波导

Within this context, four specific areas are addressed:(1) By means of finite integration technique, a new kind of the first order partial difference equation is derived from the original disperse transmission line equation of the uniform waveguide's. As it is the kind of one dimension Dirichlet's boundary problem, it is convenient for us to solve this equation from the leapfrog scheme. Because computation is carried out in one dimension, both high calculation efficiency and precision have been obtained in this method. Meanwhile, this method provide us a different selection to simulate the transient response of waveguide with non-simplical, for examples cylinder and elliptic waveguide, and avoid solving the second order equation, or using finite difference time domain to simulate a three dimension problem, sometimes the latter precision is not satisfied with the need, or low efficiency.

在这一研究内容下，主要研究四个方面的问题：(1)在完成金属波导传输线方程时域形式的基础之上，应用有限积分技术，把波导特征模式的色散传输线方程，化简为一组新的一阶偏微分方程组，该边值问题属一维Dirichlet边值问题，从而便于用蛙跳格式求解，由于是在一维中计算，该方法具有很高计算效率和精度，从而避免了以往为得到金属波导中特征模的时域响应特性，须要求解二阶方程，或用时域有限差分方法求解三维问题的方法，对于后者来说，计算有时是不准确的，或是很耗时的例如计算诸如圆波导、椭圆波导等其它复杂形状的波导。

Some conclusions are inducted through the study: first, grid nudging with the rountine observed data in the MM5 simulation of atmospheric duct affects less over the sea than the land;Second,how much of sigma levels have great influence on simulation of atmospheric duct and the MM5 simulation with more sigma levels depicting the atmospheric ducts are reasonable; Last, multiple nests are allowed on a given level of nesting domain in the MM5 model.

通过研究得到了以下结论：(1)利用常规资料进行格点同化对海上大气波导影响较小，对陆地影响较大；(2)垂直分层对大气波导特征参数影响明显，层数较多描述大气波导比较合适；(3)对于海上大气波导，细网格刻画大气波导特征参数比较细致，但粗网格的模拟已经足够进行大气波导分析。

Both the offset and tilted fedcoupling-slot array between the curved guide and sectoral guides and longitudinal radiating-slot array on sectoral guide are analyzed by moment method, taking into account of the effects of finite wall thickness and mutual coupling between the slots, employing the acceleration algorithms to accelerate the summation of slowly convergent series of the self-admittance of the waveguide-slot aperture, and introducing the surface Fock functions to simplify the computation of the self-and mutual coupling of the slots on the surface of cylinder.

采用矩量法分别分析弯波导与扇面波导间偏置倾斜馈电耦合缝阵和扇面波导轴向辐射缝面阵，其中计及有限波导壁厚及缝间互耦的影响，运用级数加速算法对波导中自导纳矩阵元级数进行加速处理，并引入表面Fock函数简化圆柱面上缝口面的自耦和互耦的计算。

Two ends of s shape bent waveguide respectively coaxially link perpendicular waveguide input and output section.

直波导输入输出段、S形弯曲坡面结构、长方体结构和平面光传输波导位于基版的表面，S形弯曲波导位于S形弯曲坡面结构的表面，直波导输入输出段位于长方体结构的表面，基版上的直波导输入输出段和位于长方体结构上的直波导输入输出段通过S形弯曲波导连接，S形弯曲波导的两端分别与直波导输入输出段同轴相切相接。

A temperature sensor in front of the electromagnetic field, the said without interference from the methods include: the temperature sensor is made on the characteristics of semiconductor material pre-selected wavelengths of light transmission function as the temperature sensor, west DingZheng prismatically configuration sensor, in order to provide a direct path through the reflective temperature sensor said, Another kiss for primary sources said wavelength, Choose 12.449 coupled with optical fiber sensor, the radiating waveguide song, Another kiss can detect radiation intensity detector change along, through direct transmission path as temperature sensor reflective function, Optical fiber sensor probe second waveguide coupling, And the radiation temperature sensing along the road, directly from the first glance through optical waveguide fiber-optic sensors represent temperature, pulsing said waveguide detection radiation intensity of optical fiber sensor, forwarding through said waveguide as the second pen function temperature.

一种温度传感当着电磁场无干扰电磁场说，该方法包括：从编造温度传感器具有半导体材料的特点进行预选波长的光传输功能作为温度传感器、西丁正prismatically配置传感器，以提供一个直接透过反光路说温度传感器；亲另方面说预选波长为辐射源；选择 12.449偶合传感器的辐射源，以光纤波导首；亲另方面探测器能够探测辐射强度的变化直接传送沿说，通过传感器作为道路反光函数温度；光学传感器耦合的光纤探测器第二波导；与由导演辐射温度传感沿线道路反光直接从第一说，通过光纤波导表示温度光纤传感器脉动说波导二、检测辐射强度转发的光纤传感器，通过说波导作为第二笔功能温度。

A radiant energy path means comprising a first optical fiber waveguide means and a second optical fiber waveguide means; sensing means prismatically configurated so as to provide a direct reflective path from said first waveguide means, through said sensing means, to said second waveguide means, said sensing means being fabricated from material which absorbs a portion of a monochromatic radiant energy transmitted along said direct reflective path through said sensing means as a function of temperature; a monochromatic radiant energy source means optically coupled to said first optical fiber waveguide means, thereby introducing said monochromatic radiant energy into said first optical fiber waveguide means; and detecting means optically coupled to said second optical fiber waveguide means for detecting the intensity of the monochromatic radiant energy transmitted along said direct reflective path through said sensing means, the detecting means correlating the intensity of the transmitted monochromatic radiant energy with the temperature of the sensing means.

温度传感器组成一个联合：辐射能走了一首手段包括光纤波导手段和光纤波导第二手段；硒干旱prismatically手段配置以提供直接从反光路波导首次表示，次传感手段粗糙说，第二说波导手段飒传感手段伪造身份证从物质吸收了部分单色辐射能直接传送沿线说重 flective路径通过说温度传感功能为手段；一单色辐射能来源地说，就是先光光纤耦合波导手段次 ereby介绍说，首先说成单色辐射能光纤波导手段；一丁光学检测手段波导光纤耦合说二是加大检测手段的单色辐射恩顺沿说传染途径通过直接反光说传感手段，次五是加大检测手段的传播相关单色辐射能与温度传感手段。

The characteristics of the three main parts of mono-pulse slotantennas——longitudinal radiating slot, center-inclined slot and magic T using couplingslot, are analyzed. Also the influence of the design parameters, such as the length and width of the slot etc., are analyzed. The engineering curves of design are given, and some beneficial conclusions are gained too. These also give powerful supports for the design of slot antennas.

针对毫米波单脉冲波导缝隙天线的三个主要组成部分——波导宽边辐射纵缝、波导宽边中心斜缝和宽边缝隙耦合魔T的特性及其各项设计参数(如缝隙长度、宽度、半高波导、全高波导等)对性能的影响进行了较为全面、详细的分析，给出了相应的工程设计曲线，得到了一些有益的结论，为高性能波导缝隙阵列天线的设计提供了有力的参考。

Narrow wall and broad wall apperture coupler. Experiments have been made to test them. Other types of discontinuity we have studied include: coax and SIW transformer; SIWs\' coupling on different layers; branch coupler based on SIW; post inside SIW; the H-plane discontinuity ; bend structures; cross structures; \'Y\' branch of SIW etc.

本文所研究的其它不连续性结构还包括：同轴波导与SIW的转换接头；不同层间SIW的转换；基于SIW的分支定向耦合器；基片集成波导中的感性金属杆；基片集成波导的H面不连续性结构；各类拐角结构；波导交叉结构；波导'Y'分支结构。

Through the analysis, we also find that the change of defect waveguide edge dielectric rod radius and wave guide\'s width are advantageous for enhancing the coupling efficiency of waveguide with the resonant cavity.3. The coupling relation of between the resonant cavity and waveguide has been analyzed, and according to the coupled mode theory, transmission coefficient expression of every port has been derived.

通过分析也发现适当改变缺陷波导边缘介质柱的半径、缺陷介质柱与波导间介质柱的半径及波导的宽度，都有利于提高波导与谐振腔之间的耦合效率。3、从理论上分析了谐振腔与波导间的耦合关系，根据耦合模理论导出了各端口传输系数的表达式。

Four-port network with partial height cylindrical objects in rectangular waveguide junctions (i.e., Four-port rectangular junctions), multiple-stepped rectangular waveguide bend and T-septum rectangular waveguide junction are modeled by full-wave mode matching method in order to quickly design the combline cross-coupled filter, corner waveguide diplexer, generalized chebysheve waveguide filters and diplexers with high efficiency in this paper.

本文将它运用于矩形波导接头中带通用圆柱杆的四口网络、多阶梯矩形波导弯头和T—septum矩形波导接头的全波建模，有助于快速高效设计梳状广义切比雪夫滤波器、拐弯波导双工器、广义切比雪夫波导滤波器和双工器。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。