CN201904433U - Circular polarization array antenna capable of realizing wide-angle scanning at Ka (K-above) frequency range - Google Patents
Circular polarization array antenna capable of realizing wide-angle scanning at Ka (K-above) frequency range Download PDFInfo
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- CN201904433U CN201904433U CN2010206456725U CN201020645672U CN201904433U CN 201904433 U CN201904433 U CN 201904433U CN 2010206456725 U CN2010206456725 U CN 2010206456725U CN 201020645672 U CN201020645672 U CN 201020645672U CN 201904433 U CN201904433 U CN 201904433U
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Abstract
The utility model discloses a circular polarization array antenna capable of realizing wide-angle scanning at the Ka frequency range, which comprises a cavity surface (1), a radiating unit (2) and fixed nuts (3). The radiating unit is composed of cross oscillators (4), an insertion socket (6) and a coaxial cable (8), wherein the insertion socket (6) is provided with a square platform (11), threads (12) are arranged at the lower end of the square platform (11), an SMP (symmetrical multiprocessing) interface (13) is arranged on the inner side of the threads (12), and the radiating unit (2) is inserted onto the cavity surface (1) and fixed with the fixed nuts (3) by the threads (12). An outer conductor (9) of the coaxial cable (8) has two symmetric gap baluns (5), and an inner conductor (7) of the coaxial cable (8) is fixedly connected with one oscillator of the cross oscillators (4). By the aid of the square platform, the threads and a radiating unit socket of the SMP interface, assembling difficulty of an array surface is reduced, capability of inserting and replacement is realized, and risk in researching the integral array surface of the antenna is reduced.
Description
Technical field
The utility model belongs to antenna technical field, particularly a kind of Ka frequency range large-angle scanning circular polarised array antenna.
Background technology
Space station, airship, aircraft and guided missile etc. adopt with geosynchronous satellite and realize relaying in order to satisfy the telecommunication requirement.For satisfying telecommunication, high-speed maneuver platform, acquisition and tracking, requirement such as anti-interference, stealthy fast, adopt phased array antenna.For satisfying flying platform miniaturization, lightweight and anti-interference requirement, phase array adopts Ka and EHF frequency range, covers for realizing prompt fast change of wave beam and wide zone, requires can realizing ± the two-dimentional conical scanning of 60～70 degree of phased array antenna.
Along with the development and change of present military situation, the rate of information throughput of airborne/missile-borne is more and more higher, and the operating distance of requirement is more and more far away, and antijamming capability is more and more stronger, has very strong stealthy ability, and is little to the influence of platform mobility.That adopts at present extensively defends logical terminal antenna, as the movable reflecting surface of machinery, dynamo-electric mixed sweep Waveguide slot battle array etc., all can not satisfy the motor platform demand.High speed such as space station and airship aircraft is for realizing transfer of data, requirement can be set up link fast, realization being caught fast and following the tracks of relaying star and ground station, and along with the increase gradually of transmission rate, acquisition and tracking is more and more difficult, and the movable reflecting surface terminal of simultaneously present machinery is influential to platform mobility.
For this reason, study Ka frequency range large-angle scanning active phase array antenna, can effectively improve the data transmission capabilities of high-speed maneuver platform, increase reliability and life-span, satisfy the following application development of various platforms such as military aircraft, guided missile, satellite.
At home, the large-angle scanning phased array antenna will concentrate on frequency ranges such as L, S, X, yet there are no report in the Ka frequency range.Abroad, Ka frequency range large-angle scanning phased array antenna radiating element generally adopts waveguide, little band, dipole, slit, and microstrip array adopts the printed circuit form, and handling ease realizes, but loss and large-angle scanning poor-performing.Simultaneously, the open ended waveguide battle array needs circular polarizer, need to adopt screw, has increased loss, cost, design and process and assemble difficulty, and be difficult to realize plugging, replaceable, when constituting fairly large array, the development risk is bigger; Dipole submatrix circular polarization feed difficulty has increased processing and assembly difficulty.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of Ka frequency range large-angle scanning circular polarised array antenna of simple in structure, dependable performance is provided.
Technical solution of the present utility model is: a kind of Ka frequency range large-angle scanning circular polarised array antenna comprises cavity face, radiating element and hold-down nut; Radiating element is by the right-angled intersection oscillator, to plug-and-socket and coaxial the composition; Plug-and-socket is had the square platform of many seamed edges, and the Fang Tai lower end is a screw thread, and the screw thread inboard is the SMP interface; Radiating element inserts in the cavity face, fixes by screw thread and hold-down nut; Two slit Ba Lun that have symmetry on the coaxial outer conductor; Coaxial inner wire is fixedlyed connected with an oscillator in the right-angled intersection oscillator.
Described slit Ba Lun and cross oscillator are 36 degree angles.
The oscillator of described right-angled intersection oscillator adopts rectangular configuration, and the flakiness ratio of oscillator is designed to 5: 3.
