CN205004448U - Wide band array antenna - Google Patents
Wide band array antenna Download PDFInfo
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- CN205004448U CN205004448U CN201520837728.XU CN201520837728U CN205004448U CN 205004448 U CN205004448 U CN 205004448U CN 201520837728 U CN201520837728 U CN 201520837728U CN 205004448 U CN205004448 U CN 205004448U
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Abstract
The utility model relates to a wide band section array antenna, including the metal reflecting plate, the radiating element array to and install the feed network on the metal reflecting plate, the radiating element array contains the subsystem of different frequency channels, and 5 oscillators of each subsystem horizontal direction link to each other with horizontal power distribution network. Wide band section array antenna has very fast beam convergence ability at the horizontal direction, and 3dB is less than 25 degrees to 20dB power reduction angle, and the side lobe level restraines and is superior to 20dB. The array antenna structure is nimble, can require nimble dispose interval and range phase place isoparametric according to practical application. Adopt the utility model discloses a structure, the neighbour district that can reduce hot spot regions such as venue disturbs, realizes adjacent district frequency reuse, improves the network capaciy. The utility model discloses 2G among the compatible mobile communication of array antenna, 3G and the multiple standard of 4G LTE not only can reduce the used antenna figure in basic station, reduce cloth station cost, also can reduce operation maintenance cost.
Description
Technical field
The utility model relates to the communications field, is specifically related to a kind of wideband array antenna.
Background technology
After the commercialization of forth generation mobile communication technology 4G/LTE scale, mobile Internet is fast-developing, smart mobile phone and panel computer more and more universal, the data traffic of mobile communication presents explosive growth.The hot spot region that mobile communication subscriber is intensive, comprise large-scale stadium, performing art centre, conference and exhibition center, high ferro station, terminal and Citizen Square etc., existing mobile communications network has been difficult to meet the real-time network traffic demand of high speed, and the technical schemes such as traditional increase carrier wave are also difficult to the network capacity issues solving high data traffic region.
Open venue people current density is large, and telephone traffic is high, and operational frequency resource is quite limited again, therefore needs to adopt a large amount of channelings to reach optimum capacity.In order to meet network capacity requirements, the more community of the Communication Highlights regional plannings such as large stadium covers.
Traditional solution uses the antenna that overlay area is circle to carry out multiple cell covering, and as shown in Figure 1,3dB to 20dB power drop angle is greater than 60 degree to directional diagram, declines slowly.Adopt the system of this antenna, overlapping region, neighbor cell is comparatively large, and interference is large, has a strong impact on the transmission rate of communication system, and the message capacity for system promotes limited.Thus be necessary, for above problem, to develop a kind of wide frequency antenna, under the prerequisite in ensuring coverage region, by the interference of the neighbor cell of beam converges reduction fast, improve the message capacity of the hot spot regions such as venue.
Utility model content
The purpose of this utility model is, overcomes the defect existed in prior art, provides a kind of wideband array antenna, its horizontal directivity pattern is rectangle figuration, with the adjacent area reducing the hot spot regions such as large stadium, overlapping and interference, realizes adjacent cell frequencies multiplexing, improves network capacity.
For achieving the above object, the utility model is by the following technical solutions:
A kind of wideband array antenna, comprises metallic reflection plate, is arranged on the feeding network on metallic reflection plate and radiation cell array;
Described radiation cell array comprises the subarray of at least one horizontal direction, and each subarray comprises multiple oscillator, arranges in the horizontal direction;
The horizontal radiation pattern of described wideband array antenna is rectangle, amplitude stabilization within the scope of main beam direction 3dB and have the crest of at least 2, and main beam scope declines fast with external power, and 3dB to 20dB power drop angle is less than 25 degree.
Further, the subarray of described horizontal direction arrangement is made up of 5 oscillators.
Further, multiple oscillators of described every a line subarray arrange along a horizontal reference line; Not overlapping between the reference line that each subarray described is corresponding.
Further, described horizontal direction subarray element spacing is equal.
Further, described multiple horizontal subarray vertically arranges, and the vertical interval of subarray is equal.
