CN108539346A - A kind of line adapter unit - Google Patents
A kind of line adapter unit Download PDFInfo
- Publication number
- CN108539346A CN108539346A CN201810272755.5A CN201810272755A CN108539346A CN 108539346 A CN108539346 A CN 108539346A CN 201810272755 A CN201810272755 A CN 201810272755A CN 108539346 A CN108539346 A CN 108539346A
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- CN
- China
- Prior art keywords
- transmission line
- line
- ridge
- waveguide
- electromagnetic wave
- 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
- H01P5/00—Coupling devices of the waveguide type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/082—Transitions between hollow waveguides of different shape, e.g. between a rectangular and a circular waveguide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced with unbalanced lines or devices
- H01P5/103—Hollow-waveguide/coaxial-line transitions
Abstract
The invention discloses a kind of line adapter units, interconnect the electromagnetic wave channel of composition using multiple rectangles or other shapes of through-hole to match the transmission line of various different structures.Compared with existing similar scheme, its modeling optimization computational efficiency can be significantly improved.The volume smaller and bandwidth of operation of this line adapter unit are wider.Present invention is mainly used in the communication and radar system of each electromagnetic wave, 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 compact line adapter unit.
Background technology
In various electromagnetic wave systems, the switching problem generally existing of various transmission lines.Between traditional different transmission lines
Switching frequently with more piece transmission line matching way, often save level-one of the transmission line as impedance transformer, length is its waveguide wave
Long 1/4.Since the wavelength of the transmission line of general microwave frequency is long, especially in low frequency microwave frequency range, routine techniques is led
Cause the volume of adapter bigger.
Invention content
The technical problem to be solved by the present invention is to a kind of compact line adapter units, compared with prior art, structure
Simpler, processing is more convenient, working frequency is wider.
The present invention is achieved through the following technical solutions：
A kind of line adapter unit, including a transmission line, another transmission line and at least one electromagnetic wave channel.Arbitrarily
The both ends of the surface in one electromagnetic wave channel are a flat surface a part of A and plane B respectively.One end and one of each transmission line
One end connection in electromagnetic wave channel.The arbitrary electromagnetic wave channel is made of at least one branch.At least one branch is route
At least three is constituted along the through-hole 31 that Y-direction is connected to.
Preferably design：The number of the microwave channel is 2；One electromagnetic wave channel is by one end face and separately
One end face in one electromagnetic wave channel is connected to.
For the ease of ensureing that the machining accuracy of the line adapter unit, two microwave channels are arranged in the same gold
Belong on body.
The line adapter unit is closely：The maximum length t of the arbitrary microwave channel is less than the microwave matching knot
0.2 times of wavelength in the corresponding free space of center operating frequency of structure.
Preferably design：The number of the microwave channel is 2；One electromagnetic wave channel is by one end face and separately
One end face in one electromagnetic wave channel is connected to.
For the ease of ensureing that the machining accuracy of the line adapter unit, two microwave channels are arranged in the same gold
Belong on body.
The transmission line and transmission line are different transmission lines, including but not limited to coaxial line, rectangular coaxial line, rectangular wave
Lead, single ridge rectangular waveguide, double ridge rectangular waveguides, four ridge square wave guides, square wave guide, cross waveguide, elliptical waveguide, single ridge elliptical wave
Lead, double ridge elliptical waveguides, circular waveguide, single ridge circular waveguide, double ridge circular waveguides, four ridge circular waveguides, ridge gap waveguide etc..
Alternatively, the transmission line is single ridge rectangular waveguide；The metal ridge of a piece transmission line and the list ridge rectangular wave
The bottom for leading transmission line is connected；The metal ridge of another transmission line is connected with the top of the list ridge rectangular waveguide transmission line.
The line adapter unit realizes the switching of the single ridge rectangular waveguide of the opposite difference in metal ridge position.
Or a transmission line is single ridge rectangular waveguide；Another transmission line is double ridge rectangular waveguides；It is described
The metal ridge of single ridged waveguides transmission line is connected with the bottom of the single ridged waveguides transmission line；The gold of double ridge rectangular waveguide transmission lines
Belong to ridge to be respectively connected with the bottom and top of double ridge rectangular waveguide transmission lines.
Or a transmission line is coaxial transmission line；Another transmission line is rectangular waveguide.The transmission line
Adapter realizes coaxial line and the compact of rectangular waveguide is transferred.
Alternatively, a transmission line is cross waveguide；Another transmission line is four ridge square wave guides.
Alternatively, a transmission line is four ridge square wave guides；Another transmission line is circular waveguide.
