CN103560335B - Multi-band array antenna - Google Patents
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- CN103560335B CN103560335B CN201310513377.2A CN201310513377A CN103560335B CN 103560335 B CN103560335 B CN 103560335B CN 201310513377 A CN201310513377 A CN 201310513377A CN 103560335 B CN103560335 B CN 103560335B
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Abstract
The present invention relates to a kind of multi-band array antenna, comprise metallic reflection plate, and be arranged on metallic reflection plate work in compared with low-frequency range low frequency radiating element and work in the high frequency radiating element of higher frequency band; Described low frequency radiating element and high frequency radiating element nesting arrangement on metallic reflection plate, and both orthographic projections do not overlap mutually.Described low frequency radiating element is connected power splitter feeding network by horizontal dipole with a pair vertical dipole and forms.Described low frequency radiating element flexible structure, can the parameter such as flexible configuration spacing based on the actual application requirements.Adopt structure of the present invention, circuit network loss is little, the radiation characteristic of multi-band array antenna in ultra wide band range can be kept to stablize, 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.<pb pnum="1" />
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of multi-band array antenna.
Background technology
Nowadays, 2G, 3G and be about to universal 4G LTE network and deposit, the system of multiple use different frequency range exists simultaneously, needs to use the antenna for base station that can be operated in different frequency range.Use common narrow band antenna, a base station just needs to arrange many slave antennas, adds system complexity and property cost.In order to reduce networking cost, antenna broadband and miniaturizedly become one of current focus.
In order to the multiple communication standard of compatibility, dual-band dual-polarized antenna is used on a large scale.Traditional dual-band antenna many employings high frequency radiating element is with the structure of low frequency radiating element side by side (Side by Side) shoulder to shoulder, and publication number is a kind of broad-band antenna unit that the Australian patent application of AU2011201657A1 proposes is exactly this form.As shown in Figure 1, its oscillator is positioned at square cavity inside, is made up of ring-type tuning circuit and half-wave dipole or paster.Adopt the dual-band antenna cross section of the radiating element group battle array of this structure can be larger, be unfavorable for the miniaturization realizing antenna.
In order to reduce the front face area of antenna, high frequency radiating element and low frequency radiating element are that most of developer adopts by the coaxial arrangement of mode of inlaying.Publication number is a kind of multi-frequency array antenna that the Chinese patent application of CN101425626A proposes, and namely adopts in this way.But, be coupled to weaken between low-and high-frequency radiating element, 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 the application demand meeting 700MHz LTE.Thus be necessary for above problem, develop and a kind ofly the working band of dual-band antenna can be widened 700MHz frequency range, the ultra wideband multi-band section antenna of compact conformation.
Summary of the invention
The object of the invention is to, overcome the defect existed in prior art, a kind of multi-band array antenna that can cover the compact conformation of 698-960MHz and 1710-2690MHz ultrabroad band is provided, 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:
A kind of multi-band array antenna, comprises metallic reflection plate, and be arranged on metallic reflection plate work in compared with low-frequency range low frequency radiating element and work in the high frequency radiating element of higher frequency band;
Described low frequency radiating element 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 of polarization far field radiation pattern; Wherein, described vertical dipole has two, and described two vertical dipoles are symmetrical the right and left be arranged on horizontal dipole respectively; The center of multiple low frequency radiating element arranges along one or more axis be parallel to each other, and forms row or a multiple row low frequency array; In each row low frequency array, the horizontal dipole of described multiple low frequency radiating element is perpendicular to described axis, the vertical dipole described multiple low frequency radiating element being positioned at the left side is all distributed on the first reference line, and the vertical dipole described multiple low frequency radiating element being positioned at the right is all distributed on the second reference line; Described first reference line and the second reference line all parallel to the axis, and not with dead in line;
Described high frequency radiating element comprises two mutually orthogonal oscillators; Between first reference line of each row low frequency array and the second reference line, multiple high frequency radiating element is arranged in row or multiple row HF array along the direction of paralleling to the axis; And described high frequency radiating element and the first reference line and the second reference line not overlapping.
Preferably, described low frequency radiating element and the orthographic projection of high frequency radiating element on metallic reflection plate do not overlap mutually.
Preferably, in each row low frequency array, the center of multiple high frequency radiating element arranges along axis, forms a row HF array.
Preferably, described first reference line and the second reference line lay respectively at axis both sides, and symmetric about the axis.
