Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3400216
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- National Science Council of Taiwan
- Japanese Society for Promotion of Science
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This study investigates the electron dynamics of gyrotron interaction in a tapered waveguide and proposes an interaction structure for a 0.2 THz TE(02) reflective gyrotron backward-wave oscillator (gyro-BWO). The design shows the advantages of high power, continuous, and broadband frequency tuning, mode converter free, and inherently possesses mode-selective ability to suppress the potentially competing TE(22) mode. Calculated results indicate that the reflective TE(02) gyro-BWO is capable of generating a peak power of 3.3 kW corresponding to 26.3% interacting efficiency with a broad 3dB tuning bandwidth of 6.9 GHz at beam current I(b)=0.5 A and beam voltage V(b)=25 kV. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3400216]
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