CN105932406A - Magnetic coupling feeding based circularly polarized antenna - Google Patents
Magnetic coupling feeding based circularly polarized antenna Download PDFInfo
- Publication number
- CN105932406A CN105932406A CN201610479320.9A CN201610479320A CN105932406A CN 105932406 A CN105932406 A CN 105932406A CN 201610479320 A CN201610479320 A CN 201610479320A CN 105932406 A CN105932406 A CN 105932406A
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- CN
- China
- Prior art keywords
- magnetic coupling
- circular
- antenna
- looper
- sheet metal
- Prior art date
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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
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- 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
Abstract
The invention discloses a magnetic coupling feeding based circularly polarized antenna. The circularly polarized antenna comprises an antenna shell, a feeding part and a polarized metal sheet, wherein the feeding part is arranged at the feeding end of the antenna shell; the polarized metal sheet is arranged at the radiating end of the antenna shell; a rectangular waveguide cavity and a circular waveguide cavity are formed in the radiating end of the antenna shell; the polarized metal sheet is arranged on the axial line of the circular waveguide cavity; a signal fed by a signal feeding probe of the feeding part is transmitted to the rectangular waveguide cavity through a magnetic coupling curved needle for converting a TEM mode into a TE10 mode of the rectangular waveguide; then the signal passes through the circular waveguide cavity for converting the TE10 mode into a TE11 mode; and finally, the TE11 mode is subjected to polarization adjustment by the polarized metal sheet to radiate circularly polarized electromagnetic wave. Therefore, the feeding point can be set on the geometric axial line of the antenna; and meanwhile, the antenna has a relatively small size and relatively high circularly polarized performance.
Description
Technical field
The present invention relates to antenna technical field, particularly to a kind of circular polarized antenna based on magnetic coupling feed.
Background technology
Circular polarized antenna is low to the polarization sensitive degree of echo signal because of it, is widely used in various communication products
In, the most conventional circular polarized antenna includes that helical antenna, micro-strip double-feed antenna, micro-strip list present antenna, coupling
Close antenna etc., but for the circular polarized antenna array in broadband, the large scale of helical antenna, micro-strip list are presented
The narrow-band characteristic of/double-fed is more difficult obtains favor, therefore considers, and couple feed is the most broadband circle polarized
The preferably selection scheme of array antenna, this kind of antenna major part is to feed based on field coupling, field coupling
Feed feature be distributing point not on the geometrical axis of antenna, phase center and the distributing point of antenna can be caused
Between have a certain distance, thus additionally increase the size of antenna.
Summary of the invention
It is an object of the invention to: realize being arranged on the geometrical axis of antenna distributing point, make antenna simultaneously
There is less size and preferably circular polarisation performance.
In order to realize foregoing invention purpose, the present invention provides a kind of circular polarized antenna based on magnetic coupling feed,
Its technical scheme is:
A kind of circular polarized antenna based on magnetic coupling feed, it includes antenna housing, feeding pack and polarization gold
Belonging to sheet, described feeding pack is arranged in the feed side of described antenna housing, and described polarization sheet metal is arranged on
In the spoke side of described antenna housing；Wherein,
The spoke side of described antenna housing includes square wave guide cavity and circular waveguide chamber, described polarization sheet metal position
On the axis in described circular waveguide chamber；
Described feeding pack includes signal feed-in probe, RF isolation and magnetic coupling looper, wherein, described
The rectangular shape of magnetic coupling looper, described magnetic coupling looper one end insert described RF isolation, and with insert institute
The described signal feed-in probe stating RF isolation is conductively connected, its other end and the length of described square wave guide cavity
While be vertically arranged, and it is conductively connected mutually with described antenna housing；
Signal is transferred to described square wave guide cavity by described magnetic coupling looper, and TEM mould is converted to rectangle
The TE of waveguide10Mould, then through described circular waveguide chamber, by TE10Mould is converted to TE11Mould, finally described
Polarization sheet metal is to TE11Mould carries out polarization modulation, gives off circular polarisation electromagnetic wave.
According to a kind of specific embodiment, in RF isolation, magnetic coupling looper and signal feed-in probe
It is coaxially disposed.
According to a kind of specific embodiment, described antenna housing is provided with looper welding hole, and passes through institute
State looper welding hole, described magnetic coupling looper is welded together with described antenna housing.
According to a kind of specific embodiment, in described square wave guide cavity, it is filled with Rectangular Enclosure with Participating Media block, described circle
Circular media block it is filled with in shape waveguide cavity, wherein,
Described Rectangular Enclosure with Participating Media block has the mouth of dodging for dodging described magnetic coupling looper, described polarization sheet metal
It is arranged on the axis of described circular media block.
