CN108075217B - Novel omnidirectional antenna - Google Patents
Novel omnidirectional antenna Download PDFInfo
- Publication number
- CN108075217B CN108075217B CN201810051944.XA CN201810051944A CN108075217B CN 108075217 B CN108075217 B CN 108075217B CN 201810051944 A CN201810051944 A CN 201810051944A CN 108075217 B CN108075217 B CN 108075217B
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- antenna
- metal
- radiation
- coaxial cable
- dielectric plate
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- 239000002184 metal Substances 0.000 claims abstract description 65
- 230000005855 radiation Effects 0.000 claims abstract description 33
- 238000005192 partition Methods 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
Abstract
The invention provides a novel omnidirectional antenna, which comprises a dielectric plate, wherein the dielectric plate is supported on a metal base through a supporting column, a metal partition plate is arranged between the dielectric plate and the metal base, a feed port is etched on the upper surface of the dielectric plate, a radiation oscillator is etched on the lower surface of the dielectric plate in a circuit printing mode, the feed port is welded with a core wire of a coaxial cable, an outer conductor of the coaxial cable is welded with the radiation oscillator to form a symmetrical oscillator structure, the coaxial cable passes through the metal partition plate and is connected to the outside of an antenna body, the antenna is fixed on the metal base through the metal supporting column, and the metal supporting column can compensate blind areas of horizontal radiation of the antenna and is used for realizing horizontal omnidirectional radiation of the antenna; by adding the metal partition plate between the antenna and the base, radiation above the antenna can be enhanced, radiation energy right above the antenna is ensured, and hemispherical radiation directivity is realized.
Description
Technical Field
The invention relates to the fields of communication, electronic countermeasure and navigation, in particular to a novel omni-directional antenna.
Background
Today, technology is changing day by day, and the development of the communication, electronic countermeasure and navigation industries is particularly rapid, so that higher and higher requirements are put on the indexes of the antenna, especially in the aspects of broadband characteristics (standing waves, patterns and gains), cross polarization characteristics, main lobe beam width fluctuation along with frequency, beam convergence characteristics and the like.
Conventional omni-directional antennas are widely used in various fields of mobile communication, electronic countermeasure and navigation. The antenna is generally composed of a vertical dipole, a monopole and derivatives thereof, and has the advantages that the omni-directionality in a frequency band is better (out-of-roundness is generally within 3 dB), but the antenna has several defects that firstly, the gain in a passband is not high (generally about 3 dBi), and secondly, the radiation pattern of the antenna is generally butterfly-shaped, namely, zero points are arranged along the direction of the dipole, namely, radiation blind areas are arranged, so that a novel omni-directional antenna is urgently needed to solve the problem of the blind areas of the omni-directional antenna at present.
Disclosure of Invention
The invention aims to solve the technical problems of low gain and radiation blind area of the traditional omni-directional antenna, and adopts a brand new structural design of a printed antenna and a metal support column to achieve the purpose of solving the problems.
The technical scheme of the invention is as follows: the utility model provides a novel omnidirectional antenna, includes the dielectric plate, the dielectric plate passes through the support column to be supported on metal base, install metal baffle between dielectric plate and the metal base, the upper surface sculpture at the dielectric plate has the feed inlet, and the lower surface of dielectric plate has the radiation oscillator through circuit printing mode sculpture, and the core wire welding of feed inlet and coaxial cable, coaxial cable's outer conductor and radiation oscillator welding form the dipole structure, coaxial cable passes the metal baffle and is connected outside the antenna body.
The lower end of the support column is installed in a bottom installation hole formed in the metal base, and the upper end of the support column is installed in an upper installation hole formed in the dielectric plate correspondingly.
The metal partition plate is provided with a through hole, the support column penetrates through the through hole to be connected with the dielectric plate and the metal base, the metal partition plate moves up and down on the support column so as to adjust the distance between the support column and the metal base according to the requirement, and the metal partition plate is also provided with a perforation which is convenient for a coaxial cable to penetrate through.
The metal base comprises a mounting bottom surface, an outer ring shell and an inner ring shell, an annular groove is formed between the outer ring shell and the inner ring shell, and a screw hole which is convenient for mounting the antenna is formed in a bottom plate of the annular groove.
The inner ring shell is provided with a cable seat which is convenient for fixing the coaxial cable, and the cable seat is provided with a groove for clamping the coaxial cable.
The diameter of the groove is the same as the diameter of the coaxial cable.
The lowest part of the groove is flush with or higher than the upper edge of the outer ring shell.
The diameter of the metal separator is the same as that of the inner ring shell.
The support columns are metal support columns.
The support column is provided with four for compensate antenna horizontal radiation's blind area.
The beneficial effects of the invention are as follows: the antenna is fixed on the metal base through the metal support column, and the metal support column can compensate the blind area of the horizontal radiation of the antenna and is used for realizing the horizontal omnidirectional radiation of the antenna; by adding the metal partition plate between the antenna and the base, radiation above the antenna can be enhanced, radiation energy right above the antenna is ensured, and hemispherical radiation directivity is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
fig. 3 is a schematic side view of the present invention.
Reference numerals in the drawings denote: 1-dielectric plate, 2-metal partition plate, 3-support column, 4-metal base, 5-coaxial cable, 10-feed port, 11-upper mounting hole, 12-radiation vibrator, 20-perforation, 21-through hole, 40-outer ring shell, 41-inner ring shell, 42-groove, 43-annular groove, 44-screw hole, 45-mounting bottom surface, 46-lower mounting hole, 47-cable holder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, the technical scheme of the present invention is as follows: the utility model provides a novel omnidirectional antenna, includes dielectric plate 1, dielectric plate 1 supports on metal base 4 through support column 3, install metal baffle 2 between dielectric plate 1 and the metal base 4, the setting of metal baffle 2 guarantees the radiant energy directly over the antenna, and the upper surface sculpture of dielectric plate 1 has feed inlet 10, and the lower surface of dielectric plate 1 has radiator 12 through the etching of circuit printing mode, and feed inlet 10 welds with coaxial cable 5's heart yearn 50, and coaxial cable 5's outer conductor 51 welds with radiator 12 and forms the dipole structure, coaxial cable 5 passes metal baffle 2 and is connected outside the antenna body.
