CN108461882A - A kind of general dislocation transmission line - Google Patents
A kind of general dislocation transmission line Download PDFInfo
- Publication number
- CN108461882A CN108461882A CN201810272767.8A CN201810272767A CN108461882A CN 108461882 A CN108461882 A CN 108461882A CN 201810272767 A CN201810272767 A CN 201810272767A CN 108461882 A CN108461882 A CN 108461882A
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- China
- Prior art keywords
- transmission line
- waveguide
- line
- ridge
- dislocation
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- 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.)
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Classifications
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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 a kind of general dislocation transmission lines, including at least 2 input transmission lines and at least one electromagnetism channel.Two transmission lines are connected to by one end face with one in two end faces in electromagnetism channel respectively.Two transmission lines are staggered in its plane of structure face direction.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 dislocation transition in broadband that various waveguides, ridge waveguide and multi-ridge waveguide may be implemented in the dislocation 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 one kind a transmission lines is made to transmit with another
The compact electromagnetic wave structure of line dislocation matching connection.
Background technology
In various electromagnetic wave systems, the dislocation between transmission line connects generally existing.Due to discontinuity band at dislocation
The ghost effect come, the signal in transmission line will be reflected.In order to realize the matching of dislocation transmission line, need to set on the transmission line
Set match circuit.
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 during elliptical waveguide is connected with the dislocation of four ridge circular waveguides or elliptical waveguide.
Invention content
The object of the present invention is to provide a kind of compact dislocation transmission lines, and compared with prior art, structure is simpler, processes
It is more convenient, working frequency is wide.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of general dislocation transmission line, including at least two transmission lines and at least one electromagnetism channel；The two of electromagnetism channel
End face is a flat surface a part of A and plane B respectively；Two input transmission lines are logical by one section and electromagnetism respectively
A connection in two end faces in road；The electromagnetism channel is made of at least one branch, the routing of at least one electromagnetic wave branch
At least three is constituted along the through-hole that Y-direction is connected to.
The maximum length t in the electromagnetism channel is the company for any two points being located on two end faces in the electromagnetism channel
The maximum value of the projected length of line in z-direction；The center operating frequency of the dislocation transmission line is defined as SQRT (f1*f2)；Its
Middle f1 is the lowest operating frequency of the dislocation transmission line, and f2 is the maximum operating frequency of the dislocation transmission line, and SQRT is square root
Function；X axis and Y-axis are located in the plane of an end face in the 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；Input passes
The normal direction D and E of the end face of the input terminal of defeated line and the output end of output transmission line are respectively defined as its end face geometric center
Place's axis direction is simultaneously consistent with signal flow direction.
Preferably design, two microwave channels are arranged on the same metallic object.
For compact design, the maximum length t in at least one electromagnetism channel is less than the center of the dislocation transmission line
0.2 times of wavelength in the corresponding free space of working frequency.
The axis of two transmission lines be staggered on a direction of its cross section distance be more than any one transmission line at this
Maximum sized 1/20 on direction.This dislocation can in X-direction, either in the Y direction or transmission line cross section appoint
Meaning direction.
Without loss of generality, the input transmission line is different transmission line, or is coaxial line or rectangular coaxial line or square
Shape waveguide or single ridge rectangular waveguide or double ridge rectangular waveguides or four ridge rectangular waveguides or square wave guide or cross waveguide or ellipse
Circular waveguide or single ridge elliptical waveguide or double ridge elliptical waveguides or four ridge elliptical waveguides or substrate integration wave-guide or microstrip line,
Or with line or complanar line or fin line or ridge gap waveguide etc.；The output transmission line be different transmission lines, or for coaxial line,
Or rectangular coaxial line or rectangular waveguide or single ridge rectangular waveguide or double ridge rectangular waveguides or four ridge rectangular waveguides or square wave
It leads or cross waveguide or elliptical waveguide or single ridge elliptical waveguide or double ridge elliptical waveguides or four ridge elliptical waveguides or substrate
Integrated waveguide or microstrip line or with line or complanar line or fin line or ridge gap waveguide etc..
It is described to include at least a branch to electromagnetism channel in order to obtain better matching effect or broader bandwidth, it is somebody's turn to do
Branch route 3 through-holes along Y-direction connection and constitutes；Along Y-direction, the maximum width of each through-hole is sequentially reduced, and is then increased.
Further, described to include at least a branch to electromagnetism channel, which route 5 through-holes along the connection of the directions Y
It constitutes；Along Y-direction, the maximum width of each through-hole is sequentially increased, reduces, increases, reduces.
Continue growing the number of the through-hole for the branch for constituting the electromagnetism channel, the matching effect and bandwidth of the dislocation transmission line
It can be further improved：Described to include at least a branch to electromagnetism channel, which route 7 along the logical of Y-direction connection
Hole is constituted；Along Y-direction, the maximum width of each through-hole is sequentially increased, reduces, reduces, increases, increases, reduces.
The number of through-holes can increase to 9：Electromagnetism channel includes at least a branch, which route 9 and connect along Y-direction
Logical through-hole is constituted；Along Y-direction, the maximum width of each through-hole is sequentially increased, increases, reducing, reducing, increasing, increasing, reducing,
Reduce.
It is continuously increased the number of the through-hole for the branch for constituting the electromagnetism channel, the matching effect and bandwidth of the dislocation transmission line
It can be continuously improved.But the number it is too big when, the modeling of the dislocation transmission line and optimization computational efficiency will decline.
The electromagnetism channel may include two branches, and cross-sectional shape is X-shaped
The electromagnetism channel can be left and right mirror symmetry.At this moment, the dislocation transmission line can also be left and right mirror image pair
Claim.
The electromagnetism channel can be upper and lower mirror symmetry.At this moment, the dislocation transmission line can also be upper and lower mirror image pair
Claim.
The electromagnetism channel or so mirror symmetry, while upper and lower mirror symmetry.The dislocation transmission line can also be left and right
Mirror symmetry, while being also upper and lower mirror symmetry.
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.The cross-sectional shape of preferable realization method, 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 that various dislocation pass using the electromagnetism channel that multiple rectangles or the connection of other shapes of through-hole are constituted
The matching of defeated line.Compared with existing similar scheme, its modeling optimization computational efficiency can be significantly improved.This electromagnetism wave circuit
Volume smaller and also bandwidth of operation it is wider.In particular, the present invention can realize different transmission in the frequency range of ultra wide band
The dislocation of line connects.The structure can be used for matching various dislocation transmission lines, including coaxial line, rectangular waveguide, circular waveguide plus ridge
Rectangular waveguide or circular waveguide, SIW (substrate integration wave-guide), micro-strip, band line etc., it is with the obvious advantage on matching effect and bandwidth.
Description of the drawings
Fig. 1 a are the schematic diagram of the present invention and embodiment 1.
Fig. 1 b are the schematic diagram of the present invention and embodiment 1.
Fig. 2 is the schematic diagram of the present invention-embodiment 2.
Fig. 3 is the electromagnetism access diagram of the present invention-embodiment 2.
Fig. 4 is the schematic diagram of the present invention-embodiment 3.
Fig. 5 is the electromagnetism access diagram of the present invention-embodiment 3.
Attached figure label corresponds to title：2- transmission lines, 21- inner wires, 3- electromagnetism channel, 31- through-holes.
Specific embodiment
Embodiment 1
As illustrated in figs. 1A and ib.
A kind of general dislocation transmission line, including two transmission lines 2 and an electromagnetism channel 3；The both ends of the surface in electromagnetism channel 3 point
It is not a flat surface a part of A and plane B；Two input transmission lines 2 pass through one section and electromagnetism channel 3 respectively
A connection in two end faces；The electromagnetism channel 3 is made of a branch, this electromagnetic wave branch route 7 and connects along Y-direction
Logical through-hole 31 is constituted.
The maximum length t in the electromagnetism channel is less than in the corresponding free space of center operating frequency of the dislocation transmission line
0.2 times of wavelength.
The axis of two transmission lines 2 be staggered in the X-direction of its cross section distance be more than any one transmission line 2 in the party
Upward maximum sized 1/20.
Two transmission lines 2 are all rectangular waveguide.C
The branch route 7 through-holes 31 along Y-direction connection and constitutes；Along Y-direction, the maximum width of each through-hole is sequentially increased,
Reduce, reduce, increase, increase, reduce.
The electromagnetism channel is left and right mirror symmetry.
The electromagnetism channel is upper and lower mirror symmetry.
The cross-sectional shape for constituting all through-holes 31 of the through-hole of a branch in the electromagnetism channel is rectangle.
Meanwhile each rectangular through-hole 31 is connected to by its adjacent edge in the Y direction.
Embodiment 2
As shown in Figures 2 and 3.
It compared with embodiment 1, the difference is that only, two transmission lines are all double ridged waveguide.Two transmission lines are along the side X
To being staggered 3 millimeters.The width of double ridge rectangular waveguides is 7.7 millimeters, is highly 3.3 millimeters.Metal ridge width is 1.93 millimeters.Gold
It is 0.61 millimeter to belong to the gap between crestal culmination end.It is only 0.66 millimeter of electromagnetism channel as shown in Figure 4 using length, 15~
In the bandwidth of operation of 45GHz, maximum reflection coefficient is -18dB.
Embodiment 3
As shown in Figures 4 and 5.
It compared with embodiment 1, the difference is that only, two transmission lines are all double ridged waveguide.Two transmission lines are along the side Y
To being staggered 0.75 millimeter.The width of double ridge rectangular waveguides is 7.7 millimeters, is highly 3.3 millimeters.Metal ridge width is 1.93 millis
Rice.Gap between metal ridge top is 0.61 millimeter.It is only 0.38 millimeter of electromagnetism channel using length, 15~45GHz's
In bandwidth of operation, maximum reflection coefficient is -22dB.
In order to describe the present invention, more embodiments can also be enumerated.In principle, the transmission line of random cross-sectional shape
Transversion malposition can realize that the low reflection in broadband matches by electromagnetism channel connection, and belong to patent guarantor of the present invention
Protect range.In order to realize that above-mentioned each embodiment, the shape of each through-hole may need accordingly to be changed according to processing method.Than
Such as, when being processed using CNC milling machine, internal crest line therein is needed by lead angle.The radius of curvature of chamfering is several millimeters to 0.5 milli
Rice.If using linear cutter, these crest lines are also required to be radiused, and only chamfering radius of curvature may diminish to 0.1 millimeter.It is former
On then, every various implementations for meeting this paper claims belong to patent disclosure of the present invention.
Claims (10)
1. a kind of general dislocation transmission line, which is characterized in that including at least two transmission lines (2) and at least one electromagnetism channel
(3)；The both ends of the surface in electromagnetism channel (3) are a flat surface a part of A and plane B respectively；Two input transmission lines (2) are respectively
It is connected to one in two end faces of electromagnetism channel (3) by one section；The electromagnetism channel (3) is by least one
Road is constituted, and at least one electromagnetic wave branch route the through-hole (31) that at least three is connected to along Y-direction and constitutes；The electromagnetism channel is most
Long length t is the projected length of the line for any two points being located on two end faces in the electromagnetism channel (3) in z-direction
Maximum value；The center operating frequency of the dislocation transmission line is defined as SQRT (f1*f2)；Wherein f1 be the dislocation transmission line most
Low working frequency, f2 are the maximum operating frequency of the dislocation transmission line, and SQRT is square root function；X-axis and Y-axis are located at the electromagnetism
In the plane of one end face in channel (3), and X-axis, Y-axis and Z axis meet the right-hand rule；The maximum width of arbitrary through-hole (31)
The maximum length that line between any two points on the through-hole (31) is projected in X-direction；The input terminal of input transmission line (2)
It is respectively defined as axis direction at its end face geometric center with the normal direction D and E of the end face of the output end of output transmission line (8)
And it is consistent with signal flow direction；The axis of two transmission lines (2) is staggered distance greatly on a direction of its cross section
In any one transmission line (2) in this direction maximum sized 1/20, the input transmission line (2) be different transmission
Line, or be coaxial line or rectangular coaxial line or rectangular waveguide or single ridge rectangular waveguide or double ridge rectangular waveguides or four ridge squares
Shape waveguide or square wave guide or cross waveguide or elliptical waveguide or single ridge elliptical waveguide or double ridge elliptical waveguides or four ridges are ellipse
Circular waveguide or substrate integration wave-guide (SIW) or microstrip line or with line or complanar line or fin line or ridge gap waveguide (Ridge
Gap Waveguide) etc.；The output transmission line (8) is different transmission line, or for coaxial line or rectangular coaxial line or
Rectangular waveguide or single ridge rectangular waveguide or double ridge rectangular waveguides or four ridge rectangular waveguides or square wave guide or cross waveguide or
Elliptical waveguide or single ridge elliptical waveguide or double ridge elliptical waveguides or four ridge elliptical waveguides or substrate integration wave-guide (SIW), or
Microstrip line or with line or complanar line or fin line or ridge gap waveguide (Ridge Gap Waveguide).