Preferably, in each row HF array, the spacing of adjacent high frequency radiating element has two kinds: the spacing of the multiple high frequency radiating element between adjacent two low frequency radiating element is equal, is the first spacing; The spacing laying respectively at the adjacent high frequency radiating element of the horizontal dipole both sides of same low frequency radiating element is the second spacing; Described second spacing is more than or equal to the first spacing.
Preferably, in low frequency radiating element, horizontal dipole comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Vertical dipole also comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Described two vertical dipoles are vertically mounted on two radiation arms of horizontal dipole respectively, vertical dipole be centrally located on the radiation arm of horizontal dipole; The match circuit of horizontal dipole and vertical dipole is installed vertically 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 radiating element, the radiation arm of horizontal dipole is identical with the height of the radiation arm distance metallic reflection plate of vertical dipole.
Preferably, described low frequency radiating element works in 698 ~ 960MHz band limits, and described high frequency radiating element works in 1710 ~ 2690MHz band limits.
Preferably, often in row HF array, the high frequency radiating element between adjacent two low frequency radiating element has more than 2.
Preferably, row or multiple row HF array are subordinated to same radio frequency system; Or the multiple high frequency radiating element in a row HF array are subordinated to multiple separate radio frequency system.
Preferably, in same low frequency radiating element, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed direction of the vertical dipole of neighboring low radiating element is contrary, and the feed direction of the horizontal dipole of neighboring low radiating element is identical.
Preferably, in same low frequency radiating element, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed direction of the vertical dipole of neighboring low radiating element is identical, and the feed direction of the horizontal dipole of neighboring low radiating element is contrary.
Preferably, described power splitter feeding network comprises the one 2 road power splitter and the 22 road power splitter of mutual cascade; First delivery outlet of described one 2 road power splitter is connected with the horizontal dipole of a low frequency radiating element, and the second delivery outlet of the one 2 road power splitter is connected with the input port of the 22 road power splitter; 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 radiating element adjacent with this low frequency radiating element.
Preferably, the bearing of trend of two oscillators of high frequency radiating element and the bearing of trend of the horizontal dipole of low frequency radiating element are 45 degree of angles.
A kind of multi-band array antenna provided by the invention, the mutually nested arrangement on metallic reflection plate of low frequency radiating element and high frequency radiating element, both do not overlap mutually in orthographic projection on metallic reflection plate, at utmost reduce the electrical Interference between low-and high-frequency signal; Its compact conformation and arrangement mode is flexible, multiple separate radio frequency system and the covering of low frequency realization to multiple different frequency range can be utilized, and then the covering effectively realized on the whole 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, the radiation characteristic of multi-band array antenna in ultra wide band range can be kept to stablize, 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 unit of the prior art.
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 described in detail.
Embodiment one
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 metallic reflection plate work in compared with low-frequency range low frequency radiating element 1 and work in the high frequency radiating element 2 of higher frequency band.Preferably, described low frequency radiating element 1 works in 698 ~ 960MHz band limits, and described high frequency radiating element 2 works in 1710 ~ 2690MHz band limits.
Described low frequency radiating element 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 of polarization far field radiation pattern.Wherein, described vertical dipole 102 has two, respectively the symmetrical the right and left part be arranged on horizontal dipole 101.The center (i.e. the mid point of horizontal dipole 101) of multiple low frequency radiating element 1 equidistantly arranges along an axis, forms a row low frequency array; Wherein, the horizontal dipole 101 of described multiple low frequency radiating element 1 is perpendicular to described axis, the vertical dipole 102 described multiple low frequency radiating element 1 being positioned at the left side is all distributed on the first reference line, and the vertical dipole 102 described multiple low frequency radiating element 1 being positioned at the right is all distributed on the second reference line; Described 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 first reference line and the second reference line lay respectively at axis both sides, and symmetric about the axis.It should be noted that, described horizontal dipole 101 and vertical dipole 102 are only the distinctiveness names carried out in conjunction with the present embodiment direction shown in the drawings, and can not represent in the three dimensions of reality, oscillator is level or vertical.
Described high frequency radiating element 2 comprises two mutually orthogonal oscillators, and the bearing of trend of the bearing of trend of two oscillators of high frequency radiating element 2 and the horizontal dipole 101 of low frequency radiating element 1 is 45 degree of angles; Between first reference line and the second reference line of described low frequency array, the center of multiple high frequency radiating element 2, along the direction arrangement of paralleling to the axis, forms row or a multiple row HF array; Further, described high frequency radiating element 2 and the first reference line and the second reference line not overlapping.Namely the coffin that the horizontal dipole 101 that the multiple high frequency radiating element 2 between adjacent two low frequency radiating element 1 are positioned at the first reference line, the second reference line and two low frequency radiating element 1 surrounds.In the embodiment of the present invention, the center of multiple high frequency radiating element 2 arranges along axis, forms a row HF array, and namely low frequency radiating element 1 and high frequency radiating element 2 form coaxial cramped construction.
