Investigation of a smooth bore harmonic cusp gun gyro-TWT

Author

Harriet, S.B. ; McDermott, D.B. ; Luhmann, N.C., Jr.

Author_Institution

Dept. of Appl. Sci., California Univ., Davis, CA, USA

fYear

2003

Firstpage

170

Lastpage

171

Abstract

For the stability of any amplifier, it is desirable to suppress as many unnecessary circuit modes as possible. In this paper, the dispersion diagram for the Ka-band Cusp gun second-harmonic TE₂₁ gyro-travelling-wave-tubes (TWT) amplifier is given. The dispersion diagram shows the grazing intersection of the second-harmonic cyclotron resonance and the TE₂₁ mode of the circular waveguide circuit which represents the mode of operation. The diagram also shows other potential oscillating modes. The mode selective circuit is employed in the device to destroy the odd-order TE_m1 modes is also given.

Keywords

circular waveguides; cyclotron resonance; gyrotrons; travelling wave amplifiers; travelling wave tubes; Ka-band Cusp gun second-harmonic TE₂₁ gyro-travelling-wave-tubes amplifiers; amplifier stability; circular waveguide circuit; dispersion diagram; mode selective circuit; potential oscillating modes; second-harmonic cyclotron resonance; smooth bore harmonic cusp gun gyro-TWT; travelling wave tubes; Boring; Circuit simulation; Circuit stability; Costs; Cranes; Cyclotrons; Fabrication; RLC circuits; Resonance; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics, 2003 4th IEEE International Conference on

Print_ISBN

0-7803-7699-4

Type

conf

DOI

10.1109/IVEC.2003.1286211

Filename

1286211