Numerical Simulation and Experimental Study of Sub-THz and THz CW Clinotron Oscillators

Results of computer modeling for the sub-THz and THz continuous-wave clinotrons are presented together with the results of their experimental investigations. Presented simulation results are obtained with both the computation methods and the statistical processing of real device operational paramete...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on electron devices Vol. 65; no. 6; pp. 2177 - 2182
Main Authors Kovshov, Yurii S., Ponomarenko, Sergey S., Kishko, Sergey A., Khutoryan, Eduard M., Kuleshov, Alexei N.
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2018
Subjects
Backward wave oscillator
beam–wave interaction
Cathodes
clinotron
Electron beams
Focusing
Gratings
magnetic focusing system
Magnetostatics
Mathematical model
Rough surfaces
sheet electron beam
Online AccessGet full text

Cover

More Information
Summary:Results of computer modeling for the sub-THz and THz continuous-wave clinotrons are presented together with the results of their experimental investigations. Presented simulation results are obtained with both the computation methods and the statistical processing of real device operational parameters. This combination provides relevant output results. The effect of weakly inhomogeneous magnetic field on the electron beam adjustment in clinotron oscillator is clearly shown with the carried out 3-D particle tracking modeling. The effect of the surface roughness and thermal heating of the grating structure on a clinotron operation is also considered, and obtained results were considered during computer modeling. The 3-D thermal heating analysis in clinotron was performed, and its influence on ohmic losses was analyzed. Comparison of beam-wave interaction simulation and experimental results has been presented and discussed.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2018.2792258