CN103560335A - Multi-band array antenna - Google Patents
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- CN103560335A CN103560335A CN201310513377.2A CN201310513377A CN103560335A CN 103560335 A CN103560335 A CN 103560335A CN 201310513377 A CN201310513377 A CN 201310513377A CN 103560335 A CN103560335 A CN 103560335A
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Abstract
The invention relates to a multi-band array antenna. The multi-band array antenna comprises a metal reflecting plate, low-frequency radiating elements and high-frequency radiating elements, wherein the low-frequency radiating elements and the high-frequency radiating elements are all installed on the metal reflecting plate, the low-frequency radiating elements operate at a low frequency band, and the high-frequency radiating elements operate at a high frequency band; the low-frequency radiating elements and the high-frequency radiating elements are arranged on the metal reflecting plate in a nested mode, and the orthographic projection of the low-frequency radiating elements does not coincide with that of the high-frequency radiating elements. Each low-frequency radiating element is composed of a horizontal oscillator and a pair of vertical oscillators connected with a power divider feed network. The low-frequency radiating elements are flexible in structure, and the distance and other parameters can be flexibly configured according to actual use requirements. By the adoption of the structure of the multi-band array antenna, circuits and networks are low in loss so that the radiation characteristic of the multi-band array antenna can be kept stable within the range of an ultra-wide band; besides, the multi-band array antenna is compatible with various service patterns including 2G, 3G and 4G LTE, as a result, the number of antennae used in a base station can be decreased, station distribution cost is reduced, and operation and maintenance cost also can be reduced.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of multiband array antenna.
Background technology
Nowadays, 2G, 3G and be about to universal 4G LTE network and deposit, the system of a plurality of use different frequency ranges exists simultaneously, needs to use the antenna for base station that can be operated in different frequency range.Use common narrow band antenna, many slave antennas just need to be arranged in a base station, have increased system complexity and property cost.In order to reduce networking cost, the broadband and miniaturization of antenna has become one of current focus.
For the multiple communication standard of compatibility, dual-band dual-polarized antenna is used on a large scale.Traditional dual-band antenna adopts high frequency radiation unit to follow the low frequency radiation unit structure of (Side by Side) arranged side by side shoulder to shoulder more, and a kind of broad-band antenna unit that the Australian patent application that publication number is AU2011201657A1 proposes is exactly this form.As shown in Figure 1, its oscillator is positioned at square cavity inside, ring-type tuning circuit and half-wave dipole or paster, consists of.Adopt the dual-band antenna cross section of the radiating element group battle array of this structure can be larger, be unfavorable for realizing the miniaturization of antenna.
In order to reduce the front face area of antenna, high frequency radiation unit and low frequency radiation unit adopt for most of developers by coaxial the arranging of the mode of inlaying.Publication number is a kind of multifrequency array antenna that the Chinese patent application of CN101425626A proposes, and adopts in this way.But, in order to weaken between low-and high-frequency radiating element, be coupled, its spacing can not be too little, causes the front face area of dual-band antenna still very large.
In addition, antenna of the prior art is operated in 790-960MHz and 1710-2690MHz frequency range mostly, is difficult to expand to 700MHz frequency range, is difficult to meet the application demand of 700MHz LTE.Thereby be necessary for above problem, develop and a kind ofly the working band of dual-band antenna can be widened to 700MHz frequency range, the ultra broadband multiband aerial of compact conformation.
Summary of the invention
The object of the invention is to, overcome the defect existing in prior art, provide a kind of multiband array antenna that can cover the compact conformation of 698-960MHz and 1710-2690MHz ultrabroad band, with all frequency ranges of the current mobile communications network of compatibility.
For achieving the above object, the present invention is by the following technical solutions:
An array antenna, comprises metallic reflection plate, and is arranged on working in compared with the low frequency radiation unit of low-frequency range and the high frequency radiation unit that works in higher frequency band on metallic reflection plate;
Described low frequency radiation unit comprises mutually orthogonal horizontal dipole and vertical dipole, and described horizontal dipole is connected with power splitter feeding network with vertical dipole, produces ± 45 degree polarization far-field radiation directional diagrams; Wherein, described vertical dipole has two, and described two vertical dipoles respectively symmetry are arranged on the right and left on horizontal dipole; Arrange along one or more axis being parallel to each other at the center of a plurality of low frequency radiations unit, forms row or multiple row low frequency array; In each row low frequency array, the horizontal dipole of described a plurality of low frequency radiations unit is perpendicular to described axis, the vertical dipole that is positioned at the left side on described a plurality of low frequency radiations unit is all distributed on the first reference line, and the vertical dipole that is positioned at the right on described a plurality of low frequency radiations unit is all distributed on the second reference line; Described the first reference line and the second reference line all parallel to the axis, and not with dead in line;
Described high frequency radiation unit comprises two mutually orthogonal oscillators; Between first reference line and the second reference line of each row low frequency array, a plurality of high frequency radiations unit is arranged in row or multiple row HF array along the direction paralleling to the axis; And described high frequency radiation unit and the first reference line and the second reference line do not have overlapping.
