CN207602764U - A kind of multifrequency feed network based on coaxial turnsile coupler - Google Patents
A kind of multifrequency feed network based on coaxial turnsile coupler Download PDFInfo
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- CN207602764U CN207602764U CN201721765468.5U CN201721765468U CN207602764U CN 207602764 U CN207602764 U CN 207602764U CN 201721765468 U CN201721765468 U CN 201721765468U CN 207602764 U CN207602764 U CN 207602764U
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Abstract
The utility model discloses a kind of multifrequency feed networks based on coaxial turnsile coupler, belong to wireless communication technology field.It includes coaxial turnsile coupler, two broadband torsional wave guide cards, two LS two-bands frequency diplexers and a set of C frequency ranges Microwave Net.The utility model excellent electrical property, processing is simple, can use and share the shared feed frequently of the frequency ranges such as feed or L/S/C/X four frequently in the frequency ranges such as L/S/C, C/X/Ku, X/Ku/K, K/Ka/EHF three, be a kind of important improvement to the prior art.
Description
Technical field
The utility model is related to observing and controlling of navigating, wireless communication and radio astronomy technical fields, particularly relate to a kind of based on same
The multifrequency feed network of axial cross revolving door coupler.
Background technology
It has generally been used, and with satellite frequency spectrum resource in fields transmit-receive sharings such as navigation observing and controlling, satellite communications
Increase, and in view of antenna system cost and the advantage of laying, Bifrequency shared antenna use also increasingly extensive, and further band
Carry out three frequencies and share the demand that feed even four frequencies share feed.But frequency phase-difference it is excessive when, easily excitation inside circular waveguide
The higher mode of waveguide transmission, in this regard, double frequency application fashion can control, three frequencies are then difficult to realize preferable electric property when sharing.
Coaxial turnsile coupler due to can in coaxial waveguide transmission of one line signal, in the hollow formation of coaxial waveguide inner wire
Transmission another way signal in circular waveguide, therefore can easily construct double frequency or multifrequency feed.
But coaxial turnsile coupler of the prior art is relatively narrow in coaxial waveguide channel bandwidth, it is impossible to which transmission is double
Frequency signal can only transmit two-frequency signal in the circular waveguide of the hollow formation of coaxial inner conductor and form three frequency feeds.
Utility model content
It in view of this, can the utility model proposes a kind of multifrequency feed network based on coaxial turnsile coupler
To transmit the two-frequency signals such as L/S, X/Ku, Ku/K, and higher frequency range letter is transmitted in the circular waveguide of the hollow formation of coaxial inner conductor
Number, so as to form three frequencies even four frequency feeds.
Based on above-mentioned purpose, technical solution provided by the utility model is:
A kind of multifrequency feed network based on coaxial turnsile coupler, including turnsile coupler, two
A broadband torsional wave guide card, two frequency diplexers and a set of Microwave Net, the turnsile coupler include coaxial waveguide
Structure, two rectangular waveguide ports and two groups of power combing/distribution pipes of connection rectangular waveguide port and coaxial waveguide structure
Road, two groups of power combing/distribution circuit by four around the equally distributed rectangle Coupled Passive Waveguide Structure of coaxial waveguide structure with
The coaxial waveguide structure connection, the center of the inner wire metal of the coaxial waveguide structure have the circle for being used to form circular waveguide
Cylindricality through-hole, the signal frequency of the Microwave Net is higher than the letter transmitted in coaxial waveguide structure in the turnsile coupler
Number frequency, the broadband torsional wave guide card are double ridged waveguide structure;The frequency diplexer be three port cavity body structures, three port
Cavity body structure is used for transmission lower frequency section letter including a rectangular waveguide port for being used for transmission upper frequency segment signal, one
Number rectangular waveguide port and a common rectangular waveguide end for being used for transmission upper frequency section and lower frequency segment signal
Mouthful, two rectangular waveguide ports of the turnsile coupler are respectively by described in a broadband torsional wave guide card and one
The common rectangular waveguide port connection of frequency diplexer, the common rectangular waveguide port and cross of the frequency diplexer of interconnection
It is in 45 ° of angles between the longitudinally asymmetric axis for the cross section of two waveguides transmitted in the rectangular waveguide port of revolving door coupler,
The central plane of the broadband torsional wave guide card turnsile Coupler ports that just torsional wave guide card is connect for the broadband and frequency are double
The equidistant point of angle between work device port.
Optionally, the bottom tool of the coaxial waveguide structure of the turnsile coupler is round or square there are one bottom surface
The positive column bodily form protrusion of shape, the protrusion is coaxial with the coaxial waveguide structure, and the protrusion extends to four rectangle coupled waves
It in the region of guide structure and forms one on the bottom surface of each rectangle Coupled Passive Waveguide Structure and extends transversely through entire rectangle coupled wave
The step structure of guide structure, the step structure in each rectangle Coupled Passive Waveguide Structure is relative to the vertical of the rectangle Coupled Passive Waveguide Structure
Extending on the direction of rectangle Coupled Passive Waveguide Structure to middle vertical plane mirror symmetry and smoothly;It is led in the coaxial waveguide structure
Body end also has the metal frustum cone structure as impedance matching structure, and the metal frustum cone structure is coaxial with coaxial waveguide structure
And the bottom surface of metal frustum cone structure is connected with the top surface of the protrusion.
Optionally, the top surface diameter of the metal frustum cone structure is greater than or equal to the coaxial waveguide structure inner wire metal
Diameter.
Optionally, it is respectively provided with down between the outer conductor metal of the coaxial waveguide structure and four rectangle Coupled Passive Waveguide Structures
Rounded structure.
Optionally, the broadband torsional wave guide card is respectively with one in two long side walls with rectangular inner cavity and rectangular inner cavity
The ridge waveguide of the ridge of a protrusion, two ridges relative to the median plane mirror symmetry of ridge waveguide, distinguish by broadside and the narrow side of ridge waveguide
More than the broadside and narrow side of the rectangular waveguide port of the common rectangular waveguide port and turnsile coupler of frequency diplexer.
Optionally, three port devices of the frequency diplexer for waveguide E face branch or waveguide H faces branch, including one
Rectangular waveguide port, a square for being used for input/output intermediate frequency segment signal for input/output lower frequency segment signal
Shape waveguide port and one for input/output it is high, in two frequency band signals common rectangular waveguide port.
Optionally, the low-frequency rectangular waveguide port of two frequency diplexers is mutually parallel, and two intermediate frequency section rectangles
Waveguide port is also mutually parallel.
Optionally, it is connected to wave in the low-frequency rectangular waveguide port of two frequency diplexers and high frequency rectangular waveguide port
Conducting bridge, so as to form four port feed of circular polarisation.
Optionally, it is connected to waveguide electricity in the low-frequency rectangular waveguide port of two frequency diplexers or high frequency rectangular waveguide port
Bridge, so as to form while have four port feeds of circular polarisation and linear polarization.
Optionally, the Microwave Net is single-frequency Microwave Net or double frequency Microwave Net.
From narration above as can be seen that the advantageous effect of technical solutions of the utility model is:
1st, the utility model extends the coupling bandwidth of coaxial turnsile coupler, makes coaxial turnsile coupler same
Axis waveguide paths bandwidth reaches 1.9:1, so as to transmit the two-frequency signals such as L/S, X/Ku, Ku/K, also, in coaxial inner conductor
Higher frequency band signals can be transmitted in the circular waveguide that sky is formed, so as to form three frequency feeds, if in addition, hollow in coaxial inner conductor
The two-frequency signal of higher frequency range is transmitted in the circular waveguide of formation, can also form four frequency feeds.
2nd, the utility model adds among turnsile coupler and frequency diplexer turns polarized wave guide card, makes frequency
45 ° of duplexer polarization rotation, two polarization outlets of whole network similar frequency bands are mutually parallel, and are easy to the peace of follow-up waveguide device
Dress is especially conducive to realize circular polarisation, whole device simple and compact structure by connecting electric bridge.
When experiment shows that the present apparatus shares frequently for L/S/C tri-, L-band is 1.25GHz ~ 1.61GHz, S frequency ranges are
In the frequency range of 2.0GHz ~ 2.25GHz, the standing wave of two output rectangular ports is less than 1.25:1.The circle of the hollow formation of coaxial inner conductor
Waveguide can transmit C frequency ranges transmitting-receiving global semaphore.
In short, the utility model excellent electrical property, processing is simple, can use in L/S/C, C/X/Ku, X/Ku/K, K/
The frequency ranges such as Ka/EHF three are shared frequently in the four public feed of frequency of the frequency ranges such as feed or L/S/C/X, are to a kind of heavy of the prior art
It improves.
Description of the drawings
In order to clearly describe this patent, one or more attached drawing is provided below, these attached drawings are intended to this patent
Background technology, technical principle and/or certain specific embodiments make aid illustration.It should be noted that these attached drawings can
It can not also provide some to provide and have been described and belong to known in those of ordinary skill in the art often at this patent word segment
The detail of knowledge;Also, because those of ordinary skill in the art can combine the published word content of this patent completely
And/or accompanying drawing content, more attached drawings, therefore these attached drawings below are designed in the case where not paying any creative work
Can cover can not also cover all technical solutions that this patent word segment is described.In addition, these attached drawings is specific interior
Containing needs the word content with reference to this patent to be determined, when word content and some apparent knot in these attached drawings of this patent
When structure is not consistent, needing the narration of common knowledge and this patent other parts with reference to this field, to carry out comprehensive descision be this on earth
There are exist to draw mistake in clerical mistake or attached drawing for the word segment of patent.Particularly, the following drawings is the figure of exemplary in nature
Piece, it is not intended that imply the protection domain of this patent, those of ordinary skill in the art are by reference to the text disclosed in this patent
Word content and/or accompanying drawing content can design more attached drawings in the case where not paying any creative work, these are new
Technical solution representated by attached drawing is still within the protection domain of this patent.
Fig. 1 is a kind of principle schematic of feed network in the utility model embodiment;
Fig. 2 is a kind of structure diagram of feed network in the utility model embodiment;
Fig. 3 is the structure diagram of coaxial waveguide turnsile coupler in Fig. 2;
Fig. 4 is the schematic cross-section of the impedance matching structure of coaxial waveguide turnsile coupler in Fig. 3, the filling in figure
Part is waveguide cavity region;
Fig. 5 is the structure diagram of coaxial waveguide turnsile coupler in Fig. 2;
Fig. 6 is the structure diagram of Fig. 2 middle width strip torsional wave guide cards;
Fig. 7 is the structure diagram of frequency diplexer in Fig. 2;
Fig. 8 is C frequency ranges Microwave Net structure diagram in Fig. 2;
Fig. 9 is a kind of structure diagram of C frequency ranges Microwave Net in Fig. 1;
Figure 10 is another structure diagram of C frequency ranges Microwave Net in Fig. 1;
Figure 11~14 are the principle schematics of a variety of feed networks in the utility model embodiment.
Specific embodiment
For the ease of understanding of the those skilled in the art to the art of this patent scheme, meanwhile, in order to make the technology of this patent
Purpose, technical solution and advantageous effect are clearer, and the protection domain of claims is made fully to be supported, below with tool
The form of body case makes the technical solution of this patent further, more detailed description.
As shown in Fig. 1~14, a kind of L/S/C multifrequency feed networks based on coaxial turnsile coupler, including one
The frequency diplexer 106 of broadband torsional wave guide card 102, two of coaxial waveguide turnsile coupler 100, two and a set of C frequency ranges are micro-
Wave network 108, circular waveguide of the turnsile coupler 100 including coaxial waveguide 111, the hollow formation of coaxial waveguide inner wire
112 and two rectangular waveguide ports 113,114 by connecting waveguide, power combing/distributor is connect with coaxial waveguide, it is described
Broadband torsional wave guide card 102 is the double ridged waveguide for having regular length, and the frequency diplexer 106 is three port cavity body structures, comprising
One L/S frequency range common rectangulars waveguide port, 161, L frequency range rectangular waveguides ports 162 and a S frequency rectangular waveguides end
Mouth 163, the common rectangular waveguide port 161 of the frequency diplexer 106 and the rectangular wave of coaxial waveguide turnsile coupler
The connection of port 113,114 is led, there are 45 ° of angles between the longitudinally asymmetric axis of their cross section, in the broadband torsional wave guide card 102
The heart plane coaxial waveguide turnsile Coupler ports 113 or 114 and frequency diplexer that just for the broadband, torsional wave guide card is connect
The equidistant point of angle between port 161.
Further, four equally distributed rectangle coupled waveguides 116 of the coaxial waveguide turnsile coupler 100
Step structure 117 is arranged at bottom, and the step structure 117 is that the right cylinder shape protrusion positioned at coaxial waveguide bottom is coupled in rectangle
It is formed on the bottom surface of waveguide.In addition, protrusion can also be the positive column bodily form of the bottom surface for square, step at this time is straight line
The step of shape.111 inner wire outer of coaxial waveguide also has round table-like impedance matching structure 118, impedance matching structure 118
Axle center is overlapped with the axle center of coaxial waveguide 111, and root edge is connected with step structure 117.
Further, the coaxial waveguide 111 of the coaxial waveguide turnsile coupler 100 transmits L/S two-frequency signals, together
The circular waveguide 112 of the hollow formation of axis waveguide inner wire transmits C frequency band signals.
Further, 102 interior periphery of broadband torsional wave guide card is ridge waveguide 121, on ridge waveguide each long side wall
There are one the ridges 122 of protrusion for tool, and two ridges 122 are symmetrical with respect to ridge waveguide median plane, and broadside and the narrow side difference of ridge waveguide 121 are big
In frequency diplexer common rectangular waveguide port 161 and coaxial waveguide turnsile coupler rectangular waveguide port 113,
114 broadside and narrow side.
Further, it is respectively provided with rounding between the outer conductor metal of coaxial waveguide structure and four rectangle Coupled Passive Waveguide Structures
Corner structure 119.
Further, the frequency diplexer 106 is three port devices, is the form of waveguide E face branch, including one
A common rectangular waveguide port 161 is used for two frequency band signals of input/output L, S, and a rectangular waveguide port 162 is for defeated
Enter/export L frequency band signals, a rectangular waveguide port 163 is used for input/output S frequency band signals.
Further, two L frequency range rectangular waveguides ports 162 of two frequency diplexers 106 are mutually parallel, and two S frequencies
Section rectangular waveguide port 163 is also mutually parallel.
Further, the frequency diplexer 106 is the form of waveguide H faces branch.
Further, respectively in the L frequency range rectangular waveguides port 162 of described two frequency diplexers 106 and S frequency range rectangles
Waveguide port is connected to waveguide bridge and forms four port feed of circular polarisation.
Further, at the L frequency range rectangular waveguide ports of described two frequency diplexers 106 or S frequency range rectangular waveguides end
Mouth is connected to waveguide bridge and forms linear polarization and four port feed of circular polarisation.
Further, C frequency ranges Microwave Net can have circular polarizer 182 so as to form two with orthomode coupler 181
Port circular polarisation or linear polarization both ends port system.
Further, C frequency ranges Microwave Net can be that partition board polarizer forms circular polarisation both ends port system.
