CN2877057Y - Wide-band omnidirectional ceiling antenna - Google Patents
Wide-band omnidirectional ceiling antenna Download PDFInfo
- Publication number
- CN2877057Y CN2877057Y CN 200620056145 CN200620056145U CN2877057Y CN 2877057 Y CN2877057 Y CN 2877057Y CN 200620056145 CN200620056145 CN 200620056145 CN 200620056145 U CN200620056145 U CN 200620056145U CN 2877057 Y CN2877057 Y CN 2877057Y
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- radiant body
- antenna
- radiator
- base plate
- ceiling suction
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Abstract
The utility model relates to ceiling-mounting, omni-directional broadband antenna used for mobile communication chamber. The antenna comprises radiator, a bottom plate, and an antenna cover, wherein the radiator is provided on a bottom plate, and the antenna cover is mounted together with the bottom plate to cover the radiator. The radiator includes a cylindrical upper portion and an obconical lower portion, which are connected together, and a metal cylinder is connected to the bottom of the radiator and is provided therein with a through hole along longitudinal direction. The center conductor of a coaxial connector penetrates through the through hole and is connected with the metal cylinder and the lower portion of the radiator. The provision of the metal cylinder effectively suppresses energy reflector caused by current mutation, adjusts antenna impedance characteristics and solves the problems of large diameter of the radiator. Accordingly, the antenna has low standing wave ratio in the entire frequency band.
Description
[technical field]
The utility model relates to a kind of wideband omni-directional ceiling suction antenna of mobile communication indoor covering system.
[technical background]
Domestic aerial is the critical component of mobile communication indoor covering system, has broad application prospects.Ceiling mount antenna is exactly wherein a kind of.In order to allow ceiling mount antenna realize that multiband is shared, need to solve the wideband problem of antenna, and the technical measures of existing widening frequency band are the shape and size that change antenna radiator, thereby realize the purpose of broadening antenna frequency band.Existing antenna has the employing bipyramid on way of realization, also have and adopt single cone to add spherical crown, but these antenna all exists the problem of bandwidth of operation, for the broadening bandwidth, can only increase the debugging parts at radiant body, so just influenced the deviation in roundness of antenna pattern, however, defective in the design makes that such antenna consistency on processability of product structure is poor, high band standing wave mis-behave is serious, can't realize allowing to be applicable to varying environment and index is constant, make that indoor coverage effect is inhomogeneous with a antenna.
[utility model content]
The purpose of this utility model will overcome above-mentioned deficiency exactly, provides a kind of environmental constraints that is not subjected to also can keep low standing-wave ratio and good horizontal omnidirectional, is suitable for the wideband omni-directional ceiling suction antenna of indoor use.
The purpose of this utility model is achieved by the following technical solution: this wideband omni-directional ceiling suction antenna comprises radiant body, base plate and radome, described radiant body is installed on the base plate, radome then cooperate with base plate install radiant body sheathed in it, wherein, described radiant body comprises the upper and lower, top is column type, it is tapered that the bottom then is rounding, top and bottom are coupled as one, the radiant body bottom is connected with the round metal column piece, be provided with the wire guide of perforation in the round metal column piece along longitudinally, the center conductor of coaxial connector passes this wire guide and is connected with the radiant body bottom with metal cylinder simultaneously.
For making effect of the present utility model reach optimum, the described height that is the radiant body top of column type is 0.1 λ～0.3 λ, and diameter is 0.35 λ～0.6 λ; The described tapered radiant body lower height of rounding that is is 0.1 λ～0.3 λ, and cone angle is 100～140 degree.
In addition, radome should match with radiant body and base plate, and radome can be designed to round table-like the lid mutually with base plate and establish.
Compared with prior art, the utility model possesses following advantage: by set up column type top on radiant body, solved because current reflection and excessive antenna this two large problems attractive in appearance that influences of radiant body diameter that current break causes; And the introducing of round metal column piece regulated the antenna impedance characteristic effectively, makes antenna present lower standing-wave ratio in whole frequency band; Radome design is become match with radiant body round table-like, antenna volume is minimized.
Below in conjunction with drawings and Examples the utility model is further described:
[description of drawings]
Fig. 1 is and the vertical midship section structure schematic diagram of the utility model;
Structural representation when Fig. 2 removes radome for the utility model.
[embodiment]
See also Fig. 1, the utility model wideband omni-directional ceiling suction antenna comprises radiant body, base plate 7 and radome 3, described radiant body comprises the bottom 1 that is cylindrical top 8 and is inverted cone, top 8 is one-body molded with bottom 1, radiant body top 8 also is covered with a dome 5, and dome 5 peripheries are by screw and 8 lockings of this top.Described base plate 7 is the disk shape, and its middle part offers through hole, through hole bottom installing coaxial connector 4, and thus, the center conductor of coaxial connector 4 can pass these base plate 7 through holes and be connected with radiant body.Be connected by three ground strips 6 between radiant body and the base plate 7, each ground strip 6 one end is locked on the base plate 7, the other end then by locking on radiant body, and radiant body supported.Described radome 3 adopts plastic material, as PS, ABS etc. make, be designed to radiant body and base plate 7 close-fitting round table-like, it shows on the longitudinal section of Fig. 1 and is trapezoidal shape, radome 3 and base plate 7 can be fixed by tapping screw, so that the radiant body tegmentum is located in the inner chamber of radome 3 and base plate 7 formations.
In addition, radiant body also is connected with a round metal column piece 2 at the place, bottom that it is inverted cone, and the height of this round metal column piece 2 and diameter all can change according to the needs of antenna match.Round metal column piece 2 also offers the wire guide (not shown) of perforation along its longitudinally, the center conductor of described coaxial connector 4 passes the wire guide (not shown) that passes round metal column piece 2 behind the through hole of base plate 7 again and realizes being connected with radiant body bottom 1 with round metal column piece 2 simultaneously.Being connected between center conductor and each parts, can adopt welding or the fastening mode of nut to realize.
When the various sizes of radiant body top 8 and bottom 1 reached certain ratio, effect of the present utility model is more excellent, is specially: the described height that is column type radiant body top 8 was 1/6 wavelength, and diameter is 1/2 wavelength; The described tapered radiant body bottom 1 of rounding that is highly is 1/6 wavelength, and cone angle is 110～130 degree.The product structure figure that goes out by this size design can consult shown in Figure 2.
Realization shows that following size range also can embody effect of the present utility model, and the height that promptly is the radiant body top of column type is 0.1 λ～0.3 λ, and diameter is 0.35 λ～0.6 λ; The described tapered radiant body lower height of rounding that is is 0.1 λ～0.3 λ, and cone angle is 100～140 degree.Wherein λ is a wavelength.
The indoor ceiling mount antenna sample that constitutes by above-mentioned execution mode, under varying environments such as gypsum plaster ceiling board, cement ceiling, metal ceiling, test, pattern characteristics is good in the full frequency band, 806～960MHz frequency range, deviation in roundness are in ± 1.0dB, and the actual measurement gain is greater than 2.0dBi, 1710～2500MHz frequency range, deviation in roundness is in ± 2.0dB, and the actual measurement gain is greater than 5.0dBi, and the maximum standing-wave ratio of full range band 800～2500MHz is less than 1.4.Therefore, this execution mode can satisfy the requirement of mobile communication system well.
Find out to have strong, the simple and compact for structure and high performance advantage of environment applicability easily, and be easy to make, cheaply and conveniently install and use according to this antenna of the utility model manufacturing.
Claims (6)
1, a kind of wideband omni-directional ceiling suction antenna, comprise radiant body, base plate and radome, described radiant body is bearing on the base plate by some ground strips, radome then cooperates with base plate to install to be established the radiant body lid in it, it is characterized in that: described radiant body comprises the upper and lower, top is column type, it is tapered that the bottom then is rounding, top and bottom are coupled as one, the radiant body bottom is connected with the round metal column piece, be provided with the wire guide of perforation in the round metal column piece along longitudinally, the center conductor of coaxial connector passes this wire guide and is connected with the radiant body bottom with metal cylinder simultaneously.
2, wideband omni-directional ceiling suction antenna according to claim 1 is characterized in that: described radiant body upper cap is provided with dome spare.
3, wideband omni-directional ceiling suction antenna according to claim 2 is characterized in that: the described height that is the radiant body top of column type is 0.1 λ～0.3 λ, and diameter is 0.35 λ～0.6 λ; The described tapered radiant body lower height of rounding that is is 0.1 λ～0.3 λ, and cone angle is 100～140 degree.
4, according to any described wideband omni-directional ceiling suction antenna of claim 1 to 3, it is characterized in that: described radome is round table-like.
5, according to any described wideband omni-directional ceiling suction antenna of claim 1 to 3, it is characterized in that: described each ground strip supports between radiant body and base plate and with described radiant body with the locking of screw equal angles ground.
6, wideband omni-directional ceiling suction antenna according to claim 4 is characterized in that: described each ground strip supports between radiant body and base plate and with described radiant body with the locking of screw equal angles ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620056145 CN2877057Y (en) | 2006-03-14 | 2006-03-14 | Wide-band omnidirectional ceiling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620056145 CN2877057Y (en) | 2006-03-14 | 2006-03-14 | Wide-band omnidirectional ceiling antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2877057Y true CN2877057Y (en) | 2007-03-07 |
Family
ID=37820293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620056145 Expired - Fee Related CN2877057Y (en) | 2006-03-14 | 2006-03-14 | Wide-band omnidirectional ceiling antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2877057Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645536A (en) * | 2008-08-06 | 2010-02-10 | Pc-Tel公司 | Multi-band ceiling antenna |
| CN101938036A (en) * | 2010-09-03 | 2011-01-05 | 泉州佳信天线有限公司 | Low-section broadband omnidirectional ceiling antenna |
| CN101694904B (en) * | 2009-10-16 | 2011-09-28 | 中国联合网络通信集团有限公司 | All-around top absorbing antenna used in indoor distribution system of mobile communication network |
| CN101345342B (en) * | 2008-09-03 | 2012-01-11 | 北京航空航天大学 | Omnidirectional wideband antenna with conformal structure of installing surface |
| CN102509903A (en) * | 2011-10-30 | 2012-06-20 | 江苏安特耐科技有限公司 | Dual-polarization ceiling antenna |
| CN101662071B (en) * | 2009-09-29 | 2012-09-26 | 哈尔滨工程大学 | Broadband omnidirectional antenna for mobile communication |
| CN102709712A (en) * | 2012-06-20 | 2012-10-03 | 上海东洲罗顿通信技术有限公司 | Dual-polarization indoor omni-directional ceiling antenna of long-term evolution mobile communication system |
| CN103066377A (en) * | 2012-12-31 | 2013-04-24 | 佛山市粤海信通讯有限公司 | Radiating unit and broadband high-intermodulation omni-directional ceiling antenna |
| CN103117451A (en) * | 2013-03-04 | 2013-05-22 | 金明涛 | Ultra wide band antenna |
| CN103441323A (en) * | 2013-07-24 | 2013-12-11 | 珠海德百祺科技有限公司 | Antenna |
| CN104979622A (en) * | 2014-04-08 | 2015-10-14 | 蒋云阳 | Special-shaped cone cylinder broadband antenna |
| US10074909B2 (en) | 2015-07-21 | 2018-09-11 | Laird Technologies, Inc. | Omnidirectional single-input single-output multiband/broadband antennas |
| CN109244629A (en) * | 2018-09-25 | 2019-01-18 | 李训祺 | A kind of dual-broadband and dual-polarization omni-directional ceiling antenna |
-
2006
- 2006-03-14 CN CN 200620056145 patent/CN2877057Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645536A (en) * | 2008-08-06 | 2010-02-10 | Pc-Tel公司 | Multi-band ceiling antenna |
| CN101645536B (en) * | 2008-08-06 | 2014-09-17 | Pc-Tel公司 | Multi-band ceiling antenna |
| CN101345342B (en) * | 2008-09-03 | 2012-01-11 | 北京航空航天大学 | Omnidirectional wideband antenna with conformal structure of installing surface |
| CN101662071B (en) * | 2009-09-29 | 2012-09-26 | 哈尔滨工程大学 | Broadband omnidirectional antenna for mobile communication |
| CN101694904B (en) * | 2009-10-16 | 2011-09-28 | 中国联合网络通信集团有限公司 | All-around top absorbing antenna used in indoor distribution system of mobile communication network |
| CN101938036B (en) * | 2010-09-03 | 2013-04-03 | 泉州佳信天线有限公司 | Low-section broadband omnidirectional ceiling antenna |
| CN101938036A (en) * | 2010-09-03 | 2011-01-05 | 泉州佳信天线有限公司 | Low-section broadband omnidirectional ceiling antenna |
| CN102509903A (en) * | 2011-10-30 | 2012-06-20 | 江苏安特耐科技有限公司 | Dual-polarization ceiling antenna |
| CN102509903B (en) * | 2011-10-30 | 2014-05-07 | 江苏安特耐科技有限公司 | Dual-polarization ceiling antenna |
| CN102709712A (en) * | 2012-06-20 | 2012-10-03 | 上海东洲罗顿通信技术有限公司 | Dual-polarization indoor omni-directional ceiling antenna of long-term evolution mobile communication system |
| CN102709712B (en) * | 2012-06-20 | 2014-11-26 | 上海东洲罗顿通信股份有限公司 | Dual-polarization indoor omni-directional ceiling antenna of long-term evolution mobile communication system |
| CN103066377A (en) * | 2012-12-31 | 2013-04-24 | 佛山市粤海信通讯有限公司 | Radiating unit and broadband high-intermodulation omni-directional ceiling antenna |
| CN103117451A (en) * | 2013-03-04 | 2013-05-22 | 金明涛 | Ultra wide band antenna |
| CN103441323A (en) * | 2013-07-24 | 2013-12-11 | 珠海德百祺科技有限公司 | Antenna |
| CN103441323B (en) * | 2013-07-24 | 2016-12-07 | 江苏省东方世纪网络信息有限公司 | Antenna |
| CN104979622A (en) * | 2014-04-08 | 2015-10-14 | 蒋云阳 | Special-shaped cone cylinder broadband antenna |
| US10074909B2 (en) | 2015-07-21 | 2018-09-11 | Laird Technologies, Inc. | Omnidirectional single-input single-output multiband/broadband antennas |
| CN109244629A (en) * | 2018-09-25 | 2019-01-18 | 李训祺 | A kind of dual-broadband and dual-polarization omni-directional ceiling antenna |
| CN109244629B (en) * | 2018-09-25 | 2020-12-18 | 司南微电子(深圳)有限公司 | Double-broadband dual-polarized omnidirectional ceiling antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 Termination date: 20150314 |
|
| EXPY | Termination of patent right or utility model |