CN204668458U - Three frequency spiral antenna with circular polarizations - Google Patents
Three frequency spiral antenna with circular polarizations Download PDFInfo
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- CN204668458U CN204668458U CN201520208770.5U CN201520208770U CN204668458U CN 204668458 U CN204668458 U CN 204668458U CN 201520208770 U CN201520208770 U CN 201520208770U CN 204668458 U CN204668458 U CN 204668458U
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Abstract
The utility model discloses a kind of three spiral antenna with circular polarizations frequently, for solving the problem of the large and radiance difference of existing antenna volume.Comprise upper and lower radiant body and feeding network; Upper radiant body is made up of carbon fiber angle dielectric structure (4) and the bifilar helical paster (2) that is printed on its outer surface, and lower radiant body is made up of open column shape dielectric structure (3) and the four arm spiral pasters (1) that are printed on its outer surface; Upper radiant body is arranged on directly over the second fixed base plate (8) by the first fixed base plate (7) and three support columns (9), the top of four arm spiral pasters (1) is more than or equal to 140mm to the bottom distance of bifilar helical paster (2), to get rid of mutual interference when the two works alone; Bifilar helical paster (2), by coaxial line (5) feed, is provided with feeding-network circuits plate (6) in the bottom of lower radiant body.The utility model has the advantage that volume is little and low elevation gain is high, can be used for the communication of P/L/S piggyback satellite.
Description
Technical field
The utility model belongs to antenna technical field, relates to a kind of three frequency spiral antenna with circular polarizations, can be used for the piggyback satellite communication of P/L/S frequency range.
Background technology
In wireless communications, antenna is the electromagnetic visual plants of transmitting and receiving, wherein circular polarized antenna is widely used in satellite communication field again, along with the development of satellite communication cause, especially satellite borne equipment, antenna is had higher requirement, comprises multifrequency point, broad beam, miniaturization etc.
Four-arm spiral antenna and bifilar helical antenna are all the antennas with circular polarization radiation characteristic, are widely used in satellite communication field.The advantage of four-arm spiral antenna is to have broad beam, excellent wide-angle circular polarization that hemisphere covers, do not need with reference to etc. advantage, but its intrinsic frequency band is narrower.Chinese patent grant number CN 102931468 A, disclose a kind of double-frequency quadrifilar helix antenna, its structure as shown in Figure 1, two four-arm spiral antennas are with the coaxial installation of mode that is closed or cascade, both can realize two-frequency operation at the entirety of combination, but four arm spirals can produce the problem being difficult to place when multiple combination realizes multifrequency point work, namely mode that is closed or cascade can cause the four-arm spiral antenna unit for electrical property parameters of bottom or inside more severe, simultaneously, the volume of antenna also can be bigger than normal, three frequently or more multiple-frequency operation be difficult to especially meet performance requirement under requiring.Chinese patent grant number CN 101083358 A discloses a kind of three frequency circle polarization GPS microstrip patch antennas, this antenna adopts three layers of microband paste form to realize three frequency circular polarization, but it is low to there is radiation efficiency in microstrip antenna, and its low elevation angle and circular polarization all not ideal.
Utility model content
The purpose of this utility model is to solve the defect that above-mentioned prior art exists, and proposes a kind of three spiral antenna with circular polarizations frequently, in order to solve the comparatively large and problem of radiance difference of existing helical antenna volume, meets environment for use demand.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of three frequency spiral antenna with circular polarizations, comprise radiant body and feeding network; Radiant body is made up of upper radiant body and lower radiant body, and upper radiant body is arranged on directly over lower radiant body, forms stacked on top of one another structure; Upper radiant body is made up of carbon fiber angle dielectric structure 4 and the bifilar helical paster 2 being printed on its outer surface, and lower radiant body is made up of open column shape dielectric structure 3 and the four arm spiral pasters 1 being printed on its outer surface; Bifilar helical paster 2 adopts dextrorotation rotation direction, and from vertex feed, four arm spiral pasters 1 adopt left-handed rotation direction, from bottom feed; The top of four arm spiral pasters 1 is more than or equal to 140mm to the bottom distance of bifilar helical paster 2; The bottom of lower radiant body is provided with feeding-network circuits plate 6, for giving four arm spiral paster 1 feeds.
Above-mentioned three frequency spiral antenna with circular polarizations, described carbon fiber angle dielectric structure 4 adopts and is formed by the open circles taper dielectric structure smooth connection of two different cone angle, fixes bottom it with the first fixed base plate 7.
Above-mentioned three frequency spiral antenna with circular polarizations, the diameter of described open column shape dielectric structure 3 is R1, its span 100mm≤R1≤120mm, is fixed bottom it by feeding-network circuits plate 6 and the second fixed base plate 8.
