Thermal and Electromagnetic Analysis of Materials for RF Window of C-band 250 kW CW High Power Klystron

Kaushik, M and Lamba, OS and Kumar, S and Jindal, V and Singh, V and Ratan, S and Pal, D and Joshi, LM (2010) Thermal and Electromagnetic Analysis of Materials for RF Window of C-band 250 kW CW High Power Klystron. In: 2010 National Conference on Electronics, Computers and Communications (NCECC-2010), March 6-7, 2010, Gwalior (M.P.). (Submitted)

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Abstract

The paper presents the thermal analysis of RF window for C-band 250 kW CW power klystron using different materials such as Alumina, Aluminium Nitride and Diamond . The thermal analysis of the window has been carried out using the ANSYS software. The proposed window is designed for 5 GHz operating frequency for handling 250 kW of RF power. In the proposed window geometry, metallized disc of diameter 56 mm and thickness 1.5 mm is brazed in a cylindrical waveguide of diameter 56 mm. The cylindrical waveguide is terminated to WR 187 waveguide at its both ends. Different temperature profiles are obtained for above three materials. Cooling channel designed around the window outside surface for proper cooling of the window by flowing coolant in it. The coolant flow rate changed from 5 to 15 L/min to check the cooling effect with variation of flow rate and found that 5 L/min. flow rate is effective for the structure for cooling the required power dissipation. The window performance has been found satisfactory for microwave transmission.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	RF Window; Klystron; pill-box type; Alumina; AIN; Diamond.
Subjects:	?? TK ?? Microwave Tubes > Klystrons
Divisions:	Microwave Tubes
Depositing User:	Mr. Jitendra Nath Bajpai
Date Deposited:	23 May 2013 08:48
Last Modified:	23 May 2013 08:48
URI:	http://ceeri.csircentral.net/id/eprint/80

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