Preferably, the orthographic projection on metallic reflection plate of described low frequency radiation unit and high frequency radiation unit does not overlap mutually.
Preferably, in each row low frequency array, arrange along axis at the center of a plurality of high frequency radiations unit, forms a row HF array.
Preferably, described the first reference line and the second reference line lay respectively at axis both sides, and symmetrical about axis.
Preferably, in each row HF array, the spacing of adjacent high frequency radiation unit has two kinds: the spacing of a plurality of high frequency radiations unit between adjacent two low frequency radiation unit equates, is the first spacing; The spacing of adjacent high frequency radiation unit that lays respectively at the horizontal dipole both sides of same low frequency radiation unit is the second spacing; Described the second spacing is more than or equal to the first spacing.
Preferably, in low frequency radiation unit, horizontal dipole comprises two radiation arms that are symmetrically distributed on same straight line and is connected in two match circuits between radiation arm; Vertical dipole also comprises two radiation arms that are symmetrically distributed on same straight line and is connected in two match circuits between radiation arm; Described two vertical dipoles are vertically mounted on respectively on two radiation arms of horizontal dipole, on the radiation arm that is centered close to horizontal dipole of vertical dipole; The match circuit at right angle setting of horizontal dipole and vertical dipole is on metallic reflection plate; The radiation arm of horizontal dipole and vertical dipole is all parallel to metallic reflection plate.
Preferably, in same low frequency radiation unit, the radiation arm of horizontal dipole is identical apart from the height of metallic reflection plate with the radiation arm of vertical dipole.
Preferably, described low frequency radiation cell operation is in 698～960MHz band limits, and described high frequency radiation cell operation is in 1710～2690MHz band limits.
Preferably, in every row HF array, the high frequency radiation unit between adjacent two low frequency radiation unit has more than 2.
Preferably, row or multiple row HF array are subordinated to same radio frequency system; Or a plurality of high frequency radiations unit in a row HF array is subordinated to a plurality of separate radio frequency systems.
Preferably, in same low frequency radiation unit, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed opposite direction of the vertical dipole of adjacent low frequency radiation unit, the feed direction of the horizontal dipole of adjacent low frequency radiation unit is identical.
Preferably, in same low frequency radiation unit, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed direction of the vertical dipole of adjacent low frequency radiation unit is identical, the feed opposite direction of the horizontal dipole of adjacent low frequency radiation unit.
Preferably, described power splitter feeding network comprises the one 2 road power splitter and the 22 road power splitter of mutual cascade; The first delivery outlet of described the one 2 road power splitter is connected with the horizontal dipole of a low frequency radiation unit, and the second delivery outlet of the one 2 road power splitter is connected with the input port of the 22 road power splitter; The first delivery outlet of the 22 road power splitter and the second delivery outlet are connected respectively on two vertical dipoles of the low frequency radiation unit adjacent with this low frequency radiation unit.
Preferably, the bearing of trend of the bearing of trend of two of high frequency radiation unit oscillators and the horizontal dipole of low frequency radiation unit is 45 degree angles.
A kind of multiband array antenna provided by the invention, low frequency radiation unit and the mutually nested arrangement on metallic reflection plate of high frequency radiation unit, both do not overlap mutually in the orthographic projection on metallic reflection plate, have at utmost reduced the electrical Interference between low-and high-frequency signal; Its compact conformation and arrangement mode are flexible, can utilize a plurality of separate radio frequency systems and low frequency to realize the covering to a plurality of different frequency ranges, and then effectively realize on the whole the covering to 698-960MHz and 1710-2690MHz ultrabroad band, with all frequency ranges of the current mobile communications network of compatibility.
