable are fastenedly connected.
Described first outline curve and/or the second outline curve are N curve, wherein, N be more than or equal to 2 positive integer.
Described first radiant body and described second radiant body are hollow structure.
Described first radiant body and described second radiant body are horizontal symmetrical structure.
The all-around top absorbing antenna that the utility model provides, first radiant body and the second radiant body adopt the structure of curved cone post and curve platform cone respectively, antenna greatest irradiation direction can be adjusted by adjusting the bent curvature of a curve of the first radiant body outline, cone angle or the bent curvature of a curve of adjustment second radiant body outline etc., owing to adding the adjustment point in antenna greatest irradiation direction, thus the demand covering different frequency range signal can be met, and improve signal covering quality.
Other features and advantages of the utility model are set forth in utility model book subsequently, and, partly become apparent from utility model book, or understand by implementing the utility model.The purpose of this utility model and other advantages realize by structure specifically noted in write utility model book, claims and accompanying drawing and obtain.
Accompanying drawing explanation
The accompanying drawing of this place utility model is used to provide further understanding of the present utility model, form a part of the present utility model, illustrative examples of the present utility model and utility model thereof, for explaining the utility model, are not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is in prior art, the structural representation of biconic model;
Fig. 2 is in prior art, the structural representation of the all-around top absorbing antenna of the first double cone structure;
Fig. 3 is in prior art, the structural representation of the all-around top absorbing antenna of the second double cone structure;
Fig. 4 is in the embodiment of the present invention, the structural representation of all-around top absorbing antenna;
Fig. 5 a is in the embodiment of the present invention, the profile of the first radiant body;
Fig. 5 b is in the embodiment of the present invention, the profile of the first radiant body;
Fig. 5 c is in the embodiment of the present invention, the profile of the first radiant body;
Fig. 5 d is in the embodiment of the present invention, the profile of the first radiant body;
Fig. 5 e is in the embodiment of the present invention, the profile of the first radiant body;
Fig. 5 f is in the embodiment of the present invention, the profile of the first radiant body;
Fig. 6 a is in the embodiment of the present invention, the profile of the second radiant body;
Fig. 6 b is in the embodiment of the present invention, the profile of the second radiant body;
Fig. 6 c is in the embodiment of the present invention, the profile of the second radiant body;
Fig. 6 d is in the embodiment of the present invention, the profile of the second radiant body;
Fig. 6 e is in the embodiment of the present invention, the profile of the second radiant body;
Fig. 6 f is in the embodiment of the present invention, the profile of the second radiant body;
Fig. 7 a is in the embodiment of the present invention, the profile of all-around top absorbing antenna;
Fig. 7 b is in the embodiment of the present invention, the profile of all-around top absorbing antenna;
Fig. 7 c is in the embodiment of the present invention, the profile of all-around top absorbing antenna;
Fig. 7 d is in the embodiment of the present invention, the profile of all-around top absorbing antenna;
Fig. 7 e is in the embodiment of the present invention, the profile of all-around top absorbing antenna;
Fig. 7 f is in the embodiment of the present invention, the profile of all-around top absorbing antenna.
Embodiment
In order to while guarantee low-band signal covering quality, improve high frequency band signal covering quality, the utility model embodiment provides a kind of all-around top absorbing antenna.
Below in conjunction with utility model book accompanying drawing, utility model is carried out to preferred embodiment of the present utility model, be to be understood that, preferred embodiment described herein is only for utility model and explanation the utility model, and be not used in restriction the utility model, and when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
The all-around top absorbing antenna that the utility model provides, first technical specification and the index request of existing all-around top absorbing antenna is met, cancel DC earthing, the radiant body entirety of antenna is in grading structure form, horizontally rotate symmetry etc., the structure of energy-conservation like this simplification antenna can improve again the directional diagram circularity index of antenna, improves the uniformity that aerial signal covers.
Based on this, the all-around top absorbing antenna that the utility model provides, comprise the first radiant body 11 and the second radiant body 12 be oppositely arranged, wherein, first radiant body 11 is curved cone rod structure, second radiant body 12 is curve platform wimble structure, and on the second outline curve of the first outline curve of the first radiant body 11 and the second radiant body 12, the bent curvature of a curve at least one place is non-vanishing, and is connected by cable between the first radiant body 11 and the second radiant body 12.
What need utility model is, the the first outline curve related in the utility model embodiment refers to the contour curve be positioned between the first radiant body 11 upper surface (upper surface of the first radiant body 11 is open surface) and lower surface, does not comprise the contour curve of upper surface and lower surface; Second contour curve refers to the contour curve between the second radiant body 12 upper surface and lower surface, does not comprise the contour curve of upper surface and lower surface.Thus, the first contour curve and the second contour curve are divided into two sections by its upper surface and lower surface, and because all-around top absorbing antenna is for horizontally rotating symmetrical structure, therefore, two sections of contour curves are symmetrical.
During concrete enforcement, first outline curve or the second outline curve are M level curvilinear structures, M be not less than 2 positive integer, namely each section of contour curve that each section of contour curve comprising of the first outline curve or the second outline curve comprise can be made up of multistage curve, as long as wherein at least one section of bent curvature of a curve is not, such as, each section of contour curve that first outline curve comprises or each section of contour curve that the second outline curve comprises can be made up of one section of curve (at least one place curvature is non-vanishing) and at least one section of broken line (curvature is the curve of zero) everywhere, also can be made up of at least two sections of curves.Or, during concrete enforcement, each section of contour curve that first outline curve comprises and each section of contour curve that the second outline curve comprises are M level curvilinear structures, and each section of contour curve that namely each section of contour curve comprising of the first outline curve and the second outline curve comprise forms by by multistage curve.
Preferably, during concrete enforcement, in order to better meet antenna index performance requirement in the frequency range needed, the first outline curve of the first radiant body of the all-around top absorbing antenna that the utility model provides and the second outline curve of the second radiant body can be based on curve conic section even repeatedly curve and their combination.Namely any one in the first outline curve or the second outline curve can be the combination of N curve, or the first outline curve and the second outline curve are the combination of N curve simultaneously, wherein, N be more than or equal to 2 positive integer.Such as, the second outline curve of the first outline curve of the first radiant body and the second radiant body can for meeting the curve of following curvilinear equation: F
(x, y)=ax
2+ by
2+ cxy+dx+ey=0, wherein, a, b, c, d, e are default coefficient.
Such as, during concrete enforcement, first outline curve can be the combination of once curve+conic section, or the first outline curve can be the combination of conic section+conic section, equally, the second outline curve also can be the combination of once curve+conic section, or the second outline curve also can be the combination etc. of conic section+conic section, during concrete enforcement, can adjust according to the actual demand of quorum sensing inhibitor, the utility model embodiment does not limit this.
Preferably, when specifically implementing, the first radiant body 11 and the second radiant body 12 are horizontal symmetrical structure.
As shown in Figure 4, a kind of possible structural representation of all-around top absorbing antenna of providing of the utility model embodiment.
During concrete enforcement, the first radiant body comprises the class cylinder and conoid that connect successively from top to bottom, and on the outline curve of wherein class cylindrical outline curve or conoid, the bent curvature of a curve at least one place is non-vanishing.As shown in Fig. 5 a-Fig. 5 f, be respectively several possible profile of the first radiant body.As shown in Fig. 6 a-Fig. 6 f, be respectively several possible profile of the second radiant body.
Need utility model, Fig. 5 a-Fig. 5 f and Fig. 6 a-Fig. 6 f is only for the signal to the utility model embodiment, and it is not formed restriction of the present utility model.
Preferably, when specifically implementing, the first radiant body and the second radiant body are connected by the cable between the second radiant body upper surface of conoid lower surface.Namely arbitrary first radiant body in Fig. 5 a-Fig. 5 f forms the all-around top absorbing antenna that the utility model provides after being connected by cable with the arbitrary radiant body in Fig. 6 a-Fig. 6 f.If Fig. 7 a-Fig. 7 f is several side sectional views combining corresponding all-around top absorbing antenna wherein.
Concrete, the lower surface of conoid is provided with perforate, and the upper surface of the second radiant body is provided with via hole, and cable heart yearn welds with the perforate being positioned at conoid lower surface, and the outer conductor of cable is fastenedly connected with the via hole being positioned at the second radiant body upper surface.
During concrete enforcement, the lower surface of cone and the upper surface of the second radiant body can be designed as circle, and the diameter of the lower surface of conoid is less than the diameter of the upper surface of the second radiant body.Antenna greatest irradiation direction is tentatively adjusted by adjusting the first radiant body 11 outline curvature of curve and boring high mixture ratio, within the scope of certain angle, curvature is larger, cone angle its greatest irradiation orientation angle larger is larger, simultaneously by the diameter of adjustment conoid lower surface, the cone of conoid is high takes into account adjustment standing wave with the proportioning of class cylinder height, widens its frequency bandwidth.And bore the radius of lower surface by the second radiant body outline curvature of curve, curve platform and highly can continue to adjust antenna greatest irradiation direction.
During concrete enforcement, the first radiant body and the second radiant body all can be designed as the structure of hollow.
During concrete enforcement, can also adjust antenna oscillator length and cone angle on the whole, reduction radiant body overall structure size.
The all-around top absorbing antenna that the utility model provides, adopt the structural design of curve cone and curve platform cone, antenna greatest irradiation direction can be adjusted by adjusting the bent curvature of a curve of the first radiant body outline, cone angle or the bent curvature of a curve of adjustment second radiant body outline etc., owing to adding greatest irradiation direction adjustment point, the demand covering different frequency range signal can be met, and improve signal covering quality.For TD-LTE (TimeDivisionLongTermEvolution, timesharing Long Term Evolution) in-band signal greatest irradiation direction increase after, its signal radiation radius is increased, reduce antenna bottom radiation field intensity simultaneously, promote cell-edge, thus its effective radiating area is increased.In addition, the horizontal full symmetric of radiant body overall structure in the all-around top absorbing antenna that the utility model provides, antenna direction circularity is excellent, and structure is simple, and feeding classification is also fairly simple.
The all-around top absorbing antenna that the utility model provides, a specific embodiment just can rise to more than 60 degree in antenna greatest irradiation direction, and the average gain value within the scope of this is compared tradition single cone ceiling mount antenna lifting more than 6dB; , thus solve low-and high-frequency covering radius inconsistence problems, effectively promote the in-door covering quality of high-frequency signal.Meanwhile, covering fringing field intensity values is promoted.
Although described preferred embodiment of the present utility model, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (9)
1. an all-around top absorbing antenna, is characterized in that, comprises the first radiant body and the second radiant body that are oppositely arranged, wherein:
Described first radiant body is curved cone rod structure, described second radiant body is curve platform wimble structure, and on the second outline curve of the first outline curve of the first radiant body and the second radiant body, the bent curvature of a curve at least one place is non-vanishing, is connected between the first radiant body and the second radiant body by cable.
2. all-around top absorbing antenna as claimed in claim 1, it is characterized in that, described first outline curve and/or the second outline curve are M level curvilinear structures, wherein, M be not less than 2 positive integer.
3. all-around top absorbing antenna as claimed in claim 1, it is characterized in that, described first radiant body comprises the class cylinder and conoid that connect successively from top to bottom, and on the outline curve of wherein said class cylindrical outline curve or described conoid, the bent curvature of a curve at least one place is non-vanishing.
4. all-around top absorbing antenna as claimed in claim 3, is characterized in that, described first radiant body and described second radiant body are connected by the cable between the lower surface and the upper surface of described second radiant body of described conoid.
5. all-around top absorbing antenna as claimed in claim 4, is characterized in that, the lower surface of described conoid and the upper surface of described second radiant body are circular, and the diameter of the lower surface of described conoid is less than the diameter of the upper surface of described second radiant body.
6. all-around top absorbing antenna as claimed in claim 4, it is characterized in that, the lower surface of described conoid is provided with perforate, and the upper surface of described second radiant body is provided with via hole, described cable heart yearn welds with described perforate, and outer conductor and the described via hole of described cable are fastenedly connected.
7. the all-around top absorbing antenna as described in claim as arbitrary in claim 1 ~ 6, is characterized in that, described first outline curve and/or the second outline curve are N curve, wherein, N be more than or equal to 2 positive integer.
8. the all-around top absorbing antenna as described in claim as arbitrary in claim 1 ~ 6, is characterized in that, described first radiant body and described second radiant body are hollow structure.
9. the all-around top absorbing antenna as described in claim as arbitrary in claim 1 ~ 6, is characterized in that, described first radiant body and described second radiant body are horizontal symmetrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262223.5U CN204760531U (en) | 2015-04-27 | 2015-04-27 | Omnidirectional ceiling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262223.5U CN204760531U (en) | 2015-04-27 | 2015-04-27 | Omnidirectional ceiling antenna |
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| Publication Number | Publication Date |
|---|---|
| CN204760531U true CN204760531U (en) | 2015-11-11 |
Family
ID=54475210
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|---|---|---|---|
| CN201520262223.5U Active CN204760531U (en) | 2015-04-27 | 2015-04-27 | Omnidirectional ceiling antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600855A (en) * | 2019-08-12 | 2019-12-20 | 南京天之谱科技有限公司 | Broadband ball cone monitoring antenna |
| CN114696071A (en) * | 2020-12-28 | 2022-07-01 | 电连技术股份有限公司 | High-gain broadband sucker antenna |
-
2015
- 2015-04-27 CN CN201520262223.5U patent/CN204760531U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600855A (en) * | 2019-08-12 | 2019-12-20 | 南京天之谱科技有限公司 | Broadband ball cone monitoring antenna |
| CN110600855B (en) * | 2019-08-12 | 2020-11-24 | 南京天之谱科技有限公司 | Broadband ball cone monitoring antenna |
| CN114696071A (en) * | 2020-12-28 | 2022-07-01 | 电连技术股份有限公司 | High-gain broadband sucker antenna |
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