CN219833035U - Circularly polarized magnetic dipole yagi antenna - Google Patents
Circularly polarized magnetic dipole yagi antenna Download PDFInfo
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- CN219833035U CN219833035U CN202321405456.7U CN202321405456U CN219833035U CN 219833035 U CN219833035 U CN 219833035U CN 202321405456 U CN202321405456 U CN 202321405456U CN 219833035 U CN219833035 U CN 219833035U
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- circularly polarized
- metal
- magnetic dipole
- yagi antenna
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- 239000002184 metal Substances 0.000 claims abstract description 70
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a circularly polarized magnetic dipole yagi antenna, which comprises a dielectric plate, a first metal plate, a second metal plate and SIW (substrate integrated waveguide) columns, wherein the dielectric plate comprises a dielectric lower part and a dielectric upper part which are connected, the first metal plate is arranged on the front surface of the dielectric lower part, the second metal plate is arranged on the back surface of the dielectric lower part, the SIW columns are arranged in the dielectric lower part and are connected and conducted with the first metal plate and the second metal plate, a plurality of SIW columns are arranged on both sides and the top of the dielectric lower part, and a feed port is formed at the joint of the dielectric lower part and the dielectric upper part; the upper part of the medium is provided with a plurality of groups of isolation structures which are arranged in a row, the upper part of the medium is divided into a plurality of functional areas by the plurality of groups of isolation structures, each functional area is internally provided with a metal ring, the functional areas close to the lower part of the medium are drivers, the other functional areas are directors, and SIW columns positioned at the top of the lower part of the medium form a reflector. The circularly polarized magnetic dipole yagi antenna has novel structure and is convenient to process and manufacture; can cover 27-29Ghz frequency band, and can realize high gain.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a circularly polarized magnetic dipole yagi antenna.
Background
The Chinese patent application with the application number of 202110634258.7 discloses a circularly polarized antenna, which covers the frequency band of 9.44GHz-10.88GHz and has the gain of 5.4dBi-6.21dBi, so that the circularly polarized antenna is not suitable for high-frequency and high-gain application scenes.
Disclosure of Invention
The technical problems solved by the utility model are as follows: a high gain circularly polarized magnetic dipole yagi antenna capable of covering 27-29Ghz band is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: the circularly polarized magnetic dipole yagi antenna comprises a dielectric plate, a first metal plate, a second metal plate and SIW columns, wherein the dielectric plate comprises a dielectric lower part and a dielectric upper part which are connected, the first metal plate is arranged on the front surface of the dielectric lower part, the second metal plate is arranged on the back surface of the dielectric lower part, the SIW columns are arranged in the dielectric lower part and connected with the first metal plate and the second metal plate, a plurality of SIW columns are arranged on the two sides and the top of the dielectric lower part, and the SIW columns are not arranged in a local area at the joint of the dielectric lower part and the dielectric upper part so as to form a feed port; the medium upper portion has the multiunit isolation structure that is one row and sets up, multiunit isolation structure with medium upper portion is separated into a plurality of functional areas, every all be equipped with the metal ring in the functional area, the metal ring corresponds to the feed inlet sets up, next-door neighbour the functional area of medium lower part is the driver, and other functional area is the director, is located the top of medium lower part SIW post constitutes the reflector.
Further, the dielectric plate is a PCB substrate or a ceramic plate.
Further, the dielectric plate has a dielectric constant of 10 or greater.
Further, the metal ring comprises a first metal patch, a second metal patch and two conducting columns, the first metal patch is arranged on the front surface of the upper portion of the medium, the second metal patch is arranged on the back surface of the upper portion of the medium, the conducting columns are arranged in the upper portion of the medium, two ends of each conducting column are respectively connected and conducted with the first metal patch and the second metal patch, and the two conducting columns are mutually far away from each other.
Further, the conducting column is of a hollow structure.
Further, the isolation structure includes a plurality of through holes arranged in a concave shape.
Further, the metal ring is located in the recessed region of the isolation structure.
Further, the isolation structure further comprises a plurality of metal columns, and a plurality of metal columns are arranged on two sides of each functional area.
Further, one side of each functional area is provided with three metal posts.
Further, the number of directors is one or more.
