Design of an overmoded W-band TWT

Author(s)
Comfoltey, E. Nicholas; Shapiro, Michael; Sirigiri, Jagadishwar R.; Temkin, Richard J.
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Abstract
We report on the design and cold test validation of an overmoded TWT capable of producing power in excess of 100 Watts in the W-band and above. The TWT operates in the TM31 mode of a rectangular cavity and has transverse dimensions three times larger than a conventional ladder TWT. Dielectric loading of a resonant cavity was utilized to suppress lower order modes and prevent parasitic oscillations. HFSS and MAGIC3D codes were used to predict performance. An X-Ku band scaled down version of the interaction structure was built and cold tests performed on it showed excellent agreement with HFSS simulations.
Date issued
2009-08
URI
http://hdl.handle.net/1721.1/58958
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Plasma Science and Fusion Center
Journal
Proceedings of the IEEE International Vacuum Electronics Conference, 2009
Publisher
Institute of Electrical and Electronics Engineers
Citation
Comfoltey, E.N. et al. “Design of an overmoded W-band TWT.” Vacuum Electronics Conference, 2009. IVEC '09. IEEE International. 2009. 127-128. © Copyright 2009 IEEE
Version: Final published version
Other identifiers
INSPEC Accession Number: 10814346
ISBN
978-1-4244-3500-5
Keywords
overmoded, TWT, MAGIC3D, W-Band, ladder circuit
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