【摘要】：隨著移動(dòng)通信技術(shù)的飛速發(fā)展,市場(chǎng)對(duì)手機(jī)終端提出了越來(lái)越高的要求。手機(jī)天線作為手機(jī)的重要部件之一,其性能直接影響著手機(jī)的整體性能和外型設(shè)計(jì)。手機(jī)天線的小型化、多頻帶、寬帶化設(shè)計(jì)是當(dāng)前天線設(shè)計(jì)的熱點(diǎn)和難點(diǎn)。本文就是針對(duì)手機(jī)天線研究的熱點(diǎn)和發(fā)展趨勢(shì),在對(duì)手機(jī)天線小型化、多頻帶設(shè)計(jì)做了重點(diǎn)闡述的基礎(chǔ)上,以當(dāng)前主流手機(jī)內(nèi)置天線PIFA天線為基礎(chǔ),采用曲流和折疊等技術(shù)設(shè)計(jì)出了幾種小型化、多頻帶工作的手機(jī)內(nèi)置天線。 本文介紹了各類手機(jī)天線。 PIFA天線以其體積小、易于組陣、易于制作和低的SAR值等優(yōu)點(diǎn)成為當(dāng)前手機(jī)內(nèi)置天線中使用最為廣泛的天線。因此,它也是本文介紹的重點(diǎn)內(nèi)容。本文借助仿真軟件HFSS,經(jīng)過(guò)反復(fù)調(diào)整和多次優(yōu)化,最終設(shè)計(jì)出了三款小型化和多頻帶工作的PIFA手機(jī)天線,包括兩款雙頻帶、一款三頻帶(GSM/DCS/ISM) PIFA手機(jī)天線。在對(duì)手機(jī)天線小型化和多頻帶設(shè)計(jì)的幾種方法分析比較之后,采用雙L型槽實(shí)現(xiàn)雙頻帶(GSM/DCS)的小型化設(shè)計(jì)；采用U型槽和折疊相結(jié)合的方法實(shí)現(xiàn)雙頻帶(GSM/ISM)的設(shè)計(jì)；采用雙U型槽和折疊技術(shù)相結(jié)合的方法實(shí)現(xiàn)三頻帶(GSM/DCS/ISM)的設(shè)計(jì)。與其他的設(shè)計(jì)方法相比,以上方法具有設(shè)計(jì)簡(jiǎn)單、易于實(shí)現(xiàn)等優(yōu)點(diǎn),也是手機(jī)內(nèi)置天線設(shè)計(jì)中采用較多的方法。通過(guò)仿真和優(yōu)化,三款天線基本滿足了手機(jī)天線的性能要求,有著很好的應(yīng)用前景。 最后本文對(duì)所做工作進(jìn)行了總結(jié)和展望,并提出了論文存在不足和有待改善的地方。
[Abstract]:With the rapid development of mobile communication technology, the market has put forward higher and higher requirements for mobile terminals. As one of the important components of mobile phone, the performance of antenna has a direct impact on the overall performance and appearance design of mobile phone. The miniaturization, multi-band and wideband design of mobile antenna is a hot and difficult point in antenna design. This paper is aimed at the hot spot and development trend of mobile phone antenna research, on the basis of focusing on the miniaturization and multi-band design of mobile phone antenna, based on the current mainstream mobile phone built-in antenna PIFA antenna. Several miniaturized and multi-band mobile phone built-in antennas are designed by using meandering and folding techniques. This paper introduces various kinds of mobile phone antennas. PIFA antenna has become the most widely used antenna in mobile phone because of its small size, easy array, easy fabrication and low SAR value. Therefore, it is also the focus of this article. With the aid of the simulation software HFSS, after repeated adjustment and multiple optimization, three miniaturized and multi-band PIFA mobile phone antennas are designed, including two dual-band antennas and one three-band (GSM/DCS/ISM) PIFA mobile phone antenna. After the analysis and comparison of several methods of antenna miniaturization and multi-band design, the miniaturization design of dual-band (GSM/DCS) is realized by using double-L slot, and the design of dual-band (GSM/ISM) is realized by combining U-groove and folding. The design of three frequency band (GSM/DCS/ISM) is realized by the combination of double U groove and folding technique. Compared with other design methods, these methods have the advantages of simple design and easy implementation. Through simulation and optimization, the three antennas basically meet the performance requirements of the mobile phone antenna, and have a good application prospect. Finally, this paper summarizes and prospects the work done, and points out the deficiency and the need to be improved.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.53

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本文編號(hào)：2159918