CN101340020A - Ultra wideband omni-directional ceiling suction antenna - Google Patents
Ultra wideband omni-directional ceiling suction antenna Download PDFInfo
- Publication number
- CN101340020A CN101340020A CNA200810198004XA CN200810198004A CN101340020A CN 101340020 A CN101340020 A CN 101340020A CN A200810198004X A CNA200810198004X A CN A200810198004XA CN 200810198004 A CN200810198004 A CN 200810198004A CN 101340020 A CN101340020 A CN 101340020A
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- radiating doublet
- base plate
- ultra wideband
- metal base
- ceiling suction
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Abstract
The invention discloses an ultra-wideband omnidirectional ceiling antenna which is used for finishing the indoor signal coverage of a mobile communication system. The ultra-wideband omnidirectional ceiling antenna comprises a metal baseplate and a radiation oscillator which takes the shape of a generalized elliptical flake and is arranged above the metal baseplate, the tangential point which is tangent to the major axis of the radiation oscillator is arranged to be vertical to the metal baseplate; and the antenna also comprises at least one metal coupler, at least one end of each metal coupler is electrically and physically connected with the metal baseplate; and the antenna further comprises a connection feeder which is electrically connected with the radiation oscillator. The antenna manufactured based on the invention can obtain a lower all-band standing wave ratio and outstanding horizontal and vertical directional diagrams. The antenna has the advantages of simple and compact structure, high performance, easy manufacture and convenient installation and use. Compared with the main forms of the existing ceiling antennas, the antenna of the invention has extremely low cost and extraordinarily considerable economic value.
Description
[technical field]
The present invention relates to a kind of ultra wideband omni-directional ceiling suction antenna that is suitable for indoor covering.
[technical background]
Indoor distribution antenna is the important composition parts of mobile communication indoor covering system, has broad application prospects, and ceiling mount antenna is exactly wherein a kind of.
Along with the develop rapidly of wireless communication technology, system's kind of indoor covering is more and more, and the frequency range of requirement is abundant, mainly comprises the mobile traffic system of 806-960MHz, 1710-2170MHz, WLan system, the Wimax system of 2300-5800MHz etc.With regard to having higher requirement for the antenna that is used for indoor covering, at good looking appearance, when size was little, competitive antenna product required to realize ultratvide frequency band work like this.
Existing antenna has and adopts bipyramid on way of realization, also has to adopt single cone to add spherical crown, and this class antenna guaranteeing to be difficult to realize the requirement of indexs such as the low standing-wave ratio of full frequency band on the antenna direction performance good basis; In addition, the defective in the design causes the structural manufacturing process consistency poor, and these designs bring very big pressure to cost, in the face of keen competition is difficult to show one's talent.
[summary of the invention]
For this reason, purpose of the present invention will overcome above-mentioned deficiency exactly, and a kind of ultrabroad band all-around top absorbing antenna is provided, with the structure of concision and compact, cheap cost, design attractive in appearance, guaranteeing to realize that more excellent full frequency band hangs down standing-wave ratio on the antenna direction performance good basis.
For realizing this purpose, the present invention adopts following technical scheme:
A kind of ultra wideband omni-directional ceiling suction antenna of the present invention is used to finish the indoor covering of mobile communication system signal, comprising:
Metal base plate;
Radiating doublet is the oval sheet of broad sense, places the metal base plate top, and the tangent point of contact of its major axis is erect with metal base plate and is vertical setting;
At least one metallic coupler, the electrical and physical connection of at least one end of every metallic coupler and metal base plate;
Connect feeder line, electrically connect with radiating doublet.
The other end of described metallic coupler electrically and physical connection on radiating doublet, can play the effect of DC earthing.
Preferable, described radiating doublet is about a vertical plane symmetry perpendicular to the metal base plate center.Rounded or the regular polygon of described metal base plate.Minimum distance between described radiating doublet and the metal base plate is between 0.5-1mm.The ratio that described radiating doublet has minor axis and a major axis is for smaller or equal to 1: 1 and more than or equal to 1: 1.3 broad sense ellipsoidal structure.
Typically, when the ratio of the major axis of the oval-shaped radiating doublet of this broad sense and minor axis is 1: 1, form positive circle, as metal base plate is set also for positive circular.
When having a plurality of metallic coupler, divide to occupy on the metal base plate of radiating doublet both sides.
More specifically, the connection feeder line is a coaxial cable, and the metal base plate middle part is provided with through hole, and through hole is for being provided with coaxial connector, and the inner core that connects feeder line electrically connects by coaxial connector and this radiating doublet first.This antenna also comprises radome, fixes with metal base plate and covers and establish radiating doublet and metallic coupler.Described radiating doublet both can set firmly mutually with radome, also can set firmly mutually with this coaxial connector.
Compared with prior art, the present invention possesses following advantage:
At first, structure of the present invention is concision and compact very, and just escapable cost is convenient to safeguard and install thus, and can reach the effect that causes hiddenization design by the appropriate design radome to improve the aesthetic feeling of overall appearance;
Secondly, based on the radiating doublet unique design on the metal base plate, high-end in frequency range, can realize extremely low voltage standing wave ratio, after metallic coupler had been installed, the low side voltage standing wave ratio of frequency also had clear improvement, thereby at least in the frequency band range of 806-906MHz, 1710-5800MHz, voltage standing wave ratio is controlled in below 1.5, obtains the effect of the low standing-wave ratio of full frequency band;
Moreover, also can connect the problem that radiating doublet and metal base plate solve DC earthing respectively by the metallic coupler two ends, kill two birds with one stone.
[description of drawings]
Fig. 1 is the cross-sectional view of ultra wideband omni-directional ceiling suction antenna of the present invention;
Three-dimensional structure diagram when Fig. 2 does not add radome for ultra wideband omni-directional ceiling suction antenna of the present invention;
Fig. 3 is ultra wideband omni-directional ceiling suction antenna of the present invention three-dimensional structure diagram after improving, and radome is not shown;
Fig. 4 is the schematic of the voltage standing wave ratio of ultra wideband omni-directional ceiling suction antenna of the present invention;
Fig. 5 is the horizontal radiation pattern of ultra wideband omni-directional ceiling suction antenna of the present invention for the 1710MHz frequency range;
Fig. 6 is the elevation radiation patytern of ultra wideband omni-directional ceiling suction antenna of the present invention for the 1710MHz frequency range.
[embodiment]
The present invention is further illustrated below in conjunction with drawings and Examples:
See also Fig. 1 and Fig. 2, ultra wideband omni-directional ceiling suction antenna of the present invention comprises metal base plate 1, radome 6, radiating doublet 3, metallic coupler 2, connects feeder line 5 and coaxial connector 5.Because of connecting feeder line 5, part places in the coaxial connector 5, so illustrate jointly with same label 5.
Described metal base plate 1 is positive thin rounded flakes shape, and its shape is not subjected to the constraint of present embodiment, can be made into polygon (having more than the four limits) structure of rule.The center of metal base plate 1 is provided with through hole (not shown), and this through hole is used to be provided with described coaxial connector 5.
It is laminar that radiating doublet 3 is the broad sense ellipse, and so-called broad sense ellipse is meant all figures that satisfy elliptic equation, comprises positive circle and ellipse on the general geometric meaning, and also, positive circle is meant that the ratio of major axis and minor axis is 1: 1 a broad sense ellipse.The ratio of the major axis of radiating doublet 3 and minor axis is suitable smaller or equal to 1: 1 and more than or equal to 1: 1.3.
The thickness of metal base plate 1 and radiating doublet 3 should be significantly greater than the penetration depth of skin effect.Radiating doublet 3 places the top of metal base plate 1 center, and keeps the distance of 0.5-1mm to be advisable between the two.Radiating doublet 3 is with a bit vertical place metal base plate 1 top tangent with its major axis or minor axis.
It is shown in Figure 1 round table-like that described radome 6 is, can the minimize antenna area, achieve hidden preferably effect.Radome 6 sets firmly with metal base plate 1, so that with the components hide on the metal base plates 1 such as metallic coupler 2 and radiating doublet 3.
Described coaxial connector 5 is used for and is connected feeder line 5 and is connected, and connects that feeder line 5 is suitable to use coaxial cables, but not limited to by this.Coaxial connector 5 is installed in the through hole of metal base plate 1, and the inner core 4 of coaxial connector 5 is connected at a distance of a nearest end with radiating doublet 3 by coaxial connector 5, so that optimize overall structure.