The utility model compared with prior art beneficial effect is:
(1) the utility model adopts radiating element and cavity discrete design, radiating element side's platform, screw thread and the integrated design of SMP interface, by the radiating element produced in batches and cavity directly to slotting, realize with phase array in the interconnected of source module (extension set that phase array links to each other with front) arranged, solved the shortcoming of former screw and welding fit, realized directly plugging, replaceable, reduced development difficulty and cost.
(2) the utility model passes through the radiating element bottom to the side of the many seamed edges on plug-and-socket platform, with many seamed edges thread cavity of each cavity bottom of cavity face to inserting, realize radiating element fixing in cavity on the one hand, determine the relative direction of each radiating element in front on the other hand, solve in very little space the problem of welding and screw insufficient space simultaneously, satisfied Ka large-angle scanning front engineering realizability.
(3) the utility model is on coaxial outer conductor, by the change realization impedance matching of Ba Lun position, slit and direction.In the prior art, when similar single radiating element was used for low-frequency range, slit Ba Lun was in adjacent two middles that shake of coaxial outer conductor, and was 45 degree with oscillator.And two symmetrical slit Ba Lun of the utility model are near two adjacent length oscillators in four oscillators, and slit and oscillator be 36 degree angles, make antenna aperture can obtain standing wave preferably under less than the half-wavelength situation.
(4) four oscillators of the utility model adopt rectangular configuration, and the flakiness ratio of oscillator is designed to 5: 3, solve Ka frequency range small size square (or circular) oscillator and added man-hour, the problem on deformation that the punching press oscillator causes easily, thereby guarantee batch consistency and the precision of oscillator processing, reduced the difficulty of processing of oscillator.
(5) mentality of designing of the present utility model not only can be used for the design as the Ka band antenna, also can be used for the design of frequency range large-angle scanning array antennas such as Ku, K, EHF.
Description of drawings
Fig. 1 is the utility model front structural representation;
Fig. 2 is the radiative unit structure schematic diagram;
Fig. 3 is the radiating element cutaway view;
Fig. 4 (A) is the utility model radiating element antenna pattern simulation curve figure;
Fig. 4 (B) is the utility model radiating element axial ratio simulation curve;
Fig. 5 (A) is the antenna pattern simulation curve figure of the utility model array antenna;
Fig. 5 (B) is the radiating element axial ratio simulation curve of the utility model array antenna.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, array antenna of the present utility model is pack into the Ka frequency range circular polarization large-angle scanning array antennas of 64 cavity faces of 64 right-angled intersection oscillators.Comprise cavity face 1, radiating element 2 and hold-down nut 3.Cavity face 1 guarantees the one-way radiation of antenna, and cavity face 1 and hold-down nut 3 are realized the mount of 64 radiating elements 2.
Shown in Fig. 2,3, radiating element 2 is by right-angled intersection oscillator 4, constitute plug-and-socket 6 and coaxial 8.To plug-and-socket 6 side's of having platforms 11, square platform 11 lower ends is screw thread 12, and screw thread 12 inboards are SMP interface 13.Have two slit Ba Lun 5 of symmetry on coaxial 8 the outer conductor 9, slit Ba Lun 5 is near two adjacent length oscillators in four oscillators, and the slit is 36 with oscillator and spends angles.
The oscillator of right-angled intersection oscillator 4 of the present utility model adopts rectangular configuration, and its flakiness ratio is 5: 3.
Antenna of the present utility model is realized circular polarization by right-angled intersection oscillator 4; Realize impedance conversion by slit Ba Lun 5; By plug-and-socket 6 being finished 64 assemblings of radiating element 2 on cavity face 1.To the square platform in the connection-peg 6 11 determine the direction of radiating elements 2,2 fixations of 12 pairs of radiating elements of screw thread, SMP interface 13 realize with the TR assembly directly to inserting.
The antenna of this structure will realize having wide angle in the Ka frequency range (± 60～70 degree two-dimentional circular cones) scan performance.The simulation curve of radiating element 2 as shown in Figure 3; 64 cell array antennas at ± 60 degree simulation curves as shown in Figure 4.The utlity model has characteristics such as scanning frequency height, scanning angle is wide, axial ratio is good as can be seen.
This antenna also can be applied in the above array antenna of Ku, particularly in the large-angle scanning phase array.This antenna not only can be used for the feed of array antenna, and this antenna itself also is broad beam, the circular polarization of a secondary function admirable, the miniature antenna of single-point feedback simultaneously, can be applied in airborne, missile-borne, the platform such as spaceborne.And little, in light weight owing to its volume, as to be particularly suitable for high-speed maneuver platform application, have simultaneously conformal with platform, the prompt change of wave beam is flexible, have stronger antijamming capability, can be applied to have very strong competitiveness in the platforms such as following advanced opportunity of combat, unmanned plane.
