Stability and tunability of the gyrotron backward-wave oscillator

T. H. Chang, C. T. Fan, K. F. Pao, K. R. Chu, S. H. Chen

Research output: Contribution to journalArticlepeer-review

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Abstract

To fulfill the broadband tunability of the gyrotron backward-wave oscillator (gyro-BWO), stability issues are studied and displayed in the form of stability maps. These maps serve as a guide for the identification and optimization of stable windows for broadband tuning. A Ka-band gyro-BWO experiment was conducted accordingly. In the case of a short interaction length, stable and smooth tunability of 1.3 GHz was demonstrated with a peak interaction efficiency of 29.8%. In the longer length case, piecewise-stable tuning curves were obtained, as predicted in theory.

Original languageEnglish
Article number191501
JournalApplied Physics Letters
Volume90
Issue number19
DOIs
StatePublished - 2007

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