CN108155483A - Polarization tracking device - Google Patents
Polarization tracking device Download PDFInfo
- Publication number
- CN108155483A CN108155483A CN201810113699.0A CN201810113699A CN108155483A CN 108155483 A CN108155483 A CN 108155483A CN 201810113699 A CN201810113699 A CN 201810113699A CN 108155483 A CN108155483 A CN 108155483A
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- Prior art keywords
- layer
- polarization
- rotational structure
- tracking device
- circular polarisation
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention relates to field of antenna, disclose a kind of polarization tracking device, including the first rotational structure and the second rotational structure, first rotational structure includes First Line polarization layer and at least three circular polarisation layers, and the First Line polarization layer is coaxial to be arranged below at least three circular polarisation layer；The direction of the grizzly bar of each circular polarisation layer is identical；The First Line polarization layer is plane wire grid lines polarizer, and the angle between the grizzly bar direction of the plane wire grid lines polarizer and the grizzly bar direction of each circular polarizer is 45 °；Second rotational structure includes the second linear polarization layer and aerial radiation port, and the second linear polarization layer is arranged on the top of the aerial radiation port with the spacing of λ g/2；The coaxial top for being arranged on second rotational structure of first rotational structure, and relatively rotated with identical axle center.The structure of the polarization tracking device is simple, and loss is low, being capable of accurate tracking satellite polarization direction.
Description
Technical field
The present invention relates to field of antenna, more particularly to a kind of polarization tracking device.
Background technology
Beam scanning antennas is a kind of antenna or aerial array with high-gain performance, and this kind of antenna has very high in itself
Directional radiation properties, meanwhile, by changing operating mode, working condition, working frequency or the antenna attitude of antenna, can make
The greatest irradiation direction of antenna changes, so as to fulfill beam scanning.The purposes of beam scanning antennas is very extensive, especially
In terms of military and scientific research.Military radar, scientific research detecting devices and need what the system of satellite navigation and positioning used
Antenna equipment, it is necessary to have beam scanning characteristic.
It is also increasing in the application of satellite communication field as phased array antenna temperature is gradually promoted.Phased array antenna
With low section, high sweep speed (nanosecond), the form of antenna such as does not limit at advantages, but the cost of phased array antenna
Height, component parts are more, and each unit needs independent TR components.Antenna can be greatly improved if improving the gain of phased array antenna
Cost, therefore phased array antenna can not be known as high-gain aerial.Although the sweep speed of phased array antenna is fast, with scanning
The increase of angle, gain is on a declining curve, and wide-angle (60 °) swept gain declines apparent.
CTS (Continuous Transverse Stub continuously tangential minor matters) antenna is Hughes Aircraft Co of the U.S. earliest
It is proposed the 1990s, the form of antenna realizes radiation continuously to open the transverse slot of perforation on planar waveguide.VICTS days
Line is the CTS antennas of variable incidence, has simple planar structure, low cost compared to traditional " communication in moving " antenna.But due to feedback
Source structure is fixed, and antenna system adjustment pitch angle is realized by rotary radiation layer, and radiating layer tangentially saves direction and determines antenna
Polarization direction, therefore fixed in antenna elevation angle, antenna can not polarization direction identical with target satellite holding.
Chinese patent application No. is 201510902291.8 discloses a kind of wide band high-gain of parabolic reflector feed
Plate aerial can be scanned, but the antenna is only capable of radiation line polarization wave, but fail to realize polarizing control.
Application No. is 201611057972.X Chinese patent disclose one kind tear open submatrix feed VICTS defend exceedingly high line, should
Antenna provides that a kind of low section, high-gain, beam-scanning angles are big, radianting capacity it is strong defend exceedingly high line, but equally fail reality
Existing polarizing control.
Therefore, it is necessary to provide a kind of antenna assembly that can realize polarizing control.
Invention content
It, being capable of accurate tracking satellite polarization direction the purpose of the present invention is to provide a kind of polarization tracking device.
