CN105590819A - Mixed excitation system of full-chamber extraction relativistic magnetron - Google Patents
Mixed excitation system of full-chamber extraction relativistic magnetron Download PDFInfo
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- CN105590819A CN105590819A CN201610137109.9A CN201610137109A CN105590819A CN 105590819 A CN105590819 A CN 105590819A CN 201610137109 A CN201610137109 A CN 201610137109A CN 105590819 A CN105590819 A CN 105590819A
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- excitation system
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- magnetron
- relativistic magnetron
- permanent magnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
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Abstract
The invention discloses a mixed excitation system of a full-chamber extraction relativistic magnetron. The mixed excitation system comprises an anode outer cylinder and a cathode which is arranged in the anode outer cylinder. The cathode and the anode outer cylinder are coaxially arranged. An anode block is arranged between the cathode and the anode outer cylinder. A beam interaction area is arranged between the cathode and the anode block. An magnetic field coil sleeves the external surface of the anode outer cylinder. The mixed excitation system comprises a permanent magnet which is arranged between the anode outer cylinder and the cathode. According to the mixed excitation system, the permanent magnet is embedded into the magnetron, thereby sufficiently utilizing the inner space of the magnetron. The embedded permanent magnet effectively improves magnetic field at the end of the magnetic field coil. Through use of the embedded permanent magnet and the magnetic field coil, thereby realizing uniform distribution of the magnetic field in the interaction area, and furthermore realizing relatively low power consumption of the whole mixed excitation system of the full-chamber extraction relativistic magnetron.
Description
Technical field
The invention belongs to High-Power Microwave technical field, be specifically related to a kind of composite excitation system of full chamber extraction relativistic magnetron.
Background technology
High-Power Microwave has been along with plasma technique since 20 century 70s, the development of the progress of Pulse Power Techniques and computer particle simulation software and a research field developing rapidly, high-power microwave source is one of critical component in High Power Microwave System, relativistic magnetron (RM) is as a kind of typical high-power microwave source representative, simple in structure owing to having, operation magnetic field is low, possesses the ability of high power and repetition pulse work, also possesses the more powerful potential of the synthetic output of the phase-locked work of multitube simultaneously, thereby in widespread attention in the world. in order to improve the service behaviour of relativistic magnetron, researcher conducts extensive research its architectural feature, the people such as Greenwood and Hoff has proposed full chamber and has extracted axial export structure, this structure is connected with the form along center line symmetry magnetron adjacent resonators coupling aperture with a fan-shaped output waveguide, in the time that magnetron is operated in π mould, in fan-shaped output waveguide, will encourage TE11Mould. Compared with conventional radial output magnetron, this structure has the feature of symmetrical output, less on the impact of magnetron duty. Because output microwave axially transmits along fan-shaped waveguide, device radial dimension is less, is conducive to the magnet design of magnetron and realizes miniaturization.
Overwhelming majority high-power microwave source is mainly to utilize relativistic electron beam and microwave cavity to interact to produce High-Power Microwave output, in general its need of work externally-applied magnetic field constraint electron beam transmission. Existing externally-applied magnetic field mode utilizes magnetic field line bag or permanent magnet etc. to realize excitation, and different excitation modes has different features. Magnetic field line bag is actual use a kind of excitation mode comparatively widely, this is mainly because it has manufacturing technology maturation, with low cost, the advantages such as the uniform magnetic field of large-size can be provided, but it also has some self shortcoming, its energy consumption is higher, and high-octane power supply can increase the volume and weight of system, and this is unfavorable for the miniaturization of high-power microwave source. Permanent magnet has not consumed energy, stable magnetic field, high reliability can be provided, but permanent magnet cost is higher, and the magnetic field of permanent magnet is to be determined by self magnet structure and magnetic circuit magnetic conductance in addition, and after design moulding, its excitation is limited in scope, and is difficult to regulate.
Summary of the invention
The technical problem to be solved in the present invention is in order to make up the shortcoming of field coil, extract the architectural feature of relativistic magnetron in conjunction with full chamber, propose the mode of composite excitation, placed permanent magnets in the inside of relativistic magnetron, carried out excitation for auxiliary outside field coil. This cover composite excitation system has advantages of that volume is little, lightweight, energy consumption is low, can meet the demand of multiple mobile application platform.
Realizing technical scheme of the present invention is:
The composite excitation system of relativistic magnetron is extracted in a kind of full chamber, comprise anode urceolus and be arranged on the negative electrode in anode urceolus, negative electrode and positive electrode urceolus is coaxially set, between described negative electrode and positive electrode urceolus, be provided with anode block, between negative electrode and anode block, be bundle ripple mutual effect region, the outer tube outer surface cover of described anode has solenoid; Comprise the permanent magnet being arranged in anode urceolus and between negative electrode.
In technique scheme, described anode block is set to six, distributes along same even circumferential.
In technique scheme, described anode block profile is consistent, forms and extract chamber between every two anode blocks.
