CN108682930B - Terminating waveguide transition device - Google Patents
Terminating waveguide transition device Download PDFInfo
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- CN108682930B CN108682930B CN201810384845.3A CN201810384845A CN108682930B CN 108682930 B CN108682930 B CN 108682930B CN 201810384845 A CN201810384845 A CN 201810384845A CN 108682930 B CN108682930 B CN 108682930B
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- 230000007704 transition Effects 0.000 title claims abstract description 36
- 239000004020 conductor Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000011900 installation process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
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
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- Waveguide Aerials (AREA)
Abstract
The invention relates to a terminating waveguide transition device which is suitable for microwave multipath communication, satellite communication ground stations and millimeter wave systems and is used for testing and connecting elliptical waveguides and elliptical waveguide leaky cables in the communication field. The device comprises a coaxial elliptical waveguide converter, an elliptical waveguide fixing block and an elliptical waveguide mounting seat; the terminated coaxial elliptical waveguide converter is connected with the elliptical waveguide mounting seat through corresponding connecting through holes; the end-connected coaxial elliptical waveguide converter comprises a coaxial connector, a waveguide ridge, an elliptical cavity seat, a first connecting flange, an air tap hole and an air tap nut; one end of the elliptical cavity seat is provided with a coaxial connector, the coaxial connector consists of a coaxial outer conductor and a coaxial inner conductor, the elliptical cavity seat is provided with an elliptical waveguide cavity, and a waveguide ridge is arranged in the elliptical waveguide cavity; the elliptical waveguide mounting seat is provided with an elliptical waveguide mounting seat main body, and the elliptical waveguide mounting seat main body is provided with an elliptical waveguide fixing block mounting groove; the elliptical waveguide fixing block is arranged in the elliptical waveguide fixing block mounting groove.
Description
Technical Field
The invention relates to a terminating waveguide transition device which is suitable for microwave multipath communication, satellite communication ground stations and millimeter wave systems and is used for testing and connecting elliptical waveguides and elliptical waveguide leaky cables in the communication field.
Background
As the transmission frequency increases, the conductor loss of the coaxial cable and the leaky cable and the loss of the filling medium thereof are also increased due to the structural limitation of the coaxial cable, and the transmission loss of the coaxial cable and the leaky cable is increased, so that the coaxial cable and the leaky cable are not suitable for high-frequency long-distance communication such as 5G.
The elliptical waveguide feeder line/waveguide leakage cable is widely applied to microwave multipath communication and millimeter wave systems because of the advantages of small high-frequency loss, relatively stable waveform polarization surface, easy matching connection with rectangular waveguide or coaxial cable, large-length manufacture of 500m and above, good bending performance and the like. At present, two transition processes are needed for the termination waveguide transition device of the elliptical waveguide with the coaxial port and the waveguide port on a straight line, namely, the elliptical waveguide is firstly transited to the rectangular waveguide, and then the rectangular waveguide is transited to the coaxial connector, so that the structural design is complicated, the processing cost is high, and the installation process is complex.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a terminating waveguide transition device which directly converts coaxial TEM mode signals into elliptical waveguides through stepped ridges and stepsTE c11 The mode signal not only reduces the intermediate transition process and transition devices of the rectangular waveguide and greatly reduces the production cost and simplifies the processing and installation processes, but also has better attenuation performance due to the shortening of the intermediate transition distance. The stepped impedance transformation structure of the waveguide ridge can greatly improve impedance matching and expand working bandwidth, so that the device has better transmission performance. Meanwhile, the coaxial port and the waveguide port are on the same straight line, and the termination structure is more beneficial to construction and installation and waterproof sealing treatment.
The invention is realized by adopting the following technical scheme:
a terminating waveguide transition structure comprises a terminating coaxial elliptical waveguide converter, an elliptical waveguide fixing block and an elliptical waveguide mounting seat; the end-connected coaxial elliptical waveguide converter is connected with the elliptical waveguide mounting seat through a connecting through hole corresponding to the connecting flange.
