Equivalent Circuit Analysis of a Ring–Bar Slow-Wave Structure for High-Power Traveling-Wave Tubes

Author

Datta, Subrata Kumar ; Naidu, Vemula Bhanu ; Rao, Pamisetty Raja Ramana ; Kumar, Lalit ; Basu, Baidyanath

Author_Institution

Microwave Tube R&D Center, Defence R&D Organ., Bangalore, India

Volume

56

Issue

12

fYear

2009

Firstpage

3184

Lastpage

3190

Abstract

A simple equivalent circuit analysis of the ring-bar slow-wave structure of a traveling-wave tube is developed, using the coupled transmission-line approach, for the dispersion and interaction-impedance characteristics of the structure. The effects of the ring and the bar widths of the structure are included in the analysis. The analysis is validated, with respect to 1) an X-band structure, against both measurement and simulation, as well as 2) a Q-band structure, against simulation.

Keywords

slow wave structures; coupled transmission-line approach; dispersion characteristics; equivalent circuit analysis; high-power traveling-wave tubes; interaction-impedance characteristics; ring-bar slow-wave structure; Analytical models; Circuit analysis; Circuit simulation; Dielectrics; Equivalent circuits; Frequency; Impedance; Research and development; Structural beams; Transmission lines; Coupled transmission line; equivalent circuit analysis; high-power traveling-wave tubes (TWTs); ring-and-bar structure analysis; slow-wave structure (SWS);

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2009.2030710

Filename

5306158