CN205790354U - A kind of circular polarized antenna based on magnetic coupling feed - Google Patents
A kind of circular polarized antenna based on magnetic coupling feed Download PDFInfo
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- CN205790354U CN205790354U CN201620648547.7U CN201620648547U CN205790354U CN 205790354 U CN205790354 U CN 205790354U CN 201620648547 U CN201620648547 U CN 201620648547U CN 205790354 U CN205790354 U CN 205790354U
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- magnetic coupling
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- looper
- antenna
- mould
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Abstract
The utility model discloses a kind of circular polarized antenna based on magnetic coupling feed, it includes antenna housing, feeding pack and polarization sheet metal, and, feeding pack is arranged in the feed side of antenna housing, polarization sheet metal is arranged in the spoke side of antenna housing, the spoke side of antenna housing has square wave guide cavity and circular waveguide chamber, and polarization sheet metal is arranged on the axis in circular waveguide chamber, the signal of the signal feed-in probe feed-in of feeding pack is transferred to square wave guide cavity by magnetic coupling looper, and TEM mould is converted to the TE of rectangular waveguide10Mould, then through circular waveguide chamber, by TE10Mould is converted to TE11Mould, finally polarization sheet metal is to TE11Mould carries out polarization modulation, gives off circular polarisation electromagnetic wave.Therefore, this utility model realizes being arranged on the geometrical axis of antenna distributing point, makes antenna have less size and preferably circular polarisation performance simultaneously.
Description
Technical field
This utility model 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, mesh
Front conventional circular polarized antenna includes that helical antenna, micro-strip double-feed antenna, micro-strip list present antenna, coupled antenna etc., but for width
For the circular polarized antenna array of band, the large scale of helical antenna, the more difficult acquisition of narrow-band characteristic of micro-strip list feedback/double-fed are favored,
Therefore considering, couple feed is the preferably selection scheme of current broadband circle polarized array antenna, this kind of antenna major part
Be based on field coupling feed, field coupling feed feature be distributing point not on the geometrical axis of antenna, antenna can be caused
Phase center and distributing point between have a certain distance, thus additionally increase the size of antenna.
Utility model content
The purpose of this utility model is: realizes being arranged on the geometrical axis of antenna distributing point, makes antenna have simultaneously
There are less size and preferably circular polarisation performance.
In order to realize above-mentioned utility model purpose, this utility model provides a kind of circular polarisation sky based on magnetic coupling feed
Line, its technical scheme is:
A kind of circular polarized antenna based on magnetic coupling feed, it includes antenna housing, feeding pack and polarization sheet metal, institute
Stating in the feed side that feeding pack is arranged on described antenna housing, described polarization sheet metal is arranged on the spoke of described antenna housing
Penetrate in end；Wherein,
It is described that the spoke side of described antenna housing includes that square wave guide cavity and circular waveguide chamber, described polarization sheet metal are positioned at
On the axis in circular waveguide chamber；
Described feeding pack includes signal feed-in probe, RF isolation and magnetic coupling looper, and wherein, described magnetic coupling is curved
The rectangular shape of pin, described magnetic coupling looper one end insert described RF isolation, and with insert described RF isolation described in
Signal feed-in probe is conductively connected, and its other end is vertically arranged with the long limit of described square wave guide cavity, and with described antenna housing
It is conductively connected mutually；
Signal is transferred to described square wave guide cavity by described magnetic coupling looper, and TEM mould is converted to the TE of rectangular waveguide10
Mould, then through described circular waveguide chamber, by TE10Mould is converted to TE11Mould, last described polarization sheet metal is to TE11Mould polarizes
Adjust, give off circular polarisation electromagnetic wave.
According to a kind of specific embodiment, in RF isolation, magnetic coupling looper coaxially sets with signal feed-in probe
Put.
According to a kind of specific embodiment, described antenna housing is provided with looper welding hole, and by described looper
Welding hole, welds together described magnetic coupling looper with described antenna housing.
According to a kind of specific embodiment, described rectangular waveguide intracavity is filled with Rectangular Enclosure with Participating Media block, described circular waveguide
Intracavity is filled with circular media block, wherein,
Described Rectangular Enclosure with Participating Media block has the mouth of dodging for dodging described magnetic coupling looper, and described polarization sheet metal is arranged on
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 arc-shaped edges.
According to a kind of specific embodiment, the feed side of described antenna housing has a locating surface, for when mounted,
Obtain para-position angle accurately.
According to a kind of specific embodiment, described polarization sheet metal along the axis 90-degree rotation in described circular waveguide chamber,
Its circular polarisation electromagnetic wave given off is made to switch between left-hand circular polarization ripple and right-handed circular polarization ripple.
