CN108206324B - Compact high-performance GNSS antenna - Google Patents
Compact high-performance GNSS antenna Download PDFInfo
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- CN108206324B CN108206324B CN201611244849.9A CN201611244849A CN108206324B CN 108206324 B CN108206324 B CN 108206324B CN 201611244849 A CN201611244849 A CN 201611244849A CN 108206324 B CN108206324 B CN 108206324B
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- 240000000560 Citrus x paradisi Species 0.000 description 7
- 230000005855 radiation Effects 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
The present invention provides a kind of compact high-performance GNSS antennas, wherein the GNSS antenna includes: to have antenna side wall and antenna bottom wall in barrel-shaped orthogonal feed antenna (10), be used to form open cavity；Short-circuit pillar (20), one end are vertically installed at the center of the antenna bottom wall；Patch (30), is set to the other end of short-circuit pillar (20)；Multiple feed probes (40), are set between antenna bottom wall and the patch (30)；In barrel-shaped chokes ring (50), with chokes ring-side wall (501), chokes ring inclined wall (502) and chokes ring bottom wall (503), chokes ring (50) surrounds antenna side wall and antenna bottom wall, wherein, the top of chokes ring-side wall (501) is lower than the top of antenna side wall, and the inside and outside wall of chokes ring inclined wall (502) bends inwards.The present invention will not reduce the electric property of GNSS antenna in the case where realizing GNSS antenna small size.
Description
Technical field
The present invention relates to antenna technical field more particularly to a kind of Global Satellite Navigation System (GNSS) receiving antenna, tools
It is exactly a kind of compact high-performance GNSS antenna for body.
Background technique
The full name of GNSS is Global Navigation Satellite System (Global Navigation Satellite System), it is
Refer to all satellite navigation systems, including the whole world, region and enhancing, such as the U.S. GPS (global positioning system),
The GlONASS (Russian Global Satellite Navigation System) of Russia, European Galileo (Galileo, European global satellite
Navigation system), BEIDOU (Chinese Beidou satellite navigation system) and relevant enhancing system, such as the WAAS (wide area in the U.S.
Enhancing system), (enhancing of Multi-functional transporting satellite is by the MSAS of the EGNOS (Europe geostationary Navigation Overlay System) in Europe and Japan
System) etc., it also covers in other satellite navigation systems built and built later.International GNSS system be multisystem, stage construction,
The complicated combined system of multi-mode.
Currently, needing that (worldwide navigation is defended using space flight GNSS when carrying out precise orbit measurement (POD) using grapefruit satellite
Star system) receiving antenna.In order to meet precise orbit measurement (POD) requirement of grapefruit satellite, GNSS receiving antenna should be more
A frequency band (for example, GPS L1, GPS L2, BEIDOU B1 and BEIDOU B3 etc.) is pressed down with very high left-handed polarization (LHCP)
System and very high carrier phase are stablized.Due to grapefruit satellite to be applied to, have strictly to the size of GNSS receiving antenna
It limits.In fact, the design of existing GNSS antenna (especially specific criteria chokes annular GNSS antenna) can satisfy electric property
Requirement.But existing GNSS antenna is unable to satisfy requirement of the grapefruit satellite to antenna size, when the size of GNSS antenna becomes
Small, when may be mounted in grapefruit satellite, the design of existing GNSS antenna is difficult to meet the regulation of electric property.
Therefore, those skilled in the art need to design a kind of novel GNSS antenna, are meeting grapefruit satellite to antenna
While size requires, guarantee that antenna has preferable electric property.
Summary of the invention
In view of this, solving the technical problem to be solved in the present invention is that provide a kind of compact high-performance GNSS antenna
The problem of being unable to satisfy electric property after existing GNSS antenna miniaturization.