In technique scheme, described permanent magnet is annular shape, and permanent magnet and negative electrode are coaxially set.
In technique scheme, comprise two block sizes, the permanent magnet that shape is identical.
In technique scheme, anode block is arranged between two permanent magnets.
In technique scheme, described solenoid axially arranges center and bundle ripple mutual effect region center superposition.
In technique scheme, two permanent magnets axially arrange center and bundle ripple mutual effect region center superposition.
Compared with prior art, the invention has the advantages that:
In the present invention, permanent magnetic iron is embedded in magnetron inside, takes full advantage of the inner space of magnetron. Embedded permanent magnetic iron has improved the magnetic field of field coil end effectively, mixing by embedded permanent magnetic iron and field coil is used, the magnetic field of having realized mutual effect region is uniformly distributed, and makes whole full chamber extract relativistic magnetron composite excitation system power dissipation lower simultaneously;
This composite excitation mode takes full advantage of full chamber and extracts the architectural feature of relativistic magnetron and the advantage of permanent magnet, can provide the normal work of relativistic magnetron required uniform magnetic field. Designed composite excitation system architecture is simply compact, lightweight, and making and use and maintenance cost are lower, is very beneficial for mobile application platform and uses.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described;
Fig. 1 is the structural representation of embodiments of the invention 1;
Wherein: the 1st, anode urceolus; The 2nd, bundle ripple mutual effect region; 3, the 4th, embedded permanent magnet block; The 5th, field coil; The 6th, permanent magnet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, relativistic magnetron is extracted by anode urceolus in full chamber of the present invention, six anode blocks that size is identical, and structure and export structure composition are extracted in negative electrode, full chamber. Negative electrode is positioned at anode canister inside, with anode canister concentric. Six anode blocks are between anode canister and negative electrode, and uniform ring, around cathode external, has formed six resonators along angle between six anode blocks. It between negative electrode and anode block, is bundle ripple mutual effect region. What structure employing was extracted in full chamber is the mode that Radial Coupling hole combines with fan-shaped waveguide. Microwave process fan-shaped waveguide, more further synthetic by coaxial waveguide, finally by the transition of end circular cone, exported by circular waveguide port.
Field coil is placed on relativistic magnetron urceolus outside, axially places center and bundle ripple mutual effect region center superposition.
Embedded permanent magnetic iron is the coaxial type magnetic patch of two formed objects, its small volume, be positioned at the inside of relativistic magnetron, its external diameter equals the anode block external diameter of relativistic magnetron, keep coaxial with relativistic magnetron, two embedded little magnetic patch axially place center also with restraint ripple mutual effect region center superposition.
Field coil and embedded permanent magnetic iron are jointly for the bundle ripple mutual effect region of relativistic magnetron provides axial uniform magnetic field.
Specific embodiment is as follows:
Field coil is placed on anode urceolus, and coil inside radius is 105mm, and outer radius is 155mm, axially placement center and bundle ripple mutual effect region center superposition, axial length is 80mm, adopts the copper wire winding of 2mm × 3mm, on wire, logical electric current is 80A, adopts the type of cooling of water-cooled.
Two little magnetic patch of embedded permanent magnetic iron are positioned at the inside of relativistic magnetron, keep coaxial with relativistic magnetron, two embedded little magnetic patch axially place center also with restraint ripple mutual effect region center superposition. Little magnetic patch external diameter is 60mm, and internal diameter is 30mm, and the axial length of each piece is 100mm, two little magnetic patch be spaced apart 250mm, the direction of magnetization all adopts axial direction. Two coaxial little magnetic patch all adopt the hard magnetic material with higher residual magnetic flux density, and residual magnetic flux density is 1.33T.
Adopt said structure size, simulation obtains field coil and the axis magnetic field of embedded permanent magnet block in mutual effect region, and this Distribution of Magnetic Field is more even, meets full chamber under this size completely and extracts relativistic magnetron and normally work and produce the required magnetic field of microwave. In this cover composite excitation system, field coil weight is about 11.5Kg, and power consumption is about 10KW, and embedded permanent magnetic iron gross weight is about 13.5Kg. And directly adopt field coil that above-mentioned magnetic field is provided, and coil weight is about 67Kg, and power consumption is about 44KW. As can be seen here, adopt the composite excitation mode in the present embodiment, the traditional field coil weight of comparable employing declines and surpasses 60%, and coil power dissipation declines and surpasses 70%. Because this composite excitation mode makes component compact, therefore in the mobile application platform that this invention can be used for device miniaturization to have relatively high expectations.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the composite excitation system of a full chamber extraction relativistic magnetron, comprise anode urceolus and be arranged on the negative electrode in anode urceolus, negative electrode and positive electrode urceolus is coaxially set, between described negative electrode and positive electrode urceolus, be provided with anode block, between negative electrode and anode block, be bundle ripple mutual effect region, the outer tube outer surface cover of described anode has solenoid; It is characterized in that comprising the permanent magnet being arranged in anode urceolus and between negative electrode.
