CN202678529U - Multi-array adaptive antenna - Google Patents
Multi-array adaptive antenna Download PDFInfo
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- CN202678529U CN202678529U CN 201220308830 CN201220308830U CN202678529U CN 202678529 U CN202678529 U CN 202678529U CN 201220308830 CN201220308830 CN 201220308830 CN 201220308830 U CN201220308830 U CN 201220308830U CN 202678529 U CN202678529 U CN 202678529U
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- antenna
- gps
- antenna unit
- glonass
- amplifying circuit
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- 230000003044 adaptive effect Effects 0.000 title claims abstract description 19
- 238000003491 array Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a multi-array adaptive antenna, which comprises a micro-strip receiving antenna unit, a feed network and a curved-surface reflection base plate. The micro-strip receiving antenna unit is arranged on the curved-surface reflection base plate through the feed network. The micro-strip receiving antenna unit comprises a GLONASS antenna unit for receiving GLONASS signals, and eight GPS/BD antenna units for receiving GPS/BD signals, namely a first GPS/BD antenna unit, a second GPS/BD antenna unit, a third GPS/BD antenna unit, a fourth GPS/BD antenna unit, a fifth GPS/BD antenna unit, a sixth GPS/BD antenna unit, a seventh GPS/BD antenna unit and an eighth GPS/BD antenna unit. The GLONASS antenna unit is arranged at the center of the curved-surface reflection base plate. The third GPS/BD antenna unit and the sixth GPS/BD antenna unit are respectively arranged at the two sides of the GLONASS antenna unit wherein the third GPS/BD antenna unit, the GLONASS antenna unit and the sixth GPS/BD antenna unit are equidistantly arranged to form the axis line of the antenna. The other GPS/BD antenna units are uniformly distributed at the two sides of the axis line of the antenna. The multi-array adaptive antenna can completely work independently without the support of any external equipment, while the software in a receiver does not need to be modified at all.
Description
Technical field
The utility model relates to a kind of antenna of global position system, relates in particular to a kind of many arrays adaptive antenna.
Background technology
Because it is quite faint (approximately-160dbw) that the GNSS satellite-signal arrives the ground receiver user, thermal noise than receiver also hangs down approximately 30db, faint interference just may cause the GNSS receiver not stablize, particularly artificial pernicious interference, cause the system accuracy reduction even can't work, lose homing capability, the GNSS Anti-Jamming Technique has become the key issue that satellite navigation receiver is badly in need of solution.Can the GNSS interference mode be divided into that pressing type disturbs, the deception formula is disturbed, the playback formula is disturbed, do wartime and effectively utilize GNSS so study on the one hand the Party B; Study on the one hand the normal use of GNSS.
The utility model content
The utility model purpose is to provide a kind of many arrays adaptive antenna for the defective that prior art exists.
The utility model adopts following technical scheme for achieving the above object:
Many arrays of the utility model adaptive antenna, comprise and accept microband antenna unit, feeding network and camber reflection base plate, little band is accepted antenna element and is installed on the camber reflection plate by feeding network, described little band is accepted antenna element and is comprised that GLONASS antenna element and 8 antenna elements of accepting the GPS/BD signal of accepting the GLONASS signal are a GPS/BD antenna element to the eight GPS/BD antenna elements, the GLONASS antenna element is as for the center of camber reflection base plate, the the 3rd and the 6th GPS/BD antenna element is arranged at respectively GLONASS antenna element both sides and equidistantly arranges formation antenna axis with the GLONASS antenna element, and all the other GPS/BD antenna elements all are distributed in both sides, described antenna axis.
Preferably, described 1-8 antenna element all adopts single feedback pin feed, and the GLONASS antenna adopts double-fed pin feed.
Preferably, described feeding network comprises the first amplifying circuit, the first filter, the second amplifying circuit, the 3rd amplifying circuit, the second filter and the 4th amplifying circuit, the gps signal of feed pin feed-in is successively through the first amplifying circuit, the first filter, the output of the second amplifying circuit, and the BD signal of feed pin feed-in is successively through the 3rd amplifying circuit, the second filter, the output of the 4th amplifying circuit.
