Carbon nanotube cathodes as electron sources for microwave amplifiers

Carbon nanotube cathodes as electron sources for microwave amplifiers
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DOI：
10.1109/nano.2007.4601409
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发表时间：
2007-08
期刊：
2007 7th IEEE Conference on Nanotechnology (IEEE NANO)
影响因子：
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通讯作者：
E. Minoux;L. Hudanski;K. Teo;O. Groening;F. Peauger;D. Dieumegard;J. Schnell;L. Gangloff;G. Amaratunga;W. Milne;J. Robertson;P. Legagneux
E. Minoux;L. Hudanski;K. Teo;O. Groening;F. Peauger;D. Dieumegard;J. Schnell;L. Gangloff;G. Amaratunga;W. Milne;J. Robertson;P. Legagneux
中科院分区：
其他
文献类型：
--
作者：
E. Minoux;L. Hudanski;K. Teo;O. Groening;F. Peauger;D. Dieumegard;J. Schnell;L. Gangloff;G. Amaratunga;W. Milne;J. Robertson;P. Legagneux

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基于碳纳米管的冷阴极允许产生调制电子束。使用纵横比约为200的垂直排列的CN阵列，我们证明了高电流密度束（在1.5和32 GHz频率下约1 A/cm 2）的调制。这种CN阴极非常有希望用于在10和100 GHz之间工作的新一代紧凑、高效和低成本放大器。
Cold cathodes based on carbon nanotubes allow to produce a modulated electron beam. Using an array of vertically aligned CNs that exhibit an aspect ratio of about 200, we demonstrated the modulation of a high current density beam (~ 1 A/cm2 at 1.5 and 32 GHz frequencies. Such CN cathodes are very promising for their use in a new generation of compact, highly efficient and low cost amplifiers that operate between 10 and 100 GHz.