用于手机的多频段天线设计

用于手机的多频段天线设计(论文13000字)
摘要：近年，随着无线通讯技术的迅猛发展，特别是WiMAX, LTE,WLAN等技术的发展，而天线作为无线通信系统的重要组成部分，双频以及多频天线的研究，成为当下的一个热点。本文提出了一种简单紧凑的薄型多宽带平面天线，用于LTE / GSM / UMTS和WLAN / WiMAX手机应用。所提出的天线覆盖多个宽频带，包括LTE700，GSM850，GSM900，DCS / PCS / UMTS，WLAN / WiMAX，LTE2300 / 2500和LTE42 / 43/46。它由薄的电介质基板的一侧上的C形和U形单极组成，其耦合到另一侧上的F形条带而没有任何集总元件。另外天线的设计相对简单，比较适合工程应用，方便在实际操作中调整频带频率，以用于对应的商业无线通信系统。
关键词：手机天线；平面天线；单极天线

Multi-band antenna design for mobile phones
Abstract：In recent years, with the rapid development of wireless communication technology, especially the development of WiMAX, LTE, WLAN and other technologies, and the antenna as an important part of the wireless communication system, the research of dual-frequency and multi-frequency antenna has become a hot spot. This paper presents a simple and compact thin multi-bandwidth planar antenna for LTE / GSM / UMTS and WLAN / WiMAX mobile applications. The proposed antenna covers multiple broadband bands, including LTE700, GSM850, GSM900, DCS/PCS/UMTS, WLAN/WiMAX, LTE2300/2500 and LTE42/43/46. It consists of a C-shaped and U-shaped monopole on one side of a thin dielectric substrate that is coupled to an F-shaped strip on the other side without any lumped elements. In addition, the antenna design is relatively simple and compared. It is suitable for engineering applications, and it is convenient to adjust the frequency band in actual operation for the corresponding commercial wireless communication system.
Key words：Cell phone antenna； plane antenna,；monopole antenna

目 录
一、 绪论    5
1.1目的和意义    5
1.2国内外研究现状    5
二、 相关知识内容    7
2.1微带天线的相关理论介绍    7
2.1.1微带天线的定义和结构    7
2.1.2微带天线常用的分析方法    8
2.1.3微带天线常用的馈电方式    10
2.1.4微带天线的小型化技术    13
2.1.5微带天线多频化技术    14
2.2多频带天线    15
2.3 手机天线模型    16
2.3.1单极子天线    16
2.3.2 PIFA天线    18
三、 分析与设计    19
四、 结论    28
参考文献    29
致谢    30