CN108539342A - A kind of rectangular waveguide dislocation transmission line - Google Patents
A kind of rectangular waveguide dislocation transmission line Download PDFInfo
- Publication number
- CN108539342A CN108539342A CN201810271822.1A CN201810271822A CN108539342A CN 108539342 A CN108539342 A CN 108539342A CN 201810271822 A CN201810271822 A CN 201810271822A CN 108539342 A CN108539342 A CN 108539342A
- Authority
- CN
- China
- Prior art keywords
- transmission line
- rectangular waveguide
- hole
- electromagnetism
- dislocation
- 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.)
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Classifications
-
- 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
- H01P3/12—Hollow waveguides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
Abstract
The invention discloses a kind of rectangular waveguide 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.At least one is rectangular waveguide in two transmission lines.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 rectangular waveguide dislocation transmission line, including at least two transmission lines and at least one electromagnetism channel;Electromagnetism channel
Both ends of the surface be a flat surface a part of A and plane B respectively;Two input transmission lines pass through one section and electricity respectively
A connection in two end faces of magnet passage;The electromagnetism channel is made of at least one branch, at least one electromagnetic wave branch
Routing 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;Appoint
The maximum width of meaning through-hole is the maximum length that the line between any two points on the through-hole is projected in X-direction;Input transmission
The normal direction D and E of the end face of the input terminal of line and the output end of output transmission line are respectively defined as at its end face geometric center
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.
More typical design, at least one is rectangular waveguide in two transmission lines.C
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 Y-direction connection
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.
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 rectangular waveguide dislocation transmission line, including two transmission lines 2 and an electromagnetism channel 3;The both ends in electromagnetism channel 3
Face is a flat surface a part of A and plane B respectively;Two input transmission lines 2 are logical by one section and electromagnetism respectively
A connection in two end faces in road 3;The electromagnetism channel 3 is made of a branch, this electromagnetic wave branch route 7 along Y
The through-hole 31 of direction connection 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.
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)
- The transmission line 1. a kind of rectangular waveguide misplaces, which is characterized in that logical including at least two transmission lines (2) and at least one electromagnetism Road (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) point It is not connected to one in two end faces of electromagnetism channel (3) by one section;The electromagnetism channel (3) is by least one Branch 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 Maximum length t is that the projection of the line for any two points being located on two end faces in the electromagnetism channel (3) in z-direction is grown The maximum value of degree;The center operating frequency of the dislocation transmission line is defined as SQRT (f1*f2);Wherein f1 is the dislocation transmission line Lowest operating 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 electricity In the plane of one end face of magnet passage (3), and X-axis, Y-axis and Z axis meet the right-hand rule;The maximum of arbitrary through-hole (31) is wide Degree is the maximum length that the line between any two points on the through-hole (31) is projected in X-direction;The input of input transmission line (2) The normal direction D and E of the end face of the output end of end and output transmission line (8) are respectively defined as axis side at its end face geometric center To and with signal flow direction it is consistent;The axis of two transmission lines (2) is staggered distance on a direction of its cross section More than any one transmission line (2) in this direction maximum sized 1/20, at least one is in two transmission lines (2) Rectangular waveguide.
- The transmission line 2. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that at least one electromagnetism is logical The maximum length t in road is less than 0.2 times of the wavelength in the corresponding free space of center operating frequency of the dislocation transmission line.
- The transmission line 3. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that at least wrap in the electromagnetism channel A branch is included, which route 3 through-holes (31) along Y-direction connection and constitute;Along Y-direction, the maximum width of each through-hole is successively Reduce, then increases.
- The transmission line 4. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that it is described to electromagnetism channel at least Including a branch, which route 5 through-holes (31) along Y-direction connection and constitutes;Along Y-direction, the maximum width of each through-hole according to It is secondary to increase, reduce, increasing, reducing.
- The transmission line 5. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that it is described to electromagnetism channel at least Including a branch, which route 7 through-holes (31) along Y-direction connection and constitutes;Along Y-direction, the maximum width of each through-hole according to It is secondary to increase, reduce, reducing, increasing, increasing, reducing.
- The transmission line 6. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that it is described to electromagnetism channel at least Including a branch, which route 9 through-holes (31) along Y-direction connection and constitutes;Along Y-direction, the maximum width of each through-hole according to It is secondary to increase, increase, reducing, reducing, increasing, increasing, reducing, reducing.
- The transmission line 7. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that at least one curb Z axis rotates by a certain angle.
- The transmission line 8. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that the electromagnetism channel includes three Branch, cross-sectional shape are X-shaped.
- The transmission line 9. a kind of rectangular waveguide according to claim 1 misplaces, which is characterized in that described electromagnetism channel or so mirror As symmetrical or/and upper and lower mirror symmetry.
- 10. according to a kind of rectangular waveguide dislocation transmission line described in any one of claim 1-9, which is characterized in that at least one The cross-sectional shape of a 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)
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CN201810271822.1A CN108539342A (en) | 2018-03-29 | 2018-03-29 | A kind of rectangular waveguide dislocation transmission line |
Applications Claiming Priority (1)
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CN201810271822.1A CN108539342A (en) | 2018-03-29 | 2018-03-29 | A kind of rectangular waveguide dislocation transmission line |
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CN108539342A true CN108539342A (en) | 2018-09-14 |
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CN201810271822.1A Withdrawn CN108539342A (en) | 2018-03-29 | 2018-03-29 | A kind of rectangular waveguide dislocation transmission line |
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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 CN201810271822.1A patent/CN108539342A/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: 20180914 |
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