Alternatively, a transmission line is square wave guide；Another transmission line is circular waveguide.
Alternatively, a transmission line is rectangular waveguide；Another transmission line is circular waveguide.
Alternatively, a transmission line is coaxial line；Another transmission line is rectangular coaxial line.
Alternatively, a transmission line is rectangular waveguide；Another transmission line is four ridge square wave guides.
Alternatively, a transmission line is rectangular waveguide；Another transmission line is cross waveguide.
Alternatively, a transmission line is ridge waveguide；Another transmission line is ridge gap waveguide.
Preferably design, the electromagnetic wave channel include at least a branch, which route 5 along the logical of Y-direction connection
Hole is constituted；Along Y-direction, the maximum width of each through-hole is sequentially increased, reduces, increases, reduces.
Alternatively, the electromagnetic wave channel includes at least a branch, which route the logical structure that at least seven is connected to along Y-direction
At；Along Y-direction, the maximum width of each through-hole is sequentially increased, reduces, reduces, increases, increases, reduces.
Alternatively, the electromagnetic wave channel includes at least a branch, which route 9 through-holes along Y-direction connection and constitutes；
Along Y-direction, the maximum width of each through-hole is sequentially increased, increases, reduces, reduces, increases, increases, reduces, reduces.
The electromagnetic wave channel or so mirror symmetry.
It the electromagnetic wave channel can also be at upper and lower mirror symmetry.
For the ease of modeling optimization, the cross-sectional shape of at least one through-hole 31 is rectangle.
Each rectangular through-hole is connected to by its adjacent edge in the Y direction.
Specific to the cross-sectional shape in every electromagnetism channel, can be respectively：Two electricity that mutually disconnected branch is constituted
Magnet passage, electromagnetism channel that two intersection branches are constituted, hollow, three cross one another branches constitute electromagnetism channel, rectangle
The left and right that through-hole is constituted and the electromagnetism channel symmetrical above and below etc. that all symmetrical electromagnetism channel and rectangular through-hole are constituted up and down.
The electromagnetic wave channel that the present invention interconnects composition using multiple rectangles or other shapes of through-hole is various to match
Transmission line.Compared with existing similar scheme, its modeling optimization computational efficiency can be significantly improved.This line adapter unit
Volume smaller and bandwidth of operation is wider.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the electromagnetism access diagram of the present invention.
Fig. 3 is two electromagnetism access diagrams of the present invention.
Fig. 4 a are the coaxial line schematic diagram of the present invention.
Fig. 4 b are the rectangular coaxial line schematic diagram of the present invention.
Fig. 4 c are the square wave guide schematic diagram of the present invention.
Fig. 4 d are single ridge rectangular waveguide schematic diagram of the present invention.
Fig. 4 e are double ridge rectangular waveguide schematic diagrames of the present invention.
Fig. 4 f are the four ridge square wave guide schematic diagrames of the present invention.
Fig. 4 g are the square wave guide schematic diagram of the present invention.
Fig. 4 h are the cross waveguide schematic diagram of the present invention.
Fig. 4 i are the elliptical waveguide schematic diagram of the present invention.
Fig. 4 j are single ridge elliptical waveguide schematic diagram of the present invention.
Fig. 4 k are double ridge elliptical waveguide schematic diagrames of the present invention.
Fig. 4 l are the circular waveguide schematic diagram of the present invention.
Fig. 4 m are single ridge circular waveguide schematic diagram of the present invention.
Fig. 4 n are double ridge circular waveguide schematic diagrames of the present invention.
Fig. 4 o are the four ridge circular waveguide schematic diagrames of the present invention.
Fig. 5 a are the schematic diagram of the present invention-embodiment 1.
Fig. 5 b are the schematic diagram of the present invention-embodiment 1.
Fig. 5 c are the schematic diagram of the present invention-embodiment 1.
Fig. 5 d are the schematic diagram of the present invention-embodiment 1.
Fig. 6 is the schematic diagram of the present invention-embodiment 2.
Fig. 7 is the electromagnetism access diagram of the present invention-embodiment 2.
Fig. 8 is 2 four ridge square wave guide schematic diagram of the present invention-embodiment.
Fig. 9 is the schematic diagram of the present invention-embodiment 3.
Figure 10 is an electromagnetism access diagram of the present invention-embodiment 3.
Figure 11 is another electromagnetism access diagram of the present invention-embodiment 3.
Figure 12 is the schematic diagram of the present invention-embodiment 4.
Figure 13 is an electromagnetism access diagram of the present invention-embodiment 4.
Figure 14 is another electromagnetism access diagram of the present invention-embodiment 4.
