CN115966909A - Circularly polarized horn antenna - Google Patents
Circularly polarized horn antenna Download PDFInfo
- Publication number
- CN115966909A CN115966909A CN202211562256.2A CN202211562256A CN115966909A CN 115966909 A CN115966909 A CN 115966909A CN 202211562256 A CN202211562256 A CN 202211562256A CN 115966909 A CN115966909 A CN 115966909A
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- China
- Prior art keywords
- circular polarizer
- output connector
- circularly polarized
- cylindrical surface
- circular
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- 230000010287 polarization Effects 0.000 claims abstract description 32
- 239000007769 metal material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Waveguide Aerials (AREA)
Abstract
The invention provides a circular polarization horn antenna, which comprises: the device comprises a shell, a circular polarizer, an impedance matcher and an output connector; the upper end of the output connector is connected with the lower end of an impedance matcher, and the upper end of the impedance matcher is connected with the circular polarizer; the circular polarizer and the impedance matcher are positioned in the accommodating space of the shell, and the output connector part is positioned in the accommodating space of the shell; the circular polarizer, the impedance matcher, the output connector and the shell share a central shaft. The circular polarizer is provided with a spiral polarization line, the spiral polarization line is provided with a rotating direction, and when the rotating direction is a first direction, the circular polarizer realizes left-handed circular polarization; when the rotation direction is the second direction, the circular polarizer realizes right-hand circular polarization. By adopting the circularly polarized horn antenna, the problems that the existing circularly polarized horn antenna is complex in structure, low in reliability and difficult to realize are solved.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a circularly polarized horn antenna.
Background
The antenna is a device for radiating and receiving electromagnetic waves in radio equipment, and with the rapid development of wireless communication technology, higher and higher requirements are put on the design of the antenna.
The existing circularly polarized horn antenna mainly adopts a partition plate polarizer or realizes circular polarization by double-line polarization through an electric bridge, and has the problems of complex structure, low reliability and difficult realization.
Disclosure of Invention
The embodiment of the invention provides a circularly polarized horn antenna, which is used for solving the problems of complex structure, low reliability and difficulty in implementation of the conventional circularly polarized horn antenna.
In a first aspect, the present application provides a circularly polarized feedhorn, comprising: the device comprises a shell, a circular polarizer, an impedance matcher and an output connector;
the upper end of the output connector is connected with the lower end of the impedance matcher, and the upper end of the impedance matcher is connected with the circular polarizer;
the circular polarizer and the impedance matcher are positioned in the accommodating space of the shell, and the output connector part is positioned in the accommodating space of the shell;
the circular polarizer, the impedance matcher, the output connector and the housing share a central axis;
the circular polarizer has a spiral polarization line having a rotation direction, and when the rotation direction is a first direction, the circular polarizer realizes left-hand circular polarization; and when the rotating direction is the second direction, the right-hand circular polarization of the circular polarizer is realized.
By adopting the design, the circularly polarized horn antenna has the advantages of simple structure and high reliability. The output electromagnetic waves can be circularly polarized through the circular polarizer, the provided circular polarized horn antenna can receive incoming waves polarized at random, the transmitted circular polarized electromagnetic waves can be received by any polarized antenna, and the circular polarized horn antenna has good circular polarization characteristics, standing-wave ratios and high circular polarization gains in the frequency range from 1GHz to 3GHz, and can be applied to full-band navigation and transmission.
In one possible design, the first direction is a clockwise direction of rotation and the second direction is a counterclockwise direction of rotation.
In one possible design, the housing includes a flare diameter surface, a cylindrical surface, a bottom plate;
the diameter of the narrow end of the horn caliber surface is the same as that of the cylindrical surface, and the diameter of the bottom plate is the same as that of the cylindrical surface;
one end of the cylindrical surface is connected with the bottom plate, and the other end of the cylindrical surface is connected with the narrow-mouth end of the bell-mouth diameter surface;
the horn mouth diameter surface, the cylindrical surface and the bottom plate jointly enclose the accommodating space.
In a possible design, the circular polarizer is in a shape of a disk, and the circular polarizer is located at a connection surface between a narrow end of the flare diameter surface and the other end of the cylindrical surface, and is fixedly connected with the cylindrical surface through at least one screw.
In a possible design, the inner wall of the cylindrical surface is provided with at least one protruding part, and the at least one screw corresponds to the at least one protruding part one to one, so that the circular polarizer is fixedly connected with the cylindrical surface.