Adopt structure of the present invention, circuit network loss is little, can keep the radiation characteristic of multiband array antenna in ultra wide band range stable, and the 2G in compatible mobile communication, 3G and 4G LTE multiple types, not only can reduce base station number of antennas used, reduce cloth station cost, also can reduce operation maintenance expense.
Accompanying drawing explanation
Fig. 1 is a kind of broad-band antenna of the prior art unit.
The partial structurtes schematic diagram of a kind of dual-band array antenna that Fig. 2 provides for the embodiment of the present invention one.
Fig. 3 is the structural representation of the power splitter feeding network in the embodiment of the present invention one.
The overall structure schematic diagram of a kind of dual-band array antenna that Fig. 4 provides for the embodiment of the present invention one.
The overall structure schematic diagram of a kind of 3 frequency range array antennas that Fig. 5 provides for the embodiment of the present invention two.
The structural representation of a kind of 4 frequency range array antennas that Fig. 6 provides for the embodiment of the present invention three.
The structural representation of a kind of 6 frequency range array antennas that Fig. 7 provides for the embodiment of the present invention four.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is elaborated.
Embodiment mono-
As shown in Figures 2 to 4, the dual-band array antenna of a kind of compact conformation that the embodiment of the present invention provides, comprise metallic reflection plate, and be arranged on working in compared with the low frequency radiation unit of low-frequency range 1 and the high frequency radiation unit 2 that works in higher frequency band on metallic reflection plate.Preferably, described low frequency radiation unit 1 works in 698～960MHz band limits, and described high frequency radiation unit 2 works in 1710～2690MHz band limits.
Described low frequency radiation unit 1 comprises mutually orthogonal horizontal dipole 101 and vertical dipole 102, and described horizontal dipole 101 is connected with power splitter feeding network with vertical dipole 102, produces ± 45 degree polarization far-field radiation directional diagrams.Wherein, described vertical dipole 102 has two, and symmetry is arranged on the right and left part on horizontal dipole 101 respectively.Equidistantly arrange along an axis at the center of a plurality of low frequency radiations unit 1 (being the mid point of horizontal dipole 101), forms a row low frequency array; Wherein, the horizontal dipole 101 of described a plurality of low frequency radiations unit 1 is perpendicular to described axis, the vertical dipole 102 that is positioned at the left side on described a plurality of low frequency radiations unit 1 is all distributed on the first reference line, and the vertical dipole 102 that is positioned at the right on described a plurality of low frequency radiations unit 1 is all distributed on the second reference line; Described the first reference line and the second reference line all parallel to the axis, and not with dead in line.In the embodiment of the present invention, described the first reference line and the second reference line lay respectively at axis both sides, and symmetrical about axis.It should be noted that, described horizontal dipole 101 and vertical dipole 102 are only the distinctiveness names of carrying out in conjunction with the present embodiment direction shown in the drawings, can not represent in actual three dimensions, and oscillator is level or vertical.
Described high frequency radiation unit 2 comprises two mutually orthogonal oscillators, and the bearing of trend of the bearing of trend of two oscillators of high frequency radiation unit 2 and the horizontal dipole 101 of low frequency radiation unit 1 is 45 degree angles; Between first reference line and the second reference line of described low frequency array, arrange along the direction paralleling to the axis at the center of a plurality of high frequency radiations unit 2, forms row or multiple row HF array; And described high frequency radiation unit 2 and the first reference line and the second reference line do not have overlapping.Be that a plurality of high frequency radiations unit 2 between adjacent two low frequency radiation unit 1 is positioned at the coffin that the horizontal dipole 101 of the first reference line, the second reference line and two low frequency radiation unit 1 surrounds.In the embodiment of the present invention, arrange along axis at the center of a plurality of high frequency radiations unit 2, forms a row HF array, and low frequency radiation unit 1 and high frequency radiation unit 2 form coaxial cramped construction.
In each row HF array, the spacing of adjacent high frequency radiation unit 2 has two kinds: the spacing of a plurality of high frequency radiations unit 2 between adjacent two low frequency radiation unit 1 equates, is the first spacing d1; The spacing of adjacent high frequency radiation unit 2 that lays respectively at horizontal dipole 101 both sides of same low frequency radiation unit 1 is the second spacing d2.Described the second spacing d2 is slightly larger than the first spacing d1, and the distance between low frequency radiation unit 1 and high frequency radiation unit 2 is pulled open as far as possible.
