全金屬邊框的智能機(jī)天線技術(shù)研究
發(fā)布時(shí)間：2019-04-13 09:38
【摘要】：近些年,隨著技術(shù)日新月異的變化和強(qiáng)勁用戶需求的驅(qū)動(dòng),移動(dòng)通信行業(yè)在全世界保持著其迅猛的發(fā)展勢(shì)頭。移動(dòng)通信終端已經(jīng)成為人與信息世界溝通的橋梁。由于人們?cè)谧非笫謾C(jī)豐富功能的同時(shí)也更加關(guān)注手機(jī)的美感和質(zhì)感,所以金屬機(jī)身的手機(jī)也越來(lái)越受消費(fèi)者的青睞。但是金屬機(jī)身帶來(lái)的美感和質(zhì)感會(huì)以大大降低手機(jī)天線性能為代價(jià),這也成為了制約天線結(jié)構(gòu)創(chuàng)新的一個(gè)重要因素。鑒于以上原因,研設(shè)符合當(dāng)前工業(yè)標(biāo)準(zhǔn)的完整金屬邊框的智能機(jī)天線是極其必要的。本文第一部分將全面闡述全金屬邊框手機(jī)天線的設(shè)計(jì)背景、現(xiàn)狀和研發(fā)方向,并詳細(xì)系統(tǒng)地給出了手機(jī)天線設(shè)計(jì)所需的基本知識(shí),接著總結(jié)了在手機(jī)天線設(shè)計(jì)過(guò)程中所用到的幾種基本天線模型以及天線阻抗匹配調(diào)節(jié)、天線小型化和諧振原理分析的常用方法。本文第二部分提出了兩款基于匹配電路的全金屬邊框智能機(jī)天線設(shè)計(jì)方案。方案的主要特點(diǎn)是金屬邊框沒(méi)有斷點(diǎn),并將匹配電路應(yīng)用到了金屬邊框不斷點(diǎn)智能機(jī)天線的設(shè)計(jì)中。所設(shè)計(jì)的兩款智能機(jī)天線,其中一款其帶寬能夠覆蓋824 960MHz和1710 2170 MHz(VSWR小于3),另一款帶寬能夠覆蓋824 960 MHz和1710 2690 MHz。本文的第三部分提出了一款基于連續(xù)金屬邊框不斷點(diǎn)的七頻窄邊框智能機(jī)天線設(shè)計(jì)方案。設(shè)計(jì)的核心是同時(shí)結(jié)合了可重構(gòu)的環(huán)天線和寄生單極子天線兩種天線的優(yōu)點(diǎn)。該設(shè)計(jì)所占地板凈空面積僅為945 mm2,設(shè)計(jì)的天線其帶寬可以覆蓋GSM850/900、DCS/PCS/UMTS2100和LTE2300/2500等頻帶。本文的第四部分提出了一款高隔離度的雙環(huán)結(jié)構(gòu)的MIMO天線。該天線主要采用了特征模正交技術(shù)和介質(zhì)引入微擾促進(jìn)模式融合的技術(shù)。該設(shè)計(jì)能完全覆蓋GSM850/900頻段,且在整個(gè)帶寬范圍內(nèi)的隔離度都大于15dB,仿真效率在60%以上。本文設(shè)計(jì)了三款具有全金屬邊框結(jié)構(gòu)的應(yīng)用于智能機(jī)天線方案,從測(cè)試數(shù)據(jù)來(lái)看,完全符合現(xiàn)在智能機(jī)的基本標(biāo)準(zhǔn)。本文的最后是對(duì)全文的總結(jié),分析了所設(shè)計(jì)的天線方案的合理性及學(xué)術(shù)工程價(jià)值,并給出了本文存在的不足及后續(xù)的改進(jìn)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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN828.6
本文編號(hào)：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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN828.6
【參考文獻(xiàn)】
相關(guān)碩士學(xué)位論文 前1條
1 強(qiáng)云飛;應(yīng)用于LTE智能機(jī)的窄邊框天線技術(shù)研究[D];電子科技大學(xué);2015年
，本文編號(hào)：2457447
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