CN107069149B - The high-power Cyclotron wave converter coupling input device of X-band - Google Patents
The high-power Cyclotron wave converter coupling input device of X-band Download PDFInfo
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- CN107069149B CN107069149B CN201611217492.5A CN201611217492A CN107069149B CN 107069149 B CN107069149 B CN 107069149B CN 201611217492 A CN201611217492 A CN 201611217492A CN 107069149 B CN107069149 B CN 107069149B
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- rectangular waveguide
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- shell
- input device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/04—Fixed joints
- H01P1/042—Hollow waveguide joints
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/12—Hollow waveguides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/082—Transitions between hollow waveguides of different shape, e.g. between a rectangular and a circular waveguide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
Abstract
The invention discloses a kind of high-power Cyclotron wave converter coupling input device of X-band, belong to the microwave input unit field in vacuum unit.Including cylindrical cavity shell, the two pieces of pole plates, rectangular waveguide and the coupled structure that are arranged in parallel in shell；Two bottom surface of resonant cavity shell is provided with electronics note input and output through-hole；One end of pole plate is connected to by pole plate extended segment with the rectangular waveguide for being set to outer side of shell, and the first coupled structure is provided at the position intersected with shell of pole plate extended segment, the second coupled structure is provided in rectangular waveguide, two coupled structures are connected smoothly by metal tie rods.Structure of the present invention is simple and compact, easy to process；Structure using coupling ring as coupling avoids and couples the high potential that may be motivated with probe, prevents electric field strength is excessive from causing to puncture；The coupled-loop structures simultaneously bi-directionally fastened solve the heat dissipation problem of the coupling device in continuous wave work.
Description
Technical field
The invention belongs to the microwave input unit fields in vacuum unit, and in particular to a kind of x band high-power cyclotron wave
The microwave coupling input unit of rectifier.
Background technique
Since the wavelength of microwave is shorter, therefore its directionality is good, therefore, realizes the long-range biography of electric energy using microwave extensively
It is defeated.Microwave wireless transmission of electricity is mainly made of microwave source, transmitting and receiving antenna and microwave rectifier etc..Wherein cyclotron wave rectifies
Device is a kind of using free electron as the special electron tube of working medium, it is the important of realization HIGH-POWERED MICROWAVES wireless power transmission
Device, main effect is that the High-Power Microwave energy that will be received is converted into direct current energy.
Cyclotron wave converter mainly includes by high-frequency resonant cavity, Conversion region and collecting grade three parts.Wherein microwave
Resonant cavity is always connected with microwave system in practical application and is unlikely to be isolated, resonant cavity must by Transmission system come
Microwave energy is transmitted to it, is otherwise impossible to maintain stable oscillation in resonant cavity.In other words, resonant cavity and transmission system
It must have coupling between system, realize that the structure of this coupling is known as coupling device or exciting bank.
In order to improve the power capacity of Cyclotron wave converter and the efficiency of energy conversion, it is necessary to design suitable microwave coupling
Input unit is closed, input unit, which should meet, possesses sufficiently large power capacity, while also will be with the high frequency of Cyclotron wave converter
Resonant cavity has good matching.Common coupled modes have: direct-coupling, probe coupling, coupling loop coupling and Aperture coupling, tool
Which kind of design body selects will be with reference to the field distribution feature of corresponding resonant cavity.
University of Electronic Science and Technology doctor Zhao Xiaoyun doctoral thesis " based on during the special electrovacuum of cyclotron resonance mechanism
Research " disclosed in 2.85GHz Cyclotron wave converter, including resonant cavity cavity, coaxial line structure input unit and guiding
Magnetic field sound zone system.Wherein the input unit be coaxial inner conductor is introduced into from cylinder resonator periphery it is parallel with axis
On pole plate, thus realize the perfect matching of input unit and resonant cavity, but since its coaxial configuration used will cause power
The limitation of capacity, therefore the X-band Cyclotron wave converter for being not suitable for being got over effects by size degree uses.
