CN110098467A - A kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth - Google Patents
A kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth Download PDFInfo
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- CN110098467A CN110098467A CN201910351811.9A CN201910351811A CN110098467A CN 110098467 A CN110098467 A CN 110098467A CN 201910351811 A CN201910351811 A CN 201910351811A CN 110098467 A CN110098467 A CN 110098467A
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- medium substrate
- corner cut
- probe
- microstrip antenna
- circular polarization
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/285—Aircraft wire antennas
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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
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/40—Radiating elements coated with or embedded in protective material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Waveguide Aerials (AREA)
Abstract
A kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth, is related to unmanned plane technical field of satellite navigation；Including medium substrate, probe, metal floor and sub-miniature A connector；Wherein, metal floor is horizontal positioned square platy structure；Sub-miniature A connector is axially fixedly mounted on the lower surface of metal floor vertically；Medium substrate is square platy structure；Medium substrate lies in a horizontal plane in the top of metal floor；Probe is axially fixedly mounted between medium substrate and metal floor vertically；The axial top of probe passes through medium substrate, and the axial top of probe is parallel with the upper surface of medium substrate；The present invention has effectively expanded the impedance bandwidth of circular polarized antenna, has reduced antenna to the aerodynamic effects of unmanned plane, improves the positioning accuracy of system, at the same also with small size, lightweight, low cost advantage.
Description
Technical field
The present invention relates to a kind of unmanned plane technical field of satellite navigation, especially a kind of more orthogonal mode fusion broadening bandwidth
Single feedback single layer circular polarization microstrip antenna.
Background technique
With the continuous development of Technique of Satellite Navigation and Positioning, satellite navigation industry become after mobile communication and internet it
Afterwards, the most fast information industry of global evolution.Each big country, the world and tissue all in the satellite navigation and location system for actively developing oneself,
Wherein influence GLONASS system, the Galileo system of European Union and the Beidou in China that maximum has the GPS system in the U.S., Russia
System.In order to improve the positioning accuracy of user and from the constraint of individual system, multisystem is simultaneously deposited, the satellite navigation that multimode is compatible
Terminal becomes following research direction.Important component one of of the terminal antenna as satellite navigation system, to the property of whole system
There can be very important influence.
In UAV Navigation System, in existing satellite navigation system, the GPS in the U.S., Russia GLONASS due to
Starting is early, and technology is more mature, has been widely used.The Galileo in Europe and the Beidou of China are also in rapid development,
Service is provided for partial region.When satellite navigation and location system measures positioning, the reliability of observed result mainly depends on
It is general that at least 3 satellites is required to participate in positioning in the number for participating in location Calculation satellite.Receivable number of satellites is more,
The reliability of its observed result is higher, and it is also more accurate to position.Global Satellite Navigation System theoretically can at any time,
Any place provides navigator fix service for the user in global range, but in city housing-group, mountain area or forest, due to
Multi-path problem is serious, and satellite-signal is seriously blocked, and single navigation system will not be able to satisfy positioning accuracy demand.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, provide using more orthogonal modes fusion broadening bandwidth
Single feedback single layer circular polarization microstrip antenna, has effectively expanded the impedance bandwidth of circular polarized antenna, has reduced antenna to unmanned plane
Aerodynamic effects, improve the positioning accuracy of system, at the same also with small size, lightweight, low cost advantage.