The utility model has the beneficial effects that:
the circularly polarized magnetic dipole yagi antenna has novel structure, convenient processing and manufacturing, small volume and small occupied space, and is particularly suitable for application scenes with limited installation space;
the circularly polarized magnetic dipole yagi antenna can cover 27-29Ghz frequency bands, and can realize high gain.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a circularly polarized magnetic dipole yagi antenna according to an embodiment of the present utility model;
FIG. 2 is a perspective view of a circularly polarized magnetic dipole yagi antenna according to a first embodiment of the present utility model;
FIG. 3 is a schematic diagram of a metal ring in a circularly polarized magnetic dipole yagi antenna according to an embodiment of the present utility model;
FIG. 4 is a graph S11 of a circularly polarized magnetic dipole yagi antenna according to an embodiment of the present utility model;
FIG. 5 is a graph of axial ratio of a circularly polarized magnetic dipole yagi antenna according to an embodiment of the present utility model;
fig. 6 is a gain plot of a circularly polarized magnetic dipole yagi antenna according to a first embodiment of the present utility model.
Reference numerals illustrate:
1. a dielectric plate; 11. a lower part of the medium; 12. an upper part of the medium; 13. a feed port;
2. a first metal plate;
3. a second metal plate;
4. a SIW column;
51. a through hole; 52. a metal column;
6. a metal ring; 61. a first metal patch; 62. a second metal patch; 63. a conductive column;
7. a driver;
8. a director;
9. a reflector.
Detailed Description
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to, and the directional indication is merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1 to 6, a first embodiment of the present utility model is as follows: referring to fig. 1 to 3, the circularly polarized magnetic dipole yagi antenna includes a dielectric plate 1, a first metal plate 2, a second metal plate 3 and SIW pillars 4, where the dielectric plate 1 includes a dielectric lower portion 11 and a dielectric upper portion 12 connected to each other, the first metal plate 2 is disposed on the front surface of the dielectric lower portion 11, the second metal plate 3 is disposed on the back surface of the dielectric lower portion 11, the SIW pillars 4 are disposed in the dielectric lower portion 11 and connected to the first metal plate 2 and the second metal plate 3, a plurality of SIW pillars 4 are disposed on both sides and top of the dielectric lower portion 11, and no SIW pillars 4 are disposed in a local area where the dielectric lower portion 11 is connected to the dielectric upper portion 12 to form a feed port 13; the medium upper portion 12 is provided with a plurality of groups of isolation structures which are arranged in a row, the medium upper portion 12 is divided into a plurality of functional areas by the plurality of groups of isolation structures, each functional area is internally provided with a metal ring 6, the metal rings 6 are arranged corresponding to the feed ports 13, the functional areas close to the medium lower portion 11 are drivers 7, the rest functional areas are directors 8, and the SIW columns 4 positioned at the top of the medium lower portion 11 form reflectors 9.
The number of directors 8 is one or more, and in this embodiment, the number of directors 8 is two.
The dielectric plate 1 is a PCB substrate or a ceramic plate, and the dielectric constant of the dielectric plate 1 is greater than or equal to 10. When the dielectric plate 1 is a PCB substrate (for example, rogers 3010 type board), the circularly polarized magnetic dipole yagi antenna can be directly formed by a double-sided copper-clad circuit board processing technology, thereby greatly facilitating the processing and manufacturing of the circularly polarized magnetic dipole yagi antenna.
Specifically, the metal ring 6 includes a first metal patch 61, a second metal patch 62, and two conducting posts 63, the first metal patch 61 is disposed on the front surface of the upper medium portion 12, the second metal patch 62 is disposed on the back surface of the upper medium portion 12, the conducting posts 63 are disposed in the upper medium portion 12, two ends of the conducting posts 63 are respectively connected and conducted with the first metal patch 61 and the second metal patch 62, the two conducting posts 63 are far away from each other, and in more detail, the metal ring 6 is shaped like a Chinese character 'kou'.
The via post 63 may be a solid structure or a hollow structure, and when the via post 63 is a hollow structure, the via post 63 may be a metallized hole formed on the dielectric plate 1.
