English translation for "propagation constant"

传播常量
传播常数
扩散常数

Related Translations:

blast propagation:  爆炸波传播爆炸波的传播

propagation stall:  旋转失速

sonic propagation:  声波传播声传播声的传播

discrete propagation:  不连续传播

underground propagation:  地下传播

propagation eed:  传播速率

propagation difference:  传播路程差传播路径差别

overland propagation:  地面传播陆上传播

copy propagation:  复制传播复制传用

stall propagation:  失速传播

Example Sentences:

	1.	The radiation loss was obtained from the imaginary part of the complex propagation constant and the transition loss was calculated by two - dimension overlap integral method 基于计算得到的直弯波导的模场分布，采用二维重叠积分法计算了两者连接时的过渡损耗。
	2.	This antenna is a transmission line structure with propagation constant increasing from negative to positive values , providing the backward to forward scanning capability as frequency is increasing 这种天线基于传输线结构，其传播常数由负值增加到正值，显现出一种随频率增加而具有的由后向辐射变为前向辐射的特性。
	3.	Based on the semi - vector wave equation under cylindrical coordinate system , the mode distribution and complex propagation constant in bent waveguides were computed by a finite difference method with perfectly matched layer ( pml ) boundary condition 摘要以柱坐标下的半矢量波动方程为基础，采用基于完美匹配层( pml )边界条件的有限差分方法，对弯曲波导进行模式求解，进而得到波导弯曲引起的辐射损耗。
	4.	As beams transmit mostly in the core of waveguide , also the changes of thickness and refractive index of the sample will quickly and sensitively affect the propagation constant , the information of sample can be obtained through monitoring the propagation constant . 4 . the periodic anti - resonant reflecting layers are presented 由于光束集中在作为波导层的待测物之中传输,而由待测物质的厚度、折射率等参数带来的微小变化均会引起导模传播常数的变化,通过监测传播常数的变化即可得到待测物质的信息。
	5.	The physical meaning for each of the term in the coupling coefficient is stated . in particular , we advance firstly ( as far as our knowledge ) , that the birefringence can cause additional coupling for the directional coupler . then , taking the ti - diffused linbo3 directional coupler and the ti - diffused linbo3 with gradient refractive index for examples , we make the numerical simulation for the coupling coefficient or the propagation constant , which prove that the birefringence has played a crucial effect on the propagation constant and the coupling between the modes that we can not neglect 第二，我们推导出了弱导近似下各向异性光波导在任意微扰下的非正交耦合模理论，得到了物理意义鲜明的耦合波方程和耦合系数表达式，指明了耦合系数所包含的四项各自的物理意义及在不同条件下的取舍，首次提出在方向耦合器中双折射将引起附加的耦合，并以钛扩散铌酸锂方向耦合器和折射率渐变分布的钛扩散铌酸锂矩形波导为例对耦合系数进行了数值模拟，充分体现了双折射项对传播常数的影响。
	6.	To illustrate the superiority of this type of transition , the author adapted the local normal mode ( lnm ) based on couple - mode theory to explain the coupling between two lowest order modes along the transition . for the two important parameters , propagation constants difference between the two modes apy and mode coupling coefficient cy , which denoting power coupling between lnms , the approximation expressions using structure parameters were worked out . then the author compared three typical different transitions according to the demanding of power coupling , at last concluded that the parabolic - type transition can transport the light in shortest length with lowest loss 对于表征局部标准模之间功率耦合的两个重要的参数_ ( ij ) (模式传播常数差)和c _ ( ij ) (模式耦合系数) ，推导了用器件结构参数表达的近似公式，然后根据功率耦合的需求，在常见的三种不同轮廓的过渡区之间进行了比较，得出了抛物形轮廓过渡区能够使光束在最短尺寸内以最低损耗通过波导的结论。
	7.	In this paper a newly develoed helical coordinates is used to make out the solution of electromagnetic fields in the helix gap and calculate dispersion characteristics of tape helix slow wave structure for the first time . strict boundary conditions for magnetic fields are adopted and are treated rigorously by fourier expansion . besides , the radial propagation constant of every layer in the dielectric - loaded region is differentiated . some of practical tape helix slow wave structures have been calculated for dispersion characteristics and the calculated values accord with measured values very well . the authors also compare the calculated results with experiments for different structures by changing tape thickness or other structure parameters and find that the theory in the paper is universal 本文首次运用螺旋坐标系给出了带状螺旋线缝隙内的电磁场解，并据此计算了带状螺旋慢波结构的色散特性.文中采用了严格的边界条件，并以傅立叶展开进行了严格的数学处理.另外还首次对有介质区域内各层的径向传输系数作了区别.本文使用这种方法计算了我们已研制的一些宽带高功率行波管所用的慢波线结构的色散特性，理论与实验符合得很好.我们还计算了不同结构参数对色散特性的影响，并与实验作了对照，发现本文的理论有一定的普适性

Similar Words：

"propagation channel" English translation, "propagation characteristic" English translation, "propagation coefficient" English translation, "propagation condition" English translation, "propagation conditions" English translation, "propagation constant of a semiconductor" English translation, "propagation correction" English translation, "propagation culture" English translation, "propagation curve" English translation, "propagation d-cube" English translation