The end-connected coaxial elliptical waveguide converter comprises a coaxial connector, a waveguide ridge, an elliptical cavity seat, a first connecting flange, an air tap opening and an air tap nut. One end of the elliptical cavity seat is provided with a coaxial connector, and the coaxial connector consists of a coaxial outer conductor and a coaxial inner conductor; an elliptical waveguide cavity is arranged in the elliptical cavity seat, a waveguide ridge is arranged in the elliptical waveguide cavity, a coaxial inner conductor is arranged in the coaxial outer conductor, and the coaxial inner conductor is connected with the waveguide ridge; the other end of the elliptic cavity seat is provided with a first connecting flange, one side of the first connecting flange is provided with an air tap hole, and the air tap hole is provided with an air tap nut for inflation; the first connecting flange is provided with a first connecting through hole.
The elliptical waveguide mounting seat is provided with an elliptical waveguide mounting seat main body, and an elliptical waveguide mounting hole is formed in the elliptical waveguide mounting seat main body.
An elliptical waveguide fixing block mounting groove is formed in the elliptical waveguide mounting seat main body, and the elliptical waveguide fixing block is fixedly arranged in the elliptical waveguide fixing block mounting groove after fixing the elliptical waveguide.
One end of the elliptical waveguide mounting seat main body is provided with a second connecting flange, and the second connecting flange is provided with a second connecting through hole.
The coaxial elliptical waveguide converter is connected with the elliptical waveguide mounting seat in a butt joint mode through a first connecting through hole of the first connecting flange and a second connecting through hole of the second connecting flange.
Working principle:
in practical use, the coaxial TEM mode is directly transited to the elliptical waveguide through the impedance transformation of the steps of the stepped ridge waveguideTE c11 Mode, thereby converting the coaxial signal into a waveguide signal.
Compared with the prior art, the invention has the following advantages:
1. the invention can realize the direct transition of the elliptical waveguide to the coaxial connector, not only reduces the intermediate transition process and transition devices of the rectangular waveguide and greatly reduces the production cost, but also simplifies the processing and installation processes, and has better attenuation performance due to the shortening of the intermediate transition distance;
2. the stepped impedance transformation structure of the waveguide ridge greatly improves impedance matching and expands working bandwidth, so that the device has better transmission performance. Meanwhile, the coaxial connector port and the waveguide port are on the same straight line, and the termination structure is more beneficial to construction and installation and waterproof sealing treatment.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a terminated waveguide transition;
FIG. 2 is a side view of a terminated coaxial elliptical waveguide converter terminating a waveguide transition;
FIG. 3 is a side view of an elliptical waveguide mount terminating a waveguide transition;
fig. 4 is a side view of an elliptical waveguide mounting block terminating a waveguide transition.
In the figure: 1. the device comprises an elliptical cavity seat, 2, a first connecting flange, 3, an air tap opening, 4, an air tap nut, 5, a coaxial outer conductor, 6, a coaxial inner conductor, 7, an elliptical waveguide cavity, 8, a waveguide ridge, 9, a first connecting through hole, 10, an elliptical waveguide mounting seat main body, 11, an elliptical waveguide mounting hole, 12, an elliptical waveguide fixing block mounting groove, 13, a second connecting flange, 14, a second connecting through hole, 15, a semi-elliptical fixing block, 16, a third connecting through hole, 17, a semi-elliptical notch, 18, a thread groove, 19, a sealing ring, 20 and a threaded hole.
Detailed Description
Referring to fig. 1-4, a terminated waveguide transition structure includes a terminated coaxial elliptical waveguide transition, an elliptical waveguide mounting block, and an elliptical waveguide mount; the end-connected coaxial elliptical waveguide converter is connected with the elliptical waveguide mounting seat through a connecting through hole corresponding to the connecting flange.
The termination coaxial elliptical waveguide converter comprises a coaxial connector, a waveguide ridge 8, an elliptical cavity seat 1, a connecting flange I2, an air tap opening 3 and an air tap nut 4. One end of the elliptical cavity seat 1 is provided with a coaxial connector, the coaxial connector consists of a coaxial outer conductor 5 and a coaxial inner conductor 6, an elliptical waveguide cavity 7 is arranged in the elliptical cavity seat 1, a waveguide ridge 8 is arranged in the elliptical waveguide cavity 7, the coaxial inner conductor 6 is arranged in the coaxial outer conductor 5, and the coaxial inner conductor 6 is connected with the waveguide ridge 8; the other end of the elliptic cavity seat 1 is provided with a first connecting flange 2, one side of the first connecting flange 2 is provided with an air tap opening 3, and the air tap opening 3 is provided with an air tap nut 4 for inflating; the first connecting flange 2 is provided with a first connecting through hole 9.
