CN204375957U - A kind of novel LTE dual polarization compartment antenna - Google Patents
A kind of novel LTE dual polarization compartment antenna Download PDFInfo
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- CN204375957U CN204375957U CN201520005796.XU CN201520005796U CN204375957U CN 204375957 U CN204375957 U CN 204375957U CN 201520005796 U CN201520005796 U CN 201520005796U CN 204375957 U CN204375957 U CN 204375957U
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- radiating doublet
- antenna
- dual polarization
- reflecting plate
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Abstract
The utility model relates to a kind of novel LTE dual polarization compartment antenna, comprises a reflecting plate, one first radiating doublet and one second radiating doublet; The first described radiating doublet is fixed on described reflecting plate by one first fixed leg, one first holding screw and one first alignment pin, and the second described radiating doublet is fixed on the opposite side of described reflecting plate by one second fixed leg, one second holding screw and one second alignment pin; Distributing point is equipped with, in order to be connected with feeder cable bottom the first described radiating doublet and the second described radiating doublet; Described first radiating doublet and the described independent feed of the second radiating doublet, export in order to form dual polarization dual-port.The present invention can make up the space attenuation of high-frequency signal and the unbalanced problem of covering of traditional antenna, promotes the covering performance of TD-LTE, simplifies the processing technology of oscillator, greatly reduce the production cost of antenna, perfection can apply to all kinds of mobile communication system.
Description
Technical field
The utility model relates to wireless communication technology field, particularly a kind of novel LTE dual polarization compartment antenna.
Background technology
Along with the development of information technology, antenna technology is also at development, and simple antenna type can not meet present panoramic product needed in the past, and modern antennas technology is also experiencing dramatic change; Along with expanding economy, in city, high building density constantly increases, and underground installation is also on the increase, and causes the signal of mobile communication to be propagated and is had a strong impact on, thus forms many blind areas and the dead band of mobile communication.For expanding base station range, improve the quality of mobile communication, indoor covering system is set up in each city in succession.No matter be optical fiber, or the indoor covering system of antenna system, ceiling mount antenna is the indispensable important component part of system.
Tradition indoor distributed system antenna only supports single channel, cannot support multichannel MIMO transmission; And existing network room subsystem exists the problem of TDS/TDL covering power deficiency, this problem is caused by following reason: TDS/TDL belongs to the high-frequency signal of more than 2GHz, and spatial loss is compared with the GSM signal height 8dB of 900M; The antenna pattern of conventional chamber divided antenna is mainly for 900M frequency range optimal design, signal evenly spreads to surrounding, after access 2000M is with the signal of super band, although high-frequency gain is larger, but master gain direction is stronger towards terrestrial surface radiation, signal is poor to surrounding diffusion, and a large amount of signal energies is wasted in region immediately below antenna.The vertical plane radiation performance of traditional antenna TDS/TDL high-frequency signal, reaches 6.5dBi in the directive gain with ceiling 45 ° of angles; But with ceiling angle 15 ° of directions, antenna gain declines rapidly-1.8dBi, and beyond causing antenna radius 4 meters, region overlay quality declines fast.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of novel LTE dual polarization compartment antenna, be applicable to TDS/TDL system, can use in 800MHz ~ 2700MHz frequency range, can compatible CDMA, GSM, DCS, PCS, TDS, TDL, the various communication system such as WLAN, and in whole design frequency range, the covering power of novel room divided antenna is basically identical, thus make up the space attenuation of high-frequency signal and the unbalanced problem of covering of traditional antenna, promote the covering performance of TD-LTE, simplify the processing technology of oscillator, greatly reduce the production cost of antenna, there is high-gain, broadband, structure is simple, the characteristic such as cheap, perfection can apply to 2G/3G/4G mobile communication system.
The present invention adopts following scheme to realize: a kind of novel LTE dual polarization compartment antenna, comprises a reflecting plate, one first radiating doublet and one second radiating doublet; The first described radiating doublet is by one first fixed leg, one first holding screw and one first alignment pin on described reflecting plate, and the second described radiating doublet schedules on the opposite side of described reflecting plate by one second fixed leg, one second holding screw and one second alignment pin; Distributing point is equipped with, in order to be connected with feeder cable bottom the first described radiating doublet and the second described radiating doublet; Described first radiating doublet and the described independent feed of the second radiating doublet, export in order to form dual polarization dual-port.
Further, the metal shell of described reflecting plate to be hollow be cone dish, described reflecting plate top is a plane.
Further, described first radiating doublet and the second described radiating doublet are the thin plate of crescent shape, and the moon point of described crescent shape thin plate near reflecting plate side is provided with the distributing point be connected with feeder cable.
Further, described first radiating doublet and the second described radiating doublet are metal radiation body
Further, described first radiating doublet and the second described radiating doublet are the metal object be attached on dielectric-slab, as printed substrate etc.