2. the composite excitation system of relativistic magnetron is extracted in a kind of full chamber according to claim 1, it is characterized in that described anode block is set to six, distributes along same even circumferential.
3. the composite excitation system of relativistic magnetron is extracted in a kind of full chamber according to claim 2, it is characterized in that described anode block profile is consistent, forms and extract chamber between every two anode blocks.
4. the composite excitation system of relativistic magnetron is extracted in a kind of full chamber according to claim 1, it is characterized in that described permanent magnet is annular shape, and permanent magnet and negative electrode are coaxially set.
5. the composite excitation system of relativistic magnetron is extracted in a kind of full chamber according to claim 4, it is characterized in that comprising two block sizes, the permanent magnet that shape is identical.
6. the composite excitation system of extracting relativistic magnetron according to a kind of full chamber described in claim 3 or 5, is characterized in that anode block is arranged between two permanent magnets.
7. the composite excitation system of relativistic magnetron is extracted in a kind of full chamber according to claim 1, it is characterized in that described solenoid axially arranges center and bundle ripple mutual effect region center superposition.
8. extract the composite excitation system of relativistic magnetron according to a kind of full chamber described in claim 5 or 7, it is characterized in that two permanent magnets axially arrange center and bundle ripple mutual effect region center superposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610137109.9A CN105590819A (en) | 2016-03-11 | 2016-03-11 | Mixed excitation system of full-chamber extraction relativistic magnetron |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610137109.9A CN105590819A (en) | 2016-03-11 | 2016-03-11 | Mixed excitation system of full-chamber extraction relativistic magnetron |
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| CN105590819A true CN105590819A (en) | 2016-05-18 |
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| CN201610137109.9A Pending CN105590819A (en) | 2016-03-11 | 2016-03-11 | Mixed excitation system of full-chamber extraction relativistic magnetron |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148244A (en) * | 2018-10-15 | 2019-01-04 | 中国工程物理研究院应用电子学研究所 | A kind of axially adjustable humorous relativistic magnetron |
| CN109166779A (en) * | 2018-08-21 | 2019-01-08 | 钢铁研究总院 | A kind of relativistic magnetron permanent magnetic circuit system |
| CN111430203A (en) * | 2020-04-20 | 2020-07-17 | 中国工程物理研究院应用电子学研究所 | Integrated refrigeration relativistic magnetron |
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| EP2335266B1 (en) * | 2008-09-19 | 2012-03-14 | Thales | Microwave tube with a device for extracting the ions generated in the tube |
| CN202917427U (en) * | 2012-11-19 | 2013-05-01 | 上海明光电子科技有限公司 | Continuous wave magnetron |
| CN104992892A (en) * | 2015-07-17 | 2015-10-21 | 中国工程物理研究院应用电子学研究所 | Permanent-magnet packaging relativistic magnetron |
| JP2015531825A (en) * | 2012-08-09 | 2015-11-05 | パルマズ サイエンティフィック, インコーポレイテッドPalmaz Scientific, Inc. | Inverted cylindrical magnetron (ICM) system and method of use |
| CN205582877U (en) * | 2016-03-11 | 2016-09-14 | 中国工程物理研究院应用电子学研究所 | Relativistic magnetron's mixed excitation system is drawed in full chamber |
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2016
- 2016-03-11 CN CN201610137109.9A patent/CN105590819A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2335266B1 (en) * | 2008-09-19 | 2012-03-14 | Thales | Microwave tube with a device for extracting the ions generated in the tube |
| JP2015531825A (en) * | 2012-08-09 | 2015-11-05 | パルマズ サイエンティフィック, インコーポレイテッドPalmaz Scientific, Inc. | Inverted cylindrical magnetron (ICM) system and method of use |
| CN202917427U (en) * | 2012-11-19 | 2013-05-01 | 上海明光电子科技有限公司 | Continuous wave magnetron |
| CN104992892A (en) * | 2015-07-17 | 2015-10-21 | 中国工程物理研究院应用电子学研究所 | Permanent-magnet packaging relativistic magnetron |
| CN205582877U (en) * | 2016-03-11 | 2016-09-14 | 中国工程物理研究院应用电子学研究所 | Relativistic magnetron's mixed excitation system is drawed in full chamber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166779A (en) * | 2018-08-21 | 2019-01-08 | 钢铁研究总院 | A kind of relativistic magnetron permanent magnetic circuit system |
| CN109148244A (en) * | 2018-10-15 | 2019-01-04 | 中国工程物理研究院应用电子学研究所 | A kind of axially adjustable humorous relativistic magnetron |
| CN109148244B (en) * | 2018-10-15 | 2024-02-27 | 中国工程物理研究院应用电子学研究所 | Axially tunable relativistic magnetron |
| CN111430203A (en) * | 2020-04-20 | 2020-07-17 | 中国工程物理研究院应用电子学研究所 | Integrated refrigeration relativistic magnetron |
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Application publication date: 20160518 |