關(guān)于迴旋管空間增長(zhǎng)率和時(shí)間增長(zhǎng)率問(wèn)題
A NOTE ON THE SPATIAL GROWTH RATE AND TEMPORAL GROWTH RATE IN GYROTRON
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摘要: 正 (一)引言 目前,用Vlasov-Maxwell方程計(jì)算迴旋管中電磁波與電子的能量交換及波的相位漂移,有兩種方法:一是將波的角頻率看成不變的實(shí)數(shù),縱向波數(shù)kll產(chǎn)生一增量kll,其實(shí)部表示縱向波數(shù)的漂移,虛部表示空間增長(zhǎng)率,它們隨著距離z的增加而增長(zhǎng)。二是將波的縱向波數(shù)看成不變的實(shí)數(shù),波的角頻率產(chǎn)生一增量,其實(shí)部代表頻移,虛部代表時(shí)間增長(zhǎng)率,它們隨著時(shí)間t的增加而增長(zhǎng)。關(guān)于這兩種方法的使用問(wèn)題,尚有分歧
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關(guān)鍵詞:
Abstract: The general expressions of the spatial growth rate and temporal growth rate in a gvrotron are derived, and it shows that they are equivalent in calculating the phase shift and amplitude growth of the electromagnetic wave. -
Liu Shenggang and Yang Zhonghai, International Journal of Electronics, 51(1981), 341.[2]劉盛綱,成都電訊工程學(xué)院學(xué)報(bào),3(1983), 36.[3]Y. Y. Lau, et al.,International Journal of Infrared and Millimeter Waves, 2(1981), 395.[4]H. S. Uhm and R. C. Davidson, Phys. Fluids, 22(1979), 1804.[5]K. R. Chu, et al., IEEE Trans. on MTT, MTT-27(1979), 178.[6]張世昌,電子科學(xué)學(xué)刊,5(1983),247.[7]J. Y. Choe and S. Ahn, IEEE Trans. on ED, ED-28(1981), 94.[8]劉盛綱,中國(guó)科學(xué),11(1981), 1401.[9]張晉林等,電子科學(xué),2(1983), 21. -
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