CN107134621A - Improve the waveguide coupler of Coupling flatness - Google Patents
Improve the waveguide coupler of Coupling flatness Download PDFInfo
- Publication number
- CN107134621A CN107134621A CN201710329327.7A CN201710329327A CN107134621A CN 107134621 A CN107134621 A CN 107134621A CN 201710329327 A CN201710329327 A CN 201710329327A CN 107134621 A CN107134621 A CN 107134621A
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- coaxial
- coupling
- diameter
- resonant cavity
- waveguide
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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
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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Abstract
The present invention is improves the waveguide coupler of Coupling flatness, and the coupled signal amplitude versus frequency characte for solving traditional waveguide coupler extraction is bad, the problem of Coupling flatness is low.Middle part above rectangular waveguide is with coupling pipe（7）Connection, the outlet of coupling pipe is coupled output ports（5）, the bottom surface of coaxial resonant cavity has coaxial through hole to be connected with rectangular waveguide tube cavity, and junction is coupling regime in the middle part of rectangular waveguide tube cavity（2）, the coaxial through hole is coaxial coupling aperture（3）, have inner wire probe on the coaxial line of coaxial resonant cavity and coaxial coupling aperture（8）Inner wire probe is fixed on coupled output ports by commercial K-type connector, naturally it is suspended in the middle of coaxial resonant cavity and coaxial coupling aperture, its length is the height sum of coaxial resonant cavity and coaxial coupling aperture, the diameter of inner wire probe is less than the diameter of coaxial coupling aperture, and the diameter of coaxial coupling aperture is less than the diameter of coaxial resonant cavity.
Description
Technical field
The present invention is relevant with the waveguide coupler for extracting portion of energy in waveguide in waveguide transmission system.
Background technology
Middle part above the rectangular tube of conventional waveguide coupler is connected with coupling pipe, couples bottom surface and the rectangular tube of tube cavity
Upper wall below it is coplanar, without coaxial resonant cavity, coupling aperture size as coaxial line can not thus form resonance frequency
Rate, also can not just screen band connection frequency.The coupled signal amplitude versus frequency characte that traditional waveguide coupler is extracted is bad, and the degree of coupling is not
Become big with frequency dullness, exactly diminish with frequency dullness.Coupling flatness is low, and its Coupling flatness has reached 0.286dB.
The content of the invention
It is an object of the invention to provide one kind it is simple in construction, can screen band connection frequency, coupler center frequency is in passband
At coupling characteristic extreme value, the high waveguide coupler of Coupling flatness.
What the present invention was realized in：
Rectangular waveguide left end of the present invention is waveguide input port 1, and right-hand member is the middle part and coupling above waveguide mouthful 6, rectangular waveguide
Close pipe 7 to connect, the inner chamber of coupling pipe 7 is coaxial resonant cavity 4, and the outlet of coupling pipe 7 is coupled output ports 5, coaxial resonant cavity 4
Bottom surface for rectangular waveguide upper wall above, there are coaxial through hole and rectangular waveguide tube cavity in the bottom surface of coaxial resonant cavity 4
Connection, junction is coupling regime 2 in the middle part of rectangular waveguide tube cavity, and coaxial through hole is coaxial coupling aperture 3, coaxial resonant cavity 4
And have inner wire probe 8 on the coaxial line of coaxial coupling aperture 3, inner wire probe 8 is fixed on coupling output by commercial K-type connector
Port 5, is suspended in the middle of coaxial resonant cavity 4 and coaxial coupling aperture 3 naturally, and its length is coaxial resonant cavity 4 and coaxial coupling aperture 3
Height sum, the diameter of inner wire probe 8 is less than the diameter of coaxial coupling aperture 3, and the diameter of coaxial coupling aperture 3 is less than coaxial humorous
Shake the diameter of chamber 4.
A diameter of 0.64mm of inner wire probe 8, a diameter of 1.5mm of coaxial coupling aperture 3, the diameter of coaxial resonant cavity 4
For 3mm, rectangular waveguide tube cavity size is 7.11 × 3.56mm.
The achievable beneficial effect of the present invention：
1st, it is simple in construction, band connection frequency can be screened；
2nd, the problem of solving the signal that is extracted in waveguide coupler often amplitude versus frequency characte is bad, Coupling flatness is high, 29.4
Coupling flatness has reached 0.0062dB in~31GHz frequency range.
Brief description of the drawings
Fig. 1 is structure chart of the present invention.
Fig. 2 is the coupled characteristic figure of conventional waveguide coupler.
Fig. 3 is coupled characteristic figure of the invention.
Embodiment
Rectangular waveguide left end is waveguide input port 1, and right-hand member is middle part above waveguide mouthfuls 6, rectangular waveguide with coupling
Pipe 7 is connected, and the inner chamber of coupling pipe 7 is coaxial resonant cavity 4, and the outlet of coupling pipe 7 is coupled output ports 5, coaxial resonant cavity 4
Bottom surface is that above the upper wall of rectangular waveguide, the bottom surface of coaxial resonant cavity 4 has coaxial through hole to connect with rectangular waveguide tube cavity
Logical, junction is coupling regime 2 in the middle part of rectangular waveguide tube cavity, and coaxial through hole is coaxial coupling aperture 3, the He of coaxial resonant cavity 4
There is inner wire probe 8 on the coaxial line of coaxial coupling aperture 3, inner wire probe 8 is fixed on coupled output by commercial K-type connector
Mouth 5, is suspended in the middle of coaxial resonant cavity 4 and coaxial coupling aperture 3 naturally, and its length is coaxial resonant cavity 4 and coaxial coupling aperture 3
Height sum, the diameter of inner wire probe 8 is less than the diameter of coaxial coupling aperture 3, and the diameter of coaxial coupling aperture 3 is less than coaxial resonance
The diameter of chamber 4.