Further, described feeding network comprises horizontal power distribution network and divides with vertical merit and shift to network; Described subarray is connected with the output port of horizontal power distribution network, and the input port of horizontal power distribution network and vertical merit divide phase-shift network output port to be connected.
Further, oscillator horizontal-direction pitch is equal, is array level interval; The spacing of the vertical direction of oscillator is equal, is array vertical interval; Described array vertical interval is more than or equal to array level interval.
Further, described oscillator comprises the match circuit between radiation arm and connection radiation arm; Described match circuit is installed vertically on horizontal power distribution network; Described horizontal power distribution network is fixed on metallic reflection plate.
Further, described radiation cell array comprises 25 oscillators, and horizontal power distribution network and vertical merit divide phase-shift network to form a subsystem.
Further, the number of described subsystem is multiple, described subsystem work in low-frequency range, Mid Frequency and high band three kinds; Described low-frequency sub-system works in 698-960MHz band limits, and described Mid Frequency subsystem work is at 1710-2200MHz band limits, and described high band subsystem work is in 2300-2700MHz band limits.The subsystem of different frequency range carries out signal by mixer and closes road, with shared output port.
Adopt structure of the present utility model, wide-band array antenna can be kept in ultra wide band range to have beam converges ability faster, reduce the adjacent area interference of the hot spot regions such as venue, realize the channeling of neighbor cell, improve network capacity.2G in the utility model array antenna compatible mobile communication, 3G and 4GLTE multiple types, not only can reduce base station number of antennas used, reduces cloth station cost, also can reduce operation maintenance expense.Meanwhile, the utility model structure also can be used on the boundary line of exigent countries and regions, boundary line, overlay area, and high degree reduces the signal disturbing outside boundary line.
Accompanying drawing explanation
Fig. 1 is a kind of broad-band antenna array horizontal radiation pattern of the prior art;
Fig. 2 is the rectangle figuration horizontal plane radiation pattern of the broad-band antenna array that the utility model realizes;
The structural representation of a kind of one-segment array antenna that Fig. 3 provides for the utility model embodiment one;
Fig. 4 is the antenna pattern in the utility model embodiment one;
The structural representation of a kind of dual-band array antenna that Fig. 5 provides for the utility model embodiment two;
The structural representation of a kind of three frequency range array antennas that Fig. 6 provides for the utility model embodiment three;
The antenna pattern of a kind of array antenna that Fig. 7 provides for the utility model embodiment four.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.
Embodiment one
As shown in Figures 2 and 3, a kind of wide-band array antenna that the utility model embodiment provides, comprises metallic reflection plate, and is arranged on the horizontal power distribution network on metallic reflection plate, be fixed on the oscillator on horizontal power distribution network, and vertical merit divides phase-shift network.
Described radiation cell array comprises the subarray of at least one horizontal direction, and each subarray comprises multiple oscillator, arranges in the horizontal direction;
The horizontal radiation pattern of described wideband array antenna is rectangle, amplitude stabilization within the scope of main beam direction 3dB and have the crest of at least 2, and main beam scope declines fast with external power, and 3dB to 20dB power drop angle is less than 25 degree.
Preferably, described radiation cell array is made up of 25 dual polarization vibrators 101, and described 25 oscillators are divided into 5 subarrays, and each subarray comprises the oscillator that 5 are positioned at horizontal direction; 5 oscillators of described subarray arrange along a horizontal reference line, and oscillator level interval is d1; The center of described multiple subarray arranges along a vertical reference line, and vertical interval is d2.
5 oscillators of described subarray are connected with horizontal power distribution network 102, and form a sub antenna, each sub antenna and vertical merit divide phase-shift network 103 to be connected, and form a dual-polarized array antenna; Vertical power distribution network uses continuous phase regulating networks, can regulate the beam position of vertical direction.
