全金属边框的智能机天线技术研究
发布时间：2019-04-13 09:38
【摘要】：近些年,随着技术日新月异的变化和强劲用户需求的驱动,移动通信行业在全世界保持着其迅猛的发展势头。移动通信终端已经成为人与信息世界沟通的桥梁。由于人们在追求手机丰富功能的同时也更加关注手机的美感和质感,所以金属机身的手机也越来越受消费者的青睐。但是金属机身带来的美感和质感会以大大降低手机天线性能为代价,这也成为了制约天线结构创新的一个重要因素。鉴于以上原因,研设符合当前工业标准的完整金属边框的智能机天线是极其必要的。本文第一部分将全面阐述全金属边框手机天线的设计背景、现状和研发方向,并详细系统地给出了手机天线设计所需的基本知识,接着总结了在手机天线设计过程中所用到的几种基本天线模型以及天线阻抗匹配调节、天线小型化和谐振原理分析的常用方法。本文第二部分提出了两款基于匹配电路的全金属边框智能机天线设计方案。方案的主要特点是金属边框没有断点,并将匹配电路应用到了金属边框不断点智能机天线的设计中。所设计的两款智能机天线,其中一款其带宽能够覆盖824 960MHz和1710 2170 MHz(VSWR小于3),另一款带宽能够覆盖824 960 MHz和1710 2690 MHz。本文的第三部分提出了一款基于连续金属边框不断点的七频窄边框智能机天线设计方案。设计的核心是同时结合了可重构的环天线和寄生单极子天线两种天线的优点。该设计所占地板净空面积仅为945 mm2,设计的天线其带宽可以覆盖GSM850/900、DCS/PCS/UMTS2100和LTE2300/2500等频带。本文的第四部分提出了一款高隔离度的双环结构的MIMO天线。该天线主要采用了特征模正交技术和介质引入微扰促进模式融合的技术。该设计能完全覆盖GSM850/900频段,且在整个带宽范围内的隔离度都大于15dB,仿真效率在60%以上。本文设计了三款具有全金属边框结构的应用于智能机天线方案,从测试数据来看,完全符合现在智能机的基本标准。本文的最后是对全文的总结,分析了所设计的天线方案的合理性及学术工程价值,并给出了本文存在的不足及后续的改进工作。
[Abstract]:In recent years, with the rapid change of technology and the drive of strong user demand, the mobile communication industry has maintained its rapid development momentum in the world. Mobile communication terminal has become a bridge between human and information world. As people pursue the rich function of mobile phone and pay more attention to the beauty and texture of mobile phone, the metal fuselage phone is more and more popular with consumers. However, the aesthetic and texture of the metal fuselage will greatly reduce the antenna performance of mobile phone, which has also become an important factor restricting the antenna structure innovation. In view of the above reasons, it is very necessary to develop a full metal frame smart antenna in line with the current industrial standards. In the first part of this paper, the design background, current situation and research and development direction of all-metal frame mobile phone antenna will be fully described, and the basic knowledge required for mobile phone antenna design will be given in detail and systematically. Then several basic antenna models used in the design of mobile phone antenna are summarized as well as the commonly used methods of antenna impedance matching adjustment antenna miniaturization and resonance principle analysis. In the second part, two designs of all-metal frame smart machine antenna based on matching circuit are presented. The main feature of the scheme is that there are no breakpoints in the metal frame, and the matching circuit is applied to the antenna design of the metal frame continuous point smart machine. Two smart-phone antennas are designed, one of which has bandwidth coverage of 824 960MHz and 1710 and 2170 MHz (VSWR less than 3), and the other can cover 824-960MHz and 1710-1710-2690-MHz. In the third part of this paper, a seven-band narrow frame smart machine antenna based on continuous metal frame points is proposed. The core of the design is to combine the advantages of both the reconfigurable loop antenna and the parasitic monopole antenna. The design covers only 945 mm2, antenna whose bandwidth can cover frequency bands such as GSM850/900,DCS/PCS/UMTS2100 and LTE2300/2500. In the fourth part of this paper, a double-loop MIMO antenna with high isolation is proposed. The antenna mainly adopts the characteristic mode orthogonality technique and the dielectric introduction perturbation to promote the mode fusion technology. The design can cover the GSM850/900 band completely, and the isolation degree is more than 15 dB in the whole bandwidth range, and the simulation efficiency is more than 60%. In this paper, three kinds of antenna schemes with all-metal frame structure are designed. From the test data, they accord with the basic standard of smart machine. At the end of this paper, the rationality and academic engineering value of the designed antenna scheme are analyzed, and the shortcomings of this paper and the subsequent improvement work are given.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN828.6
本文编号：2457447
[Abstract]:In recent years, with the rapid change of technology and the drive of strong user demand, the mobile communication industry has maintained its rapid development momentum in the world. Mobile communication terminal has become a bridge between human and information world. As people pursue the rich function of mobile phone and pay more attention to the beauty and texture of mobile phone, the metal fuselage phone is more and more popular with consumers. However, the aesthetic and texture of the metal fuselage will greatly reduce the antenna performance of mobile phone, which has also become an important factor restricting the antenna structure innovation. In view of the above reasons, it is very necessary to develop a full metal frame smart antenna in line with the current industrial standards. In the first part of this paper, the design background, current situation and research and development direction of all-metal frame mobile phone antenna will be fully described, and the basic knowledge required for mobile phone antenna design will be given in detail and systematically. Then several basic antenna models used in the design of mobile phone antenna are summarized as well as the commonly used methods of antenna impedance matching adjustment antenna miniaturization and resonance principle analysis. In the second part, two designs of all-metal frame smart machine antenna based on matching circuit are presented. The main feature of the scheme is that there are no breakpoints in the metal frame, and the matching circuit is applied to the antenna design of the metal frame continuous point smart machine. Two smart-phone antennas are designed, one of which has bandwidth coverage of 824 960MHz and 1710 and 2170 MHz (VSWR less than 3), and the other can cover 824-960MHz and 1710-1710-2690-MHz. In the third part of this paper, a seven-band narrow frame smart machine antenna based on continuous metal frame points is proposed. The core of the design is to combine the advantages of both the reconfigurable loop antenna and the parasitic monopole antenna. The design covers only 945 mm2, antenna whose bandwidth can cover frequency bands such as GSM850/900,DCS/PCS/UMTS2100 and LTE2300/2500. In the fourth part of this paper, a double-loop MIMO antenna with high isolation is proposed. The antenna mainly adopts the characteristic mode orthogonality technique and the dielectric introduction perturbation to promote the mode fusion technology. The design can cover the GSM850/900 band completely, and the isolation degree is more than 15 dB in the whole bandwidth range, and the simulation efficiency is more than 60%. In this paper, three kinds of antenna schemes with all-metal frame structure are designed. From the test data, they accord with the basic standard of smart machine. At the end of this paper, the rationality and academic engineering value of the designed antenna scheme are analyzed, and the shortcomings of this paper and the subsequent improvement work are given.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN828.6
【参考文献】
相关硕士学位论文 前1条
1 强云飞;应用于LTE智能机的窄边框天线技术研究[D];电子科技大学;2015年
，本文编号：2457447
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