Numerical analysis of the influence of reflections on gyrotron operation

Author

Grudiev, A. ; Jelonnek, J. ; Schunemann, K.

Author_Institution

Tech. Univ. Hamburg-Harburg, Germany

fYear

2000

fDate

12-15 Sept. 2000

Firstpage

387

Lastpage

388

Abstract

The results of a newly developed self-consistent time-domain (TD) analysis of gyrotron operation in the presence of reflections are reported. The influence of reflections of different kind on the operation of a 1 MW, 140 GHz, TE/sub 22,6/-mode gyrotron has been investigated numerically for a wide range of parameters. In some cases, this investigation demonstrates an unstable behavior of the gyrotron oscillator whose output signal shows a broad spectrum up to about 12% of relative width. The numerical results agree well with results obtained from an experimental gyrotron at Forschungszentrum Karlsruhe.

Keywords

cavity resonators; electromagnetic wave reflection; gyrotrons; millimetre wave generation; millimetre wave oscillators; millimetre wave tubes; numerical analysis; stability; time-domain analysis; 1 MW; 140 GHz; Forschungszentrum Karlsruhe; TE/sub 22,6/-mode gyrotron; broad spectrum; experimental gyrotron; gyrotron operation; gyrotron oscillator; numerical results; output signal; reflections; relative width; self-consistent time-domain analysis; unstable behavior; Differential equations; Eigenvalues and eigenfunctions; Electromagnetic fields; Gyrotrons; Numerical analysis; Optical reflection; Oscillators; Power generation; Steady-state; Windows;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on

Conference_Location

Beijing, China

Print_ISBN

0-7803-6513-5

Type

conf

DOI

10.1109/ICIMW.2000.893073

Filename

893073