1) cutoff wave number
截止波数
1.
Due to the cross sections transverse to the transmission direction are not identical with one another, we give the association between cutoff wave numbers and radius, which is helpful to the design of .
首先通过分离变量法在圆柱坐标系中求解径向波导的场方程,从而得到其高阶模式的场分量和截止波数的表达式;然后探讨了径向波导的截止波数与半径之间的依赖关系以及径向波导高阶模式的传输特点,并给出了TEM模完整的单模传输条件,这将有助于径向线阵列天线的设计和功率容量的提高。
2) cutoff wavelength
截止波长
1.
A practical formula to calculate the cutoff wavelength of square and rectangular coaxial lines
一种方形及矩形同轴线截止波长的实用计算公式
2.
This paper presents the theoretical formula for obtaining the cutoff wavelength of single mode fibers,investigates the relation of the fiber darwing tension with the cutoff wavelength and the mode field diameter (MFD) of the fibers and establishes relational expressions for cutoff wavelenght and MFD by numerical analysis.
本文介绍了单模光纤截止波长的理论公式,分析和探讨了拉丝张力这一工艺参数与单模光纤截止波长、模场直径之间的关系,并运用数值分析的方法建立了截止波长和模场直径的关系式,最后指出了在实际生产中,如何通过改变拉丝张力而使得截止波长在合格范围内或更加趋于合理。
3.
This paper proposes to apply finite element method to analyze main mode cutoff wavelength of asymmetrical ridge site double-ridge waveguide,and provides the field patterns under several special situations.
提出了用有限元法分析脊位置不对称双脊波导的主模截止波长,并给出了几种特殊情形下的场结构图,得到了主模截止波长分别在脊位置变化、脊宽变化及脊高变化时的变化规律。
4) cut-off wavelength
截止波长
1.
The paper gives out the main parameters of the ridge waveguide, cut-off wavelength of the main module, the single module working band of the ridge waveguide, the characteristic impedance of the ridge waveguide, the power capacity of the ridge waveguide, the attenuation of the ridge waveguide, the completed calculation methods for the parameters and the correction curves of some parameters.
给出脊波导的主要参数 :主模截止波长、脊波导单模工作带宽、脊波导特性阻抗、脊波导功率容量、脊波导衰减 ,及各参数的完备计算方法、部分参数的修正曲
2.
The paper analyzes transmission characteristics change along with the changing curve of the ridged waveguides′dimensions,cut-off wavelength is longer along with the distance between the ridges increasing.
应用有限元分析方法计算了对称四脊矩形波导TE模式的传输特性,即截止波长和场结构图传输特性。
3.
The result shows that the content of Pt2Si in the PtSi film decreases obviously,the photocurrent of the detector is enhanced by above 50%,the cut-off wavelength is extended to 5.
用X射线衍射(XRD)分析了表面处理后的硅衬底上生长的PtSi薄膜的组分,结果表明,处理后所生长的PtSi薄膜中Pt2Si的含量明显减少,探测器光电流响应提高了50%以上,截止波长延长到5。
5) cut off wavelength
截止波长
1.
The fiber cut off wavelength is a critical parameter for single mode fiber.
光纤截止波长是单模光纤的一个重要参数 ,它与许多因素如模场直径、长度、弯曲、衰减等有关。
2.
Based on the electrostatic field theory and transmission line theory, characteristic impedance and cut off wavelength of special section coaxial transmission lines are calculated using Finite Element Method (FEM).
应用静电场的观点和导波传输理论 ,用有限元法 (FEM)分别计算了各种复杂截面同轴线特性阻抗、截止波长。
3.
Its composition and cut off wavelength at 80K were determined by using the empirical formula.
采用傅立叶变换红外（ＦＴＩＲ）透射的方法测量了碲镉汞晶片在不同厚度下的透射曲线，运用经验公式确定了其组分及８０Ｋ时的截止波长，并同实测的响应光谱得到的截止波长进行了比较，结果表明，采用该方法预测的截止波长同实际的截止波长相对偏差为２。
补充资料：波数
分子式：
CAS号：
性质：原子、分子和原子核的光谱学中的频率单位。符号为σ或v。等于真实频率除以光速，即波长(λ)的倒数，或在光的传播方向上每单位长度内的光波数。其常用单位为cm-1，SI制单位为m-1。
CAS号：
性质：原子、分子和原子核的光谱学中的频率单位。符号为σ或v。等于真实频率除以光速，即波长(λ)的倒数，或在光的传播方向上每单位长度内的光波数。其常用单位为cm-1，SI制单位为m-1。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条