Above-mentioned three frequency spiral antenna with circular polarizations, the length of described four arm spiral pasters 1 equals pattern-band 1/4th center operating wavelength, and width is w1, its span 1mm≤w1≤5mm, and helical angle is α 1, its span 30 °≤α 1≤40 °.
Above-mentioned three frequency spiral antenna with circular polarizations, the port of described feeding network adopts amplitude equal and one point of four structure of phase 90 degree, and the phase place of four ports presses right-handed helix regular array, to produce low frequency pattern-band right-handed circular polarization radiation.
Above-mentioned three frequency spiral antenna with circular polarizations, described bifilar helical paster 2 is made up of the first spiral paster 21 and the second spiral paster 22, these two spiral pasters 21, the width of 22 is w2, its span 1mm≤w2≤5mm, helical angle is α 2, its span 74 °≤α 2≤80 °.
Above-mentioned three frequency spiral antenna with circular polarizations, described bifilar helical paster 2 is by coaxial line 5 feed, the inner core 51 of this coaxial line 5 output is welded on the top of the first spiral paster 21, outer core 52 is welded to bottom along the second spiral paster 22 from top, outer core 52 is welded on the first fixed base plate 7, to produce the right-handed circular polarization of intermediate bands L-band and high band S-band.
Above-mentioned three frequency spiral antenna with circular polarizations, described first fixed base plate 7 is fixed by three nonmetal support columns 9 and the second fixed base plate 8, and these two fixed base plates 7 and 8 all adopt alloy in lightweight.
Compared with prior art, tool has the following advantages the utility model:
1, the utility model is owing to have employed the mode by the radiant body of a conical hollow angle structure and the coaxial placement of a hollow cylindrical radiant body lamination, and the helical antenna form that employing two kinds is different, realize three frequency circular polarization radiations, decrease because aerial stack places the impact that quantity crosses multipair bottom antenna performance, antenna structure is simple, small volume, lightweight, can be used in requiring strict environment to antenna volume.
2, upper radiant body of the present utility model is owing to have employed the dielectric structure of conical hollow angle structure, by changing the cone angle of circular cone, improving the consistency of antenna beamwidth in broadband, improve the low elevation gain of antenna.
3, lower radiant body of the present utility model is owing to have employed the feeding classification of end feedback, and make the feeder line of radiant body can be placed on the center of lower radiant body, upper and lower radiant body all presents symmetric State, reduces the impact on upper and lower radiant body radiance.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of existing double-frequency quadrifilar helix antenna;
Fig. 2 is overall structure figure of the present utility model;
Fig. 3 is the utility model four arm helical structure figure;
Fig. 4 is the utility model two-arm screw top structure chart;
Fig. 5 is two-arm helical structure figure of the present utility model;
Fig. 6 is upper and lower lamination fixed structure chart of the present utility model;
Fig. 7 is the lower radiant body standing-wave ratio resolution chart of the utility model embodiment 1;
Fig. 8 is the upper radiant body standing-wave ratio resolution chart of the utility model embodiment 1;
Fig. 9 is the lower radiant body pattern-band Different Plane antenna pattern of the utility model embodiment 1;
Figure 10 is the upper radiant body L-band Different Plane antenna pattern of the utility model embodiment 1;
Figure 11 is the upper radiant body S-band Different Plane antenna pattern of the utility model embodiment 1;
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Embodiment 1
With reference to Fig. 2, upper radiant body is made up of carbon fiber angle dielectric structure 4 and the bifilar helical paster 2 being printed on its outer surface, lower radiant body is made up of open column shape dielectric structure 3 and the four arm spiral pasters 1 being printed on its outer surface, the first fixed base plate 7 and the second fixed base plate 8 is respectively arranged with in the bottom of upper radiant body and lower radiant body, three nonmetal support columns 9 pass the hollow of open column shape dielectric structure 3, by the first fixed base plate 7, upper radiant body is fixed on the second fixed base plate 8, make two radiant bodies coaxial up and down, form stepped construction; The rotation direction of bifilar helical paster 2 is dextrorotation, feedback mode in top is adopted to carry out feed, by coaxial line 5 feed, the inner core 51 of this coaxial line 5 output is connected with the second spiral paster 22 with the first spiral paster 21 respectively with outer core 52, outer core 52 along the second spiral paster 22 from welded top to bottom, outer core 52 is welded on the first fixed base plate 7, to produce the right-handed circular polarization of intermediate bands L-band and high band S-band.The rotation direction of four arm spiral pasters 1 is left-handed, adopt end feedback mode feed, the bottom of lower radiant body is provided with feeding-network circuits plate 6, the port of feeding network adopts amplitude equal and one point of four structure of phase 90 degree, the phase place of four ports presses right-handed helix regular array, to produce low frequency pattern-band right-handed circular polarization radiation.The top of four arm spiral pasters 1 is more than or equal to 140mm to the bottom distance of bifilar helical paster 2, to get rid of mutual interference when the two works alone.
