CN115332778B - Broadband circularly polarized electric small grid antenna - Google Patents
Broadband circularly polarized electric small grid antenna Download PDFInfo
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- CN115332778B CN115332778B CN202211116323.8A CN202211116323A CN115332778B CN 115332778 B CN115332778 B CN 115332778B CN 202211116323 A CN202211116323 A CN 202211116323A CN 115332778 B CN115332778 B CN 115332778B
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- 239000000758 substrate Substances 0.000 claims abstract description 82
- 230000003071 parasitic effect Effects 0.000 claims abstract description 43
- 230000005284 excitation Effects 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims description 126
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 abstract description 12
- 230000010287 polarization Effects 0.000 abstract description 9
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000004088 simulation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 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
- 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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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Abstract
The application provides a broadband circularly polarized electric small grid antenna, which comprises a first dielectric substrate and a second dielectric substrate which are sequentially arranged from top to bottom; the upper surface of the first dielectric substrate is provided with a parasitic grid structure, the lower surface of the first dielectric substrate is provided with a parasitic cross dipole, and the lower surface of the second dielectric substrate is provided with an excitation unit; the excitation unit comprises two excitation components which are arranged along the center of the second dielectric substrate in a 180-degree rotation mode, and the two groups of excitation components are respectively used for exciting the parasitic grid structure and the parasitic cross dipole. According to the application, a pair of orthogonal modes of a parasitic grid structure and a parasitic cross dipole are respectively excited by two excitation components, and the two circular polarization modes are overlapped to finally obtain broadband circular polarization radiation characteristics under the condition of small electric size; the application has the characteristics of broadband circular polarization and bidirectional stable radiation, and simultaneously has the characteristics of miniaturization, compactness, simple structure, low cost and the like.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a broadband circularly polarized electric small grid antenna.
Background
With the high-speed development of communication systems, the available space on a mobile platform is more and more limited, and the main development trend of antennas is towards integration and miniaturization, so that the high-performance and miniaturized antennas are required to be large in quantity; therefore, electrically small antennas have become a hot spot of research in recent years. Meanwhile, the circularly polarized antenna has remarkable advantages over the linearly polarized antenna, including reduction of polarization mismatch, suppression of multipath interference, improvement of system sensitivity between transceivers, and the like.
Currently, existing electrically small circularly polarized antennas generally have a relatively narrow bandwidth, most of which do not exceed 2%, and cannot be widely applied.
Disclosure of Invention
The invention aims to provide a broadband circularly polarized electric small grid antenna.
The invention aims at realizing the technical scheme, which comprises a first dielectric substrate and a second dielectric substrate which are sequentially arranged from top to bottom;
The upper surface of the first dielectric substrate is provided with a parasitic grid structure, the lower surface of the first dielectric substrate is provided with a parasitic cross dipole, and the lower surface of the second dielectric substrate is provided with an excitation unit;
the excitation unit comprises two excitation components which are arranged along the center of the second dielectric substrate in a 180-degree rotation mode, and the two groups of excitation components are respectively used for exciting the parasitic grid structure and the parasitic cross dipole.
Further, the parasitic cross dipole includes first and second parasitic dipole elements disposed in quadrature;
the first parasitic dipole component comprises two first T-shaped dipoles which are arranged along the center of the first dielectric substrate in a 180-degree rotation mode, and the second parasitic dipole component comprises two second T-shaped dipoles which are arranged along the center of the first dielectric substrate in a 180-degree rotation mode;
The first T-shaped dipole comprises a first metal strip and a first arc-shaped metal strip connected with one end of the first metal strip far away from the center of the first dielectric substrate;
The second T-shaped dipole comprises a second metal strip and a second arc-shaped metal strip connected with one end, far away from the center of the first dielectric substrate, of the first metal strip.
Further, the two excitation components comprise a third metal strip, a third arc-shaped metal strip connected with one end, far away from the center of the second dielectric substrate, of the third metal strip, and a fourth metal strip connected with one end, close to the center of the second dielectric substrate, of the third metal strip, the fourth metal strip and the third metal strip are arranged in a mutually orthogonal mode, and the central axis of the length direction of the fourth metal strip passes through the center of the second dielectric substrate.