In each row HF array, the spacing of adjacent high frequency radiating element 2 has two kinds: the spacing of the multiple high frequency radiating element 2 between adjacent two low frequency radiating element 1 is equal, is the first spacing d1; The spacing laying respectively at the adjacent high frequency radiating element 2 of horizontal dipole 101 both sides of same low frequency radiating element 1 is the second spacing d2.Described second spacing d2, slightly larger than the first spacing d1, makes the distance between low frequency radiating element 1 and high frequency radiating element 2 pull open as far as possible.
Shown in composition graphs 2, in the embodiment of the present invention, be often distributed with 2 high frequency radiating element 2 between adjacent two low frequency radiating element 1.Spacing between these 2 high frequency radiating element 2 is the first spacing d1, and the spacing between two, the horizontal dipole 101 both sides high frequency radiating element 2 of same low frequency radiating element 1 is the second spacing d2.The space D of neighboring low radiating element 1 and the pass between the first spacing d1 and the second spacing d2 are: D=d1+d2.Under such layout, low frequency radiating element 1 and the orthographic projection of high frequency radiating element 2 on metallic reflection plate do not overlap mutually, and the distance between low frequency radiating element 1 and high frequency radiating element 2 keeps maximum, significantly reduces electrical Interference between the two.
In low frequency radiating element 1, horizontal dipole 101 comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Vertical dipole 102 also comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms.Described two vertical dipoles 102 are arranged on two radiation arms of horizontal dipole 101 respectively, and perpendicular to the radiation arm of horizontal dipole 101, on the radiation arm being centrally located at horizontal dipole 101 of vertical dipole 102.The match circuit of horizontal dipole 101 and the match circuit of vertical dipole 102 are installed vertically 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 with the height of the radiation arm distance metallic reflection plate of vertical dipole 102, the center of vertical dipole 102 overlaps with the radiation arm of horizontal dipole 101, and two vertical dipoles 102 are symmetrical is respectively installed on two radiation arms of horizontal dipole 101, namely two radiation arms of horizontal dipole 101 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 radiating element 1 covers band limits centre frequency, and the length of vertical dipole 102 is slightly less than 1/2nd wavelength that low frequency radiating element 1 covers band limits centre frequency.
Described power splitter feeding network can be outside also can be integrated in inner antenna, and in the embodiment of the present invention, described power splitter feeding network is integrated in inner antenna.As shown in Figure 3, the structural representation of the power splitter feeding network be connected with vertical dipole 102 for the horizontal dipole 101 of embodiment of the present invention medium and low frequency radiating element 1.Described power splitter feeding network comprises the one 2 road power splitter and the 22 road power splitter of mutual cascade; Described one 2 road power splitter and the 22 road power splitter are the network of one-in-and-two-out, are operated in 698 ~ 960MHz frequency range.Wherein, the first delivery outlet 302 of described one 2 road power splitter is connected with the horizontal dipole 101 of a low frequency radiating element 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; 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 radiating element 1 adjacent with this low frequency radiating element 1.
Especially, owing to have employed 2 road power splitters of cascade in embodiments of the present invention as feeding network, for realizing described ± 45 polarization characteristics, the horizontal dipole 101 of described low frequency radiating element 1 and vertical dipole 102 need be arranged according to certain feed direction.Particularly, in same low frequency radiating element 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 neighboring low radiating element 1 is contrary, and the feed direction of the horizontal dipole 101 of neighboring low radiating element 1 is identical.As shown in Figure 2 and Figure 4, symbol "+" and " ﹣ " is used to illustrate the feed direction of oscillator in figure.
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 radiating element 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 neighboring low radiating element 1 is identical, and the feed direction of the horizontal dipole 101 of neighboring low radiating element 1 is contrary.
Generally speaking, the vertical dipole 102 feed direction of neighboring low radiating element 1 is contrary and horizontal dipole 101 feed direction is identical, or the vertical dipole 102 feed direction of neighboring low radiating element 1 is identical and horizontal dipole 101 feed direction is contrary.
