Propagating quasi-TE modes in a vacuum axisymmetric corrugated-wall waveguide

Author

Tanaka, Koji ; Minami, Kazuo ; Zheng, Xiaodong ; Carmel, Yuval ; Vlasov, Alexander N. ; Granatstein, Vcitor L.

Author_Institution

Graduate Sch. of Sci. & Technol., Niigata Univ., Japan

Volume

26

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

940

Lastpage

946

Abstract

The nonaxisymmetric quasi-TE modes in an axisymmetric corrugated-wall metal slow-wave structure are analyzed numerically and confirmed to coincide with test measurement. In our experiment of high-power backward-wave oscillators (BWOs), the oscillation of TE₁₁ mode was observed below the starting condition of the conventional axisymmetric TM₀₁ mode that has been mostly assumed in previous reports. The existence of nonaxisymmetric TE₁₁ mode must not be ignored for improved performance with a single frequency operation of high-power BWOs

Keywords

backward wave oscillators; microwave oscillators; slow wave structures; waveguide theory; TE₁₁ mode; axisymmetric TM₀₁ mode; high-power backward-wave oscillators; metal slow-wave structure; numerical analysis; propagating quasi-TE modes; vacuum axisymmetric corrugated-wall waveguide; Cyclotrons; Electron beams; Frequency; High power microwave generation; Magnetic fields; Microwave generation; Microwave oscillators; Tellurium; Testing; Waveguide components;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.700875

Filename

700875