CN108598703A - A kind of four port feed network of broadband C-band circular polarisation - Google Patents
A kind of four port feed network of broadband C-band circular polarisation Download PDFInfo
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- CN108598703A CN108598703A CN201810734205.0A CN201810734205A CN108598703A CN 108598703 A CN108598703 A CN 108598703A CN 201810734205 A CN201810734205 A CN 201810734205A CN 108598703 A CN108598703 A CN 108598703A
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- 230000007704 transition Effects 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000005336 cracking Methods 0.000 claims 1
- 230000010287 polarization Effects 0.000 abstract description 13
- 238000004891 communication Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
Abstract
The invention discloses a kind of four port feed networks of broadband C-band circular polarisation, belong to technical field of satellite communication.It includes broadband circular polarizer, circle side's transition waceguide, broadband orthomode coupler, straight wave guide and two frequency diplexers；Broadband circular polarizer includes square wave guide and four ladder-like ridge pieces on four inner walls of square wave guide, ladder-like ridge piece there are one being set on each inner wall, two ladder-like ridge piece specifications of contraposition are consistent and relative to each other, and two ladder-like its length of ridge piece and the height for facing position are different.The configuration of the present invention is simple can cover the Whole frequency band of C-band, be 1.2GHz by the communication 500MHz and 800MHz circular polarization feed networks broadening of current C-band.The present invention has the characteristics that exempt to debug, be easily assembled, reliability is high, suitable for mass production.
Description
Technical field
The invention discloses a kind of four port feed networks of broadband C-band circular polarisation, it is related to satellite communication C-band and fixes
It stands and movement station antenna technical field, is suitable for the feed network system of C-band transmit-receive sharing circular polarized antenna.
Background technology
Satellite communication has that wide coverage, message capacity is big, transmission quality is good, networking is convenient rapid, it is complete to be easy to implement
The many merits such as ball seamless link, it is considered to be establish a kind of essential important means of global personal communication.
One of the bottleneck of satellite communication development is limited frequency spectrum resource.Currently, in C-band, most commercial satellites are solid
Determine business and mostly uses each 500MHz of sending and receiving bandwidth of operation（It receives：3.7GHz~4.2GHz；Transmitting：5.925GHz~
6.425GHz）；Or 800MHz（It receives：3.4GHz~4.2GHz；Transmitting：5.85GHz~6.65GHz）.With satellite communication industry
Type of being engaged in is increasingly various, and channel resource is more and more crowded and is increasingly saturated, therefore is multiplexed and is broadened uplink using cross polarization
It is more important that C frequency ranges are fully developed with means such as the bandwidth of operation of downlink.
The demand of C frequency range feed broadband operations is more and more, by C-band bandwidth of operation broadening to sending and receiving bandwidth of operation
Each 1.2GHz（Receive：3.625GHz~4.8GHz；Transmitting：5.85GHz~7.025GHz）, to expanding satellite communication capacity tool
It is significant.
Four port feed network of traditional C-band satellite communication antena channeling circular polarisation is using first crossover rate, then split pole
Change, be then converted into the pattern of circular polarisation respectively in high and low frequency frequency band, both uses the partial wave of four wall of Conical Waveguide coupling
Form, by channel-splitting filter, allotment waveguide, high band circular polarizer, low-frequency range circular polarizer, hair resistance filter and receipts resistance filter etc.
Composition, contained microwave device is more, complicated, and the difficulty and workload of debugging are larger, and it is each to can not achieve C-band transmitting-receiving
The broadband circular polarisation application of 1.2GHz.
Invention content
A kind of broadband C-band circular polarisation is provided it is an object of the invention to avoid the shortcoming in above-mentioned background technology
Four port feed networks, have the advantages that it is simple in structure, exempt from debugging, it is at low cost, disclosure satisfy that and work in C-band transceiving band
The wide-band applications of 1.2GHz.
To achieve the goals above, the technical solution adopted in the present invention is as follows：
A kind of four port feed network of broadband C-band circular polarisation comprising broadband circular polarizer, circle side's transition waceguide, broadband are just
Hand over mode coupler, straight wave guide and two frequency diplexers；There are one circular waveguide common ends for the broadband orthomode coupler tool
Mouth and two rectangular ports；The broadband circular polarizer includes square wave guide and four ladders on four inner walls of square wave guide
Shape ridge piece is set on each inner wall there are one ladder-like ridge piece, and two ladder-like ridge piece specifications of contraposition are consistent and opposite to each other, face
Two ladder-like its length of ridge piece and height of position are different；The circular waveguide port of circle side's transition waceguide and wideband orthogonal mode coupling
The public port of device connects, and the square wave guide port of circle side's transition waceguide and one end of broadband circular polarizer connect；Wideband orthogonal mould
One rectangular port of coupler is connect with the public port of a frequency diplexer, another square of broadband orthomode coupler
Shape port is connected to by the straight wave guide with the public port of another frequency diplexer.
Optionally, it is equipped with and cracks on four inner walls of the square wave guide of the broadband circular polarizer, the ladder-like ridge piece
It is embedded in described crack.
Optionally, the broadband orthomode coupler includes circular waveguide, staircase match unit, turnsile connector and two
A T-type power combiner, the circular waveguide are connect with the common end of the turnsile connector, two T-type power combiners with
Orthogonal manner is connect with four rectangular ports of the turnsile connector, and the staircase match unit stands on the turnsile
On the bottom surface of connector inner cavity.
Optionally, the step of the staircase match unit is cylinder or prism, and the staircase match unit passes through axial direction
Screw is fixed on the bottom surface of turnsile connector inner cavity.
Optionally, the frequency diplexer includes public T-type waveguide, low-pass filter and the faces sidewall coupling E waveguide bend,
The public T-type waveguide is connect with the low-pass filter, and the faces sidewall coupling E waveguide bend is set to the low-pass filter
On side wall.
It has the following advantages that compared with the background technology, the present invention：
The present invention is using broadband circular polarizer, broadband orthomode coupler and frequency diplexer composition, broadband circular polarizer and width
3.625GHz~7.025GHz Whole frequency bands may be implemented in band orthomode coupler, and the reception working band of frequency diplexer is reachable
3.625GHz~4.8GHz, transmitting working band is up to 5.85GHz~7.025GHz.The prior art cannot achieve C-band broadband
The circular polarization feed network of each 1.2GHz is received and dispatched, the present invention realizes the broadband application of each 1.2GHz of C frequency ranges transmitting-receiving frequency band, has
Broader working band.
The present invention is using broadband circular polarizer, broadband orthomode coupler and frequency diplexer composition.The prior art is in reality
Divide polarized pattern again using first crossover rate when existing four port circular polarization feed network, circular polarisation realized respectively after split pole,
Complicated, device is various, and debugging is difficult.The present invention, which uses first to divide, is polarized in crossover rate, and circular polarisation is realized before split pole, by
Three core component compositions, it is simple in structure, exempt to debug, reliability is high.
The present invention can fast implement the assembling of four port feed network of C-band circular polarisation, suitable for mass production.
The bandwidth of operation of the present invention covers the feed network bandwidth of operation of current C-band transmitting-receiving 800MHz so that uses
A kind of feed network can meet a variety of different applications, and application prospect is more wide.
In short, the present invention is small, and it is light-weight, it is easy to install, a large amount of human costs can be saved.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of four port feed network of middle width strip C-band of embodiment of the present invention circular polarisation.
Fig. 2 is the right view of Fig. 1 middle width strip circular polarizers.
Fig. 3 is the structural schematic diagram of Fig. 1 middle width strip orthomode couplers.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the structural schematic diagram of Fig. 1 middle width strip frequency diplexers.
In figure：1, broadband circular polarizer, 2, broadband orthomode coupler, 3-1, first frequency duplexer, 3-2, second
Frequency diplexer, 4, circle side's transition waceguide, 5, straight wave guide, 6, square wave guide, the 7, first circular polarizer ridge piece, the 8, second circular polarizer
Ridge piece, 9, public circular waveguide, 10, staircase match unit, the 11, first T-type power combiner, the 12, second T-type power combiner,
13, public T-type waveguide, 14, low-pass filter, 15, the faces sidewall coupling E waveguide bend.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is further explained in more detail.
