CN201773935U - Multi-subarray flat plate antenna array for mobile satellite communication - Google Patents
Multi-subarray flat plate antenna array for mobile satellite communication Download PDFInfo
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- CN201773935U CN201773935U CN2010202823848U CN201020282384U CN201773935U CN 201773935 U CN201773935 U CN 201773935U CN 2010202823848 U CN2010202823848 U CN 2010202823848U CN 201020282384 U CN201020282384 U CN 201020282384U CN 201773935 U CN201773935 U CN 201773935U
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- plate aerial
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- flat plate
- satellite communication
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Abstract
The utility model discloses a multi-subarray flat plate antenna array for mobile satellite communication, which comprises a plurality of flat plate antenna subarrays, an antenna turntable and a plurality of feed line systems respectively connected between radiation units of all the flat plate antenna subarrays and signal receiving-dispatching ports, wherein the plurality of the flat plate antenna subarrays are mounted on the antenna turntable in parallel, and the target elevation angles of the flat plate antenna subarrays against a target satellite are the same; the feed line systems comprise phase shifters connected with the signal receiving-dispatching ports and a plurality of sets of delay lines connected between the radiation units of the flat plate antenna subarrays and the phase shifters; and the number of the sets of the delay lines is the same with the number of scanning subdistricts after carrying out uniform district division on a scanning range of the flat plate antenna subarrays. The multi-subarray flat plate antenna array is simple in structure, light in weight, low in height and low in cost and is convenient to mount and layout; and the adopted optimization method is reasonable in design and convenient in implementation and solves the two major practical problems of property deterioration and side-lobe level lift of an antenna directional pattern of the multi-subarray flat plate antenna array and reduction in instantaneous signal bandwidth of antennas.
Description
Technical field
The utility model relates to a kind of mobile satellite communication multiple submatrixes antenna array, especially relates to a kind of mobile satellite communication multiple submatrixes panel antenna array.
Background technology
The communication in moving satellite communication system is meant that mobile vehicle (for example automobile, train, aircraft, steamer etc.) is realized and the system of target satellite (static or stationary satellite, i.e. geosynchronous satellite) real time communication in quick running.In the real work,, just must adopt high-gain aerial because target satellite will be realized the multimedia communication of high bit rate between satellite and ground carrier apart from the distance on ground far (about 40,000 kilometers).Because the beamwidth of this antenna is very narrow, guarantee carrier can be normally in the fast moving process and incessantly with satellite communication, then must make its antenna beam all the time exactly to satelloid.Mobile satellite communication can be divided into two classes substantially by the antenna type that it adopted: reflector antenna communication in moving and plate aerial communication in moving.At present, the communication in moving system of domestic development all is the reflector antenna communication in moving mostly, and its volume is bigger, and antenna height is higher, can not satisfy the use under the vehicle environment fully, nowadays the height problem of antenna has greatly limited the popularization of communication in moving satellite communication system.By contrast, the plate aerial communication in moving is because its structural advantage can keep higher antenna gain under very low antenna height situation.
