CN203085726U - Ultrastrong coupler - Google Patents
Ultrastrong coupler Download PDFInfo
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- CN203085726U CN203085726U CN 201320108710 CN201320108710U CN203085726U CN 203085726 U CN203085726 U CN 203085726U CN 201320108710 CN201320108710 CN 201320108710 CN 201320108710 U CN201320108710 U CN 201320108710U CN 203085726 U CN203085726 U CN 203085726U
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Abstract
The utility model discloses an ultrastrong coupler, which comprises a coupling cavity, an input end, an isolation end A, a coupling end and an isolation end B, wherein the input end, the isolation end A, the coupling end and the isolation end B are communicated with the coupling cavity, the input end and the isolation end B are positioned at the front end surface of the coupling cavity, the coupling end and the isolation end A are positioned at the back end surface of the coupling cavity, the isolation end B is positioned at the right side of the input end, the coupling end is positioned at the right side of the isolation end A, column-shaped bodies are arranged in the coupling cavity and are distributed into at least one row in a direction along the front and back axial line direction of the input end, in addition, the column-shaped bodies are distributed into at least one line in the direction vertical to the front and back axial line of the input end, and the column-shaped bodies are connected with the upper inner wall or the lower inner wall of the coupling cavity. The ultrastrong coupler has more than 37 percent of relevant work bandwidth, and simultaneously has the characteristics that the structure is simple, the size is small, and the processing difficulty is low. The ultrastrong coupler can be widely applied to the military and civil fields such as antenna array and phase control radars, power synthesis, missile guidance and communication.
Description
Technical field
The utility model relates to a kind of super coupler.Specifically, relate to a kind of super coupler in broadband that is loaded with many columns, i.e. a kind of superpower coupler.
Background technology
Coupler is widely used a kind of microwave device in microwave system, and its Main Function is that microwave signal is carried out to power division according to a certain percentage; The advantage that wherein coupler of waveguiding structure has due to itself is widely used at microwave circle.Metal waveguide has conductor losses and a medium (being generally air in pipe), and loss is little, power capacity is large, there is no radiation loss, simple in structure, be easy to the advantages such as manufacture.Be widely used in the systems such as millimere-wave band communication, radar, remote sensing, electronic countermeasures and measurement of 3000MHz to 300GHz.Waveguide is as navigation system, and in transmitting procedure, transmission line often needs to intersect or cross-over connection.When solving problems, normally by waveguide assemblies, realize, as the assemblies such as curved waveguide, waveguide twist, waveguide are realized in the past.But this scheme causes need to adopting ring flange to be connected in connection with infall usually, causes connecting the reduction of precision and the increase of volume.The integrated waveguide system is integrated in above-mentioned all components and parts on a metal base plate, by CNC milling machine, processes at one time, and has improved widely machining accuracy, has reduced difficulty of processing, and the volume of system is dwindled greatly.But, connection and infall at waveguide transmission line, for being intersected, two waveguides pass through, usually want two waveguides to stagger and make it to form stereochemical structure and use grading structure just can return to and continue to propagate in same plane, so not only cause the increase of infall volume, loss increase, voltage standing wave ratio to increase, also can be because the complexity of grading structure is brought difficulty to processing.Because ridge waveguide is wider compared to the single mode operation frequency band of rectangular waveguide, characteristic impedance is lower, so adopt ridge waveguide can better solve the relatively narrow problem of rectangular waveguide bandwidth.
The utility model content
The purpose of this utility model is to overcome due to the waveguide cross-over connection, intersects and need to cause the series of problems such as the increase of infall volume, machining accuracy reduction by three-dimensional labyrinth, provides a kind of and in one plane can realize the waveguide cross-over connection, intersected and transmit and the high a kind of superpower coupler of bandwidth progression.
To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of superpower coupler comprises coupling cavity, the input be communicated with coupling cavity, isolation end A, coupled end, isolation end B; Input and isolation end B are positioned at the front end face of coupling cavity, and coupled end and isolation end A are positioned at the rear end face of coupling cavity, and front end face and rear end face are coupling cavity two end faces in opposition to each other, and isolation end B is positioned at the right side of input, and coupled end is positioned at isolation end A right side; Be provided with column in coupling cavity, column is arranged at least 1 row and column is arranged at least 1 row along the direction vertical to axis with the front and back of input along the front and back of input to axis direction; Described column is connected with upper inwall or the lower inwall of coupling cavity; There is gap between adjacent 2 row columns.
The utility model is in colleague's column, and adjacent column exists difference in height or stand out overlooking direction.In the same column column, adjacent column exists stand out or difference in height in the direction vertical to axis with front and back.Arrange like this to form rough coupling surface in coupling cavity, to reach the purpose that strengthens coupling, finally obtain the effect of super coupling.Simultaneously, the utility model adopts the column of independently arranging, although there is contact between them, but in fact its each column is all for strengthening coupling, become in addition the column of a structure than global design, its coupling performance obviously improves, and its reason is, the electric field that the column of a plurality of coupling use causes is better than the electric field that a column causes, and its principle is consistent with the principle of a magnet and the comparison of polylith magnet.At some position electric field, in strengthening, some position, in weakening state, therefore, can reach the effect of super coupling.
The left surface of described coupling cavity or and right flank be provided with at least one metal bump, the protrusion direction of metal bump is pointed in coupling cavity or outside coupling cavity
.the protruding column of can assisting of metal further promotes its service behaviour.
Described column is parallel along the sagittal axis direction of input
In order to regulate the working band of coupling effect and further broadening device, input, output, coupled end, isolation end are all ridge waveguide.Ridge waveguide comprise the rectangular waveguide cavity body and be arranged on inwall on the rectangular waveguide cavity body or and the loading conductor ridge of lower inwall.
In order to improve the coupling between input/output terminal and coupling cavity, input, output, coupled end, isolation end all are connected with coupling cavity by least one section matched waveguide.
In order to regulate coupling effect, be provided with the metal ridge be connected with the matched waveguide inner bottom surface in described matched waveguide.
Further, for the ease of processing and assembling, reduce processing request, the upper surface of the upper surface of the upper surface of input, the upper surface of output, coupled end, the upper surface of isolation end, coupling cavity, the upper surface of matched waveguide all are positioned at same plane.
Further, in order to regulate coupling effect, between the column adjacent to axis direction with the front and back of input, have zero clearance, and column is metal column or is the medium post.As an alternative, in the utility model, column can also possess the column of regulating coupling and or strengthening bandwidth for other.
Further, for the ease of processing and assembling, reduce processing request, column is circle or rectangle at the cross section of overlooking on direction.
Further, for the ease of processing and assembling, reduce processing request, coupling cavity, input, output, coupled end, isolation end are cuboid.
For the bandwidth of operation of broadening device and strengthen its coupling effect and make the effect that reaches super coupling, be provided with column in coupling cavity, column is arranged at least 1 row and column along the front and back of input to axis direction and is arranged into the described column of at least 1 row along the direction vertical to axis with the front and back of input and is connected with upper inwall or the lower inwall of coupling cavity.
The width of coupling cavity has at least 1 variation along the axis direction of input.The left inside side and the right inside side that are described coupling cavity are provided with at least one metal bump, in the protrusion direction sensing coupling cavity of metal bump or outside coupling cavity.Metal bump is to change arbitrarily, can be rectangular column, circular columns or other obform bodies.
Maximum characteristics of the present utility model are to be provided with at least 3 columns and column is parallel along the axis direction of front/rear end in coupling cavity, column is arranged can be on the same straight line, regulate phase velocity and coupling between the different mode of signal in coupling cavity by column, the bandwidth of operation of device is greatly enhanced.
Operation principle of the present utility model can be at the coupling cavity of rectangle and input port, the output port of rectangle, and the main waveguide of rectangle and complementary wave are led in the situation as the input and output waveguide and be summarized as follows.Input port has mainly encouraged two waveguide mode of operations, i.e. TE10 pattern and TE20 pattern in the coupling cavity of rectangle.The ripple of these two patterns all will be propagated along input waveguide (main waveguide) axis direction.Due to the guide wavelength difference of these two patterns, at the other end of coupling cavity, the power that coupled end and output are coupled out from coupling cavity be the power that is coupled out from the ripple of two mode of operation TE10 patterns and TE20 pattern respectively and.By width and the length of choosing coupling cavity, and size and the position of input, output, coupled end, isolation end, the power phases that can make output be coupled out from two mode of operations respectively differs 180 degree, cancel out each other, the power phases that simultaneously makes coupled end be coupled out from two mode of operations differs the integral multiple of 0 degree or 360 degree, mutually stack.At this moment, all energy are all exported from the coupling port coupling basically, and from output, do not export.Because two mode of operation TE10 patterns of input port excitation meet at the isolation end place naturally with TE20, anti-phasely disappear mutually, the power be coupled out from isolation end is all very little.At this moment, all energy are all exported from coupled end basically, and not from the input reflection, also from output and isolation end output.In order further to widen the bandwidth of operation of device, the shape of coupling cavity, particularly width can suitably change along the axis of input, especially at bottom or the top of coupling cavity, increase column.Each input/output terminal can increase one or more levels ridge waveguide matched waveguide.
Above-mentioned front and back are to be pointed to the coupling cavity axis of rear end face by front end face to axis.
The utility model has the advantage of: in one plane can realize that waveguide cross-over connection, intersection are transmitted, broadband progression is high, super coupler of the present utility model has the relative bandwidth of operation more than 37%, have simultaneously simple in structure, volume is little, the characteristics that difficulty of processing is low.The utility model can be widely used in that antenna array, phased array radar and power are synthetic, missile guidance, military affairs and the civil area such as communicate by letter.
The accompanying drawing explanation
The vertical view that Fig. 1 is the utility model (after removing cover plate).
The result of calculation curve that Fig. 2 is embodiment 1.
The vertical view that Fig. 3 is embodiment 2.
Label in figure is expressed as respectively: 1, input: 2, isolation end A; 3, coupled end; 4, isolation end B; 5, coupling cavity; 6, load the conductor ridge; 7, matched waveguide; 8, metal ridge; 9, column.
Embodiment
As shown in Figure 1, a kind of superpower coupler, comprise coupling cavity 5, the input/output terminal be communicated with coupling cavity 5, the input 1 be communicated with coupling cavity 5, isolation end A2, coupled end 3, isolation end B4.Input 1 and isolation end B4 are positioned at the front end face of coupling cavity 5, and coupled end 3 and isolation end A2 are positioned at the rear end face of coupling cavity 5, and front end face and rear end face are coupling cavity two end faces in opposition to each other.Isolation end B4 is positioned at the right side of input 1, and coupled end 3 is positioned at isolation end A2 right side.Be provided with column 9 in coupling cavity 5, column 9 is arranged into 5 row and column 9 is arranged into 3 row along the directions vertical to axis with the front and back of input 1 along the front and back of input 1 to axis direction, totally 15 rectangle columns 9.Described column 9 is connected with upper inwall or the lower inwall of coupling cavity 5.The width of described coupling cavity 5 has 4 variations along the axis direction of input 1.The concrete left inside side that is changed to coupling cavity 5 and right inside side are provided with metal bump, and the protrusion direction of metal bump is pointed in coupling cavity 5.There is gap between adjacent 2 row columns.The utility model is in the same column column, and there is difference in height in adjacent column overlooking direction.In the same column column, there is stand out in adjacent column in the direction vertical to axis with front and back.
The input 1 of rectangle has mainly encouraged two waveguide mode of operations, i.e. TE10 pattern and TE20 pattern in the coupling cavity 5 of rectangle.The ripple of these two patterns all will be propagated to axis direction along input 1 front and back.Due to the guide wavelength difference of these two patterns, at the other end of coupling cavity 5, the power that isolation end A2 and coupled end 3 places are coupled out from coupling cavity 5 be the power that is coupled out from the ripple of two mode of operation TE10 patterns and TE20 pattern respectively and.By width and the length of choosing coupling cavity 5, and the size of each input/output terminal and position, can make the power sum that coupled end 3 is coupled out from two mode of operations respectively meet certain designing requirement, it is 180 degree that the power phases that simultaneously makes isolation end B4 be coupled out from two mode of operations respectively differs, and cancels out each other.At this moment, all energy are all exported from coupled end 3 basically, and not from input 1 reflection, also from isolation end A2 and isolation end B4 output.In order further to widen the bandwidth of operation of device, the shape of coupling cavity 5, particularly width can suitably change along the axis of input, especially at bottom or the top of coupling cavity 5, increase column 9.Each input/output terminal can increase one or more levels ridge waveguide matched waveguide 7.
The analog computation curve of a kind of superpower coupler that Fig. 2 is embodiment 1.Therefrom can find out, in 6.4 ~ 9.6GHz frequency range, realize well a super coupler.In figure, S11 means the reflection coefficient of input 1, and S21 means the transmission coefficient of isolation end A2, and S31 means the coupling coefficient of coupled end 3, and S41 means the isolating coefficient of isolation end B4.Curve distribution in figure can find out, the Insertion Loss of this super coupler is less than 0.5dB, and fluctuation is less than 0.5dB.The reflection of each port is all lower than-15dB, be better than-15dB of the isolation between output.The relative bandwidth of operation of this super coupler is 40%.
As shown in Figure 3, with the difference of embodiment 1, only be, coupling cavity 5 does not have gradual change on width, and has adopted respectively 2 cross sections for circular and 1 column 9 that cross section is rectangle.Adopting in addition 2, to load conductor ridges 6 parallel along the sagittal axis direction of input, and run through whole coupling cavity 5 and extend to input/output terminal, there is no metal ridge 8.Input/output terminal all increases one-level ridge waveguide matched waveguide 7, and matched waveguide 7 once gradual change on width.Load conductor ridge 6 and be equivalent to column 9.
Above are only for example.In actual production, the side of coupling cavity 5 can be both one or more straightway, can be also smooth curve, formed and overlooked the rectangle of direction, the pattern that trapezoidal or other are more complicated.Column 9 can for rectangle, circle, ellipse or other be irregularly shaped.
As mentioned above, can well realize the utility model.
Claims (10)
1. a superpower coupler, is characterized in that: comprise coupling cavity (5), the input (1), the isolation end A(2 that are communicated with coupling cavity (5)), coupled end (3), isolation end B(4); Input (1) and isolation end B(4) be positioned at the front end face of coupling cavity (5), coupled end (3) and isolation end A (2) are positioned at the rear end face of coupling cavity (5), front end face and rear end face are coupling cavity two end faces in opposition to each other, isolation end B(4) be positioned at the right side of input (1), coupled end (3) is positioned at isolation end A (2) right side; Be provided with column (9) in coupling cavity (5), column (9) is arranged at least 1 row and column (9) is arranged at least 1 row along the direction vertical to axis with the front and back of input (1) along the front and back of input (1) to axis direction; Described column (9) is connected with upper inwall or the lower inwall of coupling cavity (5); There is gap between adjacent 2 row columns (9).
2. a kind of superpower coupler according to claim 1, it is characterized in that: the left surface of described coupling cavity (5) or and right flank be provided with at least one metal bump, the protrusion direction of metal bump is pointed in coupling cavity (5) or outside coupling cavity (5)
.
3. a kind of superpower coupler according to claim 1, it is characterized in that: column (9) is parallel along the sagittal axis direction of input (1).
4. a kind of superpower coupler according to claim 1, it is characterized in that: input (1), isolation end A (2), coupled end (3), isolation end B(4) be all ridge waveguide, ridge waveguide comprise the rectangular waveguide cavity body and be arranged on inwall on the rectangular waveguide cavity body or and the loading conductor ridge (6) of lower inwall.
5. want 1 described a kind of superpower coupler according to right, it is characterized in that: input (1), isolation end A (2), coupled end (3), isolation end B(4) all by least one section matched waveguide (7), with coupling cavity (5), be connected.
6. a kind of superpower coupler according to claim 5, is characterized in that, is provided with the metal ridge (8) be connected with matched waveguide (7) inner bottom surface in described matched waveguide (7).
7. according to the described a kind of superpower coupler of any one in claim 5-6, it is characterized in that: the upper surface of the upper surface of input (1), isolation end A (2), the upper surface of coupled end (3), isolation end B(4) upper surface, the upper surface of coupling cavity (5), the upper surface of matched waveguide (7) all be positioned at same plane.
8. according to the described a kind of superpower coupler of any one in claim 1-6, it is characterized in that: have zero clearance between the column (9) adjacent to axis direction with the front and back of input (1), and column (9) be metal column or is the medium post.
9. according to the described a kind of superpower coupler of any one in claim 1-6, it is characterized in that: column (9) is circle or rectangle or trapezoidal at the cross section of overlooking direction.
10. according to the described a kind of superpower coupler of any one in claim 1-6, it is characterized in that: coupling cavity (5), input (1), isolation end A (2), coupled end (3), isolation end B(4) be cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108710 CN203085726U (en) | 2013-03-11 | 2013-03-11 | Ultrastrong coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108710 CN203085726U (en) | 2013-03-11 | 2013-03-11 | Ultrastrong coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203085726U true CN203085726U (en) | 2013-07-24 |
Family
ID=48831535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320108710 Expired - Fee Related CN203085726U (en) | 2013-03-11 | 2013-03-11 | Ultrastrong coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203085726U (en) |
-
2013
- 2013-03-11 CN CN 201320108710 patent/CN203085726U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20160311 |