CN105161826A - Dual-polarized ultra-wideband base station antenna radiation unit - Google Patents
Dual-polarized ultra-wideband base station antenna radiation unit Download PDFInfo
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- CN105161826A CN105161826A CN201510428130.XA CN201510428130A CN105161826A CN 105161826 A CN105161826 A CN 105161826A CN 201510428130 A CN201510428130 A CN 201510428130A CN 105161826 A CN105161826 A CN 105161826A
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- base station
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- station antenna
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Abstract
The invention discloses a dual-polarized ultra-wideband base station antenna radiation unit comprising an unbalanced-balanced feed connecting seat, a radiator, and a feed conductor. The radiator is formed by two pairs of orthogonal oscillator arms. The oscillator arms are arranged in the same plane and are installed on one end of the unbalanced-balanced feed connecting seat. The feed conductor is equipped with a dielectric clamp, is installed inside the unbalanced-balanced feed connecting seat through the dielectric clamp, and is separated from the unbalanced-balanced feed connecting seat. The dual-polarized ultra-wideband base station antenna radiation unit has beneficial effects of high installation firmness, good batch production consistency, good cross polarization ratio, high port isolation, and a broadband characteristic between 1680 and 3000MHz, achieves a wider bandwidth while satisfying the requirement of a conventional broadband base station antenna, provides a condition for later expansion, and has wide application prospect.
Description
Technical field
The present invention relates to mobile communication antenna correlative technology field, refer in particular to a kind of dual polarization ultrabroad band base station antenna radiation unit.
Background technology
Along with the renewal day by day of science and technology, the development of mechanics of communication constantly advances.Mobile communication has come into the life of people, and plays important role.The development of a new generation's technology, the demand for antenna shared by multiple systems is more and more higher, and this just proposes higher challenge and requirement to wide frequency antenna.This indicates that the telecommunication technology levels of China is to the new stage of driving the industry development with autonomous innovation, for China's telecommunications industry sustainable development, realize the transformation tool that China makes the country prosperous to telecommunications by telecommunications big country and be of great significance.
The market demand is a kind of can take into account existing standard, and working frequency range is all channel antenna of 1700-2700MHz, and its relative bandwidth is up to 44.5%.This all channel antenna is all wider than conventional various antenna for base station bandwidth, but it only meets the needs of existing 4G multisystem network, cannot expand for later stage communication.
Summary of the invention
There is above-mentioned deficiency to overcome in prior art in the present invention, provides a kind of bandwidth, isolation is high and the dual polarization ultrabroad band base station antenna radiation unit that cross polarization is good.
To achieve these goals, the present invention is by the following technical solutions:
A kind of dual polarization ultrabroad band base station antenna radiation unit, comprise imbalance-balanced feeding Connection Block, radiant body and feed-through, described radiant body forms orthogonal oscillator arms by two, described oscillator arms is in same plane, described oscillator arms is arranged on one end of imbalance-balanced feeding Connection Block, described feed-through is provided with medium fastener, and described feed-through is arranged on the inside of imbalance-balanced feeding Connection Block by medium fastener and is separated with imbalance-balanced feeding Connection Block.By the structural design of oscillator arms and feed-through, effectively improve bandwidth end, improve port isolation effect simultaneously, with good cross polarization ratio, and simple and compact for structure, easy for installation, consistency is high.
As preferably, described oscillator arms and imbalance-balanced feeding Connection Block are integrated, the shape of described imbalance-balanced feeding Connection Block is cylindrical, the center of described imbalance-balanced feeding Connection Block is provided with four through holes, four described through holes are centrosymmetric distribution, hollow slots is provided with between described adjacent two through holes, described each hollow slots is communicated with and mutually by imbalance-balanced feeding Connection Block quartering, described oscillator arms and through hole one_to_one corresponding, four described oscillator arms are centrosymmetric distribution.This integrated design enhances steadiness and the consistency of this dual polarization ultrabroad band base station antenna radiation unit, and colleague improves mass productivity.
