CN113612004A - Meter-waveband megawatt coaxial power combiner structure - Google Patents
Meter-waveband megawatt coaxial power combiner structure Download PDFInfo
- Publication number
- CN113612004A CN113612004A CN202110859022.3A CN202110859022A CN113612004A CN 113612004 A CN113612004 A CN 113612004A CN 202110859022 A CN202110859022 A CN 202110859022A CN 113612004 A CN113612004 A CN 113612004A
- Authority
- CN
- China
- Prior art keywords
- coaxial
- power
- megawatt
- port
- meter
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 230000005684 electric field Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 210000002381 plasma Anatomy 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- H01P5/12—Coupling devices having more than two ports
Landscapes
- Plasma Technology (AREA)
Abstract
The invention discloses a meter-waveband megawatt coaxial power combiner structure, which adopts an I-shaped four-port coaxial line structure, wherein an inner conductor and an outer conductor at a port adopt standard coaxial lines, an inner conductor in an I-shaped transition section adopts non-standard coaxial lines, an inner conductor in the I-shaped transition section adopts a slotted coaxial line structure, the reflection parameter of an input port of the structure is lower than-12 dB within the range of dozens of megahertz, when the power combiner combines 3 megawatt power, the maximum electric field is lower than 1MV/m, the low reflection power coefficient ensures the efficient power combination of a system, and the I-shaped meter-waveband megawatt coaxial power combiner has a compact and simple structure, and is beneficial to the application of a megawatt ion cyclotron heating system.
Description
Technical Field
The invention relates to the technical field of magnetic confinement ion cyclotron wave heating plasmas, in particular to a megawatt coaxial power synthesizer structure with a meter wave band, wherein megawatt power synthesis is carried out in an ion cyclotron frequency range, and the frequency range is dozens of megahertz.
Background
The ion temperature is required to exceed one hundred million degrees for the fusion of the plasma, ion cyclotron heating is the most effective method for improving the ion temperature, however, the maximum power capacity of a mature ion cyclotron frequency band transmitter is at the level of 1.5 megawatts, and the requirement of the plasma on the high power of the ion cyclotron is difficult to meet, so a power synthesis technology is required, and after two or more transmitters are synthesized, the high power exceeding 2 megawatts is provided for the ion cyclotron antenna. The difficulty of the megawatt-level tens of megahertz power synthesizer is that the wavelength of the working frequency range is 5-10 meters, and the power transmission adopts a coaxial line structure, if the traditional power synthesizer has the problem that the size is too large or the traditional power synthesizer cannot be butted with the coaxial line, such as patents CN112290181A, CN112290183A and CN112216943A, a compact power synthesizer needs to be designed for megawatt-level tens of megahertz.
Disclosure of Invention
In order to solve the problem of developing a high-power synthesis device with a coaxial line structure of dozens of megahertz, the invention provides a compact I-shaped meter-waveband megawatt coaxial power synthesizer structure by utilizing the property of a gap coaxial line, which is a coaxial power synthesizer with dozens of megahertz frequency bands, has the characteristics of low reflection and high transmission coefficient, and can effectively output power under the synthesis of 3 megawatt power.
In order to realize the purpose of the invention, the technical scheme is as follows: a meter-band megawatt coaxial power combiner structure comprises:
the I-shaped four-port coaxial structure is characterized in that an inner conductor and an outer conductor at the port are standard coaxial lines, and an inner conductor 2 of an I-shaped transition section is a non-standard coaxial line.
Further, the coaxial inner conductor 2 of the I-shaped transition section adopts a slotted coaxial structure.
Further, the input port has a reflection parameter lower than-12 dB in a range of several tens of mhz.
Furthermore, when the power synthesizer synthesizes 3 megawatts of power, the maximum electric field is lower than 1 MV/m.
The invention has the advantages that:
1. the port of the power synthesizer adopts a standard coaxial line, so that the power synthesizer is convenient to integrate and assemble with the conventional ion cyclotron system;
2. port scattering parameter S of input end of power synthesizer11Below-12 dB, the reflected power is sufficiently low;
3. the maximum electric field of each part of the power synthesizer is lower than 1MV/m under the condition of synthesizing 3 megawatt power level.