In order to solve the above-mentioned technical problem, a specific embodiment of the invention provides a kind of compact GNSS antenna, comprising:
In barrel-shaped orthogonal feed antenna, there is antenna side wall and antenna bottom wall, be used to form an open cavity；Short circuit branch
Column, one end are vertically installed at the center of the antenna bottom wall；Patch is set to the other end of the short-circuit pillar；It is multiple
Feed probes are set between the antenna bottom wall and the patch；In barrel-shaped chokes ring, there is chokes ring-side wall and grip
Ring bottom wall is flowed, the chokes ring surrounds the antenna side wall and the antenna bottom wall, wherein the top of the chokes ring-side wall
Lower than the top of the antenna side wall.
Above-mentioned specific embodiment according to the present invention it is found that compact high-performance GNSS antenna at least have it is beneficial below
Effect: orthogonal feed paster antenna is set in open cavity, and chokes ring exterior wall is lower than interior wall, thereby may be ensured that GNSS
The phase stability of carrier wave is improved under antenna low clearance；It, can be in addition, the inside and outside wall of chokes ring two side walls bends inwards
Keep GNSS antenna lower；Chokes ringwall bending part is inclined-plane, can increase bandwidth of operation；Feed probes and patch do not have physics
Capacitive coupling feed and two independent bandwidth of operation may be implemented in connection；The chokes to bend inwards using multiple inside and outside walls
Ring can be further improved the electric property of GNSS antenna.
It is to be understood that above-mentioned general description and following specific embodiments are merely illustrative and illustrative, not
The range of the invention to be advocated can be limited.
Detailed description of the invention
Following appended attached drawing is part of specification of the invention, depicts example embodiments of the present invention, institute
Attached drawing is used to illustrate the principle of the present invention together with the description of specification.
Fig. 1 is a kind of structure of the embodiment one for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram；
Fig. 2 is a kind of structure of the embodiment two for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram；
Fig. 3 is a kind of structure of the embodiment three for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram；
Fig. 4 is a kind of structure of the example IV for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram；
Fig. 5 is a kind of structure of the embodiment five for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram；
Fig. 6 is a kind of cutaway perspective view for compact high-performance GNSS antenna that the specific embodiment of the invention provides；
Fig. 7 is a kind of cross-section front view for compact high-performance GNSS antenna that the specific embodiment of the invention provides；
Fig. 8 is a kind of product figure for compact high-performance GNSS antenna that the specific embodiment of the invention provides；
Fig. 9 is that a kind of measurement reflection coefficient for compact high-performance GNSS antenna that the specific embodiment of the invention provides is bent
Line chart；
Figure 10 is a kind of measurement wave beam RHCP for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Gain curve figure；
Figure 11 A is that a kind of compact high-performance GNSS antenna that the specific embodiment of the invention provides works in 1227MHz
When measurement normalize radiation curve figure；
Figure 11 B is that a kind of compact high-performance GNSS antenna that the specific embodiment of the invention provides works in 1575MHz
When measurement normalize radiation curve figure；
Figure 12 A is that a kind of compact high-performance GNSS antenna that the specific embodiment of the invention provides works in 1227MHz
When measurement spatial axes ratio curve graph；
Figure 12 B is that a kind of compact high-performance GNSS antenna that the specific embodiment of the invention provides works in 1575MHz
When measurement spatial axes ratio curve graph；
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will with attached drawing and in detail
Narration clearly illustrates the spirit of disclosed content, and any skilled artisan is understanding the content of present invention
After embodiment, when the technology that can be taught by the content of present invention, it is changed and modifies, without departing from the essence of the content of present invention
Mind and range.
The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not as a limitation of the invention.
In addition, in the drawings and embodiments the use of element/component of same or like label is for representing same or like portion
Point.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is non-to limit the present invention, only for distinguish with same technique term description element or operation.
About direction term used herein, such as: upper and lower, left and right, front or rear etc. are only the sides with reference to attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
About term used herein " substantially ", " about " etc., to modify it is any can be with the quantity or mistake of microvariations
Difference, but this slight variations or error can't change its essence.In general, microvariations that such term is modified or error
Range in some embodiments can be 20%, in some embodiments can be 10%, can be in some embodiments 5% or its
His numerical value.It will be understood by those skilled in the art that the aforementioned numerical value referred to can be adjusted according to actual demand, it is not limited thereto.