Further, described first radiating doublet and the second radiating doublet and described reflecting plate have one 45 ° of inclinations angle, and the first described radiating doublet is contrary with the second radiating doublet incline direction, in 90 ° of right-angled intersections;
Further, described room divided antenna is LTE bipolar omni-directional ceiling antenna.
Further, described first fixed leg and the second fixed leg are plastic column, and described first fixed leg and the second fixed leg two ends are equipped with position, hole, and the end thereof contacts face wherein contacted with radiating doublet is at 45 °.
Further, the first described fixed leg and the second fixed leg schedule on described reflecting plate respectively by one first holding screw and one second holding screw, and described first holding screw and the second holding screw are metallic object.
Further, the first described radiating doublet and the second radiating doublet are fixed on the first described fixed leg and the second fixed leg by one first alignment pin and one second alignment pin, described first alignment pin and described second alignment pin be T-shaped plastics screw.
Preferably, radiating doublet is fixed on fixed leg by the mode of hot melt by described T-shaped plastics screw.
Compared with prior art, the present invention has following outstanding advantages:
1, broadband, frequency can support 800MHz ~ 2700MHz; Can the various communication system such as perfect compatible CDMA, GSM, DCS, PCS, TDS, TDL, WLAN;
2, the independent feed of each unit and application, disturb little;
3, signal stabilization, gain high (Gain:> 3dBi), standing wave little (VSWR < 1.25);
4, make up the space attenuation of high-frequency signal and the unbalanced problem of covering of traditional antenna, promote the covering performance of TD-LTE,
5, structure simple, assemble simple and easy, cheap;
6, wideband, one-object-many-purposes is really realized, the object economized on resources.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is profile of the present utility model.
primary clustering symbol description]
1 is distributing point for reflecting plate, 2 be the first radiating doublet, 3 be the second radiating doublet, 4 be the first fixed leg, 5 be the first holding screw, 6 be the first alignment pin, 7 be the second alignment pin, 8 be the second holding screw, 9 is the second fixed leg, 10.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As depicted in figs. 1 and 2, the present embodiment provides a kind of novel LTE dual polarization compartment antenna, comprises reflecting plate 1,1 first radiating doublet 2 and one second radiating doublet 3; The first described radiating doublet 2 is fixed on described reflecting plate 1 by one first fixed leg 4,1 first holding screw 5 and one first alignment pin 6, and the second described radiating doublet 3 is fixed on the opposite side of described reflecting plate 1 by one second fixed leg 9,1 second holding screw 8 and one second alignment pin 7; Distributing point 10 is equipped with, in order to be connected with feeder cable bottom the first described radiating doublet 2 and the second described radiating doublet 3; Described first radiating doublet 2 and the second described radiating doublet 3 feed separately, exports in order to form dual polarization dual-port.
In the present embodiment, described reflecting plate 1 for hollow be the metal shell of cone dish, described reflecting plate top is a plane.
In the present embodiment, described first radiating doublet 2 and the second described radiating doublet 3 are the thin plate of crescent shape, and the moon point of described crescent shape thin plate near reflecting plate side is provided with distributing point.
In the present embodiment, the metal object that described first radiating doublet 2 and the second described radiating doublet 3 are metal radiation body or are attached on dielectric-slab, as printed substrate etc.
In the present embodiment, described first radiating doublet 2 and the second radiating doublet 3 have one 45 ° of inclinations angle with described reflecting plate, and the first described radiating doublet is contrary with the second radiating doublet incline direction, in 90 ° of right-angled intersections.
In the present embodiment, described room divided antenna is LTE bipolar omni-directional ceiling antenna.
In the present embodiment, described fixed leg is plastic column, and described fixed leg two ends are equipped with position, hole, and the end thereof contacts face wherein contacted with radiating doublet is at 45 °.
In the present embodiment, the first described fixed leg and the second fixed leg schedule on described reflecting plate respectively by one first holding screw and one second holding screw, and described first holding screw and the second holding screw are metallic object.
In the present embodiment, the first described radiating doublet and the second radiating doublet are fixed on the first described fixed leg and the second fixed leg by one first alignment pin and one second alignment pin, described first alignment pin and described second alignment pin be T-shaped plastics screw.Preferably, radiating doublet is fixed on fixed leg by the mode of hot melt by described T-shaped plastics screw.
In order to better the present embodiment is described, be next further elaborated.
First, in order to obtain the endless conductor surface of coaxial line, introduce reflecting plate concept, i.e. reflecting plate 1; Described first radiating doublet 2, second radiating doublet 3 forms the waveguide transmission line of endless with reflecting plate 1 respectively.
Secondly, in order to make up the space attenuation of high-frequency signal and cover unbalanced problem, promote the covering performance of TD-LTE, reflecting plate 1 is the metallic object in cone dish, reflecting plate 1 top is a burnishing surface or other irregular plane, cone dish inside is emptied, and regular or irregular plane is slightly larger than the distance of two distributing points.