The elliptical waveguide mount has an elliptical waveguide mount body 10, and an elliptical waveguide mounting hole 11 is provided in the elliptical waveguide mount body 10.
An elliptical waveguide fixing block mounting groove 12 is formed in the elliptical waveguide mounting seat main body 10, and the elliptical waveguide is fixed by the elliptical waveguide fixing block and then is mounted in the elliptical waveguide fixing block mounting groove 12.
One end of the elliptical waveguide mounting seat main body 10 is provided with a second connecting flange 13, and the second connecting flange 13 is provided with a second connecting through hole 14.
The end-connected coaxial elliptical waveguide converter is in butt joint with the elliptical waveguide mounting seat through a first connecting through hole 9 of the first connecting flange 2 and a second connecting through hole 14 of the second connecting flange 13.
The waveguide ridge 8 is provided with a step ridge step for directly converting a coaxial TEM mode into an elliptical waveguideTE c11 And modes, and intermediate transition processes and transition devices of the rectangular waveguide are reduced. The signal is fed to the elliptical waveguide through the waveguide ridge ladder impedance transformation node, so that the direct transition from the coaxial to the elliptical waveguide is realized.
The elliptic waveguide fixing block is formed by buckling two semi-elliptic fixing blocks 15. The semi-elliptical fixing block 15 is semi-annular, and a third connecting through hole 16 is formed in the end face of the semi-elliptical fixing block 15.
The inner side of the semi-elliptical fixing block 15 is provided with a semi-elliptical notch 17, and the inner side of the semi-elliptical notch 17 of the semi-elliptical fixing block 15 is provided with a thread groove 18 so as to realize accurate positioning of an elliptical waveguide in the elliptical waveguide fixing block and play a fastening role. The elliptical waveguide fixing block is provided with an annular groove, and a sealing ring 19 is arranged in the annular groove to avoid difficult assembly caused by machining errors.
Two threaded holes 20 are formed in the inner side of the elliptical waveguide fixing block mounting groove 12 of the elliptical waveguide mounting seat main body 10, when the two semi-elliptical fixing blocks 15 are buckled, a complete elliptical waveguide fixing block is formed, and the complete elliptical waveguide fixing block is fixed through the connecting through holes III 16 and the threaded holes 20 by adopting screws and is mounted in the elliptical waveguide fixing block mounting groove 12.
The three connecting through holes II 14 on the connecting flange II 13 of the elliptical waveguide mounting seat are matched with the three connecting through holes I9 on the connecting flange I2 of the terminated coaxial elliptical waveguide converter, and are fixedly connected through connecting bolts, so that the elliptical waveguide mounting seat and the terminated coaxial elliptical waveguide converter are connected together.
The invention not only reduces the intermediate transition process and the transition device of the rectangular waveguide, greatly reduces the production cost and simplifies the processing and installation processes, but also has better attenuation performance due to the shortening of the intermediate transition distance. The stepped impedance transformation structure of the waveguide ridge greatly improves impedance matching and expands working bandwidth, so that the device has better transmission performance. Meanwhile, the coaxial port and the waveguide port are on the same straight line, and the termination structure is more beneficial to construction and installation and waterproof sealing treatment.
Claims (6)
1. A terminated waveguide transition, characterized by: the device comprises a coaxial elliptical waveguide converter, an elliptical waveguide fixing block and an elliptical waveguide mounting seat; the coaxial elliptical waveguide converter is connected with the elliptical waveguide mounting seat through a connecting through hole corresponding to the connecting flange;
the end-connected coaxial elliptical waveguide converter comprises a coaxial connector, a waveguide ridge, an elliptical cavity seat, a first connecting flange, an air tap hole and an air tap nut; one end of the elliptical cavity seat is provided with a coaxial connector, the coaxial connector consists of a coaxial outer conductor and a coaxial inner conductor, an elliptical waveguide cavity is arranged in the elliptical cavity seat, a waveguide ridge is arranged in the elliptical waveguide cavity, the coaxial inner conductor is arranged in the coaxial outer conductor, and the coaxial inner conductor is connected with the waveguide ridge; the other end of the elliptic cavity seat is provided with a first connecting flange, one side of the first connecting flange is provided with an air tap hole, and the air tap hole is provided with an air tap nut for inflation;
the elliptical waveguide mounting seat is provided with an elliptical waveguide mounting seat main body, and an elliptical waveguide mounting hole is formed in the elliptical waveguide mounting seat main body;
an elliptical waveguide fixing block mounting groove is formed in the elliptical waveguide mounting seat main body, and the elliptical waveguide fixing block is used for fixing the elliptical waveguide and then is arranged in the elliptical waveguide fixing block mounting groove;
the first connecting flange on the elliptical cavity seat connected with the coaxial elliptical waveguide converter is provided with a first connecting through hole; one end of the elliptical waveguide mounting seat main body is provided with a second connecting flange, and the second connecting flange is provided with a second connecting through hole; the first connecting through holes are matched with the second connecting through holes on the first connecting flange of the coaxial elliptical waveguide converter, and are fixedly connected through connecting bolts, so that the elliptical waveguide mounting seat is connected with the coaxial elliptical waveguide converter;
the waveguide ridge is provided with a step ridge step, a coaxial TEM mode is directly converted into a TEc mode of the elliptical waveguide, intermediate transition processes and transition devices of the rectangular waveguide are reduced, signals are fed to the elliptical waveguide through the waveguide ridge step impedance transformation node, and the coaxial direct transition to the elliptical waveguide is realized.