As preferably, be provided with trapezoidal hollow out gap between described adjacent two oscillator arms, described trapezoidal hollow out gap is communicated with hollow slots, and the width of described hollow slots increases from the one end away from oscillator arms gradually to the one end near oscillator arms.The effect of intercoupling between oscillator arms produces gradual change with trapezoidal spacing, and the impedance of this fade effect and this dual polarization ultrabroad band base station antenna radiation unit produces negative function with the effect of frequency change, thus slow down the change of this dual polarization ultrabroad band base station antenna radiation unit impedance, coupling can be completed in wider frequency range, reach the object of broadening oscillator bandwidth.
As preferably, described feed-through is two, and described feed-through is arranged in two adjacent through holes by medium fastener.
As preferably, the shape of described feed-through is L-type, described feed-through comprises long-armed and galianconism, described long-armed one end is connected with one end of galianconism is vertical, described long-armed top and bottom are equipped with the draw-in groove for installing medium fastener, the shape of described medium fastener is cylindrical, one side of described medium fastener is provided with opening, described medium fastener by opening to match with draw-in groove be arranged on long-armed on, the upper groove projected upwards is provided with in the middle of one of them galianconism of described two feed-throughs, outstanding low groove is provided with downwards in the middle of another galianconism, the galianconism of described two feed-throughs is mutually intersected in X-shaped by upper groove with the cooperation of low groove and does not contact.
As preferably, described medium fastener is memory-type medium fastener, and the diameter of described medium fastener is greater than the diameter of through hole.Feed-through is fixed on the inside of imbalance-balanced feeding Connection Block by medium fastener and does not directly contact with imbalance-balanced feeding Connection Block, by carrying out couple feed with the boring structure division of imbalance-balanced feeding Connection Block.The coupling of imbalance-balanced feeding Connection Block and feed-through, achieves coaxial line never balanced feeding, to the conversion of balanced feeding, reaches effect radiant body being stablized to feed, thus the electrical performance indexes obtained.
As preferably, the other end of described imbalance-balanced feeding Connection Block and the through hole being provided with feed-through is provided with welding base, described welding base hollow and being communicated with through hole, described welding base is provided with welding groove.Welding base and the design of welding groove, so as with the welding of feed-through.
As preferably, the inside of described oscillator arms is provided with some hollow out polygon cavitys.Polygon cavity effectively can change the CURRENT DISTRIBUTION in oscillator arms, thus the impedance bandwidth of this dual polarization ultrabroad band base station antenna radiation unit is extended, and can alleviate oscillator weight, reduces costs; Its objective is and slow down this dual polarization ultrabroad band base station antenna radiation unit impedance variation, the effective broadening bandwidth of this dual polarization ultrabroad band base station antenna radiation unit, fully can meet the demand of each operator, and exceed existing radiating element bandwidth, carry out the preparation of the expansion of later stage frequency range.
As preferably, the other end of described imbalance-balanced feeding Connection Block is provided with metallic reflection plate, and described welding base runs through metallic reflection plate, and described metallic reflection plate is fixedly connected with imbalance-balanced feeding Connection Block by screw.Height between oscillator arms and metallic reflection plate meets quarter-wave, and often through quarter-wave, impedance all converts once, then by imbalance-balanced feeding Connection Block, better can reach coupling, promote bandwidth further.
As preferably, be provided with image film above described oscillator arms, four angles of described image film be equipped with installing hole, be provided with joint pin in described installing hole, described image film is removably connected by joint pin and four oscillator arms.Being designed for of image film promotes bandwidth further.
The invention has the beneficial effects as follows: there is installation steadiness high, batch production consistency is good, good cross polarization ratio, interport isolation is high, and the broadband character of 1680-3000MHz, while the demand solving current existing broadband antenna for base station, there is higher bandwidth, for later expansion, condition is provided, gathers around and have broad application prospects.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the detonation configuration schematic diagram of Fig. 1;
Fig. 3 is the structural representation adding metallic reflection plate;
Fig. 4 is the upward view of Fig. 3.
