Thermal and structural analysis of electron gun for high efficiency space TWT

Author

Gahlaut, V. ; Sharma, R.K. ; Srivastava, V.

Author_Institution

Microwave Tubes Div., Central Electron. Eng. Res. Inst. (CEERI), Pilani, India

fYear

2009

fDate

22-24 Dec. 2009

Firstpage

409

Lastpage

412

Abstract

Travelling wave tubes (TWTs) are power amplifier for communication satellite. As the electron gun plays a significant role in determining the life and reliability of the space TWT, the same has been subjected for 3-dimensional thermal and structural analysis using FEA code COSMOS and ANSYS. Expansion in different electrodes like cathode, beam focus electrode (BFE) and anode in axial and radial direction has been simulated due to temperature distribution in the gun. In addition to the above, frequency analysis of electron gun assembly has also been carried out. A comparison of COSMOS and ANSYS results has been presented.

Keywords

electron guns; finite element analysis; power amplifiers; satellite communication; temperature distribution; thermal analysis; transponders; travelling wave tubes; 3-dimensional structural analysis; 3-dimensional thermal analysis; ANSYS; FEA code COSMOS; beam focus electrode; communication satellite; electron gun; frequency analysis; power amplifier; space TWT reliability; temperature distribution; travelling wave tubes; Anodes; Artificial satellites; Assembly; Cathodes; Electrodes; Electrons; Frequency; Power amplifiers; Space exploration; Temperature distribution; electron gun; frequency analysis; space TWT; structural analysis; thermal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Trends in Electronic and Photonic Devices & Systems, 2009. ELECTRO '09. International Conference on

Conference_Location

Varanasi

Print_ISBN

978-1-4244-4846-3

Type

conf

DOI

10.1109/ELECTRO.2009.5441081

Filename

5441081