In order to facilitate the installation of the support column 3, the lower end of the support column 3 is installed in a bottom installation hole 46 formed in the metal base 4, and the upper end of the support column 3 is installed in an upper installation hole 11 correspondingly formed in the dielectric plate 1.
The metal partition plate 2 is provided with a through hole 21, the support column 3 passes through the through hole 21 and is connected with the dielectric plate 1 and the metal base 4, the metal partition plate 2 moves up and down on the support column 3, and the distance between the metal partition plate 2 and the metal base 4 is adjusted according to the requirement.
The metal separator 2 is also provided with perforations 20 for facilitating the passage of the coaxial cable 5.
The metal base 4 includes a mounting bottom 45, an outer ring housing 40 and an inner ring housing 41, an annular groove 43 is formed between the outer ring housing 40 and the inner ring housing 41, and a screw hole 44 for facilitating the mounting of the antenna is formed in the bottom plate of the annular groove 43.
The inner ring shell 41 is provided with a cable seat 47 for conveniently fixing the coaxial cable 5, and the cable seat 47 is provided with a groove 42 for clamping the coaxial cable 5.
The diameter of the groove 42 is the same as that of the coaxial cable 5, so that the coaxial cable 5 is conveniently clamped.
The lowest part of the groove 42 is flush with the upper edge of the outer ring housing 40 or higher than the upper edge of the outer ring housing 40, and the design can prevent the coaxial cable 5 from being crushed and broken, and reduce the damage to the coaxial cable 5.
To enhance the radiation above the antenna, the diameter of the metal separator 2 is the same as the diameter of the inner ring housing 41.
In order to compensate the blind area of the horizontal radiation of the antenna, the support columns 3 are metal support columns, and four support columns 3 are arranged.
According to the novel omnidirectional antenna, the antenna is fixed on the metal base through the metal support column, so that the metal support column can compensate the blind area of horizontal radiation of the antenna and is used for realizing horizontal omnidirectional radiation of the antenna; by adding the metal partition plate between the antenna and the base, radiation above the antenna can be enhanced, radiation energy right above the antenna is ensured, and hemispherical radiation directivity is realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A novel omni-directional antenna, characterized in that: the antenna comprises a dielectric plate, wherein the dielectric plate is supported on a metal base through a support column, a metal partition plate is arranged between the dielectric plate and the metal base, a feed port is etched on the upper surface of the dielectric plate, a radiation oscillator is etched on the lower surface of the dielectric plate in a circuit printing mode, the feed port is welded with a core wire of a coaxial cable, an outer conductor of the coaxial cable is welded with the radiation oscillator to form a symmetrical oscillator structure, and the coaxial cable passes through the metal partition plate and is connected to the outside of the antenna body;
the lower ends of the support columns are arranged in bottom mounting holes formed in the metal base, and the upper ends of the support columns are arranged in upper mounting holes correspondingly formed in the dielectric plate;
the metal partition plate is provided with a through hole, the support column penetrates through the through hole to be connected with the dielectric plate and the metal base, the metal partition plate moves up and down on the support column so as to adjust the distance between the metal partition plate and the metal base according to the requirement, the metal partition plate is also provided with a through hole which is convenient for a coaxial cable to pass through,
the support columns are metal support columns,
four support columns are arranged and used for compensating blind areas of horizontal radiation of the antenna;
fixing the antenna on the metal base through a metal support column, wherein the metal support column compensates a blind area of horizontal radiation of the antenna and is used for realizing horizontal omnidirectional radiation of the antenna; by adding a metal baffle between the antenna and the base, radiation above the antenna is enhanced, radiation energy right above the antenna is ensured, and hemispherical radiation directivity is realized;
the metal base comprises a mounting bottom surface, an outer ring shell and an inner ring shell, an annular groove is formed between the outer ring shell and the inner ring shell, and a screw hole which is convenient for mounting the antenna is formed in a bottom plate of the annular groove.
2. A novel omni-directional antenna according to claim 1, wherein: the inner ring shell is provided with a cable seat which is convenient for fixing the coaxial cable, and the cable seat is provided with a groove for clamping the coaxial cable.
3. A novel omni-directional antenna according to claim 2, wherein: the diameter of the groove is the same as the diameter of the coaxial cable.
4. A novel omni-directional antenna according to claim 2, wherein: the lowest part of the groove is flush with or higher than the upper edge of the outer ring shell.
5. A novel omni-directional antenna according to claim 2, wherein: the diameter of the metal separator is the same as that of the inner ring shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051944.XA CN108075217B (en) | 2018-01-19 | 2018-01-19 | Novel omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051944.XA CN108075217B (en) | 2018-01-19 | 2018-01-19 | Novel omnidirectional antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108075217A CN108075217A (en) | 2018-05-25 |
| CN108075217B true CN108075217B (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810051944.XA Active CN108075217B (en) | 2018-01-19 | 2018-01-19 | Novel omnidirectional antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN108075217B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865292B (en) * | 2022-04-26 | 2024-04-05 | 西安矩阵无线科技有限公司 | UHF miniaturized low-profile antenna |
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| CN108075217A (en) | 2018-05-25 |
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