As shown in Figure 2, radiating doublet 3 directly is installed on this coaxial connector 5.In like manner, also radiating doublet 3 can be set firmly mutually with radome 6 inwall tops, perhaps radiating doublet 3 be set firmly mutually with metal base plate 1 by an insulating part.Generally, anyly all can be used in the antenna of the present invention with the known approaches that guarantees the enough distances between this radiating doublet 3 and the metal base plate 1.
In another embodiment shown in Figure 3, except that metallic coupler 2 as previously mentioned the difference, other as metal base plate 1, coaxial connector 5, connect feeder line 5 etc. and all can remain unchanged.As seen, antenna of the present invention is spirit according to the present invention to carry out suitable change to its structure.
Ultra wideband omni-directional ceiling suction antenna of the present invention is tested under varying environments such as gypsum plaster ceiling board, cement ceiling, metal ceiling, and full frequency band has excellent directional diagram, sees Fig. 5 and shown in Figure 6 for details.806～960MHz frequency range, deviation in roundness are in ± 1.0dB, and voltage standing wave ratio is less than 1.5 (seeing also Fig. 4), and the actual measurement gain is greater than 2dBi.1710～2500MHz frequency range, deviation in roundness are in ± 2.0dB, and voltage standing wave ratio is less than 1.3, and the actual measurement gain is greater than 4dBi.2500～5800MHz frequency range, the actual measurement gain is greater than 4.5dBi, and voltage standing wave ratio is less than 1.5.Can satisfy the requirement of mobile communication system well.
Find out that easily this antenna will have simple and compact for structure and high performance advantage made in accordance with the present invention, and be easy to make and conveniently install and use.And compare with the principal mode of current ceiling mount antenna, cost of the present invention is extremely low, has considerable economic worth.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention not merely are restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (14)
1, a kind of ultra wideband omni-directional ceiling suction antenna is used to finish the indoor covering of mobile communication system signal, it is characterized in that, comprising:
Metal base plate;
Radiating doublet is the oval sheet of broad sense, places the metal base plate top;
At least one metallic coupler, the electrical and physical connection of an end of each metallic coupler and metal base plate;
Connect feeder line, electrically connect with radiating doublet.
2, ultra wideband omni-directional ceiling suction antenna according to claim 1 is characterized in that: this radiating doublet is to be vertically installed in the metal base plate top with the tangent point of contact of its major axis as end points.
3, ultra wideband omni-directional ceiling suction antenna according to claim 1 is characterized in that: described radiating doublet is about a vertical plane symmetry perpendicular to the metal base plate center.
4, ultra wideband omni-directional ceiling suction antenna according to claim 1 is characterized in that: the other end of described metallic coupler electrically and physical connection on radiating doublet.
5, ultra wideband omni-directional ceiling suction antenna according to claim 2 is characterized in that: the rounded or regular polygon of described metal base plate.
6, ultra wideband omni-directional ceiling suction antenna according to claim 1 is characterized in that: the minimum distance between described radiating doublet and the metal base plate is between 0.5-1mm.
7, ultra wideband omni-directional ceiling suction antenna according to claim 6 is characterized in that: the ratio that described radiating doublet has minor axis and major axis is 1: 1, promptly forms circular.
8, ultra wideband omni-directional ceiling suction antenna according to claim 6 is characterized in that: the ratio that described radiating doublet has minor axis and a major axis is for smaller or equal to 1: 1 and more than or equal to 1: 1.3 broad sense ellipsoidal structure.
9, according to any described ultra wideband omni-directional ceiling suction antenna in the claim 1 to 8, it is characterized in that: have a plurality of metallic coupler, divide to occupy on the metal base plate of radiating doublet both sides.
10, according to any described ultra wideband omni-directional ceiling suction antenna in the claim 1 to 8, it is characterized in that: the connection feeder line is a coaxial cable, the metal base plate middle part is provided with through hole, through hole is for being provided with coaxial connector, and the inner core that connects feeder line is by coaxial connector and this radiating doublet electric connection.
11, ultra wideband omni-directional ceiling suction antenna according to claim 10 is characterized in that: this antenna also comprises radome, fixes with metal base plate and covers and establish radiating doublet and metallic coupler.