It is certain to describe the word of the application by lower or discuss in the other places of this specification, to provide art technology
Personnel's guidance additional in relation to the description of the present application.
Fig. 1 is a kind of structure of the embodiment one for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram；Fig. 2 is a kind of structure of the embodiment two for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram, shown in as shown in Figure 1, Fig. 2, compact GNSS antenna has orthogonal feed antenna, short-circuit pillar, patch and multiple feedbacks
Electric probe.The setting of chokes ring (Choking Ring) can allow GNSS antenna to obtain good left-handed polarization inhibition (LHCP
radiation suppression)。
In the specific embodiment shown in the drawings, which includes: in barrel-shaped orthogonal feed antenna 10, short
Road pillar 20, patch 30, multiple feed probes 40 and in barrel-shaped chokes ring 50, wherein orthogonal feed antenna 10 is in drum
Shape, orthogonal feed antenna 10 have antenna side wall and antenna bottom wall, and orthogonal feed antenna 10 is used to form an open cavity；
One end of short-circuit pillar 20 is vertically installed at the center of the antenna bottom wall；Patch 30 is set to the another of the short-circuit pillar 20
One end；Multiple feed probes 40 are set between the antenna bottom wall and the patch 30；Have in barrel-shaped chokes ring 50
Chokes ring-side wall 501 and chokes ring bottom wall 503, the chokes ring 50 surround the antenna side wall and the antenna bottom wall,
In, the top of the chokes ring-side wall 501 is lower than the top of the antenna side wall.
As shown in Figure 1, shown in Fig. 2, GNSS antenna has extraordinary carrier wave stability, is realizing GNSS antenna miniaturization
While, the carrier phase stability of GNSS antenna is maintained, it is (such as small that GNSS antenna provided by the invention can be applied to space
Type satellite etc.), it is airborne (such as unmanned plane) also to can be applied to land.In the outside of orthogonal feed antenna 10, chokes ring 50 is set
It can inhibit left-handed polarization LHCP (left-handed circularly polarized) well, guarantee that GNSS antenna has
Good electric property；The top of chokes ring-side wall 501 is lower than the top of antenna side wall, and the carrier wave of low-altitude dish can be improved
Phase deviation；Chokes ring 50 is in barrel-shaped, and has chokes ring-side wall 501 and chokes ring bottom wall 503, can reduce antenna ruler
It is very little, while improving carrier phase deviation.In order to meet needs, in entire wave band, LHCP inhibition should be better than 20dB.The present invention
Specific embodiment in, the number of the chokes ring 50 be it is multiple, described in multiple chokes rings 50 are surrounded on after successively overlap
The bottom outside (as shown in Figure 2) of orthogonal feed antenna 10.
Fig. 3 is a kind of structure of the embodiment three for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram, as shown in figure 3, chokes ring (Choking Ring) also includes the chokes of connection chokes ring-side wall and chokes ring bottom wall
Ring inclined wall, wherein the outer surface that chokes ring inclined wall has inner surface and is inclined to set.
In the specific embodiment shown in the drawings, chokes ring 50 also includes the connection chokes ring-side wall 501 and described
The chokes ring inclined wall 502 of chokes ring bottom wall 503, wherein chokes ring inclined wall 502 has inner surface 5021 and is inclined to set
Outer surface 5022.The inside and outside wall of chokes ring inclined wall 502 bends inwards to further decrease antenna size, mentions simultaneously
High carrier phase deviation.
In specific embodiments of the present invention, the outer surface 5022 of chokes ring inclined wall 502 and the angle of horizontal plane are 45 degree；
The inner surface 5021 of chokes ring inclined wall 502 is in barrel-shaped (not being painted in figure).Alternatively, the outer surface of chokes ring inclined wall 502
5022 and the angle of inner surface 5021 and horizontal plane be 45 degree.
