CN108511860A - The torsion transmission line of one kind of multiple rotation angles - Google Patents
The torsion transmission line of one kind of multiple rotation angles Download PDFInfo
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- CN108511860A CN108511860A CN201810271873.4A CN201810271873A CN108511860A CN 108511860 A CN108511860 A CN 108511860A CN 201810271873 A CN201810271873 A CN 201810271873A CN 108511860 A CN108511860 A CN 108511860A
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- China
- Prior art keywords
- transmission line
- axis
- electromagnetism
- electromagnetism channel
- ridge
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/10—Wire waveguides, i.e. with a single solid longitudinal conductor
Abstract
The invention discloses the torsion transmission lines of one kind of multiple rotation angles, including an at least input transmission line and an output transmission line and an electromagnetism channel.The input transmission line and output transmission line are connected to one in two end faces in electromagnetism channel respectively.The output transmission line is rotated by a certain angle determination about the z axis by the input transmission line.The electromagnetism channel is made of at least one branch.At least one branch route at least three and is constituted along the through-hole that Y-direction is connected to.The compact torsion transition in broadband that various waveguides, ridge waveguide and multi-ridge waveguide may be implemented in the torsion transmission line.In various communications and radar system present invention is mainly used for microwave, millimeter wave and terahertz wave band.
Description
Technical field
The present invention relates to a kind of electromagnetic wave elements, specifically, being to be related to a kind of matching connection to reverse certain angle around axis
The electromagnetic wave structure of two transmission lines of degree.
Background technology
In various electromagnetic wave systems, transmission line connects generally existing around the torsion of its axis.At transmission line torsion
The ghost effect brought, the signal in transmission line will be reflected.In order to realize the matching of torsion transmission line, need on the transmission line
Mating structure is set.
Existing match circuit is complicated, volume is big, and narrower bandwidth, especially in rectangular waveguide, single ridge rectangle
Waveguide, double ridge rectangular waveguides and four ridge rectangles, circular waveguide or elliptical waveguide, single ridge circular waveguide or elliptical waveguide, double ridge circular waveguides
Or in elliptical waveguide and four ridge circular waveguides or elliptical waveguide.
Invention content
The object of the present invention is to provide the torsion transmission lines of one kind of multiple rotation angles, and compared with prior art, structure is more
Simply, processing is more convenient, working frequency is wide.
To achieve the goals above, the technical solution adopted by the present invention is：
The torsion transmission line of one kind of multiple rotation angles includes the input transmission line and one being sequentially communicated along Z-direction
Root output transmission line and at least one electromagnetism channel；The both ends of the surface in electromagnetism channel are respectively a plane A and plane parallel to each other
A part of B；The input transmission line and output transmission line are connected to one in two end faces in electromagnetism channel respectively；It is described
Electromagnetism channel is made of at least one branch.At least one electromagnetic wave branch route at least three and is constituted along the through-hole that Y-direction is connected to.
The maximum length t in the electromagnetism channel is between any two points being located on the electromagnetism channel end faces Liang Ge
The maximum value of distance；The center operating frequency of the torsion transmission line is defined as SQRT (f1*f2)；Wherein f1 is the torsion transmission line
Lowest operating frequency, f2 be the torsion transmission line maximum operating frequency, SQRT is square root function；X-axis and Y-axis are located at should
In the plane of one end face in electromagnetism channel, and X-axis, Y-axis and Z axis meet the right-hand rule；The maximum width of arbitrary through-hole is
The maximum length that the line between any two points on the through-hole is projected in X-direction；The input terminal of input transmission line and output pass
The normal direction D and E of the end face of the output end of defeated line are respectively defined as axis direction and and signal stream at its end face geometric center
Dynamic direction is consistent.
Under normal circumstances, the input transmission line and output transmission line are identical transmission line；The output transmission line
It rotates by a certain angle about the z axis perpendicular to the cross-sectional shape of Z axis and the cross-sectional shape perpendicular to Z axis of the input transmission line
It is identical after phi.
But technology of the invention can be used for cross-sectional shape difference of the matching input transmission line with output transmission line
The case where.
Under normal circumstances, the number for increasing electromagnetism channel is conducive to obtain broader bandwidth or preferably matching.
Preferable situation, the number of the microwave channel are 1 enough.At this moment, the total length of mating structure is minimum.
But in order to obtain better matching, the number of the microwave channel is 2；One electromagnetic wave channel passes through
One end face is connected to an end face in another electromagnetic wave channel.
At this moment, preferable realization method, two microwave channels are arranged on the same metallic object.Numerical control can be passed through
Milling machine is machined from the both ends of the surface of entire microwave channel respectively respectively.
The input transmission line can be various types, including but not limited to rectangular waveguide or for single ridge rectangular waveguide or
For double ridge rectangular waveguides or it is cross waveguide or is square wave guide or is four ridge square wave guides or is elliptical waveguide or is that single ridge is ellipse
Circular waveguide or for double ridge elliptical waveguides or be four ridge circular waveguides, or be ridge gap waveguide.
The common situation in angle, the angle phi=22.5 degree or 30 or 45 or 60 or 90 degree.
The electromagnetism channel includes at least a branch, which route at least three and constituted along the through-hole that Y-direction is connected to；Along Y
The maximum width in direction, each through-hole is sequentially reduced, and is then increased.It is rotated according between the input transmission line and output transmission line
Angle it is different, at least one branch rotates by a certain angle about the z axis.
Sometimes, the electromagnetism channel includes two branches, and cross-sectional shape is X-shaped
The electromagnetism channel tool is there are one the plane of mirror symmetry for crossing Z axis or with mutually orthogonal two mirrors for crossing Z axis
As symmetrical plane.
Constitute the preferable selection of the through-hole of a branch in the electromagnetism channel, the cross section of at least one through-hole
Shape is rectangle.Or the cross-sectional shape of all through-holes is all rectangle.
Meanwhile each rectangular through-hole is connected to by its adjacent edge in the Y direction.
The electromagnetism channel constituted in this way, design process on the basis of keeping its flexibility, have very high modeling and
Optimization efficiency.
The present invention realizes various torsions using multiple rectangles or the interconnected electromagnetism channel constituted of other shapes of through-hole
Turn the matching of transmission line.Compared with existing similar scheme, its modeling optimization computational efficiency can be significantly improved.This electromagnetic wave
The volume smaller and bandwidth of operation of circuit are wider.The structure can be used for matching various torsion transmission lines, including coaxial line, square
Shape waveguide, circular waveguide, the rectangular waveguide or circular waveguide, SIW for adding ridge, micro-strip, band line etc., the advantage on matching effect and bandwidth is bright
It is aobvious.
Description of the drawings
Fig. 1 a are schematic diagram of the present invention.
Fig. 1 b are schematic diagram of the present invention.
Fig. 2 is the input transmission line cross-sectional view of the present invention-embodiment 1.
Fig. 3 is the input transmission line cross-sectional view of the present invention-embodiment 2.
Fig. 4 is the input transmission line cross-sectional view of the present invention-embodiment 3.
Fig. 5 is the input transmission line cross-sectional view of the present invention-embodiment 4.
Fig. 6 is the input transmission line cross-sectional view of the present invention-embodiment 5.
The input transmission line cross-sectional view of Fig. 7 present invention-embodiment 6.
Fig. 8 is the input transmission line cross-sectional view of the present invention-embodiment 7.
Fig. 9 is the schematic diagram of the present invention-embodiment 8.
Figure 10 is the lateral schematic diagram in the electromagnetism channel of the present invention-embodiment 8.
Figure 11 is the schematic diagram of the present invention-embodiment 9.
Figure 12 is the lateral schematic diagram in the electromagnetism channel of the present invention-embodiment 9.
Figure 13 is the schematic diagram of the present invention-embodiment 10.
Figure 14 is the lateral schematic diagram in the electromagnetism channel of the present invention-embodiment 10.
Attached figure label corresponds to title：2- input transmission lines, 22- metal ridges, 3- electromagnetism channel, 31- through-holes, 8- outputs pass
Defeated line.
Specific embodiment
Embodiment 1
As shown in Fig. 1 a, Fig. 1 b and Fig. 2.
The torsion transmission line of one kind of multiple rotation angles includes an input transmission line 2 and one being sequentially communicated along Z-direction
Root output transmission line 8 and an electromagnetism channel 3；The both ends of the surface in electromagnetism channel 3 are respectively a plane A and plane B parallel to each other
A part；The input transmission line 2 and output transmission line 8 are connected to one in two end faces in electromagnetism channel 3 respectively；Institute
Electromagnetism channel 3 is stated to be made of a branch.
The input transmission line 2 and output transmission line 8 are identical transmission line；The output transmission line 8 perpendicular to Z axis
Cross-sectional shape be rotated by 90 ° about the z axis with the cross-sectional shape perpendicular to Z axis of the input transmission line 2 it is rear identical.
The input transmission line 2 and output transmission line 8 are identical rectangular waveguide.
The electromagnetic wave branch route 5 through-holes 31 along Y-direction connection and constitutes.Then, the branch rotates 45 about the z axis
Degree.
Embodiment 2
As shown in Fig. 1 a, Fig. 1 b and Fig. 3.
This embodiment and the main distinction of embodiment 1 are only that the input transmission line 2 and output transmission line 8 are
Identical list ridge rectangular waveguide.
Embodiment 3
As shown in Fig. 1 a, Fig. 1 b and Fig. 4.
This embodiment and the main distinction of embodiment 1 are only that the input transmission line 2 and output transmission line 8 are
Identical double ridge rectangular waveguides.
Embodiment 4
As shown in Fig. 1 a, Fig. 1 b and Fig. 5.
This embodiment and the main distinction of embodiment 1 are only that the input transmission line 2 and output transmission line 8 are
Identical four ridges rectangular waveguide.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is identical after rotating 45 degree about the z axis.
The electromagnetism channel 3 is rotated determined by 45 degree, 90 degree and 135 degree respectively about the z axis by a branch and the branch
Other three branches, which are added, to be constituted.The electromagnetism channel 3 is at M shape.
Embodiment 5
As shown in Fig. 1 a, Fig. 1 b and Fig. 6.
This embodiment and the main distinction of embodiment 1 are only that the input transmission line 2 and output transmission line 8 are
Identical square waveguide.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is identical after rotating 45 degree about the z axis.
The electromagnetism channel 3 is rotated determined by 45 degree, 90 degree and 135 degree respectively about the z axis by a branch and the branch
Other three branches, which are added, to be constituted.The electromagnetism channel 3 is at M shape.
Embodiment 6
As shown in Fig. 1 a, Fig. 1 b and Fig. 7.
This embodiment and the main distinction of embodiment 1 are only that the input transmission line 2 and output transmission line 8 are
Identical four ridges circular waveguide.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is identical after rotating 45 degree about the z axis.
The electromagnetism channel 3 is rotated determined by 45 degree, 90 degree and 135 degree respectively about the z axis by a branch and the branch
Other three branches, which are added, to be constituted.The electromagnetism channel 3 is at M shape.
Embodiment 7
As shown in Fig. 1 a, Fig. 1 b and Fig. 8.
This embodiment and the main distinction of embodiment 1 be only that, the input transmission line 2 and output transmission line
8 be identical cross waveguide.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is rotated by 90 ° rear identical about the z axis.
The electromagnetism channel 3 is made of two branch additions.3 across of electromagnetism channel.
Embodiment 8
As shown in Figures 9 and 10.
The further specific implementation of this embodiment and embodiment 5.The input transmission line 2 and output transmission line 8 are
Identical square waveguide.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is identical after rotating 45 degree about the z axis.
The electromagnetism channel 3 rotates 45 degree, 90 degree and 135 degree institutes really respectively about the z axis by a rectangle branch and the branch
Fixed other three branches, which are added, to be constituted.The electromagnetism channel 3 is at M shape.
The length of side of square wave guide is 9.5 millimeters.When there is no the electromagnetism channel 3, the input transmission line 2 and output transmission line
8 are connected directly.In 19.6~31GHz frequency ranges, maximum reflection coefficient is -17dB.Using length be only 0.86 millimeter such as
M shape electromagnetism shown in Fig. 10 channel, in same bandwidth, maximum reflection coefficient is reduced to -30dB.
Embodiment 9
As shown in FIG. 11 and 12.
The further specific implementation of this embodiment and embodiment 3.The input transmission line 2 and output transmission line 8 are
Identical double ridge rectangular waveguides.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is rotated by 90 ° rear identical about the z axis.
The electromagnetism channel 3 is made of a branch.The branch route 17 rectangular through-holes and is interconnected on one side by it
It constitutes.The electromagnetism channel 3 has rotated 45 degree about the z axis.
The width of double ridge rectangular waveguides is 7.7 millimeters, is highly 3.3 millimeters.Metal ridge width is 1.93 millimeters.Metal ridge
Gap between top is 0.61 millimeter.It is only 0.83 millimeter of electromagnetism channel as shown in figure 12 using length, in 15~45GHz
Bandwidth of operation in, maximum reflection coefficient be -23.3dB.
Embodiment 10
As shown in Figs. 13 and 14.
The further specific implementation of this embodiment and embodiment 1.The input transmission line 2 and output transmission line 8 are
Identical rectangular waveguide.
The cross-sectional shape perpendicular to Z axis of the output transmission line 8 and the input transmission line 2 perpendicular to Z axis
Cross-sectional shape is rotated by 90 ° rear identical about the z axis.
The electromagnetism channel 3 is made of a branch.The branch route 9 rectangular through-holes and interconnects structure on one side by it
At.The electromagnetism channel 3 has rotated 45 degree about the z axis.
The width of rectangular waveguide is 7.112 millimeters, is highly 3.556 millimeters.It is only 1.76 millimeters such as Figure 14 using length
Shown in electromagnetism channel, in whole bandwidth of operation of 26.3~40GHz, maximum reflection coefficient be -27.3dB.
In order to describe the present invention, more embodiments can also be enumerated.In order to realize above-mentioned each embodiment, each through-hole
Shape may need accordingly to be changed according to processing method.For example, when being processed using CNC milling machine, internal crest line therein
It needs by lead angle.The radius of curvature of chamfering is several millimeters to 0.5 millimeter.If using linear cutter, these crest lines are also required to
It is radiused, only chamfering radius of curvature may diminish to 0.1 millimeter.In principle, every various implementations for meeting this paper claims
Belong to patent disclosure of the present invention.
Claims (7)
1. the torsion transmission line of one kind of multiple rotation angles, which is characterized in that include being passed along the input that Z-direction is sequentially communicated
Defeated line (2) and an output transmission line (8) and at least one electromagnetism channel (3)；The both ends of the surface in electromagnetism channel (3) are respectively mutual
A part of a parallel plane A and plane B；The input transmission line (2) and output transmission line (8) respectively with electromagnetism channel
(3) connection in two end faces；The electromagnetism channel (3) is made of at least one branch, at least one electromagnetic wave branch
The through-hole (31) that routing at least three is connected to along Y-direction is constituted；The maximum length t in the electromagnetism channel is to be located at the electromagnetism
The maximum value of the distance between any two points on the end face of (3) two, channel；The center operating frequency of the torsion transmission line defines
For SQRT (f1*f2)；Wherein f1 is the lowest operating frequency of the torsion transmission line, and f2 is the highest work frequency of the torsion transmission line
Rate, SQRT are square root function；X-axis and Y-axis are located in the plane of an end face in the electromagnetism channel (3), and X-axis, Y-axis and
Z axis meets the right-hand rule；Line of the maximum width of arbitrary through-hole (31) between any two points on the through-hole (31) is in the side X
To the maximum length of projection；The normal direction of the end face of the input terminal of input transmission line (2) and the output end of output transmission line (8)
D and E is respectively defined as at its end face geometric center axis direction and consistent with signal flow direction；The input transmission line (2)
It is identical transmission line with output transmission line (8)；The cross-sectional shape perpendicular to Z axis of the output transmission line (8) with it is described
The cross-sectional shape perpendicular to Z axis of input transmission line (2) is along identical, institute after rotation angle phi about the z axis clockwise or counterclockwise
State angle phi=22.5 degree or 30 or 45 or 60 or 90 degree.
2. the torsion transmission line of one kind of multiple rotation angles according to claim 1, which is characterized in that the input transmission
Line (2) or be rectangular waveguide or be single ridge rectangular waveguide or be double ridge rectangular waveguides or be cross waveguide or be square wave guide,
Or for four ridge square wave guides or be elliptical waveguide or be single ridge elliptical waveguide or be double ridge elliptical waveguides or be four ridge circular waveguides,
Or it is ridge gap waveguide (Ridge Gap Waveguide).
3. the torsion transmission line of one kind of multiple rotation angles according to claim 1, which is characterized in that the electromagnetism channel
Including at least a branch, which route the through-hole (31) that at least three is connected to along Y-direction and constitutes；Along Y-direction, each through-hole is most
Big width is sequentially reduced, and is then increased.
4. the torsion transmission line of one kind of multiple rotation angles according to claim 1, which is characterized in that described at least one
Branch rotates by a certain angle about the z axis.
5. the torsion transmission line of one kind of multiple rotation angles according to claim 1, which is characterized in that the electromagnetism channel
Including two branches, cross-sectional shape is X-shaped.
6. the torsion transmission line of one kind of multiple rotation angles according to claim 1, which is characterized in that the electromagnetism channel
Tool is there are one the plane of mirror symmetry for crossing Z axis or with mutually orthogonal two plane of mirror symmetry for crossing Z axis.
7. the torsion transmission line of one kind of multiple rotation angles according to claim 1-6 any one, which is characterized in that extremely
The cross-sectional shape of a few through-hole (31) is rectangle, and each rectangular through-hole (31) is connected by its adjacent edge in the Y direction
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810271873.4A CN108511860A (en) | 2018-03-29 | 2018-03-29 | The torsion transmission line of one kind of multiple rotation angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810271873.4A CN108511860A (en) | 2018-03-29 | 2018-03-29 | The torsion transmission line of one kind of multiple rotation angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108511860A true CN108511860A (en) | 2018-09-07 |
Family
ID=63377871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810271873.4A Withdrawn CN108511860A (en) | 2018-03-29 | 2018-03-29 | The torsion transmission line of one kind of multiple rotation angles |
Country Status (1)
| Country | Link |
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| CN (1) | CN108511860A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2493007A1 (en) * | 2010-02-16 | 2012-08-29 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
| CN204067524U (en) * | 2014-06-30 | 2014-12-31 | 成都赛纳赛德科技有限公司 | Twist and warping waveguide adaptor |
-
2018
- 2018-03-29 CN CN201810271873.4A patent/CN108511860A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2493007A1 (en) * | 2010-02-16 | 2012-08-29 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
| CN204067524U (en) * | 2014-06-30 | 2014-12-31 | 成都赛纳赛德科技有限公司 | Twist and warping waveguide adaptor |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180907 |
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