CN202523848U - Ultrawide-band dual-polarized electrically-tunable antenna - Google Patents
Ultrawide-band dual-polarized electrically-tunable antenna Download PDFInfo
- Publication number
- CN202523848U CN202523848U CN 201220043724 CN201220043724U CN202523848U CN 202523848 U CN202523848 U CN 202523848U CN 201220043724 CN201220043724 CN 201220043724 CN 201220043724 U CN201220043724 U CN 201220043724U CN 202523848 U CN202523848 U CN 202523848U
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- Prior art keywords
- reflecting plate
- band dual
- dual polarization
- electrical tilt
- tilt antenna
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- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000010287 polarization Effects 0.000 claims description 24
- 230000009977 dual effect Effects 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 abstract description 7
- 238000005388 cross polarization Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model provides an ultrawide-band dual-polarized electrically-tunable antenna which comprises a reflecting plate, radiating units, a feeding network, a transmission device and a housing and further comprises a decoupling device. The decoupling device is clamped and fastened on the reflecting plate and located between two adjacent radiating units; the reflecting plate bent into a U shape, the radiating units are fixed at the bottom of the front surface of the reflecting plate; and the feeding network and the transmission device are fixed on two side plates on the back surface of the reflecting plate. Because the reflecting plate can be bent to effectively control the convergence of the beam width, the decoupling device can effectively improve the isolation and the cross polarization, and a shielding bottom plate can improve the front-to-back ratio, the ultrawide-band dual-polarized electrically-tunable antenna has the same electrical performance as the conventional base station antenna and has the advantages of simple structure and low cost.
Description
Technical field
The utility model relates to the antenna of mobile communication base station technical field, relates in particular to a kind of ultra band dual polarization electrical tilt antenna.
Background technology
Along with the fast development of mobile communication technology, the quantity of mobile communication subscriber is also in surge, and this causes the requirement of network signal capacity, antenna performance index etc. also in that when the river rises the boat goes up.Simultaneously, share in the site under the interests driving of policy and saving capital cost, multifrequency, broadband have changed into the important trend of antenna for base station development.
The working frequency range of the band dual polarization electrical tilt antenna that prior art provides is generally 1710-2170MHz, 1920-2690MHz or 1880-2690MHz.But the frequency range of LTE of new generation system has comprised above-mentioned three frequency ranges, is specially 1710-2690MHz.Therefore, market demands occurring a kind of ultra wideband (1710-2690MHz) dual polarization electrical tilt antenna urgently, and this antenna need have the performance that is equal to conventional antenna for base station, and is good like the beamwidth convergence, cross polarization than good, front and back than good or the like.
The utility model content
The purpose of the utility model is to provide a kind of ultra wideband (1710-2690MHz) dual polarization electrical tilt antenna, and this antenna has the performance that is equal to conventional antenna for base station, and is good like the beamwidth convergence, cross polarization than good, front and back than good or the like.。
The purpose of the utility model realizes through following technical scheme.
A kind of ultra band dual polarization electrical tilt antenna; Comprise: reflecting plate, radiating element, feeding network, transmission device and outer cover, also comprise isolator, said isolator is buckled on the said reflecting plate; And between the adjacent radiation unit; Said reflecting plate is bending U type, and its positive bottom is fixed with radiating element, is fixed with said feeding network and transmission device on two side plates at its back side.
Preferably, also be provided with shielded backplane between said transmission device top and the outer cover, it contacts with outer cover.
Preferably, the side plate bending angle of said reflecting plate is between 130-165 °, and the side plate width is between 0.15-0.35 wavelength of centre frequency.
Preferably, the overall width of said reflecting plate is between 0.85-1.15 wavelength of centre frequency.
Preferably, said isolator is made up of with supporting bonding jumper, and said bonding jumper is on the center line between the adjacent radiation unit, and height equates with radiating element.
Preferably, said support is provided with groove, and said bonding jumper is positioned over groove, and is buckled on the said reflecting plate through support arm.
Preferably, said bonding jumper cross section is circular, square or rhombus, and its cross sectional dimensions is between 1-6mm.
Preferably, said bonding jumper longitudinal section is arch or opening rectangle, and its length is between to the reflecting plate overall width 0.9 times of the radiating element length of side half the.
