CN105048074A - Satellite navigation circularly polarized microstrip antenna - Google Patents
Satellite navigation circularly polarized microstrip antenna Download PDFInfo
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- CN105048074A CN105048074A CN201510490302.6A CN201510490302A CN105048074A CN 105048074 A CN105048074 A CN 105048074A CN 201510490302 A CN201510490302 A CN 201510490302A CN 105048074 A CN105048074 A CN 105048074A
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Abstract
The invention provides a satellite navigation circularly polarized microstrip antenna. A triangular Y-shaped groove microstrip radiation unit is adopted, which has the characteristics of high radiation efficiency, high low-elevation gain, wide band, wide wave beam and minimization, and is particularly suitable for receiving low-elevation satellite signals and increasing the center accuracy of an antenna phase. The satellite navigation circularly polarized microstrip antenna comprises a metal radiant panel, a dielectric substrate and a metal reflection bottom plate, wherein the metal radiant panel and the metal reflection bottom plate are arranged on the upper surface and the lower surface of the dielectric substrate respectively; the metal radiant panel is triangular; the triangular radiant panel is provided with a Y-shaped groove; the Y-shaped groove comprises three strip-shaped open grooves; the starting ends of the three strip-shaped open grooves converge in an intersecting way, and the tail ends point to the three edges of a triangle respectively; the triangular radiant panel provided with the Y-shaped groove is used for controlling surface current flow, and radiating circularly polarized waves; and the edges of the strip-shaped open grooves of the Y-shaped groove are provided with coaxial feeding points for feeding electromagnetic wave signals.
Description
Technical field
The invention belongs to technical field of satellite navigation, special formula relates to a kind of satellite navigation circular polarization microstrip antenna.Be applicable to the various navigational satellite systems comprising the gps system of the U.S., European Galileo system, Muscovite GLONASS system, Chinese dipper system.
Background technology
Satellite navigation aerial is generally divided into linear polarization and circular polarization two kinds from polarization mode.Linear polarized antenna implementation is simple, is generally used for mobile phone etc. in the not high amateur navigator of positioning accuracy request.And generally adopt circular polarized antenna in the professional navigator such as satellite navigation receiver.At present, GPS System in USA, Russian GLONASS system, the dipper system of China all adopts the form of circularly polarised wave to launch an artificial satellite signal.Circularly polarised wave has multiple advantage, such as, can be realized the isolation of receiving and transmitting signal by left-right-hand circular polarization, facilitate shipping vehicle to receive in case of motion, also facilitates navigation satellite and neighbouring same track non-navigational satellite to realize polarization-compatible.In prior art, circular polarized antenna generally adopts microstrip antenna to realize, because microstrip antenna technical maturity, manufactures simple, is easy to integrated.Microstrip antenna is generally by micro-band radiating element, bearing medium, reflected bottom plate, and current feed terminal forms.Wherein modal micro-band radiating element is rectangular microstrip radiating element, and rectangular microstrip antenna structure is simple, technical maturity, but is also faced with the problems such as volume is large, gain is low, narrow bandwidth, and phase center precision is poor.Current Antenna Design generally faces miniaturized challenge, and the size of rectangular microstrip antenna is often far beyond the demand of client.General solution is the medium using high-k, realizes the object reducing antenna element size.Use the way of the medium of high-k, can sacrifice the gain of antenna, radiation efficiency and axial ratio, antenna beamwidth narrows.
Summary of the invention
The present invention is directed to defect and the deficiency of prior art existence, a kind of satellite navigation circular polarization microstrip antenna is proposed, adopt the micro-band radiating element of triangle Y shape groove, there is high radiation efficiency, high low elevation gain, broadband, broad beam, miniaturized feature, is especially applicable to receiving low elevation angle satellite-signal, improves antenna phase center precision.
