传输线

The full space calculation model, which suits for the asymmetric structure sometimes even including air below the surface of medium, can enable simulative result to approach real one. The FDTD algorithm based on the mixed ABCs is proper to calculate the transmission line where the electromagnetic wave is transmitted in order to send electromagnetic energy along central conductor. The calculation efficiency will be raised if the PML absorbing boundary condition is set on both planes of transmitting direction and so is the MUR two-order absorbing boundary condition in the other planes.

全空间计算模型是适合所有的不对称结构的待研究体的，而且包括了介质下面的空气部分，使仿真更加的接近实验真实情况；基于MUR-PML混合吸收边界条件的时域有限差分法非常适合计算传输线这种结构，因为传输线是传送电磁波的，电磁能量主要是沿着中心导带行进，因此在两个传输端面上设置PML完全匹配层吸收边界条件，在其他面上设置MUR二阶吸收边界条件，会大大提高计算效率，而且计算结果与XFDTD仿真软件计算结果相比较，基本趋于一致。

In this paper, by supposing the currents on the two lines are equal but opposite and with the application of bifilar transmission-line theory, the current-voltage relationships of the asymmetrical bifilar even transmission line are obtained.

该文在假设双线传输线两线上电流大小相等、方向相反的条件下，运用双线传输线理论思想，推得不对称双线均匀传输线的电压、电流关系。

Further more, transmission systems with branches of uniform and nonuniform transmission lines can be studied with this method conveniently. Two approaches for solving the ABCD matrices of nonuniform lines are given, one is the method of equivalent cascaded network chain, another is the one-step method.

波形张驰迭代法最近几年才被用来分析多导体传输线的时域响应，在第五章作者用此方法首次分析了具有频变参数的传输线，并将波形的概念进一步推广，给出了用波形张驰迭代技术求解非均匀传输线ABCD矩阵的方法。

A two-bit phase shifter with distributed microelectromechanical system transmission line is developed,and a novel structure which be actuated by coplanar waveguide transmission line (CPW-actuation structure) is proposed,which can reduce the actuation voltage significantly.

采用分布式微机械传输线结构实现了两位移相器，并且为了减小传输线负载电容和驱动电压首次提出了用共面波导传输线来驱动微机械桥的结构。

The results of numerical computation show that pulse transmission line of multi-small-loading capacitance with proportional spacing can be well compensated by the equivalent distributed capacitance method.

图1为快脉冲传输线负载模型，根据传输线理论和分布参数理论，取样门最终可等效为加载到传输线的多个容值很小(0.3 pF)的电容负载。

The analytical solutions for the ABCD matrices of uniform transmission lines are expanded into matrix infinite series with very simple terms, from which two important properties about the time-domain response of all kinds of transmission lines are obtained. The lines analyzed may have frequency-dependent parameters and arbitrary terminals.

由于网络理论中ABCD矩阵的特殊性质，该方法对非均匀传输线时域响应的分析具有更大的优越性，能分析的传输线可以具有频变参数和任意负载终端，给出了计算非均匀传输线ABCD矩阵的两种方法，一种是将非均匀传输线等效为一系列由长度很短的均匀传输线构成的子网络的级联，另一种是用单步法直接求解ABCD矩阵所满足的微分方程。

The result shows that:(1) the changing trend from center to edge of different level differs in three part,concussion very near the upper transmission line,increasing at first and then decreasing near upper and lower lines,and monotone decreasing other part;(2) the ±10% uniform field area of inner simulator is formed of two parts: one is the area with height of 20% to 85% and width of 80% from the center,the other is the area with height below 20% and width of 30% from the center.

仿真结果表明：从不同高度中心到边缘的场强变化趋势来看，最接近上传输线的位置为振荡，接近上下传输线的位置是先增大后减小，其余区域为单调减小；模拟器内部垂直极化场的±10%均匀场区域为模拟器传输线空间处于高度的20%-85%，宽度的80%区域，接近下传输线位置的高度的20%以下，宽度的30%以内。

This paper deals with the partial capacitance calculation of the high voltage transmission line for the neutral beam injectors.

该文研究了中性束注入系统中高压传输线部分电容的求解问题；根据传输线多层同轴导电壳的结构特点，利用多重镜像法确定与平行导线相应的一系列的镜像线电荷，求解的问题变为由一系列平行线电荷构成的电场问题，传输线的部分电容则通过各导体间的电位系数来求得；这一方法避免了直接求解的困难以及大量数值计算等问题。

This method transforms the problem of time-domain response analysis from differential equations with boundary conditions to ones with initial conditions describing the ABCD matrices of multiconductor transmission lines, which are much easier to solve from the mathematics point of view.

在第四章，通过引入传输线的ABCD矩阵，提出了多导体传输线时域响应分析的一种新方法，该方法将时域响应分析从边值问题的微分方程转化为数学上更易求解的初值问题的微分方程，对传输线各个传输模式进行了综合考虑，避免了来回跟踪反射波的复杂过程。

In this thesis, the problems of impedance matching are studied based on the theory of nonreciprocal transmission lines, the broadband matching methods of nonreciprocal transmission lines are put forward.

本文在非互易传输线理论的基础上，对非互易传输线的阻抗匹配问题进行了研究，提出了非互易传输线宽带匹配的方法。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。