Preferably, describedly when being installed, antenna is parallel to horizontal plane, going out to recessed in various degree on its aluminium base, and aerial signal is by the output of SMA radio frequency connector.
The utility model can work alone fully, does not need the support of other external device, does not also need the software in the receiver is carried out any modification.The utility model compatibility three systems comprise GPS L1 frequency range, the military frequency range of Big Dipper B3, GLONASS G1 frequency range, can cooperate simultaneously like this receiver to use, precision is higher, reaches the effect of better inhibition interference signal source.
Description of drawings
Fig. 1: the utility model structural representation.
Fig. 2: zero of anti-interference antenna falls into figure.
Fig. 3: the form of gps antenna and Beidou antenna.
Fig. 4: GLONASS antenna.
Embodiment
Such as Fig. 1, Fig. 3 and shown in Figure 4, many arrays of the utility model adaptive antenna, comprise and accept microband antenna unit, feeding network and camber reflection base plate, little band is accepted antenna element and is installed on the camber reflection plate by feeding network, described little band is accepted antenna element and is comprised that GLONASS antenna element 9 and 8 antenna elements of accepting the GPS/BD signal of accepting the GLONASS signal are a GPS/BD antenna element 1 to the 8th GPS/BD antenna element 8, the GLONASS antenna element is as for the center of camber reflection base plate, the the 3rd and the 6th GPS/BD antenna element 3,6 are arranged at respectively GLONASS antenna element 9 both sides and equidistantly arrange formation antenna axis, all the other GPS/BD antenna elements 1 with the GLONASS antenna element, 2,4,5,6,7 all be distributed in both sides, described antenna axis.
Preferably, described each antenna element all adopts single feedback pin feed.
Preferably, described feeding network comprises the first amplifying circuit, the first filter, the second amplifying circuit, the 3rd amplifying circuit, the second filter and the 4th amplifying circuit, the gps signal of feed pin feed-in is successively through the first amplifying circuit, the first filter, the output of the second amplifying circuit, and the BD signal of feed pin feed-in is successively through the 3rd amplifying circuit, the second filter, the output of the 4th amplifying circuit.
Preferably, describedly when being installed, antenna is parallel to horizontal plane, going out to recessed in various degree on its aluminium base, and aerial signal is by the output of SMA radio frequency connector.
The utility model embodiment is as follows:
Employing comprises that the array antenna of nine array elements adopts 4-16 bay structure usually, and it is excessive that adjacent array element distance generally is taken as 1/2 array element distance that receives the signal center frequency wavelength, reduces the signal correction degree; Array element distance is too small, will cause unnecessary lobe at directional diagram, so array element half-wavelength spacing is normally preferred.The bay configuration mode comprises the type of straight line, the type on ring-like and plane.Many array antennas of nine array elements utilize the spatial character of signal transmission to realize the control of the beam position of pair array antenna pattern usually.Weights by adaptive adjustment antenna array, keep higher gain in the useful signal incident direction, fall into and form zero in the interference signal incident direction, automatically revise and optimize directional diagram, frequency response and the polarization characteristic of antenna, improve the signal to noise ratio of output signal, suppress and the elimination interference.
Utilize adaptive signal processor, automatically regulate the weight coefficient of adaptive array according to the output situation of adaptive antenna array, that antenna can change from the required signal of motion tracking according to the direction of variation, satellite navigation signals and the interference signal of electromagnetic environment, automatically suppress interference signal, with the quality of raising antenna receiving signal, thereby has adaptivity.Must eliminate as far as possible the interference of satellite-signal other signals in addition.
The adaptive array technology is utilized adaptive beam formation technology to form aerial radiation direction zero at the anti-jamming signal arrival direction and is fallen into (as shown in Figure 2), forms zero point in the disturbing wave direction, with this interference signal is played a shielding action.