With reference to Fig. 3, lower radiant body is bolted on the second fixed base plate 8, and the diameter R1 of open column shape dielectric structure 3 gets 110mm, and four arm spiral paster 1 helix length get 1/4th center operating wavelength, and coil width w1 gets 4mm, and lead angle α 1 gets 55 degree.
With reference to Fig. 4, bifilar helical paster 2 adopts top-fed mode by coaxial line 5 feed, and the inner core 51 of this coaxial line 5 is connected with the second spiral paster 22 with the first spiral paster 21 with outer core 52, respectively to realize right-handed circular polarization; Outer core 52, is welded on the first fixed base plate 7 along the second spiral paster 22 by outer core 52 from welded top to bottom, and the width of the first spiral paster 21 and the second spiral paster 22 all gets 3mm.
With reference to Fig. 5, carbon fiber angle dielectric structure 4 adopts carbon fiber angle structure, formed by the open circles taper dielectric structure smooth connection of upper and lower two different cone angle, wherein upper conical dielectric structure top diameter gets 9mm, base diameter gets 55mm, and inferior pyramidal dielectric structure base diameter gets 75mm; The coil width w2 of bifilar helical paster 2 gets 4mm, and spiral shell lift angle α 2 gets 13 degree.The bottom of carbon fiber angle dielectric structure 4 is fixed on the first fixed base plate 7.First fixed base plate 7 adopts circular lightweight aluminium, and diameter is 87mm.
With reference to Fig. 6, the first fixed base plate 7 is fixed on the second fixed base plate 8 by three nonmetal support columns 9, and three nonmetal support columns adopt glass-reinforced plastic material, and the second fixed base plate 8 adopts circular lightweight aluminium, and diameter is 150mm.
Embodiment 2
Embodiment 2 is identical with the structure of embodiment 1, only adjusts following parameter:
The diameter R1 of circular cylindrical dielectric structure 3 gets 100mm, and the spiral patch width W1 of four arm spiral pasters 1 gets 1mm, and spiral shell lift angle α 1 gets 40 degree, and the coil width W2 of bifilar helical paster 2 gets 1mm, and spiral shell lift angle α 2 gets 80 degree.
Embodiment 3
Embodiment 3 is identical with the structure of embodiment 1, only adjusts following parameter:
The diameter R1 of circular cylindrical dielectric structure 3 gets 120mm, and the spiral patch width W1 of four arm spiral pasters 1 gets 10mm, and spiral shell lift angle α 1 gets 30 degree, and the coil width W2 of bifilar helical paster 2 gets 5mm, and spiral shell lift angle α 2 gets 74 degree.
Below in conjunction with test result, effect of the present utility model is described further:
With reference to Fig. 7, it is the lower radiant body standing-wave ratio resolution chart of the utility model embodiment 1.Be less than 1.5 for standard with standing-wave ratio, lower radiant body is under actual measurement environment, and standing-wave ratio all can reach less than 1.5 in 350MHz ~ 450MHz frequency range, meets pattern-band performance index completely.
With reference to Fig. 8, it is the upper radiant body standing-wave ratio resolution chart of the utility model embodiment 1.Be less than 1.5 for standard with standing-wave ratio, upper radiant body is under actual measurement environment, and standing-wave ratio all can reach less than 1.5 in 1400MHz ~ 2100MHz frequency range, meets L, S-band performance index completely.
With reference to Fig. 9, for the lower radiant body pattern-band of the utility model embodiment 1 is at the microwave dark room measured result of Different Plane antenna pattern.Fig. 9 (a) is pattern-band Phi=0 ° and the Phi=90 ° i.e. antenna pattern in XOZ and YOZ face, and maximum gain is 3.8dBi; Fig. 9 (b) is the antenna pattern in pattern-band Theta=58 ° plane, can find out as Theta=58 °, the gain in XOY face is greater than 0dBi, Fig. 9 (c) is the antenna pattern in pattern-band Theta=65 ° plane, can find out that, as Theta=65 °, the gain in XOY face is greater than 0dBi, above antenna performance index illustrates that on-axis gain is high, the low elevation angle is good, meets pattern-band performance index completely.