Certainly, under the situation that does not change its function, the equivalent transformation that carries out or alternative also falls into protection range of the present utility model to each building block of the present utility model, position relation and connected mode.
The unspecified part of the utility model specification belongs to general knowledge as well known to those skilled in the art.
Claims (3)
1. a Ka frequency range large-angle scanning circular polarised array antenna is characterized in that: comprise cavity face (1), radiating element (2) and hold-down nut (3); Radiating element (2) is by right-angled intersection oscillator (4), form plug-and-socket (6) and coaxial (8); To plug-and-socket (6) side's of having platform (11), square platform (11) lower end is screw thread (12), and screw thread (12) inboard is SMP interface (13); Radiating element (2) inserts in the cavity face (1), and is fixing by screw thread (12) and hold-down nut (3); Two the slit Ba Lun (5) that have symmetry on the outer conductor of coaxial (8) (9); The inner wire of coaxial (8) (7) is fixedlyed connected with an oscillator in the right-angled intersection oscillator (4).
2. a kind of Ka frequency range large-angle scanning circular polarised array antenna according to claim 1 is characterized in that: described slit Ba Lun (5) is 36 degree angles with the cross oscillator.
3. a kind of Ka frequency range large-angle scanning circular polarised array antenna according to claim 1 is characterized in that: the oscillator of described right-angled intersection oscillator (4) adopts rectangular configuration, and the flakiness ratio of oscillator is 5: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206456725U CN201904433U (en) | 2010-12-01 | 2010-12-01 | Circular polarization array antenna capable of realizing wide-angle scanning at Ka (K-above) frequency range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206456725U CN201904433U (en) | 2010-12-01 | 2010-12-01 | Circular polarization array antenna capable of realizing wide-angle scanning at Ka (K-above) frequency range |
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| Publication Number | Publication Date |
|---|---|
| CN201904433U true CN201904433U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206456725U Expired - Lifetime CN201904433U (en) | 2010-12-01 | 2010-12-01 | Circular polarization array antenna capable of realizing wide-angle scanning at Ka (K-above) frequency range |
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| CN (1) | CN201904433U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931468A (en) * | 2012-11-16 | 2013-02-13 | 上海宇航系统工程研究所 | Double-frequency quadrifilar helix antenna |
| CN106184707A (en) * | 2016-07-27 | 2016-12-07 | 深圳市天鼎微波科技有限公司 | A kind of unmanned plane structure with antenna assembly |
| CN106299584A (en) * | 2015-06-01 | 2017-01-04 | 北京空间飞行器总体设计部 | Spaceborne phased array front support system |
| CN107968678A (en) * | 2017-11-27 | 2018-04-27 | 长光卫星技术有限公司 | A kind of New Satellite high speed data transmission system |
| CN109950702A (en) * | 2019-03-26 | 2019-06-28 | 北京遥测技术研究所 | A kind of low-loss broad beam circular polarisation waveguide cross gap antenna |
| CN110611157A (en) * | 2019-08-28 | 2019-12-24 | 西安空间无线电技术研究所 | Feed array position holding structure and method in temperature-varying environment |
| CN114649692A (en) * | 2022-05-19 | 2022-06-21 | 东南大学 | Dual-frequency dual-circular polarization transmission array antenna with independently controllable wave beams |
-
2010
- 2010-12-01 CN CN2010206456725U patent/CN201904433U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931468A (en) * | 2012-11-16 | 2013-02-13 | 上海宇航系统工程研究所 | Double-frequency quadrifilar helix antenna |
| CN102931468B (en) * | 2012-11-16 | 2015-03-11 | 上海宇航系统工程研究所 | Double-frequency quadrifilar helix antenna |
| CN106299584A (en) * | 2015-06-01 | 2017-01-04 | 北京空间飞行器总体设计部 | Spaceborne phased array front support system |
| CN106299584B (en) * | 2015-06-01 | 2019-09-13 | 北京空间飞行器总体设计部 | Spaceborne phased array front support system |
| CN106184707A (en) * | 2016-07-27 | 2016-12-07 | 深圳市天鼎微波科技有限公司 | A kind of unmanned plane structure with antenna assembly |
| CN107968678A (en) * | 2017-11-27 | 2018-04-27 | 长光卫星技术有限公司 | A kind of New Satellite high speed data transmission system |
| CN109950702A (en) * | 2019-03-26 | 2019-06-28 | 北京遥测技术研究所 | A kind of low-loss broad beam circular polarisation waveguide cross gap antenna |
| CN110611157A (en) * | 2019-08-28 | 2019-12-24 | 西安空间无线电技术研究所 | Feed array position holding structure and method in temperature-varying environment |
| CN114649692A (en) * | 2022-05-19 | 2022-06-21 | 东南大学 | Dual-frequency dual-circular polarization transmission array antenna with independently controllable wave beams |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |