CN203232959U - A dual-polarized ceiling antenna - Google Patents
A dual-polarized ceiling antenna Download PDFInfo
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- CN203232959U CN203232959U CN 201320165114 CN201320165114U CN203232959U CN 203232959 U CN203232959 U CN 203232959U CN 201320165114 CN201320165114 CN 201320165114 CN 201320165114 U CN201320165114 U CN 201320165114U CN 203232959 U CN203232959 U CN 203232959U
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- antenna
- polarized antenna
- horizontally
- reflecting plate
- radiating element
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Abstract
The utility model provides a dual-polarized ceiling antenna comprising a reflecting plate, at least three horizontally-polarized antenna radiating units, a vertically-polarized antenna radiating unit, a horizontally-polarized antenna power distributing network, a first feeder line, and a second feeder line. The at least three horizontally-polarized antenna radiating units are uniformly distributed on the edges of the top surface of the reflecting plate. The vertically-polarized antenna radiating unit is disposed on the central position of the top surface of the reflecting plate. The horizontally-polarized antenna power distributing network is used for enabling the horizontally-polarized antenna radiating units to perform power feeding with same phases and equal amplitude. The horizontally-polarized antenna power distributing network is disposed on the bottom surface of the reflecting plate. The horizontally-polarized antenna radiating units are electrically connected with the horizontally-polarized antenna power distributing network. The first feeder line is electrically connected with the horizontally-polarized antenna power distributing network. The second feeder line is electrically connected with the vertically-polarized antenna radiating unit. The dual-polarized ceiling antenna has advantages of high radiating gain, uniform signals, reasonable directionality, and high isolation degree, and reduces the height of the outline of the antenna.
Description
Technical field
The utility model belongs to communication technical field, relates in particular to a kind of improvement of dual polarization ceiling mount antenna.
Background technology
In the 4th third-generation mobile communication system in future, the dual polarized antenna technology becomes one of key technology, and the electric field that aerial radiation forms has certain direction, and this area is referred to as the polarization of antenna.When direction of an electric field during perpendicular to ground, this electric wave just is called vertically polarized wave; When direction of an electric field was parallel to ground, this electric wave just was called horizontal polarized wave.Because the characteristic of electric wave, the signal that has determined horizontal polarization to propagate can produce polarization current at big ground surface when ground proximity, polarization current decays electric field signal rapidly because being subjected to the earth impedance influences to produce heat energy, the perpendicular polarization mode then is difficult for producing polarization current, thereby avoided the significantly decay of energy, guaranteed the effect spread that has of signal.Therefore, in mobile communication system, generally all adopt the circulation way of perpendicular polarization.In addition, along with the development of new technology, a kind of dual polarized antenna has appearred again recently, i.e. the polarized wave of two kinds of directions of an electric field of radiation simultaneously.Divide according to the compound mode of polarized wave direction of an electric field, generally dual polarized antenna is divided into following two kinds: the 1) dual polarized antenna that is combined to form of perpendicular polarization and horizontal polarization; 2) dual polarized antenna that is combined to form of ° polarization ± 45.
In the prior art, normally be combined into dual polarized antenna to intersect the mode of stacked horizontally-polarized antenna and vertical polarized antenna, not only there is the not good problem of isolation, gain, circularity in this class dual polarized antenna, and it line profile height dimension is big, and it is many to take up room.The vertical polarized antenna of dual polarized antenna is generally taper seat in the prior art, and this class antenna manufacturing process complexity, manufactured materials are many, and has strengthened the overall weight of dual polarized antenna.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, and the dual polarization ceiling mount antenna of a kind of high-isolation, high-gain, low profile is provided.
The utility model is to realize like this, a kind of dual polarization ceiling mount antenna, comprise: reflecting plate, at least three even distributions are located in described reflecting plate upper surface peripheral horizontal poliarizing antenna radiating element, be located at the vertical polarized antenna radiating element of described reflecting plate upper surface center, be used for making described horizontally-polarized antenna radiating element carry out the horizontally-polarized antenna power division network of homophase constant amplitude feed, first feeder line and second feeder line, described horizontally-polarized antenna power division network is located at described reflecting plate lower surface, each described horizontally-polarized antenna radiating element all is electrically connected with described horizontally-polarized antenna power division network, described first feeder line is electrically connected with described horizontally-polarized antenna power division network, and described second feeder line is electrically connected with described vertical polarized antenna radiating element.
