CN107993911A - A kind of Terahertz Zigzag type octamonic amplifier - Google Patents
A kind of Terahertz Zigzag type octamonic amplifier Download PDFInfo
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- CN107993911A CN107993911A CN201711189662.8A CN201711189662A CN107993911A CN 107993911 A CN107993911 A CN 107993911A CN 201711189662 A CN201711189662 A CN 201711189662A CN 107993911 A CN107993911 A CN 107993911A
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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
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
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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
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
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Abstract
The present invention discloses a kind of Terahertz Zigzag type octamonic amplifier, and applied to vacuum electronics technology field, the difficult processing faced for current Terahertz vacuum device, power is small, and interaction length is short, has the problems such as high-frequency Terahertz input source shortage of certain power；The amplifier of the present invention use two-part circuit, in first segment slow-wave structure traveling wave interaction amplify, encouraging second harmonic as far as possible, backward wave energy is noted reverse feedback along electronics and is quickly amplified, and finally produces the frequency multiplication high frequency electric of effective clustering as backward wave input source；The frequency multiplication high frequency electric of clustering in second segment slow-wave structure encourages amplification again, floods fundamental signal, improves frequency-doubled signal output power.
Description
Technical field
The invention belongs to vacuum electronics technology field, more particularly to a kind of frequency multiplier technology.
Background technology
The electromagnetic wave in 0.1-10THz is broadly defined as THz wave, belongs to electronics and optical transition frequency range,
There is high-frequency, penetrability, low energy, THz wave is in the crossover location of electromagnetic spectrum and its unique property
Matter has promoted application of the Terahertz frequency spectrum in safety inspection, Measurement for Biotechnique, material science and national defense safety etc., so
And the shortage of high-power, low cost and portable THz source is still to limit Terahertz in high-resolution Terahertz radar system
The main reason for military field applications such as system, ultrahigh speed ultra-wideband communication system.
Based on the THz source of vacuum electronic since it is with solid-state devices and the light such as wide, output power, stability is good
Sub- device can not be shoulder to shoulder advantage, obtain the attention of domestic and international experts and scholars and widely studied.Terahertz based on vacuum electronic
Its core work mechanism of source is the interaction of electronics note and electromagnetic wave, when being expanded to Terahertz frequency range, microwave vacuum device
Also face frequency to restrict with structure size, the principle of output power, according to effect is crossed altogether, frequency increase, structure size is drastically
Reduce.Therefore Terahertz frequency range is arrived, traditional microwave vacuum device is because of its complicated fine structure, it is difficult to realizes high accuracy processing
And assembling, while size reduction, the reduction of electron channel is also brought, so as to greatly contain passing through for electric current.It is even if limited
Improve current density in degree ground, it is also difficult to effectively change the situation of power drop.Due to the diminution of channel size, it is desirable to which electronics is noted
It is more very thin, also cause the pack of magnetic system more difficult, note ripple interaction is difficult to maintain over long distances.
All the time, frequency multiplication amplification is one of major way that semiconductor solid-state device produces THz source, in recent years,
Vacuum electronic field has scholar to propose using harmonic signal present in travelling-wave tubes, the tune by electromagnetic wave to electronics note modulation
System realize multistage slow-wave structure cascade frequency multiplication amplification, but this method equally face slow-wave structure it is undersized bring be total to
Effect is crossed, while the mode cascaded equally faces the problem of note ripple interaction circuit is long.It can be seen from the above that Terahertz is true at present
The difficult processing that pocket part is faced, power is small, and interaction length is short, and the high-frequency Terahertz input source with certain power lacks
The difficult point such as weary, is the principal element for restricting the development of electrovacuum Terahertz power device, it is therefore desirable to constantly explore, seek it is new
Working mechanism.
The content of the invention
In order to solve the above technical problems, the present invention proposes a kind of Terahertz Zigzag type octamonic amplifier, using retrofit
More notes integrate interdigitated electrode structure slow-wave structure, by suppress frequency multiplication backward wave excitation become accelerate backward wave amplification.
The technical solution adopted by the present invention is：A kind of Terahertz Zigzag type octamonic amplifier, including：The first segment of cascade is slow
Wave structure and second segment slow-wave structure, the first segment slow-wave structure share an electronics with second segment slow-wave structure and note；
Electromagnetic wave is noted positive amplification along electronics, is put with electronics note interaction, electromagnetic wave in first segment slow-wave structure
The frequency point f signals of fundamental wave after big and the frequency point 2f signals of frequency multiplication backward wave, phase velocity and the frequency-doubled signal phase velocity one of fundamental wave traveling wave
Cause；The energy of the frequency point 2f signals of frequency multiplication backward wave notes reversely amplification along electronics, obtains the frequency multiplication current signal of clustering；
In second segment slow-wave structure, the electronics note of the frequency multiplication high frequency electric of clustering and reverse electromagnetic wave interaction are multiplexed,
Export frequency multiplication backward wave energy.
