CN107978832A - A kind of broadband coaxial waveguide coupler - Google Patents
A kind of broadband coaxial waveguide coupler Download PDFInfo
- Publication number
- CN107978832A CN107978832A CN201711361588.3A CN201711361588A CN107978832A CN 107978832 A CN107978832 A CN 107978832A CN 201711361588 A CN201711361588 A CN 201711361588A CN 107978832 A CN107978832 A CN 107978832A
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- coaxial waveguide
- waveguide structure
- waveguide
- coaxial
- coupled passive
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- 239000002184 metal Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000010287 polarization Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
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- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of broadband coaxial waveguide coupler, belong to wireless communication technology field.It includes coaxial waveguide structure, impedance matching structure and four rectangle Coupled Passive Waveguide Structures, the bottom of coaxial waveguide structure has the protrusion of a positive column bodily form, the protrusion extends in four rectangle Coupled Passive Waveguide Structure regions and a ledge structure for extending transversely through whole rectangle Coupled Passive Waveguide Structure is formed on the bottom surface of each rectangle Coupled Passive Waveguide Structure, impedance matching structure is the metal frustum cone structure positioned at coaxial waveguide structure inner wire end, and the bottom surface of the metal frustum cone structure is connected with raised top surface.Excellent electrical property of the present invention, processing is simple, can be excellent in the index such as phase polarization separation, standing wave, isolation, Insertion Loss such as realization nearly in a frequency multiplication, it can use in three frequency community antenna system of the frequency ranges such as L/S/C, C/X/Ku, K/Ka/Q, be a kind of important improvement to the prior art.
Description
Technical field
The present invention relates to wireless communication, navigation observing and controlling and radio astronomy technical field, a kind of broadband coaxial ripple is particularly related to
Lead coupler.
Background technology
Generally used in field transmit-receive sharings such as navigation observing and controlling, satellite communications, and with satellite frequency spectrum resource
Increase, double frequency shared or multifrequency community antenna can realize that an antenna is used in two in the case where only increasing a small amount of cost
Even more than frequency range, when especially antenna aperture is larger, this mode can significantly reduce antenna system cost, while reduce soil
Usable floor area, facilitates the laying of user site.
In addition, the development of the increasingly ripe and coaxial turnsile coupler technologies with electromagnetic simulation software, coaxially
The available bandwidth of turnsile coupler coupled waveguide port is more and more wider, it is already possible to meets that the bandwidth that two-band uses will
Ask, since its coaxial inner conductor is hollow, the signal that coaxial waveguide is used for transmission higher frequency range can be formed, therefore, can be facilitated
Ground construct three frequency share feed system, and it is simple in structure, be not necessary to debug, what is used in antenna feed system is more and more.
For example, the feed shared frequently in the L/S/C tri- that navigation, communication, measurement and control area need, can pass in coaxial waveguide
Defeated L/S frequency band signals, and C frequency band signals are transmitted by hollow the formed circular waveguide of coaxial waveguide inner wire.
But coaxial turnsile coupler of the prior art is also asked there are electric property is bad in broader bandwidth
Topic.
The content of the invention
In view of this, the present invention proposes a kind of broadband coaxial waveguide coupler, it can significantly improve existing coaxial waveguide
Coupler frequency band low side and high-end matching properties, and broadening bandwidth.
Based on above-mentioned purpose, technical solution provided by the invention is：
A kind of broadband coaxial waveguide coupler, it includes coaxial waveguide structure, impedance matching structure and four positioned at described same
Axis waveguiding structure lower part and surround the equally distributed rectangle Coupled Passive Waveguide Structure of the coaxial waveguide structure, the coaxial waveguide knot
The center of the inner wire metal of structure has the cylindrical hole for being used for forming circular waveguide；
The bottom of the coaxial waveguide structure has a bottom surface for circular or square positive column bodily form protrusion, the on-axis wave
The inner wire of guide structure is located at the raised center, and the protrusion is extended in the region of four rectangle Coupled Passive Waveguide Structures simultaneously
A ledge structure for extending transversely through whole rectangle Coupled Passive Waveguide Structure is formed on the bottom surface of each rectangle Coupled Passive Waveguide Structure,
Ledge 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 impedance matching structure is positioned at the metal frustum cone structure of coaxial waveguide structure inner wire end, the metal round platform knot
Structure is coaxial with coaxial waveguide structure and the top surface diameter of metal frustum cone structure is more than the diameter of coaxial waveguide structure inner wire metal,
The bottom surface of the metal frustum cone structure is connected with the raised top surface.
Optionally, the waveguide cavity outer wall of the coaxial waveguide structure and the waveguide cavity upper wall of four rectangle Coupled Passive Waveguide Structures
Junction be respectively provided with rounding corner structure.
From narration above can be seen that the beneficial effects of the present invention are：
1st, the present invention adds ledge structure in the bottom of four rectangle coupled waveguides of coaxial waveguide orthomode coupler, so that
Coaxial waveguide orthomode coupler frequency band low side and high-end matching properties are significantly improved, and extends coaxial waveguide orthogonal mode coupling
The available bandwidth of clutch.
2nd, the present invention proposes a kind of coaxial turnsile connector wideband structural, is returned in 1.19GHz ~ 2.27GHz frequency bands
Ripple loss is less than -15dB, than existing structure broadening 121.8MHz, meanwhile, turnsile coupler standing wave, insertion loss be smaller,
Port isolation is good.
3rd, orthomode coupler of the present invention can be used for three frequency sharing systems of L/S/C frequency ranges, 1.25GHz ~
In 2.25GHz frequency ranges, coaxial waveguide output rectangular waveguide reflection coefficient of port loss is less than -17.8dB;In 1.19GHz ~ 2.25GHz
In frequency range, coaxial waveguide output rectangular waveguide reflection coefficient of port loss is less than -15dB.
In short, excellent electrical property of the present invention, processing is simple, the phase polarization separation such as can realize nearly in a frequency multiplication,
The indexs such as standing wave, isolation, Insertion Loss are excellent, can use in three frequency common antenna system of the frequency ranges such as L/S/C, C/X/Ku, K/Ka/Q
System, is a kind of important improvement to the prior art.
Brief 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 some 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 obvious knot in these attached drawings of this patent
, it is necessary to which to carry out comprehensive descision be this on earth with reference to the narration of the common knowledge and this patent other parts of this area when structure is not consistent
There are exist to draw mistake in clerical mistake, or attached drawing for the word segment of patent.Especially, 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, these are new in the case where not paying any creative work
Technical solution representated by attached drawing is still within the protection domain of this patent.
Fig. 1 is a kind of simulation model schematic diagram of middle width strip coaxial waveguide coupler of the embodiment of the present invention, is shown in figure
It is the structure of waveguide cavity；
Fig. 2 be Fig. 1 it is a kind of to the fill part in sectional view, figure be waveguide cavity region；
Fig. 3 is a kind of direction view of Fig. 1；
Fig. 4 is the simulation model schematic diagram for the orthomode coupler for using middle width strip coaxial waveguide coupler of the embodiment of the present invention,
The structure of waveguide cavity is shown in figure；
Fig. 5 is the return loss analogous diagram of a rectangular waveguide port of Fig. 4.
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 beneficial effect are clearer, and the protection domain of claims is fully supported, below with tool
The form of body case makes the technical solution of this patent further, more detailed description.
Fig. 1~3 be a kind of broadband coaxial waveguide coupler in waveguide schematic diagram, the broadband coaxial waveguide coupler bag
Include：For forming the coaxial waveguide structure of coaxial waveguide 1, four coupling rectangular waveguide knots for being used to form coupling rectangular waveguide 2
Structure, impedance matching structure（Corresponding to cavity wall structure 3）With ledge structure（Corresponding to cavity wall structure 4）, four coupling rectangular waveguides
Structure is located at the lower part of coaxial waveguide structure, and is uniformly distributed by axis of coaxial waveguide structure.
Specifically, ledge structure by a cylindrical protrusions of coaxial waveguide structure bottom in each rectangle coupled waveguide
Formed on the bottom surface of structure, the protrusion is coaxial with coaxial waveguide structure.In addition, protrusion can also be bottom surface for square just
Cylinder shape, step at this time are the step of linear.
Impedance matching structure is positioned at the metal frustum cone structure of coaxial waveguide structure inner wire end, the metal frustum cone structure
Coaxial with coaxial waveguide structure and metal frustum cone structure top surface diameter is more than the diameter of coaxial waveguide structure inner wire metal, gold
The bottom surface for belonging to frustum cone structure is connected with the raised top surface.
In addition, can also there be rounded corner knot in the junction of the outer conductor of coaxial waveguide structure and four coupling rectangular waveguiding structures
Structure（Corresponding to cavity wall structure 5）.
Fig. 4 is using the waveguide schematic diagram of the orthomode coupler of above-mentioned broadband coaxial waveguide coupler, the orthogonal mode coupling
Clutch is connected with two power combing/distributors by waveguide pipeline（Corresponding to cavity wall structure 6 and 7）, can be applied to three frequencies altogether
With in antenna system.
Fig. 5 is a kind of above-mentioned specific embodiment this programme and existing structure rectangle in 1.15GHz ~ 2.3GHz frequency ranges
The return loss simulation curve of waveguide port, wherein, axis of abscissas is frequency, unit：GHz；Axis of ordinates is return loss, single
Position：DB, the simulation result that block curve is lost for a rectangular waveguide reflection coefficient of port of this programme coaxial waveguide coupler, curve
Upper mark 1,2 is respectively low frequency, the high frequency frequency point of return loss -15dB time-frequency bands, and mark 3,4 marks 1.25GHz and 2.25GHz respectively
Two frequency points, the simulation result that dashed curve is lost for a rectangular waveguide reflection coefficient of port of existing structure coaxial waveguide coupler,
Mark 5,6 is respectively low frequency, the high frequency frequency point of return loss -15dB time-frequency bands on curve.
As it can be seen that the bandwidth increase of return loss -15dB of the present invention is more than 100 million, performance is obviously improved.
It is to be appreciated that to be intended merely to facilitate this area common for the above-mentioned narration for this patent 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
Only it is 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, replace some technical characteristics, add the modes such as more technical characteristics, obtains more embodiments, all these tools
Body embodiment is within the covering scope of this patent claim, and therefore, these new 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 it understanding of the art of this patent scheme, 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 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, i.e. there is no disclosed ins and outs for above-mentioned each 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
Under prompting, 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 that of those of ordinary skill in the art.As it can be seen that
Even if these underground ins and outs, the open adequacy of the art of this patent scheme will not be impacted.
In short, on the basis of explanation effect of the patent specification to claims protection domain is combined, it is any
Fall into the specific embodiment of this patent claim covering scope, within the protection domain of this patent..
Claims (2)
1. a kind of broadband coaxial waveguide coupler, it is characterised in that including coaxial waveguide structure, impedance matching structure and four
Positioned at the coaxial waveguide structure lower part and the equally distributed rectangle Coupled Passive Waveguide Structure of the coaxial waveguide structure is surrounded, it is described
The center of the inner wire metal of coaxial waveguide structure has the cylindrical hole for being used for forming circular waveguide；
The bottom of the coaxial waveguide structure has a bottom surface for circular or square positive column bodily form protrusion, the on-axis wave
The inner wire of guide structure is located at the raised center, and the protrusion is extended in the region of four rectangle Coupled Passive Waveguide Structures simultaneously
A ledge structure for extending transversely through whole rectangle Coupled Passive Waveguide Structure is formed on the bottom surface of each rectangle Coupled Passive Waveguide Structure,
Ledge 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 impedance matching structure is positioned at the metal frustum cone structure of coaxial waveguide structure inner wire end, the metal round platform knot
Structure is coaxial with coaxial waveguide structure and the top surface diameter of metal frustum cone structure is more than the diameter of coaxial waveguide structure inner wire metal,
The bottom surface of the metal frustum cone structure is connected with the raised top surface.
2. broadband coaxial waveguide coupler according to claim 1, it is characterised in that the waveguide of the coaxial waveguide structure
The junction of cavity outer wall and the waveguide cavity upper wall of four rectangle Coupled Passive Waveguide Structures is respectively provided with rounding corner structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361588.3A CN107978832A (en) | 2017-12-18 | 2017-12-18 | A kind of broadband coaxial waveguide coupler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711361588.3A CN107978832A (en) | 2017-12-18 | 2017-12-18 | A kind of broadband coaxial waveguide coupler |
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| CN201711361588.3A Pending CN107978832A (en) | 2017-12-18 | 2017-12-18 | A kind of broadband coaxial waveguide coupler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116544667A (en) * | 2023-03-13 | 2023-08-04 | 西安电子科技大学 | Multichannel feed source structure and antenna system |
| WO2023246432A1 (en) * | 2022-06-22 | 2023-12-28 | 华为技术有限公司 | Cross-shaped feed connector, ortho-mode transducer and antenna |
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| CN203481354U (en) * | 2013-10-25 | 2014-03-12 | 西南交通大学 | Power divider for dividing over-molded coaxial waveguide into two rectangular waveguides |
| CN104347922A (en) * | 2014-10-30 | 2015-02-11 | 哈尔滨工业大学 | Coupling device for coaxial waveguide wideband orthogonal mode |
| CN104934672A (en) * | 2015-06-25 | 2015-09-23 | 常州吉赫射频电子技术有限公司 | Novel broadband coaxial waveguide orthomode coupler based on turnstile structure |
| CN105762476A (en) * | 2016-04-12 | 2016-07-13 | 深圳市华讯方舟卫星通信有限公司 | Radial waveguide combiner/divider |
| CN106410350A (en) * | 2016-11-21 | 2017-02-15 | 国网山东省电力公司电力科学研究院 | Multipath Ka-waveband radial waveguide power distribution/synthesis network and method and application thereof |
| CN106450638A (en) * | 2016-10-17 | 2017-02-22 | 中国电子科技集团公司第五十四研究所 | Compact orthomode coupler |
| CN106992348A (en) * | 2017-04-14 | 2017-07-28 | 电子科技大学 | The broadband radial waveguide power divider/synthesizer of one species cycloid transition structure |
| CN207517842U (en) * | 2017-12-18 | 2018-06-19 | 中国电子科技集团公司第五十四研究所 | A kind of broadband coaxial waveguide coupler |
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2017
- 2017-12-18 CN CN201711361588.3A patent/CN107978832A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203481354U (en) * | 2013-10-25 | 2014-03-12 | 西南交通大学 | Power divider for dividing over-molded coaxial waveguide into two rectangular waveguides |
| CN104347922A (en) * | 2014-10-30 | 2015-02-11 | 哈尔滨工业大学 | Coupling device for coaxial waveguide wideband orthogonal mode |
| CN104934672A (en) * | 2015-06-25 | 2015-09-23 | 常州吉赫射频电子技术有限公司 | Novel broadband coaxial waveguide orthomode coupler based on turnstile structure |
| CN105762476A (en) * | 2016-04-12 | 2016-07-13 | 深圳市华讯方舟卫星通信有限公司 | Radial waveguide combiner/divider |
| CN106450638A (en) * | 2016-10-17 | 2017-02-22 | 中国电子科技集团公司第五十四研究所 | Compact orthomode coupler |
| CN106410350A (en) * | 2016-11-21 | 2017-02-15 | 国网山东省电力公司电力科学研究院 | Multipath Ka-waveband radial waveguide power distribution/synthesis network and method and application thereof |
| CN106992348A (en) * | 2017-04-14 | 2017-07-28 | 电子科技大学 | The broadband radial waveguide power divider/synthesizer of one species cycloid transition structure |
| CN207517842U (en) * | 2017-12-18 | 2018-06-19 | 中国电子科技集团公司第五十四研究所 | A kind of broadband coaxial waveguide coupler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246432A1 (en) * | 2022-06-22 | 2023-12-28 | 华为技术有限公司 | Cross-shaped feed connector, ortho-mode transducer and antenna |
| CN116544667A (en) * | 2023-03-13 | 2023-08-04 | 西安电子科技大学 | Multichannel feed source structure and antenna system |
| CN116544667B (en) * | 2023-03-13 | 2023-09-22 | 西安电子科技大学 | Multichannel feed source structure and antenna system |
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Application publication date: 20180501 |