Shown in Fig. 2, in the embodiment of the present invention, between every adjacent two low frequency radiation unit 1, be distributed with 2 high frequency radiation unit 2.Spacing between these 2 high frequency radiation unit 2 is the first spacing d1, and spacing between the high frequency radiation unit 2, two of 101 both sides of horizontal dipole of same low frequency radiation unit 1 is the second spacing d2.Pass between the space D of adjacent low frequency radiation unit 1 and the first spacing d1 and the second spacing d2 is: D=d1+d2.Under such layout, the orthographic projection on metallic reflection plate of low frequency radiation unit 1 and high frequency radiation unit 2 does not overlap mutually, and the maintenance of the distance between low frequency radiation unit 1 and high frequency radiation unit 2 is maximum, has effectively reduced electrical Interference between the two.
In low frequency radiation unit 1, horizontal dipole 101 comprises two radiation arms that are symmetrically distributed on same straight line and is connected in two match circuits between radiation arm; Vertical dipole 102 also comprises two radiation arms that are symmetrically distributed on same straight line and is connected in two match circuits between radiation arm.Described two vertical dipoles 102 are arranged on respectively on two radiation arms of horizontal dipole 101, and perpendicular to the radiation arm of horizontal dipole 101, on the radiation arm that is centered close to horizontal dipole 101 of vertical dipole 102.The match circuit at right angle setting of the match circuit of horizontal dipole 101 and vertical dipole 102 is on metallic reflection plate.The radiation arm of horizontal dipole 101 and vertical dipole 102 is all parallel to metallic reflection plate.
In the embodiment of the present invention, the radiation arm of horizontal dipole 101 is identical apart from the height of metallic reflection plate with the radiation arm of vertical dipole 102, vertical dipole 102 center overlaps with the radiation arm of horizontal dipole 101, and two vertical dipoles 102 are symmetrical being installed on two radiation arms of horizontal dipole 101 respectively, and two of horizontal dipole 101 radiation arms become diesis shape to arrange with the radiation arm of two vertical dipoles 102.
Preferably, in the embodiment of the present invention, the length of described horizontal dipole 101 is greater than the half wavelength (180mm) that low frequency radiation unit 1 covers band limits centre frequency, and the length of vertical dipole 102 is slightly less than 1/2nd wavelength that low frequency radiation unit 1 covers band limits centre frequency.
Described power splitter feeding network can be outside also can be integrated in antenna inside, and in the embodiment of the present invention, described power splitter feeding network is integrated in antenna inside.The structural representation of the power splitter feeding network being connected with vertical dipole 102 for the horizontal dipole 101 of embodiment of the present invention medium and low frequency radiating element 1 as shown in Figure 3.Described power splitter feeding network comprises the one 2 road power splitter and the 22 road power splitter of mutual cascade; The network that described the one 2 road power splitter and the 22 road power splitter are one-in-and-two-out, is operated in 698～960MHz frequency range.Wherein, the first delivery outlet 302 of described the one 2 road power splitter is connected with the horizontal dipole 101 of a low frequency radiation unit 1, and the second delivery outlet 303 of the one 2 road power splitter is connected with the input port of the 22 road power splitter; The first delivery outlet 304 of the 22 road power splitter and the second delivery outlet 305 are connected respectively on two vertical dipoles 102 of the low frequency radiation unit 1 adjacent with this low frequency radiation unit 1.
Especially, owing to having adopted in embodiments of the present invention 2 road power splitters of cascade as feeding network, for realizing described ± 45 polarization characteristics, the horizontal dipole 101 of described low frequency radiation unit 1 and vertical dipole 102 need be arranged according to certain feed direction.Particularly, in same low frequency radiation unit 1, the feed direction of two vertical dipoles 102 is identical; In same row low frequency array, the feed opposite direction of the vertical dipole 102 of adjacent low frequency radiation unit 1, the feed direction of the horizontal dipole 101 of adjacent low frequency radiation unit 1 is identical.As shown in Figure 2 and Figure 4, in figure, use symbol "+" and " ﹣ " to represent the feed direction of oscillator.
Except above-mentioned method for arranging, the embodiment of the present invention can also adopt another kind of method for arranging.Particularly, in same low frequency radiation unit 1, the feed direction of two vertical dipoles 102 is identical; In same row low frequency array, the feed direction of the vertical dipole 102 of adjacent low frequency radiation unit 1 is identical, the feed opposite direction of the horizontal dipole 101 of adjacent low frequency radiation unit 1.
