CN205646177U - Exceedingly high line during low section flat board moves - Google Patents
Exceedingly high line during low section flat board moves Download PDFInfo
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- CN205646177U CN205646177U CN201620407719.1U CN201620407719U CN205646177U CN 205646177 U CN205646177 U CN 205646177U CN 201620407719 U CN201620407719 U CN 201620407719U CN 205646177 U CN205646177 U CN 205646177U
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Abstract
The utility model discloses an exceedingly high line during low section flat board moves, including antenna array, orthogonal mode coupler and feed network, furtherly, antenna array include the pyramidal horn antenna unit, and feed network includes vertical polarisation feed network and horizontal polarisation feed network, and antenna array arranges for pyramidal horn antenna feed network 2, and the pyramidal horn antenna unit cascades with the orthogonal mode coupler, and vertical polarisation feed network cascades with the orthogonal mode coupler, and horizontal polarisation feed network cascades with the orthogonal mode coupler.
Description
Technical field
This utility model relates to satellite communication field, particularly relates to a kind of low section flat board antenna for satellite communication in motion.
Background technology
The design of antenna for satellite communication in motion is the key technology in satellite mobile communication system.It is for vehicle-mounted, boat-carrying
With the airborne use demand waiting mobile vehicle to communicate, can realize long-time, uninterrupted in carrier quickly moves
Two-forty information transmission；Meanwhile, high standard, high reliability in emergency communication safeguards system can fully be met
Requirement, the field such as news collection, emergency command can be widely used in.
For antenna for satellite communication in motion, how its key technology is by using minimum bore, minimum section,
Realize optimum antenna performance, so that the transmission of information rate reaches maximum in communication system.Currently mainly
There are reflector antenna, lens antenna and three kinds of structure ways of realization of array antenna.First generation antenna for satellite communication in motion with
Paraboloidal-reflector antenna is main, and the advantage of this kind of antenna is bandwidth, and sidelobe performance is preferable, and design is simple,
It is easily achieved.But its volume and weight is relatively big, is generally used for Large-scale Mobile carrier.Dielectric lens antenna
When scanning with it, gain does not declines and has the advantages such as low section, and is applied to multiband, scanning model
Enclose big middle low profile antenna for satellite communication in motion.Flat plate array antenna is high with its efficiency, lightweight and volume is little etc. excellent
Point, it has also become the main development direction of antenna for satellite communication in motion.It is generally divided into single group pattern and many group patterns two kind
Type, antenna all uses bidimensional mechanical scanning system.The advantage of many group patterns antenna is low profile, can realize receiving
Send out and share.But when the low elevation angle because of sheet between have occlusion effect can cause gain loss, when the high elevation angle because of sheet
Spacing relatively senior general causes secondary lobe to be raised.Comparatively speaking, single group pattern antenna array is flexible, antenna section low and
Transmit-receive sharing can be realized, be current dominant form.The Mijet series that Starling company of Israel develops
Ku wave band antenna for satellite communication in motion uses back of the body chamber feed element, and micro-strip, waveguide mixing feeding network, its antenna is straight
Footpath is 960mm, and height is 190mm.The E7000 type antenna for satellite communication in motion that RaySat company develops all is adopted
Using waveguide trumpet feed element, pure feed network for waveguide, antenna feed electrical loss is less.Its antenna diameter is
1300mm, high 300mm.Above two antenna for satellite communication in motion is functional, but its caliber size and cuing open
The most still there is the space of optimization further in face.
Utility model content
For reducing section and the caliber size of antenna, this utility model provides the low section of a kind of integrated design
Flat board antenna for satellite communication in motion.
Concrete technical solution is as follows:
A kind of low section flat board antenna for satellite communication in motion, including antenna array, orthomode coupler and feeding network,
Wherein,
Described antenna array is obtained by the arrangement of pyramidal horn antenna cell array, and described feeding network includes hanging down
Straight polarization feeding network and horizontal polarization feeding network, described pyramidal horn antenna unit and described orthogonal mode coupling
Clutch cascades, and described vertical polarization feeding network cascades with described orthomode coupler, and described horizontal polarization is presented
Electric network cascades with described orthomode coupler.
Described pyramidal horn antenna element number is N=N1×N2, wherein N1For columns, N2For line number,
N1≥8N2, N1、N2It is even number.
The rectangular aperture size A=L × H of described antenna array, wherein L is for long, and H is wide, L >=4H.