Compared with prior art, the beneficial effects of the utility model: the circular polarisation that this utility model feeds based on magnetic coupling
Antenna, wherein, feeding pack is arranged in the feed side of antenna housing, and polarization sheet metal is arranged on the spoke side of antenna housing
In, the spoke side of antenna housing has square wave guide cavity and circular waveguide chamber, and polarization sheet metal is arranged on circular waveguide chamber
Axis on, the signal of the signal feed-in probe feed-in of feeding pack is transferred to square wave guide cavity by magnetic coupling looper, by TEM
Mould is converted to the TE of rectangular waveguide10Mould, then through circular waveguide chamber, by TE10Mould is converted to TE11Mould, finally polarization sheet metal pair
TE11Mould carries out polarization modulation, gives off circular polarisation electromagnetic wave.Therefore, this utility model realizes distributing point is arranged on antenna
On geometrical axis, make antenna have less size and preferably circular polarisation performance simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of this utility model aerial radiation end；
Fig. 2 is the structural representation of this utility model antenna feed side；
Fig. 3 is the structural representation of this utility model antenna feed block；
Fig. 4 is the structural representation of this utility model antenna housing；
Fig. 5 is this utility model Rectangular Enclosure with Participating Media block and the structural representation of circular media block；
Fig. 6 is this utility model feeding pack transition schematic diagram to square wave guide cavity；
Fig. 7 is this utility model square wave guide cavity transition schematic diagram in field to circular waveguide chamber；
Fig. 8 is the field component schematic diagram of this utility model polarization 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, this utility model is described in further detail.But this should be interpreted as this
The scope of the above-mentioned theme of utility model is only limitted to below example, and all technology realized based on this utility model content all belong to
In scope of the present utility model.
The spoke side of this utility model antenna that is respectively shown in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, feed side, feeding pack
Structural representation with antenna housing；Wherein, the circular polarized antenna that this utility model feeds based on magnetic coupling, it includes antenna case
Body, feeding pack 5 and polarization sheet metal 3, feeding pack 5 is arranged in the feed side 1 of antenna housing, and 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, and polarization sheet metal 3 is positioned at
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, and wherein, magnetic coupling is curved
The rectangular shape of pin 51, magnetic coupling looper 51 one end insert RF isolation 52, and with insert RF isolation 52 signal feed-in
Probe 53 is conductively connected, and its other end is vertically arranged with the long limit of square wave guide cavity 22, and is conductively connected mutually with antenna housing.Tool
Body, in RF isolation 52, magnetic coupling looper 51 is coaxially disposed with signal feed-in probe 53.
In this utility model, signal is by signal feed-in probe 53 feed-in, and the signal of feed-in is by magnetic coupling looper 51
It is transferred to square wave guide cavity 22, TEM mould is converted to the TE of rectangular waveguide10Mould, then through circular waveguide chamber 21, by TE10Mould turns
It is changed to TE11Mould, finally polarization sheet metal 3 is to TE11Mould carries out polarization modulation, gives off circular polarisation electromagnetic wave.
Concrete, antenna housing of the present utility model is provided with looper welding hole 4, and by looper welding hole 4, by magnetic
Coupling looper 51 welds 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
Not only do not interfere with the performance of antenna, improve the machinability of antenna simultaneously.Additionally, the feed side 1 of antenna housing has one
Locating surface 6, this locating surface is for when mounted, it is thus achieved that para-position angle accurately, it is achieved with being accurately positioned of rear module.
In conjunction with this utility model Rectangular Enclosure with Participating Media block shown in Fig. 5 and the structural representation of circular media block；Wherein, square wave
It is filled with Rectangular Enclosure with Participating Media block 22a in guide 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 is arranged on the axis of circular media block 21a.
Concrete, the polarization sheet metal in this utility model can be embedded into circular media by the way of machining
In block, it is also possible to by circular media block being carried out corrosion molding, polarization sheet metal is embedded again this circular media block the most again
In.
Transition schematic diagram in conjunction with this utility model feeding pack shown in Fig. 6 to square wave guide cavity；Wherein, feeding pack
Signal feed-in probe FD feed after, through its coaxial feed with magnetic coupling looper, and feed rectangle by magnetic coupling
The transition of waveguide, is converted into the TE of rectangular waveguide by TEM ripple10Ripple, and narrow along rectangular waveguide of the direction of an electric field of rectangular waveguide
Limit is distributed.
