CN108539429A - A kind of wideband omnidirectional slant-polarized antennas for metallic carrier - Google Patents
A kind of wideband omnidirectional slant-polarized antennas for metallic carrier Download PDFInfo
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- CN108539429A CN108539429A CN201810280637.9A CN201810280637A CN108539429A CN 108539429 A CN108539429 A CN 108539429A CN 201810280637 A CN201810280637 A CN 201810280637A CN 108539429 A CN108539429 A CN 108539429A
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- antenna
- slant
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- 230000010287 polarization Effects 0.000 claims abstract description 111
- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 230000005855 radiation Effects 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 13
- -1 is 0.032 λ0~0.08 λ0 Substances 0.000 description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- 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
- H01Q15/242—Polarisation converters
-
- 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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
A kind of wideband omnidirectional slant-polarized antennas for metallic carrier belongs to wireless communication technology field.The slant-polarized antennas includes monocone antenna and the hollow cylinder inclined polarization device on the outside of monocone antenna, and the monocone antenna is overlapped with the axis of hollow cylinder inclined polarization device, and spacing is 0.1 λ0~0.3 λ0；The hollow cylinder inclined polarization device includes the coaxial polarization grid of n-layer, wherein, every layer of polarization grid are made of the metal strip arranged in parallel for being covered in hollow medium cylindrical side, n-layer polarization grid are represented sequentially as the 1st from the inside to the outside, 2 ..., n-layer polarization grid, 1st, 2 ..., n-layer polarization grid in metal strip and the floor of monocone antenna between angle be followed successively by 0, θ1, θ2..., θn‑2, θn‑1, wherein θn‑1=40~60 degree, 0<θ1<θ2<….<θn‑2<θn‑1.The present invention generates broadband omnidirectional electromagnetic wave by monocone antenna, then the electromagnetic wave that the electromagnetic wave torsion of vertical polarization is inclined polarization is had broadband, the characteristic of omnidirectional radiation by grounded inclined polarization device.
Description
Technical field
The invention belongs to wireless communication technology fields, and in particular to a kind of wideband omnidirectional inclined polarization day for metallic carrier
Line.
Background technology
In wireless communications, antenna is mainly used for the electric signal in transmitter being radiated in free space, or
Electromagnetic wave signal in space is converted to electric signal transmission to receiver.Transmitting antenna is mainly the electromagnetism for controlling free space
Wave power distribution and polarization of electromagnetic wave mode etc., and the processing of signal is then completed by other modules in communication system.
With the rapid development of electronic technology and the continuous variation of electromagnetic signal environment, the requirement to antenna is higher and higher, is receiving and dispatching
On the basis of signal, also to the directional diagram of antenna, gain, polarization, bandwidth etc., more stringent requirements are proposed.Wherein, it is answered certain
There is the requirement of omnidirectional with environment such as indoor base station, mobile target (unmanned plane etc.) to the directional diagram of antenna, while in order to enhance
Adaptability of the equipment to complicated electromagnetic propagation environment and the detectability to different incoming wave polarization modes, propose tiltedly antenna
Polarized requirement can cover horizontal polarization and vertical polarization simultaneously.Limitation due to installation space to antenna amount gradually increases
The conditions such as big volume of transmitted data demand and compatibility also proposed requirement to the bandwidth of antenna.Paper《45 ° of inclined polarizations are complete
To Antenna Design》In propose a kind of broadband inclined polarization omnidirectional antenna, realize omnidirectional radiation, wide band inclined polarization electromagnetism
Wave, but the antenna can not be suitable for metal carrier surface.
Invention content
In order to solve the above technical problems, the object of the present invention is to provide a kind of wideband omnidirectional inclined polarizations for metallic carrier
Antenna, which can generate omnidirectional radiation, polarization mode is that inclined polarization, out-of-roundness index be good, wide band inclined polarization electromagnetism
Wave.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of wideband omnidirectional slant-polarized antennas for metallic carrier, including monocone antenna and on the outside of monocone antenna
Hollow cylinder inclined polarization device, the monocone antenna are overlapped with the axis of hollow cylinder inclined polarization device, and spacing is 0.1 λ0~
0.3λ0, λ0For the free space wavelength corresponding to working frequency range centre frequency；
The hollow cylinder inclined polarization device includes the coaxial polarization grid of n-layer, wherein every layer of polarization grid are hollow by being covered in
The metal strip composition arranged in parallel of dielectric cylinder side, n-layer polarization grid are represented sequentially as the 1st from the inside to the outside, 2 ..., n-layer pole
Change grid, the 1st, 2 ..., n-layer polarization grid in metal strip and the floor of monocone antenna between angle be followed successively by 0, θ1, θ2...,
θn-2, θn-1, wherein θn-1=40~60 degree, 0<θ1<θ2<….<θn-2<θn-1, n is the positive integer more than 1；Between adjacent polarized grid
Spacing be 0.1 λ0~0.3 λ0, the height of the hollow cylinder inclined polarization device is more than the height of monocone antenna.
Further, the diameter on the floor of the monocone antenna is more than the diameter of hollow cylinder inclined polarization device bottom surface, single
Cone antenna is used to generate the electromagnetic wave of omnidirectional radiation.
Further, every layer of polarization grid are covered in hollow medium cylindrical side, i.e., are empty between adjacent two layers polarization grid
Heart dielectric cylinder is filled, and the thickness of the hollow medium cylinder between the adjacent two layers polarization grid is 0.1 λ0~0.3 λ0(i.e. two layers
Spacing between polarization grid), the relative dielectric constant of hollow medium cylinder is 2~4.
Further, in every layer of polarization grid, the spacing between adjacent metal item is 0.032 λ0~0.08 λ0, metal strip
Width be 0.032 λ0~0.08 λ0。
Further, every layer of polarization grid in the hollow cylinder inclined polarization device are in electrical contact with the floor of monocone antenna
(i.e. hollow cylinder inclined polarization device is grounded) reduces inclined polarization device to single cone day by improving inclined polarization device Surface current distribution
The influence of line, and then improve the polarization performance of inclined polarization device and the radiance of antenna.
Compared with prior art, beneficial effects of the present invention are：
The present invention provides a kind of wideband omnidirectional slant-polarized antennas for metallic carrier, and wideband is generated by monocone antenna
Band omnidirectional electromagnetic wave, then grounded inclined polarization device have the electromagnetic wave that the electromagnetic wave torsion of vertical polarization is inclined polarization
There are broadband, the characteristic of omnidirectional radiation.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of wideband omnidirectional slant-polarized antennas for metallic carrier provided by the invention
(a) and the sectional view (b) of monocone antenna；
Fig. 2 is the structural schematic diagram of the 1st layer of 0 degree of polarization grid in embodiment；
Fig. 3 is the structural schematic diagram of the 2nd layer of 20 degree of polarization grid in embodiment；
Fig. 4 is the structural schematic diagram of the 3rd layer of 40 degree of polarization grid in embodiment；
Fig. 5 is the structural schematic diagram of the 4th layer of 60 degree of polarization grid in embodiment；
Fig. 6 is the vertical view (a) and side view (b) for the slant-polarized antennas that embodiment obtains；
Fig. 7 is the S for the slant-polarized antennas that embodiment obtains11Test result；
Fig. 8 is the directional diagram for the slant-polarized antennas that embodiment obtains；
Fig. 9 is the slant-polarized antennas that embodiment obtainsAndTest result.
Specific implementation mode
With reference to the accompanying drawings and examples, technical scheme of the present invention is described in detail.
A kind of wideband omnidirectional slant-polarized antennas for metallic carrier, including monocone antenna and on the outside of monocone antenna
Hollow cylinder inclined polarization device, the monocone antenna are overlapped with the axis of hollow cylinder inclined polarization device, monocone antenna top side
Spacing between edge and hollow cylinder inclined polarization device is 0.1 λ0~0.3 λ0, λ0For corresponding to working frequency range centre frequency from
By space wavelength；
The hollow cylinder inclined polarization device includes the coaxial polarization grid of n-layer, wherein every layer of polarization grid are hollow by being covered in
The a plurality of metal strip composition arranged in parallel of dielectric cylinder side, n-layer polarize grid table successively on the direction far from monocone antenna
Be shown as the 1st, 2 ..., n-layer polarization grid, the 1st, 2 ..., the metal strip in n-layer polarization grid and the angle between the floor of monocone antenna
It is followed successively by 0, θ1, θ2..., θn-2, θn-1, wherein θn-1=40~60 degree, 0<θ1<θ2<….<θn-2<θn-1, n is just whole more than 1
Number；Spacing between adjacent polarized grid is 0.1 λ0~0.3 λ0, the height of the hollow cylinder inclined polarization device is more than monocone antenna
Height.
Further, the diameter on the floor of the monocone antenna is more than the diameter of hollow cylinder inclined polarization device bottom surface, institute
State electromagnetic wave of the monocone antenna for generating omnidirectional radiation.
Further, every layer of polarization grid are covered in hollow medium cylindrical side, i.e., are empty between adjacent two layers polarization grid
Heart dielectric cylinder is filled, and the thickness of the hollow medium cylinder between the adjacent two layers polarization grid is 0.1 λ0~0.3 λ0(i.e. two layers
Spacing between polarization grid), the relative dielectric constant of hollow medium cylinder is 2~4.
Further, in every layer of polarization grid, the spacing between adjacent metal item is 0.032 λ0~0.08 λ0, metal strip
Width be 0.032 λ0~0.08 λ0。
Further, every layer of polarization grid in the hollow cylinder inclined polarization device are in electrical contact with the floor of monocone antenna
(i.e. hollow cylinder inclined polarization device is grounded) reduces inclined polarization device to single cone day by improving inclined polarization device Surface current distribution
The influence of line, and then improve the polarization performance of inclined polarization device and the radiance of antenna.
Embodiment
A kind of wideband omnidirectional slant-polarized antennas for metallic carrier as shown in Fig. 1 (a), including monocone antenna and is located at
Two parts of hollow cylinder inclined polarization device on the outside of monocone antenna；
It is the sectional view of the monocone antenna as shown in Fig. 1 (b)；The monocone antenna be copper, height 21mm, on
Radius is 11.5mm, and lower radius is 1mm, and a diameter of 100mm in floor can generate the vertical polarization electromagnetism of 6-18GHz omnidirectional radiations
Wave.
The hollow cylinder inclined polarization device includes 4 layers of coaxial polarization grid, and every layer of polarization grid are by being covered in hollow medium
The metal strip composition that the copper foil arranged in parallel of cylindrical side is formed, wherein metal strip and monocone antenna in the 1st layer of polarization grid
Floor between angle be 0 degree, the angle between metal strip and the floor of monocone antenna in the 2nd layer of polarization grid is 20 degree,
The angle between metal strip and the floor of monocone antenna in 3rd layer of polarization grid is 40 degree, the metal strip in the 4th layer of polarization grid with
Angle between the floor of monocone antenna is 60 degree；
Specifically, as shown in Fig. 2, being the structural schematic diagram of the 1st layer of 0 degree of polarization grid in part, wherein the 1st layer of grid that polarizes
Height is 24mm, and the width of metal strip is 1.2mm in the grid that polarize, and the spacing between adjacent metal item is 1.2mm, metal strip and ground
Angle between plate is 0 degree, and 0 degree of polarization grid is 3mm close to monocone antenna and with the distance between monocone antenna tip edge, 0
Filled polytetrafluoroethylene medium between degree polarization grid and monocone antenna.
As shown in figure 3, for the structural schematic diagram of the 20 degree polarization grid in the 2nd layer of part, wherein the height of the 2nd layer of grid that polarizes is
24mm, the width of metal strip is 1.2mm in the grid that polarize, and the spacing between adjacent metal item is 1.2mm, between metal strip and floor
Angle be 20 degree, the spacing that 20 degree of polarization grid are located on the outside of 0 degree polarization grid and between 0 degree polarization grid are 6mm, and 20 degree are polarized
Filled polytetrafluoroethylene medium between grid and 0 degree of polarization grid.
As shown in figure 4, for the structural schematic diagram of the 40 degree polarization grid in the 3rd layer of part, wherein the height of the 3rd layer of grid that polarizes is
24mm, the width of metal strip is 1.2mm in the grid that polarize, and the spacing between adjacent metal item is 1.2mm, between metal strip and floor
Angle be 40 degree, it is 6.5mm that 40 degree of polarization grid, which are located at the spacing on the outside of 20 degree polarization grid and between 20 degree grid that polarize, 40 degree
Polarize filled polytetrafluoroethylene medium between grid and 20 degree of polarization grid.
As shown in figure 5, for the structural schematic diagram of the 60 degree polarization grid in the 4th layer of part, wherein the height of the 4th layer of grid that polarizes is
24mm, the width of metal strip is 1.2mm in the grid that polarize, and the spacing between adjacent metal item is 1.2mm, between metal strip and floor
Angle be 60 degree, the spacing that 60 degree of polarization grid are located on the outside of 40 degree polarization grid and between 40 degree grid that polarize are 5mm, 60 degree of poles
Change filled polytetrafluoroethylene medium between grid and 40 degree of polarization grid.