Preferably, when said bonding jumper longitudinal section is arch, the height of arch between the 0.1-0.5 of the length of arch doubly between.
Preferably, said isolator is made up of bonding jumper, and is directly electrically connected on the reflecting plate.
The utility model compared with prior art; Beneficial effect is: the ultra band dual polarization electrical tilt antenna that the utility model provides is because the effective convergence of control wave beam width of said reflecting plate bending; Isolator can effectively improve isolation and cross polarization; And shielded backplane can improve the front and back ratio, therefore has the electric property that is equal to conventional antenna for base station, simultaneously with advantage simple in structure, that cost is low.
Description of drawings
Fig. 1 is the bare machine front schematic view of the preferred embodiment that provides of the utility model;
Fig. 2 is the bare machine schematic rear view of the preferred embodiment that provides of the utility model;
Fig. 3 is the schematic side view of reflecting plate;
Fig. 4 is the schematic side view of arch bonding jumper;
Fig. 5 is the front elevational schematic of the support of arch bonding jumper;
Fig. 6 is the schematic side view of the support of arch bonding jumper;
Fig. 7 is the schematic side view of opening rectangular metal bar.
Embodiment
The utility model core concept: the isolation between the horizontal plane beamwidth convergence of ultra broadband dual polarized antenna and two polarization be the difficult point of design also be emphasis of design.After frequency range expands to 1710-2690MHz, than narrower frequency ranges such as 1710-2170MHz or 2300-2700MHz, the horizontal plane beamwidth still is constrained in 65 ± 5 ° of scopes, design difficulty will increase.In addition, the spacing between the UWB Antenna radiating element is generally 95-125mm, compares the common 130-140mm spacing of 3G antenna, and it is all the more serious that the mutual coupling between the radiating element becomes, and this causes two isolations between the polarization to become poorer.Therefore want to make ultra band dual polarization electrical tilt antenna to have the electric property that is equal to conventional antenna for base station, whether its design for scheme is proper just seems even more important.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 and 2 is depicted as a kind of preferred embodiment of said ultra band dual polarization electrical tilt antenna.It comprises reflecting plate 1, radiating element 2, arch bonding jumper 3, arch bonding jumper support 4, feeding network 5 and transmission device 6.Said radiating element 2 is through the hole of bottom, and one-to-two power divider 51 is screwed on the 11 front longitudinal central axis lines of the bottom of reflecting plate 1.In the front of reflecting plate 1, be provided with the very little arch bonding jumper of sectional dimension 3 between the adjacent radiation unit and support 4 with the arch bonding jumper, wherein the height of arch bonding jumper 3 arches between the 0.1-0.5 of the length of arch doubly between.One-to-two power divider 51 has been connected on the master network 53 of feeding network through coaxial cable 52.Wherein, coaxial cable 52 is fixed in the back side of reflecting plate 1, the gap location between one-to-two power divider 51 and the master network 53.Master network 53 and part transmission device are fixed in the back side of reflecting plate side plate 12.So just under the prerequisite of not widening the reflecting plate beam overall, increased the area at the reflecting plate back side, improved the reflecting plate utilization of space, reduced because the narrow influence of cable layout that the radiating element spacing reduces to cause.The plate 63 that is in transmission connection links together the phase shifter of independent distribution in master network through the hole on it 64, and then with adjusting rod 61, reflecting plate 13 connects.Last by the longitudinal sliding motion of pull bar 62 along reflecting plate 1, thus realize phase shift.The phase-shift theory of phase shifter is to realize through the coincidence area that changes between fixing circuit board and the U type shiftable haulage line plate, transmits energy with electric capacity close coupling mode between fixing circuit board and the shiftable haulage line plate.In addition, reveal, increasing shielded backplane above the transmission device and between the outer cover in the present embodiment, with ratio before and after improving for the energy that reduces reflecting plate back side pcb board.