Drawings
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is a schematic diagram of the present invention;
FIG. 3 is a simulated port scattering parameter for the structure of the present invention;
FIG. 4 is a graph showing the electric field distribution of the inventive structure when synthesizing 3 megawatts of power.
Reference numerals:
1: an outer conductor; 2: an inner conductor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention are within the scope of the present invention without creative efforts.
Referring to the attached figure 1, the structure of the megawatt coaxial power combiner in the meter waveband has the characteristics of high-efficiency transmission and low electric field, and comprises an I-shaped four-port coaxial structure, wherein a coaxial outer conductor 1 is a standard transmission line, a coaxial inner conductor 2 is a standard transmission line at a port, and a slotted coaxial structure is adopted by the inner conductor between I-shaped bridges.
Referring to fig. 1 and fig. 2 of the drawings, when the phase difference between the 1-port feed power and the 2-port feed power is 90 degrees, when the 3-port power is the superposition of the 1-port power and the 2-port power, and the 4-port power is 0, the port is the superposition of the 1-port power and the 2-port power in completely opposite phases, so that the 3-port power has the function of power combination.
According to the structure, as shown in the attached drawing 3, the power of the port 1 is basically divided into the power of the port 3 and the power of the port 4, the reflection parameter of the port 1 fed with power is smaller than-12 dB, and the reflection power of the port 1 is small enough, so that the voltage of a transmission system is ensured to be lower than a breakdown threshold value after the power is fed in, as shown in the attached drawing 4, the maximum electric field is lower than 1MV/m under the condition that 1.5 megawatts is fed in the port 1 and the port 2 in a distributed mode, namely the synthesized power is 3 megawatts.
The invention has not been described in detail and is part of the common general knowledge of a person skilled in the art. The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and the preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments described. Various modifications and improvements of the technical solution of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solution of the present invention is to be covered by the protection scope defined by the claims.
Claims (4)
1. A kind of meter wave band megawatt level coaxial power synthesizer structure, characterized by that, including:
the I-shaped four-port coaxial structure is characterized in that the inner and outer conductors (2, 1) at the ports are standard coaxial wires, and the I-shaped transition section inner conductor (2) is a non-standard coaxial wire.
2. The megawatt coaxial power combiner structure in the meter band according to claim 1, wherein:
the coaxial line inner conductor (2) of the I-shaped transition section adopts a slotted coaxial line structure.
3. The megawatt coaxial power combiner structure in the meter band according to claim 1, wherein:
the input port has a reflection parameter lower than-12 dB in the range of tens of mhz.
4. The megawatt coaxial power combiner structure in the meter band according to claim 1, wherein:
when the power synthesizer synthesizes 3 megawatt power, the maximum electric field is lower than 1 MV/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859022.3A CN113612004A (en) | 2021-07-28 | 2021-07-28 | Meter-waveband megawatt coaxial power combiner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859022.3A CN113612004A (en) | 2021-07-28 | 2021-07-28 | Meter-waveband megawatt coaxial power combiner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113612004A true CN113612004A (en) | 2021-11-05 |
Family
ID=78305813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110859022.3A Pending CN113612004A (en) | 2021-07-28 | 2021-07-28 | Meter-waveband megawatt coaxial power combiner structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113612004A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0435503A (en) * | 1990-05-31 | 1992-02-06 | Shimada Phys & Chem Ind Co Ltd | Band splitting filter device |
| JP2000278010A (en) * | 1999-03-29 | 2000-10-06 | Kokusai Electric Co Ltd | Power combiner |
| CN104134843A (en) * | 2014-07-18 | 2014-11-05 | 中国电子科技集团公司第四十一研究所 | Low-frequency broadband multi-channel coaxial space power distribution synthesizer and method |
| CN205248410U (en) * | 2015-12-18 | 2016-05-18 | 天津光电通信技术有限公司 | Ware is divided to high power merit based on coaxial line |
| CN107132415A (en) * | 2017-05-05 | 2017-09-05 | 中国科学院合肥物质科学研究院 | Ion involution antenna impedance measuring system based on voltage probe and current probe |
| CN108987871A (en) * | 2018-08-30 | 2018-12-11 | 安徽禄讯电子科技有限公司 | A kind of coaxial line coupler |
| CN112103606A (en) * | 2020-09-08 | 2020-12-18 | 清华大学 | Adjustable coaxial line type power divider and using method |
-
2021
- 2021-07-28 CN CN202110859022.3A patent/CN113612004A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0435503A (en) * | 1990-05-31 | 1992-02-06 | Shimada Phys & Chem Ind Co Ltd | Band splitting filter device |
| JP2000278010A (en) * | 1999-03-29 | 2000-10-06 | Kokusai Electric Co Ltd | Power combiner |
| CN104134843A (en) * | 2014-07-18 | 2014-11-05 | 中国电子科技集团公司第四十一研究所 | Low-frequency broadband multi-channel coaxial space power distribution synthesizer and method |
| CN205248410U (en) * | 2015-12-18 | 2016-05-18 | 天津光电通信技术有限公司 | Ware is divided to high power merit based on coaxial line |
| CN107132415A (en) * | 2017-05-05 | 2017-09-05 | 中国科学院合肥物质科学研究院 | Ion involution antenna impedance measuring system based on voltage probe and current probe |
| CN108987871A (en) * | 2018-08-30 | 2018-12-11 | 安徽禄讯电子科技有限公司 | A kind of coaxial line coupler |
| CN112103606A (en) * | 2020-09-08 | 2020-12-18 | 清华大学 | Adjustable coaxial line type power divider and using method |
Non-Patent Citations (1)
| Title |
|---|
| 甘荣兵, 国防工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105304998B (en) | Novel broadband radial curve gradual change ridge space power distribution/synthesizer | |
| CN105390787B (en) | A kind of NEW TYPE OF COMPOSITE function gradual change millimeter waveguide power distribution synthesizer | |
| CN106997982B (en) | A kind of Klopfenstein impedance transition extension shaft power source distribution/synthesizer | |
| CN102832432A (en) | Radial linear power divider/synthesizer | |
| CN101699652B (en) | Symmetrical coupling wave-guided wave power synthesis amplifier | |
| CN107275741B (en) | Novel millimeter wave waveguide radial power synthesis circuit | |
| CN109713411B (en) | Microstrip dual-frequency broadband filter | |
| CN202363569U (en) | Broadband waveguide traveling wave power synthesis amplifier | |
| CN109361045B (en) | Miniaturized broadband high-power coupler | |
| CN206422210U (en) | A kind of high-isolation multichannel radial direction power divider/synthesizer | |
| CN102509838B (en) | Wideband working waveguide traveling wave power synthesis amplifier | |
| CN113745772A (en) | Rectangular waveguide TE 10-circular waveguide TM01 mode converter working in C wave band and conversion method | |
| CN103338017B (en) | A kind of 180 degree, the broadband with harmonic restraining function coupler of lumped parameter | |
| CN113659300A (en) | Broadband four-power divider | |
| CN206116581U (en) | Ware is divided to merit and subassembly thereof | |
| CN113612004A (en) | Meter-waveband megawatt coaxial power combiner structure | |
| CN201749928U (en) | Novel right bridge | |
| CN103346373A (en) | Lumped-parameter broadband 180-degree coupler | |
| CN109346810A (en) | A kind of 1/6th wavelength of 5G ultra wide band miniaturization power splitter design method | |
| CN113534056B (en) | Broadband millimeter wave second harmonic mixer | |
| CN111600103B (en) | Filter based on printed ridge gap waveguide | |
| CN201039100Y (en) | Coaxial high-power low pass filtering-resistance converter | |
| CN110890613B (en) | Ultra-wideband waveguide radial power combiner | |
| Jia et al. | Analysis of a passive spatial combiner using tapered slotline array in oversized coaxial waveguide | |
| CN201018578Y (en) | Microstrip technique broadband power distribution synthesizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |
|
| RJ01 | Rejection of invention patent application after publication |