Technical scheme of the present invention is:
1. a satellite navigation circular polarization microstrip antenna, is characterized in that, comprises microstrip antenna metal radiant panel, medium substrate and metallic reflection base plate, and described metal radiant panel and metallic reflection base plate are arranged at upper surface and the lower surface of medium substrate respectively; The shape of described metal radiant panel is triangle, triangle radiant panel has Y shape groove, and described Y shape groove comprises three bar shaped flutings, and the initiating terminal of described three bar shapeds fluting intersects to be assembled, and end points to three sides of a triangle respectively; The described triangle radiant panel with Y shape groove, for control surface current flowing, gives off circularly polarised wave; The bar shaped fluting edge of described Y shape groove arranges coaxial feed point, for feed-in electromagnetic wave signal.
2. the shape of microstrip antenna metal radiant panel described in comprises isosceles triangle, equilateral triangle or all unequal sealene triangle of the three limit length of sides, and three bar shaped flutings of described Y shape groove intersect the intersection point that the initiating terminal assembled is Atria bar inner interweaver.
3. the shape of metal radiant panel described in is equilateral triangle, and the radius of circle scope of described equilateral triangle circumscribed circle is between 0.3 λ ~ 0.5 λ, and 1 λ is an Antenna Operation center frequency point wavelength in free space.
4. the length of three flutings of Y shape groove described in is different, and be arranged in order with long, medium and short in the direction of the clock or by counter clockwise direction, length range is generally between 0.1 λ ~ 0.7 λ.
5. the width range of three flutings of Y shape groove described in is generally between 0.002 λ ~ 0.2 λ, and the bandwidth of operation of antenna is directly proportional to the width of fluting.
6. the position of distributing point described in is on the left side edge of the longest fluting or right edge edge, and can adjust along the edge of fluting, the range distance triangle inner center of adjustment is generally between 0.1 λ ~ 0.5 λ; By adjusting the position adjustment antenna impedance of distributing point, antenna impedance is adjusted to 50 ohm, to realize the impedance matching of antenna and rear class radio-frequency devices.
7. the end of three bar shaped flutings of Y shape groove described in is arc groove structure, for auxiliary extended antenna bandwidth of operation.
8. medium substrate described in selects high dielectric constant material, to reduce the size of described microstrip antenna radiant panel.
9. dielectric substrate thickness scope described in is selected between 0.01 λ ~ 0.1 λ, to improve radiation efficiency and the bandwidth of operation of antenna.
10. air described in, between microstrip antenna metal radiant panel and metallic reflection base plate, also can be used to serve as dielectric-slab.
Technique effect of the present invention:
A kind of satellite navigation circular polarization microstrip antenna that the present invention proposes, adopts the micro-band radiating element of triangle Y shape groove, has high radiation efficiency, high low elevation gain, broadband, broad beam, miniaturized feature, is especially applicable to receiving low elevation angle satellite-signal, improves antenna phase center precision.There is following characteristics:
1. the shape of metal radiation unit is triangle, and compared to the radiating element of other shapes, leg-of-mutton area is minimum, is conducive to reducing antenna size.
2. radiating element has Y shape groove, the initiating terminal of three bar shaped flutings intersects to be assembled, and end points to three sides of a triangle respectively, and arranges coaxial feed point at the fluting edge of Y shape groove; Utilize Y shape groove to control the flowing of radiating element surface current, form phase difference from distributing point to triangle radiating element three summits, differ 120 degree successively, electric current flows through leg-of-mutton three summits successively, gives off circularly polarised wave.
The end of three bar shapeds fluting of 3.Y shape groove is also set to arc groove structure, can the bandwidth of operation of extended antenna.
4. triangle Y shape slot antenna of the present invention has higher beamwidth and radiation efficiency: 3dB beamwidth is about 90 degree, and radiation efficiency can reach 85%
Accompanying drawing explanation
Fig. 1 is circular polarization microstrip antenna structural representation of the present invention.
Fig. 2 is the standing wave pattern of circular polarization microstrip antenna of the present invention.
Fig. 3 is the directional diagram of circular polarization microstrip antenna of the present invention.
Fig. 4 is the surface current flow graph of circular polarization microstrip antenna of the present invention.
