CN105449346B - A kind of wideband dual polarized omnidirectional antenna of superelevation isolation - Google Patents
A kind of wideband dual polarized omnidirectional antenna of superelevation isolation Download PDFInfo
- Publication number
- CN105449346B CN105449346B CN201510925221.4A CN201510925221A CN105449346B CN 105449346 B CN105449346 B CN 105449346B CN 201510925221 A CN201510925221 A CN 201510925221A CN 105449346 B CN105449346 B CN 105449346B
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- rectangle
- antenna
- dual polarized
- wideband dual
- feed element
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Classifications
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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
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention discloses a kind of wideband dual polarized omnidirectional antennas of superelevation isolation, including antenna radiation unit, horizontal feed element and vertical feed element, rectangular horn and rectangle the back chamber that the antenna radiation unit is open by a bore face are constituted, the rectangular horn and rectangle back chamber share a vertical plane, the horizontal feed element is located in rectangular horn, and it is intracavitary that the vertical feed element is located at rectangle back.The present invention has good horizontal omnidirectional radiation characteristic.
Description
Technical field
The present invention relates to mobile communication antenna technical field, in particular to a kind of wideband dual polarized omnidirectional antennas of superelevation isolation
Line.
Background technique
With the development of wireless communication technique, wireless communication has become indispensable a part in daily life,
Number of users is also increasingly huge, and higher requirements are also raised for the delivery rate of information by user；At the same time, different nothing
Line communication system working frequency range is also not quite similar, and broad-band antenna can work in multiple frequency ranges, is the wireless communication of different systems
Service is provided, so as to realize the miniaturization of communication system, while meeting people for the needs of high-speed communication.
Dual polarized antenna can receive simultaneously or emit two mutually orthogonal electromagnetic waves, so as to greatly improve
The message data rate of wireless communication system, while can effectively inhibit the signal due to caused by multipath transmisstion effect quickly to decline
It is weak, improve communication quality.
In a wireless communication system, omnidirectional antenna has important application.Omnidirectional antenna refers to that one kind can be in horizontal plane
The antenna of interior 360 ° of homogeneous radiations, it has same radiation to different directions in horizontal plane and receives ability.
Summary of the invention
In order to overcome shortcoming and deficiency of the existing technology, it is wideband dual polarized complete that the present invention provides a kind of superelevation isolation
To antenna.
The present invention adopts the following technical scheme:
A kind of wideband dual polarized omnidirectional antenna of superelevation isolation, including antenna radiation unit, horizontal feed element and vertical
Feed element, rectangular horn and rectangle the back chamber that the antenna radiation unit is open by a bore face are constituted, the rectangle loudspeaker
With rectangle back chamber share a vertical plane, the horizontal feed element is located in rectangular horn, the vertical feed element position
It is carried on the back in rectangle intracavitary.
The horizontal feed element is gradual change form sheet metal, and specially oval gradual change, round gradual change or parabola are gradually
Become.
The gradual change form sheet metal is opened a way close to bore face one end, and other end midpoint is connected with 50 ohm coaxial lines
It connects.
The vertical feed element is rectangular metal sheet, is vertically arranged in the opposite position that vertical plane is shared close to rectangle back chamber
It sets.
The rectangular metal sheet both ends open circuit, apart from 0.01 λ of rectangular metal sheet top0-0.1λ0Place and 50 ohm coaxials
Line is connected
The rectangle back three face of chamber is provided with gap, and three face is the opposite and left and right side for sharing vertical plane.
The bore face length and width of the rectangular horn are respectively 0.5 λ0-1.5λ0、0.05λ0-0.5λ0, opposite with bore face
The length and width in face are respectively 0.5 λ0-1.5λ0、0.05λ0-0.45λ0, depth is 0.1 λ0-0.5λ0；
The length and width that rectangle carries on the back chamber are respectively 0.5 λ0-1.5λ0、0.05λ0-0.45λ0, depth is 0.1 λ0-0.5λ0, slit width
Degree is 0.01 λ0-0.1λ0；Wherein λ0For the corresponding free space wavelength in center of antenna resonance frequency place.
