CN203883133U - Beidou seven-unit satellite navigation anti-interference antenna - Google Patents
Beidou seven-unit satellite navigation anti-interference antenna Download PDFInfo
- Publication number
- CN203883133U CN203883133U CN201420137776.3U CN201420137776U CN203883133U CN 203883133 U CN203883133 U CN 203883133U CN 201420137776 U CN201420137776 U CN 201420137776U CN 203883133 U CN203883133 U CN 203883133U
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- antenna
- satellite navigation
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- antenna chamber
- big dipper
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 6
- 229910000737 Duralumin Inorganic materials 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a Beidou seven-unit satellite navigation anti-interference antenna. The Beidou seven-unit satellite navigation anti-interference antenna includes an antenna cavity; a seven-unit antenna unit and a low-noise amplifier are respectively arranged in the antenna cavity; the antenna cavity is covered with a radome; an antenna cavity cover plate is arranged at a lower portion of the antenna cavity in a sealed manner; and wire outlets through which cables can pass are arranged on the antenna cavity cover plate, wherein the cables are used for connecting the low-noise amplifier and are provided with radio frequency joints. The Beidou seven-unit satellite navigation anti-interference antenna is integrated with the antenna and the low-noise amplifier, and has many antenna array elements. The Beidou seven-unit satellite navigation anti-interference antenna has the advantages of simple structure, portability, high gain, low noise, and high consistency of the phases and amplitudes of various channels, and can be widely applied to the aviation and spaceflight, navigation scheduling, tracking and monitoring, and measurement and control fields and the like.
Description
Technical field
The utility model relates to triones navigation system and uses receiving equipment field, relates in particular to the Big Dipper seven unit satellite navigation anti-interference antennas.
Background technology
Triones navigation system is far away apart from the earth, a little less than signal, exist and be easily disturbed shortcoming.Mostly existing anti-interference antenna is satellite antenna independently directly with cable, to be connected and to realize Anti-Jamming with radio-frequency channel with low noise amplifier.Do like this volume large, install comparatively complicatedly, and radio frequency cable length and loss be difficult to unanimously, has the problems such as amplitude, phase place are difficult to unanimously.
Utility model content
The purpose of this utility model be to provide a kind of effective solution antenna volume large, install comparatively complicated, anti-disturb that number is less, the Big Dipper seven unit satellite navigation anti-interference antennas of amplitude and the problem such as phase place is poor.
In order to reach as above object, the utility model is taked following technical scheme:
A kind of Big Dipper seven unit satellite navigation anti-interference antennas, comprise antenna chamber, in described antenna chamber cavity, be respectively arranged with seven element antenna unit and low noise amplifiers, in described antenna chamber, add and be stamped radome, antenna chamber below envelope has antenna chamber cover plate, antenna chamber cover plate to be provided with to run through for connecting the wire hole of the cable with radio-frequency joint of low noise amplifier.
Further, described seven element antenna unit are by 6 the Big Dipper B3 antenna distributing on regular hexagon diagonal angle, and GPS and a Big Dipper B3 antenna of GLONASS compatible antennas stack that is distributed in this regular hexagon center forms.
Further, it is isometric and with the cable of radio-frequency joint that described antenna chamber cover plate is provided with 8 tunnels, and 8 road cables are connected with low noise amplifier through antenna chamber cover plate respectively.
Further, described low noise amplifier is placed on shielding box and is built in the cavity consisting of antenna chamber cover plate, antenna chamber and radome.
Further, the shielding box of described antenna chamber, antenna chamber cover plate and placement low noise amplifier all adopts the duralumin 2A12 material that process through electric conductive oxidation on surface to make.
Further, described radome adopts ABS plastic material to make.
Further, described seven element antenna unit all adopt the CER-10 organic ceramic laminated sheet board making of TACONIC company.
Adopt as above technical scheme to there is following beneficial effect: the utility model integrates antenna, LNA, and bay is more, there is simple in structure, light, high-gain, low noise, each channel phases, the feature that amplitude coincidence is good.Can be widely used in the fields such as Aero-Space, navigation scheduling, tracking and monitoring and observing and controlling.
Accompanying drawing explanation
Fig. 1 is the present embodiment front view.
Fig. 2 is the present embodiment structure scheme of installation.
Fig. 3 is the present embodiment schematic rear view.
Fig. 4 is the present embodiment antenna cover structure figure.
Fig. 5 is the present embodiment antenna chamber covering plate structure figure.
Fig. 6 is the present embodiment antenna cloth system of battle formations.
Wherein, 1, radome; 2, seven element antenna unit; 3, antenna chamber; 4, low noise amplifier; 5, with the cable of radio-frequency joint; 6, antenna chamber cover plate.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
As shown in Figure 1, these Big Dipper seven unit satellite navigation anti-interference antennas, comprise antenna chamber 3, in antenna chamber 3 cavitys, be respectively arranged with seven element antenna unit 2 and low noise amplifier 4, in antenna chamber 3, add and be stamped radome 1, as shown in Figure 4, antenna chamber 3 below envelopes have antenna chamber cover plate 6, as shown in Figure 5, antenna chamber cover plate 6 is provided with and runs through for connecting the wire hole of the cable 5 with radio-frequency joint of low noise amplifier 4, as shown in Figure 3.Fig. 2 is the schematic diagram after the present embodiment structure is installed.
As shown in Figure 6, seven element antenna unit 2 are by 6 the Big Dipper B3 antenna distributing on regular hexagon diagonal angle, and GPS and a Big Dipper B3 antenna of GLONASS compatible antennas stack that is distributed in this regular hexagon center forms.
It is isometric and with the cable of radio-frequency joint that antenna chamber cover plate 6 is provided with 8 tunnels, and 8 road cables are connected with low noise amplifier 4 through antenna chamber cover plate 6 respectively.
Low noise amplifier 4 is placed on shielding box and is built in the cavity consisting of antenna chamber cover plate 6, antenna chamber 3 and radome 1.Antenna chamber cover plate 6, antenna chamber 3 and radome 1 are fixed by screw.
The utility model is around six Big Dipper B3 antennas by radome 1, seven element antenna unit 2(, and centre is a GPS and a Big Dipper B3 antenna of GLONASS compatible antennas stack), antenna chamber 3,
Antenna chamber cover plate 6, low noise amplifier 4, with cable 5 six parts of radio-frequency joint, form.As shown in antenna schematic diagram 1.
Above-mentioned antenna element (is around six Big Dipper B3 antennas, centre is that a GPS and GLONASS compatible antennas are superimposed on a Big Dipper B3 antenna) by four screws, be fixed on antenna chamber upper surface respectively, the feed probes of eight 50 ohm is stretched out respectively at antenna element (be around six Big Dipper B3 antennas, centre is that a GPS and GLONASS compatible antennas the are superimposed on a Big Dipper B3 antenna) back side.Low noise amplifier is arranged on antenna chamber inside, and with screw, low noise amplifier plate is fixed on to antenna chamber inside.Gap is left on antenna chamber surface, antenna element (is around six Big Dipper B3 antennas, centre is that a GPS and GLONASS compatible antennas are superimposed on a Big Dipper B3 antenna) eight 50 ohm of feed probes be directly welded on the circuit board of low noise amplifier through gap respectively, reduced to the full extent the loss gaining between antenna and LNA.8 tunnels are isometric and through antenna chamber cover plate, be connected with low noise amplifier respectively with the cable of radio-frequency joint, guarantee the consistency of each channel phases and amplitude.Finally with 16 screws, antenna chamber cover plate, antenna chamber, radome are fixed again.
Above-mentioned radome adopts ABS plastic material to make.Antenna chamber, antenna chamber cover plate, low noise amplifier shielding box all adopt duralumin 2A12 material to make, and surface color electric conductive oxidation is processed.Described seven element antenna unit all adopt the CER-10 organic ceramic laminated sheet board making of TACONIC company.
The utility model design minute three parts:
Array element quantity:
The operation principle of passive antenna array element quantity selective basis adaptive antenna system is known, and a N element array, only has N-1 the degree of freedom, produces at most N-1 controlled zero and falls into.The quantity that this project demand suppresses wide-band interferer should be not less than 5.6 array-element antenna can produce 5 controlled zeros and fall in theory, but zero fall into loss and will significantly increase and cannot reach effective anti-jamming effectiveness, and for guaranteeing that zero falls into the degree of depth and meets the anti-interference index of complete machine, bay quantity should be greater than 6, this day line options 7 array elements.
Array element distance:
Relative position between array element, has a great impact the performance of whole system.Between array element, relative distance chooses the coupling effect that should consider between each antenna pattern.Too small when array element distance, there will be serious mutual coupling phenomenon, make the problems such as widen the zero point of interference radiating way formation, and the degree of depth shoals, reduced the performance of adaptive array.When spacing is greater than about half wavelength, can produce graing lobe, this is also that system does not wish to occur.Based on these 2 considerations, in order to make mutual coupling reduce to minimum, can prevent that again graing lobe from occurring, generally getting array element distance is half-wavelength (120mm) or quarter-wave (60mm).The utility model array element distance location quarter-wave (60mm).
The form of structuring the formation:
The array element that forms adaptive array can be arranged by any-mode, but normally press that straight line is equidistant, circumference is equidistant or the equidistant arrangement of plane, and is orientated identical.Because circle battle array has isotropic feature, have and can omnirange handle at wave beam and " zero point ", aerial array takes up space little, and the advantage such as in any direction the identical and difficult generation direction finding of antenna aperture is fuzzy, therefore select antenna array, is rotational symmetric round gust.Seven unit cloth become circle battle array also to have multiple.For example six enclose one, and on circumference, six array elements are added center array element of cloth again.Be exactly seven array elements of cloth etc. on circumference in addition.Through emulation, find that six enclose the mode of structuring the formation and aspect the amplitude-phase consistency of array element, are obviously being better than structuring the formation of seven array elements on circumference.Therefore six modes of structuring the formation of enclosing a circle battle array are selected in this design.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.Those skilled in the art should understand the utility model and not be restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope.
Claims (7)
1. the Big Dipper seven unit satellite navigation anti-interference antennas, comprise antenna chamber (3), it is characterized in that, in described antenna chamber (3) cavity, be respectively arranged with seven element antenna unit (2) and low noise amplifier (4), in described antenna chamber (3), add and be stamped radome (1), the wire hole of the cable with radio-frequency joint (5) that antenna chamber (3) below envelope has antenna chamber cover plate (6), antenna chamber cover plate (6) to be provided with to run through for connecting low noise amplifier (4).
2. the Big Dipper seven unit satellite navigation anti-interference antennas according to claim 1, it is characterized in that, described seven element antenna unit (2) are by 6 the Big Dipper B3 antenna distributing on regular hexagon diagonal angle, and GPS and a Big Dipper B3 antenna of GLONASS compatible antennas stack that is distributed in this regular hexagon center forms.
3. the Big Dipper seven unit satellite navigation anti-interference antennas according to claim 1, it is characterized in that, it is isometric and with the cable of radio-frequency joint that described antenna chamber cover plate (6) is provided with 8 tunnels, and 8 road cables are connected with low noise amplifier (4) through antenna chamber cover plate (6) respectively.
4. the Big Dipper seven unit satellite navigation anti-interference antennas according to claim 1, it is characterized in that, described low noise amplifier (4) is placed on shielding box and is built in the cavity consisting of antenna chamber cover plate (6), antenna chamber (3) and radome (1).
5. the Big Dipper seven unit satellite navigation anti-interference antennas according to claim 4, it is characterized in that, the shielding box of described antenna chamber (3), antenna chamber cover plate (6) and placement low noise amplifier (4) all adopts the duralumin 2A12 material that process through electric conductive oxidation on surface to make.
6. the Big Dipper seven unit satellite navigation anti-interference antennas according to claim 1, is characterized in that, described radome (1) adopts ABS plastic material to make.
7. the Big Dipper seven unit satellite navigation anti-interference antennas according to claim 1, is characterized in that, described seven element antenna unit (2) all adopt the CER-10 organic ceramic laminated sheet board making of TACONIC company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137776.3U CN203883133U (en) | 2014-03-25 | 2014-03-25 | Beidou seven-unit satellite navigation anti-interference antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137776.3U CN203883133U (en) | 2014-03-25 | 2014-03-25 | Beidou seven-unit satellite navigation anti-interference antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883133U true CN203883133U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137776.3U Expired - Lifetime CN203883133U (en) | 2014-03-25 | 2014-03-25 | Beidou seven-unit satellite navigation anti-interference antenna |
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| CN (1) | CN203883133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934723A (en) * | 2015-02-03 | 2015-09-23 | 芜湖航飞科技股份有限公司 | Broadband satellite navigation antenna array |
| CN108550984A (en) * | 2018-03-14 | 2018-09-18 | 湖北三江航天险峰电子信息有限公司 | A kind of GPS/BD2 microstrip antennas |
-
2014
- 2014-03-25 CN CN201420137776.3U patent/CN203883133U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934723A (en) * | 2015-02-03 | 2015-09-23 | 芜湖航飞科技股份有限公司 | Broadband satellite navigation antenna array |
| CN108550984A (en) * | 2018-03-14 | 2018-09-18 | 湖北三江航天险峰电子信息有限公司 | A kind of GPS/BD2 microstrip antennas |
| CN108550984B (en) * | 2018-03-14 | 2020-05-15 | 湖北三江航天险峰电子信息有限公司 | GPS/BD2 microstrip antenna |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710100, Shaanxi, Xi'an Aerospace base, Shenzhou four Road International Plaza incubator C block 301 Patentee after: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. Address before: 710100, Shaanxi, Xi'an Aerospace base, Shenzhou four Road International Plaza incubator C block 301 Patentee before: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Beidou seven-unit satellite navigation anti-interference antenna Effective date of registration: 20160310 Granted publication date: 20141015 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. Registration number: 2016990000188 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190809 Granted publication date: 20141015 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. Registration number: 2016990000188 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |