nrd 中文意思是什麼
nrd
解釋
無輻射介質-
The novel three - dimensional finite - difference approximations of mur ' s absorbing boundary conditions are also presented in frequency - domain. then the ddm based on fdfd is investigated in the applications of three - dimensional electromagnetics problems. and it is used to analyze the leaky wave antenna based on image nonradiative dielectric ( nrd ) guide
最後，闡述了maxwell方程組和劃分區域的despres傳輸條件的頻域差分格式建立，在截斷邊界上構造了三維頻域mur條件的差分近似，探討了基於頻域有限差分的區域分解法在三維電磁問題中的應用實現，並將該演算法用於分析一種基於nrd波導結構的漏波天線。 -
Measurement method for dielectric properties of fine ceramics in millimeter wave frequency range - part 3 : dielectric resonator method excited by nrd - guide
毫米波頻率范圍內精細陶瓷介電性能的測量方法.第3部分: nrd導向激發的介電諧振器法
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