Further, the working frequency points of the second segment slow-wave structure are synchronous with electronics note.
Beneficial effects of the present invention：A kind of Terahertz Zigzag type octamonic amplifier of the present invention, using two-part circuit, the
Traveling wave interaction is amplified in one section of slow-wave structure, encourages 2f to be noted along electronics reverse as backward wave input source, backward wave energy as far as possible
The quick amplification of feedback, finally produces the frequency multiplication high frequency electric of effective clustering；The frequency multiplication high-frequency electrical of clustering in second segment slow-wave structure
Stream excitation amplification again, floods fundamental signal, improves frequency-doubled signal output power；The present invention has the following advantages：
1st, the thinking of electronics note multiplexing is proposed first, is noted in two sections of slow-wave structures using same electronics, is reached amplification
Electronic efficiency is improved while harmonic wave；
2nd, propose first and utilize the backward wave oscillation frequency (2f) in travelling-wave tubes；
3rd, using traveling wave (forward-wave) excitation frequency-doubled signal (2f), by frequency-doubled signal (2f) energy by note ripple interaction
It is transferred on electronics note, makes electronics note continue to be applied to the vibration increase that second segment circuit realizes frequency-doubled signal.
Brief description of the drawings
Fig. 1 is Terahertz Zigzag type octamonic amplifier principle schematic；
Fig. 2 is two sections of circuit dispersion relations of Terahertz Zigzag type octamonic amplifier；
Fig. 3 is traveling wave, backward wave enlarged diagram in Terahertz Zigzag type octamonic amplifier.
Embodiment
For ease of skilled artisan understands that the technology contents of the present invention, below in conjunction with the accompanying drawings to present invention into one
Step explaination.
It is as shown in Figure 1 Terahertz Zigzag type octamonic amplifier principle schematic；The technical scheme is that：One kind is too
Hertz Zigzag type octamonic amplifier, including：The first segment slow-wave structure of cascade and second segment slow-wave structure, first segment slow wave knot
Structure shares an electronics with second segment slow-wave structure and notes；The interaction of fundamental wave traveling wave is amplified in first segment slow-wave structure, excitation two
For subharmonic as backward wave input source, backward wave notes reversely amplification in first segment slow-wave structure along electronics, and the frequency multiplication for producing clustering is high
Frequency electric current；In second segment slow-wave structure, the frequency multiplication high frequency electric of clustering amplifies again.
The first segment slow-wave structure of the present invention shares an electronics note with second segment slow-wave structure and carries out note ripple interaction；The
One section of slow-wave structure takes structure of turning back, as shown in Fig. 2, dispersion requires the phase velocity of fundamental wave traveling wave (f) and the phase velocity of backward wave (2f)
Unanimously, the traveling wave schematic diagram of amplification is as shown in Figure 3；So as to the second harmonic (2f) of traveling wave amplification excitation, backward wave can be used as anti-
To the input source of transmission, the backward wave schematic diagram of amplification as shown in figure 3, realize the synchronous amplification of the i.e. frequency multiplication backward wave of second harmonic, from
And realize frequency multiplication and amplify.
Second segment slow-wave structure uses double frequency power raddiating circuit, as shown in Fig. 2, dispersion requires electronics note and frequency multiplication backward wave
Signal frequency point (2f) is synchronous so that realizes Cascaded amplification backward wave electromagnetic wave while fundamental signal suppresses, being illustrated in figure 3 is
Traveling wave, backward wave enlarged diagram in Terahertz Zigzag type octamonic amplifier, are the backward wave tube that a working frequency is 2f.
Electromagnetic simulation software can be used to calculate the dispersion of the fundamental wave and harmonic wave of first, second slow-wave structure in practical applications
Curve, by varying structure size, designs two kinds of slow-wave structures of satisfaction；Two sections of slow-wave structures of the embodiment of the present invention can
Using the integrated interdigitated electrode structure slow-wave structure of more notes, which forms a natural electronics by the metal column of periodic arrangement and notes
Passage, the slow-wave structure are all-metal construction, and heat dissipation ability is strong, and power capacity is big；Good integrity at the same time, high precision machining,
Cost is low.
