空間截止頻率 的英文怎麼說
中文拼音 [kōngjiānjiézhǐbīnlǜ]
空間截止頻率
英文
spatial cut off frequency- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 止 : Ⅰ動詞1. (停止; 攔阻) stop; cut out 2. (截止) close; end Ⅱ副詞(僅; 只) only; just Ⅲ名詞(姓氏) a surname
- 頻 : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
- 率 : 率名詞(比值) rate; ratio; proportion
- 空間 : space; enclosure; room; blank; interspace
- 頻率 : frequency; rate
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The mode competition is much improved. it may operated with a large electron beam radius, that means decreasing the space charge effects compared with a smaller radius beam with the same current, hence the rbwo may operated with a low axial guide magnetic field. besides, the rbwo with a sinusoidal corrugated coaxial structure is very easy to manufacture
波紋內導體rbwo具有一些突出優點:同軸結構中內導體的存在使系統的截止頻率顯著升高,使得系統尺寸可比普通波紋波導慢波系統大;具有很大的抑制模式競爭的能力和很高的功率容量;可以採用大半徑電子注,在工作電流不變的情況下空間電荷效應大幅度降低,因而可以工作在低磁場狀態;此種慢波結構內導體上的波紋易於加工。The results also indicate that, in a piece of gain medium, the cutoff frequency, " the most quickly growing frequency " and the integral exponential gain are variables of the beam intensity, medium gain coefficient and propagation distance
在考慮了介質的增益后,截止空間頻率、最快增長頻率以及最大增長因子不再像原始b - t理論中那樣保持不變,它成了和光強、介質增益系數及傳播距離有關的一個量。Based on the nonlinear paraxial equation and b - t theory, a differential equation, which describes the small - scale self - focusing in gain ( loss ) media has been derived. the change rule of the maximal gain frequency, cutoff frequency and integral exponential gain have been analyzed approximately
我們首先從非線性近軸波方程出發,基於b - t理論的思想,在考慮了介質的增益(損耗)特性的情況下,推導得出了小尺度自聚焦所滿足的微分方程,並通過近似方法分析了最大增長頻率、截止空間頻率及積分指數增益等的變化規律。
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