In embodiments of the present invention, all high frequency radiating element 2 in a described permutation HF array are 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 multiple coaxial low frequency radiating element 1 and form low frequency system, cover 698 ~ 960MHz frequency range; Constitute the dual-band array antenna that 1 low frequency system and 1 radio frequency system coexist.
Embodiment two
As shown in Figure 5, the embodiment of the present invention changes on the basis of embodiment one, provides a kind of 3 frequency range array antennas.Particularly, the multiple high frequency radiating element 2 in the permutation HF array in the embodiment of the present invention are subordinated to 2 separate radio frequency systems respectively.In other words, have 2 separate radio frequency systems in the embodiment of the present invention altogether, be respectively the part of two rectangle circles 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; Constitute the 3 frequency range array antennas that 1 low frequency system and 2 radio frequency systems coexist.
Other features in the embodiment of the present invention are identical with embodiment one, therefore do not repeat them here.
Embodiment three
As shown in Figure 6, embodiments provide a kind of 4 frequency range array antennas, comprise two row low frequency array and two row HF arrays.Described two row low frequency array are arranged along two axis be parallel to each other respectively by multiple low frequency radiating element 1 and are formed; The axis of each row low frequency array is also arranged with a row HF array.Wherein, each row HF array is subordinated to an independently radio frequency system respectively, and respectively as the part of two rectangle circle choosings in Fig. 6, 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; Each row low frequency array is also subordinated to an independently low frequency system respectively, 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; Constitute the 4 frequency range array antennas that 2 low frequency system and 2 radio frequency systems coexist.
Other features in the embodiment of the present invention are identical with embodiment one, therefore do not repeat them here.
Embodiment four
As shown in Figure 7, the embodiment of the present invention changes on the basis of embodiment three, provide a kind of 6 frequency range array antennas, particularly, the multiple high frequency radiating element 2 in each the row HF array in the embodiment of the present invention are subordinated to 2 separate radio frequency systems respectively.In other words, there are in the embodiment of the present invention 4 separate radio frequency systems altogether, be respectively the part of four rectangle circle choosings in Fig. 7; Add other 2 low frequency system; Constitute the 6 frequency range array antennas that 2 low frequency system and 4 radio frequency systems coexist.
Other features in the embodiment of the present invention are identical with embodiment one, therefore do not repeat them here.
It is pointed out that, in above four embodiments provided, the high frequency radiating element in each system and the number of low frequency radiating element are that technical solution of the present invention one in actual applications is specifically selected.According to practical engineering application demand, increase or reduce the number of high frequency radiating element and low frequency radiating element, still can realize described two-band, 3 frequency ranges, 4 frequency ranges or 6 band antenna arrays.Simultaneously, in above four embodiments, by reducing or increase the quantity of wherein row or multiple row HF array medium-high frequency system, and then to realize the two-band of other array formats, 3 frequency ranges, 4 frequency ranges, 5 frequency ranges or other multi-band array antenna be all fairly simple and easy thing, those skilled in the art has the ability to expand according to the structural flexibility of the present invention the occasion of its application.
It is emphasized that, in above four embodiments, 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, also multiple row HF array can be had between the first reference line of a row low frequency array and the second reference line.In addition; in above four embodiments; often in row HF array; the quantity of the high frequency radiating element between adjacent two low frequency radiating element is preferably 2; the high frequency radiating element of other quantity, such as 3 or 4 the even high frequency radiating element of 5 and even greater number, can realize covering different High-frequency and low-frequency frequency ranges; owing to not departing from design of the present invention, also within scope.