Above-mentioned purpose of the invention is achieved by following technical solution:
A kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth, including medium substrate, probe, gold
Possession plate and sub-miniature A connector；Wherein, metal floor is horizontal positioned square platy structure；The axial vertical fixed installation of sub-miniature A connector
In the lower surface of metal floor；Medium substrate is square platy structure；Medium substrate lies in a horizontal plane in the top of metal floor；It visits
Needle shaft to being fixedly mounted between medium substrate and metal floor vertically；The axial top of probe passes through medium substrate, and probe
Axial top it is parallel with the upper surface of medium substrate.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the medium substrate
Side length l is 47-51mm；With a thickness of 0.2-0.3mm；The thickness error of medium substrate is less than 0.05mm；Medium substrate is three-layered node
Structure；Middle layer is dielectric layer；Upper and lower two layers is metal layer；Wherein, dielectric layer use dielectric constant for 3.38 material；Gold
Belong to what copper product layer uses；The vertical distance h of medium substrate and metal floor is 6mm.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the metal floor
Side length be 65mm；With a thickness of 1.5mm；Using what aluminum material.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the probe is column
Shape structure；The diameter of probe is 2-2.2mm；Probe diameter error is less than 0.1mm；The axial length of probe is 12-13mm.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the medium substrate
The metal layer of upper surface be provided with 4 rectangular recess and corner cut square groove；Wherein, corner cut square groove is located at medium substrate
The center of upper surface；4 rectangular recess are uniformly circumferentially positioned at the side edge of the upper surface of medium substrate.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, each rectangular recess
Long side be overlapped with the side of medium substrate upper surface；The long side length l of each rectangular recesstFor 17-18mm；Bond length wt
For 10mm；Groove depth is 0.02mm；The side of rectangular recess and the spacing h of medium substrate upper surface side2For 2-2.2mm.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the microstrip antenna
It further include 4 rectangular patches；Rectangular patch uses copper product；It is corresponding in each rectangular recess to place 1 rectangular patch；Rectangle patch
The size of piece and the size of rectangular recess are consistent.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, corner cut square groove
For the square groove for diagonally cutting off isosceles right triangle respectively；The long l of the straight flange of corner cut square groovepFor 15-16mm；Excision
The right angle side length c of right angled trianglepFor 3mm；The groove depth of corner cut square groove is 0.02mm；The straight flange of corner cut square groove is away from square
Shape patch side distance h1For 5mm.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the microstrip antenna
It further include corner cut patch；Corner cut patch is correspondingly placed in corner cut square groove；The size and corner cut square groove of corner cut patch
Size it is consistent.
In a kind of single feedback single layer circular polarization microstrip antenna of above-mentioned more orthogonal mode fusion broadening bandwidth, the corner cut patch
Using copper product；Asymmetric U-shaped through-hole and square annular through-hole are provided on corner cut patch；Wherein, the long side of asymmetric U-shaped through-hole
Length lu1For 13-14mm；Bond length lu2For 3mm；Bottom edge length wuFor 7mm；The groove width m of asymmetric U-shaped through-holeuFor 1mm；No
The bottom edge of symmetrical U-shaped through-hole is parallel with the side of corner cut square groove；And bottom edge and the corner cut square groove of asymmetric U-shaped through-hole
Side spacing huFor 2-2.5mm；The outer side length t of square annular through-hole2For 3-4mm；Interior side length t1For 2-3mm；Square annular through-hole
Center is the top of probe；Distance Y of the probe away from corner cut square grooveuFor 5-5.2mm.
The invention has the following advantages over the prior art:
(1) present invention has small size, lightweight, the advantage that multisystem is compatible, inexpensive, simultaneously because institute in this patent
It is related to antenna using single-layer medium substrate, single SMA coaxial feed, to realize antenna structure complexity substantially
Degree reduces；
(2) present invention is effectively expanded by using more orthogonal mode integration technologies and slot-coupled apex drive technology
The axial ratio bandwidth and impedance bandwidth of circular polarization microstrip antenna antenna, so that whole system be enable to receive bigger frequency range
Interior navigation signal；
(3) present invention spy poor relative to Conventional wide band circular polarization microstrip antenna directional diagram and yield value stability
Point, the present invention in involved antenna in broadband have stable antenna pattern and yield value；
(4) present invention uses gold-plated technique in antenna surface metal layer, so that the antenna has under circumstances
Stronger inoxidizability, thus by a relatively large margin improve the service life of antenna, while having expanded the use of unmanned plane carrier
Environmental field.
Detailed description of the invention
Fig. 1 is microstrip antenna side view of the present invention；
Fig. 2 is present media substrate top view.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments:
The present invention provides a kind of a kind of Broadband Circular Polarization Microstrip Antenna for proposing three orthogonal modes, using micro- in traditional corner cut
The rectangle parasitic patch arranged with 4 according to 0 degree, 90 degree, 180 degree, 270 degree of sequences with the asymmetric U-shaped gap of introducing on antenna
Method come the method for having motivated multipair orthogonal modes, and having combined aperture-coupled, adding radius at feeding centre is about
The annular gap of centre frequency corresponding wavelength 1/10th, the impedance bandwidth of Lai Zhankuan antenna.
It is as shown in Figure 1 microstrip antenna side view, as seen from the figure, a kind of single feedback single layer of more orthogonal mode fusion broadening bandwidth
Circular polarization microstrip antenna, including medium substrate 1, probe 5, metal floor 6 and sub-miniature A connector 8；Wherein, metal floor 6 is put for level
The square platy structure set；The axial lower surface for being fixedly mounted on metal floor 6 vertically of sub-miniature A connector 8；Medium substrate 1 is rectangular
Plate structure；Medium substrate 1 lies in a horizontal plane in the top of metal floor 6；Probe 5 is axial to be fixedly mounted on medium substrate 1 vertically
Between metal floor 6；The axial top of probe 5 passes through medium substrate 1, and the upper table on the axial top and medium substrate 1 of probe 5
Face is parallel.
Wherein, 1 side length l of medium substrate is 47-51mm；With a thickness of 0.2-0.3mm；The thickness error of medium substrate 1 is less than
0.05mm；In order to avoid the frequency shift (FS) of antenna；Medium substrate 1 is three-decker；Middle layer is dielectric layer；Upper and lower two layers
For metal layer；Wherein, dielectric layer use dielectric constant for 3.38 material；Metal layer uses any copper product；Medium substrate 1 with
The vertical distance h of metal floor 6 is 6mm.In order to improve the inoxidizability of antenna in the presence of a harsh environment, using in antenna surface layer
Gold-plated technique on metal, to effectively raise the inoxidizability of antenna.Finally, use deviation from circular from 0.1mm it
Interior processing technology, to ensure that the circular polarization characteristics of antenna.The side length of metal floor 6 is 65mm；With a thickness of 1.5mm；It adopts
With what aluminum material.Probe 5 is column structure；The diameter of probe 5 is 2-2.2mm；5 diameter error of probe is less than 0.1mm；This sets
Meter is more advantageous to the radiation efficiency for improving antenna, at the same time, in order to avoid the frequency shift (FS) of antenna, uses error and exists
Medium substrate processing technology within 0.1mm.The axial length of probe 5 is 12-13mm.
It is illustrated in figure 2 medium substrate top view, as seen from the figure, the metal layer of the upper surface of the medium substrate 1 is arranged
There are 4 rectangular recess 11 and corner cut square groove 12；Wherein, corner cut square groove 12 is located at the center of 1 upper surface of medium substrate
Position；4 rectangular recess 11 are uniformly circumferentially positioned at the side edge of the upper surface of medium substrate 1.The length of each rectangular recess 11
Side is overlapped with the side of 1 upper surface of medium substrate；The long side length l of each rectangular recess 11tFor 17-18mm；Bond length wtFor
10mm；Groove depth is 0.02mm；The side of rectangular recess 11 and the spacing h of 1 upper surface side of medium substrate2For 2-2.2mm.
The microstrip antenna further includes 4 rectangular patches 4；Rectangular patch 4 uses copper product；It is right in each rectangular recess 11
1 rectangular patch 4 should be placed；The size of rectangular patch 4 is consistent with the size of rectangular recess 11.
Corner cut square groove 12 is the diagonal square groove for cutting off isosceles right triangle respectively；Corner cut square groove 12
The long l of straight flangepFor 15-16mm；The right angle side length c of the right angled triangle of excisionpFor 3mm；The groove depth of corner cut square groove 12 is
0.02mm；The straight flange of corner cut square groove 12 is away from 4 side distance h of rectangular patch1For 5mm.The microstrip antenna further includes corner cut
Patch 2；Corner cut patch 2 is correspondingly placed in corner cut square groove 12；The size of corner cut patch 2 and the ruler of corner cut square groove 12
It is very little consistent.
Corner cut patch 2 uses copper product；Asymmetric U-shaped through-hole 3 and square annular through-hole 7 are provided on corner cut patch 2；Its
In, the long side length l of asymmetric U-shaped through-hole 3u1For 13-14mm；Bond length lu2For 3mm；Bottom edge length wuFor 7mm；It is asymmetric
The groove width m of U-shaped through-hole 3uFor 1mm；The bottom edge of asymmetric U-shaped through-hole 3 is parallel with the side of corner cut square groove 12；And it is asymmetric
The bottom edge of U-shaped through-hole 3 and the side spacing h of corner cut square groove 12uFor 2-2.5mm；The outer side length t of square annular through-hole 72For 3-
4mm；Interior side length t1For 2-3mm；The center of square annular through-hole 7 is the top of probe 5；Antenna is set to obtain good impedance matching,
The antenna is finally set to obtain the characteristic of wideband covering.Distance Y of the probe 5 away from corner cut square groove 12uFor 5-5.2mm.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (10)
1. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth, it is characterised in that: including medium base
Plate (1), probe (5), metal floor (6) and sub-miniature A connector (8)；Wherein, metal floor (6) is horizontal positioned rectangular plate knot
Structure；Sub-miniature A connector (8) is axially fixedly mounted on the lower surface of metal floor (6) vertically；Medium substrate (1) is square platy structure；
Medium substrate (1) lies in a horizontal plane in the top of metal floor (6)；Probe (5) axially be fixedly mounted on vertically medium substrate (1) with
Between metal floor (6)；The axial top of probe (5) passes through medium substrate (1), and the axial top of probe (5) and medium substrate
(1) upper surface is parallel.
2. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 1,
Be characterized in that: medium substrate (1) the side length l is 47-51mm；With a thickness of 0.2-0.3mm；The thickness error of medium substrate (1)
Less than 0.05mm；Medium substrate (1) is three-decker；Middle layer is dielectric layer；Upper and lower two layers is metal layer；Wherein, medium
Layer use dielectric constant for 3.38 material；Metal layer uses any copper product；Medium substrate (1) is perpendicular with metal floor (6)
Directly distance h is 6mm.
3. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 2,
Be characterized in that: the side length of the metal floor (6) is 65mm；With a thickness of 1.5mm；Using what aluminum material.
4. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 3,
Be characterized in that: the probe (5) is column structure；The diameter of probe (5) is 2-2.2mm；Probe (5) diameter error is less than
0.1mm；The axial length of probe (5) is 12-13mm.
5. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 4,
Be characterized in that: the metal layer of the upper surface of the medium substrate (1) is provided with 4 rectangular recess (11) and corner cut square groove
(12)；Wherein, corner cut square groove (12) is located at the center of medium substrate (1) upper surface；4 rectangular recess (11) are uniform
It is circumferentially positioned at the side edge of the upper surface of medium substrate (1).
6. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 5,
Be characterized in that: the long side of each rectangular recess (11) is overlapped with the side of medium substrate (1) upper surface；Each rectangular recess (11)
Long side length ltFor 17-18mm；Bond length wtFor 10mm；Groove depth is 0.02mm；The side of rectangular recess (11) and medium base
The spacing h of plate (1) upper surface side2For 2-2.2mm.
7. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 6,
Be characterized in that: the microstrip antenna further includes 4 rectangular patches (4)；Rectangular patch (4) uses copper product；Each rectangular recess
(11) corresponding in place 1 rectangular patch (4)；The size of rectangular patch (4) is consistent with the size of rectangular recess (11).
8. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 7,
Be characterized in that: corner cut square groove (12) is the diagonal square groove for cutting off isosceles right triangle respectively；Corner cut square groove
(12) the long l of straight flangepFor 15-16mm；The right angle side length c of the right angled triangle of excisionpFor 3mm；The slot of corner cut square groove (12)
Depth is 0.02mm；The straight flange of corner cut square groove (12) is away from rectangular patch (4) side distance h1For 5mm.
9. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 8,
Be characterized in that: the microstrip antenna further includes corner cut patch (2)；Corner cut patch (2) is correspondingly placed at corner cut square groove (12)
It is interior；The size of corner cut patch (2) is consistent with the size of corner cut square groove (12).
10. a kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth according to claim 9,
Be characterized in that: the corner cut patch (2) uses copper product；Asymmetric U-shaped through-hole (3) He Fanghuan is provided on corner cut patch (2)
Shape through-hole (7)；Wherein, the long side length l of asymmetric U-shaped through-hole (3)u1For 13-14mm；Bond length lu2For 3mm；Bottom side length
Spend wuFor 7mm；The groove width m of asymmetric U-shaped through-hole (3)uFor 1mm；The bottom edge of asymmetric U-shaped through-hole (3) and corner cut square groove
(12) side is parallel；And the side spacing h on the bottom edge and corner cut square groove (12) of asymmetric U-shaped through-hole (3)uFor 2-
2.5mm；The outer side length t of square annular through-hole (7)2For 3-4mm；Interior side length t1For 2-3mm；The center of square annular through-hole (7) is probe
(5) top；Distance Y of the probe (5) away from corner cut square groove (12)uFor 5-5.2mm.
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| CN201910351811.9A CN110098467A (en) | 2019-04-28 | 2019-04-28 | A kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth |
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| CN201910351811.9A CN110098467A (en) | 2019-04-28 | 2019-04-28 | A kind of single feedback single layer circular polarization microstrip antenna of more orthogonal mode fusion broadening bandwidth |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916913A (en) * | 2010-07-26 | 2010-12-15 | 天津职业技术师范大学 | Ultra-wide band microstrip patch antenna |
| CN104868239A (en) * | 2015-04-22 | 2015-08-26 | 哈尔滨工业大学 | Single-feed circular slit loading broadband circular polarization microstrip antenna |
| CN104868243A (en) * | 2015-05-28 | 2015-08-26 | 电子科技大学 | Dual-band wearable antenna with switchable working modes |
| CN206022635U (en) * | 2016-09-13 | 2017-03-15 | 航天恒星科技有限公司 | A kind of Ka frequency ranges circular polarisation phased array antenna |
| US20170170568A1 (en) * | 2015-12-10 | 2017-06-15 | Taoglas Group Holdings | Dual-frequency patch antenna |
-
2019
- 2019-04-28 CN CN201910351811.9A patent/CN110098467A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916913A (en) * | 2010-07-26 | 2010-12-15 | 天津职业技术师范大学 | Ultra-wide band microstrip patch antenna |
| CN104868239A (en) * | 2015-04-22 | 2015-08-26 | 哈尔滨工业大学 | Single-feed circular slit loading broadband circular polarization microstrip antenna |
| CN104868243A (en) * | 2015-05-28 | 2015-08-26 | 电子科技大学 | Dual-band wearable antenna with switchable working modes |
| US20170170568A1 (en) * | 2015-12-10 | 2017-06-15 | Taoglas Group Holdings | Dual-frequency patch antenna |
| CN206022635U (en) * | 2016-09-13 | 2017-03-15 | 航天恒星科技有限公司 | A kind of Ka frequency ranges circular polarisation phased array antenna |
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| JIANJUN WU等: "Broadband Circularly Polarized Patch Antenna With Parasitic Strips", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
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Application publication date: 20190806 |