In figure: 1. image film, 2. joint pin, 3. medium fastener, 4. feed-through, 5. oscillator arms, 6. trapezoidal hollow out gap, 7. hollow slots, 8. imbalance-balanced feeding Connection Block, 9. welding base, 10. welds groove, 11. upper grooves, 12. low grooves, 13. openings, 14. through holes, 15. polygon cavitys, 16. metallic reflection plates, 17. screws, 18. galianconism, 19. is long-armed, 20. installing holes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In embodiment described as shown in Figure 1, Figure 2, a kind of dual polarization ultrabroad band base station antenna radiation unit, comprise imbalance-balanced feeding Connection Block 8, radiant body and feed-through 4, radiant body forms orthogonal oscillator arms 5 by two, oscillator arms 5 is in same plane, oscillator arms 5 is arranged on one end of imbalance-balanced feeding Connection Block 8, feed-through 4 is provided with medium fastener 3, and feed-through 4 is arranged on the inside of imbalance-balanced feeding Connection Block 8 by medium fastener 3 and is separated with imbalance-balanced feeding Connection Block 8.
Oscillator arms 5 and imbalance-balanced feeding Connection Block 8 are integrated, the shape of imbalance-balanced feeding Connection Block 8 is cylindrical, the center of imbalance-balanced feeding Connection Block 8 is provided with four through holes 14, four through holes 14 are centrosymmetric distribution, hollow slots 7 is provided with between adjacent two through holes 14, each hollow slots 7 is communicated with and mutually by imbalance-balanced feeding Connection Block 8 quartering, oscillator arms 5 and through hole 14 one_to_one corresponding, and four oscillator arms 5 are centrosymmetric distribution.Be provided with trapezoidal hollow out gap 6 between adjacent two oscillator arms 5, trapezoidal hollow out gap 6 is communicated with hollow slots 7, and the width of hollow slots 7 increases from the one end away from oscillator arms 5 gradually to the one end near oscillator arms 5.The inside of oscillator arms 5 is provided with some hollow out polygon cavitys 15.
Feed-through 4 is two, and feed-through 4 is arranged in two adjacent through holes 14 by medium fastener 3.The shape of feed-through 4 is L-type, feed-through 4 comprises long-armed 19 and galianconism 18, one end of long-armed 19 is connected with one end of galianconism 18 is vertical, the top and bottom of long-armed 19 are equipped with the draw-in groove for installing medium fastener 3, the shape of medium fastener 3 is cylindrical, one side of medium fastener 3 is provided with opening 13, medium fastener 3 to be matched with draw-in groove by opening 13 and is arranged on long-armed 19, the upper groove 11 projected upwards is provided with in the middle of one of them galianconism 18 of two feed-throughs 4, outstanding low groove 12 is provided with downwards in the middle of another galianconism 18, the galianconism 18 of two feed-throughs 4 is mutually intersected in X-shaped by upper groove 11 with the cooperation of low groove 12 and does not contact.Medium fastener 3 is memory-type medium fastener 3, and the diameter of medium fastener 3 is greater than the diameter of through hole 14.
Be provided with image film 1 above oscillator arms 5, four angles of image film 1 be equipped with installing hole 20, be provided with joint pin 2 in installing hole 20, image film 1 is removably connected by joint pin 2 and four oscillator arms 5.The other end of imbalance-balanced feeding Connection Block 8 and through hole 14 place being provided with feed-through 4 is provided with welding base 9, welding base 9 hollow and being communicated with through hole 14, welding base 9 is provided with welding groove 10.As shown in Figure 3, Figure 4, the other end of imbalance-balanced feeding Connection Block 8 is provided with metallic reflection plate 16, and welding base 9 runs through metallic reflection plate 16, and metallic reflection plate 16 is fixedly connected with imbalance-balanced feeding Connection Block 8 by screw 17.