Reference numeral lists as follows: 1-triangle metal radiant panel, 2-Y shape groove, 3-distributing point, 4-medium substrate, 5-metallic reflection base plate.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
As shown in Figure 1, be circular polarization microstrip antenna structural representation of the present invention.A kind of satellite navigation circular polarization microstrip antenna, comprise microstrip antenna metal radiant panel 1, medium substrate 4 and metallic reflection base plate 5, metal radiant panel 1 and metallic reflection base plate 5 are arranged at upper surface and the lower surface of medium substrate 4 respectively; The medium substrate 4 of the present embodiment and metallic reflection base plate 5 are circular, the shape of metal radiant panel 1 is triangle, triangle metal radiant panel 1 has Y shape groove 2, and Y shape groove comprises three bar shaped flutings, article three, the initiating terminal of bar shaped fluting intersects convergence, and end points to three sides of a triangle respectively; The bar shaped fluting edge of Y shape groove arranges coaxial feed point 3, for feed-in electromagnetic wave signal; Utilize Y shape groove to control the flowing of triangle radiant panel surface current, form phase difference from distributing point to triangle radiant panel three summits, differ 120 degree successively, electric current flows through leg-of-mutton three summits successively, gives off circularly polarised wave.
Wherein, the shape of triangle metal radiant panel 1 comprises isosceles triangle, equilateral triangle or all unequal sealene triangle of the three limit length of sides, and three bar shaped flutings of Y shape groove intersect the intersection point that the initiating terminal assembled should be Atria bar inner interweaver; In the present embodiment, the shape of metal radiant panel is equilateral triangle, and the radius of circle scope of equilateral triangle circumscribed circle is (1 λ is an Antenna Operation center frequency point wavelength in free space) between 0.3 λ ~ 0.5 λ; The length of three flutings of Y shape groove is different, and be arranged in order with long, medium and short in the direction of the clock or by counter clockwise direction, length range is generally between 0.1 λ ~ 0.7 λ; In addition, the bandwidth of operation of antenna is directly proportional to the width of fluting, and the width range of three flutings of Y shape groove generally between 0.002 λ ~ 0.2 λ, and has arc groove at the end of three bar shaped flutings of Y shape groove, helps out to extended antenna bandwidth of operation.The position of distributing point 3 is on the left side edge of the longest fluting or right edge edge, and can adjust along the edge of fluting, the range distance triangle inner center of adjustment is generally between 0.1 λ ~ 0.5 λ; By adjusting the position adjustment antenna impedance of distributing point, antenna impedance is adjusted to 50 ohm, to realize the impedance matching of antenna and rear class radio-frequency devices; The polarization mode of the left-handed or dextrorotation of antenna can be adjusted by the length of three bar shapeds flutings of equal proportion adjustment Y shape groove and the position of distributing point 3;
The polarization mode of antenna has four kinds of situations: first the longest groove in 6 o'clock direction,
The first situation be distributing point 3 on the longest groove right edge edge, three grooves by long clockwise, in, short arrangement, antenna is left-handed polarized wave;
The second situation be distributing point 3 on the longest groove right edge edge, three grooves by long counterclockwise, in, short arrangement, antenna is right-handed polarized wave;
The third situation be distributing point 3 at the longest groove left side edge, three grooves by long clockwise, in, short arrangement, antenna is right-handed polarized wave;
4th kind of situation be distributing point 3 at the longest groove left side edge, three grooves by long counterclockwise, in, short arrangement, antenna is left-handed polarized wave.
In addition, can also by the size selecting the medium substrate 4 of differing dielectric constant to adjust triangle Y shape groove metal radiant panel 1, medium substrate 4 can select high dielectric constant material, to reduce the size of described microstrip antenna radiant panel.And the thickness of medium substrate 4 also affects radiation efficiency and the bandwidth of operation of antenna, the present embodiment dielectric substrate thickness scope is selected between 0.01 λ ~ 0.1 λ, to improve radiation efficiency and the bandwidth of operation of antenna.Also air can be used between microstrip antenna metal radiant panel and metallic reflection base plate to serve as dielectric-slab, do not use medium substrate.
