CN206098733U - Two circular polarized antenna units and array antenna - Google Patents
Two circular polarized antenna units and array antenna Download PDFInfo
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- CN206098733U CN206098733U CN201621042787.9U CN201621042787U CN206098733U CN 206098733 U CN206098733 U CN 206098733U CN 201621042787 U CN201621042787 U CN 201621042787U CN 206098733 U CN206098733 U CN 206098733U
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Abstract
The utility model discloses a two circular polarized antenna units and array antenna relates to electronic information sensing field. The utility model discloses array antenna includes m n two circular polarized antenna units and feed network, two circular polarized antenna units include the radiation cavity body, firstly lead radiation, first to the 2nd waveguide cavity, first to second feed port and metal wall to the 2nd circular polarized wave. The utility model discloses a different metal partition move looks, can cover two frequency channels of height, and it is higher to can be used to gains such as radar, communication, navigation, in the antenna that receiving and dispatching shared, the directionality is strong, are the two circular polarization array antenna of efficient receiving and dispatching, still can be used to the circular polarization phased array antenna of electronics beam scanning through the extension.
Description
Technical field
The field that this utility model design is related to is electronic information sensor-based system, can be used for the gains such as radar, communication, navigation
In the strong antenna of higher, directionality, it is a kind of efficient transmitting-receiving double-circle polarization array antenna, by extension, it may also be used for electricity
The circular polarisation phased array antenna of wavelet beam scanning.
Background technology
In electronic information, the form of conventional circular polarization array or phased array antenna has various, but each day
Line form has respective characteristic and pluses and minuses, is embodied in following characteristics：
1st, micro-strip circular polarized antenna.Micro-strip circular polarized antenna is mode of resonance antenna, and circular polarisation implementation is perturbation, electric bridge
The modes such as cooperation are fed with multiport.Wherein perturbation mode is easily realized, it is only necessary to which the integration when printed board is made is completed, nothing
Extra power distribution unit is needed, but its standing-wave ratio and axial ratio bandwidth are narrower, radiation loss is big, be unfavorable for realizing double-circle polarization and efficiently
Radiation；The circular polarisation implementation that electric bridge and multiport feed are combined is capable of achieving larger radiation bandwidth, and axle ratio characteristic is good, but by
In extra components and parts are introduced, its making is relative complex, have also been introduced extra insertion loss.
2nd, single port radiating guide circular polarized antenna, this antenna are especially suitable for the generation for carrying out circularly polarized signal, and
Certain angular range interior axle is smaller, and implementation method is simple, handling ease, but for port radiation mode is unfavorable for realizing width
Band characteristic and transceiver insulation, if will realize, are often split using dual-mode antenna or reverse feeding are realized, its complexity is big.
3rd, circular polarisation is realized using polarization grid.The circularly polarized signal of this kind of mode realizes that technology is relatively simple, but this side
Formula introduces the insertion loss of polarization grid, and as the grid that polarize are resonance form, is unfavorable for realizing wideband axis ratio.
Utility model content
This utility model has the realization approach for being totally different from above-mentioned several circular polarization wide beam array antennas, there is provided one
High efficiency, low-loss double circle antennas are planted, various shortcomings present in above antenna are overcome.
For solve problem above, the technical scheme adopted by this utility model for：A kind of dual circularly polarized antenna unit, including
Radiating enclosures 5, the first circular polarisation waveguide radiator 3, the second circular polarisation waveguide radiator 4, first wave guide cavity 11, second waveguide
Cavity 12, the first feed port 7, the second feed port 8 and metal wall；The top of radiating enclosures 5 and set on inwall centrage
It is equipped with the first circular polarisation waveguide radiator 3；
Metal wall includes the secondary divider wall 6 of main divider wall 9, two and metal derby 10, and main divider wall 9 is located at radiating enclosures 5
Between two opposite faces and the length of main divider wall and the feed port length of radiating enclosures 5 are identical；Two secondary divider walls 6 are located at master
The same side of divider wall 9 and perpendicular with main divider wall 9, one end of two secondary divider walls 6 two ends respectively with main divider wall 9
One-to-one corresponding is connected, and the other end of two secondary divider walls 6 is connected with the inwall of radiating enclosures 5；Two secondary divider walls 6 it
Between be provided with metal derby 10, metal derby 10 constitutes step-like, the length of metal derby 10 and two secondary divider walls 6 with main divider wall 9
The distance between it is identical；
The bottom of radiating enclosures 5 is divided into two parts, a part to be first wave guide cavity 11 and the first feed by metal wall
Port 7, another part are second waveguide cavity 12 and the second feed port 8；The secondary divider wall 6 of metal derby 10, two and radial chamber
The lower inner wall of body 5 encloses to form second waveguide cavity 12；Main divider wall 9 encloses to form the with the lower inner wall of radiating enclosures 5
One wave-guide cavity wave 11；
The upper surface of main divider wall 9 is provided with the first circular polarisation waveguide radiator 3；The upper surface of metal derby 10 be provided with
Its second circular polarisation of length identical waveguide radiator 4.
