T
Takuji Kimura
Publications - 35
Citations - 493
Takuji Kimura is an academic researcher. The author has contributed to research in topics: Amplifier & Inductive output tube. The author has an hindex of 8, co-authored 35 publications receiving 335 citations.
Papers
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Journal ArticleDOI
Performance of a Nano-CNC Machined 220-GHz Traveling Wave Tube Amplifier
Anisullah Baig,Diana Gamzina,Takuji Kimura,John Atkinson,Calvin Domier,Branko Popovic,Logan Himes,Robert Barchfeld,Mark Field,Neville C. Luhmann +9 more
TL;DR: In this article, the authors report on hot test measurements of a wide-bandwidth, 220-GHz sheet beam traveling wave tube amplifier developed under the Defense advanced research projects agency (DARPA) HiFIVE program.
Journal ArticleDOI
Demonstration of a High Power, Wideband 220-GHz Traveling Wave Amplifier Fabricated by UV-LIGA
Colin D. Joye,Alan M. Cook,Jeffrey P. Calame,David K. Abe,Alexander N. Vlasov,Igor A. Chernyavskiy,Khanh T. Nguyen,Edward L. Wright,Dean E. Pershing,Takuji Kimura,Mark Hyttinen,Baruch Levush +11 more
TL;DR: In this paper, the first vacuum electronic traveling wave amplifier incorporating an interaction circuit fabricated by ultraviolet photolithography and electroforming, demonstrating over 60 W of output power at 214.5 GHz from a 12.1 kV, 118 mA electron beam.
Journal ArticleDOI
Development of a 100-W 200-GHz High Bandwidth mm-Wave Amplifier
Mark Field,Takuji Kimura,John Atkinson,Diana Gamzina,Neville C. Luhmann,Brad Stockwell,Thomas Grant,Zachary Griffith,Robert Borwick,Christopher Hillman,Berinder Brar,Thomas Reed,Mark J. W. Rodwell,Young-Min Shin,Larry R. Barnett,Anisullah Baig,Branko Popovic,Calvin Domier,Robert Barchfield,Jinfeng Zhao,John A. Higgins,Yehuda Goren +21 more
TL;DR: In this article, the authors proposed a traveling-wave tube amplifier with a measured output power of 107 W with a 3-dB bandwidth of 6 GHz centered on 200 GHz, and the power-bandwidth product of this amplifier was 642 W-GHz.
Proceedings ArticleDOI
Demonstration of a high power, wideband 220 GHz serpentine waveguide amplifier fabricated by UV-LIGA
Colin D. Joye,Alan M. Cook,Jeffrey P. Calame,David K. Abe,Khanh T. Nguyen,Edward L. Wright,Alexander N. Vlasov,Igor A. Chernyavskiy,Takuji Kimura,Baruch Levush +9 more
TL;DR: In this article, the authors present the hot test results of a 220 GHz, serpentine waveguide vacuum electron amplifier showcasing a novel embedded monofilament microfabrication technique based on UV-LIGA.
Journal ArticleDOI
Broadband 220-GHz Vacuum Window for a Traveling-Wave Tube Amplifier
TL;DR: In this paper, the authors present electromagnetic cold-test measurements of BeO ceramic pillbox vacuum windows for a 220 GHz traveling-wave tube amplifier with a 25 GHz frequency band center in the range of 212-225 GHz.