Utilize array antenna and direction of arrival (DOA) estimation technique at receiver place to determine a direction of arrival line from the receiver to the information source, be direction line (LOB), the DOA that utilizes at last a plurality of receivers to estimate carries out triangulation, and the intersection point of direction line is exactly the estimated position of information source.Direction of arrival or ripple by the measuring radiation signal reach the position that radiation source is estimated at angle (AOA).This estimation only needs two to receive the position that array element just can be determined radiation source in theory, but in practice, owing to being subject to angular resolution, multipath and noise limit, required array element usually will be more than two.Calculate the position of each antenna element on aluminium base by the actual test of DOA technology, the Analysis interference source suppresses to disturb so to greatest extent;
Many array element array antenna utilizes the spatial character of signal transmission to realize the control of the beam position of pair array antenna pattern usually. by the weights of adaptive adjustment antenna array, keep higher gain in the useful signal incident direction, fall into and form zero in the interference signal incident direction, automatically revise and optimize directional diagram, frequency response and the polarization characteristic of antenna, improve the signal to noise ratio of output signal, suppress and the elimination interference.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. array adaptive antenna more than a kind, comprise and accept microband antenna unit, feeding network and camber reflection base plate, little band is accepted antenna element and is installed on the camber reflection plate by feeding network, it is characterized in that: described little band is accepted antenna element and is comprised that GLONASS antenna element and 8 antenna elements of accepting the GPS/BD signal of accepting the GLONASS signal are a GPS/BD antenna element to the eight GPS/BD antenna elements, the GLONASS antenna element is as for the center of camber reflection base plate, the the 3rd and the 6th GPS/BD antenna element is arranged at respectively GLONASS antenna element both sides and equidistantly arranges formation antenna axis with the GLONASS antenna element, and all the other GPS/BD antenna elements all are distributed in both sides, described antenna axis.
2. many arrays adaptive antenna according to claim 1 is characterized in that described the first to the 8th GPS/BD antenna element all adopts single feedback pin feed, and the GLONASS antenna adopts double-fed pin feed.
3. many arrays adaptive antenna according to claim 1, it is characterized in that described feeding network comprises the first amplifying circuit, the first filter, the second amplifying circuit, the 3rd amplifying circuit, the second filter and the 4th amplifying circuit, the gps signal of feed pin feed-in is successively through the first amplifying circuit, the first filter, the output of the second amplifying circuit, and the BD signal of feed pin feed-in is successively through the 3rd amplifying circuit, the second filter, the output of the 4th amplifying circuit.
4. many arrays adaptive antenna according to claim 1 is characterized in that described each antenna element is connected with a receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308830 CN202678529U (en) | 2012-06-28 | 2012-06-28 | Multi-array adaptive antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308830 CN202678529U (en) | 2012-06-28 | 2012-06-28 | Multi-array adaptive antenna |
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| Publication Number | Publication Date |
|---|---|
| CN202678529U true CN202678529U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308830 Expired - Lifetime CN202678529U (en) | 2012-06-28 | 2012-06-28 | Multi-array adaptive antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162160A (en) * | 2020-09-15 | 2021-01-01 | 武汉凡谷电子技术股份有限公司 | Testing method of Massive MIMO AFU |
-
2012
- 2012-06-28 CN CN 201220308830 patent/CN202678529U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162160A (en) * | 2020-09-15 | 2021-01-01 | 武汉凡谷电子技术股份有限公司 | Testing method of Massive MIMO AFU |
| CN112162160B (en) * | 2020-09-15 | 2024-05-17 | 武汉凡谷电子技术股份有限公司 | Testing method of Massive MIMO AFU |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 201702 Shanghai city Qingpu District No. 599, building 1, 3 Gaojing Road, Room 301 Patentee after: SHANGHAI HIGH GAIN INFORMATION TECHNOLOGY Co.,Ltd. Address before: 200233, building 15, building 481, Guiping Road, Shanghai, Xuhui District, 6A1 Patentee before: Shanghai Haiji Information Technology Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
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| CX01 | Expiry of patent term |