Wherein, the first circular polarisation waveguide radiator 3 and the second circular polarisation waveguide radiator 4 be the metal of metallic monolith every
Plate, the maximum height of the second circular polarisation waveguide radiator 4 are less than the bottom of the first circular polarisation waveguide radiator 3；Second circular polarisation
The bottom length of waveguide radiator 4 is identical with metal derby 10.
Wherein, the first described circular polarisation waveguide radiator 3 is located on the centrage of radiating enclosures 5, the second circularly polarised wave
Lead irradiator 4 to be located on the centrage of its radiating enclosures；Described radiating enclosures are by 9, two secondary divider walls 6 of main divider wall and spoke
The lower inner wall for penetrating cavity 5 encloses to be formed.
Wherein, each secondary divider wall 6 is provided with groove near the side of 5 inwall of radiating enclosures.
Wherein, the top of the first circular polarization radiation device 3 to 9 upper surface of main divider wall height be 0.67 times of wavelength；Second
The top of circular polarization radiation device 4 to the second feed port 8 height be 1 times of wavelength.
Wherein, medium is filled with the cavity of radiating enclosures 5.
A kind of double-circle polarization array antenna, including m × n dual circularly polarized antenna unit 2 and feeding network, wherein m, n are equal
It is the natural number more than 1；Described feeding network is double-deck micro-strip or double-deck waveguide form, each layer respectively with the first feed end
Mouth 7 is corresponded with the second feed port 8 and is connected.
This utility model is compared background technology and is had the advantage that：
1st, this utility model is conducive to improving the radiation efficiency of antenna using metal waveguide.
2nd, this utility model carries out phase shift using different metal partion (metp)s, and circular polarisation port can unrestricted choice, can basis
Different polarization demands are designed.
3rd, the aerial array of this utility model design, not only can be only used for array antenna, it is also possible to according to demand, passes through
The filled media inside the metal waveguide, carries out miniaturization, realizes the phased array antenna of wide angle beam scanning, with strong orientation
Property, good antenna beam, standing-wave ratio and axle compare performance.
4th, the implementation of aerial array can be diversified, and the reality can be realized in machining, welding, injection, casting etc.
With new.
Description of the drawings
Fig. 1 is a kind of double-circle polarization array antenna two dimensional representation of the present utility model.
Fig. 2 is a kind of cell schematics of double-circle polarization array antenna of the present utility model.
Fig. 3 is a kind of unit top view of double-circle polarization array antenna of the present utility model.
Fig. 4 is a kind of unit upward view of double-circle polarization array antenna of the present utility model.
Specific embodiment
The utility model is described in more detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to Fig. 4, a kind of double-circle polarization array antenna 1, including m × n dual circularly polarized antenna unit 2 and feed
Network, wherein m, n are the natural number more than 1, and dual circularly polarized antenna unit 2 includes radiating enclosures 5, the first circular polarisation waveguide spoke
Emitter 3, the second circular polarisation waveguide radiator 4, first wave guide cavity 11, second waveguide cavity 12, the first feed port 7 and second
Feed port 8 and metal wall.
Radiating enclosures 5 are internally provided with metal wall, and metal wall includes the secondary divider wall 6 of main divider wall 9, two and metal derby
10, the bottom surface of the secondary divider walls 6 of main divider wall 9, two and metal derby 10 is at a stalemate with the radiation port of radiating enclosures 5 flat；It is main every
Be located between two opposite faces of radiating enclosures 5 from wall 9 and length and the radiating enclosures 5 of main divider wall feed port length phase
Together；Two secondary divider walls 6 are located between main divider wall 9 and the inwall of corresponding radiating enclosures 5, one end of two secondary divider walls 6
Correspond with the two ends of main divider wall 9 respectively and be connected, the inwall of the other end of two secondary divider walls 6 with radiating enclosures 5
It is connected；Metal derby 10 is provided between two secondary divider walls 6, metal derby 10 constitutes step-like, metal derby 10 with main divider wall 9
Length it is identical with the distance between two secondary divider walls 6.
The bottom of radiating enclosures 5 is divided into two parts, a part to be first wave guide cavity 11 and the first feed by metal wall
Port 7, another part are second waveguide cavity 12 and the second feed port 8；The secondary divider wall 6 of metal derby 10, two and radial chamber
The lower inner wall of body 5 encloses to form second waveguide cavity 12；Main divider wall 9 encloses to form the with the lower inner wall of radiating enclosures 5
One wave-guide cavity wave 11.
Each secondary divider wall 6 is provided with groove near the side of 5 inwall of radiating enclosures.
Second circular polarisation waveguide radiator 4 is a step-like metal partion (metp), and its maximum height is less than the first circular polarisation
The bottom of waveguide radiator 3.Second circular polarisation waveguide radiator 4 is located at the upper surface of metal derby 10 and in its radiating enclosures
On heart line, its length is identical identical with the length of metal derby 10.Set below second circular polarisation waveguide radiator, 4 step-like outer wall
There is the second radiation port 8.
First circular polarisation waveguide radiator 3 is the metallic membrane of multiple metal steps composition.First circular polarisation waveguide antenna
Device 3 is located at the upper surface of main divider wall 9 and on the centrage of radiating enclosures 5.
Feeding network is double-deck micro-strip or waveguide form, each layer respectively with the first feed port 7 and the second feed port 8
It is connected.
The dual circularly polarized antenna unit 2 of above-mentioned development is carried out after group battle array, letter is carried out by the feed networking of rear end
Number synthesis, and implement rectangle or triangular pitch according to certain rule, it is possible to realize the design and development of array.
By taking certain frequency range circular polarised array antenna design as an example, the new novelty of the technical application is illustrated.The antenna of design
Scheme covers two frequency ranges of height, and octave is 1.5, wherein, the mouth face size of radiating enclosures 5 is 0.73 times of wavelength relative to low
Frequency range, right-handed circular polarization shaping unit of the first circular polarization radiation device 3 for low-frequency range, the second circular polarization radiation device 4 are height
The left-hand circular polarization shaping unit of frequency range, the height of the top of the metal partion (metp) of the first circular polarization radiation device 3 to secondary divider wall 6
It is 0.67 times of wavelength relative to low-frequency range to spend, and the top of 4 metal partion (metp) of the second circular polarization radiation device is to the second feed port 8
Highly for 1 times of wavelength relative to high band.The signal of whole frequency range can be exported by a radiation port using after the technology,
Double-circle polarization is generated simultaneously, and the axle ratio characteristic of circular polarisation is less than 1.5dB in normal beam, and cross polarization is less than 25dB, both saved
The space of Antenna Design is saved, antenna radiation efficiency has been improve again, while being also beneficial to the realization of rear end feeding classification.
Operation principle
By taking a kind of double-circle polarization array antenna as an example, the operation principle of the utility model is illustrated.The antenna can both work
In emission state, reception state can be operated in again.
When transmitting a signal, the signal that transmitter is produced enters double-deck feeding network, respectively enters 7 He of the first feed port
Second feed port 8.Wherein, through the signal of the first feed port 7, transmit in waveguide intracavity, reach the first circular polarization radiation
During device 3, linear polarization signal is converted into into circularly polarized signal, is radiated in space by radiating enclosures 5.Through the second feed port 8
Signal, waveguide intracavity transmit, reach the second circular polarization radiation device 4 when, linear polarization signal is converted into into circularly polarized signal, by
Radiating enclosures 5 are radiated in space.
When a signal is received, space come circular polarisation polarized signal through radiating enclosures 5 as shown in Figure 2, through first
The signal of circular polarization radiation device 3, polarization are converted into linear polarization by circular polarisation, by wave-guide cavity wave, by the first feed port 7
Into the feeding network which connects, the receive capabilities of signal are realized.Through the signal of the second circular polarization radiation device 4, polarization
Linear polarization is converted into by circular polarisation, by its wave-guide cavity wave, the feeding network of its connection is entered by the second feed port 8, and then
Realize the receive capabilities of signal.
Claims (7)
1. a kind of dual circularly polarized antenna unit, including radiating enclosures (5) and the first circular polarisation waveguide radiator (3)；Radiating enclosures
(5) top and the first circular polarisation waveguide radiator (3) is provided with inwall centrage, it is characterised in that：Also include second
Circular polarisation waveguide radiator (4), first wave guide cavity (11), second waveguide cavity (12), the first feed port (7), the second feedback
Electric port (8) and metal wall；
Described metal wall includes main divider wall (9), two secondary divider walls (6) and metal derby (10), and main divider wall (9) is positioned at spoke
Penetrate between two opposite faces of cavity (5) and the length of main divider wall is identical with the feed port length of radiating enclosures (5)；Two secondary
Divider wall (6) is positioned at the same side of main divider wall (9) and perpendicular with main divider wall (9), one end of two secondary divider walls (6)
Correspond with the two ends of main divider wall (9) respectively and be connected, the other end of two secondary divider walls (6) with radiating enclosures (5)
Inwall be connected；Metal derby (10) is provided between two secondary divider walls (6), metal derby (10) is constituted with main divider wall (9)
Step-like, the length of metal derby (10) is identical with the distance between two secondary divider walls (6)；
The bottom of radiating enclosures (5) is divided into two parts by metal wall, and a part is first wave guide cavity (11) and the first feed
Port (7), another part are second waveguide cavity (12) and the second feed port (8)；Metal derby (10), two secondary divider walls
And the lower inner wall of radiating enclosures (5) encloses to form second waveguide cavity (12) (6)；Main divider wall (9) and radiating enclosures (5)
Lower inner wall encloses to form first wave guide cavity (11)；
The upper surface of main divider wall (9) is provided with the first circular polarisation waveguide radiator (3)；The upper surface of metal derby (10) is provided with
With its length identical the second circular polarisation waveguide radiator (4).