A kind of four port feed network of broadband C-band circular polarisation comprising broadband circular polarizer, circle side's transition waceguide, width
Band orthomode coupler, straight wave guide and two frequency diplexers；There are one circular waveguide public affairs for the broadband orthomode coupler tool
Port and two rectangular ports altogether；The broadband circular polarizer includes square wave guide and four on four inner walls of square wave guide
Ladder-like ridge piece is set on each inner wall there are one ladder-like ridge piece, and two ladder-like ridge piece specifications of contraposition are consistent and phase each other
Right, two ladder-like its length of ridge piece and the height for facing position are different；The circular waveguide port of circle side's transition waceguide and wideband orthogonal
The public port of mode coupler connects, and the square wave guide port of circle side's transition waceguide and one end of broadband circular polarizer connect；Broadband
One rectangular port of orthomode coupler is connect with the public port of a frequency diplexer, broadband orthomode coupler it is another
One rectangular port is connected to by the straight wave guide with the public port of another frequency diplexer.
Optionally, it is equipped with and cracks on four inner walls of the square wave guide of the broadband circular polarizer, the ladder-like ridge piece
It is embedded in described crack.
Optionally, the broadband orthomode coupler includes circular waveguide, staircase match unit, turnsile connector and two
A T-type power combiner, the circular waveguide are connect with the common end of the turnsile connector, two T-type power combiners with
Orthogonal manner is connect with four rectangular ports of the turnsile connector, and the staircase match unit stands on the turnsile
On the bottom surface of connector inner cavity.
Optionally, the step of the staircase match unit is cylinder or prism, and the staircase match unit passes through axial direction
Screw is fixed on the bottom surface of turnsile connector inner cavity.
Optionally, the frequency diplexer includes public T-type waveguide, low-pass filter and the faces sidewall coupling E waveguide bend,
The public T-type waveguide is connect with the low-pass filter, and the faces sidewall coupling E waveguide bend is set to the low-pass filter
On side wall.
Referring to Fig. 1~5, a kind of four port feed network of broadband C-band circular polarisation, including broadband circular polarizer 1, broadband are just
Hand over mode coupler 2, first frequency duplexer 3-1, second frequency duplexer 3-2, circle side's transition waceguide 4, straight wave guide 5.
One end of the broadband circular polarizer 1 is connect with the square wave port of circle side's transition waceguide 4, circle side's transition waceguide 4
Circular waveguide port connect with the public port circular waveguide mouth of broadband orthomode coupler 2, two of broadband orthomode coupler 2
Rectangular port is connect with one of the public port of first frequency duplexer 3-1, straight wave guide 5 port respectively, straight wave guide 5
Another port is connect with the public port of second frequency duplexer 3-2.
The broadband circular polarizer 1 includes square wave guide 6, two the first circular polarizer ridge pieces, 7, two the second circular polarizers
Ridge piece 8；First circular polarizer ridge piece 7 and the second circular polarizer ridge piece 8 are orthogonal, are embedded in respectively on four inner walls of square wave guide 6；
One of broadband circular polarizer 1 port is connected with the square opening of circle side's transition waceguide 4, and other the one of broadband circular polarizer 1
A port with Feed Horn for connecting.
The working band of this broadband circular polarizer can cover full 3.625GHz~7.025GHz wave bands.
The four of insertion square wave guide after the first ridge piece 7 and the second ridge piece 8 of the broadband circular polarizer 1 can be processed individually
During wall cracks, it can also machine ridge piece is integrated with wave guide wall.
The broadband orthomode coupler 2 includes public circular waveguide 9, staircase match unit 10, the first T-type power combing
Device 11 and the second T-type power combiner 12；9 port of public circular waveguide of broadband orthomode coupler 2 and circle side's transition waceguide 4
Round mouth is connected, and two rectangular ports one are directly connect with the public port of frequency diplexer 3-1, the connection of another port
It is connect again with the public port of frequency diplexer 3-2 after straight wave guide 5.This arrangement avoid two frequency diplexers 3-1 and 3-2
Intersect.
The working band of this broadband orthomode coupler can cover full 3.625GHz~7.025GHz wave bands.
The staircase match unit 10 of the broadband orthomode coupler 2 can be integrally machined molding with public circular waveguide,
It is screwed after can also individually processing.
Described frequency diplexer 3-1, the 3-2 includes that public T-type waveguide 13, low-pass filter 14 and the faces sidewall coupling E are curved
Waveguide 15.
In this frequency diplexer, the reception working band of bandpass filter is up to 3.625GHz~4.8GHz, sidewall coupling E
The transmitting working band of face waveguide bend is up to 5.85GHz~7.025GHz.