Summary of the invention
The characteristics of the purpose of the present invention is Cyclotron wave converter high-frequency resonant cavities high-power for X-band, researching and designing one
The powerful microwave coupling of kind inputs device, and microwave energy is capable of entering in resonant cavity by the input device for stability and high efficiency,
To motivate very strong high-frequency electric field in resonant cavity, so that electronics note can complete sufficient standing wave interaction with microwave energy
With greatly improving the energy conversion efficiency of cavity.
A kind of high-power Cyclotron wave converter coupling input device of X-band, including cylindrical cavity shell, be arranged in parallel
In two pieces of pole plates, rectangular waveguide and coupled structure in shell；Two bottom surface of resonant cavity shell is provided with electronics infusion and enters
Export through-hole；One end of the pole plate is connected to by pole plate extended segment with the rectangular waveguide for being set to outer side of shell, and pole plate prolongs
It stretches and is provided with the first coupled structure at the position that section intersects with shell, the second coupled structure, two couplings are provided in rectangular waveguide
Structure is connected smoothly by metal tie rods.
The two-plate is supported and is fixed by support ridge respectively.
First coupled structure, the second coupled structure are the oval rod structure of symmetrically arranged bending, the metal connection
The cross section of bar and the cross section of two coupled structures are the identical ellipse of size.
Axis is overlapped between the rectangular waveguide and two-plate.
The short side of the rectangular waveguide is greater than the spacing between two-plate.
The rectangular waveguide is X-band standard rectangular waveguide BJ100.
The present invention uses the magnetic-coupled transmission mode of double ring type, that is, uses load of the standard rectangular waveguide as microwave transmission
Body, the characteristics of according to electric field in resonant cavity and Distribution of Magnetic Field, selection is open near the cavity wall at Distribution of Magnetic Field centrostigma and places
The input waveguide；And the Distribution of Magnetic Field size at resonant cavity and input waveguide tie point is analyzed, selection magnetic field near tie point
It is distributed at centrostigma and places the first coupled structure, and adjust size and the radius of turn of coupled structure to optimize coupling knot
The matching of structure and resonant cavity；The metal tie rods and rectangular waveguide being connected with the first coupled structure constitute coaxial configuration；Consider
To the power capacity of input unit and the processing and actual use situation of structure, used in connecting rod other end magnetic field concentration point
Identical with the first coupled structure and symmetrically arranged second coupled structure, can be realized the transition of rectangular waveguide to coaxial configuration.
The configuration of the present invention is simple is compact, and material can be basis brass, and in order to facilitate processing, coupling device can be split into two
A symmetric part is processed, and then reduces installation error as far as possible in such a way that pin positioning and screw are fixed.Work
High-Power Microwave can be passed in resonant cavity through the coupling input device when making, specifically, the microwave of TE10 mode passes through standard square
Shape waveguide oral instructions enter, and at first coupled-loop structures, convert TE10 mode to the energy of TEM mould, realize waveguide to coaxially
This part it is seamless excessively；It after one section of coaxial transmission, reaches at second coupled-loop structures, the wave of TEM passes through magnetic
Energy is efficiently passed in resonant cavity by the mode of coupling, and the high-frequency electric field of needs is motivated in resonant cavity.
Beneficial effects of the present invention are as follows:
(1) present invention uses carrier of the standard rectangular waveguide as energy transmission, and the system of ensure that possesses sufficiently high function
Rate capacity.
(2) structure of the present invention design coupling ring as coupling, avoids and couples the high potential that may be motivated with probe,
Prevent electric field strength is excessive from causing to puncture.
(3) the design is simple and compact for structure, easy to process, and the coupled-loop structures simultaneously bi-directionally fastened are solved in continuous wave
The heat dissipation problem of coupling device when work.