The wire length of the gradual change form sheet metal is 0.1 λ0-0.5λ0, line width is 0.05 λ0-0.15λ0；Rectangular metal sheet
Length is 0.4 λ0-0.8λ0, width is 0.01 λ0-0.1λ0, wherein λ0It is corresponding freely empty for the center of antenna resonance frequency place
Between wavelength.
Beneficial effects of the present invention:
(1) present invention is made of two radiating elements, and horizontal radiation unit is rectangular horn, is open to be formed by bore face
Omnidirectional radiation；Vertical radiation unit is cracked by level realizes omnidirectional radiation, and antenna structure is simple, manufacture easy to process.
(2) the horizontal radiation unit of antenna is fed using the sheet metal of gradual change form, and vertical radiation unit is using rectangle gold
Belonging to piece feed, feed structure is simple, and it is easy to process, and wider return loss bandwidth may be implemented, in working frequency
10dB return loss is up to 45.5%.
(3) radiative unit structure of antenna is simple, and wideband covering may be implemented, may be implemented on working frequency range good
Omnidirectional's performance, cross polarization is small, and the cross polarization on entire working frequency range is below -35dB.
(4) isolation of antenna is preferable, and the polarization isolation on working frequency range is below -70dB.
Detailed description of the invention
Fig. 1 is the perspective view of the wideband dual polarized omnidirectional antenna of superelevation isolation of the present invention.
Fig. 2 is the top view of the wideband dual polarized omnidirectional antenna of superelevation isolation of the present invention.
Fig. 3 is the bandwidth figure of the wideband dual polarized omnidirectional antenna of superelevation isolation of the present invention.
Fig. 4 is the antenna pattern of XOY plane of the rectangle back chamber at 1.7GHz in inventive antenna radiating element.
Fig. 5 is the antenna pattern of XOY plane of the rectangle back chamber at 2.2GHz in inventive antenna radiating element.
Fig. 6 is the antenna pattern of XOY plane of the rectangle back chamber at 2.7GHz in inventive antenna radiating element.
Fig. 7 is the antenna pattern of XOY plane of the rectangular horn at 1.7GHz in inventive antenna radiating element.
Fig. 8 is the antenna pattern of XOY plane of the rectangular horn at 2.2GHz in inventive antenna radiating element.
Fig. 9 is the antenna pattern of XOY plane of the rectangular horn at 2.7GHz in inventive antenna radiating element.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As shown in Figure 1 and Figure 2, a kind of wideband dual polarized omnidirectional antenna of superelevation isolation, including antenna radiation unit R, level
Feed element Fh and vertical feed element Fv, the horizontal feed element and vertical feed element respectively with 50 ohm coaxial line C
It is connected.
The antennas orthogonal is placed, and rectangular horn and rectangle the back chamber that radiating element is open by a bore face are constituted,
The rectangular horn and rectangle back chamber share a vertical plane, and the plate of the antenna radiation unit is copper sheet, with a thickness of
0.2mm.The horizontal feed element is located in rectangular horn, and is located at the middle position of rectangular horn vertical direction, described to hang down
Straight feed element is located at rectangle and carries on the back intracavitary, and the plate of two feed elements is copper sheet, and thickness is 0.2mm.
In the present embodiment, rectangular horn realizes horizontal polarization, the long H=0.73 λ in bore face0, wide W1=0.25 λ0, rectangle
The depth L1=0.37 λ of loudspeaker0.Horizontal feed element Fh be a gradual change form sheet metal, gradual change form can for ellipse,
It is round or parabola shaped.In the present embodiment use elliptical form gradual change, place transverse be 58mm, short axle 22mm, gradually
Deformation type sheet metal width is 0.18 λ0.Gradual change form sheet metal is opened a way in one end close to bore face, and the other end is apart from antenna
The public face 2mm of radiating element, and its midpoint is connected with 50 ohm coaxial line C.