In one possible design, the output connector has an annular groove, the base plate is annular, the output connector is located in the center of the base plate, and the annular groove and the base plate cooperate to define the position of the output connector; the part of the output connector below the annular groove is positioned outside the accommodating space, and the part of the output connector above the annular groove is positioned in the accommodating space.
In one possible design, the housing is a metallic material.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic cross-sectional view of a circularly polarized horn antenna according to the present invention;
FIG. 2 is a schematic diagram of a circular polarizer of a circular polarized horn antenna according to the present invention;
FIG. 3 is a schematic diagram of a housing of a circularly polarized feedhorn according to the present invention;
fig. 4A is a schematic diagram of a cylindrical surface of a circular polarized horn antenna according to the present invention;
FIG. 4B is a schematic diagram of a circular polarizer mounting assembly for a circular polarized feedhorn according to the present invention;
FIG. 5 is a schematic diagram of an output connector of a circularly polarized horn antenna according to the present invention;
FIG. 6 is a graph of axial ratio versus frequency variation for a circularly polarized feedhorn according to the present invention;
FIG. 7 is a graph of standing wave ratio versus frequency variation for a circularly polarized feedhorn according to the present invention;
fig. 8 is a graph illustrating a circular polarization gain and a frequency variation of a circular polarization horn antenna according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application scenario described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems. In the description of the present invention, the term "plurality" means two or more unless otherwise specified.
The embodiment of the invention provides a circularly polarized horn antenna, which is used for solving the problems of complex structure, low reliability and difficulty in implementation of the conventional circularly polarized horn antenna.
The invention provides a circularly polarized horn antenna 100, which comprises a shell 200, an output connector 300, an impedance matcher 400 and a circular polarizer 500.
Illustratively, as shown in fig. 1, in the circularly polarized horn antenna 100, the upper end of the output connector 300 is connected to the lower end of the impedance matcher 400, and the upper end of the impedance matcher 400 is connected to the circular polarizer 500;
the circular polarizer 500 and the impedance matcher 400 are located in the accommodating space of the housing 200, and a part of the output connector 300 is located in the accommodating space of the housing 200 and a part of the output connector is located outside the accommodating space of the housing 200.
Specifically, in the circularly polarized feedhorn 100, the completely assembled housing 200, output connector 300, impedance matcher 400, and circular polarizer 500 share the same central axis.
Fig. 2 is a schematic diagram of a circular polarizer 500 of the circular polarization feedhorn 100 according to the present invention.
The circular polarizer 500 is used to realize circular polarization of electromagnetic waves, and as shown in fig. 2, the circular polarizer 500 has a circular disk shape, and a spiral polarization line 510 is provided on the circular polarizer 500, and the spiral polarization line 510 has a rotation direction, so that different circular polarizations can be realized according to the rotation direction of the spiral polarization line 510.
Illustratively, as shown in fig. 2, when the rotation direction of the spiral polarization line 510 is counterclockwise, right-hand circular polarization can be realized; when the rotation direction of the spirally polarized wire 510 is clockwise rotation, left-hand circular polarization can be realized.
Fig. 3 is a schematic diagram of a housing 200 of a circularly polarized feedhorn 100 according to the present invention.
As shown in fig. 3, the housing 200 includes a flare diameter surface 210, a cylindrical surface 220, a bottom plate 230; the diameter of the narrow end of the flare diameter surface 210 is the same as the diameter of the cylindrical surface 220 and the diameter of the bottom plate 230.
As shown in fig. 3, the flare diameter surface 210, the cylindrical surface 220, and the bottom plate 230 are connected in this order. Specifically, the narrow end of the flare diameter surface 210 is connected to one end of the cylindrical surface 220, and the other end of the cylindrical surface 220 is connected to the bottom plate 230, which together form an accommodation space.
The material of the housing 200 is a metal material, and illustratively, the material of the housing 200 is aluminum, and it is understood that the material of the housing 200 is aluminum only for example, and may also be other metal materials, which is not limited in this application.
Illustratively, the diameter of the circular polarizer 500 is the same as the diameter of the narrow end of the flare opening 210, and the circular polarizer 500 is located in the accommodating space of the housing 200, specifically, the circular polarizer 500 is located at the connecting surface where the narrow end of the flare opening 210 is connected with one end of the cylindrical surface 220, and at this time, the circular polarizer 500 is fixedly connected with the cylindrical surface 220 by at least one screw 520.
Fig. 4A is a schematic diagram illustrating a cylindrical surface 220 of a circular polarized feedhorn 100 according to the present invention.
The inner wall of the cylindrical surface 220 has at least one raised area, and illustratively, as shown in fig. 4A, the inner wall of the cylindrical surface 220 has four raised areas 221. As shown in fig. 4B, when the circular polarizer 500 is located at the connection surface where the narrow end of the bell mouth diameter surface 210 is connected to one end of the cylindrical surface 220, the four protruding portions 210 are used for supporting the circular polarizer, and at this time, the circular polarizer 500 is fixedly connected to the cylindrical surface 220 by at least one screw 520, specifically, as shown in fig. 4B, the circular polarizer 500 is fixedly connected to the cylindrical surface 220 by four screws 520, and the four screws correspond to the four protruding portions 221 one-to-one, so as to fix the circular polarizer 500 at the positions of the four protruding portions 221.
The output connector 300 is partially located in the accommodating space defined by the flared surface 210, the cylindrical surface 220, and the bottom plate 230, as shown in fig. 5, the output connector 300 has an annular groove 310, and specifically, a first limiting plate 320 is disposed above the annular groove 310 of the output connector 300, and a second limiting plate 330 is disposed below the annular groove 310. The bottom plate 230 is circular, a through hole is formed in the center of the bottom plate 230, the output connector 300 is located in the through hole in the center of the bottom plate 230, the bottom plate 230 is matched with the annular groove 310 of the output connector, as shown in fig. 1, the portion of the bottom plate 230 close to the center is located in the annular groove 310, and at this time, the first limiting plate and the second limiting plate can limit the output connector 300. The portion of the output connector 300 above the annular groove 310 is located in the accommodating space, the portion below the annular groove 310 is located outside the accommodating space, the upper end of the output connector 300 may be connected to the impedance matcher 400, and the lower end of the output connector 300 may be connected to an external transmission line.
The test results of the circularly polarized feedhorn 100 of the present invention are shown in fig. 6, 7 and 8.
Fig. 6 is a graph of axial ratio and frequency variation of a circular polarized horn antenna provided in the present invention, in which the abscissa represents frequency and the ordinate represents axial ratio.
As shown in fig. 6, the axial ratio of the circularly polarized feedhorn 100 provided by the present invention in the frequency band from 1GHz to 3GHz is less than 2, and the requirement that the axial ratio is less than 3 is satisfied, so that the circularly polarized feedhorn 100 provided by the present invention has a good circular polarization characteristic in the frequency band from 1GHz to 3 GHz.
Fig. 7 is a graph of a standing-wave ratio and a frequency variation of a circular polarized horn antenna provided by the present invention, wherein an abscissa represents a frequency and an ordinate represents a standing-wave ratio.
As shown in fig. 7, the standing-wave ratio of most frequency bands of the circularly polarized feedhorn 100 provided by the present invention in the frequency bands from 1GHz to 3GHz is less than 2, that is, the circular polarized feedhorn 100 provided by the present invention in the frequency bands from 1GHz to 3GHz meets the requirement that the classical value of the standing-wave ratio is less than 2.
Fig. 8 is a graph of a circular polarization gain and a frequency variation of a circular polarization horn antenna provided by the present invention, wherein the abscissa is frequency and the ordinate is circular polarization gain.
As shown in fig. 8, the circularly polarized gain of the circularly polarized feedhorn 100 provided by the present invention in the frequency band from 1GHz to 3GHz is greater than 6db, and thus, the circularly polarized feedhorn 100 provided by the present invention has a higher circularly polarized gain in the frequency band from 1GHz to 3 GHz.