Fig. 7 is this utility model square wave guide cavity transition schematic diagram in field to circular waveguide chamber；Wherein, E1 is rectangular waveguide
TE10The Electric Field Distribution schematic diagram of mould, E2 is circular waveguide TE11The Electric Field Distribution schematic diagram of mould, it can be seen that both patterns
Field is closer to, and is easier coupling.
Fig. 8 is the field component schematic diagram of this utility model polarization sheet metal；Wherein, by polarization sheet metal, E is broken down 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, real
Existing circular polarisation, needs to meet three conditions:
(1) two field component orthogonal space
(2) two field component amplitudes are equal
(3) two field component phase 90 degree
Meanwhile, when looking over from the direction of propagation of ripple, if the change that wave vector direction is over time presents left hand helix
Rule, then for left-hand circular polarization ripple, if meeting right-hand screw rule, then for right-handed circular polarization ripple.
In this utility model, polarization sheet metal rotates along the axis in circular waveguide chamber so that it is the circular polarisation electromagnetism given off
Ripple switches between left-hand circular polarization ripple and right-handed circular polarization ripple.
Above in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail, but this utility model is not
It is limited to above-mentioned embodiment, in the case of without departing from the spirit and scope of claims hereof, those skilled in the art
Member 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, 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 described antenna case
In the spoke side of body；Wherein,
The spoke side of described antenna housing includes that square wave guide cavity and circular waveguide chamber, described polarization sheet metal are positioned at described circle
On the axis of waveguide cavity；
Described feeding pack include signal feed-in probe, RF isolation and magnetic coupling looper, wherein, described magnetic coupling looper in
Rectangular-shaped, described RF isolation, and the described signal with inserting described RF isolation are inserted in described magnetic coupling looper one end
Feed-in probe is conductively connected, and its other end is vertically arranged with the long limit of described square wave guide cavity, and leads mutually with described antenna housing
Electrical connection；
Signal is transferred to described square wave guide cavity by described magnetic coupling looper, and TEM mould is converted to the TE of rectangular waveguide10Mould,
Again through described circular waveguide chamber, by TE10Mould is converted to TE11Mould, last described polarization sheet metal is to TE11Mould carries out polarization and adjusts
Whole, give 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 described antenna housing is arranged
There is looper welding hole, and by described looper welding hole, described magnetic coupling looper is welded 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 described rectangular waveguide intracavity
Being filled with Rectangular Enclosure with Participating Media block, described circular waveguide intracavity is filled with circular media block, wherein,
Described Rectangular Enclosure with Participating Media block has the mouth of dodging for dodging described magnetic coupling looper, and described polarization sheet metal is arranged on described
On the axis of circular media block.
5. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that described square wave guide cavity
Corner, after chamfered, forms arc-shaped edges.
6. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that the feedback of described antenna housing
Enter end and there is a locating surface, for when mounted, it is thus achieved that para-position angle accurately.
7. the circular polarized antenna fed based on magnetic coupling as claimed in claim 1, it is characterised in that described polarization sheet metal edge
The axis 90-degree rotation in described circular waveguide chamber so that it is the circular polarisation electromagnetic wave given off is at left-hand circular polarization ripple and dextrorotation entelechy
Change and switch between ripple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648547.7U CN205790354U (en) | 2016-06-24 | 2016-06-24 | A kind of circular polarized antenna based on magnetic coupling feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648547.7U CN205790354U (en) | 2016-06-24 | 2016-06-24 | A kind of circular polarized antenna based on magnetic coupling feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205790354U true CN205790354U (en) | 2016-12-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620648547.7U Active CN205790354U (en) | 2016-06-24 | 2016-06-24 | A kind of circular polarized antenna based on magnetic coupling feed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932406A (en) * | 2016-06-24 | 2016-09-07 | 成都雷电微力科技有限公司 | Magnetic coupling feeding based circularly polarized antenna |
| CN108134205A (en) * | 2017-12-13 | 2018-06-08 | 上海航天电子有限公司 | X-band medium electromagnetic horn |
-
2016
- 2016-06-24 CN CN201620648547.7U patent/CN205790354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932406A (en) * | 2016-06-24 | 2016-09-07 | 成都雷电微力科技有限公司 | Magnetic coupling feeding based circularly polarized antenna |
| CN108134205A (en) * | 2017-12-13 | 2018-06-08 | 上海航天电子有限公司 | X-band medium electromagnetic horn |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 610041 Shiyang Industrial Park, No.288, Yixin Avenue, hi tech Zone, Chengdu, Sichuan Province Patentee after: Chengdu lightning Micro Power Technology Co., Ltd Address before: 610041 Shiyang Industrial Park, hi tech Zone, Chengdu, Sichuan Patentee before: RML TECHNOLOGY Co.,Ltd. |