This dual polarization ultrabroad band base station antenna radiation unit is used for being arranged on metallic reflection plate 16 and forms antenna, oscillator arms 5 and imbalance-balanced feeding Connection Block 8 are formed in one, enhance steadiness and the consistency of this bipolar broadband antenna radiating element, improve mass productivity.Imbalance-balanced feeding Connection Block 8 is arranged on metallic reflection plate 16, plays a supportive role, play transmission line effect to feed-through 4 to this bipolar broadband antenna radiating element.Feed-through 4 is crossed medium fastener 3 and is fixed the inside of imbalance-balanced feeding Connection Block 8 and directly do not contact with imbalance-balanced feeding Connection Block 8, by carrying out couple feed with interior bone 14 hollow structural part of imbalance-balanced feeding Connection Block 8.The galianconism 18 of feed-through 4 is welded in oscillator arms 5, make feed-through 4 more firm like this, long-armed 19 of feed-through 4 welds with the inner wire of coaxial line, the outer conductor of coaxial line is welded with imbalance-balanced feeding Connection Block 8 by welding base 9, imbalance-balanced feeding Connection Block 8 and the coupling of feed-through 4, achieve coaxial line never balanced feeding, to the conversion of balanced feeding, reach effect radiant body being stablized to feed, thus the electrical performance indexes obtained.
The effect of intercoupling between oscillator arms 5 produces gradual change with trapezoidal spacing, and the impedance of this fade effect and this dual polarization ultrabroad band base station antenna radiation unit produces negative function with the effect of frequency change, thus slow down the change of this dual polarization ultrabroad band base station antenna radiation unit impedance, coupling can be completed in wider frequency range, reach the object of broadening oscillator bandwidth.Point-symmetric mode in four oscillator arms 5 use, polarization distribution at 45 °, be centered around on imbalance-balanced feeding Connection Block 8, and and height between metallic reflection plate 16 meet quarter-wave, often through quarter-wave, impedance all converts once, then by imbalance-balanced feeding Connection Block 8, better can reach coupling, promote bandwidth further.Each a period of time arm becomes droplet-shaped, the polygon cavity 15 that its inside is made up of even hollow out triangular form and ellipse, polygon cavity 15 effectively can change the CURRENT DISTRIBUTION in oscillator arms 5, thus the impedance bandwidth of this dual polarization ultrabroad band base station antenna radiation unit is extended, and oscillator weight can be alleviated, reduce costs, its objective is and slow down this dual polarization ultrabroad band base station antenna radiation unit impedance variation, the effective broadening bandwidth of this dual polarization ultrabroad band base station antenna radiation unit.Fully can meet the demand of each operator, and exceed existing radiating element bandwidth, carry out the preparation of the expansion of later stage frequency range.It is high that the present invention has installation steadiness, batch production consistency is good, cross polarization is than good and that interport isolation is high feature, and the broadband character of 1680-3000MHz, while the demand solving current existing broadband antenna for base station, there is higher bandwidth, be later expansion, condition is provided.
Claims (10)
1. a dual polarization ultrabroad band base station antenna radiation unit, it is characterized in that, comprise imbalance-balanced feeding Connection Block (8), radiant body and feed-through (4), described radiant body forms orthogonal oscillator arms (5) by two, described oscillator arms (5) is in same plane, described oscillator arms (5) is arranged on one end of imbalance-balanced feeding Connection Block (8), described feed-through (4) is provided with medium fastener (3), described feed-through (4) is arranged on the inside of imbalance-balanced feeding Connection Block (8) by medium fastener (3) and is separated with imbalance-balanced feeding Connection Block (8).
2. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 1, it is characterized in that, described oscillator arms (5) and imbalance-balanced feeding Connection Block (8) are integrated, the shape of described imbalance-balanced feeding Connection Block (8) is cylindrical, the center of described imbalance-balanced feeding Connection Block (8) is provided with four through holes (14), four described through holes (14) are centrosymmetric distribution, hollow slots (7) is provided with between described adjacent two through holes (14), described each hollow slots (7) is communicated with and mutually by imbalance-balanced feeding Connection Block (8) quartering, described oscillator arms (5) and through hole (14) one_to_one corresponding, four described oscillator arms (5) are centrosymmetric distribution.
3. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 2, it is characterized in that, trapezoidal hollow out gap (6) is provided with between described adjacent two oscillator arms (5), described trapezoidal hollow out gap (6) is communicated with hollow slots (7), and the width of described hollow slots (7) increases from the one end away from oscillator arms (5) gradually to the one end near oscillator arms (5).
4. a kind of dual polarization ultrabroad band base station antenna radiation unit according to Claims 2 or 3, it is characterized in that, described feed-through (4) is two, and described feed-through (4) is arranged in two adjacent through holes (14) by medium fastener (3).
5. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 4, it is characterized in that, the shape of described feed-through (4) is L-type, described feed-through (4) comprises long-armed (19) and galianconism (18), the one end of described long-armed (19) is connected with one end of galianconism (18) is vertical, the top and bottom of described long-armed (19) are equipped with the draw-in groove for installing medium fastener (3), the shape of described medium fastener (3) is cylindrical, one side of described medium fastener (3) is provided with opening (13), described medium fastener (3) to be matched with draw-in groove by opening (13) and is arranged on long-armed (19), the upper groove (11) projected upwards is provided with in the middle of one of them galianconism (18) of described two feed-throughs (4), outstanding low groove (12) is provided with downwards in the middle of another galianconism (18), the galianconism (18) of described two feed-throughs (4) is mutually intersected in X-shaped by the cooperation of upper groove (11) with low groove (12) and is not contacted.
6. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 5, it is characterized in that, described medium fastener (3) is memory-type medium fastener (3), and the diameter of described medium fastener (3) is greater than the diameter of through hole (14).
7. a kind of dual polarization ultrabroad band base station antenna radiation unit according to Claims 2 or 3, it is characterized in that, the other end of described imbalance-balanced feeding Connection Block (8) and through hole (14) place being provided with feed-through (4) is provided with welding base (9), described welding base (9) hollow and being communicated with through hole (14), described welding base (9) is provided with welding groove (10).
8. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 1 or 2 or 3, is characterized in that, the inside of described oscillator arms (5) is provided with some hollow out polygon cavitys (15).
9. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 7, it is characterized in that, the other end of described imbalance-balanced feeding Connection Block (8) is provided with metallic reflection plate (16), described welding base (9) runs through metallic reflection plate (16), and described metallic reflection plate (16) is fixedly connected with imbalance-balanced feeding Connection Block (8) by screw (17).
10. a kind of dual polarization ultrabroad band base station antenna radiation unit according to claim 1 or 2 or 3, it is characterized in that, described oscillator arms (5) top is provided with image film (1), four angles of described image film (1) are equipped with installing hole (20), be provided with joint pin (2) in described installing hole (20), described image film (1) is removably connected by joint pin (2) and four oscillator arms (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510428130.XA CN105161826A (en) | 2015-07-20 | 2015-07-20 | Dual-polarized ultra-wideband base station antenna radiation unit |
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| CN201510428130.XA CN105161826A (en) | 2015-07-20 | 2015-07-20 | Dual-polarized ultra-wideband base station antenna radiation unit |
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Cited By (5)
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| CN106785376A (en) * | 2017-01-13 | 2017-05-31 | 嘉兴市安信通讯技术有限公司 | A kind of dual polarization broadband base station antenna radiation unit |
| CN107508037A (en) * | 2017-07-11 | 2017-12-22 | 上海安费诺永亿通讯电子有限公司 | Base station antenna unit and antenna for base station |
| CN108666746A (en) * | 2018-04-26 | 2018-10-16 | 国动科技南京有限公司 | A kind of integration element antenna |
| CN110752438A (en) * | 2019-11-05 | 2020-02-04 | 武汉虹信通信技术有限责任公司 | Dual-polarization FAD radiating element |
| CN111430883A (en) * | 2019-12-24 | 2020-07-17 | 瑞声科技(新加坡)有限公司 | Base station antenna |
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Application publication date: 20151216 |