Detailed description of the invention
Fig. 1 rectifies the structural schematic diagram of high-frequency resonant cavity for the 2.85GHz cyclotron wave of doctor Zhao Xiaoyun institute publicity；
Fig. 2 (cuts open for the internal cavity structure of the 2.85GHz Cyclotron wave converter high-frequency resonant cavity of doctor Zhao Xiaoyun institute publicity
Face figure)；
Fig. 3 is the structure chart of the present invention and matched Cyclotron wave converter high-frequency resonant cavity；
Fig. 4 is the internal cavity structure (sectional view) of the present invention and matched Cyclotron wave converter high-frequency resonant cavity；
Fig. 5 is internal cavity structural representation Fig. 1 (sectional view) of the invention；
Fig. 6 is internal cavity structural representation Fig. 2 (sectional view) of the invention；
Fig. 7 is coupled-loop structures schematic diagram 1 (sectional view)；
Fig. 8 is the reflection parameters S11 parameter coordinate curve of specific embodiment rectangular waveguide input port；
The electronics of high-frequency resonant cavity infuses output power curve when Fig. 9 is input power 10kW；
In figure: 1. resonant cavity shells, 2. rectangular waveguides, 3. plate supports ridges, 4. pole plates, 5. pole plate extended segments, 6. first
Coupled structure, 7. second coupled structures, 8. metal tie rods, 9. electronics infusion entrances.
Specific embodiment
It just with input center frequency is below 9.2GHz, power is that the coupling input matched with devices of the microwave energy of 10kW is returned
Illustrate for rotation wave rectifier high-frequency resonant cavity, attached drawing 3 is the mating Cyclotron wave converter harmonic high frequency of the energy coupling input unit
The structure chart of vibration chamber, entire input unit are all made of brass production, in which:
Cylindrical cavity shell 1 is a circular waveguide, and the inside radius d of the circular waveguide is 27.3mm, length 46mm；Two bottoms
Face is respectively arranged with the input and output through-hole that radius is 2mm and 4.5mm；It is internally provided with plate supports ridge 3 and pole plate 4.Pole
Plate thickness b is 2mm, length 26mm；The width c of plate supports ridge is 30mm, length 8mm；Wherein up and down two pieces of pole plates it
Between spacing a be 9mm；Coupling input device is rectangular waveguide 2 as shown in the figure, and its first internal coupled structure 6, the
The Crossed Circle structure that two coupled structures 7 and metal tie rods 8 form, wherein rectangular waveguide 2 is the waveguide of BJ100 standard rectangular, should
Waveguide bond length x is 10.16mm, and waveguide long side length is 22.86mm.Axis is overlapped between the waveguide and two-plate, is extended
Cavity internal polar plate is connected with waveguide, which forms a double wall structure, can greatly enhance intermediate Distribution of Magnetic Field,
Facilitate magnetic-coupled progress below.
Above-mentioned Crossed Circle structure generally one is bent oval rod structure, and the long side radius of oval cross section is 2mm, short side half
R2 is 1.5mm, and intermediate straight 8 length g of metal tie rods is 15mm, and metallic rod both ends are bent simultaneously, are allowed to respectively and in resonant cavity
Pole plate extended segment and rectangular wave guide wall fastening.Curved endface position is Distribution of Magnetic Field centrostigma, and first end face is curved
Bent position, which is located at, ties along input waveguide direction from chamber central point e at 28.8mm, to be formed by bending first coupling here
Structure 6；The curved position in second end face be located at along wave guide direction from chamber central point f be 43.8mm at, formed here second
A coupled structure 7.Two coupled structures are that quarter circular arc cylindroid and straight oval column combination are constituted, wherein half outside arc section
Diameter r1 is 3.5mm, and straight ellipse segment length h is 1.42mm.
The simulation result of the present embodiment is shown below:
By simulation calculation, when inputting the microwave power of 0.5W, the maximum disruptive field intensity in the design structure is 2.6V/
M, 24360V/m can be calculated when input power is 10kW, the intracorporal maximum of chamber according to the quadratic relationship of power and field strength
Field intensity value is 34kV/cm, and less than the maximum disruptive field intensity 200kV/cm in vacuum, therefore the maximum power of the design is up to tens
KW grades.
Fig. 8 is the reflection parameters S11 parameter curve of coupling input device input port, due to Cyclotron wave converter harmonic high frequency
Vibration chamber is the device of single-frequency point work, is at 9.2GHz in working frequency, reflection coefficient is about -20dB, and back wave is hardly
Influence the note wave interaction of high-frequency resonant cavity.