The present invention provides a kind of polarization tracking device, including the first rotational structure and the second rotational structure,
First rotational structure includes First Line polarization layer and at least three circular polarisation layers, and the First Line polarization layer is total to
Axis is arranged below at least three circular polarisation layer；The direction of the grizzly bar of each circular polarisation layer is identical；
The First Line polarization layer is plane wire grid lines polarizer, the grizzly bar direction of the plane wire grid lines polarizer with it is each
Angle between the grizzly bar direction of circular polarizer is 45 °；The distance between each adjacent circular polarisation layer, the First Line polarization layer
The distance between adjacent circular polarisation layer is λ g/4；Wherein λ g are the waveguide wavelength of electromagnetic wave in the medium；
Second rotational structure includes the second linear polarization layer and aerial radiation port, and the second linear polarization layer is with λ g/2
Spacing be arranged on the top of the aerial radiation port；
The coaxial top for being arranged on second rotational structure of first rotational structure, and turn so that identical axle center is opposite
It is dynamic.
In a preference, the circular polarisation layer is multilayer planar FSS structures.
In a preference, the circular polarisation layer is multilayer cambered surface FSS structures.
In a preference, the polarization structure type of the circular polarisation layer is meander line polarizer or Jerusalem pole
Change device.
In a preference, the polarization tracking device further includes one or more third linear polarization layers, coaxial setting
Between the First Line polarization layer and the second linear polarization layer.
In a preference, the distance between each adjacent linear polarization layer is λ/4, wherein, λ is electromagnetic wave free space
Wavelength.
In a preference, each linear polarization layer is relatively rotated with identical axle center.
In a preference, the third linear polarization layer is plane wire grid lines polarizer.
In a preference, the second linear polarization layer is plane wire grid lines polarizer.
In a preference, the second linear polarization layer rotates to change antenna beam pitch angle with aerial radiation layer
Degree, the pitch angle<At 40 °, first rotational structure is rotated with any angle；
The pitch angle>At 40 °, first rotational structure is directed toward with wiregrating in the First Line polarization layer with antenna
It is directed toward rotation in beam positional angle.
A large amount of technical characteristic has been recorded in the description of the present application, has been distributed in each technical solution, if to enumerate
If the combination (i.e. technical solution) for going out all possible technical characteristic of the application, it can so that specification is excessively tediously long.In order to keep away
Exempt from this problem, each technical characteristic disclosed in the application foregoing invention content, below in each embodiment and example
Each technical characteristic disclosed in disclosed each technical characteristic and attached drawing, can freely be combined with each other, each so as to form
The new technical solution (these technical solutions have been recorded in the present specification because being considered as) of kind, unless the group of this technical characteristic
Conjunction is technically infeasible.For example, disclosing feature A+B+C in one example, spy is disclosed in another example
A+B+D+E is levied, and feature C and D are the equivalent technologies means for playing phase same-action, it, can not as long as technically selecting a use
It can use simultaneously, feature E technically can be combined with feature C, then, the scheme of A+B+C+D should not when technology is infeasible
It is considered as having recorded, and the scheme of A+B+C+E should be considered as and be described.
Embodiment of the present invention compared with prior art, at least with following difference and effect：
The present invention can not realize polarization tracking for prior art VICTS antennas to satellite, cause under antenna effective gain
Drop, efficiency reduce the problem of, provide a kind of simple in structure, low-loss, can accurately tracking satellite polarization direction polarization with
Track device.
Polarization tracking apparatus structure of the present invention is simple, loss is small, is capable of the polarization direction of accurate tracking satellite.Institute
The polarization tracking device stated using circular polarisation layer and linear polarization layer coaxial disc structure, between layers using low-loss, low
The foamed material support of dielectric constant, realizes simple in structure, is easy to rotate, light weight, processed convenient for layering, polarization loss is small
Demand, suitable for large angle incidence wave beam.And loss is reduced by the optimization design to each polarization layer, increases polarization
Bandwidth.When the wave beam of linear polarization injects polarization tracking device from bottom to up with certain incident angle, polarization loss is better than
0.2dB, axis ratio are less than 2dB.
It is appreciated that within the scope of the present invention in, above-mentioned each technical characteristic of the invention and below (such as embodiment with
Example) in specifically describe each technical characteristic between can be combined with each other, so as to form new or preferred technical solution.Limit
In length, not repeated them here.