The Terahertz Zigzag type octamonic amplifier of the present invention, is changed into amplifying frequency multiplication backward wave from suppression frequency multiplication backward wave, is being not required to
When the backward wave input signal of external 2f is provided, the terahertz signal that output frequency is 2f, the method amplified by frequency multiplication are realized
Greatly alleviate requirement of the current vacuum electron device to THz source frequency；Using the integrated interdigitated electrode structure slow-wave structure of more notes
With natural electron beam channel, structure assembly is by force so as to reduce difficulty of processing；Shortened slowly using the mode for frequency multiplication of turning back
Also the length of Electronic beam focusing is shortened while wave structure length.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.For ability
For the technical staff in domain, the invention may be variously modified and varied.Within the spirit and principles of the invention, made
Any modification, equivalent substitution, improvement and etc., should be included within scope of the presently claimed invention.
Claims (2)
- A kind of 1. Terahertz Zigzag type octamonic amplifier, it is characterised in that including：The first segment slow-wave structure and second segment of cascade Slow-wave structure, the first segment slow-wave structure share an electronics with second segment slow-wave structure and note；Electromagnetic wave and electronics note interaction in first segment slow-wave structure, electromagnetic wave notes positive amplification along electronics, after obtaining amplification Fundamental wave frequency point f signals and frequency multiplication backward wave frequency point 2f signals, the phase velocity of fundamental wave traveling wave is consistent with frequency-doubled signal phase velocity；Frequency multiplication The energy of the frequency point 2f signals of backward wave notes reversely amplification along electronics, obtains the frequency multiplication current signal of clustering；In second segment slow-wave structure, the electronics note of the frequency multiplication high frequency electric of clustering and reverse electromagnetic wave interaction, output are multiplexed Frequency multiplication backward wave energy.
- A kind of 2. Terahertz Zigzag type octamonic amplifier according to claim 1, it is characterised in that the second segment slow wave The working frequency points of structure are synchronous with electronics note.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711189662.8A CN107993911B (en) | 2017-11-24 | 2017-11-24 | A kind of Terahertz Zigzag type octamonic amplifier |
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| CN201711189662.8A CN107993911B (en) | 2017-11-24 | 2017-11-24 | A kind of Terahertz Zigzag type octamonic amplifier |
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| CN107993911B CN107993911B (en) | 2019-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889390A (en) * | 2020-07-02 | 2022-01-04 | 中国科学院空天信息创新研究院 | Double-injection plane terahertz gyrotron |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655068A (en) * | 2011-03-02 | 2012-09-05 | 中国科学院电子学研究所 | Manufacturing method of double-row rectangular comb-like slow wave structure |
| CN103346056A (en) * | 2013-06-24 | 2013-10-09 | 合肥工业大学 | Two-stage serial-connection terahertz slow wave structure |
| CN104064422A (en) * | 2014-06-21 | 2014-09-24 | 电子科技大学 | Small all-metal slow wave device |
| US8884516B2 (en) * | 2010-01-08 | 2014-11-11 | University Of Utah Research Foundation | Traveling wave electron device with membrane-supported slow wave circuit |
| CN104538271A (en) * | 2014-12-29 | 2015-04-22 | 中国电子科技集团公司第十二研究所 | Comb line slow wave structure working on high-order pass band |
| CN105742141A (en) * | 2016-03-09 | 2016-07-06 | 中国科学技术大学 | Terahertz magnetic radiation source |
| CN206639773U (en) * | 2017-04-25 | 2017-11-14 | 中国电子科技集团公司第十二研究所 | A kind of helix TWT based on segmentation tandem slow wave system |
-
2017
- 2017-11-24 CN CN201711189662.8A patent/CN107993911B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8884516B2 (en) * | 2010-01-08 | 2014-11-11 | University Of Utah Research Foundation | Traveling wave electron device with membrane-supported slow wave circuit |
| CN102655068A (en) * | 2011-03-02 | 2012-09-05 | 中国科学院电子学研究所 | Manufacturing method of double-row rectangular comb-like slow wave structure |
| CN103346056A (en) * | 2013-06-24 | 2013-10-09 | 合肥工业大学 | Two-stage serial-connection terahertz slow wave structure |
| CN104064422A (en) * | 2014-06-21 | 2014-09-24 | 电子科技大学 | Small all-metal slow wave device |
| CN104538271A (en) * | 2014-12-29 | 2015-04-22 | 中国电子科技集团公司第十二研究所 | Comb line slow wave structure working on high-order pass band |
| CN105742141A (en) * | 2016-03-09 | 2016-07-06 | 中国科学技术大学 | Terahertz magnetic radiation source |
| CN206639773U (en) * | 2017-04-25 | 2017-11-14 | 中国电子科技集团公司第十二研究所 | A kind of helix TWT based on segmentation tandem slow wave system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889390A (en) * | 2020-07-02 | 2022-01-04 | 中国科学院空天信息创新研究院 | Double-injection plane terahertz gyrotron |
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| CN107993911B (en) | 2019-05-24 |
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