CN109687133A - A kind of miniaturization big-dipper satellite terminal antenna - Google Patents
A kind of miniaturization big-dipper satellite terminal antenna Download PDFInfo
- Publication number
- CN109687133A CN109687133A CN201910014139.4A CN201910014139A CN109687133A CN 109687133 A CN109687133 A CN 109687133A CN 201910014139 A CN201910014139 A CN 201910014139A CN 109687133 A CN109687133 A CN 109687133A
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- radiating
- feeding network
- dipper satellite
- satellite terminal
- terminal antenna
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims description 23
- 230000005855 radiation Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000010287 polarization Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention proposes a kind of miniaturization big-dipper satellite terminal antenna, and the antenna includes radiating layer and feed layer；The radiating layer includes four radiating doublets being distributed in a square area and four L-type minor matters；The radiating doublet is in convex shape；The specification of four radiating doublets is identical and is distributed at four sides of square area；The L-type minor matters are located at the middle part of square area and are arranged around square area center；The right angle end of four L-type minor matters is towards four angular direction of square area；Feeding network is equipped at the feed layer；The feeding network is connected with radiating doublet；Structure of the invention is compact, and the utilization rate of Antenna Design size can be improved.
Description
Technical field
The present invention relates to wireless communication technology field, especially a kind of miniaturization big-dipper satellite terminal antenna.
Background technique
Satellite navigation aerial is actually a circular polarized antenna, and so-called polarize refers to the electric field side of aerial radiation electromagnetic wave
To when the size of electric field does not change over, but direction changes over time, and the electric field extremity track of synthesis is when being a circle
Circular polarisation, if it is right-handed circular polarization that angular speed, which meets right-hand rule,.The prior art mainly passes through one point four of transmission network
Network makes four ports be sequentially generated 90 ° of phase differences, to realize the effect of circular polarisation.The radiating doublet length of antenna is by center frequency
Rate determines, reaches maximum resonance state when length is quarter-wave
The prior art generallys use the mode that feeding network adds radiating doublet in small design big-dipper satellite terminal antenna.Feedback
Electric network is made of three Wilkinson power splitters, and two of them power splitter realizes 90 ° each other of phase difference respectively, then uses
Third power splitter realizes that 180 ° of phase differences are connected the final phase for making four ports be sequentially generated 90 ° with the first two power splitter
Position delay.
Original technology occupies a large amount of ruler due to the feeding network using the combination of three Wilkinson power splitters
Very little area, and since the delay line phase distance of power splitter is smaller, cause energy to concentrate on so being easy to happen coupling
Inner antenna radiation is not gone out.The single of radiating doublet also results in the coupling influence of radiating doublet to each other around line mode.
Summary of the invention
The present invention proposes a kind of miniaturization big-dipper satellite terminal antenna, compact-sized, and the benefit of Antenna Design size can be improved
With rate.
The present invention uses following technical scheme.
A kind of miniaturization big-dipper satellite terminal antenna, the antenna includes radiating layer and feed layer；The radiating layer includes
Four radiating doublets being distributed in a square area and four L-type minor matters；The radiating doublet is in convex shape；Four radiation
The specification of oscillator is identical and is distributed at four sides of square area；The L-type minor matters are located at the middle part of square area and ring
It is arranged around square area center；The right angle end of four L-type minor matters is towards four angular direction of square area；At the feed layer
Equipped with feeding network；The feeding network is connected with radiating doublet.
The first medium substrate that the top surface of the antenna is square, bottom surface are second medium substrate；The radiating layer
Radiating doublet and L-type minor matters are set at first medium upper surface of base plate；The feeding network of the feed layer is set to second medium base
At plate upper surface.
Air layer is equipped between the first medium substrate, second medium substrate.
The feeding network is connected with connecting transmission line with radiating doublet.
The convex shape radiating doublet is one section of spiral shape broken line being formed by connecting with multiple L-type conductor head and the tail；Broken line
Beginning section connects with the edges of boards at substrate position where the radiating doublet；The plate at substrate position where the latter end of broken line and the radiating doublet
Side it is parallel and close to.
The vertical view of the feeding network is in distributed rectangular；The feeding network four corners of distributed rectangular are fed there are four setting up separately
Port, the broken line beginning section that feed port is connected to radiating doublet through connecting transmission line；There is 90 ° of feed phase between adjacent feed port
The line width that position postpones each feeder line so that aerial radiation right-handed circular polarization, in feeding network is identical.
Maximum resonance can occur at 1.561GHz for the antenna of working condition.
The size of the antenna is 50mm*50mm*7.5mm.
The first medium substrate, second medium substrate with a thickness of 0.5mm, the height of air layer is 6mm；The radiation
The length of oscillator is 48.2, line width 1.5mm；The overall dimensions of feeding network are 31mm*35mm, using unified 1.25mm line
Width, adjacent feed port realize 90 ° of phase delay by different feed line lengths；The width of L-type minor matters is 1mm, L-type minor matters
Two sections of line lengths be 2.8mm and 2mm respectively.
The present invention has the advantages that
1. in the present invention, novel feeding network realizes the delay of 90 ° of compact sequence phases, presented with existing Wilkinson
Electric network is compared, smaller.Feedback compared with conventionally employed multistage feeder line carries out the feeding network of impedance transformation, in the application
The feeder line of electric network is only with single-stage transition, so that the transmission line even width of entire feeding network, is laid out neat compact and big
Coupling is reduced greatly.
2. in the present invention, radiating doublet uses the radiating doublet around line mode, with existing single straight line of spiral bending
It compares, improves the utilization rate of area size, to realize the effect of miniaturization.In addition, the radiating doublet around line mode
Coupling influence between being also allowed to while size compression reduces.
3. the L-type minor matters being added in the present invention, introduce the coupling with radiating doublet, facilitate the effect for improving circular polarisation
With the radiation efficiency of antenna.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Attached drawing 1 is cut-away illustration of the invention；
Attached drawing 2 is the vertical view of radiating layer to schematic diagram；
Attached drawing 3 is the vertical view of feed layer to schematic diagram；
Attached drawing 4 is reflection coefficient simulation result schematic diagram；
Attached drawing 5 is that axis compares simulation result schematic diagram；
Attached drawing 6 is the face the XOZ direction schematic diagram of radiation emulation；
Attached drawing 7 is the 3D direction schematic diagram of radiation emulation；
In figure: 1- first medium substrate；2- second medium substrate；3- connection transmission line；4- feed port；5- radiating doublet；6-
Feeding network；7-L type minor matters；The broken line beginning section of 101- radiating doublet；The broken line latter end of 102- radiating doublet.
Specific embodiment
As shown in figs. 1-7, a kind of miniaturization big-dipper satellite terminal antenna, the antenna includes radiating layer and feed layer；Institute
Stating radiating layer includes four radiating doublets 5 being distributed in a square area and four L-type minor matters 7；The radiating doublet is in
Convex shape；The specification of four radiating doublets is identical and is distributed at four sides of square area；The L-type minor matters are located at square
The middle part in region and circular square area center setting；The right angle end of four L-type minor matters is towards the quadrangle side of square area
To；Feeding network 6 is equipped at the feed layer；The feeding network is connected with radiating doublet.
The first medium substrate 1 that the top surface of the antenna is square, bottom surface are second medium substrate 2；The radiating layer
Radiating doublet and L-type minor matters be set to first medium upper surface of base plate at；The feeding network of the feed layer is set to second medium
At upper surface of base plate.
Air layer is equipped between the first medium substrate, second medium substrate.
The feeding network is connected with connecting transmission line 3 with radiating doublet.
The convex shape radiating doublet is one section of spiral shape broken line being formed by connecting with multiple L-type conductor head and the tail；Broken line
Beginning section 101 connects with the edges of boards at substrate position where the radiating doublet；Baseplate part where the latter end 102 and the radiating doublet of broken line
The edges of boards of position it is parallel and close to.
The vertical view of the feeding network is in distributed rectangular；The feeding network four corners of distributed rectangular are fed there are four setting up separately
Port 4, the broken line beginning section that feed port is connected to radiating doublet through connecting transmission line；There is 90 ° of feed between adjacent feed port
For phase delay so that aerial radiation right-handed circular polarization, the line width of each feeder line in feeding network is identical.
Maximum resonance can occur at 1.561GHz for the antenna of working condition.
The size of the antenna is 50mm*50mm*7.5mm.
The first medium substrate, second medium substrate with a thickness of 0.5mm, the height of air layer is 6mm；The radiation
The length of oscillator is 48.2, line width 1.5mm；The overall dimensions of feeding network are 31mm*35mm, using unified 1.25mm line
Width, adjacent feed port realize 90 ° of phase delay by different feed line lengths；The width of L-type minor matters is 1mm, L-type minor matters
Two sections of line lengths be 2.8mm and 2mm respectively.