Further, the parasitic grid structure comprises a first rectangular frame and a second rectangular frame which are coincident in center and mutually orthogonal;
ten horizontal metal strips are arranged in the first rectangular frame at equal intervals in parallel along the horizontal direction, six vertical metal strips are arranged in the second rectangular frame at equal intervals in parallel along the vertical direction, and the ten horizontal metal strips and the six vertical metal strips are mutually orthogonal;
the inner sides of the horizontal edges at the two sides of the first rectangular frame are overlapped and connected with the outer sides of the horizontal edges at the two sides of the second rectangular frame respectively.
Further, the distance W 5 between the two first metal strips and the end, close to the center of the first dielectric substrate, of the two second metal strips is 5mm;
The widths W 4 of the first metal strip and the second metal strip are 3.62mm;
The outer radius R 1 of the first arc-shaped metal strip and the second arc-shaped metal strip is 35mm, the inner radius R 2 of the first arc-shaped metal strip is 30.14mm, the inner radius R 3 of the second arc-shaped metal strip is 31.54mm, and the arc angles alpha 1 of the first arc-shaped metal strip and the second arc-shaped metal strip are 75 degrees.
Further, the inner radius R 4 of the third arcuate metal strip is 31mm; the outer radius R 5 of the third arc-shaped metal strip is 33.03mm; the arc angle alpha 2 of the third arc-shaped metal strip is 32 degrees;
The length L 8 of the fourth metal strip is 10mm; the width W 6 of the third metal strip and the fourth metal strip is 1.58mm.
Further, the length L 1 of the first rectangular frame in the vertical direction is 42.86mm, the width L 2 of the first rectangular frame in the horizontal direction is 36mm, the length L 3 of the second rectangular frame in the vertical direction is 45.2mm, and the width L 4 of the second rectangular frame in the horizontal direction is 30.28mm;
The width W 1 of the horizontal metal strips is 1.28mm, the spacing L 6 between the adjacent horizontal metal strips and between the horizontal metal strips and the horizontal side of the first rectangular frame is 2.5mm, the width W 2 of the vertical metal strips is 1.16mm, and the spacing L 5 between the adjacent vertical metal strips and between the vertical metal strips and the vertical side of the second rectangular frame is 3mm;
the distance L 7 between the vertical edge of the first rectangular frame and the vertical edge of the second rectangular frame is 1.86mm.
Further, the first dielectric substrate and the second dielectric substrate are of circular structures, and central axes of the first dielectric substrate and the second dielectric substrate are overlapped.
Further, both excitation components are connected to a feeder line, which is a coaxial cable.
Further, the radius of each of the first medium substrate and the second medium substrate is 35mm;
The thickness of the first dielectric substrate is 0.101mm, and the first dielectric substrate adopts a manufacturing material with the model of Rogers RT/duroid4350B, has a relative dielectric constant of 3.48 and a loss tangent of 0.0037;
The thickness of the second dielectric substrate is 0.508mm, and the second dielectric substrate adopts a manufacturing material with the model of Rogers RT/duroid4003C, has a relative dielectric constant of 3.38 and a loss tangent of 0.0027.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. According to the application, a pair of orthogonal modes of a parasitic grid structure and a parasitic cross dipole are respectively excited by the two excitation components, and the broadband circular polarization radiation characteristic under the condition of small electric size is finally obtained by superposing the two circular polarization modes.
2. The antenna has the characteristics of miniaturization, compactness, simple structure, low cost and the like, and has wide application value.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
The drawings of the present invention are described below.
Fig. 1 is a schematic diagram of the structure of a wideband circularly polarized electrically small grid antenna of the present invention.
FIG. 2 is a schematic diagram of the exciting unit of the present invention.
Fig. 3 is a schematic diagram of a parasitic cross dipole structure according to the present invention. .
Fig. 4 is a schematic diagram of a parasitic grid structure of the present invention.
Fig. 5 is a graph showing the reflection coefficient (|s 11 |) of the broadband circularly polarized electrically small grid antenna according to the embodiment of the present invention according to the frequency.
Fig. 6 is a schematic diagram of an axial ratio curve of a wideband circularly polarized electrically small grid antenna according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a gain curve of a wideband circularly polarized electrically small grid antenna according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a radiation efficiency curve of a wideband circularly polarized electrically small grid antenna according to an embodiment of the present invention.
Fig. 9 is a radiation pattern of a wideband circularly polarized electrically small grid antenna at a frequency of 1.4GHz in an embodiment of the present invention.
Fig. 10 is a radiation pattern of a wideband circularly polarized electrically small grid antenna at a frequency of 1.6GHz in an embodiment of the invention.