According to a kind of specific embodiment, the corner of described square wave guide cavity, after chamfered, forms circle
Arc limit.
According to a kind of specific embodiment, the feed side of described antenna housing has a locating surface, is used for
During installation, it is thus achieved that contraposition angle accurately.
According to a kind of specific embodiment, described polarization sheet metal rotates along the axis in described circular waveguide chamber
90 ° so that it is the circular polarisation electromagnetic wave given off switches between left-hand circular polarization ripple and right-handed circular polarization ripple.
Compared with prior art, beneficial effects of the present invention: the circular polarisation sky that the present invention feeds based on magnetic coupling
Line, wherein, feeding pack is arranged in the feed side of antenna housing, and polarization sheet metal is arranged on antenna housing
Spoke side in, the spoke side of antenna housing has square wave guide cavity and circular waveguide chamber, and the metal that will polarize
Sheet is arranged on the axis in circular waveguide chamber, and the signal of the signal feed-in probe feed-in of feeding pack passes through magnetic coupling
Close looper and be transferred to square wave guide cavity, TEM mould is converted to the TE of rectangular waveguide10Mould, then through circle
Waveguide cavity, by TE10Mould is converted to TE11Mould, finally polarization sheet metal is to TE11Mould carries out polarization modulation,
Give off circular polarisation electromagnetic wave.Therefore, the present invention realizes being arranged on the geometrical axis of antenna distributing point,
Make antenna have less size and preferably circular polarisation performance simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of inventive antenna spoke side；
Fig. 2 is the structural representation of inventive antenna feed side；
Fig. 3 is the structural representation of inventive antenna feeding pack；
Fig. 4 is the structural representation of inventive antenna housing；
Fig. 5 is Rectangular Enclosure with Participating Media block of the present invention and the structural representation of circular media block；
Fig. 6 is the feeding pack of the present invention transition schematic diagram to square wave guide cavity；
Fig. 7 is the square wave guide cavity of the present invention transition schematic diagram in field to circular waveguide chamber；
Fig. 8 is that the present invention polarizes the field component schematic diagram of sheet metal.
Reference numerals list
2-spoke side 21-circular waveguide chamber, 1-feed side 22-square wave guide cavity
21a-circular media block 22a-Rectangular Enclosure with Participating Media block 3-polarizes sheet metal 4-looper welding hole
5-feeding pack 51-magnetic coupling looper 52-RF isolation 53-signal feed-in probe
6-locating surface
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.But this should be interpreted as
The scope of the above-mentioned theme of the present invention is only limitted to below example, all technology realized based on present invention
Belong to the scope of the present invention.
The spoke side of inventive antenna that is respectively shown in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, feed side,
Feeding pack and the structural representation of antenna housing；Wherein, the circular polarisation sky that the present invention feeds based on magnetic coupling
Line, it include antenna housing, feeding pack 5 and polarization sheet metal 3, feeding pack 5 is arranged on antenna case
In the feed side 1 of body, polarization sheet metal 3 is arranged in the spoke side 2 of antenna housing.
Wherein, the spoke side 2 of antenna housing has square wave guide cavity 22 and circular waveguide chamber 21, polarization gold
Belong to sheet 3 to be positioned on the axis in circular waveguide chamber 21.
Feeding pack 5 includes signal feed-in probe 53, RF isolation 52 and magnetic coupling looper 51, wherein,
The rectangular shape of magnetic coupling looper 51, magnetic coupling looper 51 one end is inserted RF isolation 52, and is penetrated with insertion
Frequently the signal feed-in probe 53 of insulator 52 is conductively connected, its other end and the long limit of square wave guide cavity 22
It is vertically arranged, and is conductively connected mutually with antenna housing.Concrete, in RF isolation 52, magnetic coupling
Looper 51 is coaxially disposed with signal feed-in probe 53.
In the present invention, signal is by signal feed-in probe 53 feed-in, and the signal of feed-in is curved by magnetic coupling
Pin 51 is transferred to square wave guide cavity 22, and TEM mould is converted to the TE of rectangular waveguide10Mould, then through circle
Shape waveguide cavity 21, by TE10Mould is converted to TE11Mould, finally polarization sheet metal 3 is to TE11Mould polarizes
Adjust, give off circular polarisation electromagnetic wave.
Concrete, the antenna housing of the present invention is provided with looper welding hole 4, and by looper welding hole 4,
Magnetic coupling looper 51 is welded together with antenna housing.
When implementing, the corner of the square wave guide cavity 22 of antenna housing, after chamfered, forms arc-shaped edges.
So process does not only interfere with the performance of antenna, improves the machinability of antenna simultaneously.Additionally, antenna
The feed side 1 of housing has a locating surface 6, and this locating surface is for when mounted, it is thus achieved that accurately to parallactic angle
Degree, it is achieved with being accurately positioned of rear module.
In conjunction with the Rectangular Enclosure with Participating Media block of the present invention shown in Fig. 5 and the structural representation of circular media block；Wherein, square
It is filled with Rectangular Enclosure with Participating Media block 22a in shape waveguide cavity 22, in circular waveguide chamber 21, is filled with circular media block 21a.
Wherein, Rectangular Enclosure with Participating Media block 22a has and dodges mouth for dodge magnetic coupling looper 51.Polarization sheet metal 3
It is arranged on the axis of circular media block 21a.
Concrete, the polarization sheet metal in the present invention can be embedded into circular Jie by the way of machining
In mass, it is also possible to by circular media block being carried out corrosion shaping, the most again polarization sheet metal is embedded again
In this circular media block.
Transition schematic diagram in conjunction with the feeding pack of the present invention shown in Fig. 6 to square wave guide cavity；Wherein, feed
After the signal feed-in probe FD feed of parts, through its coaxial feed with magnetic coupling looper, and pass through magnetic
TEM ripple, to the transition of rectangular waveguide, is converted into the TE of rectangular waveguide by couple feed10Ripple, and rectangle
The direction of an electric field of waveguide is distributed along the narrow limit of rectangular waveguide.
Fig. 7 is the square wave guide cavity of the present invention transition schematic diagram in field to circular waveguide chamber；Wherein, E1 is square
Shape waveguide TE10The Electric Field Distribution schematic diagram of mould, E2 is circular waveguide TE11The Electric Field Distribution schematic diagram of mould, can
To find out, the field of both patterns is closer to, and is easier coupling.
Fig. 8 is that the present invention polarizes the field component schematic diagram of sheet metal；Wherein, by polarization sheet metal, E quilt
It is decomposed into polarization regulation length of a film limit Ea field component and minor face Eb component, this two group components orthogonal space.According to
Polarization of electromagnetic field principle, circular polarisation to be realized, need meet three conditions:
(1) two field component orthogonal space
(2) two field component amplitudes are equal
(3) two field component phase 90 °
Meanwhile, when looking over from the direction of propagation of ripple, if the change that wave vector direction is over time presents a left side
Hand screw rule, then for left-hand circular polarization ripple, if meeting right-hand screw rule, then for right-handed circular polarization ripple.
In the present invention, polarization sheet metal rotates along the axis in circular waveguide chamber so that it is the circular polarisation given off
Electromagnetic wave switches between left-hand circular polarization ripple and right-handed circular polarization ripple.
Above in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail, but the present invention has not limited
It is formed on above-mentioned embodiment, in the case of without departing from the spirit and scope of claims hereof, this area
Technical staff may be made that various amendment or remodeling.
Claims (7)
1. a circular polarized antenna based on magnetic coupling feed, it is characterised in that include antenna housing, feedback
Electricity parts and polarization sheet metal, described feeding pack is arranged in the feed side of described antenna housing, described pole
Change sheet metal to be arranged in the spoke side of described antenna housing；Wherein,
The spoke side of described antenna housing includes square wave guide cavity and circular waveguide chamber, described polarization sheet metal position
On the axis in described circular waveguide chamber；
Described feeding pack includes signal feed-in probe, RF isolation and magnetic coupling looper, wherein, described
The rectangular shape of magnetic coupling looper, described magnetic coupling looper one end insert described RF isolation, and with insert institute
The described signal feed-in probe stating RF isolation is conductively connected, its other end and the length of described square wave guide cavity
While be vertically arranged, and it is conductively connected mutually with described antenna housing；
Signal is transferred to described square wave guide cavity by described magnetic coupling looper, and TEM mould is converted to rectangle
The TE of waveguide10Mould, then through described circular waveguide chamber, by TE10Mould is converted to TE11Mould, finally described
Polarization sheet metal is to TE11Mould carries out polarization modulation, gives off circular polarisation electromagnetic wave.
2. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that
In RF isolation, magnetic coupling looper is coaxially disposed with signal feed-in probe.
3. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that institute
State antenna housing and be provided with looper welding hole, and by described looper welding hole, by described magnetic coupling looper
Weld together with described antenna housing.
4. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that institute
It is filled with Rectangular Enclosure with Participating Media block in stating square wave guide cavity, in described circular waveguide chamber, is filled with circular media block, its
In,
Described Rectangular Enclosure with Participating Media block has the mouth of dodging for dodging described magnetic coupling looper, described polarization sheet metal
It is arranged on the axis of described circular media block.
5. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that institute
State the corner of square wave guide cavity after chamfered, form arc-shaped edges.
6. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that institute
The feed side stating antenna housing has a locating surface, for when mounted, it is thus achieved that contraposition angle accurately.
7. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that institute
State the polarization sheet metal axis half-twist along described circular waveguide chamber so that it is the circular polarisation electromagnetic wave given off
Switch between left-hand circular polarization ripple and right-handed circular polarization ripple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479320.9A CN105932406A (en) | 2016-06-24 | 2016-06-24 | Magnetic coupling feeding based circularly polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479320.9A CN105932406A (en) | 2016-06-24 | 2016-06-24 | Magnetic coupling feeding based circularly polarized antenna |
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| Publication Number | Publication Date |
|---|---|
| CN105932406A true CN105932406A (en) | 2016-09-07 |
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ID=56829984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479320.9A Pending CN105932406A (en) | 2016-06-24 | 2016-06-24 | Magnetic coupling feeding based circularly polarized antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785435A (en) * | 2017-02-08 | 2017-05-31 | 成都雷电微力科技有限公司 | A kind of T/R module vertical interconnecting structure part |
| CN108232460A (en) * | 2017-11-29 | 2018-06-29 | 安徽四创电子股份有限公司 | A kind of small-bore conical horn of the changes such as wave beam |
| CN109830801A (en) * | 2019-03-29 | 2019-05-31 | 中国电子科技集团公司第二十九研究所 | A kind of antenna integrated unit of efficient circular polarisation and its working method |
| CN111755830A (en) * | 2020-07-02 | 2020-10-09 | 北京无线电测量研究所 | Horn antenna for realizing multiple polarization |
| CN112701472A (en) * | 2020-12-15 | 2021-04-23 | 中国电子科技集团公司第三十八研究所 | Feed transmission structure for coupling of antenna feed system |
| CN108232460B (en) * | 2017-11-29 | 2024-04-12 | 安徽四创电子股份有限公司 | Small-caliber conical horn with equal wave beam |
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|---|---|---|---|---|
| US20140375502A1 (en) * | 2013-06-25 | 2014-12-25 | Futurewei Technologies, Inc. | Mixed Structure Dual-Band Dual-Beam Three-Column Phased Array Antenna |
| CN105633542A (en) * | 2014-11-06 | 2016-06-01 | 航天恒星科技有限公司 | Broadband open-ended waveguide antenna |
| CN205790354U (en) * | 2016-06-24 | 2016-12-07 | 成都雷电微力科技有限公司 | A kind of circular polarized antenna based on magnetic coupling feed |
-
2016
- 2016-06-24 CN CN201610479320.9A patent/CN105932406A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140375502A1 (en) * | 2013-06-25 | 2014-12-25 | Futurewei Technologies, Inc. | Mixed Structure Dual-Band Dual-Beam Three-Column Phased Array Antenna |
| CN105633542A (en) * | 2014-11-06 | 2016-06-01 | 航天恒星科技有限公司 | Broadband open-ended waveguide antenna |
| CN205790354U (en) * | 2016-06-24 | 2016-12-07 | 成都雷电微力科技有限公司 | A kind of circular polarized antenna based on magnetic coupling feed |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785435A (en) * | 2017-02-08 | 2017-05-31 | 成都雷电微力科技有限公司 | A kind of T/R module vertical interconnecting structure part |
| CN106785435B (en) * | 2017-02-08 | 2023-06-16 | 成都雷电微力科技股份有限公司 | TR module vertical interconnection structure |
| CN108232460A (en) * | 2017-11-29 | 2018-06-29 | 安徽四创电子股份有限公司 | A kind of small-bore conical horn of the changes such as wave beam |
| CN108232460B (en) * | 2017-11-29 | 2024-04-12 | 安徽四创电子股份有限公司 | Small-caliber conical horn with equal wave beam |
| CN109830801A (en) * | 2019-03-29 | 2019-05-31 | 中国电子科技集团公司第二十九研究所 | A kind of antenna integrated unit of efficient circular polarisation and its working method |
| CN111755830A (en) * | 2020-07-02 | 2020-10-09 | 北京无线电测量研究所 | Horn antenna for realizing multiple polarization |
| CN111755830B (en) * | 2020-07-02 | 2022-08-02 | 北京无线电测量研究所 | Horn antenna for realizing multiple polarization |
| CN112701472A (en) * | 2020-12-15 | 2021-04-23 | 中国电子科技集团公司第三十八研究所 | Feed transmission structure for coupling of antenna feed system |
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Application publication date: 20160907 |