Fig. 7 is the S for the slant-polarized antennas that embodiment obtains11Test result；It can be seen from the figure that the S of the antenna11's
Numerical value major part is in -10dB hereinafter, and all below -7.5dB.Fig. 8 is the directional diagram for the slant-polarized antennas that embodiment obtains；
It can be seen from the figure that the out-of-roundness of the antenna radiation pattern is functional.Fig. 9 is the slant-polarized antennas that embodiment obtainsAndTest result；It can be seen from the figure that the slant-polarized antennas that embodiment obtains is in 6-18GHz
Most of frequency point can generate the electromagnetic wave close to 45 degree.
The above is only the preferred embodiment of the present invention, is not intended to restrict the invention, it is noted that for this field
Those of ordinary skill for, without departing from the technical principles of the invention, can also make several improvements and modification, this
A little improvement and modification also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of wideband omnidirectional slant-polarized antennas for metallic carrier, including monocone antenna and the sky on the outside of monocone antenna
Heart cylinder inclined polarization device, the monocone antenna are overlapped with the axis of hollow cylinder inclined polarization device, and spacing is 0.1 λ0~0.3
λ0, λ0For the free space wavelength corresponding to working frequency range centre frequency；
The hollow cylinder inclined polarization device includes the coaxial polarization grid of n-layer, wherein every layer of polarization grid are by being covered in hollow medium
The metal strip composition arranged in parallel of cylindrical side, n-layer polarization grid are represented sequentially as the 1st from the inside to the outside, 2 ..., n-layer polarization grid,
1st, 2 ..., n-layer polarization grid in metal strip and the floor of monocone antenna between angle be followed successively by 0, θ1, θ2..., θn-2,
θn-1, wherein θn-1=40~60 degree, 0<θ1<θ2<….<θn-2<θn-1, n is the positive integer more than 1；Between between adjacent polarized grid
Away from for 0.1 λ0~0.3 λ0, the height of the hollow cylinder inclined polarization device is more than the height of monocone antenna.
2. the wideband omnidirectional slant-polarized antennas according to claim 1 for metallic carrier, which is characterized in that single cone
The diameter on the floor of antenna is more than the diameter of hollow cylinder inclined polarization device bottom surface.
3. the wideband omnidirectional slant-polarized antennas according to claim 1 for metallic carrier, which is characterized in that every layer described
It polarizes in grid, the spacing between adjacent metal item is 0.032 λ0~0.08 λ0, the width of metal strip is 0.032 λ0~0.08 λ0。
4. the wideband omnidirectional slant-polarized antennas according to claim 1 for metallic carrier, which is characterized in that described hollow
Every layer of polarization grid in cylindrical inclined polarization device are in electrical contact with the floor of monocone antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810280637.9A CN108539429B (en) | 2018-03-27 | 2018-03-27 | Broadband omnidirectional oblique polarization antenna for metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810280637.9A CN108539429B (en) | 2018-03-27 | 2018-03-27 | Broadband omnidirectional oblique polarization antenna for metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108539429A true CN108539429A (en) | 2018-09-14 |
| CN108539429B CN108539429B (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810280637.9A Expired - Fee Related CN108539429B (en) | 2018-03-27 | 2018-03-27 | Broadband omnidirectional oblique polarization antenna for metal carrier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190384A (en) * | 2019-06-21 | 2019-08-30 | 四川九洲电器集团有限责任公司 | A kind of omni-beam figuration discone antenna |
| CN113206376A (en) * | 2020-01-31 | 2021-08-03 | 夏普株式会社 | Communication device |
| CN113851835A (en) * | 2021-12-01 | 2021-12-28 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
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2018
- 2018-03-27 CN CN201810280637.9A patent/CN108539429B/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190384A (en) * | 2019-06-21 | 2019-08-30 | 四川九洲电器集团有限责任公司 | A kind of omni-beam figuration discone antenna |
| CN113206376A (en) * | 2020-01-31 | 2021-08-03 | 夏普株式会社 | Communication device |
| CN113851835A (en) * | 2021-12-01 | 2021-12-28 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
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| Publication number | Publication date |
|---|---|
| CN108539429B (en) | 2020-08-11 |
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