新型手机天线的研究与设计

发布时间：2018-10-29 11:36

【摘要】：近年来,随着国内移动通讯产业的蓬勃发展,尤其是进入3G/4G时代以来,手机作为一种重要的移动通讯载体得到了快速发展。智能、超薄、宽屏、多网络覆盖成为现今衡量手机品质的重要标准。作为手机设备的重要组成部分—手机天线,为适应新时期下的市场需求,也必然会朝着小型化、多频化的方向发展。现阶段,手机设备的常用频段主要包括GSM900(890MHz-960MHz)、GSM 1800(1710MHz-1820 MHz)、DCS(1.71GHz-1.88GHz)、WiFi(2.400 GHz-2.484 GHz)、Bluetooth(2.4 GHz-2.5 GHz)、WLAN(5.150 GHz-5.250 GHz,5.725 GHz-5.825 GHz)。与此同时,LTE技术得益于其在数据高速传输方面的巨大优势,已经被选作国内第四代移动通讯系统的通讯频段。本文的研究目的是利用尽量小的空间设计出能够覆盖更多频段的手机天线。论文第一部分从手机天线的发展沿革入手,对国内外手机天线的历史、现状进行了介绍,并对未来手机天线的发展趋势进行了预测。第二部分主要就微带天线的基本工作原理以及各类辐射参量的意义进行了简要介绍。第三章则通过具体的实例介绍了现阶段实现手机天线小型化、多频化的常用方法。论文的第四部分和第五部分提出了两款新型手机天线,并分别对其进行了详细的分析和介绍。一种是IFA天线,该天线由原始IFA天线通过增加寄生单元和谐振单元来实现基本功能,通过空间折叠法减小天线体积。该天线体积较同类天线体积减小了近40%。一种是对原始单极子天线采取耦合、弯折等技术,设计了一款能够覆盖GSM、DCS、Bluetooth、WiFi、WLAN、LTE频段的手机天线,该手机天线体积较小。符合现阶段对手机天线的基本需求。
[Abstract]:In recent years, with the rapid development of domestic mobile communication industry, especially in the 3G/4G era, mobile phone as an important carrier of mobile communication has been rapidly developed. Intelligent, ultra-thin, wide-screen, multi-network coverage has become an important measure of mobile phone quality. As an important component of mobile phone equipment, mobile phone antenna is bound to develop towards miniaturization and multi-frequency in order to meet the market demand in the new era. At the present stage, the frequency bands commonly used in mobile devices mainly include GSM900 (890MHz-960MHz), GSM 1800 (1710MHz-1820 MHz), DCS (1.71GHz-1.88GHz), WiFi (2.400 GHz-2.484 GHz), Bluetooth (2.4 GHz-2.5 GHz),). WLAN (5.150 GHz-5.250 GHz,5.725 GHz-5.825 GHz).) At the same time, LTE technology has been selected as the communication frequency band of the fourth generation mobile communication system in China because of its great advantage in high-speed data transmission. The purpose of this paper is to design a mobile phone antenna which can cover more frequency bands by using as small space as possible. The first part of the thesis starts with the development of mobile phone antenna, introduces the history and present situation of mobile phone antenna at home and abroad, and forecasts the development trend of mobile phone antenna in the future. In the second part, the basic principle of microstrip antenna and the significance of various radiation parameters are introduced briefly. The third chapter introduces the common methods of realizing the antenna miniaturization and multi-frequency. In the fourth and fifth parts, two new cell phone antennas are proposed and analyzed in detail. One is the IFA antenna, which is realized by adding parasitic elements and resonant elements by adding the original IFA antenna, and reducing the antenna volume by space folding method. Compared with the same antenna volume, the volume of the antenna is reduced by nearly 40 parts. One is to design a mobile phone antenna which can cover the GSM,DCS,Bluetooth,WiFi,WLAN,LTE band by coupling and bending the original monopole antenna. The size of the mobile phone antenna is relatively small. Meet the basic needs of the mobile phone antenna at this stage.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN828.6

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