CN108123202A - A kind of broadband equiphase exports orthomode coupler - Google Patents
A kind of broadband equiphase exports orthomode coupler Download PDFInfo
- Publication number
- CN108123202A CN108123202A CN201711361605.3A CN201711361605A CN108123202A CN 108123202 A CN108123202 A CN 108123202A CN 201711361605 A CN201711361605 A CN 201711361605A CN 108123202 A CN108123202 A CN 108123202A
- Authority
- CN
- China
- Prior art keywords
- waveguide
- power combing
- turnsile
- distributor
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000003786 synthesis reaction Methods 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000010287 polarization Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003550 marker 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
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a kind of broadband equiphases to export orthomode coupler, belongs to wireless communication technology field.It includes turnsile connector and two groups of power combing/distribution circuit, and two groups of power combing/distribution circuit realize their radial tubes section staggering at crossover location by the difference in length on tube axial section.Excellent electrical property of the present invention, processing is simple, it the phases polarization separation such as can realize in a nearly frequency multiplication, the indexs such as standing wave, isolation, Insertion Loss are excellent, it can use in the frequency band double-frequencies such as L/S, S/C, X/Ku, Ku/Ka are public or the frequency ranges such as L, S, C, X, Ku, Ka receive and dispatch common antenna system, 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 fields, particularly relate to a kind of broadband equiphase
Export orthomode coupler.
Background technology
It has generally been used in fields 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 occupation mode can significantly reduce antenna system cost, reduce simultaneously
Land use area facilitates the laying of user site.
In addition, with increasingly ripe, the development of turnsile coupler technologies of electromagnetic simulation software, turnsile coupling
Device is not necessary to the features such as debugging and is used in antenna feed system more and more with its bandwidth, simple in structure.In circular polarisation
When, turnsile coupler two paths of signals access electrical length is equal, that is, it is a basic requirement to export equiphase, still, existing
There is the problems such as complicated there are narrower bandwidth or equiphase access waveguiding structure in technology, not easy to be processed.
The content of the invention
In view of this, the present invention proposes a kind of broadband equiphase output orthomode coupler, and simple pipeline is used only
Turnsile connector and power combing/distributor are connected, can realize that the phase of two input/output ports is equal, there is knot
Structure is simple, is compact, easy to the features such as processing, excellent electrical properties.
Based on above-mentioned purpose, technical solution provided by the invention is：
A kind of broadband equiphase exports orthomode coupler, and including turnsile connector, the turnsile connector includes circle
Waveguiding structure, impedance matching structure and four surround the equally distributed rectangle Coupled Passive Waveguide Structure of the Circular waveguides, often
One group of power combing/distribution being located at below the turnsile connector is equipped between alternate rectangle Coupled Passive Waveguide Structure
Pipeline, the power combing/distribution circuit include power combing/distributor of three port and two be generally aligned in the same plane in
And the connecting line of rectangle is surrounded, the power combing/distributor includes a straight wave guide structure, a coupled chamber and two
A mirror-symmetrical 90 ° of E faces waveguide bend structure, straight wave guide structure and the turnsile of the power combing/distributor connect
The port of the Circular waveguides of head is towards on the contrary, the straight wave guide structure of the power combing/distributor connects with the turnsile
The place straight line of the Circular waveguides of head is mutually parallel and compared with the central point of rectangle pipeline, and two groups of power combings/point
The vertical range of coupled chamber with power combing/distributor in pipeline to the Circular waveguides of turnsile connector is equal, institute
The one end for stating connecting line connects a rectangle Coupled Passive Waveguide Structure, and the other end connects the power combing/distributor
One waveguide bend structure, every connecting line is by the identical straight wave guide structure in three sections and two 90 ° of E faces waveguide bend knots
Structure forms, and two groups of power combing/distribution circuit are axis in differing 90 ° of rotational symmetry relation using the axis of turnsile connector,
And two groups of power combing/distribution circuit have difference in length so that their radial tubes section is intersecting on tube axial section
Stagger at position.
Optionally, the connecting line is the U-shaped corner cut waveguide bend element in E faces.
Optionally, the narrow side length of waveguide and the narrow side of waveguide in the connecting line in the rectangle Coupled Passive Waveguide Structure
Equal length, in the rectangle Coupled Passive Waveguide Structure width edge length of waveguide be less than waveguide in the connecting line broadside it is long
Degree.
Optionally, it is respectively provided with down in the turnsile connector between Circular waveguides and four rectangle Coupled Passive Waveguide Structures
Rounded structure, so that Circular waveguides have rounded corner with the waveguide in rectangle Coupled Passive Waveguide Structure in joint；Described ten
The impedance matching structure of word revolving door connector be in turnsile connector Circular waveguides end and with rectangle coupled waveguide knot
The metal step that structure is connected, the metal step include at least four layers and tire out the coaxial cylinders that folded diameter successively decreases, the metal platform
The axis of rank and the circular waveguide axis of Circular waveguides in turnsile connector coincide.
From narration above as can be seen that the advantageous effect of technical solution of the present invention is：
1st, connecting line of the invention only includes two waveguide bend structures and three sections of straight wave guide structures, two groups of power combing/distribution
Radial tubes section staggering at crossover location, connecting line are only realized by the difference in length of axis line segments between pipeline
Above without special bridge-like structure, whole device is simple in structure, compact, easy to process.
2nd, the present invention proposes a kind of turnsile connector ultra-wide band structure, and relative bandwidth can reach 64%, and cross turns
Door coupler standing wave, insertion loss be smaller, port isolation is good.
3rd, orthomode coupler of the present invention can be used for L/S double frequency shareds, and in 1.17GHz ~ 2.28GHz frequency ranges, two is defeated
The return loss of exit port is less than -21.7dB, i.e. standing wave is less than 1.18:1；L frequency ranges and S frequency ranges are divided to two sections in use, in L-band
（1.19GHz~1.65GHz）With S frequency ranges（2.0GHz~2.25GHz）Interior, the return loss of two output ports is less than -23dB.
In short, excellent electrical property of the present invention, processing is simple, the phases polarization separation such as can realize in a nearly frequency multiplication,
The indexs such as standing wave, isolation, Insertion Loss are excellent, can use in frequency ranges such as L/S, S/C, L/S/C, C/X, X/Ku, C/X/Ku, Ku/Ka
Double frequency shared, three are frequently one to the prior art in the antenna system of frequency ranges transmit-receive sharing such as shared or L, S, C, X, Ku, Ka
Kind important improvement.
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 apparent 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 field when structure is not consistent
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 structure diagram of middle width strip of embodiment of the present invention equiphase output orthomode coupler；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the front view of Fig. 1；
Fig. 4 is the size relationship figure of two groups of power combing/distribution circuit in Fig. 1；
Fig. 5 is a kind of simulation model schematic diagram of middle width strip of embodiment of the present invention equiphase output orthomode coupler, institute in figure
It is shown as the structure of waveguide cavity；
Fig. 6 is a kind of sectional view of Fig. 5, and the fill part in Fig. 6 represents waveguide cavity region；
Fig. 7 is middle width strip of embodiment of the present invention equiphase output orthomode coupler two rectangles in 1.17GHz ~ 2.28GHz
The standing wave analogous diagram of waveguide port.
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 figures 1-4, a kind of broadband equiphase output orthomode coupler, including turnsile connector 1, U-bend ripple
Guiding element 1, U-bend waveguide component 23, U-bend waveguide component 34, U-bend waveguide component 45, power combing/distributor
1 with power combing/distributor 27, U-bend waveguide component 1, U-bend waveguide component 23, U-bend waveguide component 34, U
Shape waveguide bend element 45 is as the connecting line between turnsile connector and power combing/distributor, U-bend waveguide member
Part 1, U-bend waveguide component 23 are connected with power combing/distributor 1, U-bend waveguide component 34, U-bend waveguide component
45 are connected with power combing/distributor 27, and two U-bend waveguide components surround a rectangle, and power combing/distributor and
The Circular waveguides 1-1 of turnsile coupler 1 is closed in a manner of mutually staggering compared with the central point of rectangle pipeline in symmetrical
System, the vertical range of the coupled chamber of power combing/distributor 1 and power combing/distributor 27 to turnsile connector 1
It is equal.
Specifically, U-bend waveguide component 1, U-bend waveguide component 23, U-bend waveguide component 34, U-bend ripple
The inner section of guiding element 45 is identical, and corner is 90 ° of E faces waveguide bends, one 2 vertical waveguide section 2-2 of U-bend waveguide component
Center to centre distance and the 23 vertical waveguide section 3-2 of U-bend waveguide component of 1 Circular waveguides 1-1 of turnsile connector
The centre distance of center to power combing/distributor 1 is equal, and the length of waveguide segment 4-1 is equal to U on U-bend waveguide component 34
The length of waveguide segment 2-1 on shape waveguide bend element 1,34 times waveguide segment 4-3 length of U-bend waveguide component are equal to U-bend waveguide
One 2 times waveguide segment 2-3 length of element, waveguide segment 5-1 length is equal on U-bend waveguide component 23 on U-bend waveguide component 45
Waveguide segment 3-1 length, 45 times waveguide segment 5-3 length of U-bend waveguide component are equal to 23 times waveguide segment 3-3 of U-bend waveguide component
Length, the distance at 34 vertical waveguide section 4-2 centers of U-bend waveguide component to 1 Circular waveguides 1-1 centers of turnsile connector
It is equal with the distance at U-bend waveguide component 45 vertical waveguide section 5-2 centers to 27 center of power combing/distributor.
In addition, power combing/distributor 1 by input/output straight wave guide structure 6-1, two waveguide bend structure 6-2 and
Coupled chamber 6-3 is formed, and power combing/distributor 27 is by input/output straight wave guide structure 7-1, two waveguide bend structure 7-2
And coupled chamber 7-3 is formed, the sectional dimension of input/output straight wave guide structure 6-1 and input/output straight wave guide structure 7-1
With length all same, coupled chamber 6-3 is identical with the structure of coupled chamber 7-3, waveguide bend structure 6-2, waveguide bend structure 7-2 with
The sectional dimension of U-bend waveguide component is identical.
The narrow side length of four rectangle Coupled Passive Waveguide Structures is identical with the narrow side length of U-bend waveguide component, and broadside is long
Degree is less than the width edge length of U-bend waveguide component.
As it can be seen in figures 5 and 6, turnsile connector further includes impedance matching structure 9, four Coupled Passive Waveguide Structures and circular waveguide
There is rounding corner structure, so that the waveguide in Circular waveguides and rectangle Coupled Passive Waveguide Structure is in joint between structure 1-1
With rounded corner 8.Impedance matching structure 9 be in turnsile connector Circular waveguides end and with rectangle coupled waveguide knot
The metal step that structure is connected, metal step include four layers and tire out the coaxial cylinders that folded diameter successively decreases, the axis of metal step and ten
The circular waveguide axis of Circular waveguides coincides in word revolving door connector.
In the example, fillet 8 can widening frequency band, can particularly improve the matching properties of frequency range high frequency treatment.
Fig. 7 is above-mentioned broadband equiphase output orthomode coupler two rectangular waveguide ends in 1.17GHz~2.25GHz
Mouthful standing wave graph, wherein, axis of abscissas is frequency, unit：GHz；Axis of ordinates is return loss, unit：DB, dot mark
The block curve of note is the return loss simulation result of a rectangular port, and the dashed curve of triangular marker is another rectangle
The return loss simulation result of port.
It can be seen that the performance of the present invention is very excellent.
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 this patent scheme and enumerates, does not imply that the protection domain of this patent is limited solely to
In this few example, those of ordinary skill in the art completely can on the premise of making and fully understanding to the art of this patent scheme,
In the form of not paying any creative work, by taking each example cited by this patent combination technique feature, replacing
Some technical characteristics add in more technical characteristics etc. mode, obtain more specific embodiments, all these specific implementations
Mode is within the covering scope of patent claims book, and therefore, these new specific embodiments also should be 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 also be included within the protection domain of this patent.
