CN106329115A - Method for reducing height of SCIM (satellite communication in motion) multi-subarray antenna - Google Patents
Method for reducing height of SCIM (satellite communication in motion) multi-subarray antenna Download PDFInfo
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- CN106329115A CN106329115A CN201610771043.9A CN201610771043A CN106329115A CN 106329115 A CN106329115 A CN 106329115A CN 201610771043 A CN201610771043 A CN 201610771043A CN 106329115 A CN106329115 A CN 106329115A
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- antenna
- submatrix
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a method for reducing the height of an SCIM (satellite communication in motion) multi-subarray antenna, and the method comprises the following steps: enabling the radiation unit of each sub-array of the multi-subarray antenna to be connected with time delay lines with different lengths, enabling the direction of a sub-array wave beam and the normal direction of a subarray plane to form an inclined angle gamma, employing delay compensation for a wave path difference of an incoming signal in the gamma direction between the subarray antenna units, and enabling the overlapping result of the signals of all antenna units to be maximum in the gamma direction; adjusting the width of each subarray unit in the multi-subarray antenna, wherein the widths of all subarray units in the multi-subarray antenna are increased gradually. The method can effectively reduce the height of the SCIM multi-subarray antenna, and the SCIM multi-subarray antenna is good in performance.
Description
Technical field
The invention belongs to satellite communication system antenna design techniques field, relate to a kind of reduction satellite communication in moving multiple submatrixes sky
The method of line height.
Background technology
Along with the fast development of communication technology of satellite, satellite communications system become one realize broadband mobile lead to
The effective means of letter, plays very important in the fields such as Emergent Public Events process, emergency command, information transmission in real time
Effect.
Communication in moving needs the top being installed on carrier could realize with the geo-synchronous orbit satellite in overhead, equator to lead to
Letter, owing to the antenna height of traditional parabola communication in moving system is higher, the mobility of carrier and by property by windage and culvert
The restriction of the factor such as hole, bridge height.Change to this end, parabola communication in moving earth station often carries out structure to carrier when application
Filling, some systems the most also to be dug a hole on roof or to slot, and the method destroys the integrity of carrier so that system
Popularization and application are very restricted.
Low profile communication in moving need not dig a hole at carrier top or slot, and changes carrier outward appearance few, can keep outside carrier
The integrity seen；It addition, the windage produced during installing the carrier movement of low profile communication in moving is little, run into the bridge of land
When beam, culvert, passability is good；The combat unit battlefield using low profile communication in moving in battlefield is disguised strong, information transmission security
Property high, can greatly strengthen its battlefield survival.
Current low profile communication in moving major part uses plate aerial.The development of comprehensive external plate aerial communication in moving, reduces
The technical method of plate aerial communication in moving height mainly have electronically phased array system, wave beam pre-tilt technology, multiple submatrixes technology and
Machinery phased array etc., wherein the plate aerial cost of electronically phased array system is higher, and wave beam pre-tilt technology typically can only be suitable for
In the countries and regions that latitude span is less, be not suitable for China's national situation, and multiple submatrixes technology is the most external low profile flat board sky
Line communication in moving reduces the Major Technology of antenna height.
Compared with general phased array antenna, each submatrix in multiple submatrixes phased array antenna is the most at grade.By
In the discreteness of multiple submatrixes phased array antenna bore, the design and optimization of its antenna-feedback system also exists many difficult points.
The situation of published satellite communication in moving multiple submatrixes antenna technology is as follows:
1, the adjustable distance multiple submatrixes phased array antenna that pitching machine is swept.The MIJET antenna of Starling company of Israel and
The SpeedRay3000 antenna for satellite communication in motion of RaySat company of the U.S. broadly falls into this type, the submatrix spacing of such antenna and submatrix
The angle of pitch can be adjusted along with the elevation angle, and its antenna performance is good, and cost is high, typically can realize high-speed bidirectional communication.Due to regulation
The cost of submatrix spacing can the increase at double along with increasing of submatrix number, the therefore submatrix negligible amounts used by such antenna,
Major lobe of directional diagram wider width.
2, the constant spacing multiple submatrixes phased array antenna that pitching machine is swept.The MANT antenna of Korea S ETRI and U.S. RaySat are public
The SpeedRay1000 antenna for satellite communication in motion of department broadly falls into this type, and wherein SpeedRay1000 is a single communication in moving system received
System, its antenna structure is essentially identical with SpeedRay3000 communication in moving, but its price is only the 1/3 of SpeedRay3000 communication in moving
Left and right.Owing to submatrix spacing is fixed, such antenna carry out pitching dimension scanning time antenna effective aperture can change, and adjustable between
Away from antenna compare, its antenna performance is poor, but antenna cost is relatively low.
3, the constant spacing multiple submatrixes phased array antenna that pitching electricity is swept.The Hisat antenna of Switzerland JAST just belongs to this kind
Type, owing to using electron scanning in pitching dimension, the main lobe width of subarray patterns can affect the sweep limits of antenna, therefore should
Submatrix quantity used by class antenna is more, submatrix narrower width.
In sum, the submatrix of above-mentioned three class antennas all uses the uniform array of equal in width, and this design cannot effectively be dropped
The peak side-lobe of low antenna, is unfavorable for improving the performance of antenna, it is therefore desirable to a kind of star communication in moving multiple submatrixes antenna height is relatively low,
The technology of function admirable.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, it is provided that a kind of reduction satellite communication in moving multiple submatrixes
The method of antenna height, the method can effectively reduce the height of satellite communication in moving multiple submatrixes antenna, and satellite communication in moving
The function admirable of multiple submatrixes antenna.
For reaching above-mentioned purpose, the method for reduction satellite communication in moving multiple submatrixes antenna height of the present invention includes following
Step:
To the delay line that each radiating element connecting length of the submatrix in multiple submatrixes antenna is different, make the sensing of submatrix wave beam with
The angle in submatrix plane normal direction is γ, and the wave path-difference that the incoming wave signal in γ direction is between submatrix antenna element uses and prolongs
Compensate late, after making each antenna element Signal averaging, reach maximum in γ direction；
The width of each submatrix unit in regulation multiple submatrixes antenna, wherein, in multiple submatrixes antenna the width of each submatrix unit by
Cumulative greatly.
The incoming wave signal in γ direction phase difference between the first antenna unit and the n-th antenna element of submatrixnFor: φn
=(n-1) kdxSin γ, n=1 ... N, then the directional diagram of submatrix antenna is:
Wherein, θ is the angle of incoming wave signal and z-axis,Angle for incoming wave signal Yu x-axis；Dx is to radiate on x-axis direction
The spacing of unit, dy is the spacing of radiating element on axle y direction, and k is the free space wave number of incoming wave signal, N and M is respectively sky
Array number on line plate plate width direction and the array number of antenna plate plate length direction, an(n=1...N), am(m=1...M) it is respectively
On antenna plate plate width direction array element separate the separation weight coefficient of array element on weight coefficient and antenna plate plate length direction,
For array element directional diagram, exp is exponential function.
The method have the advantages that
The method of reduction satellite communication in moving multiple submatrixes antenna height of the present invention uses submatrix pre-tilt method, passes through
To the delay line that each radiating element connecting length of the submatrix in multiple submatrixes antenna is different, make sensing and the submatrix plane of submatrix wave beam
The angle of normal direction is γ, makes antenna plate reduce with the angle β of horizontal plane, thus reduces the height of antenna, the simultaneously present invention
The most wide submatrix technology is used to improve the performance of multiple submatrixes antenna, concrete, by each submatrix unit in regulation multiple submatrixes antenna
Width, wherein, in multiple submatrixes antenna, the width of each submatrix unit is gradually increased, it should be noted that in multiple submatrixes antenna,
The peak sidelobe of multiple submatrixes antenna is to be determined by the spacing of each submatrix unit, and the present invention the most wide submatrix technology of employing can
The antenna radiation pattern periodicity caused effectively to overcome submatrix unit to be equidistantly distributed, advantageously reduces satellite communication in moving multiple submatrixes
The peak sidelobe of antenna, and then improve the performance of multiple submatrixes antenna.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of neutron array pre-tilt method of the present invention；
Fig. 2 is the feeder network structure realizing submatrix pre-tilt method in the present invention；
Fig. 3 is the principle schematic of the most wide submatrix technology in the present invention；
The main lobe width change signal of antenna when Fig. 4 is first embodiment of the invention neutron array pre-tilt different angles
Figure；
When Fig. 5 is first embodiment of the invention neutron array pre-tilt different angles, the peak sidelobe change of antenna is shown
It is intended to；
The main lobe width change of multiple submatrixes antenna when Fig. 6 is to use the most wide submatrix technology in second embodiment of the invention
Schematic diagram；
The peak sidelobe of multiple submatrixes antenna when Fig. 7 is to use the most wide submatrix technology in second embodiment of the invention
Change schematic diagram；
Fig. 8 is the multiple submatrixes antenna radiation pattern using wide submatrix in second embodiment of the invention；
Fig. 9 is multiple submatrixes antenna radiation pattern during the most wide submatrix technology in second embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail:
With reference to Fig. 1, Fig. 2 and Fig. 3, the method for reduction satellite communication in moving multiple submatrixes antenna height of the present invention include with
Lower step:
To the delay line that each radiating element connecting length of the submatrix in multiple submatrixes antenna is different, make the sensing of submatrix wave beam with
The angle in submatrix plane normal direction is γ, and the wave path-difference that the incoming wave signal in γ direction is between submatrix antenna element uses and prolongs
Compensate late, after making each antenna element Signal averaging, reach maximum in γ direction；
The width of each submatrix unit in regulation multiple submatrixes antenna, wherein, in multiple submatrixes antenna the width of each submatrix unit by
Cumulative greatly.
The incoming wave signal in γ direction phase difference between the first antenna unit and the n-th antenna element of submatrixnFor: φn
=(n-1) kdxSin γ, n=1 ... N, then the directional diagram of submatrix antenna is:
Wherein, θ is the angle of incoming wave signal and z-axis,Angle for incoming wave signal Yu x-axis；Dx is to radiate on x-axis direction
The spacing of unit, dy is the spacing of radiating element on axle y direction, and k is the free space wave number of incoming wave signal, N and M is respectively sky
Array number on line plate plate width direction and the array number of antenna plate plate length direction, an(n=1...N), am(m=1...M) it is respectively
On antenna plate plate width direction array element separate the separation weight coefficient of array element on weight coefficient and antenna plate plate length direction,
For array element directional diagram, exp is exponential function.
Embodiment one
Submatrix array element quantity Q=10 of multiple submatrixes antenna, array element quantity N=2 in submatrix, submatrix space D=4.8cm,
Operating frequency f of antenna0=12.5GHz, the pitching sweep limits [20 °, 70 °] of antenna, the pre-tilting angle γ of submatrix unit
=0 °, 10 °, 20 ° and 40 °.
When α=40 °, if wave beam pre-tilting angle γ=10 °, then the height of antenna plate can reduce by 16%, and difference is pre-
Multiple submatrixes phased array antenna main lobe width and peak sidelobe under angle of inclination change as shown in Figures 4 and 5, submatrix pre-dumping
Tiltedly the main lobe width of multiple submatrixes antenna is affected little by technology, but peak antenna sidelobe level when can significantly reduce the elevation angle,
Be conducive to the lifting of antenna performance.During the high elevation angle, being affected by blocking between submatrix, peak sidelobe is improved not notable, pre-dumping
When rake angle is bigger also can lifting peak side-lobe, therefore the angle of wave beam pre-tilt is unsuitable excessive.
Embodiment two
Submatrix array element quantity Q=10 of multiple submatrixes antenna, array element distance dx=1.44cm, operating frequency of antenna f0=
12.5GHz, antenna pitching sweep limits [20 °, 70 °]:
A) when each submatrix unit is wide, Nq=2, q=1,2 ... 9,10, wherein, q is the sequence number of submatrix unit；
B) when the width increment exponential of each submatrix unit is 1, Nq=4, q=1,2；Nq=3, q=4,3；Nq=2, q=5,
6,7。
The array element total quantity using the multiple submatrixes antenna of the most wide submatrix technology is identical with the antenna of wide structure, i.e. antenna
Bore is consistent, and the antenna of present invention design has identical antenna gain, therefore its main lobe with the antenna of wide structure in theory
Width is essentially identical, main lobe width as shown in Figure 6；As can be known from Fig. 7, the most wide submatrix technology is used can to significantly reduce many
The peak sidelobe of submatrix antenna, peak side-lobe during the highest elevation angle.
Comparison diagram 8 and Fig. 9, uses the antenna structure of the most wide submatrix technology to overcome the cycle in submatrix element pattern
Property, significantly reduce the peak sidelobe of antenna.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every according to the present invention
Any simple modification, change and the equivalent structure change that above example is made by technical spirit, all still falls within skill of the present invention
In the protection domain of art scheme.
Claims (2)
1. the method reducing satellite communication in moving multiple submatrixes antenna height, it is characterised in that comprise the following steps:
To the delay line that each radiating element connecting length of the submatrix in multiple submatrixes antenna is different, make sensing and the submatrix of submatrix wave beam
The angle in plane normal direction is γ, and the wave path-difference that the incoming wave signal in γ direction is between submatrix antenna element uses and postpones to mend
Repay, after making each antenna element Signal averaging, reach maximum in γ direction；
The width of each submatrix unit in regulation multiple submatrixes antenna, wherein, in multiple submatrixes antenna, the width of each submatrix unit gradually increases
Greatly.
The method of reduction satellite communication in moving multiple submatrixes antenna height the most according to claim 1, it is characterised in that γ direction
Incoming wave signal phase difference between the first antenna unit and the n-th antenna element of submatrixnFor: φn=(n-1) kdxsin
γ, n=1...N, then the directional diagram of submatrix antenna is:
Wherein, θ is the angle of incoming wave signal and z-axis,Angle for incoming wave signal Yu x-axis；Dx is radiating element on x-axis direction
Spacing, dy is the spacing of radiating element on axle y direction, and k is the free space wave number of incoming wave signal, N and M is respectively antenna plate
Array number on plate width direction and the array number of antenna plate plate length direction, an(n=1...N), am(m=1...M) it is respectively antenna
On plate plate width direction array element separate the separation weight coefficient of array element on weight coefficient and antenna plate plate length direction,For battle array
Unit's directional diagram, exp is exponential function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771043.9A CN106329115A (en) | 2016-08-29 | 2016-08-29 | Method for reducing height of SCIM (satellite communication in motion) multi-subarray antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771043.9A CN106329115A (en) | 2016-08-29 | 2016-08-29 | Method for reducing height of SCIM (satellite communication in motion) multi-subarray antenna |
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| CN106329115A true CN106329115A (en) | 2017-01-11 |
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ID=57788390
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| CN201610771043.9A Pending CN106329115A (en) | 2016-08-29 | 2016-08-29 | Method for reducing height of SCIM (satellite communication in motion) multi-subarray antenna |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864309A (en) * | 1987-08-18 | 1989-09-05 | Hughes Aircraft Company | Microwave radiometer |
| CN1206230A (en) * | 1997-06-11 | 1999-01-27 | 英国太空防卫系统有限公司 | Wide bandwidth antenna arrays |
| US20090012768A1 (en) * | 2004-05-13 | 2009-01-08 | Seong-Ho Son | Method for deciding array spacing of array antenna by using genetic algorithm and array antenna having sofa structure with irregular array spacing |
| CN101916904A (en) * | 2010-08-04 | 2010-12-15 | 中国人民解放军第二炮兵工程学院 | Mobile satellite communication multi-subarray panel antenna array and optimization method thereof |
| CN105811113A (en) * | 2016-05-05 | 2016-07-27 | 桂林电子科技大学 | K-wave band microstrip patch antenna array |
-
2016
- 2016-08-29 CN CN201610771043.9A patent/CN106329115A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864309A (en) * | 1987-08-18 | 1989-09-05 | Hughes Aircraft Company | Microwave radiometer |
| CN1206230A (en) * | 1997-06-11 | 1999-01-27 | 英国太空防卫系统有限公司 | Wide bandwidth antenna arrays |
| US20090012768A1 (en) * | 2004-05-13 | 2009-01-08 | Seong-Ho Son | Method for deciding array spacing of array antenna by using genetic algorithm and array antenna having sofa structure with irregular array spacing |
| CN101916904A (en) * | 2010-08-04 | 2010-12-15 | 中国人民解放军第二炮兵工程学院 | Mobile satellite communication multi-subarray panel antenna array and optimization method thereof |
| CN105811113A (en) * | 2016-05-05 | 2016-07-27 | 桂林电子科技大学 | K-wave band microstrip patch antenna array |
Non-Patent Citations (1)
| Title |
|---|
| 林志强: "多子阵平板天线波束指向频率响应分析与固定长度延迟线应用", 《电子与信息学报》 * |
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Application publication date: 20170111 |