Dynamics of mode competition in the gyrotron backward-wave oscillator

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The dynamics of axial mode competition in the gyrotron backward-wave oscillator (gyro-BWO) has been investigated in theory and experiment. Because of the difference in field-shaping processes, the axial modes of the gyro-BWO each exhibit a distinctive asymmetry in field distribution along the axis. Multi-mode particle simulations and time-frequency analyses reveal a consistent pattern of axial mode competition in which a fast-growing and well-established mode is subsequently suppressed by a slowly-growing mode with a favorable field profile. This is verified in a Ka-band gyro-BWO experiment.

Original languageEnglish
Title of host publicationHIGH ENERGY DENSITY AND HIGH POWER RF
Subtitle of host publication7th Workshop on High Energy Density and High Power RF
Pages191-196
Number of pages6
DOIs
StatePublished - 3 Jan 2006
EventHIGH ENERGY DENSITY AND HIGH POWER RF: 7th Workshop on High Energy Density and High Power RF - Kalamata, Greece
Duration: 13 Jun 200517 Jun 2005

Publication series

NameAIP Conference Proceedings
Volume807
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceHIGH ENERGY DENSITY AND HIGH POWER RF: 7th Workshop on High Energy Density and High Power RF
Country/TerritoryGreece
CityKalamata
Period13/06/0517/06/05

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