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Simulation and characterization of Cylindrical RF cavity with output section coupling for 250 kW CW C-band klystron

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10 Author(s)
Lamba, O.S. ; Microwave Tubes Div., Council of Sci. & Ind. Res., Pilani, India ; Kaushik, M. ; Joshi, L.M. ; Meena, R.
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The klystron is a microwave tube capable to produce very high power that find wide use in communication, radar, material processing, particle accelerators and thermonuclear fusion reactors. The RF section has an important role in deciding the RF performance of the tube, such as its gain, band width, efficiency etc. The RF section is a integration of 6 numbers RF resonant cavities. The fabrication of cavities was carried out through machining of piece parts, brazing, and characterized through cold testing. Output section of klystron consist of reduce wave guide, step transformer and RF window assembly coupled with RF cavity. The coupling parameters loaded Q and VSWR are analytical calculated to match the cavity with output section. The simulation of output coupling carried out using CST microwave studio code. The analytical results are well matched with simulated results. An experimental assembly of RF cavity with output section fabricated. The paper presents the design and Characterization of Cylindrical RF cavity with Output section coupling for a 250 kW CW C-band klystron being developed at CEERI Pilani.

Published in:

Vacuum Electronics Conference (IVEC), 2011 IEEE International

Date of Conference:

21-24 Feb. 2011