Generally speaking, vertical dipole 102 feed opposite directions and the horizontal dipole 101 feed directions of adjacent low frequency radiation unit 1 are identical, or, the identical and horizontal dipole 101 feed opposite directions of the vertical dipole 102 feed directions of adjacent low frequency radiation unit 1.
In embodiments of the present invention, all high frequency radiations unit 2 in a described permutation HF array is subordinated to same radio frequency system.As shown in Figure 4, figure center choosing part is radio frequency system, covers 1710～2690MHz frequency range; Add a plurality of coaxial low frequency radiation unit 1 and form low frequency system, cover 698～960MHz frequency range; 1 low frequency system and 1 dual-band array antenna that radio frequency system coexists have been formed.
Embodiment bis-
As shown in Figure 5, the embodiment of the present invention changes on the basis of embodiment mono-, and a kind of 3 frequency range array antennas are provided.Particularly, a plurality of high frequency radiations unit 2 in the permutation HF array in the embodiment of the present invention is subordinated to respectively 2 separate radio frequency systems.In other words, in the embodiment of the present invention, have altogether 2 separate radio frequency systems, be respectively the part of two rectangle circle choosings in Fig. 5, described 2 radio frequency systems can work in different frequency range, also can work in similar frequency bands, and jointly cover 1710～2690MHz frequency range; Add the low frequency system that another one is coaxial, cover 698～960MHz frequency range; 1 low frequency system and 23 frequency range array antennas that radio frequency system coexists have been formed.
Other features in the embodiment of the present invention are identical with embodiment mono-, therefore do not repeat them here.
Embodiment tri-
As shown in Figure 6, the embodiment of the present invention provides a kind of 4 frequency range array antennas, comprises two row low frequency array and two row HF arrays.Described two row low frequency array are arranged and are formed along two axis that are parallel to each other respectively by a plurality of low frequency radiations unit 1; On the axis of each row low frequency array, be also arranged with a row HF array.Wherein, each row HF array is subordinated to respectively an independently radio frequency system, and as the part of two rectangle circle choosings in Fig. 6, described 2 radio frequency systems can work in different frequency range respectively, also can work in similar frequency bands, and jointly cover 1710～2690MHz frequency range; Each row low frequency array is also subordinated to respectively an independently low frequency system, and described 2 low frequency system can work in different frequency range, also can work in similar frequency bands, and jointly cover 698～960MHz frequency range; 2 low frequency system and 24 frequency range array antennas that radio frequency system coexists have been formed.
Other features in the embodiment of the present invention are identical with embodiment mono-, therefore do not repeat them here.
Embodiment tetra-
As shown in Figure 7, the embodiment of the present invention changes on the basis of embodiment tri-, a kind of 6 frequency range array antennas are provided, and particularly, a plurality of high frequency radiations unit 2 in each the row HF array in the embodiment of the present invention is subordinated to respectively 2 separate radio frequency systems.In other words, in the embodiment of the present invention, there are altogether 4 separate radio frequency systems, be respectively the part of four rectangle circle choosings in Fig. 7; Add other 2 low frequency system; 2 low frequency system and 46 frequency range array antennas that radio frequency system coexists have been formed.
Other features in the embodiment of the present invention are identical with embodiment mono-, therefore do not repeat them here.
It is pointed out that, in above four embodiment that provide, the high frequency radiation unit in each system and the number of low frequency radiation unit are technical solution of the present invention a kind of concrete selection in actual applications.According to practical engineering application demand, increase or reduce the number of high frequency radiation unit and low frequency radiation unit, still can realize described two-band, 3 frequency ranges, 4 frequency ranges or 6 band antenna arrays.Simultaneously, in above four embodiment, by reducing or increase wherein the quantity of row or multiple row HF array medium-high frequency system, and then two-band, 3 frequency ranges, 4 frequency ranges, 5 frequency ranges or other multiband array antennas of realizing other array formats be all fairly simple and easy thing, the occasion of its application is expanded in those skilled in the art's structural flexibility according to the present invention of having the ability.