In this example, the key of feeding network design is the form of single-stage transition, that is, guarantees the line width one of each feed line
It causes, the overall dimension of feeding network is about λg/4*λg /4,λgIt is waveguide length, to by bandwidth further expansion, Ke Yijia
The spacing of cabling between big feeding network, but size also becomes larger therewith.
In this example, influence of the coupling distance between L-type minor matters and radiating doublet for aerial radiation axis ratio is very big, leads to
Cross the adjustment position of L-type minor matters, size can improve aerial radiation circular polarisation effect.
In this example, the size for being related to antenna around line mode of radiating doublet is strong and weak with coupling, and narrow spacing can make
It is interfered with each other between each port, influences the effect of circular polarisation, therefore radiating doublet should not be wound overstocked.
Claims (9)
1. a kind of miniaturization big-dipper satellite terminal antenna, it is characterised in that: the antenna includes radiating layer and feed layer；The spoke
Penetrating layer includes four radiating doublets being distributed in a square area and four L-type minor matters；The radiating doublet is in convex shape；
The specification of four radiating doublets is identical and is distributed at four sides of square area；The L-type minor matters are located at square area
Middle part and circular square area center setting；The right angle end of four L-type minor matters is towards four angular direction of square area；It is described
Feeding network is equipped at feed layer；The feeding network is connected with radiating doublet.
2. a kind of miniaturization big-dipper satellite terminal antenna according to claim 1, it is characterised in that: the top surface of the antenna
The first medium substrate being square, bottom surface are second medium substrate；The radiating doublet and L-type minor matters of the radiating layer are set to the
At one medium substrate upper surface；The feeding network of the feed layer is set at second medium upper surface of base plate.
3. a kind of miniaturization big-dipper satellite terminal antenna according to claim 2, it is characterised in that: the first medium base
Air layer is equipped between plate, second medium substrate.
4. a kind of miniaturization big-dipper satellite terminal antenna according to claim 3, it is characterised in that: the feeding network with
Connection transmission line is connected with radiating doublet.
5. a kind of miniaturization big-dipper satellite terminal antenna according to claim 4, it is characterised in that: the convex shape radiation
Oscillator is one section of spiral shape broken line being formed by connecting with multiple L-type conductor head and the tail；Beginning section and the base where the radiating doublet of broken line
The edges of boards at plate position connect；The edges of boards at substrate position where the latter end of broken line and the radiating doublet it is parallel and close to.
6. a kind of miniaturization big-dipper satellite terminal antenna according to claim 5, it is characterised in that: the feeding network
It overlooks in distributed rectangular；The feeding network four corners of distributed rectangular set up separately there are four feed port, and feed port is passed through connection
Defeated line is connected to the broken line beginning section of radiating doublet；Current feed phase between adjacent feed port with 90 ° postpones so that aerial radiation is right
The line width of hand circular polarization, each feeder line in feeding network is identical.
7. a kind of miniaturization big-dipper satellite terminal antenna according to claim 6, it is characterised in that: the antenna of working condition
Maximum resonance can occur at 1.561GHz.
8. a kind of miniaturization big-dipper satellite terminal antenna according to claim 6, it is characterised in that: the size of the antenna
For 50mm*50mm*7.5mm.
9. a kind of miniaturization big-dipper satellite terminal antenna according to claim 6, it is characterised in that: the first medium base
Plate, second medium substrate with a thickness of 0.5mm, the height of air layer is 6mm；The length of the radiating doublet is 48.2, line width
For 1.5mm；The overall dimensions of feeding network are 31mm*35mm, and using unified 1.25mm line width, adjacent feed port is not by
90 ° of phase delay is realized with feed line length；The width of L-type minor matters is 1mm, and two sections of line lengths of L-type minor matters are respectively
2.8mm and 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014139.4A CN109687133B (en) | 2019-01-08 | 2019-01-08 | Miniaturized big dipper satellite terminal antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014139.4A CN109687133B (en) | 2019-01-08 | 2019-01-08 | Miniaturized big dipper satellite terminal antenna |
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| CN109687133A true CN109687133A (en) | 2019-04-26 |
| CN109687133B CN109687133B (en) | 2024-02-20 |
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| CN201910014139.4A Active CN109687133B (en) | 2019-01-08 | 2019-01-08 | Miniaturized big dipper satellite terminal antenna |
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