In upper example, four ports of four port feed network description of broadband C-band circular polarisation are left-handed closing in, and dextrorotation is received
Mouthful, mouth is sent out in left-handed hair mouth, dextrorotation.The public port of four port feed network of broadband C-band circular polarisation is broadband circular polarizer
A port, for being connected with Feed Horn.Wherein, receiving port is BJ70 type waveguide ports, and emission port is BJ70 types
Waveguide port.
The brief operation principle of the present invention is as follows：
C-band circular polarisation four port feed network in broadband uses broadband circular polarizer so that circular polarisation is in Feed Horn and width
It is formed between band orthomode coupler, receives and dispatches the method that the separation of frequency band uses first split pole subdivided frequency.
To receiving frequency range, the left or right rotation circularly polarised wave signal received from Feed Horn becomes through broadband circular polarizer
Linear polarization signal inputs broadband orthomode coupler, respectively enters the left-hand circular polarization port or the right side of broadband orthomode coupler
Hand circular polarization port by the left-handed port of the reception for the frequency diplexer being connect with broadband orthomode coupler or receives dextrorotation port
Output, is isolated with emission port.
To emitting frequency range, left-hand circular polarization wave is that signal is defeated by the frequency diplexer emission port of transmission left-hand circular polarization wave
Enter, into broadband orthomode coupler and broadband circular polarizer after formed left-hand circular polarization signal, be input to Feed Horn radiation,
Similarly right-handed circular polarization wave is that signal is inputted by the frequency diplexer emission port of transmission right-handed circular polarization wave, into wideband orthogonal
Mode coupler and broadband circular polarizer form right-handed circular polarization signal, are input to Feed Horn radiation, are isolated with receiving port.
In short, this invention simplifies system composition, broadband circular polarizer of the invention and broadband orthomode coupler can be with
Realize the design of C-band Whole frequency band, the bandwidth of the transmitting-receiving frequency band of frequency diplexer is 1.2GHz, and current C-band is communicated
The broadening of 500MHz and 800MHz circular polarization feed networks is 1.2GHz.The present invention have exempt to debug, be easily assembled, reliability is high, suitable
The characteristics of closing batch production.
It should be pointed out that the above specific implementation mode is the specific case of this patent implementation, without also can not
All realization methods of this patent can be covered, therefore the restriction to the scope of this patent cannot be regarded as；The every and above case
Belong to the implementation of same idea or the assembled scheme of above-mentioned several schemes, within the protection domain of this patent..
Claims (5)
1. a kind of four port feed network of broadband C-band circular polarisation, it is characterised in that：Including broadband circular polarizer, the transition of circle side
Waveguide, broadband orthomode coupler, straight wave guide and two frequency diplexers；There are one circles for the broadband orthomode coupler tool
Waveguide public port and two rectangular ports；The broadband circular polarizer includes square wave guide and is set on four inner walls of square wave guide
Four ladder-like ridge pieces, set on each inner wall there are one ladder-like ridge piece, two ladder-like ridge piece specifications of contraposition it is consistent and
Opposite to each other, two ladder-like its length of ridge piece and the height for facing position are different；The circular waveguide port of circle side's transition waceguide and width
Public port connection with orthomode coupler, the square wave guide port of circle side's transition waceguide and one end of broadband circular polarizer connect
It connects；One rectangular port of broadband orthomode coupler is connect with the public port of a frequency diplexer, wideband orthogonal mould coupling
Another rectangular port of clutch is connected to by the straight wave guide with the public port of another frequency diplexer.
2. a kind of four port feed network of broadband C-band circular polarisation according to claim 1, it is characterised in that：The width
It is equipped with and cracks on four inner walls of the square wave guide with circular polarizer, the ladder-like ridge piece is embedded in described in cracking.
3. a kind of four port feed network of broadband C-band circular polarisation according to claim 1, it is characterised in that：The width
Band orthomode coupler includes circular waveguide, staircase match unit, turnsile connector and two T-type power combiners, described
Circular waveguide is connect with the common end of the turnsile connector, and two T-type power combiners are turned with orthogonal manner and the cross
Four rectangular ports connection of door connector, the staircase match unit are stood on the bottom surface of turnsile connector inner cavity.
4. a kind of four port feed network of broadband C-band circular polarisation according to claim 3, it is characterised in that：The rank
The step of terraced matching unit is cylinder or prism, and the staircase match unit is fixed on the turnsile by axial screw
On the bottom surface of connector inner cavity.