The multiple submatrixes technology is a kind of main method that the plate aerial communication in moving reduces antenna height.Because the discrete bore of multiple submatrixes panel antenna array itself, the performance of antenna has been subjected to very big influence, and minor level is higher, because the aperture transit time behind the branch plate is longer, makes that the instantaneous signal bandwidth of antenna is less simultaneously.To sum up, the plate aerial communication in moving has the clear superiority on the height, can satisfy various mobile vehicles to its miniaturization and the easily instructions for use of installation, compare with single plate aerial, the multiple submatrixes panel antenna array mainly brings two problems: one is antenna pattern characteristic variation and minor level lifting, and another is that the instantaneous signal bandwidth of antenna diminishes.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of mobile satellite communication multiple submatrixes panel antenna array is provided, it is simple in structure, in light weight, highly low, cost is low and laying is installed conveniently, the optimization method that is adopted reasonable in design and realize convenient, the instantaneous signal bandwidth that can effectively solve the antenna pattern characteristic variation of multiple submatrixes panel antenna array and minor level lifting and the antenna two big practical problems that diminish.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of mobile satellite communication multiple submatrixes panel antenna array: the antenna rotating platform of comprise a plurality of plate aerial submatrixs, installing for a plurality of described plate aerial submatrixs and be connected to the radiating element of each plate aerial submatrix and a plurality of feeder systems between the signal transmitting and receiving port, and the target elevation of a plurality of described plate aerial submatrixs are installed in parallel on the antenna rotating platform and a plurality of described plate aerial submatrix aims at the mark satellite is all identical; The phase shifter that described feeder system comprises and described signal transmitting and receiving port joins and be connected on the radiating element of plate aerial submatrix and the many covers delay line between the phase shifter, the quantity of described plate aerial submatrix are that the spacing between Q and adjacent two the plate aerial submatrixs is d
i, wherein i=1,2,3...Q-1, and d
iRepresent in Q the plate aerial submatrix spacing between i plate aerial submatrix and i+1 the plate aerial submatrix; The tricks of described delay line with the sweep limits of plate aerial submatrix is carried out even subregion after scanning subregion number identical.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array is characterized in that: described antenna rotating platform comprises support and by the rack-mount rotating disk of rotating shaft, a plurality of described plate aerial submatrixs are installed on the rotating disk.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array, it is characterized in that: described feeder system also comprise low noise amplifier and be connected on phase shifter and described receiver port between power combiner, described low noise amplifier is connected between the radiating element and delay line of plate aerial submatrix.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array is characterized in that: comprise a plurality of antenna elements that are operated on the different frequency range in the described plate aerial submatrix.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array, it is characterized in that: described phase shifter joins with the exciter of its phase-shift phase being controlled adjustment, described exciter and the beam-controller of being controlled by master controller join, and described beam-controller and described exciter are formed the pitch control subsystem unit of the pitch orientation of plate aerial submatrix being controlled in the electric scanning mode.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array, it is characterized in that: the azimuth axis that is installed on the plate aerial submatrix joins by transmission mechanism and the azimuth-drive motor of being controlled by servo controller, described servo controller and master controller join and are controlled by master controller, described azimuth-drive motor and described servo controller join, and the control of azimuth unit of described servo controller in the mechanical scanning mode azimuth direction of plate aerial submatrix being controlled.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array, it is characterized in that: on the pitching of a plurality of described plate aerial submatrixs dimension institute to comprise the quantity of antenna element identical, the spacing that all antenna elements on the pitching dimension of each plate aerial submatrix are adjacent two antenna elements that the pitching of even laying and a plurality of described plate aerial submatrixs ties up is all identical.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array is characterized in that: the luffing angle of a plurality of described plate aerial submatrixs is all identical and all immobilize.
Above-mentioned mobile satellite communication multiple submatrixes panel antenna array, it is characterized in that: also comprise by transmission mechanism and the pitching motor that is installed in that pitch axis on the plate aerial submatrix joins and controls by servo controller, and described pitching motor and described servo controller join, and described servo controller and master controller join and controlled by master controller.
The utility model compared with prior art has the following advantages:
1, simple in structure, the volume low height is low, in light weight, cost is lower and result of use is good, the feeder system of antenna comprises phase shifter and delay line at least.Wherein phase shifter is used to adjust the phase shift value of each submatrix, realizes that the signal of multiple submatrixes antenna is synthetic; Delay line is used to improve the instantaneous signal bandwidth of antenna.
2, laying is installed conveniently, can be easily installed on the various mobile vehicles.
3, optimization method is reasonable in design, it is convenient to realize, the instantaneous signal bandwidth that is primarily aimed at the antenna pattern characteristic variation of multiple submatrixes panel antenna array and minor level lifting and the antenna two large problems that diminishes is optimized, by adopting optimized Algorithm that the submatrix spacing of multiple submatrixes panel antenna array is optimized design, to reduce the minor level of antenna, improve antenna performance; By in the feeder network of antenna, adding many cover delay lines, the beam scanning scope of antenna is carried out subregion, and corresponding employing switching-beam technology improves the instantaneous signal bandwidth of antenna simultaneously.Submatrix spacing in the multiple submatrixes panel antenna array after the optimization is not general proportional spacing, but adopts optimized Algorithm that the submatrix spacing of multiple submatrixes panel antenna array is optimized design.When carrying out spacing optimization, by the minimum value of submatrix spacing is set, reach and prevent the practical problem of blocking mutually between submatrix, and when carrying out spacing optimization, need the antenna pattern in the whole sweep limits of consideration, to sum up, be the peak sidelobe (PSLL) of improving antenna, adopt optimized Algorithm that the submatrix spacing of antenna is optimized; In order to prevent blocking mutually between submatrix, must set the minimum value of submatrix spacing; The spacing sum D of antenna submatrix influences the size of multiple submatrixes panel antenna array simultaneously, and therefore carrying out the optimization of submatrix spacing needs under the situation that submatrix spacing sum D fixes, and promptly must satisfy the bore constraint.
Simultaneously,, need to adopt the identical delay device of group delay, adopt many cover delay lines can obviously improve the instantaneous signal bandwidth of antenna for improving the instantaneous signal bandwidth of multiple submatrixes panel antenna array.For this reason, the sweep limits of antenna is carried out subregion, adopt a cover delay line in each subregion, this is called the switching-beam technology.On partition method, can adopt the identical principle of subregion range size to carry out; And the length of delay line is chosen and can be reached minimum principle by the sensing deviation mean value of wave beam in sweep limits and choose.
4, optimize effective and practical value is high, adopt the utility model that the submatrix spacing of plate aerial is optimized after, the peak sidelobe of antenna has obtained effective reduction, and the improvement of antenna pattern is also far better than the method that adopts the weighting of spoke phase; By delay line length is optimized, effectively improved the instantaneous signal bandwidth of antenna simultaneously, thereby the utility model can effectively improve the antenna performance of multiple submatrixes panel antenna array.
5, applied widely, popularizing application prospect is extensive.
In sum, the utility model is simple in structure, in light weight, highly low, cost is low and laying is installed conveniently, the optimization method that is adopted reasonable in design and realize convenient, the instantaneous signal bandwidth that can effectively solve the antenna pattern characteristic variation of multiple submatrixes panel antenna array and minor level lifting and the antenna two big practical problems that diminish.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a fundamental diagram of the present utility model.
Description of reference numerals:
1-plate aerial submatrix; The 2-antenna rotating platform; The 2-1-rotating disk;
The 2-2-support; The 2-3-rotating shaft; The 3-feeder system;
The 3-1-phase shifter; The 3-2-delay line; The 3-3-low noise amplifier;
The 3-4-power combiner.
Embodiment
As shown in Figure 1 and Figure 2, the antenna rotating platform that the utility model comprises a plurality of plate aerial submatrixs 1, install for a plurality of described plate aerial submatrixs 1 and be connected to the radiating element of each plate aerial submatrix 1 and a plurality of feeder systems 3 between the signal transmitting and receiving port, the target elevation of a plurality of described plate aerial submatrixs 1 are installed in parallel on the antenna rotating platform and a plurality of described plate aerial submatrix 1 aims at the mark satellite is all identical.Many covers delay line 3-2 between phase shifter 3-1 that described feeder system 3 comprises and described signal transmitting and receiving port joins and the radiating element that is connected on plate aerial submatrix 1 and the phase shifter 3-1, the quantity of described plate aerial submatrix 1 is that the spacing between Q and adjacent two the plate aerial submatrixs 1 is d
i, wherein i=1,2,3...Q-1, and d
iRepresent in Q the plate aerial submatrix 1 spacing between i plate aerial submatrix 1 and i+1 the plate aerial submatrix 1.The tricks of described delay line 3-2 with the sweep limits of plate aerial submatrix 1 is carried out even subregion after scanning subregion number identical.
In the present embodiment, described antenna rotating platform comprises support 2-2 and is installed in rotating disk 2-1 on the support 2-2 by rotating shaft 2-3 that a plurality of described plate aerial submatrixs 1 are installed on the rotating disk 2-1.Described feeder system 3 also comprise low noise amplifier 3-3 and be connected on phase shifter 3-1 and described receiver port between power combiner 3-4, described low noise amplifier 3-3 is connected between the radiating element and delay line 3-2 of plate aerial submatrix 1.Comprise a plurality of antenna elements that are operated on the different frequency range in the described plate aerial submatrix 1.
Described phase shifter 3-1 joins with the exciter of its phase-shift phase being controlled adjustment, described exciter and the beam-controller of being controlled by master controller join, and described beam-controller and described exciter are formed the pitch control subsystem unit of the pitch orientation of plate aerial submatrix 1 being controlled in the electric scanning mode.Wherein, the azimuth axis that is installed on the plate aerial submatrix 1 joins by transmission mechanism and the azimuth-drive motor of being controlled by servo controller, described servo controller and master controller join and are controlled by master controller, described azimuth-drive motor and described servo controller join, and the control of azimuth unit of described servo controller in the mechanical scanning mode azimuth direction of plate aerial submatrix 1 being controlled.
On the pitching of a plurality of described plate aerial submatrixs 1 dimension institute to comprise the quantity of antenna element identical, the spacing that all antenna elements on the pitching dimension of each plate aerial submatrix 1 are adjacent two antenna elements that the pitching of even laying and a plurality of described plate aerial submatrixs 1 ties up is all identical.In the actual use, the luffing angle of a plurality of described plate aerial submatrixs 1 is all identical and all immobilize.In addition, the luffing angle of a plurality of described plate aerial submatrixs 1 also can be adjustable, this moment, the utility model also comprised by transmission mechanism and the pitching motor that is installed in that pitch axis (being the w2 axle) on the plate aerial submatrix 1 joins and is controlled by servo controller, and described pitching motor and described servo controller join, and described servo controller and master controller join and controlled by master controller.When the angle of pitch of plate aerial submatrix 1 is non-adjustable, adopt pure phase to sweep the synthetic pitching wave beam of mode; But and when the angle of pitch timing of plate aerial submatrix 1, what adopt is that mechanical scanning is synthesized the pitching wave beam with the mode of sweeping mutually, wherein mechanical scanning refers to the pitching motor that is installed on the plate aerial submatrix 1 luffing angle be adjusted, and sweeps mutually to refer to adopt phase-shift network (being phase shifter 3-1 and delay line 3-2) that luffing angle is adjusted.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (9)
1. a mobile satellite communication multiple submatrixes panel antenna array, it is characterized in that: the antenna rotating platform of comprise a plurality of plate aerial submatrixs (1), installing for a plurality of described plate aerial submatrixs (1) and be connected to the radiating element of each plate aerial submatrix (1) and a plurality of feeder systems (3) between the signal transmitting and receiving port, the target elevation of a plurality of described plate aerial submatrixs (1) are installed in parallel on the antenna rotating platform and a plurality of described plate aerial submatrixs (1) aim at the mark satellite is all identical; The phase shifter (3-1) that described feeder system (3) comprises and described signal transmitting and receiving port joins and be connected on the radiating element of plate aerial submatrix (1) and the many covers delay line (3-2) between the phase shifter (3-1), the quantity of described plate aerial submatrix (1) are that the spacing between Q and adjacent two the plate aerial submatrixs (1) is d
i, wherein i=1,2,3...Q-1, and d
iRepresent the spacing between i the plate aerial submatrix (1) and i+1 plate aerial submatrix (1) in Q the plate aerial submatrix (1); The tricks of described delay line (3-2) with the sweep limits of plate aerial submatrix (1) is carried out even subregion after scanning subregion number identical.
2. according to the described mobile satellite communication multiple submatrixes of claim 1 panel antenna array, it is characterized in that: described antenna rotating platform comprises support (2-2) and is installed in rotating disk (2-1) on the support (2-2) by rotating shaft (2-3) that a plurality of described plate aerial submatrixs (1) are installed on the rotating disk (2-1).
3. according to claim 1 or 2 described mobile satellite communication multiple submatrixes panel antenna arrays, it is characterized in that: described feeder system (3) also comprises low noise amplifier (3-3) and is connected on power combiner (3-4) between phase shifter (3-1) and the described receiver port that described low noise amplifier (3-3) is connected between the radiating element and delay line (3-2) of plate aerial submatrix (1).