It is emphasized that, in above four embodiment, HF array and low frequency array are preferably co-axial alignment, and the corresponding row HF array of each row low frequency array, in actual applications, between the first reference line of a row low frequency array and the second reference line, also can there is multiple row HF array.In addition; in above four embodiment; in every row HF array; the quantity of the high frequency radiation unit between adjacent two low frequency radiation unit is preferably 2; the high frequency radiation unit of other quantity, such as 3 or 4 the high frequency radiation unit of 5 and even greater number even, can realize and cover different High-frequency and low-frequency frequency ranges; owing to not departing from design of the present invention, also within protection range of the present invention.
It is emphasized that especially in above four embodiment, in every row HF array, the high frequency radiation number of unit between adjacent two low frequency radiation unit is fixed, and low frequency radiation unit is equidistantly to arrange.Yet in practical engineering application, each low frequency radiation unit can be also that unequal-interval is arranged, in this case, the number of the high frequency radiation unit between adjacent two low frequency radiation unit is unfixed.Such as; between first pair of adjacent low frequency radiation unit, there are 2 high frequency radiation unit; between second pair of adjacent low frequency radiation unit, there are 3 high frequency radiation unit; the spacing of this low frequency radiation unit changes staggered situation; also can realize the optimization of low-and high-frequency coverage; owing to not departing from design of the present invention, also within protection scope of the present invention.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (14)
1. a multiband array antenna, is characterized in that, comprises metallic reflection plate, and is arranged on working in compared with the low frequency radiation unit of low-frequency range and the high frequency radiation unit that works in higher frequency band on metallic reflection plate;
Described low frequency radiation unit comprises mutually orthogonal horizontal dipole and vertical dipole, and described horizontal dipole is connected with power splitter feeding network with vertical dipole, produces ± 45 degree polarization far-field radiation directional diagrams; Wherein, described vertical dipole has two, and described two vertical dipoles respectively symmetry are arranged on the right and left on horizontal dipole; Arrange along one or more axis being parallel to each other at the center of a plurality of low frequency radiations unit, forms row or multiple row low frequency array; In each row low frequency array, the horizontal dipole of described a plurality of low frequency radiations unit is perpendicular to described axis, the vertical dipole that is positioned at the left side on described a plurality of low frequency radiations unit is all distributed on the first reference line, and the vertical dipole that is positioned at the right on described a plurality of low frequency radiations unit is all distributed on the second reference line; Described the first reference line and the second reference line all parallel to the axis, and not with dead in line;
Described high frequency radiation unit comprises two mutually orthogonal oscillators; Between first reference line and the second reference line of each row low frequency array, a plurality of high frequency radiations unit is arranged in row or multiple row HF array along the direction paralleling to the axis; And described high frequency radiation unit and the first reference line and the second reference line do not have overlapping.
2. multiband array antenna according to claim 1, is characterized in that, the orthographic projection on metallic reflection plate of described low frequency radiation unit and high frequency radiation unit does not overlap mutually.
3. multiband array antenna according to claim 1, is characterized in that, in each row low frequency array, arrange along axis at the center of a plurality of high frequency radiations unit, forms a row HF array.
4. multiband array antenna according to claim 1, is characterized in that, described the first reference line and the second reference line lay respectively at axis both sides, and symmetrical about axis.
5. multiband array antenna according to claim 1, it is characterized in that, in each row HF array, the spacing of adjacent high frequency radiation unit has two kinds: the spacing of a plurality of high frequency radiations unit between adjacent two low frequency radiation unit equates, is the first spacing; The spacing of adjacent high frequency radiation unit that lays respectively at the horizontal dipole both sides of same low frequency radiation unit is the second spacing; Described the second spacing is more than or equal to the first spacing.
6. multiband array antenna according to claim 1, is characterized in that, in low frequency radiation unit, horizontal dipole comprises two radiation arms that are symmetrically distributed on same straight line and is connected in two match circuits between radiation arm; Vertical dipole also comprises two radiation arms that are symmetrically distributed on same straight line and is connected in two match circuits between radiation arm; Described two vertical dipoles are vertically mounted on respectively on two radiation arms of horizontal dipole, on the radiation arm that is centered close to horizontal dipole of vertical dipole; The match circuit at right angle setting of horizontal dipole and vertical dipole is on metallic reflection plate; The radiation arm of horizontal dipole and vertical dipole is all parallel to metallic reflection plate.
7. multiband array antenna according to claim 6, is characterized in that, in same low frequency radiation unit, the radiation arm of horizontal dipole is identical apart from the height of metallic reflection plate with the radiation arm of vertical dipole.
