本文主要研究了时域有限差分法（FDTD）在波导结构电磁场特性分析方面的应用。
This thesis presents the FDTD applications in the electromagnetic simulation of waveguide structures.
讨论了近场暗室的电磁场特性，对暗室入射场、反射场的关系进行了分析，给出在工程中实用的近场暗室场特性的计算方法。
This paper discusses the electromagnetism properties of the near field chamber, with the relationship between reflected wave and direct wave analyzed.
麦克斯韦方程中有某些特性是恒定不变的——磁场强度、电位移场以及描述电磁场电通量的坡印廷矢量。
Maxwell's equations conserve certain properties-the magnetic field intensity, the electric displacement field and the Poynting vector that describes the electric flux of an electromagnetic field.
验证电磁场影像及场型特性在近场与远场中之差异。
Verification of differences of characteristics of electromagnetic field image and radiation pattern in the near and far field are demonstrated.
根据实验结果，利用电磁学理论，分析了由于裂纹尖端电荷的加速运动所激发的电磁场强度及其频谱特性。
Based on the electromagnetic theory the relation between the acceleration movement of electric charge in the crack tip end, the value of electromagnetic field and the spectrum are analyzed.
为了能够更加深入的对电磁场进行研究，首先必须能够精确的测量出磁性材料的磁化特性。
In order to deeply study the electromagnetic field, first we must measure the magnetization characteristic of magnetic material with high accuracy.
加热的幅度取决于电磁场的幅度和频率，同时也取决于该物体的特性，例如电阻率、尺寸以及形状。
The amount of heating depends on the amplitude and frequency of the magnetic field, as well as on the characteristics of the object such, as its resistivity, size, and shape.
为了模拟薄膜声体波谐振器(FBAR)的电磁场(EM)分布特性，提出了一种新的FBAR建模方法。
For simulating the electromagnetic (EM) distribution of thin film bulk acoustic resonators (FBAR), a new FBAR modelling method was proposed.
报道了采用电磁场全波分析方法模拟高速数字微波共面带线传输线电磁互耦特性。
A full wave simulator for the electromagnetic coupling of coplanar-type strip line in high speed digital microwave IC is described.
详细论述了电磁场和永久磁场两种模式下，端部霍尔离子源的工作稳定性、离子能量大小以及离子束分布特性的比较。
Two patterns of end-Hall ion source using electromagnet coil or permanent magnet are comparatively analysed for ion energy and distribution.
在具有轴对称特性电磁场的数值分析中，用矩形截面环单元分析具有比其他单元更多的优点。
In the numerical analysis of axially symmetry electromagnetic field, the finite element method using ring unit with rectangular cross-section has more advantages than other methods.
然后定义相应的辅助函数，导出对应的微分关系，由此可分析电磁场作用下系统的热力学特性。
Then define related assisted functions, deduce corresponding differential expressions, therefore we can analyze the thermodynamic properties of the system in the electromagnetic fields.
还可以将外部刺激物(诸如，所施加的电磁场)施加到所述共振调节剂以增强其免疫刺激和引诱剂特性。
An external stimulus (such as an applied electromagnetic field) can also be applied to the resonance modulator to enhance its immune stimulating and attractant properties.
以提高无线电引信抗高功率微波干扰的能力为应用背景，采用基于时域有限差分方法（FDTD）的电磁场仿真软件XFDTD6.0，数值模拟高功率微波（HPM）的孔缝耦合特性。
To have radio fuze making better resistance to HPM jamming, the slot coupling characteristics of HPM pulse into cavity are studied by using the software XFDTD6.0 based on the method of FDTD.
介绍了射频同轴电缆线中电磁场分布特点和其特性阻抗表达式。
The distributing characteristics of the electromagnetism field in the RF coaxial cable and the expression of characteristic impedance are introduced.
利用电磁场软件模拟了行波管电磁线包磁场，以及在电磁线包磁场作用下电子注在慢波系统中的运动特性。
The magnetic field intensity of the solenoid used for travel wave tube and transport properties of electron beam in the slow wave system under its function is simulated with the electromagnetic code.
讨论了雷云对地放电过程中的雷电流的特性，解释了非周期雷电流产生的电磁场的特性，并用一个雷电流实例进行了分析说明。
The feature of electromagnetic wave produced on discharge process from thundercloud to ground is discussed. A non-cycle lightning current model is built to explain it.
本文用韦伯-夏夫海特林积分来表示半无限空间的场分量，并进而应用场匹配法计算了浅槽波导的电磁场分布特性。
A new method is presented to calculate the field distribution in the channel guide-using Weber-Schafheitlin integral and field matching method. Some numerical results are given for several cases.
本文应用电磁场和网络相结合的数值方法研究各种矩形波导印刷窗口的多模散射特性。
The printed Windows in rectangular waveguides have been investigated by a combined numerical method of the field and network theories to obtain their multi-mode scattering characteristics.
本文就均匀电磁场的判别、常见的均匀电磁场、均匀电磁场的形成及提高其空间特性等诸方面进行了论述。
This paper discusses the determination of the uniform electromagnetic field, gives some common examples of it, expounds its formation and introduces the ways of improving its spatial properties.
平面电磁波作为一种理想的电磁波型，其在均匀介质中的传播特性分析是电磁场理论基础教学的核心内容。
The basic relation equations connecting electric field and magnetic field in a plane electromagnetic wave are simply derived, and the characteristics of the electromagnetic wave are discussed.
时变电磁场与马克思威尔方程式、电磁波、电磁辐射特性（发射，吸收及散射）。
Time-dependent electromagnetic fields and Maxwell's equations. Electromagnetic waves, emission, absorption, and scattering of radiation.
根据电磁场在包层边界应满足的基本关系，建立了描述其带隙结构的特征方程，给出了特征方程迭代求解的算法描述，为电磁波传播特性数值仿真分析提供了理论基础。
With the boundary conditions satisfied by the electromagnetic fields in the interface between the crystal and the clad, the characteristic equation to describe the band gap structure is deduced.
而采用试验研究方法也只能获取某个特定区域的电磁场传播特性参数值。
And test method can be used to provide some EM propagation parameters in a particular region only.
在第四章，首先分析基片集成波导和矩形波导的阻抗特性及电磁场模式特点。
In Chapter 4, the impedance characteristics and electromagnetic field modes of SIW and rectangular waveguide are analyzed firstly.
磁粉、土体、水在电磁场中表现出不同的电磁和磁力特性。
The choice and basic property of geomechanical model test based on electromagnet force were introduced according to mixture and magnetic property of material.
求解了经典电磁场中二能级原子系统的密度矩阵演化方程，得到了系统状态的相干特性。
We have found out the equation of density matrix evolution of the two-level atomic system in the classic electromagnetism field. The Law of coherence of the state is obtained.
求解了经典电磁场中二能级原子系统的密度矩阵演化方程，得到了系统状态的相干特性。
We have found out the equation of density matrix evolution of the two-level atomic system in the classic electromagnetism field. The Law of coherence of the state is obtained.
应用推荐