In the figure: 1-a first dielectric substrate; 2-a second dielectric substrate; 3-parasitic grid structure; 4-parasitic cross dipoles; a 5-excitation unit; 6-a first T-shaped dipole; 7-a second T-shaped dipole; 9-a first rectangular frame; 10-a second rectangular frame; 11-a coaxial cable; 61-a first metal strip; 62-a first arcuate metal strip; 71-a second metal strip; 72-a second arcuate metal strip; 81-a third metal strip; 82-a third arcuate metal strip; 83-fourth metal strip; 91-horizontal metal strips; 101-vertical metal strips.
Detailed Description
The invention is further described below with reference to the drawings and examples.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
The broadband circularly polarized electrically small grid antenna as shown in fig. 1-4 comprises a first dielectric substrate 1 and a second dielectric substrate 2 which are sequentially arranged from top to bottom;
The upper surface of the first dielectric substrate 1 is provided with a parasitic grid structure 3, the lower surface of the first dielectric substrate 1 is provided with a parasitic cross dipole 4, and the lower surface of the second dielectric substrate 2 is provided with an excitation unit 5;
the excitation unit 5 comprises two excitation components which are arranged along the center of the second dielectric substrate 2 in a 180-degree rotation way, and the two groups of excitation components are respectively used for exciting the parasitic grid structure 3 and the parasitic cross dipole 4.
In the embodiment of the invention, the parasitic grid structure 3 is printed on the upper surface of the first dielectric substrate 1, the parasitic cross dipole 4 is printed on the lower surface of the first dielectric substrate 1, the exciting unit 5 is printed on the lower surface of the second dielectric substrate 2, a pair of orthogonal modes of the parasitic grid structure and the parasitic cross dipole are respectively excited by two exciting components, and the broadband circular polarization radiation characteristic under the small electric size is finally obtained by superposing the two circular polarization modes.
As an embodiment of the present invention, the parasitic cross dipole 4 includes a first parasitic dipole element and a second parasitic dipole element that are orthogonally disposed;
the first parasitic dipole component comprises two first T-shaped dipoles 6 which are arranged along the center of the first dielectric substrate 1 in a 180-degree rotation mode, and the second parasitic dipole component comprises two second T-shaped dipoles 7 which are arranged along the center of the first dielectric substrate 1 in a 180-degree rotation mode;
The first T-shaped dipole 6 comprises a first metal strip 61 and a first arc-shaped metal strip 62 connected with one end of the first metal strip 61 far away from the center of the first dielectric substrate 1;
the second T-shaped dipole 7 includes a second metal strip 71, and a second arc-shaped metal strip 72 connected to an end of the first metal strip 71 remote from the center of the first dielectric substrate 1.
As an embodiment of the present invention, the exciting unit 5 includes two exciting assemblies which are arranged to rotate 180 ° along the center of the second dielectric substrate 2;
The two excitation components comprise a third metal strip 81, a third arc-shaped metal strip 82 connected with one end, far away from the center of the second dielectric substrate 2, of the third metal strip 81, and a fourth metal strip 83 connected with one end, close to the center of the second dielectric substrate 2, of the third metal strip 81, the fourth metal strip 83 and the third metal strip 81 are arranged in a mutually orthogonal mode, and the central axis of the length direction of the fourth metal strip 83 passes through the center of the second dielectric substrate 2.
As an embodiment of the present invention, the parasitic grid structure 3 includes a first rectangular frame 9 and a second rectangular frame 10 that are coincident in center and orthogonal to each other;
Ten horizontal metal strips 91 are arranged in the first rectangular frame 9 at equal intervals in parallel along the horizontal direction, six vertical metal strips 101 are arranged in the second rectangular frame 10 at equal intervals in parallel along the vertical direction, and the ten horizontal metal strips 91 are mutually orthogonal to the six vertical metal strips 101;
the inner sides of the horizontal edges on the two sides of the first rectangular frame 9 are overlapped and connected with the outer sides of the horizontal edges on the two sides of the second rectangular frame 10 respectively.
As an embodiment of the present invention, the first dielectric substrate 1 and the second dielectric substrate 2 are both in a circular structure, and central axes of the first dielectric substrate 1 and the second dielectric substrate 2 are coincident.
As an embodiment of the invention, both excitation assemblies are connected to a feeder line, which is a coaxial cable 11.
In the present embodiment, the coaxial cable 11 is a 50 ohm coaxial cable that feeds the excitation unit.