Figure 15 is the schematic diagram of the present invention-embodiment 5.
Figure 16 is the electromagnetism access diagram of the present invention-embodiment 5.
Figure 17 is double ridge rectangular waveguide schematic diagrames of the present invention-embodiment 5.
Figure 18 is the schematic diagram of the present invention-embodiment 6.
Figure 19 is the electromagnetism access diagram of the present invention-embodiment 6.
Figure 20 is the coaxial line schematic diagram of the present invention-embodiment 6.
Figure 21 is the schematic diagram of the present invention-embodiment 7.
Figure 22 is the electromagnetism access diagram of the present invention-embodiment 7.
Figure 23 is the rectangular coaxial line schematic diagram of the present invention-embodiment 7.
Figure 24 is the electromagnetism access diagram of the branch of the present invention.
Figure 25 is the electromagnetism access diagram that two intersection branches of the present invention are constituted.
Figure 26 is two electromagnetism access diagrams that mutually disconnected branch is constituted of the present invention.
Figure 27 is two intersection branches composition of the present invention, hollow electromagnetism access diagram.
Figure 28 is 8 schematic diagram of the present invention-embodiment.
Figure 29 is 8 schematic diagram of the present invention-embodiment.
Figure 30 is 8 schematic diagram of the present invention-embodiment.
Label and corresponding parts title in attached drawing：
2- transmission lines, 21- coaxial inner conductors, 22- metal ridges, 3- electromagnetism channel, 31- through-holes.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
Such as Fig. 1~3, shown in Fig. 4 a~4o, Fig. 5 a~5d.
Fig. 4 a~4o are existing transmission line sectional view.
A kind of line adapter unit, including a transmission line 2, another transmission line 2 and to an electromagnetic wave channel 3.It should
The both ends of the surface in electromagnetic wave channel 3 are a flat surface a part of A and plane B respectively.One end of described each two transmission lines 2 point
It is not connected to the one end in electromagnetic wave channel 3.
The line adapter unit is closely：The maximum length t of the microwave channel is less than the microwave matching structure
0.2 times of wavelength in the corresponding free space of center operating frequency.
The transmission line 2 is single ridge rectangular waveguide；The metal ridge 22 of a piece transmission line 2 and the list ridge rectangular waveguide
The bottom of transmission line 2 is connected；The top phase of the metal ridge 22 of another transmission line 2 and the list ridge rectangular waveguide transmission line 2
Even.The line adapter unit realizes the switching of the single ridge rectangular waveguide of the opposite difference in metal ridge position.
The electromagnetic wave channel includes a branch, which route 5 through-holes 31 along Y-direction connection and constitute；Along the side Y
To the maximum width of each through-hole is sequentially increased, reduces, increases, reduces.
The electromagnetic wave channel or so mirror symmetry.
The cross-sectional shape of 5 through-holes 31 is rectangle.
Each rectangular through-hole 31 is connected to by its adjacent edge in the Y direction.
Embodiment 2
As shown in figs 6-8.
This embodiment is differed only in embodiment 1：
A piece transmission line 2 is cross waveguide, and another transmission line is four ridge square wave guides.
One electromagnetic wave channel 3 is connected to by one end face with an end face in another electromagnetic wave channel 3.
Two electromagnetic wave channels, about 3 mirror symmetry.The area of section in electromagnetic wave channel 3 can be designed as along center
It is sequentially reduced, increases, reduces and reduces to edge.The transmission wiring connector in 1.48 millimeters of length range 19.6~
The reflectance factor of the electromagnetic wave of vertical polarization is set to be less than -20dB in the frequency range of 23.3GHz.Meanwhile making the electromagnetic wave of horizontal polarization
Reflectance factor be less than -20dB.It is carefully inquired according to us, similar routine techniques, which has no, to be delivered.
Embodiment 3
As shown in figs. 9-11.
This embodiment and the main distinction of embodiment 2 are only that：
Two electromagnetism channels have been used between two transmission lines.
Two microwave channels are arranged on the same metallic object.
A piece transmission line 2 is four ridge square wave guides, and another transmission line 2 is circular waveguide.
The outer edge setting in electromagnetism channel is located at bulge-structure so that length model of the transmission wiring connector at 4.03 millimeters
The reflectance factor for enclosing the electromagnetic wave for making vertical polarization and horizontal polarization in the range of 19.6~31GHz of inherence is below -30dB.According to
We carefully inquire, and similar routine techniques, which has no, to be delivered.
Embodiment 4
As shown in figs. 12-14.
This embodiment and the main distinction of embodiment 2 are only that：
Two electromagnetism channels have been used between two transmission lines.
Two microwave channels are arranged on the same metallic object.
A piece transmission line 2 is rectangular waveguide, and another transmission line 2 is circular waveguide.Electromagnetism channel 3 is set as H-type, makes
Two electromagnetism for obtaining respectively 4 millimeters and 2 millimeters of the elongated degree of the transmission wiring connector wealth are sensible in the range of 19.6~31GHz
The reflectance factor of the electromagnetic wave of vertical polarization is set to be less than -30dB.
Embodiment 5
As seen in figs. 15-17.
This embodiment and the main distinction of embodiment 2 are only that：
A piece transmission line 2 is single ridge rectangular waveguide, and another transmission line 2 is double ridge rectangular waveguides.Electromagnetism channel 3
Area of section is sequentially increased, increases, increases, increases, reduces, reduces, reduces from inside to outside so that the transmission wiring connector
The reflectance factor of the electromagnetic wave of vertical polarization is set to be less than -30dB in 0.42 millimeter of length range in the range of 15~45GHz.According to
We carefully inquire, and similar routine techniques, which has no, to be delivered.
Embodiment 6
As depicted in figures 18-20.
This embodiment and the main distinction of embodiment 2 are only that：The area of section in electromagnetism channel 3 is from inside to outside successively
Reduce, increase, increase, reduce, increase, reduce, reduce so that a transmission line 2 is BJ320 rectangular waveguides, Ling Yigen
Transmission line 2 is coaxial line.
The transmission wiring connector makes the reflection of the electromagnetic wave of vertical polarization in the full bandwidth working range of 26.3~40GHz
Coefficient is less than -13.5dB.The maximum length in electromagnetism channel is 2.34 millimeters.This switching of ordinary skill at least needs 20 millimeters
It is long.The technical advantage of the present invention is apparent.
Embodiment 7
As shown in figures 21-23.
This embodiment and the main distinction of embodiment 2 are only that：
A piece transmission line 2 is coaxial line, and another transmission line 2 is rectangular coaxial line.Electromagnetism channel 3 is set as more
A channel towards 3 barycenter of electromagnetism channel, and there are protrusion is arranged in the outer rim in multiple channels.The transmission wiring connector 4~
The reflectance factor of electromagnetic wave is set to be less than -18dB in the range of 40GHz.
Notice that the shape in electromagnetism channel at this moment is more complicated.The maximum length in electromagnetism channel is 1.2 millimeters.
Embodiment 7
As shown in Figure 24-30.
Specific to the cross-sectional shape in every electromagnetism channel, can be respectively：Two electricity that mutually disconnected branch is constituted
Magnet passage 3, electromagnetism channel 3 that two intersection branches are constituted, hollow, three cross one another branches constitute electromagnetism channel 3, square
The left and right that shape through-hole 31 is constituted and the electromagnetism symmetrical above and below that all symmetrical electromagnetism channel 3 and rectangular through-hole 31 are constituted up and down are logical
Road 3.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of line adapter unit, which is characterized in that including two transmission lines (2) and at least one electromagnetic wave channel (3)；
The both ends of the surface in electromagnetic wave channel (3) are a flat surface a part of A and plane B respectively；One end of each transmission line (2) with
One end connection of one electromagnetic wave channel (3)；The arbitrary electromagnetic wave channel (3) is made of at least one branch, and at least one
The branch route the through-hole (31) that at least three is connected to along Y-direction and constitutes；The maximum length t in the electromagnetic wave channel is to be located at
The maximum value of the projected length of the line between any two points in z-direction on the electromagnetic wave channel end faces Liang Ge；
The center operating frequency of the line adapter unit is defined as SQRT (f1*f2)；Wherein f1 be the line adapter unit most
Low working frequency, f2 are the maximum operating frequency of the line adapter unit, and SQRT is square root function；X-axis and Y-axis are in electromagnetic wave
In the plane of one end face in channel (3), and X-axis, Y-axis and Z axis meet the right-hand rule；The electromagnetic wave channel (3) is in XY
Section in plane is its cross section；The maximum width of arbitrary through-hole (31) is the line between any two points on the through-hole 31
In the maximum length of X-direction projection；The method of the end face of the input terminal of input transmission line (2) and the output end of output transmission line (8)
Line direction D and E is respectively defined as at its end face geometric center axis direction and consistent with signal flow direction.
2. a kind of line adapter unit according to claim 1, which is characterized in that the number of the electromagnetic wave channel (3)
It is two；One electromagnetic wave channel (3) is connected by one end face and an end face of another electromagnetic wave channel (3)
It is logical；Two electromagnetic wave channel (3) is arranged on the same metallic object.
3. a kind of line adapter unit according to claim 1, which is characterized in that at least one microwave channel most greatly enhances
Spend the wavelength that t is less than in the corresponding free space of center operating frequency of the microwave matching structure 0.2 times.
4. a kind of line adapter unit according to claim 1, which is characterized in that two transmission lines (2) are difference
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 square wave guides or square wave guide or cross waveguide or elliptical waveguide or single ridge elliptical waveguide or double ridge elliptical waveguides or circle
Waveguide or single ridge circular waveguide or double ridge circular waveguides or four ridge circular waveguides or ridge gap waveguide.
5. a kind of line adapter unit according to claim 1, which is characterized in that two transmission lines (2) are list
Ridge rectangular waveguide；The metal ridge (22) of a piece transmission line (2) is connected with the bottom of the transmission line (2)；Another biography
The metal ridge (22) of defeated line (2) is connected with the top of the transmission line (2).
6. a kind of line adapter unit according to claim 1, which is characterized in that a transmission line (2) is single ridge
Rectangular waveguide, metal ridge (22) are connected with the bottom of the list ridge rectangular waveguide transmission line (2)；Another transmission line (2)
For double ridge rectangular waveguides, two metal ridge (22) is connected with the bottom and top of double ridge rectangular waveguide transmission lines (2) respectively.
7. a kind of line adapter unit according to claim 1, which is characterized in that two transmission lines can be following group
It closes：
A piece transmission line (2) is coaxial transmission line, and another transmission line (2) is rectangular waveguide；
Or a transmission line (2) is cross waveguide, another transmission line (2) is four ridge square wave guides；
Or a transmission line (2) is four ridge square wave guides, another transmission line (2) is circular waveguide；
Or a transmission line (2) is square wave guide, another transmission line (2) is circular waveguide；
Or a transmission line (2) is rectangular waveguide, another transmission line (2) is circular waveguide；
Or a transmission line (2) is coaxial line, another transmission line (2) is rectangular coaxial line；
Or a transmission line (2) is rectangular waveguide, another transmission line (2) is four ridge square wave guides；
Or a transmission line (2) is rectangular waveguide, another transmission line (2) is cross waveguide；
Or a transmission line (2) is ridge waveguide, another transmission line (2) is ridge gap waveguide.
8. a kind of line adapter unit according to claim 1, which is characterized in that the electromagnetic wave channel includes at least one
Branch, when branch, which route 5 through-holes (31) along Y-direction connection, to be constituted, along Y-direction, the maximum width of each through-hole increases successively
Greatly, reduce, increase, reduce；It is constituted when branch route the through-hole (31) that at least seven is connected to along Y-direction；
When along Y-direction, the maximum width of each through-hole is sequentially increased, reduces, reduces, increases, increases, reduces；When branch route 9 edges
When the through-hole (31) of Y-direction connection is constituted；
Along Y-direction, the maximum width of each through-hole is sequentially increased, increases, reduces, reduces, increases, increases, reduces, reduces.
9. a kind of line adapter unit according to claim 1, which is characterized in that described electromagnetic wave channel or so mirror image pair
Title or upper and lower mirror symmetry.
10. a kind of line adapter unit according to claim 1, which is characterized in that at least one through-hole (31)
Cross-sectional shape is rectangle；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 |
|---|---|---|---|
| CN201810272755.5A CN108539346A (en) | 2018-03-29 | 2018-03-29 | A kind of line adapter unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272755.5A CN108539346A (en) | 2018-03-29 | 2018-03-29 | A kind of line adapter unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108539346A true CN108539346A (en) | 2018-09-14 |
Family
ID=63482477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810272755.5A Withdrawn CN108539346A (en) | 2018-03-29 | 2018-03-29 | A kind of line adapter unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108539346A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3686589A (en) * | 1969-09-23 | 1972-08-22 | Georg Spinner | Waveguide transition |
| WO2010106198A1 (en) * | 2009-03-18 | 2010-09-23 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
| EP2493007A1 (en) * | 2010-02-16 | 2012-08-29 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
-
2018
- 2018-03-29 CN CN201810272755.5A patent/CN108539346A/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 |
| WO2010106198A1 (en) * | 2009-03-18 | 2010-09-23 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
| EP2493007A1 (en) * | 2010-02-16 | 2012-08-29 | Radiacion Y Microondas, S.A. | Polarisation rotator with multiple bowtie-shaped sections |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180914 |
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| WW01 | Invention patent application withdrawn after publication |