Further, C frequency ranges Microwave Net can be four port two-band Microwave Nets, so as to which entire feed forms four frequencies
Section feed system.
Above-described embodiment is applied in four frequently shared L/S/C tri- port feed networks, L-band for 1.197GHz ~
1.61GHz, S frequency range are in the frequency range of 2.0GHz ~ 2.25GHz, and the standing wave of two output rectangular ports is less than 1.25:1, it is seen that this reality
There is excellent electrical property with novel.
It is to be appreciated that be intended merely to facilitate this field common for the above-mentioned narration for this patent specific embodiment
The exemplary description that technical staff understands the technical solution of this patent and enumerates, it is not intended that imply the protection domain of this patent only
It is only limited in this few example, those of ordinary skill in the art can make what is fully understood to the art of this patent scheme completely
Under the premise of, in the form of not paying any creative work, by taking each example cited by this patent combination technique special
Sign replaces some technical characteristics, adds in the modes such as more technical characteristics, obtains more specific embodiments, all these tools
Body embodiment is within the covering scope of this patent claim, and therefore, these new specific embodiments are in this patent
Protection domain within.
In addition, for the purpose for simplifying narration, this patent may also not enumerate some ordinary specific embodiments, this
A little schemes are that those of ordinary skill in the art can expect naturally after the art of this patent scheme is understood, it is clear that this
A little schemes should be also included within the protection domain of this patent.
For the purpose for simplifying narration, above-mentioned each specific embodiment may be only up to this for the extent of disclosure of details
The degree that field technology personnel can voluntarily make a decision, that is, there is no disclosed technical detail for above-mentioned each specific embodiment, this
Field those of ordinary skill completely can be in the case where not paying any creative work, in the abundant of the art of this patent scheme
It under prompting, is completed by the disclosed document of textbook, reference book, paper, patent, audio-visual product etc., alternatively, these are thin
Section is the content that can voluntarily be maked decision according to actual conditions under being generally understood of those of ordinary skill in the art.As it can be seen that
Even if these underground technical details, the open adequacy of the art of this patent scheme will not be impacted.
In short, on the basis of patent specification is combined to the explanation effect of claims protection domain, it is any
Fall into the specific embodiment of this patent claim covering scope, within the protection domain of this patent..
Claims (10)
1. a kind of multifrequency feed network based on coaxial turnsile coupler, which is characterized in that including a turnsile coupling
Clutch, two broadband torsional wave guide cards, two frequency diplexers and a set of Microwave Net, the turnsile coupler include same
Axis waveguiding structure, two rectangular waveguide ports and two groups of power combings of connection rectangular waveguide port and coaxial waveguide structure/
Distribution circuit, two groups of power combing/distribution circuit surround the equally distributed rectangle coupled waveguide of coaxial waveguide structure by four
Structure is connect with the coaxial waveguide structure, and the center of the inner wire metal of the coaxial waveguide structure, which has, is used to form round wave
The cylindrical hole led, the signal frequency of the Microwave Net is higher than biography in coaxial waveguide structure in the turnsile coupler
Defeated signal frequency, the broadband torsional wave guide card are double ridged waveguide structure;The frequency diplexer is three port cavity body structures, should
Three port cavity body structures are used for transmission including a rectangular waveguide port for being used for transmission upper frequency segment signal, one compared with low frequency
The rectangular waveguide port of rate segment signal and a common rectangular wave for being used for transmission upper frequency section and lower frequency segment signal
Port is led, two rectangular waveguide ports of the turnsile coupler pass through a broadband torsional wave guide card and one respectively
The frequency diplexer common rectangular waveguide port connection, the common rectangular waveguide port of the frequency diplexer of interconnection with
In 45 ° of folders between the longitudinally asymmetric axis for the cross section of two waveguides transmitted in the rectangular waveguide port of turnsile coupler
Angle, the central plane turnsile Coupler ports that just torsional wave guide card is connect for the broadband and frequency of the broadband torsional wave guide card
The equidistant point of angle between duplexer port.
2. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that described
It is that round or square the positive column bodily form is raised that the bottom of the coaxial waveguide structure of turnsile coupler, which has there are one bottom surface, institute
The inner wire for stating coaxial waveguide structure is located at the center of the protrusion, and the protrusion extends to four rectangle Coupled Passive Waveguide Structures
It in region and forms one on the bottom surface of each rectangle Coupled Passive Waveguide Structure and extends transversely through entire rectangle Coupled Passive Waveguide Structure
Step structure, step structure in each rectangle Coupled Passive Waveguide Structure relative to the rectangle Coupled Passive Waveguide Structure longitudinal middle vertical plane
Mirror symmetry and smoothly extending on the direction of rectangle Coupled Passive Waveguide Structure;The coaxial waveguide structure inner wire end is also
With the metal frustum cone structure as impedance matching structure, the metal frustum cone structure is coaxial with coaxial waveguide structure and round metal
The bottom surface of platform structure is connected with the top surface of the protrusion.
3. the multifrequency feed network according to claim 2 based on coaxial turnsile coupler, which is characterized in that described
The top surface diameter of metal frustum cone structure is greater than or equal to the diameter of the coaxial waveguide structure inner wire metal.
4. the multifrequency feed network according to claim 2 based on coaxial turnsile coupler, which is characterized in that described
The junction of the waveguide cavity outer wall of coaxial waveguide structure and the waveguide cavity upper wall of four rectangle Coupled Passive Waveguide Structures is respectively provided with rounding
Corner structure.
5. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that described
Broadband torsional wave guide card is respectively to have in two long side walls with rectangular inner cavity and rectangular inner cavity there are one the ridge waveguide of the ridge of protrusion,
For two ridges relative to the median plane mirror symmetry of ridge waveguide, broadside and the narrow side of ridge waveguide are respectively greater than the public of frequency diplexer
Rectangular waveguide port and the broadside and narrow side of the rectangular waveguide port of turnsile coupler.
6. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that described
Three port devices of the frequency diplexer for waveguide E face branch or waveguide H faces branch are used for input/output compared with low frequency including one
The rectangular waveguide port of rate segment signal, a rectangular waveguide port for being used for input/output intermediate frequency segment signal and one
For input/output it is high, in two frequency band signals common rectangular waveguide port.
7. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that two
The low-frequency rectangular waveguide port of frequency diplexer is mutually parallel, and two intermediate frequency section rectangular waveguide ports are also mutually parallel.
8. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that two
Waveguide bridge is connected in the low-frequency rectangular waveguide port of frequency diplexer and high frequency rectangular waveguide port, so as to form entelechy
Change four port feeds.
9. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that two
Waveguide bridge is connected in the low-frequency rectangular waveguide port of frequency diplexer or high frequency rectangular waveguide port, so as to be formed while had
Four port feeds of circular polarisation and linear polarization.
10. the multifrequency feed network according to claim 1 based on coaxial turnsile coupler, which is characterized in that institute
Microwave Net is stated as single-frequency Microwave Net or double frequency Microwave Net.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108123200A (en) * | 2017-12-18 | 2018-06-05 | 中国电子科技集团公司第五十四研究所 | A kind of multifrequency feed network based on coaxial turnsile coupler |
CN114124243A (en) * | 2022-01-27 | 2022-03-01 | 电子科技大学 | High-isolation terahertz orthogonal mode isolation duplexer easy to machine |
-
2017
- 2017-12-18 CN CN201721765468.5U patent/CN207602764U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108123200A (en) * | 2017-12-18 | 2018-06-05 | 中国电子科技集团公司第五十四研究所 | A kind of multifrequency feed network based on coaxial turnsile coupler |
CN114124243A (en) * | 2022-01-27 | 2022-03-01 | 电子科技大学 | High-isolation terahertz orthogonal mode isolation duplexer easy to machine |
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