Shown in Figure 3 is a kind of preferred embodiment of reflecting plate 1.Its cross section is bending U type, and side plate bending angle is between 130-165 °, and the side plate width is between 0.15-0.35 wavelength of centre frequency, and overall width is between 0.85-1.15 wavelength of centre frequency.Side plate through utilizing said reflecting plate bottom and both sides is to the electromagnetic wave amplitude on two polarised directions and the influence of phase place; Said antenna has obtained in the 1710-2690MHz frequency range; Beamwidth is constrained in 65 ± 5 ° of scopes, and front and back are than the premium properties greater than 25dB.The bottom 11 of reflecting plate 1; Side plate 12 all can be gone out arriving its surperficial reflection of electromagnetic wave; Make field that the stack of incident wave and reflected wave produces behind antenna to radiation diminish, antenna horizontal plane beamwidth is comparatively restrained, and then conveniently improves power system capacity, improves network overlapping effect.
Shown in Figure 4 is a kind of preferred embodiment of arch bonding jumper 3.Fig. 5 and 6 is depicted as a kind of preferred embodiment of the support 4 of arch bonding jumper.Arch bonding jumper 3 is positioned over and supports 4 groove 43 places, and arm 42 is buckled on the reflecting plate bottom 11.Arch bonding jumper 3 is as a kind of effective isolator, and its position is different, to antenna performance to influence nature also different, preferably on the center line between the radiating element, highly aboutly equate with radiating element.It can be through changing electromagnetic amplitude and the phase place on two polarised directions of dual polarized antenna; When especially antenna electronics has a down dip; Make the superimposed field on said two polarised directions change; The final mutual coupling that effectively reduces between two polarization is played and is improved isolation between antennas and cross-polarized effect.In addition because this isolator is axisymmetric about center of antenna, therefore can not cause radiating element in the horizontal direction or the CURRENT DISTRIBUTION on the vertical direction asymmetric, cause sacrificing antenna directivity.。Can make arch bonding jumper 3 not only can effectively improve isolation through supporting 4; Also can be through influencing the electromagnetic phase place and the amplitude of two polarization; Make the main shaft of antenna pattern all be improved, and do not influence the balance of radiating element electric current on horizontal plane and vertical plane direction with ± 60 ° of cross polarizations.Certainly, the arch bonding jumper also can be waited by opening rectangular metal bar shown in Figure 7 and replace, and its bonding jumper longitudinal section can be arch, opening rectangle shapes such as " ㄩ "; Its length is between to the reflecting plate overall width 0.9 times of the radiating element length of side half the, and its cross section be circle, and is square; Shapes such as rhombus; Its cross section full-size also can be directly electrically connected on the reflecting plate not by support between 1-6mm.
In sum; The utility model has been realized ultra wideband (1710-2690MHz) dual polarization electrical tilt antenna in smaller volume; Not only all obtained preferable performance on than, cross polarization and isolation index, and structurally had simple, processing easily, characteristics that cost is low at horizontal plane beamwidth, front and back.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (10)
1. ultra band dual polarization electrical tilt antenna; Comprise: reflecting plate, radiating element, feeding network, transmission device and outer cover is characterized in that: also comprise isolator, said isolator is buckled on the said reflecting plate; And between the adjacent radiation unit; Said reflecting plate is bending U type, and its positive bottom is fixed with radiating element, is fixed with said feeding network and transmission device on two side plates at its back side.
2. ultra band dual polarization electrical tilt antenna according to claim 1 is characterized in that: also be provided with shielded backplane between said transmission device top and the outer cover, it contacts with outer cover.
3. ultra band dual polarization electrical tilt antenna according to claim 1 and 2 is characterized in that: the side plate bending angle of said reflecting plate is between 130-165 °, and the side plate width is between 0.15-0.35 wavelength of centre frequency.
4. ultra band dual polarization electrical tilt antenna according to claim 1 and 2 is characterized in that: the overall width of said reflecting plate is between 0.85-1.15 wavelength of centre frequency.
5. ultra band dual polarization electrical tilt antenna according to claim 1 and 2 is characterized in that: said isolator is made up of with supporting bonding jumper, and said bonding jumper is on the center line between the adjacent radiation unit, and height equates with radiating element.
6. ultra band dual polarization electrical tilt antenna according to claim 5, it is characterized in that: said support is provided with groove, and said bonding jumper is positioned over groove, and is buckled on the said reflecting plate through support arm.