The rectangular aperture size a=l × h of described pyramidal horn antenna unit, wherein l is wide, and h is length, l
＜ h, 1 ＜ λ, λ are working frequency range minimum wavelength in free space.
Described pyramidal horn antenna unit is provided with metal grate, and described metal grate is by described pyramid loudspeaker sky
The rectangular aperture of line unit is divided into the square openings of two a length of l so that antenna transmits level simultaneously
Polarized wave and vertically polarized wave, and the phase place in the rectangular aperture face of described pyramidal horn antenna unit is consistent, its
Middle L=N1L, H=N2h。
Described orthomode coupler is provided with the first joint face, the second joint face and the 3rd joint face, and described first
Joint face is unit cascaded with described pyramidal horn antenna, described second joint face and described vertical polarization transmission network
Network cascades, and described 3rd joint face cascades with described horizontal polarization feeding network, and described second joint face is parallel
In the rectangular aperture face of described pyramidal horn antenna unit, described 3rd joint face is perpendicular to described pyramid loudspeaker
The rectangular aperture face of antenna element.Electric feed signal inputs described orthomode coupler from described first joint face,
Electric feed signal is resolved into vertically polarized wave and horizontal polarized wave by described orthomode coupler, respectively from described
Two joint faces and described 3rd joint face output.
Described first joint face and the unit cascaded rectangular aperture face of described pyramidal horn antenna are square.
Described pyramidal horn antenna unit is in length l being perpendicular on its direction, rectangular aperture face1≤2.5λ。
Described vertical polarization feeding network includes Pyatyi waveguide power divider, and described Pyatyi waveguide power divider is by E
Face waveguide power divider and H face waveguide power divider Mixed cascading, described horizontal polarization feeding network includes level Four
Waveguide power divider, described level Four waveguide power divider is mixed by E face waveguide power divider and H face waveguide power divider
Cascade.
Described vertical polarization feeding network and described horizontal polarization feeding network are being perpendicular to described pyramid loudspeaker
A length of l on the direction, rectangular aperture face of antenna element2, wherein l2≤2.6λ。
Advantageous Effects of the present utility model is embodied in following aspect:
1. antenna array, orthomode coupler and the feeding network integrated design that this utility model provides, changes
Processing technology, more convenient processing are apt to it；Meanwhile, antenna installation workload is decreased；
2. the section of the antenna that this utility model provides is relatively low, and section height is not more than 5.1 λ；
3. the antenna that this utility model provides is made up of Multicarity, and self structure intensity is high.
Accompanying drawing explanation
Fig. 1 is the low section flat board antenna for satellite communication in motion structural representation that this utility model provides；
Fig. 2 (a) is the antenna array front view that this utility model provides；
Fig. 2 (b) is the antenna array oblique view that this utility model provides；
Fig. 3 is the vertical polarization feed network structures schematic diagram that this utility model provides；
Fig. 4 is the horizontal polarization feed network structures schematic diagram that this utility model provides；
Fig. 5 (a) is the front view of the E face waveguide power divider in the feeding network that this utility model provides；
Fig. 5 (b) is the stereochemical structure of the E face waveguide power divider in the feeding network that this utility model provides
Schematic diagram；
Fig. 6 (a) is the front view of the H face waveguide power divider in the feeding network that this utility model provides；
Fig. 6 (b) is the stereochemical structure of the H face waveguide power divider in the feeding network that this utility model provides
Schematic diagram；
Fig. 7 is the emulation standing wave curve chart of Fig. 1 embodiment；
Fig. 8 is the emulation far-field pattern of Fig. 1 embodiment；
In figure, 1-pyramidal horn antenna unit；2-metal grate；3-orthomode coupler；4-vertical polarization
Feeding network；5-horizontal polarization feeding network.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by specific embodiment, this utility model is further described.
The present embodiment is the low section flat board antenna for satellite communication in motion of work and Ku wave band, and the working frequency range of reception is:
10.7GHz-12.75GHz, the working frequency range of transmitting is: 13.75GHz-14.5GHz.
Seeing Fig. 1, low section flat board antenna for satellite communication in motion includes antenna array, orthomode coupler 3 and feed
Network, wherein, described antenna array is obtained by pyramidal horn antenna unit 1 array arrangement, feeding network
Including vertical polarization feeding network 4 and horizontal polarization feeding network 5, pyramidal horn antenna unit 1 is with orthogonal
Mode coupler 3 cascades, vertical polarization feeding network 4 and horizontal polarization feeding network 5 Mixed cascading, vertically
Polarization feeding network 4 cascades with orthomode coupler 3, horizontal polarization feeding network 5 and orthomode coupler
3 cascades.Orthomode coupler 3 is provided with the first joint face D1, the second joint face D2 and the 3rd joint face
D3, the first joint face D1 cascade with pyramidal horn antenna unit 1, the second joint face D2 and vertical polarization
Feeding network 4 cascades, and the 3rd joint face D3 cascades with horizontal polarization feeding network 5, the second joint face
D2 is parallel to the rectangular aperture face of pyramidal horn antenna unit 1, and the 3rd joint face D3 is perpendicular to pyramid loudspeaker
The rectangular aperture face of antenna element 1.Electric feed signal inputs described orthogonal mode from described first joint face D1
Bonder 3, electric feed signal is resolved into vertically polarized wave and horizontal polarized wave by described orthomode coupler 3,
Respectively from described second joint face D2 and described 3rd joint face D3 output.
Seeing Fig. 2, pyramidal horn antenna unit 1 quantity is N=N1×N2, wherein N1For columns, N2
For line number, N1≥8N2, N1、N2It is even number；The rectangular aperture size A=L × H of antenna array, its
Middle L is for long, and H is wide, L >=4H；The rectangular aperture size a=l × h of pyramidal horn antenna unit 1,
Wherein l is wide, and h is for long, and l ＜ h, 1 ＜ λ, λ are working frequency range minimum wavelength in free space.
Comprehensively seeing Fig. 1 and Fig. 2, pyramidal horn antenna unit 1 is provided with metal grate 2, metal grate
The rectangular aperture of pyramidal horn antenna unit 1 is divided into the square openings of two a length of l by 2 so that
Antenna transmits horizontal polarized wave and vertically polarized wave, and the rectangular aperture face of pyramidal horn antenna unit 1 simultaneously
Phase place consistent, wherein L=N1L, H=N2h.First joint face D1 and pyramidal horn antenna unit 1 cascade
Rectangular aperture face be square.Pyramidal horn antenna unit 1 is in the length being perpendicular on its opening surface direction
l1≤2.5λ.Vertical polarization feeding network 4 and horizontal polarization feeding network 5 are being perpendicular to pyramidal horn antenna
A length of l on the direction, rectangular aperture face of unit 12, wherein l2≤2.6λ。
Seeing Fig. 3 to Fig. 6, vertical polarization feeding network includes Pyatyi waveguide power divider, described Pyatyi waveguide
Power splitter is by E face waveguide power divider and H face waveguide power divider Mixed cascading, described horizontal polarization transmission network
Network includes level Four waveguide power divider, and described level Four waveguide power divider is by E face waveguide power divider and the waveguide of H face
Power splitter Mixed cascading.
Seeing Fig. 7, wherein abscissa is frequency variable, and unit is GHz；Vertical coordinate is standing wave VSWR
Amplitude variations.It is 10.7GHz-12.75GHz that the present embodiment receives working band, launches working band and is
13.75GHz-14.5GHz, the standing wave of the second joint face D2 and the 3rd joint face D3 is in working band
It is respectively less than 1.8.
Seeing Fig. 8, wherein abscissa is angle variables, and unit is deg；Vertical coordinate is that far-field pattern increases
Benefit amplitude variations, unit is dB.FCC is in foreign standard 47CFR25.209,35 ° of scopes of north and south latitude
The side lobe envelope curve of interior definition.From figure it will be evident that when operating frequency is 14.088GHz,
The gain far-field pattern of antenna pitch orientation be 0 °, 10 °, 20 °, 30 °, in the range of 40 ° all
Meet FCC side lobe envelope curve requirement.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is also
Being not limited to this, any those skilled in the art is in the technical scope that this utility model discloses, to this reality
With novel done deformation or replacement, all should contain within protection domain of the present utility model.Therefore, originally
The protection domain of utility model should be as the criterion with described scope of the claims.
Claims (10)
1. one kind low section flat board antenna for satellite communication in motion, it is characterised in that: include antenna array, orthomode coupler and feeding network, wherein,
Described antenna array is obtained by the arrangement of pyramidal horn antenna cell array, described feeding network includes vertical polarization feeding network and horizontal polarization feeding network, described pyramidal horn antenna unit cascades with described orthomode coupler, described vertical polarization feeding network and described horizontal polarization feeding network Mixed cascading, described vertical polarization feeding network cascades with described orthomode coupler, and described horizontal polarization feeding network cascades with described orthomode coupler.
Low section flat board antenna for satellite communication in motion the most according to claim 1, it is characterised in that: described pyramidal horn antenna element number is N=N1×N2, wherein N1For columns, N2For line number, N1≥8N2, N1、N2It is even number.
Low section flat board antenna for satellite communication in motion the most according to claim 1, it is characterised in that: the rectangular aperture size A=L × H of described antenna array, wherein L is for long, and H is wide, L >=4H.
Low section flat board antenna for satellite communication in motion the most according to claim 3, it is characterised in that: the rectangular aperture size a=l × h of described pyramidal horn antenna unit, wherein h is for long, l is wide, l ＜ h, 1 ＜ λ, λ are working frequency range minimum wavelength in free space.
Low section flat board antenna for satellite communication in motion the most according to claim 4, it is characterized in that: described pyramidal horn antenna unit is provided with metal grate, described pyramidal horn antenna unit rectangular aperture is divided into the square openings of two a length of l by described metal grate, make antenna transmit horizontal polarized wave and vertically polarized wave simultaneously, and the phase place in the rectangular aperture face of described pyramidal horn antenna unit is consistent, wherein L=N1L, H=N2h.
Low section flat board antenna for satellite communication in motion the most according to claim 1, it is characterized in that: described orthomode coupler is provided with the first joint face, the second joint face and the 3rd joint face, described first joint face is unit cascaded with described pyramidal horn antenna, described second joint face cascades with described vertical polarization feeding network, described 3rd joint face cascades with described horizontal polarization feeding network, described second joint face is parallel to the rectangular aperture face of described pyramidal horn antenna unit, and described 3rd joint face is perpendicular to the rectangular aperture face of described pyramidal horn antenna unit.
Low section flat board antenna for satellite communication in motion the most according to claim 6, it is characterised in that: described first joint face and the unit cascaded rectangular aperture face of described pyramidal horn antenna are square.
Low section flat board antenna for satellite communication in motion the most according to claim 1, it is characterised in that: described pyramidal horn antenna unit is in length l being perpendicular on its direction, rectangular aperture face1≤ 2.5 λ, λ are working frequency range minimum wavelength in free space.
Low section flat board antenna for satellite communication in motion the most according to claim 1, it is characterized in that: described vertical polarization feeding network includes Pyatyi waveguide power divider, described Pyatyi waveguide power divider is by E face waveguide power divider and H face waveguide power divider Mixed cascading, described horizontal polarization feeding network includes level Four waveguide power divider, and described level Four waveguide power divider is by E face waveguide power divider and H face waveguide power divider Mixed cascading.
Low section flat board antenna for satellite communication in motion the most according to claim 1, it is characterised in that: described vertical polarization feeding network and the described horizontal polarization feeding network a length of l on the direction, rectangular aperture face being perpendicular to described pyramidal horn antenna unit2, wherein l2≤ 2.6 λ, λ are working frequency range minimum wavelength in free space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620407719.1U CN205646177U (en) | 2016-05-06 | 2016-05-06 | Exceedingly high line during low section flat board moves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620407719.1U CN205646177U (en) | 2016-05-06 | 2016-05-06 | Exceedingly high line during low section flat board moves |
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| CN205646177U true CN205646177U (en) | 2016-10-12 |
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| CN201620407719.1U Active CN205646177U (en) | 2016-05-06 | 2016-05-06 | Exceedingly high line during low section flat board moves |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658568A (en) * | 2017-09-27 | 2018-02-02 | 北京星际安讯科技有限公司 | Dual-band and dual-polarization Shared aperture waveguide trumpet planar array antenna |
| CN113422214A (en) * | 2021-08-24 | 2021-09-21 | 星展测控科技股份有限公司 | Broadband dual-linear polarization waveguide array antenna and communication device |
-
2016
- 2016-05-06 CN CN201620407719.1U patent/CN205646177U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658568A (en) * | 2017-09-27 | 2018-02-02 | 北京星际安讯科技有限公司 | Dual-band and dual-polarization Shared aperture waveguide trumpet planar array antenna |
| CN113422214A (en) * | 2021-08-24 | 2021-09-21 | 星展测控科技股份有限公司 | Broadband dual-linear polarization waveguide array antenna and communication device |
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