Zobrazeno 1 - 10
of 72
pro vyhledávání: '"E. M. Il'ina"'
Autor:
I. P. Medvedkov, E. M. Il’ina
Publikováno v:
Journal of Communications Technology and Electronics. 62:598-604
Equations of the multifrequency nonlinear theory of the traveling wave tube are derived using the fundamental frequency method. Basic results of the numerical calculation of the output parameters of a traveling wave tube operating in the multifrequen
Autor:
E. M. Il’ina, A. B. Danilov
Publikováno v:
Journal of Communications Technology and Electronics. 60:915-918
It is proposed to use frequency-dependent absorbers, which have significantly higher attenuation at the low frequency than at the high one for extension of the bandwidth of high-power wideband helical traveling-wave tubes (TWTs) toward lower frequenc
Publikováno v:
Journal of Communications Technology and Electronics. 58:353-356
To reduce the second harmonic level and enhance the efficiency and stability against backward-wave self-excitation of wideband helical traveling-wave tubes containing a screen with longitudinally conducting edges, it is suggested that the gap between
Autor:
A. B. Danilov, E. M. Il'ina
Publikováno v:
2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
Output parameters of TWT having waveguide outputs are calculated over the frequency range from 26 to 40 GHz. According to the proposed design of the interaction space, the absorber begins at once at the input of energy to provide the TWT stability to
Publikováno v:
Journal of Communications Technology and Electronics. 56:442-449
A method for determining the dielectric parameters of specimens placed into a resonator from changes in the values of the resonance frequency and quality factor is improved. It is shown that the improvement consists in expansion of the function conta
A high-power wideband traveling-wave tube with stepwise changes in the diameter of the drift channel
Publikováno v:
Journal of Communications Technology and Electronics. 52:943-948
Results of the design of a high-power wideband (in the band 8–18 GHz) traveling-wave tube (TWT) with stepwise changes in the diameter of the drift channel are presented. The TWT is stable against self-excitation by a backward wave at high values of
Publikováno v:
Journal of Communications Technology and Electronics. 51:1297-1305
The electrodynamic parameters (coupling impedance, slowing factor, and damping factor) of a wideband traveling-wave tube (TWT) are calculated as functions of the surface resistance of the absorbing layer and of the frequency. The data obtained are ap
Publikováno v:
Journal of Communications Technology and Electronics. 51:818-826
Dynamic defocusing in a wideband helical traveling-wave tube (TWT) with an output power of 1.5–2.0 kW in the continuous-operation mode is analyzed. The TWT contains fragments with normal and anomalous dispersion of the phase velocity. It is demonst
Autor:
A. B. Danilov, E. M. Il'ina
Publikováno v:
2014 International Conference on Actual Problems of Electron Devices Engineering (APEDE).
Autor:
E. M. Il’ina, A. B. Danilov
Publikováno v:
IEEE International Vacuum Electronics Conference.
A method of broadening the operation frequency range of traveling-wave tube (TWT) to a longwave edge by dint of using of frequency-dependent absorber is suggested. Realization of such absorber is possible by means of putting the absorption layer only