2. a kind of dual circularly polarized antenna unit according to claim 1, it is characterised in that：First circular polarisation waveguide radiator
(3) and the second circular polarisation waveguide radiator (4) is the metal partion (metp) of metallic monolith, the second circular polarisation waveguide radiator (4)
Bottom of the maximum height less than the first circular polarisation waveguide radiator (3)；The bottom length of the second circular polarisation waveguide radiator (4) with
Metal derby (10) is identical.
3. a kind of dual circularly polarized antenna unit according to claim 1 and 2, it is characterised in that：The first described circular polarisation
, on the centrage of radiating enclosures (5), the second circular polarisation waveguide radiator (4) is positioned at its radiating enclosures for waveguide radiator (3)
Centrage on；Lower inner wall of the described radiating enclosures by main divider wall (9), two secondary divider walls (6) and radiating enclosures (5)
Enclose to be formed.
4. a kind of dual circularly polarized antenna unit according to claim 1 and 2, it is characterised in that：Each secondary divider wall (6) is leaned on
The side of nearly radiating enclosures (5) inwall is provided with groove.
5. a kind of dual circularly polarized antenna unit according to claim 3, it is characterised in that：First circular polarization radiation device (3)
Top to main divider wall (9) upper surface height be 0.67 times of wavelength；The top of the second circular polarization radiation device (4) is to the second feedback
The height of electric port (8) is 1 times of wavelength.
6. a kind of dual circularly polarized antenna unit according to claim 1 and 2, it is characterised in that：The cavity of radiating enclosures (5)
In be filled with medium.
7. a kind of double-circle polarization array antenna, including m × n dual circularly polarized antenna unit (2) as claimed in claim 1 and feedback
Electric network, wherein m, n are the natural number more than 1；It is characterized in that：Described feeding network is double-deck micro-strip or double-deck waveguide
Form, each layer are corresponded with the first feed port (7) and the second feed port (8) respectively and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621042787.9U CN206098733U (en) | 2016-09-08 | 2016-09-08 | Two circular polarized antenna units and array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621042787.9U CN206098733U (en) | 2016-09-08 | 2016-09-08 | Two circular polarized antenna units and array antenna |
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| CN206098733U true CN206098733U (en) | 2017-04-12 |
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| CN201621042787.9U Active CN206098733U (en) | 2016-09-08 | 2016-09-08 | Two circular polarized antenna units and array antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207439A (en) * | 2016-09-08 | 2016-12-07 | 中国电子科技集团公司第五十四研究所 | A kind of dual circularly polarized antenna unit and array antenna |
| CN109687103A (en) * | 2018-12-12 | 2019-04-26 | 中国电子科技集团公司第三十八研究所 | A kind of circular waveguide leaky antenna element and antenna array |
| CN112701438A (en) * | 2020-12-22 | 2021-04-23 | 华南理工大学 | Polarization reconfigurable bidirectional co-rotation direction circularly polarized antenna based on dielectric polarizer |
-
2016
- 2016-09-08 CN CN201621042787.9U patent/CN206098733U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207439A (en) * | 2016-09-08 | 2016-12-07 | 中国电子科技集团公司第五十四研究所 | A kind of dual circularly polarized antenna unit and array antenna |
| CN106207439B (en) * | 2016-09-08 | 2023-03-24 | 中国电子科技集团公司第五十四研究所 | Double-circular-polarization antenna unit and array antenna |
| CN109687103A (en) * | 2018-12-12 | 2019-04-26 | 中国电子科技集团公司第三十八研究所 | A kind of circular waveguide leaky antenna element and antenna array |
| CN109687103B (en) * | 2018-12-12 | 2020-07-24 | 中国电子科技集团公司第三十八研究所 | Circularly polarized waveguide slot antenna unit and antenna array |
| CN112701438A (en) * | 2020-12-22 | 2021-04-23 | 华南理工大学 | Polarization reconfigurable bidirectional co-rotation direction circularly polarized antenna based on dielectric polarizer |
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