In many cases vehicles , ships and aircrafts can be seen as arbitrary faceted conducting bodies . in this paper the characteristic of several wire antennas attached to an arbitrary faceted conducting body and the infection between them are analyzed 在很多情况下，车辆、舰艇、飞机、卫星等物体都可以近似看成金属多面体，因此，本文主要研究金属多面体上多根线天线的特性，分析他们之间的相互影响。
So the currents on the antennas and body are got that can make us get the input impendence and radiation pattern easily . also the suited basis and weighting functions choices are researched in this paper including the case that the antennas are mounted near an edge or a vertex 在此过程中作者研究并给出了适合本电子科技大学硕士论文一问题的基函数和权函数，包括线天线靠近金属体的边缘和顶角的特殊情况。
The variational theory in electromagnetics and its application in computing the characteristic impedance of conformal coaxial transmission lines are presented in this thesis . input impedance of wire antennas is also computed with a hybrid method of variational principles and the finite - difference time - domain method 本文主要研究了电磁变分理论及其在共形同轴传输线特性阻抗的求解和与时域有限差分法相结合求线天线输入阻抗等方面的应用。
Wire antennas are still very popular on vehicles , ships and aircrafts . they are easily to be interference sources and sensitive bodies . in our calculation we must take account of the mutual coupling between wire antennas when they are very close 线天线在移动通信系统中被广泛地应用，它作为许多机载、舰载、卫星、通信电子设备中电磁能量的发射和接收端口，最有可能成为辐射干扰的干扰源和敏感体，特别是当天线靠得很近的时候，必须考虑相互之间的互耦。
Photonic crystals ’ application to the microwave field is mainly studied by applying parallel modified locally conformal fdtd method in this paper , including the study of radiation characters when wire antenna is reflected by the pbg reflecting board , the study of round pbg filter using locally conformal fdtd method 本文利用并行共形fdtd方法研究了光子晶体在微波领域的应用，包括线天线在pbg反射面板上的辐射特性，用局部共形网格技术研究圆形pbg滤波器。
In this thesis , our work is focused on analyzing the effects of mutual coupling between elements of the thin dipole antenna array . the effects of mutual coupling on the antennas pattern synthesis and the amplitude - phase consistency of the input impedance of the uniformly - space liner array are presented . a new method that used the mutual coupling to synthesize the pattern is been given 本文就是以此为出发点,将半波长细线对称振子线天线阵作为研究对象,以分析天线阵列的互耦影响为核心,讨论互耦对几种方向图综合技术的影响,并从两种不同的角度提出了对阵元互耦的校正方法。
Using the phase conjugation mixer the compact wire antenna with two isolated ports presented in chapter 2 is simulated , and the results show that the antenna can follow the incoming signal with the main beam and has 4 - 8db gain improve against the standard monopole in the incoming signal direction 对本文第二章提出的两馈电端口的高隔离度线天线的仿真表明，利用相位共轭电子科技大学博士论文混频器，天线系统能以主波束在0 ’一360 ’的范围内跟踪入射波方向，具有一定的方向回溯能力。
And then the radiation problems of various kinds of wire antennas ( i . e . straight wire antenna , helix wire antenna , koch fractal antenna , etc . ) mounted on the complex - shaped pec platform are solved based on the efie - mom and junction basis function . finally the scattering problems of complex - shaped electrically - large 2d pec targets are solved based on the hybrid method of ipo and mom , which can be easily expanded to the 3 - d condition 本文使用积分方程类方法，对一些简单和复杂金属载体上的线天线以及金属目标本身的电磁特性进行了研究，完成了有关数值方法的理论建模和程序实现，所涉及的方法主要包括基于电场积分方程的矩量法( efie - mom )和迭代物理光学法( ipo ) 。
The thesis focus on the numerical analytical method of curved broadband wire antennas . first , the paper introduced the development of broadband antennas , the common measures to broaden antennas " bandwidth and the study on curved antennas . second , the generalized halen integral equation ( mei ' s equation ) was derived based on the three basic equations of wire antennas by two means and its numerical solution method was discussed 本文就曲线宽频带线天线的数值分析方法展开研究，首先介绍了宽频带天线的发展，实现天线宽频带的常用方法和曲线天线的研究现状，然后在直线加载天线满足的方程的基础上用两种方法推导了曲线天线满足的推广的海伦积分方程( mei ’ s方程) ，讨论了不同基函数下方程的数值解法。
When we analyze the characteristic of several wire antennas attached to an arbitrary faceted conducting body we must divide it into two cases . one is that the conducting body is electrically small , the mutual coupling and infection between the antennas and conducting body are very obvious . so we must model them precisely and the shape of the conducting body , the length and location of the antennas etc . are must be tak en into account 金属多面体上有多根线天线分两种情况，一是金属多面体是电小尺寸，此时，天线和金属多面体都是属于精细结构，天线之间的互耦以及金属多面体对天线影响都非常明显，所以金属多面体的形状以及天线的长短、位置等对计算的结果影响非常大，因此必须精确建模，把所有的因素考虑在内。
