Design and development of 6.5 kW X-band inverted slot-mode coupled-cavity TWT

Author

Kamath, Sudhir ; Karmakar, Sanjay ; Hemamalini, R. ; Seshadri, R. ; Santra, M. ; Ramaswamy, Mala ; Christie, V. Latha ; Fazlunissa, B.M. ; Srinivasacharyulu, C. ; Kumar, Lalit ; Gennady, R. ; Golenitskii, I.I.

Author_Institution

Microwave Tube Res. & Dev. Centre, Bangalore, India

fYear

2004

fDate

27-29 April 2004

Firstpage

22

Lastpage

23

Abstract

An X-band coupled-cavity travelling wave tube (CC-TWT) with 6.5 kW peak power at 1.0% duty and 2% bandwidth has been designed and developed for airborne radar applications. It utilizes an inverted slot-mode coupled-cavity slow-wave structure which is also termed as an inter-digital structure when the slot-angle becomes quite large. This structure offers the advantages of higher efficiency, reduced cross-section and lesser weight but has relatively smaller bandwidth as compared to a conventional CC-TWT. The design of the required TWT carried out by MTRDC was modified and optimized jointly with ISTOK under a contract granted by MTRDC. The main specifications of the TWT are detailed in this paper.

Keywords

airborne radar; microwave tubes; slow wave structures; 6.5 kW; CC-TWT; X-band TWT; airborne radar; coupled-cavity travelling wave tube; cross-section reduction; inter-digital structure; inverted slot-mode TWT; slot-angle size; slow-wave structure; Bandwidth; Cathodes; Circuits; Design optimization; Magnetic flux; Magnetic separation; Radio frequency; Saturation magnetization; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International

Print_ISBN

0-7803-8261-7

Type

conf

DOI

10.1109/IVELEC.2004.1316178

Filename

1316178