CN201383537Y - Antenna radome - Google Patents
Antenna radome Download PDFInfo
- Publication number
- CN201383537Y CN201383537Y CN200920105553U CN200920105553U CN201383537Y CN 201383537 Y CN201383537 Y CN 201383537Y CN 200920105553 U CN200920105553 U CN 200920105553U CN 200920105553 U CN200920105553 U CN 200920105553U CN 201383537 Y CN201383537 Y CN 201383537Y
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- China
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- plane
- antenna
- radome
- wall
- cambered surface
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Abstract
The utility model relates to an antenna radome, which is a bilaterally symmetrical sleeve utilizing the radiation direction of an antenna as an axis. The antenna is arranged in a cavity of the sleeve, the sleeve consists of a left lateral wall, a right lateral wall, an upper wall and a lower wall, the left lateral wall is parallel to the right lateral wall, the upper wall is formed by smoothly connecting the upper end of the left lateral wall, a left upper transitional cambered surface, a left upper inclined plane, a left inverted circular-arc surface, a circular-arc surface, a right inverted circular-arc surface, a right upper inclined plane, a right upper transitional cambered surface and the upper end of the right lateral wall sequentially, and the lower wall is formed by smoothly connecting the lower end of the left lateral wall, the left lower transitional cambered surface, a left lower inclined plane, a plane, a right lower inclined plane, a right lower transitional cambered surface and the lower end of the right lateral wall sequentially. The antenna radome has the advantages that the radome can improve performance of the antenna well, and changes inherent capacitive reactance of the antenna and increases the integral inductive reactance value compared with the conventional circular-arc radome, particularly reduces loss, decreases standing-wave ratio and increases front-back ratio property.
Description
Technical field
The utility model relates to communication antenna, particularly a kind of radome.
Background technology
At present, the plate aerial of the usefulness of communicating by letter both at home and abroad is with reference to Fig. 4, circular arc design is generally adopted on its radome top, also has to adopt planar design, and these designs can have a negative impact simultaneously to the performance index of antenna, mainly show and make that the return loss variation of antenna, gain reduce etc.Now, the market not only performance requirement to antenna is more and more higher, and the outward appearance of antenna is also had higher requirement, and requires antenna shapes attractive in appearance and develop to miniaturization.Along with antenna diminishes relatively, its performance index will inevitably correspondingly degenerate, if do not improve radome design simultaneously, the performance that improves antenna merely will be limited, and common traditional radome can not be accomplished this point.Therefore, improving the design of radome, will be crucial to the performance that improves antenna.At present also of no use to improve the radome of Wi-Fi antenna performance.
The utility model content
For satisfying above-mentioned needs, the utility model provides a kind of can improve the Wi-Fi antenna performance, and good looking appearance is small and exquisite, processing and radome easy for installation.
The radome that the utility model provides comprises that with the aerial radiation direction be the symmetrical sleeve of axis, and its inner chamber is used to place antenna, and described sleeve comprises left and right sidewall and upper wall and the lower wall that is parallel to each other, wherein:
Described upper wall comprises that radius is the arc surface of 0.25 λ～0.29 λ, radius is 2 anti-phase arc surfaces of 0.39 λ～0.43 λ, 2 ramp and 2 last transition cambered surfaces that length is 0.21 λ～0.25 λ, wherein λ is the wavelength of center of antenna frequency, the center of circle of arc surface and last transition cambered surface is in inner chamber one side, the center of circle of anti-phase arc surface is in the inner chamber outside, the angle on left side wall and upper left inclined-plane is 100 °, the angle on right side wall and upper right inclined-plane is 100 °, the upper end of left side wall, upper left transition cambered surface, upper left inclined-plane, the anti-phase arc surface in a left side, arc surface, right anti-phase arc surface, upper right inclined-plane, the upper end of upper right transition cambered surface and right side wall smoothly links to each other successively;
Described lower wall comprises plane and 2 following transition cambered surfaces, the center of circle of following transition cambered surface is in inner chamber one side, the angle of plane and lower inclined plane is respectively 150 °, and the lower end of the lower end of left side wall, lower-left transition cambered surface, inclined-plane, lower-left, plane, inclined-plane, bottom right, bottom right transition cambered surface and right side wall smoothly links to each other successively.
The utility model radome, wherein said sleeve height are 0.63 λ～0.67 λ, and width is 1.38 λ～1.45 λ.
The utility model radome, the radius of wherein said arc surface are 14.2mm, and the radius of anti-phase arc surface is 21.8mm, and the length of ramp is 12mm, and the radius of last transition cambered surface is 10mm, and the radius of following transition cambered surface is 14mm.
The utility model radome, wherein said sleeve height 34mm, width is 75mm, wall thickness is 1.8mm～2.2mm.
The utility model radome, wherein said sleeve is fixed on antenna on its lower wall plane by screw.
The utility model radome, wherein said sleeve adopt the PVC plastics to make, and the frequency range that is suitable for is 4.9GHz～5.8GHz.