12, ultra wideband omni-directional ceiling suction antenna according to claim 11 is characterized in that: described radiating doublet sets firmly mutually with radome.
13, ultra wideband omni-directional ceiling suction antenna according to claim 11 is characterized in that: described radiating doublet sets firmly mutually with this coaxial connector.
14, wideband omni-directional ceiling suction antenna according to claim 11 is characterized in that: described radiating doublet sets firmly with metal base plate mutually by an insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810198004XA CN101340020A (en) | 2008-08-26 | 2008-08-26 | Ultra wideband omni-directional ceiling suction antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810198004XA CN101340020A (en) | 2008-08-26 | 2008-08-26 | Ultra wideband omni-directional ceiling suction antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101340020A true CN101340020A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810198004XA Pending CN101340020A (en) | 2008-08-26 | 2008-08-26 | Ultra wideband omni-directional ceiling suction antenna |
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| Country | Link |
|---|---|
| CN (1) | CN101340020A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075865A1 (en) * | 2010-12-08 | 2012-06-14 | 京信通信系统（中国）有限公司 | Corridor mobile communication coverage distribution system and coupling radiation unit |
| CN103151605A (en) * | 2012-03-31 | 2013-06-12 | 深圳光启创新技术有限公司 | Wireless fidelity (Wi-Fi) ceiling mounted antenna device |
| CN105140628A (en) * | 2015-07-20 | 2015-12-09 | 华为技术有限公司 | Microstrip omnidirectional antenna and communication device |
| CN106252852A (en) * | 2016-09-18 | 2016-12-21 | 北京石油化工学院 | Monopole ultra-wideband antenna |
| CN107293845A (en) * | 2016-04-05 | 2017-10-24 | 上海中兴通讯技术股份有限公司 | A kind of vertically polarized omnidirectional ceiling mount antenna |
| WO2023115474A1 (en) * | 2021-12-23 | 2023-06-29 | 京东方科技集团股份有限公司 | Ceiling antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2831461Y (en) * | 2005-07-29 | 2006-10-25 | 摩比天线技术（深圳）有限公司 | Broad band ceiling antenna |
| CN1929201A (en) * | 2005-09-06 | 2007-03-14 | 环隆电气股份有限公司 | Ultra-wide band plane antenna |
-
2008
- 2008-08-26 CN CNA200810198004XA patent/CN101340020A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2831461Y (en) * | 2005-07-29 | 2006-10-25 | 摩比天线技术（深圳）有限公司 | Broad band ceiling antenna |
| CN1929201A (en) * | 2005-09-06 | 2007-03-14 | 环隆电气股份有限公司 | Ultra-wide band plane antenna |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130257673A1 (en) * | 2010-07-27 | 2013-10-03 | Comba Telecom System (China) Ltd | Mobile Communication Coverage Distribution System in Corridor and Coupled Radiation Unit |
| WO2012075865A1 (en) * | 2010-12-08 | 2012-06-14 | 京信通信系统（中国）有限公司 | Corridor mobile communication coverage distribution system and coupling radiation unit |
| CN103151605A (en) * | 2012-03-31 | 2013-06-12 | 深圳光启创新技术有限公司 | Wireless fidelity (Wi-Fi) ceiling mounted antenna device |
| CN103151605B (en) * | 2012-03-31 | 2015-06-17 | 深圳光启创新技术有限公司 | Wireless fidelity (Wi-Fi) ceiling mounted antenna device |
| CN105140628A (en) * | 2015-07-20 | 2015-12-09 | 华为技术有限公司 | Microstrip omnidirectional antenna and communication device |
| CN105140628B (en) * | 2015-07-20 | 2018-07-03 | 华为技术有限公司 | A kind of micro-strip omnidirectional antenna and communication device |
| CN107293845A (en) * | 2016-04-05 | 2017-10-24 | 上海中兴通讯技术股份有限公司 | A kind of vertically polarized omnidirectional ceiling mount antenna |
| CN106252852A (en) * | 2016-09-18 | 2016-12-21 | 北京石油化工学院 | Monopole ultra-wideband antenna |
| WO2023115474A1 (en) * | 2021-12-23 | 2023-06-29 | 京东方科技集团股份有限公司 | Ceiling antenna |
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Application publication date: 20090107 |