5. a kind of four port feed network of broadband C-band circular polarisation according to claim 1, it is characterised in that：The frequency
Rate duplexer includes public T-type waveguide, low-pass filter and the faces sidewall coupling E waveguide bend, the public T-type waveguide with it is described
Low-pass filter connects, and the faces sidewall coupling E waveguide bend is set on the side wall of the low-pass filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810734205.0A CN108598703A (en) | 2018-07-06 | 2018-07-06 | A kind of four port feed network of broadband C-band circular polarisation |
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| CN201810734205.0A CN108598703A (en) | 2018-07-06 | 2018-07-06 | A kind of four port feed network of broadband C-band circular polarisation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718729A (en) * | 2019-08-05 | 2020-01-21 | 西安空间无线电技术研究所 | Compact flange-free waveguide connection structure and design method |
| CN113794058A (en) * | 2021-09-16 | 2021-12-14 | 上海航天测控通信研究所 | Coupling and separator |
| CN113839155A (en) * | 2021-06-30 | 2021-12-24 | 西安空间无线电技术研究所 | Asymmetric minimized Ka dual-circular polarization frequency duplexer |
| CN114204268A (en) * | 2021-11-30 | 2022-03-18 | 中国电子科技集团公司第五十四研究所 | C/Ku dual-frequency shared circularly polarized coaxial feed source network |
| CN114204267A (en) * | 2021-11-30 | 2022-03-18 | 中国电子科技集团公司第五十四研究所 | Miniaturized multi-frequency shared circularly polarized coaxial feed source network |
| CN116565502A (en) * | 2023-07-11 | 2023-08-08 | 银河航天(西安)科技有限公司 | Cross coupler and feed source assembly |
| CN116581550A (en) * | 2023-07-11 | 2023-08-11 | 银河航天(西安)科技有限公司 | Feed source assembly and feed source system |
| CN117578095A (en) * | 2024-01-16 | 2024-02-20 | 柒零叁信息科技有限公司 | Millimeter wave double-frequency broadband circularly polarized antenna |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718729A (en) * | 2019-08-05 | 2020-01-21 | 西安空间无线电技术研究所 | Compact flange-free waveguide connection structure and design method |
| CN113839155A (en) * | 2021-06-30 | 2021-12-24 | 西安空间无线电技术研究所 | Asymmetric minimized Ka dual-circular polarization frequency duplexer |
| CN113794058A (en) * | 2021-09-16 | 2021-12-14 | 上海航天测控通信研究所 | Coupling and separator |
| CN114204268B (en) * | 2021-11-30 | 2022-09-02 | 中国电子科技集团公司第五十四研究所 | C/Ku dual-frequency shared circularly polarized coaxial feed source network |
| CN114204267A (en) * | 2021-11-30 | 2022-03-18 | 中国电子科技集团公司第五十四研究所 | Miniaturized multi-frequency shared circularly polarized coaxial feed source network |
| CN114204267B (en) * | 2021-11-30 | 2022-08-30 | 中国电子科技集团公司第五十四研究所 | Miniaturized multi-frequency shared circularly polarized coaxial feed source network |
| CN114204268A (en) * | 2021-11-30 | 2022-03-18 | 中国电子科技集团公司第五十四研究所 | C/Ku dual-frequency shared circularly polarized coaxial feed source network |
| CN116565502A (en) * | 2023-07-11 | 2023-08-08 | 银河航天(西安)科技有限公司 | Cross coupler and feed source assembly |
| CN116581550A (en) * | 2023-07-11 | 2023-08-11 | 银河航天(西安)科技有限公司 | Feed source assembly and feed source system |
| CN116565502B (en) * | 2023-07-11 | 2023-09-22 | 银河航天(西安)科技有限公司 | Cross coupler and feed source assembly |
| CN116581550B (en) * | 2023-07-11 | 2023-11-24 | 银河航天(西安)科技有限公司 | Feed source assembly and feed source system |
| CN117578095A (en) * | 2024-01-16 | 2024-02-20 | 柒零叁信息科技有限公司 | Millimeter wave double-frequency broadband circularly polarized antenna |
| CN117578095B (en) * | 2024-01-16 | 2024-04-09 | 柒零叁信息科技有限公司 | Millimeter wave double-frequency broadband circularly polarized antenna |
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