Further, described vertical polarized antenna radiating element comprises at least three by the extended branch of same convergent point antenna, each described branch antenna is about described convergent point center symmetry, and described convergent point is positioned at described reflecting plate upper surface center and is electrically connected with described second feeder line.
Further, described branch antenna comprises end to end successively root segment, changeover portion and latter end, and root segment one end of each described branch antenna converges on the described convergent point and is electrically connected each other.
Particularly, the root segment of described branch antenna and described reflecting plate upper surface form acute angle.
More specifically, the changeover portion of described branch antenna is L shaped.
Especially, the latter end of described branch antenna is perpendicular to described reflecting plate upper surface, and latter end one end of described branch antenna is located on the described reflecting plate upper surface.
Further, described horizontally-polarized antenna radiating element comprises symmetrical dipole and supports the brace of described symmetrical dipole, and described brace one end connects described symmetrical dipole, and its other end is located on the described reflecting plate upper surface.
Preferably, described symmetrical dipole is half-wave doublet and is " U " shape.
Further, comprise that also several are used to improve the adjustment sheet of radiation circularity, standing-wave ratio, gain, the even upper surface periphery that distributes and vertically be located in described reflecting plate of described adjustment sheet.
The utlity model has following technique effect:
1) the horizontally-polarized antenna radiating element is uniformly distributed in the periphery of reflecting plate, the vertical polarized antenna radiating element is positioned at reflecting plate upper surface center, like this, horizontal polarization radiation signal and perpendicular polarization radiation signal can both evenly be launched, and intensity is bigger, transmitting range is farther, guarantees that receiving terminal can receive signal better.Compare with existing dual polarization ceiling mount antenna, because horizontally-polarized antenna radiating element of the present utility model and vertical polarized antenna radiating element are in the same plane, and be not intersect or up and down the stack mode arrange, therefore can reduce the dual polarised radiation interference between signals significantly, improved isolation and gain, conplane setting has also reduced the profile height of antenna.
2) each branch's antenna of vertical polarized antenna radiating element can be formed by the plain conductor bending, also can be formed by the welding of multistage plain conductor, and its processing technology is simple, has good deviation in roundness, standing-wave ratio and gain index.Simultaneously, can alleviate the weight of antenna greatly.The changeover portion of branch's antenna is L shaped, electric current flows through L shaped changeover portion, because each horizontal polarization feed is coupled to two L shaped changeover portion perpendicular polarization signals simultaneously, simultaneously two side signal transmissions to opposite, amplitude is identical, therefore coupled signal is cancelled out each other, reduce the interference between horizontally-polarized antenna radiating element and the vertical polarized antenna radiating element so significantly, realized the high-isolation index of dual polarized antenna.
Description of drawings
Fig. 1 is the schematic perspective view of dual polarization ceiling mount antenna among the utility model embodiment;
Fig. 2 is the schematic perspective view of branch's antenna among the utility model embodiment;
Fig. 3 is the vertical view of dual polarization ceiling mount antenna among the utility model embodiment;
Fig. 4 is the schematic diagram of horizontally-polarized antenna power division network among the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Referring to Fig. 1 and Fig. 3, the utility model embodiment provides a kind of dual polarization ceiling mount antenna, comprise: reflecting plate 1, at least three even distributions are located in described reflecting plate 1 upper surface peripheral horizontal poliarizing antenna radiating element 2, be located at the vertical polarized antenna radiating element 3 of described reflecting plate 1 upper surface center, be used for making described horizontally-polarized antenna radiating element 2 carry out the horizontally-polarized antenna power division network 4(of homophase constant amplitude feed referring to Fig. 4), first feeder line and second feeder line are (because feeder line is known technology, therefore figure does not show), described horizontally-polarized antenna power division network 4 is located at described reflecting plate 1 lower surface, each described horizontally-polarized antenna radiating element 2 all is electrically connected with described horizontally-polarized antenna power division network 4, described first feeder line is electrically connected with described horizontally-polarized antenna power division network 4, and described second feeder line is electrically connected with described vertical polarized antenna radiating element 3.Horizontal polarization radiation signal of the present utility model and perpendicular polarization radiation signal can both evenly be launched, and intensity is bigger, transmitting range is farther, guarantee that reception antenna can receive signal better.Compare with existing dual polarization ceiling mount antenna, because horizontally-polarized antenna radiating element 2 of the present utility model and vertical polarized antenna radiating element 3 (being the upper surface of reflecting plate 1) in the same plane, and be not intersect or up and down the stack mode arrange, therefore can reduce the dual polarised radiation interference between signals significantly, improved isolation and gain, conplane setting has also reduced the profile height of antenna.As a kind of preferred implementation of the present utility model, the quantity of horizontally-polarized antenna radiating element 2 and vertical polarized antenna radiating element 3 is three.First feeder line and second feeder line can be drawn by reflecting plate 1 lower surface, with horizontally-polarized antenna radiating element 2 and vertical polarized antenna radiating element 3 coplanars, have not avoided the interference of feeder line to radiation signal, have improved radiation circularity, have also further improved isolation.The utility model also can add the outer cover (not shown) that is covered on the reflecting plate 1, for the protection of horizontally-polarized antenna radiating element 2 and vertical polarized antenna radiating element 3 and other parts, and simultaneously can also water proof and dust proof.
Referring to Fig. 3, described vertical polarized antenna radiating element 3 comprises at least three by same convergent point 32 extended branch antennas 31, each described branch antenna 31 is about described convergent point 32 center symmetries, and described convergent point 32 is positioned at described reflecting plate 1 upper surface center and is electrically connected with described second feeder line.Branch's antenna 31 can be formed by the plain conductor bending, also can be formed by the welding of multistage plain conductor.
Referring to Fig. 2, described branch antenna 31 comprises end to end successively root segment 311, changeover portion 312 and latter end 313, and root segment 311 1 ends of each described branch antenna 31 converge on the described convergent point 32 and are electrically connected (referring to Fig. 1) each other.Electric current flows in branch's antenna 31 each sections, form electric field and magnetic field (being radiation signal), compare with existing vertical polarized antenna, vertical polarized antenna radiating element 3 processing technologys that the utility model embodiment provides are simpler, have good deviation in roundness, standing-wave ratio and gain index.Simultaneously, the height of outline of the present utility model can be done lowlyer, and conserve space prevents from being clashed into easily when antenna is installed on lower ceiling and damages.
Referring to Fig. 1, the root segment 311 of described branch antenna 31 forms acute angle with described reflecting plate 1 upper surface.The root segment 311 that is appreciated that each branch's antenna 31 encloses and just forms a virtual taper surface, and with respect to the vertical polarized antenna of existing taper surface, under the situation that does not influence performance, economical with materials more can alleviate the weight of antenna greatly.
Referring to Fig. 2, the changeover portion 312 of described branch antenna 31 is L shaped.L shaped design not only can reduce the whole height of vertical polarized antenna radiating element 3, and is conducive to emission and the reception of radiation signal.Electric current flows through L shaped changeover portion 312, because each horizontal polarization feed is coupled to two L shaped changeover portion 312 perpendicular polarization signals simultaneously, simultaneously two side signal transmissions to opposite, amplitude is identical, therefore coupled signal is cancelled out each other, reduce the interference between horizontally-polarized antenna radiating element 2 and the vertical polarized antenna radiating element 3 so significantly, realized the high-isolation index of dual polarized antenna.
Referring to Fig. 1, the latter end 313 of described branch antenna 31 is perpendicular to described reflecting plate 1 upper surface, and latter end 313 1 ends of described branch antenna 31 are located on described reflecting plate 1 upper surface.Like this, the latter end 313 of branch's antenna 31 plays when transmitting effect and can also play the effect of supporting firm whole vertical polarized antenna radiating element 3.
Referring to Fig. 1, described horizontally-polarized antenna radiating element 2 comprises symmetrical dipole 21 and supports the brace 22 of described symmetrical dipole 21, and described brace 22 1 ends connect described symmetrical dipole 21, and its other end is located on described reflecting plate 1 upper surface.Brace 22 makes symmetrical dipole 21 and reflecting plate 1 upper surface maintain a certain distance, and makes signal frequency that horizontally-polarized antenna radiating element 2 launches within normal range of operation.As a kind of preferred implementation of the present utility model, plane, symmetrical dipole 21 place is parallel with reflecting plate 1 upper surface, can play and strengthen the effect that horizontally-polarized antenna radiating element 2 transmits, and is conducive to emission and the reception of signal.
Referring to Fig. 1, described symmetrical dipole 21 is half-wave doublet and is " U " shape, satisfies the requirement that antenna transmits.