Referring to Fig. 3, in the outside of orthogonal feed antenna 10, setting chokes ring can inhibit left-handed polarization LHCP well
(left-handed circularly polarized) guarantees that GNSS antenna has good electric property.In order to meet need
It wants, in entire wave band, LHCP inhibition should be better than 20dB.Outer surface 5022 is inclined to set, and can improve bandwidth, further
Improve the electrical property of antenna.
Referring again to Fig. 3, antenna bottom wall central region has to the barrel-shaped region of lower recess, the barrel-shaped area
Domain has region side walls 10211 and region bottom wall 10212, logical around the center of the region bottom wall 10212 setting multiple first
Hole, one end of the feed probes 40 are resisted against below the patch 30, and the other end of the feed probes 40 is inserted in institute
It states in first through hole.Wherein, region bottom wall 10212 is contacted with chokes ring bottom wall 503, and antenna bottom wall is in addition to region bottom wall 10212
Except region do not contacted with chokes ring bottom wall 503；Antenna side wall is not contacted with chokes ring-side wall 501.
Fig. 4 is a kind of structure of the example IV for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram, such as Fig. 3 allow feed probes and antenna bottom wall, patch to insulate, thus realize that capacitive coupling is fed, capacitive coupling feed
Introducing not will increase impedance bandwidth, but can produce two different service bands, while guaranteeing GNSS antenna miniaturization,
Maintain the electric property of GNSS antenna.
In the specific embodiment shown in the drawings, which further includes upper insulating part 70 and lower insulating part 80, on
Insulating part 70 is located in barrel-shaped groove raised on 30 lower surface of patch, and upper insulating part 70 is for wrapping up the feed probes
40 one end；Lower insulating part 80 is corresponding with the upper insulating part 70, and lower insulating part 80 is located at the first through hole and described second
In through-hole, lower insulating part 80 is used to surround the other end of the feed probes 40.It is described exhausted in specific embodiments of the present invention
The material of edge part 70 and lower insulating part 80 is polyimides.
Referring to fig. 4, due to the introducing of chokes ring 50, it will definitely increase the size of GNSS antenna, in order to allow GNSS antenna
Size meets application requirement, needs to reduce the size of orthogonal feed antenna 10, will finally compress the size of open cavity, this
It will lead to narrower impedance bandwidth, this will limit the size of GNSS antenna, while wave band conflict occurs；In order to guarantee GNSS antenna
Electric property, allow feed probes and antenna bottom wall, patch to insulate, to introduce capacitive coupling feed, can produce two not
Same service band guarantees the electric property of GNSS antenna while realizing GNSS antenna miniaturization.It is more electric in order to obtain
Multiple chokes rings 50 can be arranged in the case where guaranteeing that the size of GNSS antenna is met the requirements in gas performance in GNSS antenna,
Multiple chokes rings 50 can be sequentially sleeved in the outside for being set to the orthogonal feed antenna 10, i.e. chokes ring 50 from inside to outside
Internal diameter is increasing, to realize the effect of fitting, as shown in Figure 2.
Referring again to Fig. 4, GNSS antenna further includes barrel-shaped lantern ring 90, wherein barrel-shaped lantern ring 90 surrounds the lower insulating part
80, barrel-shaped lantern ring 90 is correspondingly arranged with second through-hole, for enhancing the stability of the feed probes 40.
Fig. 5 is a kind of structure of the embodiment five for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Schematic diagram, as shown in figure 5, a feeding network lid is arranged below chokes ring, it is ensured that feeding network is without damage, prolongs
The service life of long GNSS antenna.
In the specific embodiment shown in the drawings, which further includes feeding network lid 60, feeding network lid 60
It is set to the bottom of the chokes ring bottom wall 503.In order to meet the requirement of grapefruit satellite, 60 bottom of the feeding network lid place
Plane and the antenna side wall 501 on along the distance between the plane formed less than 55 millimeters；The chokes ring-side wall 501
Diameter is less than or equal to 150 millimeters；GNSS antenna can be adapted for GPS L1/L2 wave band and Beidou B1/B3 wave band；GNSS antenna
Overall dimensions are less than 150 × 150 × 55 cubic millimeters；For 10 degree or more of zenith angles (including 80 degree of zenith angle (zenith
Angle)), the root mean square (RMS) of carrier phase error is less than 1 millimeter.
Referring to Fig. 5, a feeding network lid 60 is set below chokes ring 50, the end of feed probes 40 can be covered
Mouthful, it is ensured that use process feeding network is without damage, extends the service life of GNSS antenna.
Fig. 6 is a kind of cutaway perspective view for compact high-performance GNSS antenna that the specific embodiment of the invention provides；
Fig. 7 is a kind of cross-section front view for compact high-performance GNSS antenna that the specific embodiment of the invention provides；Fig. 8 is the present invention
A kind of product figure for compact high-performance GNSS antenna that specific embodiment provides, as shown in Fig. 6, Fig. 7, Fig. 8, compact
GNSS antenna mainly includes two large divisions, and a part is antenna body, and another part is orthogonal feed network.Orthogonal feed net
Network provides orthogonal signalling to antenna body, and antenna body launches orthogonal signalling.Antenna body and orthogonal feed network point
It does not design, then fits together to form GNSS antenna.Antenna body includes: a patch (patch)；One with short circuit branch
The orthogonal feed antenna of column (shorting post), the orthogonal feed antenna form an open cavity (open
cavity)；Four pairs of polyimide insulative parts (polyimide stoppers), each feed probes (feeding probe) two
The insulating part at end is a pair；One chokes ring (choke ring) with chokes ring inclined wall；One feeding network lid
(feeding network cover).The overall dimensions of GNSS antenna are 150 × 150 × 55 cubic millimeters；The material of GNSS antenna
Matter is aluminium alloy, and the overall weight of GNSS antenna is 420 grams.The preferential geometric parameter of GNSS antenna is as shown in table 1 below, and table 1 is
The preferential geometric parameter of GNSS antenna shown in Fig. 7.
Table 1
| Parameter | d | e | g | m | s | n | h | i |
| Numerical value (millimeter) | 150 | 130 | 1.5 | 87.2 | 7 | 12 | 55 | 2.2 |
| Parameter | c | f | l | k | a | b | w | j |
| Numerical value (millimeter) | 5.45 | 72.8 | 32 | 2.4 | 9.7 | 12.3 | 130 | 7 |
Fig. 9 is that a kind of measurement reflection coefficient for compact high-performance GNSS antenna that the specific embodiment of the invention provides is bent
Line chart, Figure 10 are a kind of measurement wave beam RHCP gain for compact high-performance GNSS antenna that the specific embodiment of the invention provides
Curve graph, as shown in Figure 9, Figure 10, the antenna-reflected efficiency of four service bands is in -20dB hereinafter, utilize SATIMO system
Antenna is measured, measurement beam gain is as shown in Figure 10, measures beam gain in GPS L2 wave band, Beidou B3 wave band, Beidou B2 wave
Section, GPS L1 wave band are respectively 6.4dBi, 6.4dBi, 6.8dBi, 6.8dBi.Due to orthogonal feed via net loss and detuning
(mismatching) the reason of, measurement beam gain 1dB smaller than analog quantity or so.
Figure 11 A is that a kind of compact high-performance GNSS antenna that the specific embodiment of the invention provides works in 1227MHz
When measurement normalize radiation curve figure；Figure 11 B is a kind of compact high-performance GNSS that the specific embodiment of the invention provides
Measurement of the Antenna Operation in 1575MHz normalizes radiation curve figure, and as shown in Figure 11 A, Figure 11 B, GNSS antenna works in GPS
When L2 wave band, LHCP is suppressed to 25.9dB；GNSS antenna works in GPS L1 wave band, and LHCP is suppressed to 23.5dB, measurement knot
Fruit is slightly more better than analog quantity.