The advantage of the utility model radome is: because this radome design becomes with the aerial radiation direction is the symmetrical sleeve of axis, antenna chamber placed within, its upper wall and lower wall design outline are attractive in appearance small and exquisite, this design simultaneously has good improvement effect to the performance of antenna, its more traditional orthodrome radome is compared, change the intrinsic capacitive reactance of antenna, increase whole induction reactance value.At first be that gain to antenna does not have loss substantially, and the return loss of antenna is had comparatively significantly improvement, and can also reduce the back lobe of antenna, compare performance before and after improving, can improve about 2dB than generally before and after it, make antenna have better effect in practice.Radome is drawn by mould and forms, and can select the length of radome according to different antenna lengths, and processing and easy for installation is fit to the batch process of antenna.
Description of drawings
Fig. 1 is the structure chart of the utility model radome;
Fig. 2 is the three-dimensional view of the utility model radome;
Fig. 3 is the resolution chart of the utility model radome to the antenna performance influence;
Fig. 4 is the three-dimensional view of radome in the conventional art.
Embodiment
For further setting forth the utility model radome, do more detailed explanation below in conjunction with embodiment.
With reference to Fig. 2, the frequency range that the utility model radome is suitable for is 4.9GHz～5.8GHz.This radome is that a radiation direction with antenna is the symmetrical sleeve of axis, and its inner chamber is used to place antenna, and the PVC plastics that it is good that sleeve is selected the ripple rate for use are made, and comprise the left and right sidewall upper wall and the lower wall that are parallel to each other, wherein:
With reference to Fig. 1, upper wall comprises that radius is the arc surface 2 of 0.25 λ～0.29 λ, radius be the anti-phase arc surface 3,3 of 2 of 0.39 λ～0.43 λ ', the ramp 4,4 that 2 length is 0.21 λ～0.25 λ ' and 2 go up transition cambered surface 9,9 ', wherein, λ is the wavelength of center of antenna frequency.The center of circle of arc surface 2 and last transition cambered surface 9 is in inner chamber one side, anti-phase arc surface 3,3 ' the center of circle in the inner chamber outside, left side wall 7 and ramp 4 and right side wall 7 ' with ramp 4 ' angle be respectively 100 °, the upper end of left side wall 7, upper left transition cambered surface 9, upper left inclined-plane 4, left anti-phase arc surface 3, arc surface 2, right anti-phase arc surface 3 ', upper right inclined-plane 4 ', upper right transition cambered surface 9 ' with right side wall 7 ' the upper end smoothly link to each other successively.
Lower wall comprise 5,2 lower inclined planes 6,6 in plane ' and 2 following transition cambered surfaces 8,8 ', the center of circle of following transition cambered surface 8 is in inner chamber one side, plane 5 and lower inclined plane 6,6 ' angle be respectively 150 °, the lower end of left side wall 7, lower-left transition cambered surface 8, inclined-plane, lower-left 6, plane 5, inclined-plane, bottom right 6 ', bottom right transition cambered surface 8 ' with right side wall 7 ' the lower end smoothly link to each other successively.
The radome height, promptly the sleeve height is 0.63 λ～0.67 λ, and width is 1.38 λ～1.45 λ, and wherein λ is the wavelength of center of antenna frequency.Sleeve is fixed on antenna 1 on its lower wall plane 5 by screw 10.
In an embodiment of the utility model radome, sleeve height 34mm, width are 75mm, and wall thickness is 1.8mm～2.2mm.Wherein, the radius of arc surface 2 is 14.2mm, anti-phase arc surface 3,3 ' radius be 21.8mm, ramp 4,4 ' length be 12mm, last transition cambered surface 9,9 ' radius be 10mm, following transition cambered surface 8,8 ' radius be 14mm.
Because it is the symmetrical sleeve of axis that this radome design becomes with the aerial radiation direction, antenna chamber placed within, its upper wall and lower wall design outline are attractive in appearance small and exquisite, this design simultaneously has good improvement effect to the performance of antenna, with reference to Fig. 3, in the resolution chart of the utility model radome to the antenna performance influence, its more traditional orthodrome radome is compared, change the intrinsic capacitive reactance of antenna, increase whole induction reactance value, compare performance before and after having improved.Wherein, dotted line is the test curve of traditional antenna cover, and solid line is a test curve of the present utility model.At first be that gain to antenna does not have loss substantially, and the return loss of antenna is had comparatively significantly improvement, and can also reduce the back lobe of antenna, compare performance before and after improving, can improve about 2dB than generally before and after it, make antenna have better effect in actual applications.Radome is drawn by mould and forms, and can select the length of radome according to different antenna lengths, and processing and easy for installation is fit to the batch process of antenna.
Embodiment recited above is described preferred implementation of the present utility model, is not that design of the present utility model and scope are limited.Under the prerequisite that does not break away from the utility model design concept; various modification and improvement that this area ordinary person makes the technical solution of the utility model; all should drop into protection range of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (6)
1. radome, being included as one is the symmetrical sleeve of axis with the aerial radiation direction, its inner chamber is used to place antenna (1), it is characterized in that: described sleeve comprises left and right sidewall (7,7 ') and upper wall and the lower wall that is parallel to each other, wherein:
Described upper wall comprises that radius is the arc surface (2) of 0.25 λ～0.29 λ, radius is the anti-phase arc surfaces (3 of 2 of 0.39 λ～0.43 λ, 3 '), 2 length are the ramp (4 of 0.21 λ～0.25 λ, 4 ') and 2 last transition cambered surfaces (9,9 '), wherein λ is the wavelength of center of antenna frequency, described arc surface (2) and last transition cambered surface (9,9 ') the center of circle in inner chamber one side, described anti-phase arc surface (3,3 ') the center of circle in the inner chamber outside, described left side wall (7) is 100 ° with the angle on upper left inclined-plane (4), described right side wall (7 ') is 100 ° with the angle on upper right inclined-plane (4 '), the upper end of described left side wall (7), upper left transition cambered surface (9), upper left inclined-plane (4), a left side anti-phase arc surface (3), arc surface (2), right anti-phase arc surface (3 '), upper right inclined-plane (4 '), upper right transition cambered surface (9 ') smoothly links to each other successively with the upper end of right side wall (7 ');
Described lower wall comprises plane (5) and 2 following transition cambered surfaces (8,8 '), the center of circle of described transition cambered surface (8,8 ') down is in inner chamber one side, described plane (5) is respectively 150 ° with the angle of lower inclined plane (6,6 '), and the lower end of described left side wall (7), lower-left transition cambered surface (8), plane, inclined-plane, lower-left (6) (5), inclined-plane, bottom right (6 '), bottom right transition cambered surface (8 ') and the lower end of right side wall (7 ') smoothly link to each other successively.
2. radome according to claim 1 is characterized in that: wherein said sleeve height is 0.63 λ～0.67 λ, and width is 1.38 λ～1.45 λ.
3. radome according to claim 1 and 2, it is characterized in that: the radius of wherein said arc surface (2) is 14.2mm, the radius of anti-phase arc surface (3,3 ') is 21.8mm, the length of ramp (4,4 ') is 12mm, the radius of last transition cambered surface (9,9 ') is 10mm, and the radius of following transition cambered surface (8,8 ') is 14mm.
4. radome according to claim 3 is characterized in that: wherein said sleeve height 34mm, and width is 75mm, wall thickness is 1.8mm～2.2mm.
5. radome according to claim 4 is characterized in that: wherein said sleeve is fixed on antenna (1) on its lower wall plane (5) by screw (10).
6. radome according to claim 5 is characterized in that: wherein said sleeve adopts the PVC plastics to make, and the frequency range that is suitable for is 4.9GHz～5.8GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105553U CN201383537Y (en) | 2009-02-24 | 2009-02-24 | Antenna radome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105553U CN201383537Y (en) | 2009-02-24 | 2009-02-24 | Antenna radome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383537Y true CN201383537Y (en) | 2010-01-13 |
Family
ID=41527008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920105553U Expired - Fee Related CN201383537Y (en) | 2009-02-24 | 2009-02-24 | Antenna radome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383537Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407018A (en) * | 2013-07-04 | 2013-11-27 | 京信通信技术(广州)有限公司 | Antenna and antenna cover thereof as well as mould and forming process of antenna cover |
| CN104466388A (en) * | 2014-12-18 | 2015-03-25 | 佛山澳信科技有限公司 | Novel dual-polarized micro-strip planar antenna with ultra-wide radiation angle |
| WO2022251578A1 (en) * | 2021-05-27 | 2022-12-01 | John Mezzalingua Associates, LLC | Antenna radome for reduced wind loading |
| WO2023036192A1 (en) * | 2021-09-13 | 2023-03-16 | 华为技术有限公司 | Radome and antenna device |
-
2009
- 2009-02-24 CN CN200920105553U patent/CN201383537Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407018A (en) * | 2013-07-04 | 2013-11-27 | 京信通信技术(广州)有限公司 | Antenna and antenna cover thereof as well as mould and forming process of antenna cover |
| CN103407018B (en) * | 2013-07-04 | 2017-02-08 | 京信通信技术(广州)有限公司 | Antenna and antenna cover thereof as well as mould and forming process of antenna cover |
| CN104466388A (en) * | 2014-12-18 | 2015-03-25 | 佛山澳信科技有限公司 | Novel dual-polarized micro-strip planar antenna with ultra-wide radiation angle |
| WO2022251578A1 (en) * | 2021-05-27 | 2022-12-01 | John Mezzalingua Associates, LLC | Antenna radome for reduced wind loading |
| WO2023036192A1 (en) * | 2021-09-13 | 2023-03-16 | 华为技术有限公司 | Radome and antenna device |
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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 |
Granted publication date: 20100113 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |