CN106384880A - Beidou GPS neighbor frequency band double-positioning-system crescent slot array antenna - Google Patents
Beidou GPS neighbor frequency band double-positioning-system crescent slot array antenna Download PDFInfo
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- CN106384880A CN106384880A CN201610833271.4A CN201610833271A CN106384880A CN 106384880 A CN106384880 A CN 106384880A CN 201610833271 A CN201610833271 A CN 201610833271A CN 106384880 A CN106384880 A CN 106384880A
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- crescent moon
- array antenna
- medium substrate
- radiation patch
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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
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0018—Space- fed arrays
-
- 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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- 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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- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a Beidou GPS neighbor frequency band double-positioning-system crescent slot array antenna, and relates to a microstrip antenna. The antenna is provided with an upper dielectric substrate and a lower dielectric substrate, wherein the upper surface of the upper dielectric substrate is provided with two parallel radiation pasters, and four corners of each radiation paster are respectively provided with two crescent slot coupling phase control structures. The two radiation pasters employ a mode of coaxial line offset feed for feed, and feed points are departed from the centers of the radiation pasters in the vertical and horizontal directions by the same distance. The lower surface of the upper dielectric substrate is a reflection floor. The upper surface of the lower dielectric substrate is a feed network floor, and the feed network floor is attached to and connected with the floor of the upper dielectric substrate. The lower surface of the lower dielectric substrate is provided with a one-to-two power divider feed network. Coaxial through holes are used for the feed of the radiation pasters of the upper dielectric substrate, and the output phase difference of the power divider is 90 degrees. The power divider controls the amplitude and phase of the two radiation pasters, and can affect the circular polarization characteristics of the whole antenna.
Description
Technical field
The present invention relates to a kind of microstrip antenna, especially relate to a kind of teeth space of Big Dipper GPS adjacent band double locating system moon
Gap array antenna.
Background technology
The science and technology of rapid development is so that satellite navigation industry is more widely applied.GPS
(GNSS), become 21 century another mainstay together with the Internet, mobile communication.GPS is in order to provide height
The services such as precision positioning, precision time service and satellite communication, play the part of more and more crucial role in human society.At present, the whole world
There are four large satellite navigation system, they are american global positioning system (GPS), Russian GLONASS system, Europe respectively
GALILEO system and Chinese dipper system.Constantly bringing forth new ideas and economic fast development of technology in future, also will have and more lead
Boat system occurs, and the multipath effect that in complex environment, the diffraction of radio wave, reflection and scattering are formed simultaneously makes triangular web
Shortcoming be more difficult to control to, lead to the accuracy of navigation accuracy to decline.
And the critical component that antenna is received and dispatched as navigation signal, its performance quality, directly affect the globality of navigation terminal
Energy.At present the research of satellite navigation aerial is concentrated mainly on circular polarisation, multi-frequency multi-mode compatibility, miniaturization, wave beam forming and resists
The fields such as interference, for the research shorter mention of hi-Fix.And constantly bringing forth new ideas with information technology, navigation application demand
Continuous improvement, to the degree of accuracy of positioning and ageing increasingly harsher, research meets the satellite of hi-Fix demand to people
The high performance satellite navigation antenna of navigation antenna is the task of top priority.
Satellite navigation terminal antennae needs reception satellite-signal to be positioned, and number of satellite is more, and error is less, positioning accurate
Degree is higher.At present, GPS quantity gets more and more, and the satellite number of individual system is limited, positioning precision
It is limited, if the navigation system of multiple satellites is combined, that is for a fixed point receiver, the star of its receipt signal
Multiple is increased by number, and navigation and positioning accuracy will significantly be lifted.
And microstrip antenna has a lot of quite remarkable performances in itself, such as thin profile, light, low cost, easily conformal, easy
Make etc., there is considerable use value in satellite navigation system, readily satisfy the circular polarisation needed for satellite navigation aerial
Characteristic and multi-frequency Characteristic.
Just because of this, wideband is covered the microstrip antenna of double locating system neighbour's frequency ranges research have highly important
Construction value and theory significance.
Content of the invention
It is an object of the invention to provide a kind of structure novelty, compatible Beidou II satellite navigation system B2 of excellent performance
The double locating system crescent moon slot array antenna of the Big Dipper GPS adjacent band of frequency range and GPS satellite navigation system L2 frequency range.
The present invention is provided with medium substrate and lower medium substrate, is provided with two parallel radiation in upper medium substrate upper surface
Paster, the corner of each radiation patch all loads two crescent moon slot-coupled phase controlling structures, crescent moon slot-coupled phase place control
Structure processed is used for controlling antenna element 2 to the difference of orthogonal radiating slot and amplitude, and broadening impedance bandwidth simultaneously adjusts aerial radiation
Polarization characteristic；Two radiation patch are all fed by the way of coaxial line offset-fed, and distributing point is respectively perpendicular and offset institute
In radiation patch center same distance, upper medium substrate lower surface is reflection floor；Lower medium substrate upper surface is feeding network
Floor, the floor of described feeding network is close to upper medium substrate floor turn on, and lower medium substrate lower surface is provided with one-to-two
Power splitter feeding network, is fed to the radiation patch of upper medium substrate by coaxial through-hole, the phase difference output of power splitter is
90°.Power splitter passes through to the amplitude of two radiation patch and the control of phase place, can affect the overall circular polarization characteristics of antenna.
Described upper medium substrate can using double-sided copper-clad ceramic substrate, double-sided copper-clad epoxy composite plate, two-sided cover silver pottery
Substrate or two-sided cover silver-colored epoxy composite plate, upper medium substrate relative dielectric constant be 3.0～9.0.
Described lower medium substrate can using double-sided copper-clad ceramic substrate, double-sided copper-clad epoxy composite plate, two-sided cover silver pottery
Substrate or two-sided cover silver-colored epoxy composite plate, lower dielectric-slab relative dielectric constant be 1.5～6.0.
The profile of described upper medium substrate can be rectangle, and wide is 50.0～86.0mm, and length can be 100～172mm, and thickness can
For 1.60～3.00mm.
The profile of described lower medium substrate can be rectangle, and wide is 50.0～86.0mm, and length can be 100～172mm, and thickness can
For 0.50～2.00mm.
Described radiation patch can using square radiation patch, the length of side of square radiation patch can for 26.0～
48.0mm, the distance between two radiation patch can be 12～20mm.
The distance of described crescent moon slot-coupled phase controlling structure to adjacent side can be 1.80～3.10mm, crescent moon slot-coupled
The center of circle of phase controlling structure is located on the side of radiation patch, and outer arc radius can be 3.60～6.20mm, and interior arc radius can be
2.00～3.40mm, crescent moon is generated outside to inside by away from the corner portion right side, and crescent moon circular arc subtended angle can be 166 °～178 °.
The distance that described coaxial feed point deviates the square radiation patch center that is located can be 7.80～13.5mm.
The wide of described reflection floor is 50.0～86.0mm, and length can be 100～172mm.
The wide of the floor of described feeding network is 50.0～86.0mm, and length can be 100～172mm.
The input of described one-to-two power splitter feeding network is wide to be 2.50～4.30mm, length can for 13.0～
23.0mm, input connects two a quarter impedance transformers, a width of 0.60～1.10mm of impedance transformer, and length can be 25.0
～43.0mm, then connect two transmission lines respectively, the length difference of transmission line can be 24.0～41.6mm, wide for 1.30～
2.10mm, connects the Chip-R of 100 Ω in the middle of two transmission lines.
Compared with conventional microstrip antennas, the present invention has advantage following outstanding and remarkable result：
The present invention adopts corner to load the radiation patch of two crescent moon slot-coupled phase controlling structures, with conventional grooves knot
Structure is compared, and has more preferable circular polarization characteristics, permissible to the distance of adjacent side by adjusting crescent moon slot-coupled phase controlling structure
The matching performance of adjustment antenna, in adjustment crescent moon slot-coupled phase controlling structure, the size of arc radius and outer arc radius is then permissible
Trap degree at adjustment mid frequency, in conjunction with square radiation patch, can cover Beidou II satellite navigation system B2 frequency
Section and GPS satellite navigation system L2 frequency range；The present invention adopts two-element antenna array, can be by controlling the feed width of double base structure
Degree and phase place make that the amplitude of two radiation patch is equal, 90 ° of phase, and then make antenna integrally have good circular polarisation
Characteristic.Return loss of the present invention is little, and in frequency band, most of return loss is below -17.5dB.This antenna structure is novel, performance is excellent
Different, meet triones navigation system and GPS navigation system positions the demand of antenna, can be very good to be applied to high accuracy satellite
Position antenna.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the side schematic view of the embodiment of the present invention.
Fig. 3 is the upper medium substrate upper surface schematic diagram of the embodiment of the present invention.
Fig. 4 is the lower dielectric-slab lower surface schematic diagram of the embodiment of the present invention.
Fig. 5 is the return loss (S of the embodiment of the present invention11) performance map.
Fig. 6 is xoy and xoz face gain pattern during embodiment of the present invention 1.222GHz.In figure coordinate is polar coordinate.
Fig. 7 is that axle ratio during embodiment of the present invention 1.222GHz is schemed.In figure coordinate is polar coordinate.
Specific embodiment
With reference to embodiment and accompanying drawing, the invention will be further described.
With reference to Fig. 1 and 2, in Fig. 1, mark 1 is the upper surface good conductor layer of upper medium substrate, i.e. the radiation patch of upper surface,
In Fig. 2, mark 2 is upper strata high-performance ceramic medium substrate, and in Fig. 2, mark 3 is upper medium substrate lower surface good conductor layer, that is, instead
Penetrate floor.In Fig. 2, mark 4 is lower medium substrate upper surface good conductor layer, i.e. the floor of feeding network, and in Fig. 2, mark 5 is lower floor
High-performance ceramic medium substrate, in Fig. 2, mark 6 is lower medium substrate lower surface good conductor layer, i.e. feeding network.
With reference to Fig. 1 and 3, mark 7 is the Chip-R of 100 Ω, and the dielectric constant of upper medium substrate is 6.15, medium substrate
Profile is rectangle, long Sub2 120 ± 0.1mm, wide Sub 60.0 ± 0.1mm, thick 2.5 ± 0.1mm.Described two square spokes
Length of side P penetrating paster is 45.2 ± 0.1mm.In described crescent moon slot-coupled phase controlling structure arc radius Pr1 be 3.1 ±
0.1mm, outer arc radius Pr are 3.9 ± 0.1mm, are 2.5 ± 0.1mm to adjacent side apart from Load, crescent moon circular arc subtended angle deg is
170°.Described two radiation patch apart from Gap be 16.0 ± 0.1mm.Described distributing point deviates place paster centre distance Fx
For 9.5 ± 0.1mm.
With reference to Fig. 2 and Fig. 4, the dielectric constant of lower medium substrate is 4.4, and thickness is 1.00mm, described one-to-two power splitter
Feeding network is made up of incidence end, a quarter impedance transformer and outfan, the wide W1 of feeding network incidence end be 3.5 ±
0.1mm, long L1 are 19.5 ± 0.1mm, and a quarter impedance transformer L2 is 14.5 ± 0.1mm, and L3 is 13.5 ± 0.1mm, wide
W2 is 0.8 ± 0.1mm, and outer arc radius r1 are 2.0 ± 0.1mm, and interior arc radius r2 are 1.2 ± 0.1mm, outfan one transmission lines
L4 be 5.7 ± 0.1mm, L6 be 45.0 ± 0.1mm, L7 be 7.9 ± 0.1mm, L8 be 16.5 ± 0.1mm, wide 1.6 ± 0.1mm,
The long L4 of another transmission lines is 5.7 ± 0.1mm, and L5 is 39.0 ± 0.1mm, and wide W3 is 1.6 ± 0.1mm.
With reference to Fig. 1 and Fig. 3, the length 120 ± 0.1mm on described reflection floor, wide 60.0 ± 0.1mm.
With reference to Fig. 2 and Fig. 4, described feeding network floor length 120 ± 0.1mm, wide 60.0 ± 0.1mm.
Can be seen that inventive antenna with reference to Fig. 5 in required frequency band 1.205GHz～1.238GHz, return loss S11
It is respectively less than -20dB, the return loss at center frequency point 1.222GHz is -29dB, absolute bandwidth 33MHz, and return loss S11 is little
Wider in the bandwidth of -10dB (i.e. VSWR is less than 2), reach more than 400MHz.
With reference to Fig. 6, it is xoz face gain pattern and xoy face gain pattern during 1.222GHz.
With reference to Fig. 7, it is the axle of antenna during 1.222GHz than figure.
Generally this antenna have that structure is novel, excellent performance and compatible Beidou II satellite navigation system B2 frequency range and
The feature of GPS satellite navigation system L2 frequency range.
Referring to table 1, table 1 give the manufacture mismachining tolerance of the present invention to antenna 1.222GHz impact situation.
Table 1
Note：In table 1, data certain redundancy, has certain relatedness, provide is equalization characteristic, can root between each parameter
Complete particular design according to needing optimum structural parameter.
Claims (10)
1. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band it is characterised in that be provided with medium substrate and under
Medium substrate, is provided with two parallel radiation patch in upper medium substrate upper surface, and the corner of each radiation patch all loads two
Individual crescent moon slot-coupled phase controlling structure, crescent moon slot-coupled phase controlling structure is used for controlling antenna element 2 to orthogonal spoke
Penetrate difference and the amplitude in gap, broadening impedance bandwidth simultaneously adjusts the polarization characteristic of aerial radiation；Two radiation patch are all using same
The mode of axis offset-fed feeds, and distributing point is respectively perpendicular and offset place radiation patch center same distance, upper medium base
Plate lower surface is reflection floor；Lower medium substrate upper surface is the floor of feeding network, the floor of described feeding network and upper Jie
Matter substrate floor is close to turn on, and lower medium substrate lower surface is provided with one-to-two power splitter feeding network, by coaxial through-hole to upper
The radiation patch feed of medium substrate, the phase difference output of power splitter is 90 °.
2. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
Upper medium substrate using double-sided copper-clad ceramic substrate, double-sided copper-clad epoxy composite plate, two-sided cover silver-colored ceramic substrate or two-sided cover silver
Epoxy composite plate, upper medium substrate relative dielectric constant is 3.0～9.0.
3. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
Lower medium substrate using double-sided copper-clad ceramic substrate, double-sided copper-clad epoxy composite plate, two-sided cover silver-colored ceramic substrate or two-sided cover silver
Epoxy composite plate, lower dielectric-slab relative dielectric constant is 1.5～6.0.
4. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
The profile of upper medium substrate is rectangle, a width of 50.0～86.0mm, a length of 100～172mm, and thick is 1.60～3.00mm.
5. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
The profile of lower medium substrate is rectangle, a width of 50.0～86.0mm, a length of 100～172mm, and thick is 0.50～2.00mm.
6. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
Using square radiation patch, the length of side of square radiation patch is 26.0～48.0mm to radiation patch, two radiation patch it
Between distance be 12～20mm.
7. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
The distance of crescent moon slot-coupled phase controlling structure to adjacent side is 1.80～3.10mm, crescent moon slot-coupled phase controlling structure
The center of circle be located at radiation patch side on, outer arc radius be 3.60～6.20mm, interior arc radius be 2.00～3.40mm, crescent moon by
Generate outside to inside away from the corner portion right side, crescent moon circular arc subtended angle is 166 °～178 °.
8. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
The distance that coaxial feed point deviates the square radiation patch center that is located is 7.80～13.5mm.
9. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that described
A width of 50.0～86.0mm, a length of 100～172mm on reflection floor；
A width of 50.0～86.0mm on the floor of described feeding network, a length of 100～172mm.
10. the double locating system crescent moon slot array antenna of Big Dipper GPS adjacent band as claimed in claim 1 is it is characterised in that institute
State a width of 2.50～4.30mm of input of one-to-two power splitter feeding network, a length of 13.0～23.0mm, input connects two
Individual a quarter impedance transformer, a width of 0.60～1.10mm of impedance transformer, a length of 25.0～43.0mm, then connect two respectively
Transmission lines, the length difference of transmission line is to connect one in the middle of 24.0～41.6mm, a width of 1.30～2.10mm, two transmission lines
The Chip-R of 100 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610833271.4A CN106384880B (en) | 2016-09-20 | 2016-09-20 | The double locating system crescent moon slot array antennas of Beidou GPS adjacent band |
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|---|---|---|---|
| CN201610833271.4A CN106384880B (en) | 2016-09-20 | 2016-09-20 | The double locating system crescent moon slot array antennas of Beidou GPS adjacent band |
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| CN106384880B CN106384880B (en) | 2019-02-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425262A (en) * | 2017-06-13 | 2017-12-01 | 东南大学 | The arm spiral circular polarized antenna of slot-coupled plane four being produced on glass dial plate |
| CN112259963A (en) * | 2020-11-04 | 2021-01-22 | 北京微纳星空科技有限公司 | Satellite data transmission antenna |
| CN112385084A (en) * | 2018-07-05 | 2021-02-19 | 东友精细化工有限公司 | Antenna structure and display device comprising same |
| CN112510354A (en) * | 2020-11-23 | 2021-03-16 | 北京字节跳动网络技术有限公司 | Antenna and electronic equipment |
| CN113964522A (en) * | 2021-09-27 | 2022-01-21 | 华南理工大学 | Miniaturized differential feed dual-polarized C-band patch antenna |
| CN114336043A (en) * | 2022-01-13 | 2022-04-12 | 广东分数维无线科技有限公司 | Miniaturized integrated phased-array antenna and design method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425262A (en) * | 2017-06-13 | 2017-12-01 | 东南大学 | The arm spiral circular polarized antenna of slot-coupled plane four being produced on glass dial plate |
| CN107425262B (en) * | 2017-06-13 | 2023-12-22 | 东南大学 | Slot coupling plane four-arm spiral circularly polarized antenna manufactured on glass dial plate |
| CN112385084A (en) * | 2018-07-05 | 2021-02-19 | 东友精细化工有限公司 | Antenna structure and display device comprising same |
| US11791539B2 (en) | 2018-07-05 | 2023-10-17 | Dongwoo Fine-Chem Co., Ltd. | Antenna structure and display device including the same |
| CN112259963A (en) * | 2020-11-04 | 2021-01-22 | 北京微纳星空科技有限公司 | Satellite data transmission antenna |
| CN112510354A (en) * | 2020-11-23 | 2021-03-16 | 北京字节跳动网络技术有限公司 | Antenna and electronic equipment |
| CN112510354B (en) * | 2020-11-23 | 2023-03-24 | 抖音视界有限公司 | Antenna and electronic equipment |
| CN113964522A (en) * | 2021-09-27 | 2022-01-21 | 华南理工大学 | Miniaturized differential feed dual-polarized C-band patch antenna |
| CN114336043A (en) * | 2022-01-13 | 2022-04-12 | 广东分数维无线科技有限公司 | Miniaturized integrated phased-array antenna and design method thereof |
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