CN203910957U - Array antenna and partially-asymmetrical radiating unit thereof - Google Patents
Array antenna and partially-asymmetrical radiating unit thereof Download PDFInfo
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- CN203910957U CN203910957U CN201420247038.4U CN201420247038U CN203910957U CN 203910957 U CN203910957 U CN 203910957U CN 201420247038 U CN201420247038 U CN 201420247038U CN 203910957 U CN203910957 U CN 203910957U
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Abstract
The utility model discloses a partially-asymmetrical radiating unit. The partially-asymmetrical radiating unit comprises a Balun, a radiating body fed and supported by the Balun, and a pair of orthogonally-arranged feed sheets arranged in the center of the radiating body. The radiating body comprises four orthogonally-arranged radiating oscillator arms. Every two adjacent radiating oscillator arms form an adjacent group. A gap exists between every two adjacent radiating oscillator arms. At least two kinds of different heights are arranged for each of the gaps. The utility model also provides an array antenna. The array antenna comprises a reflecting plate and multiple radiating units arranged on the reflecting plate in an array manner. The above partially-asymmetrical radiating units are adopted on the array antenna. According to the utility model, isolation and cross polarization rate among ends of the array antenna and th partially-asymmetrical radiating unit thereof are high, and radiating performance is good.
Description
Technical field
The utility model relates to a kind of mobile communication antenna technology, relates in particular to a kind of array antenna and local asymmetric radiating element thereof.
Background technology
The fast development of mobile communication, further requirement improves the capacity of communication system, at present the general operating efficiency that adopts polarization diversity technique to improve antenna.And adopting polarization diversity technique to have higher requirement to Antenna Design, the isolation problem of port and cross polarization become than problem the focus that each equipment vendors pay close attention to gradually.More excellent interport isolation and the cross polarization of Geng Gao ratio are the guarantees of high-quality mobile communication quality.
Thereby designing high-isolation and cross polarization under wideband work becomes the Focal point and difficult point of antenna circle research than dual polarization antenna radiation unit.
Utility model content
The purpose of this utility model is, a kind of array antenna and dual-polarization radiating unit thereof that improves isolation between antennas and cross polarization ratio is provided, and is specially a kind of array antenna and local asymmetric radiating element thereof.
For reaching above technical purpose, the technical solution adopted in the utility model is as follows:
The asymmetric radiating element in a kind of part, it comprises Ba Lun, by the radiant body of described Ba Lun feed and support and be arranged in the feed tab that the pair of orthogonal of described radiant body center is arranged, described radiant body comprises the radiating doublet arm of four quadrature arrangement, two adjacent described radiating doublet arms form adjacent set, wherein, between described adjacent set, have gap, described gap is at least provided with two kinds of different width.
The different in width in described gap can also embody by chamfering structure is set: described radiating doublet arm is square, and described in each, radiation is raised one's arm and is provided with three outline angles, and outline angle is set to chamfering structure described at least one in described radiating element.
Formation about the described gap of different in width: at least one is set to chamfering structure the outline angle of the gap location of described adjacent set.Selectively, the outline angle of any two described gap locations at least one be set to chamfering structure.Or at least one is set to chamfering structure the outline angle of any three described gap locations.
Another way of realization of the unsymmetric structure of described radiant body: also comprise from the extended loaded segment of described radiating doublet arm, described loaded segment is extended to the direction of described Ba Lun by the radiating doublet arm edge that forms described gap, and the loaded segment shape that is positioned at same described gap is identical.Further, the loaded segment shape of same described radiating doublet arm is different.
The way of realization of the unsymmetric structure of described radiant body can also be: described radiating doublet arm is hollow out body and/or solid.
Selectively, all described radiating doublet arms are hollow out body or solid.Or radiating doublet arm is solid described at least one, all the other are hollow out body.
For keeping the stability in described gap, this radiating element also comprises medium clip: described dielectric card folder comprises that several are for embedding the embedded part in described gap.Further, described medium clip also comprises several back-off parts for fixing with described radiating doublet arm.Further, described medium clip also comprises main part, and described main part, embedded part and back-off part are one-body molded.
Installation site about described medium clip: described dielectric card folder is arranged on the center of described radiant body.The unsymmetric structure of described feed tab has synergistic effect to the electric property of described radiant body: the first fixed-wing and the second fixed-wing that described feed tab comprises overlapping portion and is separately positioned on described overlapping portion two ends; The length of described the second fixed-wing is greater than described the first fixed-wing; Described the first fixed-wing and the second fixed-wing are positioned at same plane, described overlapping portion and described the first fixed-wing and the second fixed-wing height interlaced arrangement.