As an embodiment of the present invention, the radii of the first dielectric substrate 1 and the second dielectric substrate 2 are 35mm;
The thickness of the first dielectric substrate 1 is 0.101mm, and the first dielectric substrate adopts a manufacturing material with the model of Rogers RT/duroid4350B, the relative dielectric constant is 3.48, and the loss tangent is 0.0037;
the thickness of the second dielectric substrate 2 is 0.508mm, and the relative dielectric constant is 3.38 and the loss tangent is 0.0027 by using a manufacturing material with the model of Rogers RT/duroid 4003C.
The spacing W 5 between the two first metal strips 61 and the two second metal strips 71 near the center of the first dielectric substrate 1 is 5mm;
The widths W 4 of the first metal strip 61 and the second metal strip 71 are 3.62mm;
The outer radius R 1 of the first and second arc-shaped metal strips 62, 72 is 35mm, the inner radius R 2 of the first arc-shaped metal strip 62 is 30.14mm, the inner radius R 3 of the second arc-shaped metal strip 72 is 31.54mm, and the arc angles alpha 1 of the first and second arc-shaped metal strips 62, 72 are 75 degrees.
The inner radius R 4 of the third arcuate metal strip 82 is 31mm; the outer radius R 5 of the third arcuate metal strip 82 is 33.03mm; the arc angle α 2 of the third arc-shaped metal strip 82 is 32 °;
The length L 8 of the fourth metal strip 83 is 10mm; the width W 6 of the third and fourth metal strips 81, 83 is 1.58mm.
The length L 1 of the first rectangular frame 9 in the vertical direction is 42.86mm, the width L 2 of the first rectangular frame 9 in the horizontal direction is 36mm, the length L 3 of the second rectangular frame 10 in the vertical direction is 45.2mm, and the width L 4 of the second rectangular frame 10 in the horizontal direction is 30.28mm;
The width W 1 of the horizontal metal strips 91 is 1.28mm, the spacing L 6 between adjacent horizontal metal strips 91 and between the horizontal metal strips 91 and the horizontal side of the first rectangular frame 9 is 2.5mm, the width W 2 of the vertical metal strips 101 is 1.16mm, and the spacing L 5 between adjacent vertical metal strips 101 and between the vertical metal strips 101 and the vertical side of the second rectangular frame 10 is 3mm;
The distance L 7 between the vertical side of the first rectangular frame 9 and the vertical side of the second rectangular frame 10 is 1.86mm.
The dimensions of the parameters obtained after simulation optimization are shown in table 1:
TABLE1 optimal size table for each parameter of the present invention
According to the parameters, the reflection coefficient characteristic parameters of the designed dual-frequency antenna array are subjected to simulation analysis and test by using HFSS, and the analysis results are as follows:
The plot of the antenna 'S S 11 is shown in FIG. 5, where the impedance bandwidth of the antenna is in the range of 1.28-1.74GHz when the antenna' S S 11 is < 10 dB.
The Axial Ratio (AR) curve of the antenna is shown in FIG. 6, and the simulation result shows that the circular polarization bandwidth ranges from 1.34 GHz to 1.65GHz.
The gain curve of the antenna is shown in fig. 7, and the result shows that the gain value of the antenna in the operating frequency band is basically kept at 2.1dBic, and the gain fluctuation range in the frequency band is within 0.3 dB.
The radiation efficiency curves of the antenna are shown in fig. 8, and the results show that the radiation efficiency of the antenna in the working frequency band is more than 87%.
The radiation patterns of the antenna at 1.4GHz are shown in fig. 9, where the patterns of the x0z plane and the y0z plane are shown in fig. 9 (a) and (b), respectively.