Rectangle back chamber is in the present embodiment for realizing vertical polarization, and rectangle carries on the back chamber in addition to shared vertical plane, in other three faces
Between position be provided with gap, rectangle carries on the back the long H=0.73 λ of chamber0, wide W2=0.16 λ0, depth L2=0.29 λ0, intermediate opened slit width
Spend h=0.05 λ0.Vertical feed element Fv is a rectangular metal sheet, and length and width are respectively 0.61 λ0With 0.03 λ0.The rectangle gold
Belong to piece vertical level to place, and both ends are opened a way, apart from 0.05 λ of rectangular metal sheet top0Place is connected with 50 ohm coaxial lines
It connects.The horizontal feed element and vertical feed element are not connected other than being connected with coaxial line with other objects, wherein
λ0For the corresponding free space wavelength in center of antenna resonance frequency place.
As shown in figure 3, be the present embodiment emulation gained beamwidth of antenna, thus figure it could be assumed that, superelevation of the present invention isolation
The bandwidth that wideband dual polarized omnidirectional antenna has 1.7GHz-2.7GHz is spent, return loss reaches -10dB, opposite band in the bandwidth
It is wide to have reached 45.5%, meet the requirement of broad-band antenna；And in the bandwidth, polarization isolation is in 70dB or more, isolation
It is higher.Fig. 4-Fig. 9 is XOY plane antenna pattern of the present embodiment emulation gained antenna at different frequency, it can be obtained from the figure that going out
The conclusion wideband dual polarized omnidirectional antenna of superelevation isolation of the present invention has preferable horizontal omnidirectional radiation characteristic.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation, which is characterized in that single including antenna radiation unit, horizontal feed
First and vertical feed element, rectangular horn and rectangle the back chamber that the antenna radiation unit is open by a bore face are constituted, institute
It states rectangular horn and rectangle back chamber shares a vertical plane, the horizontal feed element is located in rectangular horn, the vertical feedback
It is intracavitary that electric unit is located at rectangle back；
The rectangular horn is horizontal radiation unit, is fed using horizontal feed element, and the horizontal feed element is gradual change shape
Formula sheet metal；
The rectangle back chamber is vertical radiation unit, and the vertical radiation unit is cracked by level realizes omnidirectional radiation, uses
Vertical feed element feed, the vertical feed element are rectangular metal sheet.
2. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 1, which is characterized in that the gradual change
Form sheet metal, specially oval gradual change, round gradual change or parabolic grades.
3. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 2, which is characterized in that the gradual change
Form sheet metal is opened a way close to bore face one end, and other end midpoint is connected with 50 ohm coaxial lines.
4. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 1, which is characterized in that the rectangle
Sheet metal is vertically arranged in the opposite side that vertical plane is shared close to rectangle back chamber.
5. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 4, which is characterized in that the rectangle
Sheet metal both ends open circuit, apart from 0.01 λ of rectangular metal sheet top0-0.1λ0Place is connected with 50 ohm coaxial lines.
6. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 1, which is characterized in that the rectangle
Back three face of chamber is provided with gap, and three face is the opposite and left and right side for sharing vertical plane.
7. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 6, which is characterized in that the rectangle
The bore face length and width of loudspeaker are respectively 0.5 λ0-1.5λ0、0.05λ0-0.5λ0, the length and width in the face opposite with bore face are respectively 0.5
λ0-1.5λ0、0.05λ0-0.45λ0, depth is 0.1 λ0-0.5λ0；
The length and width that rectangle carries on the back chamber are respectively 0.5 λ0-1.5λ0、0.05λ0-0.45λ0, depth is 0.1 λ0-0.5λ0, gap width is
0.01λ0-0.1λ0；Wherein λ0For the corresponding free space wavelength in center of antenna resonance frequency place.