2. A terminating waveguide transition as set forth in claim 1, wherein: the end-connected coaxial elliptical waveguide converter is in opposite connection with the elliptical waveguide mounting seat through a first connecting through hole of the first connecting flange and a second connecting through hole of the second connecting flange.
3. A terminating waveguide transition as set forth in claim 1, wherein: the elliptic waveguide fixing block is formed by buckling two semi-elliptic fixing blocks, the semi-elliptic fixing blocks are semi-annular, and the end face of each semi-elliptic fixing block is provided with a third connecting through hole.
4. A terminating waveguide transition as defined in claim 3, wherein: the inner side of the semi-elliptical fixing block is provided with a semi-elliptical notch, and the inner side of the semi-elliptical notch of the semi-elliptical fixing block is provided with a thread groove so as to realize the accurate positioning of the elliptical waveguide in the elliptical waveguide fixing block and play a fastening role.
5. A terminating waveguide transition as set forth in claim 1, wherein:
the elliptical waveguide fixing block is provided with an annular groove, and a sealing ring is arranged in the annular groove so as to avoid difficult assembly caused by machining errors.
6. A terminating waveguide transition as defined in claim 3, wherein: the inner side of an elliptical waveguide fixing block mounting groove of the elliptical waveguide mounting seat main body is provided with two threaded holes, when two semi-elliptical fixing blocks are buckled, a complete elliptical waveguide fixing block is formed, and the elliptical waveguide fixing block is fixed by adopting screws through a connecting through hole III and the threaded holes and is mounted in the elliptical waveguide fixing block mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384845.3A CN108682930B (en) | 2018-04-24 | 2018-04-24 | Terminating waveguide transition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384845.3A CN108682930B (en) | 2018-04-24 | 2018-04-24 | Terminating waveguide transition device |
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| Publication Number | Publication Date |
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| CN108682930A CN108682930A (en) | 2018-10-19 |
| CN108682930B true CN108682930B (en) | 2024-03-26 |
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| CN201810384845.3A Active CN108682930B (en) | 2018-04-24 | 2018-04-24 | Terminating waveguide transition device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786920A (en) * | 2019-03-25 | 2019-05-21 | 北京无线电测量研究所 | A kind of circular polarisation TE21Mode coupler structure |
| CN110112524A (en) * | 2019-05-15 | 2019-08-09 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of elliptical waveguide coaxial converter |
| CN110048203A (en) * | 2019-05-15 | 2019-07-23 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of elliptical waveguide load |
| CN111799537A (en) * | 2020-06-29 | 2020-10-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Millimeter wave high-power ultra-wideband waveguide coupling device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293573A (en) * | 1964-03-25 | 1966-12-20 | Telefunken Patent | Coaxial to elliptical waveguide coupling |
| GB1281100A (en) * | 1969-09-19 | 1972-07-12 | Licentia Gmbh | Broadband terminal output of a coaxial line into a wave-guide |
| WO1992015125A1 (en) * | 1991-02-13 | 1992-09-03 | Quasar Microwave Technology Limited | Elliptical waveguide |
| CN1337077A (en) * | 1999-01-08 | 2002-02-20 | 信道控制有限公司 | Multi-frequency antenna feed |
| CN101414700A (en) * | 2008-08-12 | 2009-04-22 | 北京航空航天大学 | Novel short millimeter waveband step moment round transition |
| CN102683767A (en) * | 2011-12-01 | 2012-09-19 | 成都九洲迪飞科技有限责任公司 | Structure for axial direct transition of coaxial line transverse electric and magnetic field (TEM) mode to circular waveguide H11 mode |
| CN103268971A (en) * | 2013-04-28 | 2013-08-28 | 中国电子科技集团公司第三十八研究所 | Miniaturization device for converting end feeding type coaxial line to circular waveguide |
| CN105304995A (en) * | 2015-10-10 | 2016-02-03 | 成都赛纳赛德科技有限公司 | Ultrawide-band coaxial ridge waveguide adapter |
| CN106653523A (en) * | 2016-12-16 | 2017-05-10 | 电子科技大学 | Output device of TE1,1 mode gyro traveling wave tube |
| CN107634296A (en) * | 2017-09-01 | 2018-01-26 | 西北核技术研究所 | High-Power Microwave TE11Mould polarized rotation synthesizer and polarized rotation synthetic method |
| CN107742766A (en) * | 2017-11-15 | 2018-02-27 | 中天射频电缆有限公司 | A kind of elliptical waveguide connector |
| CN208226059U (en) * | 2018-04-24 | 2018-12-11 | 中天射频电缆有限公司 | A kind of termination Waveguide transitions |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE523920T1 (en) * | 2006-01-20 | 2011-09-15 | Alcatel Lucent | HIGH FREQUENCY WAVEGUIDE WITH ELECTRICAL CONDUCTOR MADE OF A PLASTIC FILM COATED WITH A CONDUCTIVE LAYER |
| US7893789B2 (en) * | 2006-12-12 | 2011-02-22 | Andrew Llc | Waveguide transitions and method of forming components |
-
2018
- 2018-04-24 CN CN201810384845.3A patent/CN108682930B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293573A (en) * | 1964-03-25 | 1966-12-20 | Telefunken Patent | Coaxial to elliptical waveguide coupling |
| GB1281100A (en) * | 1969-09-19 | 1972-07-12 | Licentia Gmbh | Broadband terminal output of a coaxial line into a wave-guide |
| WO1992015125A1 (en) * | 1991-02-13 | 1992-09-03 | Quasar Microwave Technology Limited | Elliptical waveguide |
| CN1337077A (en) * | 1999-01-08 | 2002-02-20 | 信道控制有限公司 | Multi-frequency antenna feed |
| CN101414700A (en) * | 2008-08-12 | 2009-04-22 | 北京航空航天大学 | Novel short millimeter waveband step moment round transition |
| CN102683767A (en) * | 2011-12-01 | 2012-09-19 | 成都九洲迪飞科技有限责任公司 | Structure for axial direct transition of coaxial line transverse electric and magnetic field (TEM) mode to circular waveguide H11 mode |
| CN103268971A (en) * | 2013-04-28 | 2013-08-28 | 中国电子科技集团公司第三十八研究所 | Miniaturization device for converting end feeding type coaxial line to circular waveguide |
| CN105304995A (en) * | 2015-10-10 | 2016-02-03 | 成都赛纳赛德科技有限公司 | Ultrawide-band coaxial ridge waveguide adapter |
| CN106653523A (en) * | 2016-12-16 | 2017-05-10 | 电子科技大学 | Output device of TE1,1 mode gyro traveling wave tube |
| CN107634296A (en) * | 2017-09-01 | 2018-01-26 | 西北核技术研究所 | High-Power Microwave TE11Mould polarized rotation synthesizer and polarized rotation synthetic method |
| CN107742766A (en) * | 2017-11-15 | 2018-02-27 | 中天射频电缆有限公司 | A kind of elliptical waveguide connector |
| CN208226059U (en) * | 2018-04-24 | 2018-12-11 | 中天射频电缆有限公司 | A kind of termination Waveguide transitions |
Non-Patent Citations (3)
| Title |
|---|
| Investigation of thick coax-to-waveguide transitions;N. Tako 等;《The 8th European Conference on Antennas and Propagation (EuCAP 2014)》;20140918;全文 * |
| Ka波段TE01模圆波导弯头的研究;胡小军;《万方学位论文》;20160603;全文 * |
| 椭圆同轴双开槽线的精确分析;吴显鼎;《郑州大学学报》;19880701(第2期);全文 * |
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