A diameter of 0.64mm of inner wire probe 8, a diameter of 1.5mm of coaxial coupling aperture 3, the diameter of coaxial resonant cavity 4
For 3mm, rectangular waveguide tube cavity size is 7.11 × 3.56mm.
Microwave signal is transmitted to coupling regime 2 by waveguide input port 1, is then coupled into together by coaxial coupling aperture 3
Axle resonator 4, coupling letter is extracted after band connection frequency needed for the resonance of coaxial resonant cavity 4 is filtered out by coupled output ports 5
Number；Output waveguide mouthful 6 transmits remaining main path signal to Wave guide system below.
Index request is as follows：
1. working frequency：29.4GHz~31GHz
2. the degree of coupling： 30dB±0.25dB
3. coupling output：2.92 connector
Therefore, by the present invention, Coupling flatness has reached 0.0062dB in 29.4~31GHz frequency range, completely full
Sufficient research and production requirement, and with simple in construction, small volume, lightweight, many technological merits such as machinability is good.
Claims (2)
1. improve the waveguide coupler of Coupling flatness, it is characterised in that rectangular waveguide left end is waveguide input port（1）, right-hand member
For waveguide mouthful（6）, the middle part above rectangular waveguide is with coupling pipe（7）Connection, the inner chamber of coupling pipe is coaxial resonant cavity（4）,
The outlet for coupling pipe is coupled output ports（5）, the bottom surface of coaxial resonant cavity for the upper wall of rectangular waveguide above, it is coaxial humorous
The shake bottom surface of chamber has coaxial through hole to be connected with rectangular waveguide tube cavity, and junction is coupling regime in the middle part of rectangular waveguide tube cavity
（2）, coaxial through hole is coaxial coupling aperture（3）, have inner wire probe on the coaxial line of coaxial resonant cavity and coaxial coupling aperture
（8）, inner wire probe is fixed on coupled output ports by commercial K-type connector, coaxial resonant cavity and coaxial coupling is suspended on naturally
Heal up centre, and its length is the height sum of coaxial resonant cavity and coaxial coupling aperture, and the diameter of inner wire probe is less than coaxial coupling
The diameter healed up, the diameter of coaxial coupling aperture is less than the diameter of coaxial resonant cavity.
2. the waveguide coupler according to claim 1 for improving Coupling flatness, it is characterised in that inner wire probe（8）'s
A diameter of 0.64mm, coaxial coupling aperture（3）A diameter of 1.5mm, coaxial resonant cavity（4）A diameter of 3mm, in rectangular waveguide
Chamber size is 7.11 × 3.56mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329327.7A CN107134621A (en) | 2017-05-11 | 2017-05-11 | Improve the waveguide coupler of Coupling flatness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329327.7A CN107134621A (en) | 2017-05-11 | 2017-05-11 | Improve the waveguide coupler of Coupling flatness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107134621A true CN107134621A (en) | 2017-09-05 |
Family
ID=59733080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710329327.7A Pending CN107134621A (en) | 2017-05-11 | 2017-05-11 | Improve the waveguide coupler of Coupling flatness |
Country Status (1)
| Country | Link |
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| CN (1) | CN107134621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780112A (en) * | 2019-10-25 | 2020-02-11 | 武汉滨湖电子有限责任公司 | High flatness power detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305000A (en) * | 1990-08-06 | 1994-04-19 | Gardiner Communications Corporation | Low loss electromagnetic energy probe |
| CN2582330Y (en) * | 2002-11-22 | 2003-10-22 | 中国科学院金属研究所 | High power micro-wave plasma torch |
| CN205406697U (en) * | 2016-03-04 | 2016-07-27 | 江苏德佐电子科技有限公司 | High -power rectangular waveguide coupler |
| US9509034B2 (en) * | 2014-11-17 | 2016-11-29 | City University Of Hong Kong | N-way coaxial waveguide power divider/combiner |
-
2017
- 2017-05-11 CN CN201710329327.7A patent/CN107134621A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305000A (en) * | 1990-08-06 | 1994-04-19 | Gardiner Communications Corporation | Low loss electromagnetic energy probe |
| CN2582330Y (en) * | 2002-11-22 | 2003-10-22 | 中国科学院金属研究所 | High power micro-wave plasma torch |
| US9509034B2 (en) * | 2014-11-17 | 2016-11-29 | City University Of Hong Kong | N-way coaxial waveguide power divider/combiner |
| CN205406697U (en) * | 2016-03-04 | 2016-07-27 | 江苏德佐电子科技有限公司 | High -power rectangular waveguide coupler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780112A (en) * | 2019-10-25 | 2020-02-11 | 武汉滨湖电子有限责任公司 | High flatness power detection device |
| CN110780112B (en) * | 2019-10-25 | 2022-06-28 | 武汉滨湖电子有限责任公司 | High flatness power detection device |
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Application publication date: 20170905 |