CN104134597A - Klystron power synthesizing and outputting device - Google Patents
Klystron power synthesizing and outputting device Download PDFInfo
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- CN104134597A CN104134597A CN201410399807.7A CN201410399807A CN104134597A CN 104134597 A CN104134597 A CN 104134597A CN 201410399807 A CN201410399807 A CN 201410399807A CN 104134597 A CN104134597 A CN 104134597A
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Abstract
The invention provides a klystron power synthesizing and outputting device which comprises N output cavities, N microwave output channels, a waveguide H-T branch and an output window, wherein the N output cavities are penetrated by a drift tube in sequence, the positions, at the preset positions of the output cavities, of the drift tube are provided with gaps, energy exchange is conducted between electron beams in the drift tube and the output cavities through the gaps, microwaves are generated, and N is equal to or larger than two; the input ends of the microwave output channels are connected to output cavity coupling holes located in the cavity walls of the corresponding output cavities; N input ports of the H-T branch are connected to the output ends of the corresponding microwave output channels respectively and are used for conducting power synthesis on the microwaves input through the N input ports; the front end of the output window is connected to the output port of the waveguide H-T branch, and the microwaves synthesized through power are output through the output window. According to the klystron power synthesizing and outputting device the structure which combines the multiple output cavities and the waveguide H-T branch is adopted, so that power capacity and efficiency of a klystron are effectively improved.
Description
Technical field
The present invention relates to electron trade electric vacuum technology field, relate in particular to the synthetic output device of a kind of klystron power.
Background technology
Klystron has high power and high-gain feature, in fields such as particle accelerator, laser weapon and big science devices, has very large application prospect.
Yet, along with the raising of power, the single gap power output finite capacity of common klystron, abundant not with the energy of electron beam exchange, will cause a large amount of energy losses at collector, will greatly reduce like this efficiency of klystron.This power capacity that single gap output cavity of common klystron has been described is limited, and efficiency is not high yet, realize more high power and larger efficiency, must on export structure, improve.
Summary of the invention
(1) technical problem that will solve
In view of above-mentioned technical problem, the invention provides the synthetic output device of a kind of klystron power, to improve power capacity and the efficiency of klystron.
(2) technical scheme
According to an aspect of the present invention, provide a kind of klystron power to synthesize output device.The synthetic output device of this klystron power comprises: N output cavity, this N output cavity is passed successively by a drift tube, and this drift tube is provided with gap at the predeterminated position of each output cavity, electron beam in drift tube and this output cavity carry out energy exchange by this gap, produce microwave, wherein, N >=2; N bar microwave output channel, the input of each microwave output channel is connected to the output cavity coupling aperture of the chamber wall that is positioned at corresponding output cavity, the microwave producing for transmitting corresponding output cavity; Waveguide H-T branch, its N input port is connected to respectively the output of corresponding microwave output channel, synthetic for the microwave of N input port input being carried out to power; And output window, its front end is connected to the output port of waveguide H-T branch, and the microwave after power is synthetic is via this output window output.
(3) beneficial effect
From technique scheme, can find out, the synthetic output device of klystron power of the present invention has following beneficial effect:
(1) adopt many output cavities in conjunction with waveguide H-T branch, effectively realized power synthetic, improved power capacity and the efficiency of klystron;
(2) adopt phase shifter, improved power combined coefficient;
(3) form all parts handling ease of the synthetic output device of klystron power, PROCESS FOR TREATMENT difficulty is little, makes the present invention more simple.
Accompanying drawing explanation
Fig. 1 is according to the synthetic output device structural representation of embodiment of the present invention klystron power;
Fig. 2 is the structural representation of waveguide H-T branch in the synthetic output device of klystron power shown in Fig. 1;
Fig. 3 is the schematic diagram of the power composition principle of the branch of waveguide H-T shown in Fig. 2;
Fig. 4 is the structural representation of output window in the synthetic output device of klystron power shown in Fig. 1;
Fig. 5 is the Waveform of output window shown in Fig. 4 when work.
[main element symbol description of the present invention]
1-the first gap; 2-the first output cavity;
3-electron beam; 4-drift tube;
5-the second output cavity; 6-the second gap;
7-collector; 8-the first output cavity coupling aperture;
9-the second output cavity coupling aperture; 10-the first straight wave guide;
11-the second straight wave guide; 12-phase shifter;
13-the first waveguide bend; 14-the second waveguide bend;
15-waveguide H-T branch; 16-output window;
17-window; 15a, 15b, 15c-port.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.It should be noted that, in accompanying drawing or specification description, similar or identical part is all used identical figure number.The implementation that does not illustrate in accompanying drawing or describe is form known to a person of ordinary skill in the art in affiliated technical field.In addition, although the demonstration of the parameter that comprises particular value can be provided herein, should be appreciated that, parameter is without definitely equaling corresponding value, but can in acceptable error margin or design constraint, be similar to corresponding value.The direction term of mentioning in embodiment, such as " on ", D score, 'fornt', 'back', " left side ", " right side " etc., be only the direction with reference to accompanying drawing.Therefore, the direction term of use is to be not used for limiting the scope of the invention for explanation.
The present invention has adopted klystron dual output chamber power to synthesize output device, thereby has greatly improved power capacity and efficiency, and this output device can effectively improve power capacity and the efficiency of klystron.
In one exemplary embodiment of the present invention, provide a kind of klystron power to synthesize output device.Fig. 1 is according to the synthetic output device structural representation of embodiment of the present invention klystron power.As shown in Figure 1, the synthetic output device of the present embodiment klystron power comprises:
N output cavity (2,5), this N output cavity is passed successively by a drift tube 4, and this drift tube 4 is provided with the gap (1,6) for energy exchange at the predeterminated position of each output cavity, for carrying out energy exchange with the electron beam 3 by drift tube 4, produce microwave, wherein, N >=2;
Collector 7, is connected in the least significant end of drift tube 4, for the excess electron after harvest energy exchange;
Waveguide H-T branch 15, its N input port is connected to respectively the output cavity coupling aperture of the chamber wall that is positioned at corresponding output cavity by microwave output channel, synthetic for the microwave of N input port input being carried out to power;
Output window 16, its front end is connected to the output port of waveguide H-T branch, and the microwave after power is synthetic is via these output window 16 outputs.
In the present embodiment, adopted many output cavities structure can effectively improve power capacity and the efficiency of klystron.
The structure of each part of the synthetic output device of the present embodiment klystron power is got rid of the process implementations such as gas by electrical property design, engineering design, precision optical machinery processing, soldering and baking.Below each part of the synthetic output device of the present embodiment klystron power is described in detail.
The synthetic output device of the present embodiment klystron power comprises 2 output cavities, i.e. the first output cavity 2 and the second output cavity 5, but the present invention is not as limit.In the present invention, the number of output cavity is unrestricted, and preferably, the number N of output cavity meets: 2≤N≤5.
Please refer to Fig. 1, the first output cavity 2 and the second output cavity 5 are cylindrical reentry type single gap output cavity.Drift tube 4 is successively through the first output cavity 2 and the second output cavity 5, and its end is connected to collector 7.About gatherer 7, it there is no differently from the collector for excess electron after harvest energy exchange conventionally adopting in this area, no longer describes in detail herein.
Wherein, the part of drift tube 4 in the first output cavity 2 offers the first gap 1.Drift tube 4 and the first output cavity 2 carry out energy exchange by this first gap 1.The part of drift tube 4 in the second output cavity 5 offers the second gap 6.Drift tube 4 and the second output cavity 5 carry out energy exchange by this second gap 6.
On the chamber wall of the first output cavity 2, offer the first output cavity coupling aperture 8.On the chamber wall of the second output cavity 5, offer the second output cavity coupling aperture 9.This first output cavity coupling aperture 8 is connected to the first input end mouth of waveguide H-T branch by the first microwave output channel.This second output cavity coupling aperture 9 is connected to the second input port of waveguide H-T branch by the second microwave output channel.
Please refer to Fig. 1, the first microwave output channel starts to comprise successively from the first output cavity coupling aperture 8: the first straight wave guide 10 and the first waveguide bend 13 are connected.The first straight wave guide 10 right-hand members are connected with the first output cavity 2, guarantee the centre that the first output cavity coupling aperture 8 is aimed at the first straight wave guide 10.The left end of the first straight wave guide 10 is connected with the right-hand member of the first waveguide bend 13, and the left end of the first waveguide bend 13 is connected with the first input end mouth 15a of waveguide H-T branch 15.
Please refer to Fig. 1, the second microwave output channel starts to comprise successively from the second output cavity coupling aperture 9: the second straight wave guide 11, phase shifter 12 and the second waveguide bend 14 that are connected.The second straight wave guide 11 right-hand members are connected with the second output cavity 5, guarantee the centre that the second output cavity coupling aperture 9 is aimed at the second straight wave guide 11.The left end of the second straight wave guide 11 is connected with the right-hand member of phase shifter 12, and the second waveguide bend 14 right-hand members are connected with the left end of phase shifter 12, the lower end of the second waveguide bend 14 is connected with the second input port 15b waveguide H-T branch 15.
Fig. 2 is the structural representation of waveguide H-T branch in the synthetic output device of klystron power shown in Fig. 1.Fig. 3 is the schematic diagram of the power composition principle of the branch of waveguide H-T shown in Fig. 2.As shown in Figures 2 and 3, waveguide H-T branch is combined by mutually perpendicular two segment standard waveguides, and its magnetic Field Coupling by narrow limit is realized the synthetic of power, has the advantages that power combined coefficient is high.In the present embodiment, adopt waveguide H-T branched structure can effectively realize power synthetic.
It will be apparent to those skilled in the art that adopting waveguide H-T branched structure can realize power synthesizes.But if in the inconsistent situation of two way microwave signals phase place of some inputs, the synthetic efficiency of power will be affected.
In the present embodiment, using the first microwave output channel as standard vias, its phase place of microwave of first input end mouth (15a) that exports described waveguide H-T branch (15) to is as standard phase place.Adopt the microwave of 12 pairs of the second microwave output channel transmission of phase shifter to carry out phase shift, the phase place of microwave that makes the second microwave output channel export second input port (15b) of described waveguide H-T branch (15) to equals standard phase place, thereby can greatly improve the power combined coefficient of H-T branched structure.
It will be apparent to those skilled in the art that except phase shifter, the present invention can also adopt other the device that changes electromagnetic transmission phase place that has.For the klystron power synthesizer comprising more than 2 output cavities, for each output cavity the output cavity except corresponding standard phase place, at microwave output channel, all should comprise corresponding phase shifter, identical with standard phase place to guarantee the phase place of this output cavity output.
The front end of output window 16 is connected to the output port of waveguide H-T branch, and its rear end is connected to load.This output window can effectively be realized power capacity and isolated vacuum and atmosphere.
Fig. 4 is the structural representation of output window in the synthetic output device of klystron power shown in Fig. 1.Fig. 5 is the Waveform of output window shown in Fig. 4 when work.As shown in Figure 4 and Figure 5, output window adopts circular output window, its window 17 use be alumina ceramic material.When high power transmission, the Electric Field Distribution in output window as shown in Figure 5.
In view of phase shifter, output window and waveguide H-T branch into the universal component of this area, be no longer described in detail herein.Only it should be noted that, phase shifter need to need the angle of phase shift to arrange according to place path microwave, and waveguide H-T branched structure can replace by the parameter of different frequency range standard waveguide, is not limited to certain wave band.
Please refer to Fig. 1, below receive the operation principle of the synthetic output device of the present embodiment klystron power: electron beam 3 transmits in drift tube 4, there is energy exchange with the first gap 1 and second gap 6 of the first output cavity 2 and the second output cavity 5, the microwave energy of its generation transmits by the first output cavity coupling aperture 8 and 9 minutes two-way of the second output cavity coupling aperture, the first via is by the first input end mouth 15a of the first straight wave guide 10 and the first waveguide bend 13 feed-in waveguide H-T branches 15, another road is through the second straight wave guide 11, the second input port 15b of phase shifter 12 and the second waveguide bend 14 feed-in waveguide H-T branches 15, the synthetic power of waveguide H-T branch 15 is exported from output port 15c, directly arrive output window 16, the microwave transferring out from output window 16 is directly added to load, electron beam 3 after the second output cavity 5 is collected the utmost point 7 and reclaims.
So far, by reference to the accompanying drawings the embodiment of the present invention be have been described in detail.According to above, describe, those skilled in the art should have clearly understanding to the synthetic output device of klystron power of the present invention.
In addition, the above-mentioned definition to each element is not limited in various concrete structures or the shape of mentioning in execution mode, and those of ordinary skill in the art can know simply and replace it, for example:
(1) number of output cavity is not limited to 2, and preferably, the number N of output cavity meets: 2≤N≤5;
(2) waveguide H-T branched structure, parameter that can different frequency range standard waveguide replaces, and is not limited to certain wave band;
(3) structure of output window is not limited only to ox-eye, can the replacing with off-gauge similar structures of standard.
In sum, the synthetic output device of klystron power of the present invention has adopted many output cavities structure, compare traditional klystron output device, greatly improved power capacity and the efficiency of klystron, have its unique advantage improving aspect the power capacity of klystron and efficiency.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the synthetic output device of klystron power, is characterized in that, comprising:
N output cavity (2,5), this N output cavity is passed successively by a drift tube (4), and this drift tube (4) is provided with gap (1,6) at the predeterminated position of each output cavity, electron beam (3) in described drift tube (4) carries out energy exchange with this output cavity by this gap, produce microwave, wherein, N >=2;
N bar microwave output channel, the input of each microwave output channel is connected to the output cavity coupling aperture of the chamber wall that is positioned at corresponding output cavity, the microwave producing for transmitting corresponding output cavity;
Waveguide H-T branch (15), its N input port (15a, 15b) is connected to respectively the output of corresponding microwave output channel, synthetic for the microwave of N input port input being carried out to power; And
Output window (16), its front end is connected to the output port (15c) of described waveguide H-T branch (15), and the microwave after power is synthetic is exported via this output window (16).
2. the synthetic output device of klystron power according to claim 1, is characterized in that,
Using in N bar microwave output channel, wherein a microwave output channel is as standard vias, its phase place of microwave that exports described waveguide H-T branch (15) respective input mouth to is as standard phase place;
Each in other N-1 bar microwave output channels except this standard vias comprises: phase shifter (12), be arranged in corresponding microwave output channel, for this microwave output channel being exported to the phase place of the microwave of described waveguide H-T branch (15) respective input mouth, be adjusted to standard phase place.
3. the synthetic output device of klystron power according to claim 2, is characterized in that, each the microwave output channel in described N bar microwave output channel comprises:
Straight wave guide (11), its front end is connected to corresponding output cavity, guarantees that the coupling aperture of corresponding output cavity is in the centre of this straight wave guide (11);
Waveguide bend (14), its front end is connected to the rear end of described straight wave guide (11), and its rear end is connected to the respective input mouth of described waveguide H-T branch (15).
4. klystron power according to claim 3 synthesizes output device, it is characterized in that, in described other N-1 bar microwave output channels except standard vias, described phase shifter (12) is positioned at the path between described straight wave guide (11) and waveguide bend (14).
5. the synthetic output device of klystron power according to claim 1, is characterized in that, described waveguide H-T branch (15) is combined by mutually perpendicular two segment standard waveguides, and it is synthetic that its magnetic Field Coupling by narrow limit is realized power.
6. according to the synthetic output device of the klystron power described in any one in claim 1 to 5, it is characterized in that, described output window (16) adopts circular output window, and its window is prepared by alumina ceramic material.
7. according to the synthetic output device of the klystron power described in any one in claim 1 to 5, it is characterized in that, a described N output cavity is cylindrical reentry type single gap output cavity.
8. according to the synthetic output device of the klystron power described in any one in claim 1 to 5, it is characterized in that 2≤N≤5.
9. the synthetic output device of klystron power according to claim 8, is characterized in that N=2.
10. according to the synthetic output device of the klystron power described in any one in claim 1 to 5, it is characterized in that, also comprise:
Collector (7), is connected in the least significant end of described drift tube (4), for the excess electron after harvest energy exchange.
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| CN201410399807.7A CN104134597A (en) | 2014-08-14 | 2014-08-14 | Klystron power synthesizing and outputting device |
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| CN201410399807.7A CN104134597A (en) | 2014-08-14 | 2014-08-14 | Klystron power synthesizing and outputting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133601A (en) * | 2019-05-16 | 2019-08-16 | 北京无线电测量研究所 | A kind of X-band multichannel High-Power Microwave emitter and system |
| CN111883404A (en) * | 2020-07-06 | 2020-11-03 | 安徽华东光电技术研究所有限公司 | Klystron oscillator |
| CN112867221A (en) * | 2020-12-30 | 2021-05-28 | 中国原子能科学研究院 | Acceleration structure and linear accelerator with same |
| RU2804521C1 (en) * | 2023-04-04 | 2023-10-02 | Акционерное общество "Научно-производственное предприятие "Исток" имени А.И.Шокина" | Multibeam klystron |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133601A (en) * | 2019-05-16 | 2019-08-16 | 北京无线电测量研究所 | A kind of X-band multichannel High-Power Microwave emitter and system |
| CN111883404A (en) * | 2020-07-06 | 2020-11-03 | 安徽华东光电技术研究所有限公司 | Klystron oscillator |
| CN111883404B (en) * | 2020-07-06 | 2022-09-16 | 安徽华东光电技术研究所有限公司 | Klystron oscillator |
| CN112867221A (en) * | 2020-12-30 | 2021-05-28 | 中国原子能科学研究院 | Acceleration structure and linear accelerator with same |
| RU2804521C1 (en) * | 2023-04-04 | 2023-10-02 | Акционерное общество "Научно-производственное предприятие "Исток" имени А.И.Шокина" | Multibeam klystron |
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Application publication date: 20141105 |