Referring to Fig. 4, the utility model embodiment comprises that also several are used to improve the adjustment sheet 5 of radiation circularity, standing-wave ratio, gain, the described adjustment sheet 5 even upper surface peripheries that distribute and vertically be located in described reflecting plate 1.Adjustment sheet 5 can be uniformly distributed in reflecting plate 1 upper surface periphery in couples as Fig. 1 and shown in Figure 2, and adjustment sheet 5 is in couples between per two horizontally-polarized antenna radiating elements 2.Adjustment sheet 5 plays the effect that improves radiation circularity, standing-wave ratio, gain.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace or improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. dual polarization ceiling mount antenna, it is characterized in that, comprise: reflecting plate, at least three even distributions are located in described reflecting plate upper surface peripheral horizontal poliarizing antenna radiating element, be located at the vertical polarized antenna radiating element of described reflecting plate upper surface center, be used for making described horizontally-polarized antenna radiating element carry out the horizontally-polarized antenna power division network of homophase constant amplitude feed, first feeder line and second feeder line, described horizontally-polarized antenna power division network is located at described reflecting plate lower surface, each described horizontally-polarized antenna radiating element all is electrically connected with described horizontally-polarized antenna power division network, described first feeder line is electrically connected with described horizontally-polarized antenna power division network, and described second feeder line is electrically connected with described vertical polarized antenna radiating element.
2. dual polarization ceiling mount antenna as claimed in claim 1, it is characterized in that: described vertical polarized antenna radiating element comprises at least three by the extended branch of same convergent point antenna, each described branch antenna is about described convergent point center symmetry, and described convergent point is positioned at described reflecting plate upper surface center and is electrically connected with described second feeder line.
3. dual polarization ceiling mount antenna as claimed in claim 2, it is characterized in that: described branch antenna comprises end to end successively root segment, changeover portion and latter end, root segment one end of each described branch antenna converges on the described convergent point and is electrically connected each other.
4. dual polarization ceiling mount antenna as claimed in claim 3 is characterized in that: the root segment of described branch antenna and described reflecting plate upper surface formation acute angle.
5. dual polarization ceiling mount antenna as claimed in claim 3, it is characterized in that: the changeover portion of described branch antenna is L shaped.
6. dual polarization ceiling mount antenna as claimed in claim 3, it is characterized in that: the latter end of described branch antenna is perpendicular to described reflecting plate upper surface, and latter end one end of described branch antenna is located on the described reflecting plate upper surface.
7. dual polarization ceiling mount antenna as claimed in claim 1, it is characterized in that: described horizontally-polarized antenna radiating element comprises symmetrical dipole and supports the brace of described symmetrical dipole, described brace one end connects described symmetrical dipole, and its other end is located on the described reflecting plate upper surface.
8. dual polarization ceiling mount antenna as claimed in claim 7 is characterized in that: described symmetrical dipole is half-wave doublet and is " U " shape.
9. dual polarization ceiling mount antenna as claimed in claim 1 is characterized in that: comprise that also several are used to improve the adjustment sheet of radiation circularity, standing-wave ratio, gain, the even upper surface periphery that distributes and vertically be located in described reflecting plate of described adjustment sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165114 CN203232959U (en) | 2013-04-03 | 2013-04-03 | A dual-polarized ceiling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165114 CN203232959U (en) | 2013-04-03 | 2013-04-03 | A dual-polarized ceiling antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232959U true CN203232959U (en) | 2013-10-09 |
Family
ID=49289063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165114 Expired - Fee Related CN203232959U (en) | 2013-04-03 | 2013-04-03 | A dual-polarized ceiling antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219596A (en) * | 2013-04-03 | 2013-07-24 | 深圳市华一通信技术有限公司 | Dual-polarized ceiling antenna |
| EP4191792A1 (en) * | 2021-12-06 | 2023-06-07 | Japan Aviation Electronics Industry, Limited | Antenna device |
-
2013
- 2013-04-03 CN CN 201320165114 patent/CN203232959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219596A (en) * | 2013-04-03 | 2013-07-24 | 深圳市华一通信技术有限公司 | Dual-polarized ceiling antenna |
| CN103219596B (en) * | 2013-04-03 | 2016-05-18 | 深圳市华一通信技术有限公司 | Dual-polarization ceiling antenna |
| EP4191792A1 (en) * | 2021-12-06 | 2023-06-07 | Japan Aviation Electronics Industry, Limited | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20180403 |