High-frequency electron beam modulation, transportation and its interaction with slow-wave structure

2002 ◽  
Author(s):  
K. Chirko ◽  
Y.E. Krasik ◽  
A. Dunaevsky ◽  
J. Felsteiner
Keyword(s):  
Electron Beam ◽  
Slow Wave ◽  
High Frequency ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Beam Modulation

Analysis of High Frequency Characteristics for a Meander Line Slow-wave Structure

2020 ◽  
Author(s):  
Zheng Wen ◽  
Jirun Luo ◽  
Yu Fan ◽  
Chen Yang ◽  
Fang Zhu ◽  
...  
Keyword(s):  
Slow Wave ◽  
High Frequency ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Frequency Characteristics ◽  
Meander Line

Microwave Generation Using a Two Spiral Metamaterial Slow Wave Structure Driven by an Electron Beam

2018 ◽  
Author(s):  
Meiqin Liu ◽  
Sabahattin C. Yurt ◽  
Edl Schamiloglu ◽  
Mikhail I. Fuks ◽  
Ahmed Elfrgani ◽  
...  
Keyword(s):  
Electron Beam ◽  
Slow Wave ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Microwave Generation

Effect of helix thickness on high-frequency characteristics of helical slow-wave structure

2013 ◽  
Vol 25 (4) ◽  
pp. 945-949
Author(s):  
张青春 Zhang Qingchun ◽  
付成芳 Fu Chengfang ◽  
赵波 Zhao Bo
Keyword(s):  
Slow Wave ◽  
High Frequency ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Frequency Characteristics

Gain Analysis of a 0.2-THz Traveling-Wave Tube With Sheet Electron Beam and Staggered Grating Slow Wave Structure

2018 ◽  
Vol 65 (6) ◽  
pp. 2129-2134 ◽  
Author(s):  
Tatiana A. Karetnikova ◽  
Andrey G. Rozhnev ◽  
Nikita M. Ryskin ◽  
Alexey E. Fedotov ◽  
Sergey V. Mishakin ◽  
...  
Keyword(s):  
Electron Beam ◽  
Slow Wave ◽  
Traveling Wave ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Sheet Electron Beam

scholarly journals Design and efficient operation of a coaxial RBWO

2013 ◽  
Vol 31 (2) ◽  
pp. 321-331 ◽  
Author(s):  
Y. Teng ◽  
C.H. Chen ◽  
H. Shao ◽  
J. Sun ◽  
Z.M. Song ◽  
...  
Keyword(s):  
Electron Beam ◽  
Slow Wave ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Power Capacity ◽  
Efficient Operation ◽  
Backward Wave Oscillator ◽  
Wave Oscillator ◽  
Backward Wave ◽  
Output Efficiency

AbstractCoaxial relativistic backward wave oscillator with the rippled inner conductor not only increases the output efficiency but also results in the serious phenomenon of pulse shortening in experiments. Our research indicates that the two main mechanisms leading to the pulse shortening are the electron beam interruption and combining effects of the explosive field electron emission and the secondary electron multipactor on the surface of the slow-wave structure. In order to enhance its power capacity the electrodynamic structure is modified by detailed analysis of the field distribution in the coaxial slow-wave structure. The appropriate resonant reflector and the electron collector are developed for the application of the coaxial relativistic backward wave oscillator. A series of surface treatment is applied to enhance the power capacity of the coaxial RBWO. In the experiment, the microwave pulse duration is increased from less than 10 ns to 20 ns, and the output efficiency is enhanced from less than 20% to 34% employing the electron beam pulse of the full width at half maximum 28 ns. The peak power of 1.01 GW at the frequency of 7.4 GHz is achieved. It is found that the output efficiency of the coaxial RBWO is likely to be advanced if its power capacity can be boosted further.

Modeling a subterahertz traveling-wave tube with a slow-wave structure of the double grating type and a sheet electron beam

2016 ◽  
Vol 61 (1) ◽  
pp. 50-55 ◽  
Author(s):  
T. A. Karetnikova ◽  
A. G. Rozhnev ◽  
N. M. Ryskin ◽  
G. V. Torgashov ◽  
N. I. Sinitsyn ◽  
...  
Keyword(s):  
Electron Beam ◽  
Slow Wave ◽  
Traveling Wave ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Sheet Electron Beam
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