Description of the drawings
Fig. 1 is a kind of structure chart of polarization tracking device in the present invention；
Fig. 2 is a kind of structure chart of circular polarisation layer in the present invention；
Fig. 3 is the structure chart of plane wire grid lines polarizer in the present invention；
Fig. 4 is a kind of structure chart of the polarization tracking device with cambered surface circular polarisation layer in the present invention；
Fig. 5 is a kind of structure chart of the polarization tracking device with third linear polarization layer in the present invention；
Fig. 6 is a kind of structure chart for the polarization tracking device for removing circular polarisation layer in the present invention；
Fig. 7 compares datagram for a kind of axis of Planning Tracking Unite in the present invention.
Specific embodiment
In the following description, in order to make the reader understand this application better, many technical details are proposed.But this
Even if the those of ordinary skill in field is appreciated that without these technical details and many variations based on the following respective embodiments
And modification, it can also realize the application technical solution claimed.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with implementation of the attached drawing to the present invention
Mode is described in further detail.
The application embodiment is related to a kind of polarization tracking device, and Fig. 1 is a kind of knot of polarization tracking device in the present invention
Composition.As shown in Figure 1, the polarization tracking device includes the first rotational structure and the second rotational structure, the first rotational structure includes
First Line polarization layer and at least three circular polarisation layers, First Line polarization layer is coaxial to be arranged below at least three circular polarisation layers；Fig. 2
For the structure chart of circular polarisation layer a kind of in the present invention；The direction of the grizzly bar of each circular polarisation layer is identical；
First Line polarization layer is plane wire grid lines polarizer, the grizzly bar of plane wire grid lines polarizer and the grid of each circular polarizer
Angle between item is 45 °；The grizzly bar direction of the plane wire grid lines polarizer and grizzly bar direction of circular polarizer is at 45 ° or -45 ° of sides
To placement；45 ° are spent when placing for left-hand circular polarization, -45 for right-handed circular polarization when placing.Between each adjacent circular polarisation layer away from
It is λ from the distance between, First Line polarization layer and adjacent circular polarisation layerg/4；Wherein λgFor the waveguide of electromagnetic wave in the medium
Wavelength；Foam or dielectric-slab are filled between First Line polarization layer and adjacent circular polarisation layer.
Second rotational structure includes the second linear polarization layer and aerial radiation port, and the second linear polarization layer is with λg/ 2 spacing is set
It puts in the top of aerial radiation port；Filled and process or dielectric-slab between second linear polarization layer and aerial radiation port.
The coaxial top for being arranged on the second rotational structure of first rotational structure, and relatively rotated with identical axle center.
In one embodiment, circular polarisation layer is multilayer planar FSS structures, and Fig. 2 is a kind of structure chart of circular polarisation layer.
In one embodiment, circular polarisation layer is multilayer cambered surface FSS structures, and Fig. 4 is a kind of with cambered surface circular polarisation layer
The structure chart of polarization tracking device.
In one embodiment, the polarization structure type of circular polarisation layer is meander line polarizer or Jerusalem polarization
Device.
In one embodiment, which further includes one or more third linear polarization layers, coaxial to be arranged on
Between First Line polarization layer and the second linear polarization layer, the distance between each adjacent linear polarization layer is λ/4, wherein, λ is electromagnetic wave
The wavelength of free space；And each linear polarization layer is relatively rotated with identical axle center.A kind of polarization with third linear polarization layer with
The structure of track device is as shown in Figure 5.
In one embodiment, the second linear polarization layer and third linear polarization layer are plane wire grid lines polarizer, and structure is such as
Shown in Fig. 3.
In one embodiment, the second linear polarization layer rotates to change antenna beam pitch angle with aerial radiation layer, bows
The elevation angle<At 40 °, the first rotational structure is rotated with any angle；
Pitch angle>At 40 °, the first rotational structure is directed toward with wiregrating in First Line polarization layer and is directed toward with antenna beam azimuth angle
Rotation.
Polarization tracking device requires to work in pitch angle>It, can be by the multilayer planar FSS of circular polarisation layer during 75 ° of scene
Structure is changed to cambered surface FSS structures and the first rotational structure uses pitch angle>Working method at 40 °.
When polarization tracking device works in big azimuthal special screne, i.e. the first rotational structure and the second rotational structure phase
To rotational angle>At 45 °, third rotational structure should be added between the first rotational structure and the second rotational structure.Third rotates
Structure is the plane wire grid construction identical with the second linear polarization layer, third rotational structure and the first rotational structure and the second rotation knot
Structure is separated by λ/4 and is filled with air.Third rotational structure is consistent with the first rotational structure rotation direction, and third rotational structure
Relative rotation angle with the second rotational structure is the first rotational structure and the half of the second rotational structure relative rotation angle.