Fig. 2 is the standing wave pattern of circular polarization microstrip antenna of the present invention.Ordinate represents standing-wave ratio, and abscissa is frequency, and function curve represents the standing-wave ratio of antenna on each Frequency point.Standing-wave ratio ideal value equals 1, and represent that the impedance of feeder line and antenna is mated completely, now high-frequency energy is all gone out by aerial radiation, does not have the reflection loss of energy; When standing-wave ratio is infinitely great, represent total reflection, energy does not radiate completely;
Fig. 3 is the directional diagram of circular polarization microstrip antenna of the present invention.Antenna pattern refers to from antenna a distance, the figure that the relative field strength (normalization modulus value) of radiation field changes with direction, radial coordinate (-20 ~ 10) represents antenna gain, represent with dB, angle coordinate represents aerial radiation or receives electromagnetic angle, function curve represents day alignment all directions radiation or receives the power of electromagnetic wave ability, represents with dB.
Fig. 4 is the surface current flow graph of circular polarization microstrip antenna of the present invention.Can observe, electric current, along antenna surface clockwise flow, gives off circularly polarised wave.
It should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore, although this specification and embodiment have been described in detail to the invention, it will be appreciated by those skilled in the art that and still can modify to the invention or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, it is all encompassed in the middle of the protection range of the invention patent.
Claims (10)
1. a satellite navigation circular polarization microstrip antenna, is characterized in that, comprises microstrip antenna metal radiant panel, medium substrate and metallic reflection base plate, and described metal radiant panel and metallic reflection base plate are arranged at upper surface and the lower surface of medium substrate respectively; The shape of described metal radiant panel is triangle, triangle radiant panel has Y shape groove, and described Y shape groove comprises three bar shaped flutings, and the initiating terminal of described three bar shapeds fluting intersects to be assembled, and end points to three sides of a triangle respectively; The described triangle radiant panel with Y shape groove, for control surface current flowing, gives off circularly polarised wave; The bar shaped fluting edge of described Y shape groove arranges coaxial feed point, for feed-in electromagnetic wave signal.
2. satellite navigation circular polarization microstrip antenna according to claim 1, it is characterized in that, the shape of described microstrip antenna metal radiant panel comprises isosceles triangle, equilateral triangle or all unequal sealene triangle of the three limit length of sides, and three bar shaped flutings of described Y shape groove intersect the intersection point that the initiating terminal assembled should be Atria bar inner interweaver.
3. satellite navigation circular polarization microstrip antenna according to claim 2, it is characterized in that, the shape of described metal radiant panel is equilateral triangle, the radius of circle scope of described equilateral triangle circumscribed circle is between 0.3 λ ~ 0.5 λ, and 1 λ is an Antenna Operation center frequency point wavelength in free space.
4. satellite navigation circular polarization microstrip antenna according to claim 3, it is characterized in that, the length of three flutings of described Y shape groove is different, and be arranged in order with long, medium and short in the direction of the clock or by counter clockwise direction, length range is generally between 0.1 λ ~ 0.7 λ.
5. satellite navigation circular polarization microstrip antenna according to claim 4, is characterized in that, the width range of three flutings of described Y shape groove is generally between 0.002 λ ~ 0.2 λ, and the bandwidth of operation of antenna is directly proportional to the width of fluting.
6. satellite navigation circular polarization microstrip antenna according to claim 5, it is characterized in that, the position of described distributing point is on the left side edge of the longest fluting or right edge edge, and can adjust along the edge of fluting, the range distance triangle inner center of adjustment is generally between 0.1 λ ~ 0.5 λ; By adjusting the position adjustment antenna impedance of distributing point, antenna impedance is adjusted to 50 ohm, to realize the impedance matching of antenna and rear class radio-frequency devices.
7. according to the satellite navigation circular polarization microstrip antenna one of claim 1 to 6 Suo Shu, it is characterized in that, the end of three bar shaped flutings of described Y shape groove is arc groove structure, for auxiliary extended antenna bandwidth of operation.
8. according to the satellite navigation circular polarization microstrip antenna one of claim 1 to 6 Suo Shu, it is characterized in that, described medium substrate selects high dielectric constant material, to reduce the size of described microstrip antenna radiant panel.
