發(fā)布時間：2018-06-22 19:34

  本文選題：諧振環(huán) + 多天線��； 參考：《南京信息工程大學(xué)》2017年碩士論文

【摘要】：MIMO技術(shù)作為LTE的關(guān)鍵技術(shù),通過增加天線數(shù)量的方式來提高信道容量,大大提升了天線系統(tǒng)的性能。然而在無線終端的有限空間中使用多天線技術(shù),會造成天線之間的相互干擾嚴(yán)重,導(dǎo)致方向圖惡化,輻射效率降低等一系列問題。諧振環(huán)作為一種“超材料”能通過適當(dāng)?shù)臄[放和調(diào)整起到改善天線隔離度的目的。本文針對MIMO天線系統(tǒng)存在的天線間干擾問題。研究了利用諧振環(huán)這種“超材料”來改善天線間隔離度的方法。將其應(yīng)用在了 2-MIMO, 8-MIMO,10-MIMO手機(jī)天線中,通過適當(dāng)調(diào)整,諧振環(huán)取得了不錯的去耦效果。最后將周期性諧振環(huán)實驗性的應(yīng)用在2-MIMO微帶天線中,以一種“隔離屏”的形式存在,同樣起到了改善隔離度的目的。本文內(nèi)容布局分以下幾部分:第一,介紹了國內(nèi)外有關(guān)諧振環(huán)的研究現(xiàn)狀和研究的意義;第二,介紹了諧振環(huán)的由來,諧振環(huán)的特性參數(shù),以及諧振環(huán)的去耦原理;第三,分別將諧振環(huán)應(yīng)用在2-MIMO天線、8-MIMO天線、10-MIMO天線中,通過適當(dāng)?shù)恼{(diào)試,使其達(dá)到改善天線隔離度的目的;第四,最后設(shè)計了一種具有周期性諧振環(huán)結(jié)構(gòu)的“隔離屏”,將“隔離屏”放置在2-MIMO微帶天線之間,成功的改善了天線的隔離度。
[Abstract]:As a key technology of LTE, MIMO increases the channel capacity by increasing the number of antennas, and greatly improves the performance of antenna systems. However, the use of multi-antenna technology in the limited space of wireless terminals will cause serious interference between antennas, lead to the deterioration of pattern, and reduce the radiation efficiency and a series of problems. As a kind of metamaterial, resonant ring can improve antenna isolation by proper placement and adjustment. In this paper, the problem of inter-antenna interference in MIMO antenna systems is discussed. The method of improving the isolation between antennas by using the resonant ring as a "metamaterial" is studied. It has been applied to 2-MIMO-8-MIMO-10-MIMO mobile phone antenna, and the resonant ring has achieved good decoupling effect through proper adjustment. Finally, the experimental application of periodic resonant ring in 2-MIMO microstrip antenna, which exists in the form of "isolation screen", also plays the purpose of improving the isolation degree. The content of this paper is divided into the following parts: firstly, the research status and significance of the resonant ring at home and abroad are introduced; second, the origin of the resonant ring, the characteristic parameters of the resonant ring and the decoupling principle of the resonant ring are introduced; third, the decoupling principle of the resonant ring is introduced. The resonant ring is applied to 2-MIMO antenna, 8-MIMO antenna and 10-MIMO antenna respectively. Through proper debugging, the isolation degree of the antenna is improved. Fourthly, a kind of "isolation screen" with periodic resonant ring structure is designed. The isolation screen is placed between 2-MIMO microstrip antennas, which improves the isolation of the antenna successfully.
【學(xué)位授予單位】：南京信息工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN919.3

【參考文獻(xiàn)】

中國期刊全文數(shù)據(jù)庫 前2條

1 尤肖虎;潘志文;高西奇;曹淑敏;鄔賀銓;;5G移動通信發(fā)展趨勢與若干關(guān)鍵技術(shù)[J];中國科學(xué):信息科學(xué);2014年05期

2 顧超;裴志斌;屈紹波;馬華;王甲富;張介秋;;諧振頻率可調(diào)的開口諧振單環(huán)結(jié)構(gòu)[J];通信技術(shù);2008年12期

中國博士學(xué)位論文全文數(shù)據(jù)庫 前1條

1 張輝;超常介質(zhì)的電磁特性及其應(yīng)用研究[D];國防科學(xué)技術(shù)大學(xué);2009年

中國碩士學(xué)位論文全文數(shù)據(jù)庫 前3條

1 吳裕婷;緊湊型MIMO天線的設(shè)計與研究[D];華南理工大學(xué);2014年

2 李洪濤;電磁超材料及其功能結(jié)構(gòu)單元在微帶天線中的應(yīng)用[D];電子科技大學(xué);2012年

3 江莉;微帶陣列天線互耦抑制技術(shù)的研究[D];電子科技大學(xué);2008年

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本文編號：2053997