Preferably, oscillator level interval is equal with vertical interval, i.e. d1=d2, and numerical value is the half wavelength of operating frequency; Preferably, vertical merit divides the distribution of the amplitude-phase of phase-shift network consistent with horizontal direction.The directional diagram of array antenna as shown in Figure 4.Namely vertical direction and horizontal direction antenna pattern close, in middle slight depression, both sides protuberance rectangle figuration shape.Described rectangle Oriented Graphics with Assigned Form has the crest of continuous 2 at main lobe direction, and direction amplitude declines very fast beyond main lobe.The centre frequency 3dB beamwidth of described subsystem is 50 degree, and 20dB beamwidth is 85 degree, and in whole band limits, the angle of 3dB to 20dB power drop is less than 25 degree, and Sidelobe Suppression is better than 20dB.
Embodiment two
As shown in Figure 5, the utility model embodiment changes on the basis of embodiment one.
The utility model embodiment provides a two-band rectangle shaped aerial being operated in 1710-2200 and 2300-2700MHz.111,112 and 113 be operated in 2300-2700MHz frequency range ± 45 dual polarization vibrator unit respectively, horizontal power distribution network, and vertical merit divides phase-shift network, composition 2300-2700MHz frequency range subsystem; Described oscillator is identical with embodiment one with the connection of feeding network; Described oscillator level interval is D1H, and vertical interval is D1V.211,212 and 213 be operated in 1710-2200MHz frequency range ± 45 dual polarization vibrator unit respectively, horizontal power distribution network, and vertical merit divides phase-shift network, composition 1710-2200MHz frequency range subsystem; Described oscillator is identical with embodiment one with the connection of feeding network; Described oscillator level interval is D2H, and vertical interval is D2V.
+ 45 polarized signal E1 of described 2300-2700MHz subsystem and+45 polarized signal E3 of 1710-2200MHz subsystem are connected to mixer 115, form the output port F1 shared; Similar ,-45 polarized signal E2 of described 2300-2700MHz subsystem and-45 polarized signal E4 of 1710-2200MHz subsystem are connected to another block mixer 115, form the output port F2 shared; Described mixer working frequency range is 1710-2200 and 2300-2700MHz.
Preferably, the level interval D1H of subsystem 2300-2700MHz equals vertical interval D1V, and the level interval D2H of subsystem 1710-2200MHz equals vertical interval D2V.
Preferably, D1H and D1V is two point of one wavelength of 2300-2700MHz frequency range centre frequency 2500MHz, D2H and D2V is two point of one wavelength of 1710-2200MHz frequency range centre frequency 1950MHz.Preferably, described 2300-2700MHz subsystem horizontal power distribution network and vertical merit divide the Phase amplitude-matched of phase-shift network; Described 1710-2200MHz subsystem horizontal power distribution network and vertical merit divide the Phase amplitude-matched of phase-shift network.Directional diagram and Fig. 4 of the whole frequency range of 2300-2700 and 1710-2200MHz of subsystem are similar, and the 3dB ripple of the centre frequency of each subsystem wide is 50 degree, and 20dB beamwidth is 85 degree.3dB to 20dB power drop angle in described each subsystem frequency range is less than 25 degree, and Sidelobe Suppression is better than 20dB.
Other features in the utility model embodiment are identical with embodiment one, therefore do not repeat them here.
Embodiment three
As shown in Figure 6, the utility model embodiment provides a kind of three frequency range array antennas.
116 dual-band antennas being embodiment two in figure, working frequency range is respectively 1710-2200 and 2300-2700MHz.311,312 and 313 are operated in 698-960MHz frequency range ± 45 dual polarization vibrator, and horizontal power distribution network and vertical merit divide phase shifter network.Described dual polarization vibrator is identical with embodiment one with the connection of feeding network; Described oscillator level interval is D3H, and vertical interval is D3V.+ 45 polarized signal F3 of described 698-960MHz subsystem and+45 polarized signal F1 of 1710-2200/2300-2700MHz two-band system are connected to mixer 107, form the output port G1 shared; Similar ,-45 polarized signal F4 of described 698-960MHz subsystem and-45 polarized signal F2 of 1710-2200/2300-2700MHz two-band system are connected to another block mixer 107, form the output port G2 shared; Described mixer 107 working frequency range is 698-960 and 1700-2700MHz.
Preferably, D3H and D3V is two point of one wavelength of the centre frequency 790MHz of 698-960MHz frequency range.
Preferably, described 698-960MHz subsystem horizontal power distribution network and vertical merit divide the Phase amplitude-matched of phase-shift network.Three subsystem 698-960 of the present embodiment, directional diagram and Fig. 4 of the whole frequency range of 1710-2200 and 2300-2700MHz are similar, and the 3dB ripple of the centre frequency of each subsystem wide is 50 degree, and 20dB beamwidth is 85 degree.3dB to 20dB power drop angle in described each subsystem frequency range is less than 25 degree, and Sidelobe Suppression is better than 20dB.
Other features in the utility model embodiment are identical with embodiment one, therefore do not repeat them here.
Embodiment four
The present embodiment realizes directional diagram as shown in Figure 7, and horizontal plane is rectangular orientation figure figuration, and vertical plane is the wave beam forming of conventional aerial.The connection of the present embodiment is identical with embodiment one; Adopt the amplitude-phase distribution power division network with rectangle figuration unlike, horizontal plane with embodiment one, the merit of vertical plane divides the width Entropy density deviation of phase-shift network then similar with conventional basestation antennas, and main beam direction only has a crest.This embodiment is applicable to the extra high macro base station of cell boarder requirement, and the movable signal on the boundary line such as between country covers.Similar with embodiment three, different frequency range subsystem subregion arrangement can be adopted, to realize the quorum sensing inhibitor to 4G/3G/2G different communication standard.
Preferably, the subsystem of the different frequency range of the present embodiment does not use mixer to carry out signal and closes road.
It is emphasized that in above 4 embodiments, in each subsystem array, the spacing between adjacent two oscillators of horizontal direction is fixing, and namely oscillator unit is equidistantly arrangement.But in practical engineering application, oscillator unit also can be unequal-interval arrangement.Same, the spacing between two oscillators in vertical direction also can be unequal-interval arrangement.In an embodiment, the center of every a line oscillator is along a vertical line arrangement, and in actual applications, often the center of row oscillator also can be left and right skew.Same, in an embodiment, the center of each row oscillator is that in actual applications, often the center of row oscillator also can be downward shift along a horizontal linear arrangement.The spacing of this oscillator changes staggered situation, also can realize the optimization with rectangle Oriented Graphics with Assigned Form, owing to not departing from design of the present utility model, also within protection range of the present utility model.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a wideband array antenna, is characterized in that: comprise metallic reflection plate, is arranged on the feeding network on metallic reflection plate and radiation cell array;
Described radiation cell array comprises the subarray of at least one horizontal direction, and each subarray comprises multiple oscillator, arranges in the horizontal direction;
The horizontal radiation pattern of described wideband array antenna is rectangle, amplitude stabilization within the scope of main beam direction 3dB and have the crest of at least 2, and main beam scope declines fast with external power, and 3dB to 20dB power drop angle is less than 25 degree.
2. wideband array antenna according to claim 1, is characterized in that: the subarray of described horizontal direction arrangement is made up of 5 oscillators.
3. wideband array antenna according to claim 1, is characterized in that: multiple oscillators of described every a line subarray arrange along a horizontal reference line; Not overlapping between the reference line that each subarray described is corresponding.
4. wideband array antenna according to claim 1, is characterized in that: described horizontal direction subarray element spacing is equal.
5. wideband array antenna according to claim 1, is characterized in that: described multiple horizontal subarray vertically arranges, and the vertical interval of subarray is equal.
6. wideband array antenna according to claim 1, is characterized in that: described feeding network comprises horizontal power distribution network and divides with vertical merit and shift to network; Described subarray is connected with the output port of horizontal power distribution network, and the input port of horizontal power distribution network and vertical merit divide phase-shift network output port to be connected.
7. wideband array antenna according to claim 1, is characterized in that: oscillator horizontal-direction pitch is equal, is array level interval; The spacing of the vertical direction of oscillator is equal, is array vertical interval; Described array vertical interval is more than or equal to array level interval.
