CN107732394A - A kind of ultra-wideband orthogonal mode coupler - Google Patents
A kind of ultra-wideband orthogonal mode coupler Download PDFInfo
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- CN107732394A CN107732394A CN201711056313.9A CN201711056313A CN107732394A CN 107732394 A CN107732394 A CN 107732394A CN 201711056313 A CN201711056313 A CN 201711056313A CN 107732394 A CN107732394 A CN 107732394A
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- port
- polarised directions
- metal separation
- ultra
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a kind of ultra-wideband orthogonal mode coupler.The coupler one end is the public port being made up of circular waveguide or square waveguide, the other end is the V polarised directions port that is made up of rectangular waveguide, be provided between public port and V polarised directions port by rectangular waveguide form perpendicular to the H polarised directions port of public port and V polarised directions port；The first metal separation diaphragm is provided with the center line of public port wave-guide cavity wave, the root of the first metal separation diaphragm is connected with outer wall of the H polarised directions port waveguide close to public port side, and the width of the first metal separation diaphragm tapers into from root to end；The second metal separation diaphragm is provided with the center line of V polarised directions port wave-guide cavity wave, the root of second metal separation diaphragm is connected with outer wall of the H polarised directions port waveguide close to V polarised directions port side, and the width at second each position of metal separation diaphragm is consistent.For the present invention while with ultra wide band characteristic, its difficulty of processing and manufacturing cost are relatively low.
Description
Technical field
The present invention relates to a kind of orthomode coupler, more particularly to a kind of ultra-wideband orthogonal mode coupler, belong to microwave and lead to
Believe technical field.
Background technology
Orthomode coupler（OMT）It is a kind of conventional device in microwave communication, its major function is polarization separation effect.
The generally used form of orthomode coupler has window coupled mode and metallic membrane separation polarization at present；Others are also
Useful more draw points separate polarization.The wherein OMT of window coupled mode is because its is simple in construction, and reliability is high, and cost is low,
It is the most frequently used form in line communication, almost all of commercial communication is all using the OMT of this kind of form, but its relative bandwidth one
As be no more than 20%.Diaphragm separation polarization in theory if enough small of diaphragm thickness, bandwidth can meet full frequency band, but
That diaphragm thickness is smaller, its processing cost is higher, and reliability is also lower, in actual use relative bandwidth typically not over 35%,
It is complete in current civilian microwave telecommunication system and because diaphragm needs the later stage to be welded with soldering processes, its cost is high, and uniformity is low
Do not use on a large scale entirely.Other OMT such as draw points separation polarization and balanced type equally exist reliability and
The problem of cost is higher, almost it can't see completely in actual use.
The content of the invention
The technical problems to be solved by the invention are to overcome prior art insufficient, there is provided a kind of ultra-wideband orthogonal mode coupling
Device, while having ultra wide band characteristic, its difficulty of processing and manufacturing cost again can be with the orthomode couplers of window coupled mode
Compare favourably.
It is of the invention specifically to solve above-mentioned technical problem using following technical scheme：
A kind of ultra-wideband orthogonal mode coupler, the coupler one end are the common port being made up of circular waveguide or square waveguide
Mouthful, the other end is the V polarised directions port being made up of rectangular waveguide, is provided between public port and V polarised directions port
By rectangular waveguide form perpendicular to the H polarised directions port of public port and V polarised directions port；In public port waveguide cavity
The first metal separation diaphragm is provided with the center line of body, root and the port waveguide of H polarised directions of the first metal separation diaphragm are leaned on
The outer wall connection of nearly public port side, the width of the first metal separation diaphragm taper into from root to end；In V polarization sides
The second metal separation diaphragm, root and the H polarization sides of the second metal separation diaphragm are provided with to the center line of port wave-guide cavity wave
Connected to the outer wall of the close V polarised directions port side of port waveguide, the width at second each position of metal separation diaphragm keeps one
Cause.
Preferably, the width of the first metal separation diaphragm tapers into from root to end is stepped；Or first gold medal
The width that category separates diaphragm tapers into from root to end in arc-shaped.
Preferably, H polarised directions port passes through 90 degree of turning structures of rectangular waveguide with ladder gradual change and public port and V
Polarised direction port connects；Or H polarised directions port by with tilt gradual change 90 degree of turning structures of rectangular waveguide with it is public
Port connects with V polarised directions port.
Preferably, all waveguide turnings all match output by the step grading structure with chamfering；It is or all
Waveguide turning is all by tilting grading structure matching output.
Preferably, the ultra-wideband orthogonal mode coupler is formed by two component combinations, the first metal separation diaphragm and
Second metal separation diaphragm is integrally formed with one of part.
Compared with prior art, technical solution of the present invention has the advantages that：
The present invention has and can cover full wave ultra wide band characteristic, while has the advantages of simple in construction again, can be completely by machinery
Processing obtains each part, assembled between part it is simple and convenient, in the absence of diaphragm assembling and the problem of soldering, therefore its difficulty of processing
Can match in excellence or beauty the orthomode coupler of window coupled mode completely with production cost and reliability.
Brief description of the drawings
Fig. 1, Fig. 2 are the inside dimensional structure diagram of one specific embodiment of ultra-wideband orthogonal mode coupler of the present invention；
Fig. 3, Fig. 4 are respectively top view, the upward view of the ultra-wideband orthogonal mode coupler of specific embodiment；
Fig. 5, Fig. 6 are that the part of the ultra-wideband orthogonal mode coupler of specific embodiment forms structural representation；
Fig. 7 is the echo response curve of the ultra-wideband orthogonal mode coupler of specific embodiment.
Reference implication is as follows in figure：
1st, public port, 2, H polarised directions port, 3, V polarised directions port, the 4, first metal separation diaphragm, the 5, second metal
Separate diaphragm, 6, grading structure.
Embodiment
Technical scheme is described in detail below in conjunction with the accompanying drawings：
Fig. 1, Fig. 2 be one specific embodiment of ultra-wideband orthogonal mode coupler of the present invention inside dimensional structure diagram, Fig. 3,
Fig. 4 is respectively the top view of the specific embodiment, upward view.As shown in Figure 1 to 4, the one of the ultra-wideband orthogonal mode coupler
Hold as public port 1, for inputting or exporting the signal for including horizontal and vertical two polarised directions；The other end is V polarization sides
To port 3, for inputting or exporting vertical polarization directions signal；It is provided between public port 1 and V polarised directions port 3
Perpendicular to the H polarised directions port 2 of public port 1 and V polarised directions port 3, for input or output level polarised direction letter
Number.It is seen that the overall structure of orthomode coupler of the present invention is "T"-shaped similar to one.
Wherein, public port 1 can be made up of circular waveguide or square waveguide, and H polarised directions port 2 and V polarization
Direction port 3 is then the rectangular waveguide of standard.As shown in Figure 1 to 4, the H polarised directions port 2 in the present embodiment passes through band rank
90 degree of turning structures of rectangular waveguide of terraced gradual change are connected with public port 1 and V polarised directions port 3, actually can also pass through band
The 90 degree of turning structures of rectangular waveguide for tilting gradual change are connected with public port 1 and V polarised directions port 3.6 in figure be by nonstandard
Quasi- port is changed into the grading structure of standard rectangular waveguide.The first metal is provided with the center line of the wave-guide cavity wave of public port 1
Separate diaphragm 4, the outer wall of the root of the first metal separation diaphragm 4 with the waveguide of H polarised directions port 2 close to the side of public port 1
Connection, the width of the first metal separation diaphragm 4 taper into from root to end；In the wave-guide cavity wave of V polarised directions port 3
The second metal separation diaphragm 5 is provided with line, the root of the second metal separation diaphragm 5 and the waveguide of H polarised directions port 2 are close to V
The outer wall connection of the side of polarised direction port 3, the width at 4 each position of the second metal separation diaphragm are consistent.First metal point
The width of diaphragm 4 can be from root to end in arc-shaped or it is stepped taper into, ladder is used in the present embodiment
Shape grading structure.
In order to further improve performance, all waveguide turnings all pass through the step with chamfering in the orthomode coupler
Grading structure matching output, can also use the step grading structure for tilting grading structure alternative belt chamfering.
As shown in Figure 5, Figure 6, the orthomode coupler of the present embodiment is made up of two bottom, lid parts, each part
All production can be integrally formed by machining, two parts can be assembled into completely by fixtures such as screw assembly or buckles
Orthomode coupler, therefore, production and installation cost it is extremely low.In the present embodiment, the first metal separation diaphragm 4 and the second metal
Separate diaphragm 5 to be integrally formed with one of part.So avoid the existing diaphragm separation orthogonal mode coupling of polarization
Diaphragm assembling present in device and the problem of soldering, significantly reduces production difficulty.
The polarization separation process of the orthomode coupler is specific as follows：Include the signal of horizontal and vertical two polarised directions
Inputted via public port 1, in the presence of the first metal separation diaphragm 4, the signal of vertical polarization directions is divided into left and right
Two-way transmits respectively, is then synthesized all the way under the effect of the second metal separation diaphragm 5, finally by logical after grading structure 6
V polarised directions port 3 is crossed to export；The signal of horizontal polarization directions is then exported by H polarised directions port 2.The anti-mistake of said process
To be exactly Polarization Coupling.
Different with the OMT of balanced type, two the vertical of the OMT, polarization channel designs are full symmetric（Balanced type two-way is different
Road between must have 90 degree of phase difference, pass through at port 180 anti-phase counteracting echoes）, this reduces design and processing
Difficulty, reduce cost accordingly, improve the economy and productibility of product.
Fig. 7 shows the echo response curve of the orthomode coupler, it can be seen that the orthomode coupler
There is preferable echo performance in the range of 10-15GHz, the orthomode coupler of other remote super existing schemes.
Claims (8)
1. a kind of ultra-wideband orthogonal mode coupler, it is characterised in that the coupler one end is by circular waveguide or square waveguide
The public port of composition, the other end is the V polarised directions port being made up of rectangular waveguide, in public port and V polarised directions end
Mouthful between be provided with by rectangular waveguide form perpendicular to the H polarised directions port of public port and V polarised directions port；In public affairs
The first metal separation diaphragm, root and the H polarization sides of the first metal separation diaphragm are provided with the center line of port wave-guide cavity wave altogether
Connected to the outer wall of the close public port side of port waveguide, the width of the first metal separation diaphragm gradually becomes from root to end
It is small；The second metal separation diaphragm, the root of the second metal separation diaphragm are provided with the center line of V polarised directions port wave-guide cavity wave
Portion is connected with outer wall of the H polarised directions port waveguide close to V polarised directions port side, second each position of metal separation diaphragm
Width is consistent.
2. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that the width of the first metal separation diaphragm is from root
Portion tapers into end is stepped.
3. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that the width of the first metal separation diaphragm is from root
Portion tapers into end in arc-shaped.
4. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that H polarised directions port by band ladder gradually
90 degree of turning structures of rectangular waveguide of change are connected with public port and V polarised directions port.
5. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that H polarised directions port is tilted gradually by band
90 degree of turning structures of rectangular waveguide of change are connected with public port and V polarised directions port.
6. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that all fallen by band at all waveguide turnings
The step grading structure matching output at angle.
7. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that all waveguide turnings all pass through inclination
Grading structure matching output.
8. ultra-wideband orthogonal mode coupler as claimed in claim 1, it is characterised in that the ultra-wideband orthogonal mode coupler is by two
Component combination is formed, and the first metal separation diaphragm and the second metal separation diaphragm are integrally formed with one of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056313.9A CN107732394A (en) | 2017-11-01 | 2017-11-01 | A kind of ultra-wideband orthogonal mode coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056313.9A CN107732394A (en) | 2017-11-01 | 2017-11-01 | A kind of ultra-wideband orthogonal mode coupler |
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| Publication Number | Publication Date |
|---|---|
| CN107732394A true CN107732394A (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711056313.9A Pending CN107732394A (en) | 2017-11-01 | 2017-11-01 | A kind of ultra-wideband orthogonal mode coupler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037875A (en) * | 2018-08-15 | 2018-12-18 | 上海航天电子通讯设备研究所 | The contactless coaxial transformational structure of end face feed waveguide |
| CN112563710A (en) * | 2020-12-07 | 2021-03-26 | 江苏亨通太赫兹技术有限公司 | E-band orthogonal mode coupler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162808A (en) * | 1990-12-18 | 1992-11-10 | Prodelin Corporation | Antenna feed with selectable relative polarization |
| US5392008A (en) * | 1993-04-22 | 1995-02-21 | Hughes Aircraft Company | Orthomode transducer with side-port window |
| US6496084B1 (en) * | 2001-08-09 | 2002-12-17 | Andrew Corporation | Split ortho-mode transducer with high isolation between ports |
| CN203674349U (en) * | 2013-11-15 | 2014-06-25 | 深圳国人通信股份有限公司 | Orthogonal mode converter |
| CN106410349A (en) * | 2016-10-26 | 2017-02-15 | 中国科学院新疆天文台 | Q-waveband ridge transition ortho-mode transducer |
| CN207426100U (en) * | 2017-11-01 | 2018-05-29 | 江苏贝孚德通讯科技股份有限公司 | A kind of ultra-wideband orthogonal mode coupler |
-
2017
- 2017-11-01 CN CN201711056313.9A patent/CN107732394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162808A (en) * | 1990-12-18 | 1992-11-10 | Prodelin Corporation | Antenna feed with selectable relative polarization |
| US5392008A (en) * | 1993-04-22 | 1995-02-21 | Hughes Aircraft Company | Orthomode transducer with side-port window |
| US6496084B1 (en) * | 2001-08-09 | 2002-12-17 | Andrew Corporation | Split ortho-mode transducer with high isolation between ports |
| CN203674349U (en) * | 2013-11-15 | 2014-06-25 | 深圳国人通信股份有限公司 | Orthogonal mode converter |
| CN106410349A (en) * | 2016-10-26 | 2017-02-15 | 中国科学院新疆天文台 | Q-waveband ridge transition ortho-mode transducer |
| CN207426100U (en) * | 2017-11-01 | 2018-05-29 | 江苏贝孚德通讯科技股份有限公司 | A kind of ultra-wideband orthogonal mode coupler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037875A (en) * | 2018-08-15 | 2018-12-18 | 上海航天电子通讯设备研究所 | The contactless coaxial transformational structure of end face feed waveguide |
| CN112563710A (en) * | 2020-12-07 | 2021-03-26 | 江苏亨通太赫兹技术有限公司 | E-band orthogonal mode coupler |
| CN112563710B (en) * | 2020-12-07 | 2022-02-01 | 江苏亨通太赫兹技术有限公司 | E-band orthogonal mode coupler |
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Application publication date: 20180223 |
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