4. according to claim 1 or 2 described mobile satellite communication multiple submatrixes panel antenna arrays, it is characterized in that: comprise a plurality of antenna elements that are operated on the different frequency range in the described plate aerial submatrix (1).
5. according to claim 1 or 2 described mobile satellite communication multiple submatrixes panel antenna arrays, it is characterized in that: described phase shifter (3-1) joins with the exciter of its phase-shift phase being controlled adjustment, described exciter and the beam-controller of being controlled by master controller join, and described beam-controller and described exciter are formed the pitch control subsystem unit of the pitch orientation of plate aerial submatrix (1) being controlled in the electric scanning mode.
6. according to claim 1 or 2 described mobile satellite communication multiple submatrixes panel antenna arrays, it is characterized in that: the azimuth axis that is installed on the plate aerial submatrix (1) joins by transmission mechanism and the azimuth-drive motor of being controlled by servo controller, described servo controller and master controller join and are controlled by master controller, described azimuth-drive motor and described servo controller join, and the control of azimuth unit of described servo controller in the mechanical scanning mode azimuth direction of plate aerial submatrix (1) being controlled.
7. according to claim 1 or 2 described mobile satellite communication multiple submatrixes panel antenna arrays, it is characterized in that: on the pitching of a plurality of described plate aerial submatrixs (1) dimension institute to comprise the quantity of antenna element identical, the spacing that all antenna elements on the pitching dimension of each plate aerial submatrix (1) are adjacent two antenna elements that the pitching of even laying and a plurality of described plate aerial submatrixs (1) ties up is all identical.
8. according to the described mobile satellite communication multiple submatrixes of claim 7 panel antenna array, it is characterized in that: the luffing angle of a plurality of described plate aerial submatrixs (1) is all identical and all immobilize.
9. according to the described mobile satellite communication multiple submatrixes of claim 7 panel antenna array, it is characterized in that: also comprise by transmission mechanism and the pitching motor that is installed in that pitch axis on the plate aerial submatrix (1) joins and controls by servo controller, and described pitching motor and described servo controller join, and described servo controller and master controller join and controlled by master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202823848U CN201773935U (en) | 2010-08-04 | 2010-08-04 | Multi-subarray flat plate antenna array for mobile satellite communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202823848U CN201773935U (en) | 2010-08-04 | 2010-08-04 | Multi-subarray flat plate antenna array for mobile satellite communication |
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| CN201773935U true CN201773935U (en) | 2011-03-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| TWI643446B (en) * | 2017-01-06 | 2018-12-01 | 王子 | Sun tracking device |
| CN108987948A (en) * | 2017-06-05 | 2018-12-11 | 李学智 | Antenna structure composed of multi-port sub-array and base frequency signal processor |
| CN111740771A (en) * | 2019-03-25 | 2020-10-02 | 华为技术有限公司 | Mixed multi-beam forming method and related device |
| CN112350073A (en) * | 2020-09-29 | 2021-02-09 | 北京理工大学 | Ultra-large-diameter reflecting antenna based on secondary mirror array |
-
2010
- 2010-08-04 CN CN2010202823848U patent/CN201773935U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| TWI643446B (en) * | 2017-01-06 | 2018-12-01 | 王子 | Sun tracking device |
| CN108987948A (en) * | 2017-06-05 | 2018-12-11 | 李学智 | Antenna structure composed of multi-port sub-array and base frequency signal processor |
| CN111740771A (en) * | 2019-03-25 | 2020-10-02 | 华为技术有限公司 | Mixed multi-beam forming method and related device |
| CN112350073A (en) * | 2020-09-29 | 2021-02-09 | 北京理工大学 | Ultra-large-diameter reflecting antenna based on secondary mirror array |
| CN112350073B (en) * | 2020-09-29 | 2021-11-26 | 北京理工大学 | Ultra-large-diameter reflecting antenna based on secondary mirror array |
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Granted publication date: 20110323 Termination date: 20110804 |