摘要进入二十一世纪来,无线电通信技术飞速发展,全世界的人们正逐渐被一张巨大的 通信网络所连接,可以实现无空间、无时间限制的深层次通讯。即所说的“任何时间、任 何地点的无线电通信”。其中,天线设备作为无线电通讯系统的“眼睛和耳朵”,更是不可 或缺的组成部分。但是,传统天线都是以欧式几何为设计基础而进行研制的,其自身突 破不了欧式几何的局限性,存在诸多的技术瓶颈。如尺寸问题,频带宽度问题,等等。 然而,在新一代天线的设计研制中,小型化、多频带是必须考虑的问题。诸多研究表明, 将分形几何替代欧式几何运用到天线结构的设计当中,可以设计出比传统天线体积更小、 频带更宽的新型天线。本论文将以分形结构为理论基础,设计仿真一款新型分形天线。77735
毕业论文关键词 天线,分形结构,HFSS,超宽带
毕 业 设 计 说 明 书 外 文 摘 要
Title Research on the application of fractal structure in antenna
Abstract Entered in twenty-first Century, with the rapid development of radio communication technology, people around the world are gradually being a huge network of communication links, can achieve no space, no time limit of the deep communication。 Radio communication at any time and at any place"。 Among them, antenna equipment, as the "eyes and ears" of the radio communication system, is an indispensable part of the system。 However, the traditional antenna is developed based on Euclidean geometry, which can not break the limitations of the Euclidean geometry, and there are many technical bottlenecks。 Such as the size of the problem, the frequency band width problem, etc。。 However, in the design and development of the new generation antenna, miniaturization and multi band are the problems that must be considered。 Many researches have indicated that the fractal geometry can be used in the design of antenna structure, which can be used to design a new type of antenna with smaller size and wider frequency band。 This paper will be based on the fractal structure theory, design and Simulation of a new fractal antenna。
Keywords antenna ,fractal structure , HFSS , Ultra wide band
本科毕业设计说明书( 论文) 第 I 页 共 II 页
目 次
1 引言 1
1。 1 研究背景及意义 1
1。 3 高频电磁仿真软件 2
1。 4 本论文的研究内容及安排 3
2 天线的理论基础 4
2。 1 天线的基本原理 4
2。 2 天线的基本参数 6
3 分形结构及分形天线 13
3。 1 分形的由来 13
3。 2 分形的定义 13
3。 3 分形的特点 14