National Tsing Hua University Institutional Repository:Frequency tunable gyrotron using backward-wave components
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    National Tsing Hua University Institutional Repository > 理學院 > 物理系 > 期刊論文 >  Frequency tunable gyrotron using backward-wave components


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    题名: Frequency tunable gyrotron using backward-wave components
    作者: T. H. Chang;T. Idehara;I. Ogawa;L. Agusu;S. Kobayashi
    教師: 張存續
    日期: 2009
    出版者: American Institute of Physics
    關聯: Journal of Applied Physics, American Institute of Physics, Volume 105, Issue 6, March 2009, Pages 063304 (4 pp.)
    关键词: frequency tunable gyrotron
    backward-wave components
    millimeter regime
    摘要: We report a frequency tunable scheme for the gyrotron at millimeter/submillimeter regime. Unlike the step-tunable type where oscillation frequencies change discretely, this scheme continuously adjusts the oscillation frequency as the magnetic field varies. It is a hybrid system, taking the advantages of the backward-wave interaction and the converter-free output structure. The characteristics of backward-wave interaction will be shown. A proof of principle experiment was conducted with a scaled cavity. The result shows the oscillation frequency smoothly transitions over a wide range of 6 GHz from 134 to 140 GHz. With proper design this mechanism is capable of producing medium output power with broad frequency tunability up to the terahertz region.
    URI: http://www.aip.org/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/55405
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