For the purpose for simplifying narration, above-mentioned each specific embodiment may only up to for the extent of disclosure of technical detail
The degree that can voluntarily make a decision to those skilled in the art, i.e. there is no disclosed technical detail for above-mentioned specific embodiment,
Those of ordinary skill in the art completely can be in the case where not paying any creative work, in filling for the art of this patent scheme
Divide under prompting, completed by means of the disclosed document of textbook, reference book, paper, patent, audio-visual product etc., alternatively, this
A little details are the contents 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 patent claims book covering scope, within the protection domain of this patent..
Claims (4)
1. a kind of broadband equiphase exports orthomode coupler, which is characterized in that including turnsile connector, the turnsile
Connector surrounds the equally distributed rectangle coupled wave of the Circular waveguides including Circular waveguides, impedance matching structure and four
Guide structure is equipped with one group of power being located at below the turnsile connector between the alternate rectangle Coupled Passive Waveguide Structure of each two
Synthesis/distribution circuit, the power combing/distribution circuit includes power combing/distributor of three port and two are located at
In same plane and the connecting line of rectangle is surrounded, the power combing/distributor includes a straight wave guide structure, a coupling
Cavity and two mirror-symmetrical 90 ° of E faces waveguide bend structures, the straight wave guide structure of the power combing/distributor with it is described
The ports of the Circular waveguides of turnsile connector towards on the contrary, the straight wave guide structure of the power combing/distributor with it is described
The place straight line of the Circular waveguides of turnsile connector is mutually parallel and compared with the central point of rectangle pipeline, two groups of work(
In rate synthesis/distribution circuit the coupled chamber of power combing/distributor to the Circular waveguides of turnsile connector it is vertical away from
From equal, one end of the connecting line connects a rectangle Coupled Passive Waveguide Structure, the other end connect the power combing/
One waveguide bend structure of distributor, every connecting line is by the identical straight wave guide structure in three sections and two 90 ° of E faces
Waveguide bend structure composition, two groups of power combing/distribution circuit are axis in 90 ° of rotation pair of difference using the axis of turnsile connector
Title relation, and two groups of power combing/distribution circuit have difference in length so that their radial line on tube axial section
Section staggers at crossover location.
2. broadband equiphase according to claim 1 exports orthomode coupler, which is characterized in that the connecting line is
The U-shaped corner cut waveguide bend element in E faces.
3. broadband equiphase according to claim 1 exports orthomode coupler, which is characterized in that the rectangle coupled wave
The narrow side length of waveguide in guide structure and the narrow side equal length of waveguide in the connecting line, the rectangle Coupled Passive Waveguide Structure
The width edge length of middle waveguide is less than the width edge length of waveguide in the connecting line.
4. broadband equiphase according to claim 1 exports orthomode coupler, which is characterized in that the turnsile connects
In head rounding corner structure is respectively provided between Circular waveguides and four rectangle Coupled Passive Waveguide Structures；The resistance of the turnsile connector
Anti- mating structure is Circular waveguides end and the metal platform being connected with rectangle Coupled Passive Waveguide Structure in turnsile connector
Rank, the metal step include at least four layers and tire out the coaxial cylinders that folded diameter successively decreases, the axis and cross of the metal step
The circular waveguide axis of Circular waveguides coincides in revolving door connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361605.3A CN108123202A (en) | 2017-12-18 | 2017-12-18 | A kind of broadband equiphase exports orthomode coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361605.3A CN108123202A (en) | 2017-12-18 | 2017-12-18 | A kind of broadband equiphase exports orthomode coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108123202A true CN108123202A (en) | 2018-06-05 |
Family
ID=62230073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711361605.3A Pending CN108123202A (en) | 2017-12-18 | 2017-12-18 | A kind of broadband equiphase exports orthomode coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108123202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695600A (en) * | 2018-07-06 | 2018-10-23 | 中国电子科技集团公司第五十四研究所 | A kind of broadband circular polarizer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299424A (en) * | 2011-05-31 | 2011-12-28 | 西安空间无线电技术研究所 | Dual-frequency dual-polarized feed assembly in C frequency band |
| 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 |
| CN204834895U (en) * | 2015-08-18 | 2015-12-02 | 中国电子科技集团公司第五十四研究所 | Four port feed network of ku broadband linear polarization |
| US20170170570A1 (en) * | 2015-12-11 | 2017-06-15 | Thales | Compact bipolarization excitation assembly for a radiating antenna element and compact array comprising at least four compact excitation assemblies |
-
2017
- 2017-12-18 CN CN201711361605.3A patent/CN108123202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299424A (en) * | 2011-05-31 | 2011-12-28 | 西安空间无线电技术研究所 | Dual-frequency dual-polarized feed assembly in C frequency band |
| 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 |
| CN204834895U (en) * | 2015-08-18 | 2015-12-02 | 中国电子科技集团公司第五十四研究所 | Four port feed network of ku broadband linear polarization |
| US20170170570A1 (en) * | 2015-12-11 | 2017-06-15 | Thales | Compact bipolarization excitation assembly for a radiating antenna element and compact array comprising at least four compact excitation assemblies |
Non-Patent Citations (2)
| Title |
|---|
| 孙立杰等: "Ka波段宽带正交模耦合器设计", 现代雷达, no. 06 * |
| 王进等: "宽频带四端口馈源网络系统设计", 电子与信息学报, no. 06, pages 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695600A (en) * | 2018-07-06 | 2018-10-23 | 中国电子科技集团公司第五十四研究所 | A kind of broadband circular polarizer |
| CN108695600B (en) * | 2018-07-06 | 2024-02-02 | 中国电子科技集团公司第五十四研究所 | Broadband circular polarizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102763269B (en) | Use the phase shifter of substrate integrated waveguide | |
| CN104466328B (en) | A kind of balance/unbalance formula filters power splitter | |
| CN108123200A (en) | A kind of multifrequency feed network based on coaxial turnsile coupler | |
| CN104934672A (en) | Novel broadband coaxial waveguide orthomode coupler based on turnstile structure | |
| US8482362B1 (en) | Combiner/divider with interconnection structure | |
| CN104966881A (en) | Dual-band balanced power splitter | |
| CN103022619A (en) | Microwave phase inverter based one-to-three power divider and power dividing method thereof | |
| CN207517838U (en) | A kind of broadband equiphase exports orthomode coupler | |
| CN108123202A (en) | A kind of broadband equiphase exports orthomode coupler | |
| CN101465457B (en) | High power wideband four-way power distributor and synthesizer | |
| CN108110392A (en) | A kind of broadband torsional wave guide structure | |
| CN207602764U (en) | A kind of multifrequency feed network based on coaxial turnsile coupler | |
| CN107959098A (en) | A kind of matched coaxial waveguide orthomode coupler of truncated cones | |
| CN113659300A (en) | Broadband four-power divider | |
| CN109638401A (en) | A kind of Wilkinson power divider of broadband not equal part | |
| CN207517840U (en) | A kind of coaxial waveguide orthomode coupler | |
| CN106797064A (en) | Micro-strip multiplexer | |
| CN107978832A (en) | A kind of broadband coaxial waveguide coupler | |
| CN103346373A (en) | Lumped-parameter broadband 180-degree coupler | |
| CN207517837U (en) | A kind of four port feed networks based on turnsile coupler | |
| CN103338017A (en) | Lumped-parameter wideband 180-degree coupler with harmonic suppression function | |
| CN108123199A (en) | The coaxial waveguide orthomode coupler of step is arranged at a kind of bottom | |
| EP3447840A1 (en) | Quasi-circulator using asymmetric directional coupler | |
| CN207517842U (en) | A kind of broadband coaxial waveguide coupler | |
| CN207517839U (en) | A kind of matched coaxial waveguide orthomode coupler of truncated cones |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |