Design, Development and Testing of RF Window for C band 250 kW CW Power Klystron
IR@CEERI: CSIR-Central Electronics Engineering Research Institute, Pilani
View Archive Info| Field | Value | |
| Title |
Design, Development and Testing of RF Window for C band 250 kW CW Power Klystron
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| Creator |
Lamba, OS
Kaushik, M Kumar, S Jindal, V Singh, V Ratan, S Pal, D Kant, D Joshi, LM |
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| Subject |
Klystrons
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| Description |
The paper presents the design fabrication and
cold testing of vacuum RF window for C-band 250 kW
CW power klystron. The electromagnetic simulation of
the window has been carried out using the CST
microwave studio software. The proposed window is
designed for 5 GHz operating frequency for handling 250
kW of RF power. In the proposed window geometry,
metallized alumina disc (99.5 % purity) 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. The
return loss and insertion loss of the above mentioned
window has been found to be –48 dB and 0.05 dB
respectively which are well matched with experimental
values. The bandwidth of 170 MHz was achieved. The
thermal analysis is carried out using ANSYS code.
Different temperature profiles are obtained for different
values of dielectric loss. The temperature range on the
alumina disc surface is found to be 33.7°C – 92.9°C for
the dielectric loss of 30.95 watts in the window disc
material. 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.
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| Date |
2010
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| Type |
Conference or Workshop Item
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ceeri.csircentral.net/181/1/67_2009_%28v%29.pdf
Lamba, OS and Kaushik, M and Kumar, S and Jindal, V and Singh, V and Ratan, S and Pal, D and Kant, D and Joshi, LM (2010) Design, Development and Testing of RF Window for C band 250 kW CW Power Klystron. In: 11th IEEE International Vacuum Electronics Conference (IVEC-2010), May 18-20, 2010, Monterey, California, USA. (Submitted) |
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| Relation |
http://ceeri.csircentral.net/181/
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