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U型槽的贴片天线设计

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U型槽的贴片天线设计(论文11000字)
摘要:贴片天线因为其体积小、重量轻以及剖面低等诸多优点使其在无线通信系统之中的地位越来越高,应用也越来越广泛。U型槽贴片天线有着普通贴片天线没有的优势——优秀的阻抗带宽。在实际应用中,系统的性能和是否能够方便地扩展恰恰决定于天线的带宽天线的带宽,因此,本文重点研究的就是U型槽的贴片天线的设计技术,目标是研究如何有效地提高U型槽贴片天线的带宽。
本文前两章主要是U型槽贴片天线的发展以及相关发展和研究的动态,还有一些关于贴片天线的相关性能参数、基本结构、辐射机理以及天线的设计流程,以及HFSS软件的简介,这些内容都是后面的U型槽天线的研究的理论基础。
第三章和第四章是本文的重点内容,详细讲述了U型槽贴片天线的设计过程以及对结果的分析。首先提出了传统的U型槽结构;其次在此基础上又提出了双U型槽的结构,改进了单U型槽天线的性能;最后提出了一种使用L型探针馈电的U型槽的天线结构。并分别对这三种结构进行仿真和对比分析,分析它们的辐射方向图和S11图,其中后两种都分别实现了很好的阻抗匹配。具有一定的实际引用价值。
最后总结了本文的所有研究内容,并且分析了当下以及未来微带天线的发展。

[资料来源:http://www.doc163.com]

关键词:贴片天线 U型槽 双U型槽 L型探针 

Design of U-slot Patch Antenna
Abstract:Because of its small size, light weight and low profile, the patch antenna has been widely used in wireless communication systems. U-slot patch antenna has a common patch antenna does not have the advantage ---- excellent impedance bandwidth. In practice, the bandwidth of the antenna has a very important effect on the performance and scalability of the system. Therefore, this paper focuses on the design technology of the U-slot patch antenna. The goal is to study how to effectively improve the bandwidth of the U-slot patch antenna.
The first two chapters of this paper are mainly the development of U-slot patch antenna and related development and research trends, there are some on the patch antenna related performance parameters, the basic structure, radiation mechanism and antenna design process. These are the theoretical basis of the study of the U-slot antenna behind.
The third chapter and the fourth chapter are the key contents of this paper, and the design process of U-slot patch antenna and the analysis of the result are described in detail. Firstly, the traditional U-slot structure is proposed. Secondly, the structure of the double U- slot is proposed, and the performance of the single U-slot antenna is improved. Finally, a U-shaped groove with L-type probe is proposed. The simulation and comparison of these three structures are carried out, and their radiation patterns and S11 graphs are analyzed. The latter two achieve good impedance matching respectively. Has a certain actual reference value. [来源:http://Doc163.com]
Finally, a summary and prospect of all the research contents of this paper are made.
Key words: Patch antenna, U-slot, double U-slot, L-probe feed
 

[资料来源:http://doc163.com]

U型槽的贴片天线设计


目录
第一章 绪论    1
1.1    研究背景及意义    1
1.2    国内外研究现状    1
1.3    本课题研究内容    2
第二章贴片天线的基本理论    3
2.1贴片天线的基本性能参数    3
2.2贴片天线的辐射机理    4
2.3贴片天线的馈电方式以及基本模型    5
2.4一般微带天线的设计流程    6
2.5本章小结    6
第三章U型槽的贴片天线设计    8
3.1 传统U型槽贴片天线    8
3.1.1天线结构    8
3.1.2仿真与分析    9
3.2 双对称U型槽贴片天线    11
3.2.1天线结构    11

[来源:http://www.doc163.com]

3.2.2仿真与分析    12
3.3 带L型探针的U型槽贴片天线    15
3.1.1 天线结构    15
3.2.2 仿真与分析    16
3.4 三种结构的对比    19
3.5本章小结    19
第四章 工作总结    20
参考文献    21
致谢    22 [来源:http://www.doc163.com]

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