7. ultra band dual polarization electrical tilt antenna according to claim 5 is characterized in that: said bonding jumper cross section is circle, square or rhombus, and its cross sectional dimensions is between 1-6mm.
8. ultra band dual polarization electrical tilt antenna according to claim 5 is characterized in that: said bonding jumper longitudinal section is arch or opening rectangle, and its length is between to the reflecting plate overall width 0.9 times of the radiating element length of side half the.
9. ultra band dual polarization electrical tilt antenna according to claim 8 is characterized in that: when said bonding jumper longitudinal section is arch, the height of arch between the 0.1-0.5 of the length of arch doubly between.
10. ultra band dual polarization electrical tilt antenna according to claim 1, it is characterized in that: said isolator is made up of bonding jumper, and is directly electrically connected on the reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220043724 CN202523848U (en) | 2012-02-10 | 2012-02-10 | Ultrawide-band dual-polarized electrically-tunable antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220043724 CN202523848U (en) | 2012-02-10 | 2012-02-10 | Ultrawide-band dual-polarized electrically-tunable antenna |
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| Publication Number | Publication Date |
|---|---|
| CN202523848U true CN202523848U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220043724 Expired - Fee Related CN202523848U (en) | 2012-02-10 | 2012-02-10 | Ultrawide-band dual-polarized electrically-tunable antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457036A (en) * | 2013-08-30 | 2013-12-18 | 江苏华灿电讯股份有限公司 | Two-channel wideband antenna |
| CN103647138A (en) * | 2013-11-19 | 2014-03-19 | 广州杰赛科技股份有限公司 | Broadband dual-polarized antenna |
| CN103943970A (en) * | 2014-04-21 | 2014-07-23 | 广州博纬通信科技有限公司 | Dual-polarization broadband array antenna |
| CN104051848A (en) * | 2014-07-03 | 2014-09-17 | 广东健博通科技股份有限公司 | Intelligent vertical scanning antenna |
| CN105261829A (en) * | 2015-11-09 | 2016-01-20 | 中天宽带技术有限公司 | High front-to-back ratio dual polarization base station antenna |
| CN111542965A (en) * | 2017-12-26 | 2020-08-14 | 安弗施无线射频系统（上海）有限公司 | Arch structure for multiband base station antenna |
-
2012
- 2012-02-10 CN CN 201220043724 patent/CN202523848U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457036A (en) * | 2013-08-30 | 2013-12-18 | 江苏华灿电讯股份有限公司 | Two-channel wideband antenna |
| CN103457036B (en) * | 2013-08-30 | 2015-11-18 | 江苏华灿电讯股份有限公司 | A kind of Two-channel wideband antenna |
| CN103647138A (en) * | 2013-11-19 | 2014-03-19 | 广州杰赛科技股份有限公司 | Broadband dual-polarized antenna |
| CN103647138B (en) * | 2013-11-19 | 2016-08-17 | 广州杰赛科技股份有限公司 | Broadband dual polarized antenna |
| CN103943970A (en) * | 2014-04-21 | 2014-07-23 | 广州博纬通信科技有限公司 | Dual-polarization broadband array antenna |
| CN104051848A (en) * | 2014-07-03 | 2014-09-17 | 广东健博通科技股份有限公司 | Intelligent vertical scanning antenna |
| CN105261829A (en) * | 2015-11-09 | 2016-01-20 | 中天宽带技术有限公司 | High front-to-back ratio dual polarization base station antenna |
| CN105261829B (en) * | 2015-11-09 | 2018-06-12 | 中天宽带技术有限公司 | It is a kind of high front and rear to compare Bipolarization antenna for base station |
| CN111542965A (en) * | 2017-12-26 | 2020-08-14 | 安弗施无线射频系统（上海）有限公司 | Arch structure for multiband base station antenna |
| CN111542965B (en) * | 2017-12-26 | 2021-07-30 | 安弗施无线射频系统（上海）有限公司 | Arch structure for multiband base station antenna |
| US11283159B2 (en) | 2017-12-26 | 2022-03-22 | Nokia Shanghai Bell Co., Ltd. | Arch structure for multi-band base station 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20160210 |