In one embodiment, when the work of polarization tracking device is with linear polarization scene, by the circle in the first rotational structure
Polarizer removes, and retains First Line polarization layer, the second linear polarization layer and third rotational structure.First rotational structure rotate to
Satellite polarization direction is consistent, and third rotational structure rotation angle relatively rotates angle for the first rotational structure and the second rotational structure
Half.A kind of structure for the polarization tracking device for removing circular polarisation layer is as shown in Figure 6.
In one embodiment, the axis of Planning Tracking Unite is than data as shown in fig. 7, wherein, and ordinate is axis ratio, horizontal seat
Pitch angle is designated as, in the case of large pitching angle, axis ratio is less than 2dB.
It should be noted that in the application documents of this patent, relational terms such as first and second and the like are only
For distinguishing one entity or operation from another entity or operation, without necessarily requiring or implying these entities
Or there are any actual relationship or orders between operation.Moreover, term " comprising ", "comprising" or its any other
Variant is intended to non-exclusive inclusion, so that process, method, article or equipment including a series of elements are not only
Including those elements, but also including other elements that are not explicitly listed or further include as this process, method, object
Product or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including one ", not
Also there are other identical elements in the process including element, method, article or equipment for exclusion.The application documents of this patent
In, if it is mentioned that certain behavior is performed according to certain element, then refers to perform the meaning of the behavior according at least to the element, including
Two kinds of situations：The behavior is performed according only to the element and the behavior is performed according to the element and other elements.
All references mentioned in the present invention is incorporated herein by reference, independent just as each document
It is incorporated as with reference to such.In addition, it should also be understood that, after reading the above teachings of the present invention, those skilled in the art can
To be made various changes or modifications to the present invention, such equivalent forms equally fall within the application range claimed.
Claims (10)
1. a kind of polarization tracking device, which is characterized in that including the first rotational structure and the second rotational structure,
First rotational structure includes First Line polarization layer and at least three circular polarisation layers, and the First Line polarization layer is coaxial to be set
It puts below at least three circular polarisation layer；The direction of the grizzly bar of each circular polarisation layer is identical；
The First Line polarization layer is plane wire grid lines polarizer, the grizzly bar direction of the plane wire grid lines polarizer and each entelechy
The angle changed between the grizzly bar direction of device is 45 °；The distance between each adjacent circular polarisation layer, the First Line polarization layer and phase
The distance between adjacent circular polarisation layer is λg/4；Wherein λgFor the waveguide wavelength of electromagnetic wave in the medium；
Second rotational structure includes the second linear polarization layer and aerial radiation port, and the second linear polarization layer is with λgBetween/2
Away from the top for being arranged on the aerial radiation port；
The coaxial top for being arranged on second rotational structure of first rotational structure, and relatively rotated with identical axle center.
2. polarization tracking device according to claim 1, which is characterized in that the circular polarisation layer is multilayer planar FSS structures.
3. polarization tracking device according to claim 1, which is characterized in that the circular polarisation layer is multilayer cambered surface FSS structures.
4. polarization tracking device according to claim 1, which is characterized in that the polarization structure type of the circular polarisation layer is bent
Broken line polarizer or Jerusalem polarizer.
5. polarization tracking device according to claim 1, which is characterized in that one or more third linear polarization layers are further included,
It is coaxial to be arranged between the First Line polarization layer and the second linear polarization layer.
6. polarization tracking device according to claim 5, which is characterized in that the distance between each adjacent linear polarization layer for λ/
4, wherein, λ is the wavelength of electromagnetic wave free space.
7. polarization tracking device according to claim 5, which is characterized in that each linear polarization layer is relatively rotated with identical axle center.
8. polarization tracking device according to claim 5, which is characterized in that the third linear polarization layer is plane wire grid lines pole
Change device.
9. polarization tracking device according to claim 1, which is characterized in that the second linear polarization layer is plane wire grid lines pole
Change device.