9. according to the satellite navigation circular polarization microstrip antenna one of claim 1 to 6 Suo Shu, it is characterized in that, described dielectric substrate thickness scope is selected between 0.01 λ ~ 0.1 λ, to improve radiation efficiency and the bandwidth of operation of antenna.
10. according to the satellite navigation circular polarization microstrip antenna one of claim 1 to 6 Suo Shu, it is characterized in that, air between described microstrip antenna metal radiant panel and metallic reflection base plate, also can be used to serve as dielectric-slab.
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| CN201510490302.6A CN105048074A (en) | 2015-08-11 | 2015-08-11 | Satellite navigation circularly polarized microstrip antenna |
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| CN201510490302.6A CN105048074A (en) | 2015-08-11 | 2015-08-11 | Satellite navigation circularly polarized microstrip antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958194A (en) * | 2016-06-01 | 2016-09-21 | 深圳市中联云达科技有限公司 | Circular polarized antenna |
| CN106384884A (en) * | 2016-10-27 | 2017-02-08 | 北京东方联星科技有限公司 | Hollow polygonal double-frequency single-layer micro-strip antenna |
| CN106450732A (en) * | 2016-10-27 | 2017-02-22 | 北京东方联星科技有限公司 | Hollow circular double-band single-layer microstrip antenna |
| CN106803614A (en) * | 2016-11-24 | 2017-06-06 | 北京航空航天大学 | The determination method and device of the feed port of high temperature resistant multi-mode antenna for satellite navigation |
| CN108832290A (en) * | 2018-06-22 | 2018-11-16 | 电子科技大学 | Three arm circular polarized antennas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028324A1 (en) * | 2000-04-07 | 2001-10-11 | Industrial Technology Research | Microstrip antenna |
| CN103022685A (en) * | 2013-01-18 | 2013-04-03 | 厦门大学 | Beidou system coupling load parasitic unit orthogonal synthesis dual-frequency microstrip antenna |
| CN102509869B (en) * | 2011-10-11 | 2014-03-19 | 北京邮电大学 | Micro-strip gradually-changing-slot antenna |
| CN204011732U (en) * | 2014-08-08 | 2014-12-10 | 常熟理工学院 | A kind of triangle patch multifrequency antenna that simultaneously adds short circuit pin and T-shaped fluting |
-
2015
- 2015-08-11 CN CN201510490302.6A patent/CN105048074A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028324A1 (en) * | 2000-04-07 | 2001-10-11 | Industrial Technology Research | Microstrip antenna |
| CN102509869B (en) * | 2011-10-11 | 2014-03-19 | 北京邮电大学 | Micro-strip gradually-changing-slot antenna |
| CN103022685A (en) * | 2013-01-18 | 2013-04-03 | 厦门大学 | Beidou system coupling load parasitic unit orthogonal synthesis dual-frequency microstrip antenna |
| CN204011732U (en) * | 2014-08-08 | 2014-12-10 | 常熟理工学院 | A kind of triangle patch multifrequency antenna that simultaneously adds short circuit pin and T-shaped fluting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958194A (en) * | 2016-06-01 | 2016-09-21 | 深圳市中联云达科技有限公司 | Circular polarized antenna |
| CN106384884A (en) * | 2016-10-27 | 2017-02-08 | 北京东方联星科技有限公司 | Hollow polygonal double-frequency single-layer micro-strip antenna |
| CN106450732A (en) * | 2016-10-27 | 2017-02-22 | 北京东方联星科技有限公司 | Hollow circular double-band single-layer microstrip antenna |
| CN106803614A (en) * | 2016-11-24 | 2017-06-06 | 北京航空航天大学 | The determination method and device of the feed port of high temperature resistant multi-mode antenna for satellite navigation |
| CN106803614B (en) * | 2016-11-24 | 2020-05-12 | 北京航空航天大学 | Method and device for determining feed port of high-temperature-resistant multi-mode satellite navigation antenna |
| CN108832290A (en) * | 2018-06-22 | 2018-11-16 | 电子科技大学 | Three arm circular polarized antennas |
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