Figure 12 A is that a kind of compact high-performance GNSS antenna that the specific embodiment of the invention provides works in 1227MHz
When measurement spatial axes ratio curve graph；Figure 12 B is a kind of compact high-performance GNSS that the specific embodiment of the invention provides
The curve graph of measurement spatial axes ratio of the Antenna Operation in 1575MHz is greater than 10 degree for the elevation angle as shown in Figure 12 A, Figure 12 B
When (value range of θ is -80~80 degree of degree, and the value range of φ is -80~80 degree of degree), GNSS antenna works in GPS L2 wave
Duan Shi, measurement spatial axes ratio (measured spatial axis ratio) are better than 1.8dB；GNSS antenna works in GPS L1
When wave band, measurement spatial axes ratio is better than 3.5dB.
Following table 2 is measurement radiance (measured radiation of the GNSS antenna work on four wave bands
Performance), it can be seen from Table 2 that, compared with analog quantity, measurement LHCP inhibits slightly good, and measures space axial direction ratio
Deteriorate with carrier phase error, but still can satisfy requirement.For example, maximum load of the GNSS antenna work in GPS L2 wave band
Wave phase error is 3.55 degree/2.41 millimeters, and the root mean square of corresponding carrier phase error is 0.98 degree/0.67 millimeter；GNSS days
Maximum carrier phase error of the line work in Beidou B3 wave band is 3.20 degree/2.10 millimeters, corresponding carrier phase error
Root mean square is 0.90 degree/0.60 millimeter.Carrier phase error is more preferable in Beidou B1 wave band and GPS L1 wave band, in Beidou
The carrier phase error of B1 wave band and GPS L1 wave band is respectively 2.41 degree/1.29 millimeters and 2.50 degree/1.32 millimeters, In
The carrier phase error root mean square of Beidou B1 wave band and GPS L1 wave band is respectively 0.68 degree/0.36 millimeter and 0.69 degree/
0.36 millimeter.Table 2 is to be summarized by measuring the radiance that GNSS antenna of the invention obtains.
Table 2
The electric property that GNSS antenna provided by the invention can be realized especially inhibits in LHCP and phase center is stablized
It conveniently has outstanding performance, meets the pinpoint demand of GNSS system.Meanwhile GNSS antenna provided by the invention is small in size, with
Existing large volume GNSS antenna is compared, and electric property is identical or approximate.
The foregoing is merely the schematical specific embodiments of the present invention, before not departing from conceptions and principles of the invention
It puts, the equivalent changes and modifications that any those skilled in the art is made should belong to the scope of protection of the invention.
Claims (9)
1. a kind of compact high-performance GNSS antenna, which is characterized in that the GNSS antenna includes:
In barrel-shaped orthogonal feed antenna (10), there is antenna side wall and antenna bottom wall, be used to form an open cavity；
Short-circuit pillar (20), one end are vertically installed at the center of the antenna bottom wall；
Patch (30) is set to the other end of the short-circuit pillar (20)；
Multiple feed probes (40), are set between the antenna bottom wall and the patch (30)；And
In barrel-shaped chokes ring (50), there is chokes ring-side wall (501) and chokes ring bottom wall (503), the chokes ring (50)
Surround the antenna side wall and the antenna bottom wall, wherein the top of the chokes ring-side wall (501) is lower than the antenna side
The top of wall；
The chokes ring (50) also includes the chokes ring for connecting the chokes ring-side wall (501) and the chokes ring bottom wall (503)
Inclined wall (502), with inner surface (5021) and the outer surface (5022) being inclined to set, the chokes ring inclined wall (502)
Inside and outside wall bend inwards.
2. compact high-performance GNSS antenna as described in claim 1, which is characterized in that the chokes ring inclined wall (502)
Outer surface (5022) and the angle of horizontal plane be 45 degree；The inner surface (5021) of the chokes ring inclined wall (502) is in drum
Shape.
3. compact high-performance GNSS antenna as described in claim 1, which is characterized in that the chokes ring inclined wall (502)
Outer surface (5022) and the angle of inner surface (5021) and horizontal plane be 45 degree.
