Terahertz cascaded traveling wave tube frequency doubling device and manufacturing method thereof

Abstract

The invention discloses a terahertz cascaded traveling wave tube frequency doubling device and a manufacturing method thereof, and belongs to the field of vacuum electronic devices. Between an outputslow wave structure part of a traveling wave tube and a collector, cascading of a harmonic system can be performed at least 1 to M for N times (M, N = 2, 3 -). Designing can be performed according tosteps; a traveling wave tube high frequency system controls the harmonic information of electron beams after interaction; and a cascaded harmonic system can realize harmonic power maximization and frequency response optimization, and output harmonic waves can be used as practical information. The harmonic information of the electron beams after interaction between traveling wave tubes can be optimized based on the non-linear modulation of electromagnetic waves on the electron beams; and full energy exchange can be performed by utilizing the cascaded harmonic system, so that frequency doublingamplification and output can be realized.

Description

technical field [0001] The invention belongs to the field of vacuum electronic devices, and in particular relates to a terahertz cascaded traveling wave tube frequency multiplication device when the frequency enters the terahertz frequency band. Background technique [0002] Terahertz (THz) waves refer to electromagnetic waves with a frequency range of 100GHz-3000GHz, which have many potential applications in military, medical, industrial and other fields. The research and development of terahertz sources is the primary task in terahertz science and technology, and it is the premise and key to carry out terahertz applied research. The remarkable characteristics of high frequency and high power of vacuum electronic devices indicate that they have the ability to fill the terahertz gap. [0003] Traveling wave tube (TWT) is an important vacuum electronic device. figure 1 It is a structural schematic diagram of an ordinary traveling wave tube in the prior art. It can be seen f...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is that in the prior art, the working state of ordinary traveling wave tubes only considers increasing the output power of the fundamental wave, but only suppresses the harmonic power mainly composed of the second harmonic. Traditional devices The unfavorable factor of harmonics must be avoided to destroy the performance of the traveling wave tube

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