超宽带天线设计(论文14000字)
摘要：当今世界随着通信技术的飞速发展，超宽带通信技术展现出了比其他通信技术更强的优势，在传输速率上，带宽宽度上，抗干扰性上，分辨率上，以及电能消耗上有着充足的优势，从而使超宽带通信技术在军事上和居民生活中有着无比广泛的应用，超宽带天线技术又是超宽带通信技术的核心技术，有着十分重要的作用。
本文主要对超宽带通信技术以及超宽带天线做出基本阐述，对超宽带天线的目前发展状况，国内外研究情况做出阐述，接着对超宽带天线的基本原理以及重要相关参数做出解释，如输入阻抗，回波损耗，工作带宽，电压驻波比，远场方向图、方向性和增益、辐射效率、天线极化和群时延等这些重要参数做出解释，然后对超宽带天线的研究方法进行分析，本文要研究的重点还是陷波超宽带天线的设计，所以，最后会针对陷波的超宽带做出阐述。
本文首先制作一个典型的单极子天线，采用共面导波结构，在很多情况下，为了消除干扰，有些频段的信号需要排除，所以第二个天线进行开槽和来实现陷波的功能。本文所使用的是介质常数为4.4的FR4基板，在分析中给出相关的驻波比图以及方向图并做出文字分析。
关键字：超宽带天线，单极子结构，陷波功能
UWB Antenna Design
Abstract：In today's world with the rapid development of communication technology, the ultra wideband communication technology showed stronger than other advantages, on the transmission rate and bandwidth on the width, anti-interference, resolution, and power consumption has plenty of advantages, so that the uwb communication technology in military and residents life has a very wide application, ultra-wideband antenna technology is the core technology of ultra-wideband communication technology, has a very important role.
This article mainly discusses the uwb communication technology and the ultra broadband antenna, make basic on the current status of development of ultra-wideband antenna research situation at home and abroad to make, and then to ultra broadband antenna explain the basic principle and important parameters, such as input impedance and return loss, bandwidth, voltage standing wave ratio, the far field pattern and directivity and gain, radiation efficiency, antenna polarization and group delay explain these important parameters, such as, and then analyzes the research methods of ultra-wideband antenna, this paper will research the key or trap design of ultra-wideband antenna, so eventually to make a paper on trap ultra broadband.
In this paper, a typical monopole antenna is firstly made and coplanar guided wave structure is adopted. In many cases, in order to eliminate interference, signals in some frequency bands need to be eliminated, and then the second antenna is used to make grooves and add branches to realize the function of notch wave.In this paper, the FR4 substrate with a medium constant of 4.4 is used. In the analysis, the relevant standing wave ratio diagram and direction diagram are given and the text analysis is made
Keywords: uwb antenna, single substructure, notch function
目录
第一章 绪论 1
1.1 超宽带天线研究背景及其意义 1
1.2 超宽带天线的特点 1
1.3 超宽带天线的发展 2
1.4 超宽带天线国内外研究现状 2
1.5 论文研究内容及其工作安排 3
第二章 天线理论基础 4
2.1 天线相关参数介绍 4
2.2 平面单极子天线 6
2.3超宽带天线的分析方法 7
第三章 超宽带天线的设计 8
3.1 超宽带天线的实现方法 8
3.2超宽带天线的设计 8
3.3天线实测分析 11
第四章 陷波天线的设计 14
4.1超宽带陷波功能的实现 14
4.2 陷波功能的天线设计 14
4.3 天线实测 19
第五章 结论 22
参考文献 23
致谢 24
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