433MHz天线小型化设计
433MHz天线小型化设计(论文11000字)
摘要:进入21世纪,由于移动电话的发展,平均每人都会携带一个或以上的天线出门(移动电话就有多种天线,例如GPS天线)。随着无线通信系统在我们的生活中扮演越来越重要的脚色,天线数量急剧上升的这一趋势不会停止。因此有必要去研究不同形式的天线。这篇文章则是研究433MHz天线的小型化问题。在433MHz天线的设计中,我们选用倒F天线。这种天线正越来越多的运用于手机市场。它谐振于四分之一波长(从而减小了在手机上所需的空间),同时也具有较好的电磁波吸收比值。我们通过调整馈电点和短路针的位置减小天线的S11参数从而使得天线匹配于433MHz。这种天线可应用于小型的无线设备,例如无线接收器。
关键词:平面倒F天线;433兆赫兹;小型化
Design of Miniaturized 433MHz Antenna
Abstract: By the early 21st century, thanks in large part to mobile phones, the average person now carries one or more antennas on them wherever they go (cell phones can have multiple antennas, if GPS is used, for instance). This significant rate of growth is not likely to slow, as wireless communication systems become a larger part of everyday life. Thus, it is significant to do research on different types of antenna.This paper mainly does research on the miniaturization of 433MHz antenna.In the design of 433MHz antenna,we used Planar inverted-F antenna which is increasingly used in the mobile phone market. The antenna is resonant at a quarter-wavelength (thus reducing the required space needed on the phone), and also typically has good SAR properties. Then,we change the position of the feed and shorted pin to reduce S11 to make the antenna match to 433MHz. This antenna is made for small wireless device,such as wireless receivers. [版权所有:http://DOC163.com]
Key words:Planar inverted-F antenna;433MHz;miniaturization
目 录
第一章 绪论 2
1.1 课题研究背景和意义 2
1.2 国内外研究现状 2
1.3 课题的主要工作及章节安排 3
第二章 天线基本参数及微带贴片天线 4
2.1 天线基本参数 4
2.2 微带贴片天线 6
第三章 微带天线小型化及平面倒F(PIFA)天线 8
3.1 微带天线小型化 8
3.2 平面倒F(PIFA)天线 9
第四章 电磁仿真软件介绍 13
4.1 FEKO软件简介 13
第五章 433MHZ小型化天线设计及仿真 15
5.1 433MHZ小型化天线设计 15
5.2 433MHZ小型化天线仿真 15
第六章 结论与讨论 25
[资料来源:Doc163.com]
参考文献: 26
致谢 27 [资料来源:Doc163.com]