The existing circularly polarized horn antenna has the problems of complex structure, low reliability and difficulty in realization, and the circularly polarized horn antenna is simple in structure and high in reliability by adopting the design. The output electromagnetic waves can be circularly polarized through the circular polarizer, the provided circular polarized horn antenna can receive incoming waves polarized at random, the transmitted circular polarized electromagnetic waves can be received by any polarized antenna, and the circular polarized horn antenna has good circular polarization characteristics, standing-wave ratios and high circular polarization gains in the frequency range from 1GHz to 3GHz, and can be applied to full-band navigation and transmission.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A circularly polarized feedhorn, comprising: the device comprises a shell, a circular polarizer, an impedance matcher and an output connector;
the upper end of the output connector is connected with the lower end of the impedance matcher, and the upper end of the impedance matcher is connected with the circular polarizer;
the circular polarizer and the impedance matcher are positioned in the accommodating space of the shell, and the output connector part is positioned in the accommodating space of the shell;
the circular polarizer, the impedance matcher, the output connector and the housing share a central axis;
the circular polarizer has a spiral polarization line having a rotation direction, and when the rotation direction is a first direction, the circular polarizer realizes left-hand circular polarization; and when the rotating direction is the second direction, the right-hand circular polarization of the circular polarizer is realized.
2. The circularly polarized feedhorn of claim 1, wherein the first direction is a clockwise direction of rotation and the second direction is a counterclockwise direction of rotation.
3. The circularly polarized feedhorn of claim 1, wherein said housing comprises a flare surface, a cylindrical surface, a bottom plate;
the diameter of the narrow end of the horn caliber surface is the same as that of the cylindrical surface, and the diameter of the bottom plate is the same as that of the cylindrical surface;
one end of the cylindrical surface is connected with the bottom plate, and the other end of the cylindrical surface is connected with the narrow-mouth end of the bell-mouth diameter surface;
the horn mouth diameter surface, the cylindrical surface and the bottom plate jointly enclose the accommodating space.
4. The circularly polarized feedhorn of claim 3, wherein the circular polarizer is in the shape of a disk, and the circular polarizer is fixedly connected to the cylindrical surface by at least one screw at a connection surface between the narrow end of the horn aperture surface and the other end of the cylindrical surface.
5. The circularly polarized feedhorn of claim 4, wherein the inner wall of the cylindrical surface has at least one raised portion, and wherein the at least one screw is in a one-to-one correspondence with the at least one raised portion to fixedly attach the circular polarizer to the cylindrical surface.
6. The circularly polarized feedhorn of claim 3, wherein the output connector has an annular recess, the base plate is annular, the output connector is centrally located on the base plate, and the annular recess cooperates with the base plate to define a position of the output connector; the part of the output connector below the annular groove is positioned outside the accommodating space, and the part of the output connector above the annular groove is positioned in the accommodating space.
7. The circularly polarized feedhorn of claim 1, wherein said housing is a metallic material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211562256.2A CN115966909A (en) | 2022-12-07 | 2022-12-07 | Circularly polarized horn antenna |
| PCT/CN2023/128070 WO2024120062A1 (en) | 2022-12-07 | 2023-10-31 | Circularly polarized horn antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211562256.2A CN115966909A (en) | 2022-12-07 | 2022-12-07 | Circularly polarized horn antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115966909A true CN115966909A (en) | 2023-04-14 |
Family
ID=87359310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211562256.2A Pending CN115966909A (en) | 2022-12-07 | 2022-12-07 | Circularly polarized horn antenna |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115966909A (en) |
| WO (1) | WO2024120062A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024120062A1 (en) * | 2022-12-07 | 2024-06-13 | 上海海积信息科技股份有限公司 | Circularly polarized horn antenna |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134205A (en) * | 2017-12-13 | 2018-06-08 | 上海航天电子有限公司 | X-band medium electromagnetic horn |
| CN110034404B (en) * | 2019-04-29 | 2021-07-16 | 哈尔滨工业大学 | Broadband wide-beam circularly polarized segmented spiral horn antenna |
| US11075461B2 (en) * | 2019-12-16 | 2021-07-27 | City University Of Hong Kong | Horn antenna |
| CN115117606B (en) * | 2022-06-30 | 2024-02-09 | 中国电子科技集团公司第十四研究所 | Low-profile circularly polarized antenna based on rotary feed |
| CN115966909A (en) * | 2022-12-07 | 2023-04-14 | 上海海积信息科技股份有限公司 | Circularly polarized horn antenna |
-
2022
- 2022-12-07 CN CN202211562256.2A patent/CN115966909A/en active Pending
-
2023
- 2023-10-31 WO PCT/CN2023/128070 patent/WO2024120062A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024120062A1 (en) * | 2022-12-07 | 2024-06-13 | 上海海积信息科技股份有限公司 | Circularly polarized horn antenna |
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| Publication number | Publication date |
|---|---|
| WO2024120062A1 (en) | 2024-06-13 |
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