10. according to polarization tracking device described in claim 1-9, which is characterized in that the second linear polarization layer is with aerial radiation
Layer rotates to change antenna beam pitch angle, the pitch angle<At 40 °, first rotational structure is turned with any angle
Turn is moved；
The pitch angle>At 40 °, first rotational structure is directed toward with wiregrating in the First Line polarization layer with antenna beam
It is directed toward rotation in azimuth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113699.0A CN108155483B (en) | 2018-02-05 | 2018-02-05 | Polarization tracking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113699.0A CN108155483B (en) | 2018-02-05 | 2018-02-05 | Polarization tracking device |
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| CN108155483B CN108155483B (en) | 2023-07-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361066A (en) * | 2018-11-15 | 2019-02-19 | 北京遥感设备研究所 | A kind of polarization rotary system of all-metal structure |
| CN110137689A (en) * | 2019-06-17 | 2019-08-16 | 中国电子科技集团公司第二十九研究所 | A kind of circular polarizer that polarization is changeable |
| EP3716405A1 (en) * | 2019-03-29 | 2020-09-30 | ThinKom Solutions, Inc. | Linear-to-cp polarizer with enhanced performance in victs antennas |
| CN111864388A (en) * | 2020-06-24 | 2020-10-30 | 宁波大学 | Composite tracking method of VICTS antenna |
| US20210151901A1 (en) * | 2019-11-20 | 2021-05-20 | Thinkom Solutions, Inc. | Wide-scan-capable polarization-diverse polarizer with enhanced switchable dual-polarization properties |
| CN113224546A (en) * | 2021-04-19 | 2021-08-06 | 北京邮电大学 | Polar modulator |
| CN113871855A (en) * | 2021-09-24 | 2021-12-31 | 正成卫星网络集团有限公司 | Satellite payload machinery phased array antenna |
| CN115986422A (en) * | 2022-12-02 | 2023-04-18 | 成都知融科技有限公司 | Linear polarization tracking implementation method of phased array antenna |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361066A (en) * | 2018-11-15 | 2019-02-19 | 北京遥感设备研究所 | A kind of polarization rotary system of all-metal structure |
| EP3716405A1 (en) * | 2019-03-29 | 2020-09-30 | ThinKom Solutions, Inc. | Linear-to-cp polarizer with enhanced performance in victs antennas |
| US20200313303A1 (en) * | 2019-03-29 | 2020-10-01 | ThinKom Solutions, Inc | Linear-to-cp polarizer with enhanced performance in victs antennas |
| IL273296B2 (en) * | 2019-03-29 | 2023-06-01 | Thinkom Solutions Inc | Linear-to-cp polarizer with enhanced performance in victs antennas |
| US10931024B2 (en) * | 2019-03-29 | 2021-02-23 | Thinkom Solutions, Inc. | Linear-to-CP polarizer with enhanced performance in VICTS antennas |
| CN110137689A (en) * | 2019-06-17 | 2019-08-16 | 中国电子科技集团公司第二十九研究所 | A kind of circular polarizer that polarization is changeable |
| US20210151901A1 (en) * | 2019-11-20 | 2021-05-20 | Thinkom Solutions, Inc. | Wide-scan-capable polarization-diverse polarizer with enhanced switchable dual-polarization properties |
| US11616309B2 (en) * | 2019-11-20 | 2023-03-28 | Thinkom Solutions, Inc. | Wide-scan-capable polarization-diverse polarizer with enhanced switchable dual-polarization properties |
| CN111864388B (en) * | 2020-06-24 | 2022-01-18 | 宁波大学 | Composite tracking method of VICTS antenna |
| CN111864388A (en) * | 2020-06-24 | 2020-10-30 | 宁波大学 | Composite tracking method of VICTS antenna |
| CN113224546A (en) * | 2021-04-19 | 2021-08-06 | 北京邮电大学 | Polar modulator |
| CN113871855A (en) * | 2021-09-24 | 2021-12-31 | 正成卫星网络集团有限公司 | Satellite payload machinery phased array antenna |
| CN115986422A (en) * | 2022-12-02 | 2023-04-18 | 成都知融科技有限公司 | Linear polarization tracking implementation method of phased array antenna |
| CN115986422B (en) * | 2022-12-02 | 2023-06-23 | 成都知融科技有限公司 | Linear polarization tracking implementation method of phased array antenna |
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