An array antenna, it comprises the radiating element of reflecting plate and several arrayed on described reflecting plate, wherein, it adopts the front described asymmetric radiating element in part.
Compared with prior art, the utlity model has following advantage:
1) by the dissymmetrical structure of radiating doublet arm and loaded segment is set, to realize the part of whole radiating element asymmetric, with this, can effectively improve the isolation between aerial array port, reduces antenna and produce debug time;
2) the local dissymmetrical structure of described radiating element can also improve aerial array cross polarization ratio, and positive and negative 60 ° of cross polarization ratios particularly weaken the correlation of two polarized signals of aerial array;
3) the commutative installation site of a pair of described feed tab, can adjust the welding position of described feed tab as required while forming array antenna, with this, improve lobe skew, improves cross polarization, further plays the effect that improves array radiation characteristic.
Accompanying drawing explanation
Fig. 1 is the plan structure figure of the first embodiment of the asymmetric radiating element in part of the present utility model, and the structure of radiating doublet arm and feed tab is shown.
Fig. 2 is the structural representation of the first embodiment of array antenna of the present utility model, wherein comprises the embodiment of a plurality of radiating elements (not containing medium clip), and the radiation arm of each radiating element has the layout of different chamfering structures.
Fig. 3 be the asymmetric radiating element in part of the present utility model shown in Fig. 1 the first embodiment look up structural perspective, the structure of Ba Lun and loaded segment is shown, wherein this radiating element is containing medium clip.
Fig. 4 is the structural representation of the second embodiment of array antenna of the present utility model, wherein comprises the embodiment of a plurality of radiating elements (not containing medium clip), and the radiation arm of each radiating element has different hollow outs/solid layout.
Fig. 5 is the perspective view of the medium clip of the asymmetric radiating element in part of the present utility model.
Fig. 6 is the perspective view of the feed tab of the asymmetric radiating element in part of the present utility model.
Fig. 7 is the end view of the feed tab of the asymmetric radiating element in part of the present utility model.
Fig. 8 is the feed tab of the asymmetric radiating element in part of the present utility model the first package assembly schematic diagram on radiating element, shows the installation site of feed tab and lower feed tab.
Fig. 9 is the feed tab of the asymmetric radiating element in part of the present utility model the second package assembly schematic diagram on radiating element, shows the installation site of feed tab and lower feed tab.
Figure 10 is the test result of the voltage standing wave ratio of array antenna of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to the exemplary embodiments of the asymmetric radiating element in part of the present utility model that Fig. 1 and Fig. 3 show, described radiating element comprises radiant body 1, to the Ba Lun 2 of 1 feed of this radiant body and supporting role and the feed tab 3 that is arranged in described radiant body 1 center.
Please continue to refer to Fig. 1, described radiant body 1 comprises four radiating doublet arms, be respectively radiating doublet arm 11,12,13 and 14, wherein said radiating doublet arm 11 and 13 forms one group of half-wave dipole, described radiating doublet arm 12 and 14 forms another group half-wave dipole, and two groups of half-wave dipoles are quadrature arrangement at grade.Here two adjacent described radiating doublet arms of position are defined as to adjacent set, comprise radiating doublet arm 11 and 12,12 and 13,13 and 14 and 14 and 11, between the radiating doublet arm of described composition adjacent set, be provided with gap, be respectively gap 15,16,17 and 18.
For realizing the unsymmetric structure of described radiant body 1, first can arrange by the asymmetry between described gap 15,16,17 and 18.
Particularly, please refer to Fig. 1, described gap 15,16,17 is different with 18 integral width, and described gap 15 and 17 width are greater than the width of described gap 16 and 18.
Another kind of situation, as shown in Figure 1, the described radiating doublet arm in the present embodiment is square, four described radiating doublet arms are arranged with sphere of movements for the elephants shape, and connect with center.Based on aforementioned this structure, first, described in each, radiating doublet arm forms three outline angles, the described radiating doublet arm 11 of take is example, on this radiating doublet arm 11, include outline angle 11 αs close with radiating doublet arm 12, with close outline angle 11 β of radiating doublet arm 14 and not with near outline angle 11 γ of any one radiating doublet arm rest.Secondly, take described gap 15 is example, and this gap 15 is formed jointly by described radiating doublet arm 11 and 12 mutual close edges and outline angle 11 α and 12 β.Described gap 16,17 and 18 generation type and described gap 15 are similar.Again, take described gap 15 is example again, can be set to chamfering structure according to the described outline of the electric requirement of described radiating element angle 11 α and/or 12 β, the width of latter end that changes the close described outline angle place in described gap 15 with this, realizes the unsymmetric structure of described radiant body 1 thus.
Further, as shown in Figure 2, to the foregoing chamfering structure setting in the outline angle of radiating doublet arm described in other, by described radiant body 1 being arranged to the chamfering structure of diverse location and varying number, finally make the width size heterogeneity between described gap 15,16,17 and 18.Arranging of the chamfering structure at described outline angle can have following multiple situation:
(1) wherein three described gaps arrange chamfering structure: the gap 15 and 16 of radiant body 1A arranges respectively 1 chamfering structure, and gap 18 arranges 2 chamfering structures; The gap 15 of radiant body 1B arranges 1 chamfering structure, and gap 16 and 18 arranges respectively 2 chamfering structures.
(2) adjacent described gap, position arranges chamfering structure: the gap 16 and 17 of radiant body 1E arranges respectively 1 chamfering structure; The gap 15 and 16 of radiant body 1F arranges respectively 1 chamfering structure; The gap 15 and 18 of radiant body 1G arranges respectively 1 chamfering structure; The gap 17 and 18 of radiant body 1H arranges respectively 1 chamfering structure.
(3) relative described gap, position arranges chamfering structure: the gap 15 of radiant body 1C arranges 2 chamfering structures, and gap 17 arranges 1 chamfering structure; The gap 15 of radiant body 1D arranges 1 chamfering structure, and gap 17 arranges 2 chamfering structures; The gap 15 and 17 of radiant body 1I and 1J arranges respectively 1 chamfering structure; The gap 15 and 17 of radiant body 1K arranges respectively 2 chamfering structures; The gap 16 and 18 of radiant body 1L arranges respectively 2 chamfering structures.
(4) setting of chamfering structure in same described gap: owing to containing two described outline angles and can be configured to chamfering structure in a described gap, therefore the alternative at this described outline angle has increased the implementation of described radiant body 1 unsymmetric structure.For example, the gap 15 and 17 of described radiant body 1I and 1J is provided with respectively 1 chamfering structure, both differences are, the chamfering structure of described radiant body 1I is arranged on its outline angle 11 α and 13 α places, and the chamfering structure of described radiant body 1J is arranged on its outline angle 12 β and 14 β places.
Secondly, this radiating element can also, by from the extended loaded segment 4 of described radiating doublet arm, further be realized the unsymmetric structure of described radiant body 1.
As shown in Figure 3, described loaded segment 4 is extended to the direction of described Ba Lun 2 by the edge that forms the gap of described radiating doublet arm adjacent set, described in each there is a loaded segment pair in adjacent set, comprise that loaded segment is to 41,42,43 and 44, wherein, two loaded segment shapes that described in each, loaded segment is right are identical, two right shape differences of described loaded segment that position is adjacent, that is to say, two loaded segment, 4 shapes of same described radiating doublet arm are different.For example, described loaded segment is to 41 loaded segment 41a and the loaded segment 41b on described radiating doublet arm 12 that are included on described radiating doublet arm 11, and the cross section of this loaded segment 41a and 41b is stairstepping; Described loaded segment is to 42 loaded segment 42a and the loaded segment 42b on described radiating doublet arm 13 that are included on described radiating doublet arm 12, and the cross section of this loaded segment 42a and 42b is the shape of approximate " L " word; At this, can see, the loaded segment 41b on same described radiating doublet arm 12 is different with loaded segment 42a shape.Described radiating doublet arm 11,13 and 14 loaded segment have similar setting.Those skilled in the art should know, and the shape of described loaded segment 4 is not limited to foregoing description, and technical staff can change according to the electric requirement of radiating element.
Again, four hollow out bodies that described radiating doublet arm is " umbrella " font hollow out as shown in Figure 4, but also can be set to solid according to radiating doublet arm described in the electric requirement of described radiating element, therefore, can arrange by different way the radiating doublet arm of described hollow out body and the radiating doublet arm of solid, realize the unsymmetric structure of described radiant body 1.
Please refer to Fig. 4, the radiating doublet arm of described hollow out body and arranging of the radiating doublet arm of solid can have following various ways:
(1) two adjacent described radiating doublet arms of position are solid, and all the other are hollow out body: the radiating doublet arm 11 of radiant body 1M and 12 is solid, and all the other are hollow out body; The radiating doublet arm 13 of radiant body 1N and 14 is solid, and all the other are hollow out body; The radiating doublet arm 11 of radiant body 1O and 14 is solid, and all the other are hollow out body; The radiating doublet arm 12 of radiating doublet arm 1P and 13 is solid; All the other are hollow out body.
(2) relative two the described radiating doublet arms (being same group of half-wave dipole) in position are solid, and all the other are hollow out body: the radiating doublet arm 11 of radiant body 1U and 13 is solid, and all the other are hollow out body; The radiating doublet arm 12 of radiant body 1V and 14 is solid, and all the other are hollow out body.
(3) described in any one, radiating doublet arm is solid, and all the other are hollow out body: the radiating doublet arm 14 of radiant body 1Q is solid; The radiating doublet arm 12 of radiant body 1R is solid; The radiating doublet arm of radiant body 1S is 11 for solid; The radiating doublet arm of radiant body 1T is solid.
(4) all described radiating doublet arms are solid or hollow out body: all radiating doublet arms of radiant body 1W are hollow out body; All radiating doublet arms of radiant body 1X are solid.
Please refer to Fig. 1 and Fig. 5, this radiating element also comprises the medium clip 5 that described gap is played to stabilization.Described medium clip 5 comprises main part 51, embedded part 52 and back-off part 53.Described medium clip 5 is arranged on the center of described radiant body, therefore, accordingly, the dieelctric sheet that described main part 51 is ring-type, the hollow space of described dieelctric sheet (not indicating) is used as the space that described feed tab 3 is installed.Position in described main part 51 corresponding to described gap, described main part 51 is extended embedded part 52 downwards, for being inserted into described gap, to stablize the size in described gap, avoids causing described gap less than normal in the process of installing and using.With reference to figure 1, suitable hollow out position in described main part 51 corresponding to the radiating doublet arm of described hollow out, described main part 51 is extended back-off part 53 downwards, the back side for radiating doublet arm described in snatch, to stablize the relative position of described radiating doublet arm adjacent set, avoid causing described gap bigger than normal in the process of installing and using.If described radiating doublet arm is solid, the position of described back-off part 53 need to carry out adaptations according to the difference of described radiating doublet arm.
Please refer to Fig. 6 and Fig. 7, this radiating element also comprises the feed tab 3 that the array radiation characteristic of this radiating element is improved to effect.The first fixed-wing 32 and the second fixed-wing 33 that described feed tab 3 comprises overlapping portion 31 and is separately positioned on described overlapping portion 31 two ends.Described the first fixed-wing 32 is provided with installing hole 321, and described the second fixed-wing 33 is provided with installing hole 331, and the length of described the second fixed-wing 33 is greater than described the first fixed-wing 32.Further, described the first fixed-wing 32 and the second fixed-wing 33 are positioned at same plane, described overlapping portion 31 and described the first fixed-wing 32 and the second fixed-wing 33 height interlaced arrangement, the outwardly one side of wherein said overlapping portion 31 is face 31a, its back side is face 31b.
Please refer to Fig. 8, two described feed tab 3 quadrature arrangement, are arranged on the center of described radiant body 1, the mounting platform 111,121,131 and 141 that described in each, radiating doublet arm forms respectively to lower recess in the corresponding installation site of this feed tab 3.Wherein, be positioned at upper strata for upper feed tab 3a, on this, upward, two described fixed-wings by feed tab 3a on this are arranged on respectively on described mounting platform 111 and 131 the face 31a of feed tab 3a; That be positioned at lower floor is lower feed tab 3b, and the face 31b of this lower feed tab 3b faces up, and this lower feed tab 3b is arranged on described mounting platform 121 and 141.
The installation site of two described feed tab 3 can also exchange: as shown in Figure 9, described upper feed tab 3a is arranged on described mounting platform 121 and 141, and described lower feed tab 3b is arranged on described mounting platform 111 and 131.
Several radiating elements described in the utility model are installed on metallic reflection plate, are aided with necessary and known feeding network, just form array antenna of the present utility model.Please refer to Figure 10, the test result of the voltage standing wave ratio of array antenna of the present utility model shows, the asymmetric radiating element in part of the present utility model has good cross polarization ratio.
In sum, the isolation height between the utility model array antenna and local asymmetric radiating element port thereof and cross polarization are than high, and radiance is good.
Above-described embodiment is preferably execution mode of the utility model; but be not merely restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being all included in protection range of the present utility model.
Claims (16)
1. the asymmetric radiating element in part, it comprises Ba Lun, by the radiant body of described Ba Lun feed and support and be arranged in the feed tab that the pair of orthogonal of described radiant body center is arranged, described radiant body comprises the radiating doublet arm of four quadrature arrangement, two adjacent described radiating doublet arms form adjacent set, it is characterized in that: between described adjacent set, have gap, described gap is at least provided with two kinds of different width.
2. the asymmetric radiating element in part as claimed in claim 1, is characterized in that: described radiating doublet arm is square, and described in each, radiation is raised one's arm and is provided with three outline angles; Described at least one in described radiant body, outline angle is set to chamfering structure.
3. the asymmetric radiating element in part as claimed in claim 2, is characterized in that: described at least one the outline angle of the gap location of adjacent set at least one be set to chamfering structure.
4. the asymmetric radiating element in part as claimed in claim 3, is characterized in that: at least one is set to chamfering structure the outline angle of any two adjacent described gap locations.
5. the asymmetric radiating element in part as claimed in claim 3, is characterized in that: at least one is set to chamfering structure the outline angle of any three described gap locations.
6. the asymmetric radiating element in part as claimed in claim 1, it is characterized in that: also comprise from the extended loaded segment of described radiating doublet arm, described loaded segment is extended to the direction of described Ba Lun by the radiating doublet arm edge that forms described gap, and the loaded segment shape that is positioned at same described gap is identical.
7. the asymmetric radiating element in part as claimed in claim 6, is characterized in that: the loaded segment shape of same described radiating doublet arm is different.
8. the asymmetric radiating element in part as described in claim 1～7 any one, is characterized in that: described radiating doublet arm is hollow out body and/or solid.
9. the asymmetric radiating element in part as claimed in claim 8, is characterized in that: all described radiating doublet arms are hollow out body or solid.
10. the asymmetric radiating element in part as claimed in claim 8, is characterized in that: described at least one, radiating doublet arm is solid, and all the other are hollow out body.
The 11. asymmetric radiating elements in part as claimed in claim 1, is characterized in that: also comprise medium clip, described dielectric card folder comprises that several are for embedding the embedded part in described gap.
The 12. asymmetric radiating elements in part as claimed in claim 11, is characterized in that: described medium clip also comprises several back-off parts for fixing with described radiating doublet arm.
The 13. asymmetric radiating elements in part as claimed in claim 12, is characterized in that: described medium clip also comprises main part, and described main part, embedded part and back-off part are one-body molded.
The 14. asymmetric radiating elements in part as claimed in claim 13, is characterized in that: described dielectric card folder is arranged on the center of described radiant body.
The 15. asymmetric radiating elements in part as claimed in claim 1, is characterized in that: the first fixed-wing and the second fixed-wing that described feed tab comprises overlapping portion and is separately positioned on described overlapping portion two ends; The length of described the second fixed-wing is greater than described the first fixed-wing; Described the first fixed-wing and the second fixed-wing are positioned at same plane, described overlapping portion and described the first fixed-wing and the second fixed-wing height interlaced arrangement.
16. 1 kinds of array antennas, the radiating element that it comprises reflecting plate and several arrayed on described reflecting plate, is characterized in that: it adopts the asymmetric radiating element in part as described in claim 1～15 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247038.4U CN203910957U (en) | 2014-05-14 | 2014-05-14 | Array antenna and partially-asymmetrical radiating unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247038.4U CN203910957U (en) | 2014-05-14 | 2014-05-14 | Array antenna and partially-asymmetrical radiating unit thereof |
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| Publication Number | Publication Date |
|---|---|
| CN203910957U true CN203910957U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247038.4U Withdrawn - After Issue CN203910957U (en) | 2014-05-14 | 2014-05-14 | Array antenna and partially-asymmetrical radiating unit thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972643A (en) * | 2014-05-14 | 2014-08-06 | 京信通信系统（中国）有限公司 | Array antenna and locally-asymmetric radiating elements thereof |
| CN107516758A (en) * | 2017-07-13 | 2017-12-26 | 广州杰赛科技股份有限公司 | A kind of high frequency radiating element locating clip and high frequency radiating element |
-
2014
- 2014-05-14 CN CN201420247038.4U patent/CN203910957U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972643A (en) * | 2014-05-14 | 2014-08-06 | 京信通信系统（中国）有限公司 | Array antenna and locally-asymmetric radiating elements thereof |
| CN103972643B (en) * | 2014-05-14 | 2017-06-06 | 京信通信系统（中国）有限公司 | Array antenna and its local asymmetric radiating element |
| CN107516758A (en) * | 2017-07-13 | 2017-12-26 | 广州杰赛科技股份有限公司 | A kind of high frequency radiating element locating clip and high frequency radiating element |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20170606 |
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| AV01 | Patent right actively abandoned |