Suppressing RF breakdown of powerful backward wave oscillator by field redistribution

W. Song; J. Sun; Z. M. Song; C. H. Chen; H. Shao; Y. C. Zhang

doi:10.1063/1.3679546

AIP Advances (Mar 2012)

Suppressing RF breakdown of powerful backward wave oscillator by field redistribution

W. Song,
J. Sun,
Z. M. Song,
C. H. Chen,
H. Shao,
Y. C. Zhang

Affiliations

W. Song: Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shanxi, 710024, P.R.China
J. Sun: Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shanxi, 710024, P.R.China
Z. M. Song: Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shanxi, 710024, P.R.China
C. H. Chen: Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shanxi, 710024, P.R.China
H. Shao: Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shanxi, 710024, P.R.China
Y. C. Zhang: Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shanxi, 710024, P.R.China

DOI: https://doi.org/10.1063/1.3679546
Journal volume & issue: Vol. 2, no. 1
pp. 012118 – 012118-6

Abstract

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An over mode method for suppressing the RF breakdown on metal surface of resonant reflector cavity in powerful backward wave oscillator is investigated. It is found that the electric field is redistributed and electron emission is restrained with an over longitudinal mode cavity. Compared with the general device, a frequency band of about 5 times wider and a power capacity of at least 1.7 times greater are obtained. The results were verified in an X-band high power microwave generation experiment with the output power near 4 gigawatt.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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