8. a kind of wideband dual polarized omnidirectional antenna of superelevation isolation according to claim 2, which is characterized in that the gradual change
The wire length of form sheet metal is 0.1 λ0-0.5λ0, line width is 0.05 λ0-0.15λ0；The length of rectangular metal sheet is 0.4 λ0-0.8
λ0, width is 0.01 λ0-0.1λ0, wherein λ0For the corresponding free space wavelength in center of antenna resonance frequency place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925221.4A CN105449346B (en) | 2015-12-11 | 2015-12-11 | A kind of wideband dual polarized omnidirectional antenna of superelevation isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925221.4A CN105449346B (en) | 2015-12-11 | 2015-12-11 | A kind of wideband dual polarized omnidirectional antenna of superelevation isolation |
Publications (2)
| Publication Number | Publication Date |
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| CN105449346A CN105449346A (en) | 2016-03-30 |
| CN105449346B true CN105449346B (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510925221.4A Expired - Fee Related CN105449346B (en) | 2015-12-11 | 2015-12-11 | A kind of wideband dual polarized omnidirectional antenna of superelevation isolation |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470976B (en) * | 2018-04-11 | 2019-10-11 | 西安交通大学 | A kind of W-waveband microfilter antenna based on rectangular coaxial cable architecture |
| CN108448242B (en) * | 2018-04-12 | 2023-08-22 | 华南理工大学 | High-isolation three-frequency dual-polarized omnidirectional antenna |
| CN108448253B (en) * | 2018-04-12 | 2023-07-18 | 华南理工大学 | High-isolation dual-frequency dual-polarization omnidirectional antenna |
| CN110112547B (en) * | 2019-05-05 | 2024-01-09 | 华南理工大学 | 5G high-isolation broadband dual-polarized omnidirectional antenna |
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|---|---|---|---|---|
| KR20060096880A (en) * | 2005-03-04 | 2006-09-13 | 주식회사 백금정보통신 | Horn antenna having inserted partial conductor plate on h plane for radar detector |
| CN102117973A (en) * | 2010-12-30 | 2011-07-06 | 摩比天线技术（深圳）有限公司 | Dual-polarized indoor distributed antenna |
| CN104538746A (en) * | 2014-12-29 | 2015-04-22 | 广东曼克维通信科技有限公司 | Integrated dual-polarization ceiling antenna |
| CN104916913A (en) * | 2015-06-11 | 2015-09-16 | 华南理工大学 | Blade three-frequency horizontally-polarized omnidirectional antenna |
| CN205376747U (en) * | 2015-12-11 | 2016-07-06 | 华南理工大学 | Super high isolation broadband double polarization omnidirectional antenna |
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2015
- 2015-12-11 CN CN201510925221.4A patent/CN105449346B/en not_active Expired - Fee Related
Patent Citations (5)
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|---|---|---|---|---|
| KR20060096880A (en) * | 2005-03-04 | 2006-09-13 | 주식회사 백금정보통신 | Horn antenna having inserted partial conductor plate on h plane for radar detector |
| CN102117973A (en) * | 2010-12-30 | 2011-07-06 | 摩比天线技术（深圳）有限公司 | Dual-polarized indoor distributed antenna |
| CN104538746A (en) * | 2014-12-29 | 2015-04-22 | 广东曼克维通信科技有限公司 | Integrated dual-polarization ceiling antenna |
| CN104916913A (en) * | 2015-06-11 | 2015-09-16 | 华南理工大学 | Blade three-frequency horizontally-polarized omnidirectional antenna |
| CN205376747U (en) * | 2015-12-11 | 2016-07-06 | 华南理工大学 | Super high isolation broadband double polarization omnidirectional antenna |
Non-Patent Citations (1)
| Title |
|---|
| Compact Azimuthal Omnidirectional Dual-Polarized Antenna Using Highly Isolated Colocated Slots;Yue Li，Zhijun Zhang,JianfengZheng，Zhenghe Feng;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20120930;第60卷(第9期);第4037-4045页 |
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