穿越頻率 的英文怎麼說
中文拼音 [chuānyuèbīnlǜ]
穿越頻率
英文
cross-over frequency- 穿 : Ⅰ動詞1 （破; 透） pierce through; penetrate 2 （通過孔、隙、空地等） pass through; cross; go thro...
- 越 : Ⅰ動詞1 （跨過; 跳過） get over; jump over 2 （超出） exceed; overstep 3 （昂揚） （of one s voice...
- 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
- 穿越 : （橫穿） pass through; cut across
- 頻率 : frequency; rate
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Algan / gan hemt has high breakdown electric field, fast electron drift velocity and large electron concentration, so it has been used more and more in high frequency and large power fields
Algan / ganhemt由於具有擊穿電壓高、電子漂移速度快和電子濃度大等特點，已被越來越多地應用於高頻及大功率領域。In this paper, first, the study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied. then, the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position are obtained. and, the group velocity and energy velocity of wave packet through barrier are calculated
從90年代開始， emig和martin 、 landauer等人研究了分段填充不同介質的波導中的電磁脈沖的傳播。在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式，然後，採用magic程序模擬了這種波導結構中電磁波的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖，並由模擬結果計算了波包穿越勢壘的群速和能量速度。By closely monitoring the precise frequencies of the spectrum that were lost in the passage the passage through empty space, astronomers were actually able to pinpoint the size of different types of these grains, all ranging from less than 1 / 100th of a micron to 10 microns in size, with each micron representing one millionth of a meter
通過對穿越真空途中丟失了的光的精細頻率的密切監視，天文學家已經基本上可以查明這些不同微粒的大小，大小從小於百分之一微米到十微米之間，一微米表示一米的百萬分之一。
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