發(fā)布時(shí)間：2019-01-21 10:59

【摘要】：2013年年底,基于核心技術(shù)-LTE (LONG TERM EVOLUTION)的第四代移動(dòng)通信牌照的發(fā)放,意味著我國(guó)移動(dòng)通信行業(yè)進(jìn)入了4G時(shí)代,對(duì)手機(jī)來(lái)說(shuō)又增加了一個(gè)頻段,如何在不增加復(fù)雜度的前提下天線實(shí)現(xiàn)多頻段覆蓋成為了業(yè)界關(guān)注的焦點(diǎn)之一。另一方面,隨著國(guó)內(nèi)加工工藝的發(fā)展,為增加手機(jī)外殼的強(qiáng)度、美化手機(jī),各大手機(jī)廠商競(jìng)相推出了金屬邊框手機(jī)。但由于金屬邊框?qū)κ謾C(jī)天線電磁場(chǎng)輻射有很大影響,金屬框會(huì)使手機(jī)天線的頻帶變窄、效率降低。因此,要在金屬框手機(jī)上實(shí)現(xiàn)LTE全頻段,是一大挑戰(zhàn)。本文在金屬邊框手機(jī)天線調(diào)試過(guò)程中,深入分析優(yōu)化,引入調(diào)諧技術(shù),實(shí)現(xiàn)金屬邊框手機(jī)LTE天線技術(shù)。 論文首先介紹了金屬邊框手機(jī)以及LTE技術(shù)的發(fā)展,并分析了國(guó)內(nèi)外金屬邊框手機(jī)LTE天線技術(shù)的情況,簡(jiǎn)要介紹了論文的內(nèi)容。 然后介紹了手機(jī)天線的原理以及相應(yīng)的無(wú)源參數(shù)和有源參數(shù),如S參數(shù),駐波,效率,帶寬等,全向輻射效率(TRP),全向接收靈敏度(TIS)以及電磁波吸收比率(SAR),討論了手機(jī)天線的幾種形式以及天線的測(cè)試系統(tǒng)。接著通過(guò)制作模擬板對(duì)金屬邊框手機(jī)LTE天線進(jìn)行初步調(diào)試,挑選出一種比較好的方案。并且采用HFSS15仿真軟件進(jìn)行仿真,優(yōu)化分析天線的無(wú)源S參數(shù)性能,將實(shí)物調(diào)試數(shù)據(jù)與HFSS仿真數(shù)據(jù)做對(duì)比。 最后采用激光直接成型(LDS-LASER DIRECT STRUCTURING)工藝加工成成品天線組件,并對(duì)該金屬邊框手機(jī)進(jìn)行有源數(shù)據(jù)測(cè)試。測(cè)試結(jié)果表明：本文設(shè)計(jì)天線的有源性能在GSM、CDMA、WCDMA、TD-SCDMA、LTE五個(gè)模式共18個(gè)頻段均達(dá)到中移動(dòng)入庫(kù)指標(biāo)。
[Abstract]:At the end of 2013, the issuance of the fourth generation mobile communication license based on LTE (LONG TERM EVOLUTION), the core technology, means that the mobile communication industry in our country has entered the 4G era, which has added a frequency band to the mobile phone. How to achieve multi-band coverage without increasing complexity has become one of the focuses in the industry. On the other hand, with the development of domestic processing technology, in order to increase the strength of mobile phone shell and beautify the mobile phone, the major mobile phone manufacturers have launched metal border mobile phone. However, metal border has great influence on electromagnetic radiation of mobile phone antenna. Metal frame will narrow the frequency band and reduce the efficiency of mobile phone antenna. Therefore, it is a challenge to achieve full-frequency LTE on metal-framed mobile phones. In this paper, during the debugging process of metal border mobile phone antenna, the optimization is deeply analyzed, and the tuning technology is introduced to realize the metal border mobile phone LTE antenna technology. Firstly, this paper introduces the development of metal border mobile phone and LTE technology, analyzes the LTE antenna technology of metal border mobile phone at home and abroad, and briefly introduces the content of the paper. Then the principle of mobile phone antenna and the corresponding passive and active parameters, such as S parameter, standing wave, efficiency, bandwidth, omnidirectional radiation efficiency (TRP), omnidirectional receiver sensitivity (TIS) and electromagnetic wave absorption ratio (SAR), are introduced. Several forms of mobile phone antenna and the antenna testing system are discussed. Then the LTE antenna of metal border mobile phone is preliminarily debugged by making analogue board, and a better scheme is selected. The HFSS15 simulation software is used to optimize and analyze the passive S-parameter performance of the antenna. The physical debugging data is compared with the HFSS simulation data. Finally, laser direct molding (LDS-LASER DIRECT STRUCTURING) process was used to fabricate the finished antenna module, and the active data of the metal border cell phone was tested. The test results show that the active performance of the antenna designed in this paper can reach the mid-moving storage target in 18 frequency bands of five modes of GSM,CDMA,WCDMA,TD-SCDMA,LTE.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN929.53

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相關(guān)期刊論文 前1條

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本文編號(hào)：2412594