8. multiband array antenna according to claim 1, is characterized in that, described low frequency radiation cell operation is in 698～960MHz band limits, and described high frequency radiation cell operation is in 1710～2690MHz band limits.
9. multiband array antenna according to claim 1, is characterized in that, in every row HF array, the high frequency radiation unit between adjacent two low frequency radiation unit has more than 2.
10. multiband array antenna according to claim 1, is characterized in that, row or multiple row HF array are subordinated to same radio frequency system; Or a plurality of high frequency radiations unit in a row HF array is subordinated to a plurality of separate radio frequency systems.
11. multiband array antennas according to claim 1, is characterized in that, in same low frequency radiation unit, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed opposite direction of the vertical dipole of adjacent low frequency radiation unit, the feed direction of the horizontal dipole of adjacent low frequency radiation unit is identical.
12. multiband array antennas according to claim 1, is characterized in that, in same low frequency radiation unit, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed direction of the vertical dipole of adjacent low frequency radiation unit is identical, the feed opposite direction of the horizontal dipole of adjacent low frequency radiation unit.
13. multiband array antennas according to claim 1, is characterized in that, described power splitter feeding network comprises the one 2 road power splitter and the 22 road power splitter of mutual cascade; The first delivery outlet of described the one 2 road power splitter is connected with the horizontal dipole of a low frequency radiation unit, and the second delivery outlet of the one 2 road power splitter is connected with the input port of the 22 road power splitter; The first delivery outlet of the 22 road power splitter and the second delivery outlet are connected respectively on two vertical dipoles of the low frequency radiation unit adjacent with this low frequency radiation unit.
The multiband array antenna of 14. compact conformations according to claim 1, is characterized in that, the bearing of trend of the bearing of trend of two oscillators of high frequency radiation unit and the horizontal dipole of low frequency radiation unit is 45 degree angles.
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| CN107425265A (en) * | 2017-08-01 | 2017-12-01 | 华南理工大学 | A kind of narrow beam antenna |
| CN107959127A (en) * | 2017-11-13 | 2018-04-24 | 中山香山微波科技有限公司 | Radio freqency simulation system and its spherical array Anneta module |
| CN110546813A (en) * | 2017-03-06 | 2019-12-06 | 约翰·梅扎林瓜联合股份有限公司 | Stealth arrangement for low profile telecommunications antenna |
| CN110620292A (en) * | 2019-09-17 | 2019-12-27 | 卞国荣 | VHF circular polarization transmitting antenna |
| US11043752B2 (en) | 2016-07-29 | 2021-06-22 | John Mezzalingua Associates, LLC | Low profile telecommunications antenna |
| CN113273032A (en) * | 2018-10-05 | 2021-08-17 | 康普技术有限责任公司 | Reconfigurable multi-band base station antenna with independent sub-modules |
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| CN102403572A (en) * | 2011-12-13 | 2012-04-04 | 华南理工大学 | Wideband double frequency mobile communication base station antenna |
| CN102832455A (en) * | 2012-08-31 | 2012-12-19 | 华为技术有限公司 | Antenna array and antenna device |
| CN102868017A (en) * | 2012-08-31 | 2013-01-09 | 广东通宇通讯股份有限公司 | Radiation device and array antenna based on same |
| CN203631740U (en) * | 2013-10-25 | 2014-06-04 | 广东博纬通信科技有限公司 | Multi-band array antenna |
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| US11804662B2 (en) | 2016-07-29 | 2023-10-31 | John Mezzalingua Associates, LLC | Low profile telecommunications antenna |
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| CN110546813B (en) * | 2017-03-06 | 2021-07-13 | 约翰·梅扎林瓜联合股份有限公司 | Stealth arrangement for low profile telecommunications antenna |
| CN107425265A (en) * | 2017-08-01 | 2017-12-01 | 华南理工大学 | A kind of narrow beam antenna |
| CN107959127A (en) * | 2017-11-13 | 2018-04-24 | 中山香山微波科技有限公司 | Radio freqency simulation system and its spherical array Anneta module |
| CN113273032A (en) * | 2018-10-05 | 2021-08-17 | 康普技术有限责任公司 | Reconfigurable multi-band base station antenna with independent sub-modules |
| CN110620292A (en) * | 2019-09-17 | 2019-12-27 | 卞国荣 | VHF circular polarization transmitting antenna |
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