8. wideband array antenna according to claim 2, is characterized in that: the match circuit that described oscillator comprises radiation arm and connects between radiation arm; Described match circuit is installed vertically on horizontal power distribution network; Described horizontal power distribution network is fixed on metallic reflection plate.
9. wideband array antenna according to claim 6, is characterized in that: described radiation cell array comprises 25 oscillators, and horizontal power distribution network and vertical merit divide phase-shift network to form a subsystem.
10. wideband array antenna according to claim 9, is characterized in that: the number of described subsystem is multiple, described subsystem work in low-frequency range, Mid Frequency and high band three kinds; Described low-frequency sub-system works in 698 ~ 960MHz band limits, described Mid Frequency subsystem work is at 1710-2200MHz band limits, described high band subsystem work is in 2300 ~ 2700MHz band limits, the subsystem of different frequency range carries out signal by mixer and closes road, with shared output port.
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| CN201520837728.XU CN205004448U (en) | 2015-10-23 | 2015-10-23 | Wide band array antenna |
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| CN201520837728.XU CN205004448U (en) | 2015-10-23 | 2015-10-23 | Wide band array antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105356062A (en) * | 2015-10-23 | 2016-02-24 | 广东博纬通信科技有限公司 | Broadband array antenna |
| CN107732465A (en) * | 2017-09-15 | 2018-02-23 | 北京空间飞行器总体设计部 | A kind of Dual-band dual-polarization quickly falls rectangle transmission distance antenna |
| CN108134216A (en) * | 2017-12-29 | 2018-06-08 | 广东博纬通信科技有限公司 | A kind of aerial array of analog beam figuration |
| CN108183321A (en) * | 2017-12-20 | 2018-06-19 | 南京理工大学 | A kind of passive antenna array of two-dimensional beam figuration |
| CN109921839A (en) * | 2018-11-30 | 2019-06-21 | 航天科工空间工程发展有限公司 | A kind of beam-hopping communication system frequency multiplexing method |
| CN110165380A (en) * | 2019-06-05 | 2019-08-23 | 中天宽带技术有限公司 | A kind of antenna for base station that multifrequency is shared |
| CN114336091A (en) * | 2022-01-18 | 2022-04-12 | 新疆讯通网络工程有限公司 | Multi-system antenna device |
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2015
- 2015-10-23 CN CN201520837728.XU patent/CN205004448U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356062A (en) * | 2015-10-23 | 2016-02-24 | 广东博纬通信科技有限公司 | Broadband array antenna |
| CN107732465A (en) * | 2017-09-15 | 2018-02-23 | 北京空间飞行器总体设计部 | A kind of Dual-band dual-polarization quickly falls rectangle transmission distance antenna |
| CN107732465B (en) * | 2017-09-15 | 2020-04-21 | 北京空间飞行器总体设计部 | Dual-band dual-polarization fast drop rectangular shaped array antenna |
| CN108183321A (en) * | 2017-12-20 | 2018-06-19 | 南京理工大学 | A kind of passive antenna array of two-dimensional beam figuration |
| CN108134216A (en) * | 2017-12-29 | 2018-06-08 | 广东博纬通信科技有限公司 | A kind of aerial array of analog beam figuration |
| CN108134216B (en) * | 2017-12-29 | 2024-02-06 | 广东博纬通信科技有限公司 | Antenna array simulating beam forming |
| CN109921839A (en) * | 2018-11-30 | 2019-06-21 | 航天科工空间工程发展有限公司 | A kind of beam-hopping communication system frequency multiplexing method |
| CN109921839B (en) * | 2018-11-30 | 2021-04-20 | 航天科工空间工程发展有限公司 | Frequency reuse method of hopping beam communication system |
| CN110165380A (en) * | 2019-06-05 | 2019-08-23 | 中天宽带技术有限公司 | A kind of antenna for base station that multifrequency is shared |
| CN114336091A (en) * | 2022-01-18 | 2022-04-12 | 新疆讯通网络工程有限公司 | Multi-system antenna device |
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