An overmoded coaxial buncher cavity for a 100-MW gyroklystron

Author

Castle, M. ; Anderson, J. ; Lawson, W. ; Saraph, G.P.

Author_Institution

Maryland Univ., College Park, MD, USA

Volume

8

Issue

9

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

302

Lastpage

304

Abstract

An overmoded abrupt transition coaxial buncher cavity has been designed and experimentally cold tested for use in a second-harmonic 17.136-GHz three-cavity 100-MW gyroklystron. Circuit efficiencies of 41% can be achieved with a buncher cavity that has a quality factor of 389 in the TE₀₂₁ mode. Scattering matrix and finite-element codes were used to design and model the cavity theoretically and to determine that the cavity would be stable to oscillation. The experimental cold testing confirmed these results and refined the final dimensions from the theoretical models

Keywords

Q-factor; S-matrix theory; cavity resonators; finite element analysis; gyrotrons; klystrons; microwave amplifiers; microwave tubes; stability; 100 MW; 17.136 GHz; 41 percent; TE₀₂₁ mode; abrupt transition; finite-element codes; gyroklystron; modelling; overmoded coaxial buncher cavity; quality factor; scattering matrix; second-harmonic type; three-cavity configuration; Ceramics; Circuits; Coaxial components; Klystrons; Microwave amplifiers; Q factor; Scattering; Tellurium; Testing; Transmission line matrix methods;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.720462

Filename

720462