Moreover in order to realize broadband properties, increased by radiating doublet wavelength, the first radiating doublet 2 and the second radiating doublet 3 are in " crescent shape ".
In addition, in order to obtain ± 45 ° of two polarization modes, the first radiating doublet 2 and the second radiating doublet 3 are tilted 45 ° to be arranged on reflecting plate 1; First radiating doublet 2 is vertical in 90 ° of right-angled intersections with the second radiating doublet 3 interleaved, the independent feed of each radiating doublet, the bottom of distributing point is arranged on respectively " crescent shape " the first radiating doublet 2 and the second radiating doublet 3, forms dual polarization dual-port and exports.
Finally, feed and the application separately of described first radiating doublet 2 and the second radiating doublet 3, by regulating size, the spacing of the first radiating doublet 2, second radiating doublet 3, all technical indicators of antenna (gain, directional diagram, standing wave etc.) can be made to control in technical requirement.
To these are only in the utility model embodiment a preferably embodiment.But the utility model is not limited to above-mentioned embodiment, all any equalizations done by the utility model scheme change and modify, and when the function produced does not exceed the scope of this programme, all belong to protection range of the present utility model.
Claims (10)
1. a novel LTE dual polarization compartment antenna, is characterized in that: comprise a reflecting plate, one first radiating doublet and one second radiating doublet; The first described radiating doublet is fixed on described reflecting plate by one first fixed leg, one first holding screw and one first alignment pin, and the second described radiating doublet is fixed on the opposite side of described reflecting plate by one second fixed leg, one second holding screw and one second alignment pin; Distributing point is equipped with, in order to be connected with feeder cable bottom the first described radiating doublet and the second described radiating doublet; Described first radiating doublet and the described independent feed of the second radiating doublet, export in order to form dual polarization dual-port.
2. the novel LTE dual polarization compartment antenna of one according to claim 1, is characterized in that: the metal shell of described reflecting plate to be hollow be cone dish, described reflecting plate top is a plane.
3. the novel LTE dual polarization compartment antenna of one according to claim 1, it is characterized in that: described first radiating doublet and the second described radiating doublet are the thin plate of crescent shape, the moon point of described crescent shape thin plate near reflecting plate side is provided with described distributing point.
4. the novel LTE dual polarization compartment antenna of one according to claim 1, is characterized in that: described first radiating doublet and the second described radiating doublet are metal radiation body.
5. the novel LTE dual polarization compartment antenna of one according to claim 1, is characterized in that: described first radiating doublet and the second described radiating doublet are the metal object be attached on dielectric-slab.
6. the novel LTE dual polarization compartment antenna of one according to claim 1, it is characterized in that: described first radiating doublet and the second radiating doublet and described reflecting plate have one 45 ° of inclinations angle, and the first described radiating doublet is contrary with the second radiating doublet incline direction, in 90 ° of right-angled intersections.
7. the novel LTE dual polarization compartment antenna of one according to claim 1, is characterized in that: described room divided antenna is LTE bipolar omni-directional ceiling antenna.
8. the novel LTE dual polarization compartment antenna of one according to claim 1, it is characterized in that: described first fixed leg and the second fixed leg are plastic column, described first fixed leg and the second fixed leg two ends are equipped with position, hole, and the end thereof contacts face wherein contacted with radiating doublet is at 45 °.
9. the novel LTE dual polarization compartment antenna of one according to claim 1, it is characterized in that: the first described fixed leg and the second fixed leg schedule on described reflecting plate respectively by one first holding screw and one second holding screw, and described first holding screw and the second holding screw are metallic object.
10. the novel LTE dual polarization compartment antenna of one according to claim 1, it is characterized in that: the first described radiating doublet and the second radiating doublet are fixed on the first described fixed leg and the second fixed leg by one first alignment pin and one second alignment pin, described first alignment pin and described second alignment pin be T-shaped plastics screw.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005796.XU CN204375957U (en) | 2015-01-06 | 2015-01-06 | A kind of novel LTE dual polarization compartment antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005796.XU CN204375957U (en) | 2015-01-06 | 2015-01-06 | A kind of novel LTE dual polarization compartment antenna |
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| CN204375957U true CN204375957U (en) | 2015-06-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466396A (en) * | 2015-01-06 | 2015-03-25 | 中邮科通信技术股份有限公司 | Novel LTE dual polarization indoor distribution antenna |
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2015
- 2015-01-06 CN CN201520005796.XU patent/CN204375957U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466396A (en) * | 2015-01-06 | 2015-03-25 | 中邮科通信技术股份有限公司 | Novel LTE dual polarization indoor distribution antenna |
| CN104466396B (en) * | 2015-01-06 | 2017-06-20 | 中邮科通信技术股份有限公司 | A kind of new LTE dual polarization compartment antennas |
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