4. compact high-performance GNSS antenna as described in claim 1, which is characterized in that antenna bottom wall central region tool
The barrel-shaped region of oriented lower recess, the barrel-shaped region have region side walls (10211) and region bottom wall (10212), enclose
Multiple first through hole are set around the center of the region bottom wall (10212), one end of the feed probes (40) is resisted against described
Below patch (30), the other end of the feed probes (40) is inserted in the first through hole.
5. compact high-performance GNSS antenna as claimed in claim 4, which is characterized in that on the chokes ring bottom wall (503)
Corresponding to the second through-hole is provided at the first through hole, the feed probes (40) are inserted in described across the first through hole
In second through-hole.
6. compact high-performance GNSS antenna as described in claim 1, which is characterized in that the GNSS antenna further include:
Feeding network lid (60) is set to the bottom of the chokes ring bottom wall (503).
7. compact high-performance GNSS antenna as claimed in claim 6, which is characterized in that feeding network lid (60) bottom
Along the distance between plane formed less than 55 millimeters in the plane at place and the antenna side wall (501).
8. compact high-performance GNSS antenna as described in claim 1, which is characterized in that the chokes ring-side wall (501)
Diameter is less than or equal to 150 millimeters.
9. compact high-performance GNSS antenna as described in claim 1, which is characterized in that the number of the chokes ring (50) is
Multiple, the different chokes rings (50) of multiple sizes cover in the outside of the orthogonal feed antenna (10).
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| CN2016111679528 | 2016-12-16 | ||
| CN201611167952 | 2016-12-16 |
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| CN108206324B true CN108206324B (en) | 2019-10-29 |
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| CN110635244B (en) * | 2019-09-06 | 2022-07-15 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| WO2024112223A1 (en) * | 2022-11-24 | 2024-05-30 | Topcon Positioning Systems, Inc. | Slot-fed patch antenna for gnss applications |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202678506U (en) * | 2012-06-28 | 2013-01-16 | 上海海积信息科技有限公司 | Choke coil GNSS antenna |
| CN103594794A (en) * | 2013-11-20 | 2014-02-19 | 大连海事大学 | High-performance multi-mode active satellite navigation antenna |
| CN103762426A (en) * | 2014-01-06 | 2014-04-30 | 深圳市维力谷无线技术有限公司 | Wideband high precision satellite positioning terminal antenna |
| CN104319467A (en) * | 2014-10-14 | 2015-01-28 | 陕西海通天线有限责任公司 | Five-frequency-section user machine antenna being compatible with Beidou and GPS (Global Positioning System) functions |
| CN104966887A (en) * | 2015-05-28 | 2015-10-07 | 北京安腾天汇通信技术有限公司 | High-anti-multipath high-precision measuring type antenna and communication equipment |
-
2016
- 2016-12-29 CN CN201611244849.9A patent/CN108206324B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202678506U (en) * | 2012-06-28 | 2013-01-16 | 上海海积信息科技有限公司 | Choke coil GNSS antenna |
| CN103594794A (en) * | 2013-11-20 | 2014-02-19 | 大连海事大学 | High-performance multi-mode active satellite navigation antenna |
| CN103762426A (en) * | 2014-01-06 | 2014-04-30 | 深圳市维力谷无线技术有限公司 | Wideband high precision satellite positioning terminal antenna |
| CN104319467A (en) * | 2014-10-14 | 2015-01-28 | 陕西海通天线有限责任公司 | Five-frequency-section user machine antenna being compatible with Beidou and GPS (Global Positioning System) functions |
| CN104966887A (en) * | 2015-05-28 | 2015-10-07 | 北京安腾天汇通信技术有限公司 | High-anti-multipath high-precision measuring type antenna and communication equipment |
Non-Patent Citations (1)
| Title |
|---|
| "Dual-Band CP Antenna With a Dual-Ring Cavity for Enhanced Beamwidth";Shao-Li Zuo;《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》;20141218;第14卷;第867-868页，图1-3 * |
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| CN108206324A (en) | 2018-06-26 |
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