The isolation structure includes a plurality of through holes 51 arranged in a concave shape, specifically, the metal ring 6 is located in a concave region of the isolation structure, and more specifically, an opening of the concave region of the isolation structure faces the feed port 13.
In order to improve the isolation effect of the isolation structure, optionally, the isolation structure further includes a plurality of metal pillars 52, and a plurality of metal pillars 52 are disposed on two sides of each functional area. In this embodiment, three metal posts 52 are disposed on one side of each functional area.
FIG. 4 shows an S11 plot of the circularly polarized magnetic dipole yagi antenna of the present embodiment;
FIG. 5 shows an axial ratio plot of a circularly polarized magnetic dipole yagi antenna of the present embodiment;
fig. 6 shows a gain curve of the circularly polarized magnetic dipole yagi antenna of the present embodiment.
As can be seen from fig. 4 to fig. 6, the circularly polarized magnetic dipole yagi antenna of the present embodiment can effectively cover the 27-29GHz band, and has a 3dB axial ratio of 27.5-28.5GHz, and a gain of up to 7.3dBi, which is a typical high-gain circularly polarized antenna.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. The circularly polarized magnetic dipole yagi antenna is characterized in that: the dielectric plate comprises a dielectric lower part and a dielectric upper part which are connected, wherein the first metal plate is arranged on the front surface of the dielectric lower part, the second metal plate is arranged on the back surface of the dielectric lower part, the SIW columns are arranged in the dielectric lower part and connected with the first metal plate and the second metal plate, a plurality of SIW columns are arranged on both sides and the top of the dielectric lower part, and the SIW columns are not arranged in a local area at the joint of the dielectric lower part and the dielectric upper part to form a feed port; the medium upper portion has the multiunit isolation structure that is one row and sets up, multiunit isolation structure with medium upper portion is separated into a plurality of functional areas, every all be equipped with the metal ring in the functional area, the metal ring corresponds to the feed inlet sets up, next-door neighbour the functional area of medium lower part is the driver, and other functional area is the director, is located the top of medium lower part SIW post constitutes the reflector.
2. The circularly polarized magnetic dipole yagi antenna of claim 1, wherein: the dielectric plate is a PCB substrate or a ceramic plate.
3. The circularly polarized magnetic dipole yagi antenna of claim 1, wherein: the dielectric plate has a dielectric constant greater than or equal to 10.
4. The circularly polarized magnetic dipole yagi antenna of claim 1, wherein: the metal ring comprises a first metal patch, a second metal patch and two conducting columns, wherein the first metal patch is arranged on the front surface of the upper part of the medium, the second metal patch is arranged on the back surface of the upper part of the medium, the conducting columns are arranged in the upper part of the medium, two ends of each conducting column are respectively connected and conducted with the first metal patch and the second metal patch, and the two conducting columns are mutually far away from each other.
5. The circularly polarized magnetic dipole yagi antenna as defined in claim 4, wherein: the conducting column is of a hollow structure.
6. The circularly polarized magnetic dipole yagi antenna of claim 1, wherein: the isolation structure comprises a plurality of through holes which are arranged in a concave shape.
7. The circularly polarized magnetic dipole yagi antenna as defined in claim 6, wherein: the metal ring is located in the recessed region of the isolation structure.
8. The circularly polarized magnetic dipole yagi antenna as defined in claim 6, wherein: the isolation structure further comprises a plurality of metal columns, and a plurality of metal columns are arranged on two sides of each functional area.
9. The circularly polarized magnetic dipole yagi antenna of claim 8, wherein: and one side of each functional area is provided with three metal posts.
10. The circularly polarized magnetic dipole yagi antenna of claim 1, wherein: the number of directors is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321405456.7U CN219833035U (en) | 2023-06-02 | 2023-06-02 | Circularly polarized magnetic dipole yagi antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321405456.7U CN219833035U (en) | 2023-06-02 | 2023-06-02 | Circularly polarized magnetic dipole yagi antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219833035U true CN219833035U (en) | 2023-10-13 |
Family
ID=88250349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321405456.7U Active CN219833035U (en) | 2023-06-02 | 2023-06-02 | Circularly polarized magnetic dipole yagi antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219833035U (en) |
-
2023
- 2023-06-02 CN CN202321405456.7U patent/CN219833035U/en active Active
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