Fig. 9 is that electronics when the hot chamber of Cyclotron wave converter emulates infuses output power curve, and microwave input power at this time is
10kW, the initial power of electronics note are 3kW, and by calculating, the efficiency of the resonant cavity of the design has reached 97.3%, met design
It is required that.
Claims (6)
1. a kind of high-power Cyclotron wave converter coupling input device of X-band, including cylindrical cavity shell, it is arranged in parallel in
Two pieces of pole plates, the first coupled structure, the second coupled structure and rectangular waveguide in shell；Two bottom surface of resonant cavity shell is set
It is equipped with electronics note input and output through-hole；One end of the pole plate passes through pole plate extended segment and the rectangular waveguide for being set to outer side of shell
Connection, and it is provided with the first coupled structure at the position intersected with shell of pole plate extended segment, the second coupling is provided in rectangular waveguide
Structure is closed, two coupled structures are connected smoothly by metal tie rods.
2. a kind of high-power Cyclotron wave converter coupling input device of X-band as described in claim 1, it is characterised in that: institute
State the first coupled structure, the second coupled structure is the oval rod structure of symmetrically arranged bending, the cross section of the metal tie rods
It is the identical ellipse of size with the cross section of two coupled structures.
3. a kind of high-power Cyclotron wave converter coupling input device of X-band as described in claim 1, it is characterised in that: institute
Two-plate is stated to support and fix by support ridge respectively.
4. a kind of high-power Cyclotron wave converter coupling input device of X-band as described in claim 1, it is characterised in that: institute
Axis between rectangular waveguide and two-plate is stated to be overlapped.
5. a kind of high-power Cyclotron wave converter coupling input device of X-band as described in claim 1, it is characterised in that: institute
The short side of rectangular waveguide is stated greater than the spacing between two-plate.
6. a kind of high-power Cyclotron wave converter coupling input device of X-band as described in claim 1, it is characterised in that: institute
Stating rectangular waveguide is X-band standard rectangular waveguide BJ100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217492.5A CN107069149B (en) | 2016-12-26 | 2016-12-26 | The high-power Cyclotron wave converter coupling input device of X-band |
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| CN201611217492.5A CN107069149B (en) | 2016-12-26 | 2016-12-26 | The high-power Cyclotron wave converter coupling input device of X-band |
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| CN107069149A CN107069149A (en) | 2017-08-18 |
| CN107069149B true CN107069149B (en) | 2019-10-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114464514B (en) * | 2021-11-18 | 2023-04-07 | 电子科技大学 | Frequency-locking phase-locking structure and magnetron structure formed by same |
| CN115458894A (en) * | 2022-08-29 | 2022-12-09 | 电子科技大学 | High-power microwave coupling device based on multi-order choking coupling structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2119691C1 (en) * | 1997-03-12 | 1998-09-27 | Государственное научно-производственное предприятие "Исток" | Cyclotron converter of microwave power |
| CN101103256A (en) * | 2004-11-25 | 2008-01-09 | 申克公司 | Antenna device for injecting or extracting microwaves into/from tubular hollow bodies, and device for measuring mass flow by using antenna devices of this type |
| CN102024652A (en) * | 2009-09-10 | 2011-04-20 | 新日本无线株式会社 | Electronic frequency tuning magnetron |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2444952A (en) * | 2006-12-19 | 2008-06-25 | Pcme Ltd | Improvements in methods and apparatus for monitoring particles flowing in a stack |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2119691C1 (en) * | 1997-03-12 | 1998-09-27 | Государственное научно-производственное предприятие "Исток" | Cyclotron converter of microwave power |
| CN101103256A (en) * | 2004-11-25 | 2008-01-09 | 申克公司 | Antenna device for injecting or extracting microwaves into/from tubular hollow bodies, and device for measuring mass flow by using antenna devices of this type |
| CN102024652A (en) * | 2009-09-10 | 2011-04-20 | 新日本无线株式会社 | Electronic frequency tuning magnetron |
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