2. a kind of general dislocation transmission line according to claim 1, which is characterized in that at least one electromagnetism channel
Maximum length t is less than 0.2 times of the wavelength in the corresponding free space of center operating frequency of the dislocation transmission line.
3. a kind of general dislocation transmission line according to claim 1, which is characterized in that the electromagnetism channel includes at least one
Branch, the branch route 3 through-holes (31) along Y-direction connection and constitute；Along Y-direction, the maximum width of each through-hole is sequentially reduced,
Then increase.
4. a kind of general dislocation transmission line according to claim 1, which is characterized in that described to include at least to electromagnetism channel
One branch, the branch route 5 through-holes (31) along Y-direction connection and constitute；Along Y-direction, the maximum width of each through-hole increases successively
Greatly, reduce, increase, reduce.
5. a kind of general dislocation transmission line according to claim 1, which is characterized in that described to include at least to electromagnetism channel
One branch, the branch route 7 through-holes (31) along Y-direction connection and constitute；Along Y-direction, the maximum width of each through-hole increases successively
Greatly, reduce, reduce, increase, increase, reduce.
6. a kind of general dislocation transmission line according to claim 1, which is characterized in that described to include at least to electromagnetism channel
One branch, the branch route 9 through-holes (31) along Y-direction connection and constitute；Along Y-direction, the maximum width of each through-hole increases successively
Greatly, increase, reduce, reduce, increase, increase, reduce, reduce.
7. a kind of general dislocation transmission line according to claim 1, which is characterized in that at least one curb Z axis
It rotates by a certain angle.
8. a kind of general dislocation transmission line according to claim 1, which is characterized in that the electromagnetism channel includes three branch
Road, cross-sectional shape are X-shaped.
9. a kind of general dislocation transmission line according to claim 1, which is characterized in that described electromagnetism channel or so mirror image pair
Title or/and upper and lower mirror symmetry.
10. according to a kind of general dislocation transmission line described in any one of claim 1-9, which is characterized in that at least one institute
The cross-sectional shape for stating through-hole (31) is rectangle, and each rectangular through-hole (31) is connected to by its adjacent edge in the Y direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272767.8A CN108461882A (en) | 2018-03-29 | 2018-03-29 | A kind of general dislocation transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272767.8A CN108461882A (en) | 2018-03-29 | 2018-03-29 | A kind of general dislocation transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108461882A true CN108461882A (en) | 2018-08-28 |
Family
ID=63238177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810272767.8A Withdrawn CN108461882A (en) | 2018-03-29 | 2018-03-29 | A kind of general dislocation transmission line |
Country Status (1)
| Country | Link |
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| CN (1) | CN108461882A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3686589A (en) * | 1969-09-23 | 1972-08-22 | Georg Spinner | Waveguide transition |
| EP2493007A1 (en) * | 2010-02-16 | 2012-08-29 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
| US20150357698A1 (en) * | 2013-01-10 | 2015-12-10 | Nec Corporation | Wideband transition between a planar transmission line and a waveguide |
-
2018
- 2018-03-29 CN CN201810272767.8A patent/CN108461882A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3686589A (en) * | 1969-09-23 | 1972-08-22 | Georg Spinner | Waveguide transition |
| EP2493007A1 (en) * | 2010-02-16 | 2012-08-29 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
| US20150357698A1 (en) * | 2013-01-10 | 2015-12-10 | Nec Corporation | Wideband transition between a planar transmission line and a waveguide |
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Application publication date: 20180828 |
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| WW01 | Invention patent application withdrawn after publication |