It is emphasized that in above four embodiments especially, often in row HF array, the high frequency radiating element number between adjacent two low frequency radiating element is fixing, and namely low frequency radiating element is equidistantly arrangement.But in practical engineering application, each low frequency radiating element also can be unequal-interval arrangement, and in this case, the number of the high frequency radiating element between adjacent two low frequency radiating element is then unfixed.Such as; 2 high frequency radiating element are had between first pair of neighboring low radiating element; 3 high frequency radiating element are had between second pair of neighboring low radiating element; the spacing of this low frequency radiating element changes staggered situation; also the optimization of low-and high-frequency coverage can be realized; owing to not departing from design of the present invention, also within protection scope of the present invention.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not 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 (24)
1. a multi-band array antenna, is characterized in that, comprises metallic reflection plate, and be arranged on metallic reflection plate work in compared with low-frequency range low frequency radiating element and work in the high frequency radiating element of higher frequency band;
Described low frequency radiating element 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 of polarization far field radiation pattern; Wherein, described vertical dipole has two, and described two vertical dipoles are symmetrical the right and left be arranged on horizontal dipole respectively; The center of multiple low frequency radiating element arranges along one or more axis be parallel to each other, and forms row or a multiple row low frequency array; In each row low frequency array, the horizontal dipole of described multiple low frequency radiating element is perpendicular to described axis, the vertical dipole described multiple low frequency radiating element being positioned at the left side is all distributed on the first reference line, and the vertical dipole described multiple low frequency radiating element being positioned at the right is all distributed on the second reference line; Described first reference line and the second reference line all parallel to the axis, and not with dead in line;
Described high frequency radiating element comprises two mutually orthogonal oscillators; Between first reference line of each row low frequency array and the second reference line, multiple high frequency radiating element is arranged in row or multiple row HF array along the direction of paralleling to the axis; And described high frequency radiating element and the first reference line and the second reference line not overlapping;
In same low frequency radiating element, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed direction of the vertical dipole of neighboring low radiating element is contrary, and the feed direction of the horizontal dipole of neighboring low radiating element is identical.
2. multi-band array antenna according to claim 1, is characterized in that, described low frequency radiating element and the orthographic projection of high frequency radiating element on metallic reflection plate do not overlap mutually.
3. multi-band array antenna according to claim 1, is characterized in that, in each row low frequency array, the center of multiple low frequency radiating element arranges along axis, forms a row HF array.
4. multi-band array antenna according to claim 1, is characterized in that, described first reference line and the second reference line lay respectively at axis both sides, and symmetric about the axis.
5. multi-band array antenna according to claim 1, it is characterized in that, in each row HF array, the spacing of adjacent high frequency radiating element has two kinds: the spacing of the multiple high frequency radiating element between adjacent two low frequency radiating element is equal, is the first spacing; The spacing laying respectively at the adjacent high frequency radiating element of the horizontal dipole both sides of same low frequency radiating element is the second spacing; Described second spacing is more than or equal to the first spacing.
6. multi-band array antenna according to claim 1, is characterized in that, in low frequency radiating element, horizontal dipole comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Vertical dipole also comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Described two vertical dipoles are vertically mounted on two radiation arms of horizontal dipole respectively, vertical dipole be centrally located on the radiation arm of horizontal dipole; The match circuit of horizontal dipole and vertical dipole is installed vertically on metallic reflection plate; The radiation arm of horizontal dipole and vertical dipole is all parallel to metallic reflection plate.
7. multi-band array antenna according to claim 6, is characterized in that, in same low frequency radiating element, the radiation arm of horizontal dipole is identical with the height of the radiation arm distance metallic reflection plate of vertical dipole.
8. multi-band array antenna according to claim 1, is characterized in that, described low frequency radiating element works in 698 ~ 960MHz band limits, and described high frequency radiating element works in 1710 ~ 2690MHz band limits.
9. multi-band array antenna according to claim 1, is characterized in that, often in row HF array, the high frequency radiating element between adjacent two low frequency radiating element has more than 2.
10. multi-band array antenna according to claim 1, is characterized in that, row or multiple row HF array are subordinated to same radio frequency system; Or the multiple high frequency radiating element in a row HF array are subordinated to multiple separate radio frequency system.
11. multi-band array antenna 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; First delivery outlet of described one 2 road power splitter is connected with the horizontal dipole of a low frequency radiating element, and the second delivery outlet of the one 2 road power splitter is connected with the input port of the 22 road power splitter; 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 radiating element adjacent with this low frequency radiating element.
12. multi-band array antenna according to claim 1, is characterized in that, the bearing of trend of two oscillators of high frequency radiating element and the bearing of trend of the horizontal dipole of low frequency radiating element are 45 degree of angles.
13. 1 kinds of multi-band array antenna, is characterized in that, comprise metallic reflection plate, and be arranged on metallic reflection plate work in compared with low-frequency range low frequency radiating element and work in the high frequency radiating element of higher frequency band;
Described low frequency radiating element 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 of polarization far field radiation pattern; Wherein, described vertical dipole has two, and described two vertical dipoles are symmetrical the right and left be arranged on horizontal dipole respectively; The center of multiple low frequency radiating element arranges along one or more axis be parallel to each other, and forms row or a multiple row low frequency array; In each row low frequency array, the horizontal dipole of described multiple low frequency radiating element is perpendicular to described axis, the vertical dipole described multiple low frequency radiating element being positioned at the left side is all distributed on the first reference line, and the vertical dipole described multiple low frequency radiating element being positioned at the right is all distributed on the second reference line; Described first reference line and the second reference line all parallel to the axis, and not with dead in line;
Described high frequency radiating element comprises two mutually orthogonal oscillators; Between first reference line of each row low frequency array and the second reference line, multiple high frequency radiating element is arranged in row or multiple row HF array along the direction of paralleling to the axis; And described high frequency radiating element and the first reference line and the second reference line not overlapping;
In same low frequency radiating element, the feed direction of two vertical dipoles is identical; In same row low frequency array, the feed direction of the vertical dipole of neighboring low radiating element is identical, and the feed direction of the horizontal dipole of neighboring low radiating element is contrary.
14. multi-band array antenna according to claim 13, is characterized in that, described low frequency radiating element and the orthographic projection of high frequency radiating element on metallic reflection plate do not overlap mutually.
15. multi-band array antenna according to claim 13, is characterized in that, in each row low frequency array, the center of multiple low frequency radiating element arranges along axis, form a row HF array.
16. multi-band array antenna according to claim 13, is characterized in that, described first reference line and the second reference line lay respectively at axis both sides, and symmetric about the axis.
17. multi-band array antenna according to claim 13, it is characterized in that, in each row HF array, the spacing of adjacent high frequency radiating element has two kinds: the spacing of the multiple high frequency radiating element between adjacent two low frequency radiating element is equal, is the first spacing; The spacing laying respectively at the adjacent high frequency radiating element of the horizontal dipole both sides of same low frequency radiating element is the second spacing; Described second spacing is more than or equal to the first spacing.
18. multi-band array antenna according to claim 13, is characterized in that, in low frequency radiating element, horizontal dipole comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Vertical dipole also comprises two radiation arms be symmetrically distributed on same straight line and the match circuit be connected between two radiation arms; Described two vertical dipoles are vertically mounted on two radiation arms of horizontal dipole respectively, vertical dipole be centrally located on the radiation arm of horizontal dipole; The match circuit of horizontal dipole and vertical dipole is installed vertically on metallic reflection plate; The radiation arm of horizontal dipole and vertical dipole is all parallel to metallic reflection plate.
19. multi-band array antenna according to claim 18, is characterized in that, in same low frequency radiating element, the radiation arm of horizontal dipole is identical with the height of the radiation arm distance metallic reflection plate of vertical dipole.
20. multi-band array antenna according to claim 13, it is characterized in that, described low frequency radiating element works in 698 ~ 960MHz band limits, described high frequency radiating element works in 1710 ~ 2690MHz band limits.
21. multi-band array antenna according to claim 13, is characterized in that, often in row HF array, the high frequency radiating element between adjacent two low frequency radiating element has more than 2.
22. multi-band array antenna according to claim 13, is characterized in that, row or multiple row HF array are subordinated to same radio frequency system; Or the multiple high frequency radiating element in a row HF array are subordinated to multiple separate radio frequency system.
23. multi-band array antenna according to claim 13, 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; First delivery outlet of described one 2 road power splitter is connected with the horizontal dipole of a low frequency radiating element, and the second delivery outlet of the one 2 road power splitter is connected with the input port of the 22 road power splitter; 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 radiating element adjacent with this low frequency radiating element.
24. multi-band array antenna according to claim 13, is characterized in that, the bearing of trend of two oscillators of high frequency radiating element and the bearing of trend of the horizontal dipole of low frequency radiating element are 45 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310513377.2A CN103560335B (en) | 2013-10-25 | 2013-10-25 | Multi-band array antenna |
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| EP3491696B8 (en) | 2016-07-29 | 2022-11-16 | John Mezzalingua Associates LLC | Low profile telecommunications antenna |
| WO2018164947A1 (en) * | 2017-03-06 | 2018-09-13 | John Mezzalingua Associates, LLC. | Cloaking 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 |
| WO2020072880A1 (en) * | 2018-10-05 | 2020-04-09 | Commscope Technologies Llc | Reconfigurable multi-band base station antennas having self-contained sub-modules |
| CN110620292A (en) * | 2019-09-17 | 2019-12-27 | 卞国荣 | VHF circular polarization transmitting antenna |
| CN117896826A (en) * | 2024-03-14 | 2024-04-16 | 广州市浩洋电子股份有限公司 | Ultra-wideband positioning device and positioning method |
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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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| US20110260941A1 (en) * | 2008-10-15 | 2011-10-27 | Argus Technologies (Australia) Pty Ltd. | Wideband radiating elements |
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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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