矩量法

In this dissertation, normal force and tipping torque are studied using Maxwell stress tensor, and their difference between SLIM of steel secondary and SLIM of composite secondary is discussed.

本文应用麦克斯韦张量法对垂直力和颠簸转矩进行了分析计算，比较了钢次级电机与复合次级电机中这两种电机特性的差异，分析了纵向边端效应对它们的影响。

Based on the Maxwell Stress Tensor method, an effective torque calculation model was developed to eliminate the difficulties in torque calculation.

针对目前此类球形电机转矩计算的困难，基于麦克斯韦张量法推导并建立了有效的电机转矩计算模型，运用该方法对已知的电机模型进行分析，获得了典型的转矩特性。

Taking into account the influences of scatterer geometrical shapes on induced currents, an algorithm, termed the sparse-matrix method, is proposed to calculate radar cross section of aircraft configuration.

论证了散射体几何形状对感应电流的影响规律，并基于飞行器几何外形特征和矩量法，提出了一种用于飞行器雷达散射截面计算的高精度快速算法。

With the method of MOM,the gain matrix of antenna array is presented.

用矩量法推导并计算了三元八木天线阵的增益矩阵，进而分析在E面上增益与角度的关系，并给出了增益方向图的仿真结果。

Momentum is a Full-Wave Method of Moments simulator intended to be used for RF and Microwave component, circuit and planar antenna analysis.

Momentum是一个基于矩量法的全波仿真器，它主要用于分析RF及微波元器件、电路及平面结构天线。

According to the formulae on radiation and radiation resistance in antenna theories, the radiation characteristics are illustrated that the radiation of under considered can be neglected.

运用小波矩量法求出导线中的电流分布，进而给出两个尺寸不同的圆形电感在平面入射波作用下的辐射方向图，并进行分析比较。

Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.

在Vlasov天线方面：用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序，该程序计算结果在主瓣上与实验测量吻合良好，近旁瓣也基本一致；利用矩量法计算了天线的反射系数，表明该天线有较小的反射，总的能量反射小于0.25％；详细分析了天线的辐射特性，给出了天线辐射波束相关参数的估算公式和天线设计公式；进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性；对天线的密封方式和功率容量进行了讨论，结果表明在不需很大密封罩的情况下可以获得GW级的功率容量；为了用Vlasov天线辐射同轴TEM模，研究了TEM-TM_(01)模式转换器的设计，得到了一些基本规律；最后，介绍和分析了带有锥形喇叭的Vlasov天线。

The theoretical results of the radiation characteristics such as input impedance,gain and axial ratio of circular polarization are given,which are validated by experimentation.

基于矩量法的分析途径，本文提出了计算矩形腔十字裂缝天线的数值方法，给出天线单元的输入阻抗、增益和轴比等辐射特性的数值结果，并进行了实验验证。

The method of moments is used to analyze and calculate the broadband characters of impedance,voltage satanding wave ratio,gain and radiation pattern of larger angle LPDA,and the relation between these characters and the parameter of antenna construction is discussed in this paper.

本文采用矩量法分析和计算了对数周期天线在张角较大时，它的阻抗、电压驻波比、增益及方向图的宽带特性，讨论了这些特性与天线结构参数之间的关系。

Four types of resonators have been given and analyzed through moment method.

用矩量法对于4种滤波器的耦合形式进行了数值分析。

But in the course of internationalization, they meet with misunderstanding and puzzlement.

许多企业已经意识到了这一点，但在国际化的进程中，仍存在一些误区与困惑。

Inorder toaccomplish this goal as quickly as possible, we'll beteamingup with anexperienced group of modelers, skinners, and animatorswhosenames willbe announced in the coming weeks.

为了尽快实现这个目标，我们在未来数周内将公布与一些有经验的模型、皮肤、动画制作小组合作。