With reference to Figure 10, for the upper radiant body L-band of the utility model embodiment 1 is at the microwave dark room measured result of Different Plane antenna pattern.Figure 10 (a) is L-band Phi=0 ° and the Phi=90 ° i.e. antenna pattern in XOZ and YOZ face, and maximum gain is 3.6dBi; Figure 10 (b) is the antenna pattern in L-band Theta=58 ° plane, can find out that, as Theta=58 °, the gain in XOY face is greater than 0dBi; Figure 10 (c) is the antenna pattern in L-band Theta=65 ° plane, can find out that, as Theta=65 °, the gain in XOY face is totally greater than 0dBi, above antenna performance index illustrates that on-axis gain is high, the low elevation angle is good, meets L-band performance index completely.
With reference to Figure 11, for the upper radiant body S-band of the utility model embodiment 1 is at the microwave dark room measured result of Different Plane antenna pattern.Figure 11 (a) is S-band Phi=0 ° and the Phi=90 ° i.e. antenna pattern in XOZ and YOZ face, and maximum gain is 3.2dBi; Figure 11 (b) is the antenna pattern in S-band Theta=58 ° of plane, finds out that, as Theta=58 °, the gain in XOY face is greater than 0dBi; Figure 11 (c) is the antenna pattern in S-band Theta=65 ° of plane, can find out that, as Theta=65 °, the gain in XOY face is all greater than 0dBi, above antenna performance index illustrates that on-axis gain is high, the low elevation angle is good, meets S-band performance index completely.
With reference to table 1, for the axial axis of the utility model embodiment 1 compares test result.Be less than 3 for standard with axial axis ratio, the axial axis of P, L, S-band is than being all less than 2.5.
Table 1
With reference to table 2, it is the Phase center stability test result of the utility model embodiment 1.Be less than 5mm for standard with Phase center stability, the Phase center stability of P, L and S-band is all less than 5.
Table 2
Claims (8)
1. three frequency spiral antenna with circular polarizations, comprise radiant body and feeding network; Radiant body is made up of upper radiant body and lower radiant body, and upper radiant body is arranged on directly over lower radiant body, forms stacked on top of one another structure; It is characterized in that, upper radiant body is made up of carbon fiber angle dielectric structure (4) and the bifilar helical paster (2) that is printed on its outer surface, and lower radiant body is made up of open column shape dielectric structure (3) and the four arm spiral pasters (1) that are printed on its outer surface; Bifilar helical paster (2) adopts dextrorotation rotation direction, and from vertex feed, four arm spiral pasters (1) adopt left-handed rotation direction, from bottom feed; The top of four arm spiral pasters (1) is more than or equal to 140mm to the bottom distance of bifilar helical paster (2); Feeding-network circuits plate (6) is provided with, for giving four arm spiral paster (1) feeds in the bottom of lower radiant body.
2. three frequency spiral antenna with circular polarizations according to claim 1, it is characterized in that, the employing of described carbon fiber angle dielectric structure (4) is formed by the open circles taper dielectric structure smooth connection of two different cone angle, fixes bottom it with the first fixed base plate (7).
3. three frequency spiral antenna with circular polarizations according to claim 1, it is characterized in that, the diameter of described open column shape dielectric structure (3) is R1, its span 100mm≤R1≤120mm, is fixed by feeding-network circuits plate (6) and the second fixed base plate (8) bottom it.
4. three frequency spiral antenna with circular polarizations according to claim 1, it is characterized in that, the length of described four arm spiral pasters (1) equals pattern-band 1/4th center operating wavelength, width is w1, its span 1mm≤w1≤5mm, helical angle is α 1, its span 30 °≤α 1≤40 °.
5. three frequency spiral antenna with circular polarizations according to claim 1, it is characterized in that, the port of described feeding network adopts amplitude equal and one point of four structure of phase 90 degree, and the phase place of four ports presses right-handed helix regular array, to produce low frequency pattern-band right-handed circular polarization radiation.
6. three frequency spiral antenna with circular polarizations according to claim 1, it is characterized in that, described bifilar helical paster (2) is made up of the first spiral paster (21) and the second spiral paster (22), these two spiral pasters (21,22) width is w2, its span 1mm≤w2≤5mm, helical angle is α 2, its span 74 °≤α 2≤80 °.
7. three frequency spiral antenna with circular polarizations according to claim 1, it is characterized in that, described bifilar helical paster (2) is by coaxial line (5) feed, the inner core (51) of this coaxial line (5) output is welded on the top of the first spiral paster (21), outer core (52) is welded to bottom along the second spiral paster (22) from top, outer core (52) is welded on the first fixed base plate (7), to produce the right-handed circular polarization of intermediate bands L-band and high band S-band.
8. three frequency spiral antenna with circular polarizations according to claim 2, it is characterized in that, described first fixed base plate (7) is fixed by three nonmetal support columns (9) and the second fixed base plate (8), these two fixed base plates (7,8) all adopt alloy in lightweight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208770.5U CN204668458U (en) | 2015-04-08 | 2015-04-08 | Three frequency spiral antenna with circular polarizations |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520208770.5U CN204668458U (en) | 2015-04-08 | 2015-04-08 | Three frequency spiral antenna with circular polarizations |
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| CN106025516A (en) * | 2016-06-16 | 2016-10-12 | 王博 | Multi-band common-caliber composite miniature cloud tower antenna |
| CN107039751A (en) * | 2017-01-12 | 2017-08-11 | 成都天锐通科技有限公司 | A kind of helical antenna of uhf band |
| CN110247169A (en) * | 2019-06-27 | 2019-09-17 | 大连海事大学 | A kind of double-frequency quadrifilar helix antenna with broad beam characteristic |
| CN110752436A (en) * | 2019-10-11 | 2020-02-04 | 江苏三和欣创通信科技有限公司 | Laminated multi-arm double-frequency helical antenna device |
| CN110828971A (en) * | 2019-10-18 | 2020-02-21 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
| CN111342225A (en) * | 2020-03-19 | 2020-06-26 | 上海旦迪通信技术有限公司 | Miniaturized three-frequency circuit loading helical antenna |
| CN112952406A (en) * | 2019-12-11 | 2021-06-11 | 东莞天速通信技术有限公司 | Space power synthesis antenna and signal transceiving method thereof |
| CN113258278A (en) * | 2021-04-30 | 2021-08-13 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband circularly polarized phased array antenna unit |
| CN114284705A (en) * | 2021-12-30 | 2022-04-05 | 重庆两江卫星移动通信有限公司 | Three-frequency three-feed antenna in satellite communication |
| CN112952406B (en) * | 2019-12-11 | 2024-05-14 | 东莞天速通信技术有限公司 | Space power synthesis antenna and signal receiving and transmitting method thereof |
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| CN106025516A (en) * | 2016-06-16 | 2016-10-12 | 王博 | Multi-band common-caliber composite miniature cloud tower antenna |
| CN107039751A (en) * | 2017-01-12 | 2017-08-11 | 成都天锐通科技有限公司 | A kind of helical antenna of uhf band |
| CN107039751B (en) * | 2017-01-12 | 2023-05-16 | 成都天锐通科技有限公司 | Spiral antenna of UHF frequency band |
| CN110247169B (en) * | 2019-06-27 | 2020-07-28 | 大连海事大学 | Double-frequency quadrifilar helix antenna with wide wave beam characteristic |
| CN110247169A (en) * | 2019-06-27 | 2019-09-17 | 大连海事大学 | A kind of double-frequency quadrifilar helix antenna with broad beam characteristic |
| CN110752436A (en) * | 2019-10-11 | 2020-02-04 | 江苏三和欣创通信科技有限公司 | Laminated multi-arm double-frequency helical antenna device |
| CN110828971A (en) * | 2019-10-18 | 2020-02-21 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
| CN110828971B (en) * | 2019-10-18 | 2021-02-26 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
| CN112952406A (en) * | 2019-12-11 | 2021-06-11 | 东莞天速通信技术有限公司 | Space power synthesis antenna and signal transceiving method thereof |
| CN112952406B (en) * | 2019-12-11 | 2024-05-14 | 东莞天速通信技术有限公司 | Space power synthesis antenna and signal receiving and transmitting method thereof |
| CN111342225B (en) * | 2020-03-19 | 2021-01-29 | 上海旦迪通信技术有限公司 | Miniaturized three-frequency circuit loading helical antenna |
| CN111342225A (en) * | 2020-03-19 | 2020-06-26 | 上海旦迪通信技术有限公司 | Miniaturized three-frequency circuit loading helical antenna |
| CN113258278A (en) * | 2021-04-30 | 2021-08-13 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband circularly polarized phased array antenna unit |
| CN113258278B (en) * | 2021-04-30 | 2023-06-02 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband circularly polarized phased array antenna unit |
| CN114284705A (en) * | 2021-12-30 | 2022-04-05 | 重庆两江卫星移动通信有限公司 | Three-frequency three-feed antenna in satellite communication |
| CN114284705B (en) * | 2021-12-30 | 2024-04-16 | 重庆两江卫星移动通信有限公司 | Three-frequency three-feed antenna in satellite communication |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160408 |