The radiation pattern of the antenna at 1.6GHz is shown in fig. 10, and the antenna exhibits a bidirectional radiation characteristic in an operating band, in which patterns of x0z plane and y0z plane are shown in fig. 10 (a) and (b), respectively.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (8)
1. The broadband circularly polarized electric small grid antenna is characterized by comprising a first dielectric substrate (1) and a second dielectric substrate (2) which are sequentially arranged from top to bottom;
the upper surface of the first dielectric substrate (1) is provided with a parasitic grid structure (3), the lower surface of the first dielectric substrate (1) is provided with a parasitic cross dipole (4), and the lower surface of the second dielectric substrate (2) is provided with an excitation unit (5);
The excitation unit (5) comprises two excitation components which are arranged along the center of the second dielectric substrate (2) in a rotating way by 180 degrees, and the two groups of excitation components are respectively used for exciting the parasitic grid structure (3) and the parasitic cross dipole (4);
the parasitic cross dipole (4) comprises a first parasitic dipole component and a second parasitic dipole component which are orthogonally arranged;
The first parasitic dipole component comprises two first T-shaped dipoles (6) which are arranged along the center of the first dielectric substrate (1) in a 180-degree rotation mode, and the second parasitic dipole component comprises two second T-shaped dipoles (7) which are arranged along the center of the first dielectric substrate (1) in a 180-degree rotation mode;
The first T-shaped dipole (6) comprises a first metal strip (61) and a first arc-shaped metal strip (62) connected with one end of the first metal strip (61) far away from the center of the first dielectric substrate (1);
the second T-shaped dipole (7) comprises a second metal strip (71) and a second arc-shaped metal strip (72) connected with one end of the second metal strip (71) far away from the center of the first dielectric substrate (1);
The parasitic grid structure (3) comprises a first rectangular frame (9) and a second rectangular frame (10) which are coincident in center and mutually orthogonal;
Ten horizontal metal strips (91) are arranged in the first rectangular frame (9) at equal intervals in parallel along the horizontal direction, six vertical metal strips (101) are arranged in the second rectangular frame (10) at equal intervals in parallel along the vertical direction, and the ten horizontal metal strips (91) are mutually orthogonal to the six vertical metal strips (101);
The inner sides of the horizontal edges at the two sides of the first rectangular frame (9) are overlapped and connected with the outer sides of the horizontal edges at the two sides of the second rectangular frame (10) respectively.
2. A broadband circularly polarized electrically small grid antenna according to claim 1, characterized in that both excitation components comprise a third metal strip (81), a third arc-shaped metal strip (82) connected to the end of the third metal strip (81) remote from the center of the second dielectric substrate (2), and a fourth metal strip (83) connected to the end of the third metal strip (81) near the center of the second dielectric substrate (2), the fourth metal strip (83) and the third metal strip (81) being arranged orthogonally to each other, and the central axis of the fourth metal strip (83) in the length direction passing through the center of the second dielectric substrate (2).
3. A broadband circularly polarized electrically small grid antenna according to claim 1, characterized in that the spacing W 5 between the two first metal strips (61) and the two second metal strips (71) near the central end of the first dielectric substrate (1) is 5mm;
the widths W 4 of the first metal strip (61) and the second metal strip (71) are 3.62mm;
the outer radius R 1 of the first arc-shaped metal strip (62) and the second arc-shaped metal strip (72) is 35mm, the inner radius R 2 of the first arc-shaped metal strip (62) is 30.14mm, the inner radius R 3 of the second arc-shaped metal strip (72) is 31.54mm, and the arc angles alpha 1 of the first arc-shaped metal strip (62) and the second arc-shaped metal strip (72) are 75 degrees.
4. A wideband circularly polarized electrically small grid antenna as claimed in claim 2, characterized in that the inner radius R 4 of the third arcuate metal strip (82) is 31mm; the outer radius R 5 of the third arc-shaped metal strip (82) is 33.03mm; the arc angle alpha 2 of the third arc-shaped metal strip (82) is 32 degrees;
The length L 8 of the fourth metal strip (83) is10 mm; the width W 6 of the third metal strip (81) and the fourth metal strip (83) is 1.58mm.
5. A wideband circularly polarized electrically small grid antenna as claimed in claim 1, wherein the length L 1 of the first rectangular frame (9) in the vertical direction is 42.86mm, the width L 2 of the first rectangular frame (9) in the horizontal direction is 36mm, the length L 3 of the second rectangular frame (10) in the vertical direction is 45.2mm, and the width L 4 of the second rectangular frame (10) in the horizontal direction is 30.28mm;
The width W 1 of the horizontal metal strips (91) is 1.28mm, the distance L 6 between the adjacent horizontal metal strips (91) and between the horizontal metal strips (91) and the horizontal side of the first rectangular frame (9) is 2.5mm, the width W 2 of the vertical metal strips (101) is 1.16mm, and the distance L 5 between the adjacent vertical metal strips (101) and between the vertical metal strips (101) and the vertical side of the second rectangular frame (10) is 3mm;
The distance L 7 between the vertical sides of the first rectangular frame (9) and the vertical sides of the second rectangular frame (10) is 1.86mm.
6. A broadband circularly polarized electrically small grid antenna according to claim 1, characterized in that the first dielectric substrate (1) and the second dielectric substrate (2) are both of circular structure, and the central axes of the first dielectric substrate (1) and the second dielectric substrate (2) coincide.
7. A broadband circularly polarized electrically small grid antenna according to claim 1, characterized in that both excitation components are connected to a feed line, which is a coaxial cable (11).
8. A broadband circularly polarized electrically small grid antenna according to claim 6, characterized in that the radius of both the first dielectric substrate (1) and the second dielectric substrate (2) is 35mm;
The thickness of the first dielectric substrate (1) is 0.101mm, and the manufacturing material with the model of Rogers RT/duroid4350B is adopted, the relative dielectric constant is 3.48, and the loss tangent is 0.0037;
the thickness of the second dielectric substrate (2) is 0.508mm, and the second dielectric substrate adopts a manufacturing material with the model of Rogers RT/duroid4003C, the relative dielectric constant is 3.38, and the loss tangent is 0.0027.
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| CN202211116323.8A CN115332778B (en) | 2022-09-14 | 2022-09-14 | Broadband circularly polarized electric small grid antenna |
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| CN202211116323.8A CN115332778B (en) | 2022-09-14 | 2022-09-14 | Broadband circularly polarized electric small grid antenna |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188329A (en) * | 2007-12-04 | 2008-05-28 | 同济大学 | A dual-frequency ultra-thin highly directional resonance cavity antenna |
| CN103518290A (en) * | 2011-05-11 | 2014-01-15 | 哈里公司 | Electronic device including patch antenna and photovoltaic layer and related methods |
| KR101410487B1 (en) * | 2013-02-05 | 2014-07-01 | 주식회사 에스원 | Circular antenna having wide axial-ratio |
| CN104103900A (en) * | 2014-07-10 | 2014-10-15 | 电子科技大学 | Low-profile broadband dual polarization omni-directional antenna |
| CN107546473A (en) * | 2017-08-04 | 2018-01-05 | 深圳市景程信息科技有限公司 | The antenna of directional diagram reconstructable based on graphene |
| CN111082200A (en) * | 2019-12-31 | 2020-04-28 | 重庆品胜科技有限公司 | Polarization-reconfigurable-based electric small yagi RFID antenna |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6922179B2 (en) * | 2003-11-17 | 2005-07-26 | Winegard Company | Low profile television antenna |
| WO2011141821A2 (en) * | 2010-05-13 | 2011-11-17 | Uti Limited Partnership | Dual circularly polarized antenna |
| WO2013106106A2 (en) * | 2012-01-09 | 2013-07-18 | Utah State University | Reconfigurable antennas utilizing parasitic pixel layers |
-
2022
- 2022-09-14 CN CN202211116323.8A patent/CN115332778B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188329A (en) * | 2007-12-04 | 2008-05-28 | 同济大学 | A dual-frequency ultra-thin highly directional resonance cavity antenna |
| CN103518290A (en) * | 2011-05-11 | 2014-01-15 | 哈里公司 | Electronic device including patch antenna and photovoltaic layer and related methods |
| KR101410487B1 (en) * | 2013-02-05 | 2014-07-01 | 주식회사 에스원 | Circular antenna having wide axial-ratio |
| CN104103900A (en) * | 2014-07-10 | 2014-10-15 | 电子科技大学 | Low-profile broadband dual polarization omni-directional antenna |
| CN107546473A (en) * | 2017-08-04 | 2018-01-05 | 深圳市景程信息科技有限公司 | The antenna of directional diagram reconstructable based on graphene |
| CN111082200A (en) * | 2019-12-31 | 2020-04-28 | 重庆品胜科技有限公司 | Polarization-reconfigurable-based electric small yagi RFID antenna |
Non-Patent Citations (2)
| Title |
|---|
| "Low-Profile, Electrically Small, Ultrawideband Antenna Enabled With an Inductive Grid Array Metasurface";Qingli Lin et al.;《IEEE Transactions on Antennas and Propagation》;20220128;全文 * |
| "一种具有超宽带稳定辐射特性电小栅格型偶极子天线";林青丽 等;《2022年全国微波毫米波会议论文集（上册）》;20220831;第112页右栏第2段-第114页右栏第1段，图1-2 * |
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| CN115332778A (en) | 2022-11-11 |
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