摘要目前研究双频微带天线的文献很多,通常可以通过三种方法来实现双频:(1)多贴片(2)槽加载(3)集总元件加载。多贴片和集总元件加载都会使天线的结构变得复杂,而槽加载作为一种简单的加载方式,可以在单层微带天线上实现双频,制作生产相对简单,且容易与微波电路集成,常见的槽有U型槽,L型槽等。本论文介绍了微带天线的基本原理及一般微带天线的分析方法,得到了一种双频微带天线的设计方法。其特点是结构简单,容易加工,成本低廉。使用HFSS电磁仿真软件,设计出了符合工程要求的双频微带天线,对所设计的天线进行仿真研究。论文还对天线各主要参数对天线的性能影响做了分析。而后,根据双频天线的设计思想,在双频天线模型的基础之上做了改进。63590
毕业论文关键词 微带天线,双频,HFSS
毕业设计说明书(论文)外文摘要
Title The Analysis And Design Of Dual-band Micro-strip Antennas
Abstract Recently,many papers on dual-band micro-strip antennas have been proposed,there are three methods to achieve dual-band operation in general,(1)multi—patch,(2)slots,(3)lumped elements.Multi-patch and lumped elements will make antennas complicated,whereas to add slots is a simple way to operate in dual-band in single layer patch,and it is very easy to integrate with microwave circuits,L and U shape slots are very common.The radiation theory and analysis method of micro-strip antenna are presented in the first part of this thesis.A novel design of dual-band micro-strip antenna is presented.This kind of antenna has a simple structure and easy to process and have a low cost.This paper uses HFSS to simulate the dual-band antenna.This paper analysis the effect of the parameters in detail.According to the design ideas of dual-band antenna,the improvements have been made for this dual-band micro-strip antenna model.
Keywords micro-strip antenna,dual-band,HFSS
目 次
1 引言 1
1.1 微带天线的背景与应用 1
1.1.1 背景 1
1.1.2 分类 1
1.1.3 特点 2
1.1.4 应用 2
1.2 微带天线的发展现状 3
1.2.1 微带天线的小型化技术 3
1.2.2 微带天线的宽频技术 3
1.2.3 微带天线的圆极化技术 4
1.2.4 微带天线的多频技术 5
1.3 研究内容和主要工作 6
2 微带天线基本理论 6
2.1 微带天线的定义 6
2.2 微带天线的辐射机理 7
2.3 微带天线的理论分析方法 9
2.3.1 传输线模型理论 9
2.3.2 空腔模型理论 10
2.3.3 全波分析理论 11
2.4 微带天线的数值分析 12
2.5 微带天线的基本参数 13
2.5.1 微带天线的电路参数 13
2.5.2 微带天线的辐射参数